Version 7.4.3: Improved handling of anonymous host types; [V8] [JScript] added support for JSON modules; [V8] made host object toJSON method non-enumerable; [V8] added enhanced compilation APIs (GitHub Issue #521); [V8] added debugger connection events (GitHub Issue #518); added Microsoft.ClearScript.Complete NuGet package (GitHub Issue #515); updated API documentation. Tested with V8 11.6.189.18.

ClearScript.NoV8.sln.DotSettings

@@ -104,7 +104,6 @@
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Numerics/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=oleaut/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Parameterless/@EntryIndexedValue">True</s:Boolean>
-	
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Plex/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=prog/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Ptrs/@EntryIndexedValue">True</s:Boolean>

ClearScript.sln.DotSettings

@@ -104,7 +104,6 @@
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Numerics/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=oleaut/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Parameterless/@EntryIndexedValue">True</s:Boolean>
-	
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Plex/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=prog/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/UserDictionary/Words/=Ptrs/@EntryIndexedValue">True</s:Boolean>

ClearScript/ByRefArg.cs

@@ -46,34 +46,34 @@ namespace Microsoft.ClearScript
 
         public override object DynamicInvokeTarget => target.DynamicInvokeTarget;
 
-        public override HostTargetFlags GetFlags(IHostInvokeContext context)
+        public override HostTargetFlags GetFlags(IHostContext context)
         {
             return target.GetFlags(context);
         }
 
-        public override string[] GetAuxMethodNames(IHostInvokeContext context, BindingFlags bindFlags)
+        public override string[] GetAuxMethodNames(IHostContext context, BindingFlags bindFlags)
         {
             return target.GetAuxMethodNames(context, bindFlags);
         }
 
-        public override string[] GetAuxPropertyNames(IHostInvokeContext context, BindingFlags bindFlags)
+        public override string[] GetAuxPropertyNames(IHostContext context, BindingFlags bindFlags)
         {
             return target.GetAuxPropertyNames(context, bindFlags);
         }
 
-        public override bool TryInvokeAuxMember(IHostInvokeContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvokeAuxMember(IHostContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             return target.TryInvokeAuxMember(context, name, invokeFlags, args, bindArgs, out result);
         }
 
-        public override bool TryInvoke(IHostInvokeContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvoke(IHostContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             return target.TryInvoke(context, invokeFlags, args, bindArgs, out result);
         }
 
-        public override Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public override Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
-            return target.GetInvocability(bindFlags, accessContext, defaultAccess, ignoreDynamic);
+            return target.GetInvocability(context, bindFlags, ignoreDynamic);
         }
 
         #endregion

ClearScript/DefaultDocumentLoader.cs

@@ -309,9 +309,11 @@ namespace Microsoft.ClearScript
             }
 
             var document = CacheDocument((bytes != null) ? new StringDocument(documentInfo, bytes) : new StringDocument(documentInfo, contents), false);
-            if (!settings.AccessFlags.HasFlag(DocumentAccessFlags.AllowCategoryMismatch) && (documentInfo.Category != (category ?? DocumentCategory.Script)))
+
+            var expectedCategory = category ?? DocumentCategory.Script;
+            if (!settings.AccessFlags.HasFlag(DocumentAccessFlags.AllowCategoryMismatch) && (documentInfo.Category != expectedCategory))
             {
-                throw new FileLoadException("Document category mismatch", uri.IsFile ? uri.LocalPath : uri.AbsoluteUri);
+                throw new FileLoadException($"Document category mismatch: '{expectedCategory}' expected, '{documentInfo.Category}' loaded", uri.IsFile ? uri.LocalPath : uri.AbsoluteUri);
             }
 
             return document;
@@ -426,7 +428,7 @@ namespace Microsoft.ClearScript
         public override Document CacheDocument(Document document, bool replace)
         {
             MiscHelpers.VerifyNonNullArgument(document, nameof(document));
-            if (!document.Info.Uri.IsAbsoluteUri)
+            if ((document.Info.Uri == null) || !document.Info.Uri.IsAbsoluteUri)
             {
                 throw new ArgumentException("The document must have an absolute URI");
             }

ClearScript/DocumentCategory.cs

@@ -34,6 +34,13 @@ namespace Microsoft.ClearScript
         /// </summary>
         public static DocumentCategory Script => ScriptDocument.Instance;
 
+        /// <summary>
+        /// Gets the document category for JSON documents.
+        /// </summary>
+        public static DocumentCategory Json => JsonDocument.Instance;
+
+        internal abstract DocumentKind Kind { get; }
+
         internal abstract string DefaultName { get; }
 
         #region Nested type: ScriptDocument
@@ -48,6 +55,8 @@ namespace Microsoft.ClearScript
 
             #region DocumentCategory overrides
 
+            internal override DocumentKind Kind => DocumentKind.Script;
+
             internal override string DefaultName => "Script";
 
             #endregion
@@ -63,5 +72,35 @@ namespace Microsoft.ClearScript
         }
 
         #endregion
+
+        #region Nested type: JsonDocument
+
+        private sealed class JsonDocument : DocumentCategory
+        {
+            public static readonly JsonDocument Instance = new JsonDocument();
+
+            private JsonDocument()
+            {
+            }
+
+            #region DocumentCategory overrides
+
+            internal override DocumentKind Kind => DocumentKind.Json;
+
+            internal override string DefaultName => "JSON";
+
+            #endregion
+
+            #region Object overrides
+
+            public override string ToString()
+            {
+                return "JSON Document";
+            }
+
+            #endregion
+        }
+
+        #endregion
     }
 }

ClearScript/DocumentKind.cs

@@ -0,0 +1,14 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+namespace Microsoft.ClearScript
+{
+    internal enum DocumentKind
+    {
+        // IMPORTANT: maintain bitwise equivalence with native enum DocumentKind
+        Script,
+        JavaScriptModule,
+        CommonJSModule,
+        Json
+    }
+}

ClearScript/Exports/VersionSymbols.h

@@ -5,7 +5,7 @@
 
 #pragma once
 
-#define CLEARSCRIPT_VERSION_STRING "7.4.2"
-#define CLEARSCRIPT_VERSION_COMMA_SEPARATED 7,4,2
-#define CLEARSCRIPT_VERSION_STRING_INFORMATIONAL "7.4.2"
+#define CLEARSCRIPT_VERSION_STRING "7.4.3"
+#define CLEARSCRIPT_VERSION_COMMA_SEPARATED 7,4,3
+#define CLEARSCRIPT_VERSION_STRING_INFORMATIONAL "7.4.3"
 #define CLEARSCRIPT_FILE_FLAGS 0L

ClearScript/ExtensionMethods.cs

@@ -17,13 +17,13 @@ namespace Microsoft.ClearScript
 
         public ExtensionMethodSummary Summary { get; private set; } = new ExtensionMethodSummary();
 
-        public bool ProcessType(Type type, Type accessContext, ScriptAccess defaultAccess)
+        public bool ProcessType(Type type, IHostContext context)
         {
             Debug.Assert(type.IsSpecific());
             if (!table.ContainsKey(type) && type.HasExtensionMethods())
             {
                 const BindingFlags bindFlags = BindingFlags.Public | BindingFlags.Static;
-                table[type] = type.GetMethods(bindFlags).Where(method => IsScriptableExtensionMethod(method, accessContext, defaultAccess)).ToArray();
+                table[type] = type.GetMethods(bindFlags).Where(method => IsScriptableExtensionMethod(method, context)).ToArray();
                 RebuildSummary();
                 return true;
             }
@@ -36,9 +36,9 @@ namespace Microsoft.ClearScript
             Summary = new ExtensionMethodSummary(table);
         }
 
-        private static bool IsScriptableExtensionMethod(MethodInfo method, Type accessContext, ScriptAccess defaultAccess)
+        private static bool IsScriptableExtensionMethod(MethodInfo method, IHostContext context)
         {
-            return method.IsScriptable(accessContext, defaultAccess) && method.HasCustomAttributes<ExtensionAttribute>(false);
+            return method.IsScriptable(context) && method.HasCustomAttributes<ExtensionAttribute>(false);
         }
     }
 

ClearScript/HostIndexedProperty.cs

@@ -39,17 +39,17 @@ namespace Microsoft.ClearScript
 
         public override object DynamicInvokeTarget => null;
 
-        public override HostTargetFlags GetFlags(IHostInvokeContext context)
+        public override HostTargetFlags GetFlags(IHostContext context)
         {
             return HostTargetFlags.None;
         }
 
-        public override string[] GetAuxMethodNames(IHostInvokeContext context, BindingFlags bindFlags)
+        public override string[] GetAuxMethodNames(IHostContext context, BindingFlags bindFlags)
         {
             return auxMethodNames;
         }
 
-        public override bool TryInvokeAuxMember(IHostInvokeContext context, string memberName, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvokeAuxMember(IHostContext context, string memberName, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             if (invokeFlags.HasFlag(BindingFlags.InvokeMethod))
             {
@@ -70,13 +70,13 @@ namespace Microsoft.ClearScript
             return false;
         }
 
-        public override bool TryInvoke(IHostInvokeContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvoke(IHostContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             result = target.InvokeMember(name, (invokeFlags.HasFlag(BindingFlags.SetField) ? BindingFlags.SetProperty : BindingFlags.GetProperty) | BindingFlags.SuppressChangeType, args, bindArgs, null, true);
             return true;
         }
 
-        public override Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public override Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
             return Invocability.Delegate;
         }

ClearScript/HostItem.InvokeMethod.cs

@@ -270,7 +270,7 @@ namespace Microsoft.ClearScript
 
         private IEnumerable<string> GetAltMethodNamesInternal(string name, BindingFlags bindFlags)
         {
-            foreach (var method in Target.Type.GetScriptableMethods(name, bindFlags, AccessContext, DefaultAccess))
+            foreach (var method in Target.Type.GetScriptableMethods(this, name, bindFlags))
             {
                 var methodName = method.GetShortName();
                 if (methodName != name)
@@ -387,7 +387,7 @@ namespace Microsoft.ClearScript
 
         private IEnumerable<MethodInfo> GetReflectionCandidates(BindingFlags bindFlags, Type type, string name, Type[] typeArgs)
         {
-            foreach (var method in type.GetScriptableMethods(name, bindFlags, AccessContext, DefaultAccess))
+            foreach (var method in type.GetScriptableMethods(this, name, bindFlags))
             {
                 MethodInfo tempMethod = null;
 

ClearScript/HostItem.cs

@@ -18,7 +18,7 @@ using Microsoft.ClearScript.Util.COM;
 
 namespace Microsoft.ClearScript
 {
-    internal partial class HostItem : DynamicObject, IReflect, IDynamic, IEnumVARIANT, ICustomQueryInterface, IScriptMarshalWrapper, IHostInvokeContext
+    internal partial class HostItem : DynamicObject, IReflect, IDynamic, IEnumVARIANT, ICustomQueryInterface, IScriptMarshalWrapper, IHostTargetContext
     {
         #region data
 
@@ -122,7 +122,7 @@ namespace Microsoft.ClearScript
             {
                 if (TargetInvocability == null)
                 {
-                    TargetInvocability = Target.GetInvocability(GetCommonBindFlags(), AccessContext, DefaultAccess, Flags.HasFlag(HostItemFlags.HideDynamicMembers));
+                    TargetInvocability = Target.GetInvocability(this, GetCommonBindFlags(), Flags.HasFlag(HostItemFlags.HideDynamicMembers));
                 }
 
                 return TargetInvocability.GetValueOrDefault();
@@ -362,7 +362,7 @@ namespace Microsoft.ClearScript
             set => targetMemberData.TargetInvocability = value;
         }
 
-        private Type CurrentAccessContext => (Flags.HasFlag(HostItemFlags.PrivateAccess) || (Target.Type.IsAnonymous() && !Engine.EnforceAnonymousTypeAccess)) ? Target.Type : Engine.AccessContext;
+        private Type CurrentAccessContext => Flags.HasFlag(HostItemFlags.PrivateAccess) ? Target.Type : Engine.AccessContext;
 
         private ScriptAccess CurrentDefaultAccess => Engine.DefaultAccess;
 
@@ -613,7 +613,7 @@ namespace Microsoft.ClearScript
         {
             if (TypeEventNames == null)
             {
-                var localEvents = Target.Type.GetScriptableEvents(GetCommonBindFlags(), AccessContext, DefaultAccess);
+                var localEvents = Target.Type.GetScriptableEvents(this, GetCommonBindFlags());
                 TypeEventNames = localEvents.Select(eventInfo => eventInfo.GetScriptName()).ToArray();
             }
 
@@ -624,7 +624,7 @@ namespace Microsoft.ClearScript
         {
             if (TypeFieldNames == null)
             {
-                var localFields = Target.Type.GetScriptableFields(GetCommonBindFlags(), AccessContext, DefaultAccess);
+                var localFields = Target.Type.GetScriptableFields(this, GetCommonBindFlags());
                 TypeFieldNames = localFields.Select(field => field.GetScriptName()).ToArray();
             }
 
@@ -635,7 +635,7 @@ namespace Microsoft.ClearScript
         {
             if (TypeMethodNames == null)
             {
-                var localMethods = Target.Type.GetScriptableMethods(GetMethodBindFlags(), AccessContext, DefaultAccess);
+                var localMethods = Target.Type.GetScriptableMethods(this, GetMethodBindFlags());
                 TypeMethodNames = localMethods.Select(method => method.GetScriptName()).ToArray();
             }
 
@@ -646,7 +646,7 @@ namespace Microsoft.ClearScript
         {
             if (TypePropertyNames == null)
             {
-                var localProperties = Target.Type.GetScriptableProperties(GetCommonBindFlags(), AccessContext, DefaultAccess);
+                var localProperties = Target.Type.GetScriptableProperties(this, GetCommonBindFlags());
                 TypePropertyNames = localProperties.Select(property => property.GetScriptName()).ToArray();
             }
 
@@ -1402,7 +1402,7 @@ namespace Microsoft.ClearScript
 
             if (name == SpecialMemberNames.Default)
             {
-                var defaultProperty = Target.Type.GetScriptableDefaultProperty(invokeFlags, args, bindArgs, AccessContext, DefaultAccess);
+                var defaultProperty = Target.Type.GetScriptableDefaultProperty(this, invokeFlags, args, bindArgs);
                 if (defaultProperty != null)
                 {
                     return GetHostProperty(signature, defaultProperty, invokeFlags, args);
@@ -1511,7 +1511,7 @@ namespace Microsoft.ClearScript
                 }
             }
 
-            var property = Target.Type.GetScriptableProperty(name, invokeFlags, args, bindArgs, AccessContext, DefaultAccess);
+            var property = Target.Type.GetScriptableProperty(this, name, invokeFlags, args, bindArgs);
             if (property != null)
             {
                 return GetHostProperty(signature, property, invokeFlags, args);
@@ -1522,14 +1522,14 @@ namespace Microsoft.ClearScript
                 throw new MissingMemberException(MiscHelpers.FormatInvariant("The object has no suitable property named '{0}'", name));
             }
 
-            var eventInfo = Target.Type.GetScriptableEvent(name, invokeFlags, AccessContext, DefaultAccess);
+            var eventInfo = Target.Type.GetScriptableEvent(this, name, invokeFlags);
             if (eventInfo != null)
             {
                 isCacheable = (TargetDynamicMetaObject == null);
                 return typeof(EventSource<>).MakeSpecificType(eventInfo.EventHandlerType).CreateInstance(BindingFlags.NonPublic, Engine, Target.InvokeTarget, eventInfo);
             }
 
-            var field = Target.Type.GetScriptableField(name, invokeFlags, AccessContext, DefaultAccess);
+            var field = Target.Type.GetScriptableField(this, name, invokeFlags);
             if (field != null)
             {
                 return GetHostField(signature, field, out isCacheable);
@@ -1537,7 +1537,7 @@ namespace Microsoft.ClearScript
 
             if (includeBoundMembers)
             {
-                if (Target.Type.GetScriptableProperties(name, invokeFlags, AccessContext, DefaultAccess).Any())
+                if (Target.Type.GetScriptableProperties(this, name, invokeFlags).Any())
                 {
                     if (HostIndexedPropertyMap == null)
                     {
@@ -1600,7 +1600,7 @@ namespace Microsoft.ClearScript
             }
 
             var getMethod = property.GetMethod;
-            if ((getMethod == null) || !getMethod.IsAccessible(AccessContext) || getMethod.IsBlockedFromScript(property.GetScriptAccess(DefaultAccess), false))
+            if ((getMethod == null) || !getMethod.IsAccessible(this) || getMethod.IsBlockedFromScript(property.GetScriptAccess(DefaultAccess), false))
             {
                 throw new UnauthorizedAccessException("The property get method is unavailable or inaccessible");
             }
@@ -1654,7 +1654,7 @@ namespace Microsoft.ClearScript
 
                 object result;
 
-                var defaultProperty = Target.Type.GetScriptableDefaultProperty(invokeFlags, args.Take(args.Length - 1).ToArray(), bindArgs.Take(bindArgs.Length - 1).ToArray(), AccessContext, DefaultAccess);
+                var defaultProperty = Target.Type.GetScriptableDefaultProperty(this, invokeFlags, args.Take(args.Length - 1).ToArray(), bindArgs.Take(bindArgs.Length - 1).ToArray());
                 if (defaultProperty != null)
                 {
                     return SetHostProperty(signature, defaultProperty, args, bindArgs);
@@ -1735,13 +1735,13 @@ namespace Microsoft.ClearScript
                 throw new InvalidOperationException("Invalid argument count");
             }
 
-            var property = Target.Type.GetScriptableProperty(name, invokeFlags, args.Take(args.Length - 1).ToArray(), bindArgs.Take(bindArgs.Length - 1).ToArray(), AccessContext, DefaultAccess);
+            var property = Target.Type.GetScriptableProperty(this, name, invokeFlags, args.Take(args.Length - 1).ToArray(), bindArgs.Take(bindArgs.Length - 1).ToArray());
             if (property != null)
             {
                 return SetHostProperty(signature, property, args, bindArgs);
             }
 
-            var field = Target.Type.GetScriptableField(name, invokeFlags, AccessContext, DefaultAccess);
+            var field = Target.Type.GetScriptableField(this, name, invokeFlags);
             if (field != null)
             {
                 return SetHostField(signature, field, args);
@@ -1759,7 +1759,7 @@ namespace Microsoft.ClearScript
             }
 
             var setMethod = property.SetMethod;
-            if ((setMethod == null) || !setMethod.IsAccessible(AccessContext) || setMethod.IsBlockedFromScript(scriptAccess, false))
+            if ((setMethod == null) || !setMethod.IsAccessible(this) || setMethod.IsBlockedFromScript(scriptAccess, false))
             {
                 throw new UnauthorizedAccessException("The property set method is unavailable or inaccessible");
             }
@@ -2366,7 +2366,7 @@ namespace Microsoft.ClearScript
 
         #endregion
 
-        #region IHostInvokeContext implementation
+        #region IHostTargetContext implementation
 
         public Type AccessContext => CachedAccessContext;
 

ClearScript/HostMethod.cs

@@ -37,18 +37,18 @@ namespace Microsoft.ClearScript
 
         public override object DynamicInvokeTarget => null;
 
-        public override HostTargetFlags GetFlags(IHostInvokeContext context)
+        public override HostTargetFlags GetFlags(IHostContext context)
         {
             return HostTargetFlags.None;
         }
 
-        public override bool TryInvoke(IHostInvokeContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvoke(IHostContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             result = target.InvokeMember(name, invokeFlags, args, bindArgs, null, true);
             return true;
         }
 
-        public override Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public override Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
             return Invocability.Delegate;
         }

ClearScript/HostObject.cs

@@ -125,7 +125,7 @@ namespace Microsoft.ClearScript
 
         public override object DynamicInvokeTarget => target;
 
-        public override HostTargetFlags GetFlags(IHostInvokeContext context)
+        public override HostTargetFlags GetFlags(IHostContext context)
         {
             var flags = HostTargetFlags.AllowInstanceMembers | HostTargetFlags.AllowExtensionMethods;
             if (context.Engine.ExposeHostObjectStaticMembers)
@@ -136,9 +136,9 @@ namespace Microsoft.ClearScript
             return flags;
         }
 
-        public override Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public override Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
-            return type.GetInvocability(bindFlags, accessContext, defaultAccess, ignoreDynamic);
+            return type.GetInvocability(context, bindFlags, ignoreDynamic);
         }
 
         #endregion

ClearScript/HostTarget.cs

@@ -17,30 +17,30 @@ namespace Microsoft.ClearScript
 
         public abstract object DynamicInvokeTarget { get; }
 
-        public abstract HostTargetFlags GetFlags(IHostInvokeContext context);
+        public abstract HostTargetFlags GetFlags(IHostContext context);
 
-        public virtual string[] GetAuxMethodNames(IHostInvokeContext context, BindingFlags bindFlags)
+        public virtual string[] GetAuxMethodNames(IHostContext context, BindingFlags bindFlags)
         {
             return ArrayHelpers.GetEmptyArray<string>();
         }
 
-        public virtual string[] GetAuxPropertyNames(IHostInvokeContext context, BindingFlags bindFlags)
+        public virtual string[] GetAuxPropertyNames(IHostContext context, BindingFlags bindFlags)
         {
             return ArrayHelpers.GetEmptyArray<string>();
         }
 
-        public virtual bool TryInvokeAuxMember(IHostInvokeContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public virtual bool TryInvokeAuxMember(IHostContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             result = null;
             return false;
         }
 
-        public virtual bool TryInvoke(IHostInvokeContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public virtual bool TryInvoke(IHostContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             result = null;
             return false;
         }
 
-        public abstract Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic);
+        public abstract Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic);
     }
 }

ClearScript/HostType.cs

@@ -142,29 +142,29 @@ namespace Microsoft.ClearScript
 
         public override object DynamicInvokeTarget => GetSpecificType();
 
-        public override HostTargetFlags GetFlags(IHostInvokeContext context)
+        public override HostTargetFlags GetFlags(IHostContext context)
         {
             var type = GetSpecificTypeNoThrow();
             return (type != null) ? HostTargetFlags.AllowStaticMembers : HostTargetFlags.None;
         }
 
-        public override string[] GetAuxPropertyNames(IHostInvokeContext context, BindingFlags bindFlags)
+        public override string[] GetAuxPropertyNames(IHostContext context, BindingFlags bindFlags)
         {
             var type = GetSpecificTypeNoThrow();
             if (type != null)
             {
-                return type.GetScriptableNestedTypes(bindFlags, context.AccessContext, context.DefaultAccess).Select(testType => testType.GetRootName()).Distinct().ToArray();
+                return type.GetScriptableNestedTypes(context, bindFlags).Select(testType => testType.GetRootName()).Distinct().ToArray();
             }
 
             return ArrayHelpers.GetEmptyArray<string>();
         }
 
-        public override bool TryInvokeAuxMember(IHostInvokeContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvokeAuxMember(IHostContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             var type = GetSpecificTypeNoThrow();
             if (type != null)
             {
-                var nestedTypes = type.GetScriptableNestedTypes(invokeFlags, context.AccessContext, context.DefaultAccess).Where(testType => string.Equals(testType.GetRootName(), name, invokeFlags.GetMemberNameComparison())).ToIList();
+                var nestedTypes = type.GetScriptableNestedTypes(context, invokeFlags).Where(testType => string.Equals(testType.GetRootName(), name, invokeFlags.GetMemberNameComparison())).ToIList();
                 if (nestedTypes.Count > 0)
                 {
                     var tempResult = Wrap(nestedTypes.Select(testType => testType.ApplyTypeArguments(type.GetGenericArguments())).ToArray());
@@ -190,7 +190,7 @@ namespace Microsoft.ClearScript
             return false;
         }
 
-        public override bool TryInvoke(IHostInvokeContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvoke(IHostContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             if (!invokeFlags.HasFlag(BindingFlags.InvokeMethod) || (args.Length < 1))
             {
@@ -216,7 +216,7 @@ namespace Microsoft.ClearScript
             return true;
         }
 
-        public override Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public override Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
             return Invocability.Delegate;
         }

ClearScript/HostVariable.cs

@@ -18,7 +18,7 @@ namespace Microsoft.ClearScript
     {
         private static readonly string[] auxPropertyNames = { "out", "ref", "value" };
 
-        public override string[] GetAuxPropertyNames(IHostInvokeContext context, BindingFlags bindFlags)
+        public override string[] GetAuxPropertyNames(IHostContext context, BindingFlags bindFlags)
         {
             return auxPropertyNames;
         }
@@ -70,7 +70,7 @@ namespace Microsoft.ClearScript
 
         public override object DynamicInvokeTarget => Value;
 
-        public override HostTargetFlags GetFlags(IHostInvokeContext context)
+        public override HostTargetFlags GetFlags(IHostContext context)
         {
             var flags = HostTargetFlags.AllowInstanceMembers | HostTargetFlags.AllowExtensionMethods;
             if (context.Engine.ExposeHostObjectStaticMembers)
@@ -81,7 +81,7 @@ namespace Microsoft.ClearScript
             return flags;
         }
 
-        public override bool TryInvokeAuxMember(IHostInvokeContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvokeAuxMember(IHostContext context, string name, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             const BindingFlags getPropertyFlags =
                 BindingFlags.GetField |
@@ -147,9 +147,9 @@ namespace Microsoft.ClearScript
             return false;
         }
 
-        public override Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public override Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
-            return typeof(T).GetInvocability(bindFlags, accessContext, defaultAccess, ignoreDynamic);
+            return typeof(T).GetInvocability(context, bindFlags, ignoreDynamic);
         }
 
         #endregion

ClearScript/JavaScript/CommonJSManager.cs

@@ -53,7 +53,6 @@ namespace Microsoft.ClearScript.JavaScript
                     }).valueOf()
                 ");
             }
-
         }
 
         public int ModuleCacheSize => moduleCache.Count;
@@ -203,12 +202,9 @@ namespace Microsoft.ClearScript.JavaScript
             private object Require(string specifier)
             {
                 var document = engine.DocumentSettings.LoadDocument(DocumentInfo.Info, specifier, ModuleCategory.CommonJS, null);
-                if (document.Info.Category != ModuleCategory.CommonJS)
-                {
-                    var uri = document.Info.Uri;
-                    throw new FileLoadException("Document category mismatch", uri.IsFile ? uri.LocalPath : uri.AbsoluteUri);
-                }
 
+                if (document.Info.Category == ModuleCategory.CommonJS)
+                {
                     var code = document.GetTextContents();
                     if (engine.FormatCode)
                     {
@@ -221,6 +217,16 @@ namespace Microsoft.ClearScript.JavaScript
                     return target.exports;
                 }
 
+                if (document.Info.Category == DocumentCategory.Json)
+                {
+                    return ((IJavaScriptEngine)engine).JsonModuleManager.GetOrCreateModule(document.Info.MakeUnique(engine), document.GetTextContents()).Result;
+                }
+
+                var uri = document.Info.Uri;
+                var name = (uri != null) ? (uri.IsFile ? uri.LocalPath : uri.AbsoluteUri) : document.Info.Name;
+                throw new FileLoadException($"Unsupported document category '{document.Info.Category}'", name);
+            }
+
             private ScriptObject InitializeContext(ScriptObject context)
             {
                 var callback = DocumentInfo.ContextCallback ?? engine.DocumentSettings.ContextCallback;

ClearScript/JavaScript/IJavaScriptEngine.cs

@@ -11,6 +11,7 @@ namespace Microsoft.ClearScript.JavaScript
         uint BaseLanguageVersion { get; }
 
         CommonJSManager CommonJSManager { get; }
+        JsonModuleManager JsonModuleManager { get; }
 
         object CreatePromiseForTask<T>(Task<T> task);
         object CreatePromiseForTask(Task task);

ClearScript/JavaScript/JsonModuleManager.cs

@@ -0,0 +1,110 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.ClearScript.Util;
+
+namespace Microsoft.ClearScript.JavaScript
+{
+    internal sealed class JsonModuleManager
+    {
+        private readonly ScriptEngine engine;
+        private readonly List<Module> moduleCache = new List<Module>();
+
+        public JsonModuleManager(ScriptEngine engine)
+        {
+            this.engine = engine;
+        }
+
+        public int ModuleCacheSize => moduleCache.Count;
+
+        public Module GetOrCreateModule(UniqueDocumentInfo documentInfo, string json)
+        {
+            var jsonDigest = json.GetDigest();
+
+            var cachedModule = GetCachedModule(documentInfo, jsonDigest);
+            if (cachedModule != null)
+            {
+                return cachedModule;
+            }
+
+            return CacheModule(new Module(engine, documentInfo, jsonDigest, json));
+        }
+
+        private Module GetCachedModule(UniqueDocumentInfo documentInfo, UIntPtr jsonDigest)
+        {
+            for (var index = 0; index < moduleCache.Count; index++)
+            {
+                var cachedModule = moduleCache[index];
+                if ((cachedModule.DocumentInfo.UniqueId == documentInfo.UniqueId) && (cachedModule.JsonDigest == jsonDigest))
+                {
+                    moduleCache.RemoveAt(index);
+                    moduleCache.Insert(0, cachedModule);
+                    return cachedModule;
+                }
+            }
+
+            return null;
+        }
+
+        private Module CacheModule(Module module)
+        {
+            var cachedModule = moduleCache.FirstOrDefault(testModule => (testModule.DocumentInfo.UniqueId == module.DocumentInfo.UniqueId) && (testModule.JsonDigest == module.JsonDigest));
+            if (cachedModule != null)
+            {
+                return cachedModule;
+            }
+
+            var maxModuleCacheSize = Math.Max(16, Convert.ToInt32(Math.Min(DocumentCategory.Json.MaxCacheSize, int.MaxValue)));
+            while (moduleCache.Count >= maxModuleCacheSize)
+            {
+                moduleCache.RemoveAt(moduleCache.Count - 1);
+            }
+
+            moduleCache.Insert(0, module);
+            return module;
+        }
+
+        #region Nested type: Module
+
+        public sealed class Module
+        {
+            private readonly ScriptEngine engine;
+            private readonly string json;
+
+            private bool parsed;
+            private object result;
+
+            public Module(ScriptEngine engine, UniqueDocumentInfo documentInfo, UIntPtr jsonDigest, string json)
+            {
+                this.engine = engine;
+                this.json = json;
+
+                DocumentInfo = documentInfo;
+                JsonDigest = jsonDigest;
+            }
+
+            public UniqueDocumentInfo DocumentInfo { get; }
+
+            public UIntPtr JsonDigest { get; }
+
+            public object Result
+            {
+                get
+                {
+                    if (!parsed)
+                    {
+                        parsed = true;
+                        result = ((ScriptObject)engine.Global.GetProperty("EngineInternal")).InvokeMethod("parseJson", json);
+                    }
+
+                    return result;
+                }
+            }
+        }
+
+        #endregion
+    }
+}

ClearScript/JavaScript/ModuleCategory.cs

@@ -30,6 +30,8 @@ namespace Microsoft.ClearScript.JavaScript
 
             #region DocumentCategory overrides
 
+            internal override DocumentKind Kind => DocumentKind.JavaScriptModule;
+
             internal override string DefaultName => "Module";
 
             #endregion
@@ -58,6 +60,8 @@ namespace Microsoft.ClearScript.JavaScript
 
             #region DocumentCategory overrides
 
+            internal override DocumentKind Kind => DocumentKind.CommonJSModule;
+
             internal override string DefaultName => "Module";
 
             #endregion

ClearScript/Properties/AssemblyInfo.Core.cs

@@ -18,15 +18,15 @@ using System.Runtime.InteropServices;
 [assembly: InternalsVisibleTo("ClearScriptTest")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]
 
 namespace Microsoft.ClearScript.Properties
 {
     internal static class ClearScriptVersion
     {
-        public const string Triad = "7.4.2";
-        public const string Informational = "7.4.2";
+        public const string Triad = "7.4.3";
+        public const string Informational = "7.4.3";
     }
 }

ClearScript/Properties/AssemblyInfo.V8.ICUData.cs

@@ -15,6 +15,6 @@ using System.Runtime.InteropServices;
 [assembly: InternalsVisibleTo("ClearScript.V8")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]

ClearScript/Properties/AssemblyInfo.V8.cs

@@ -15,6 +15,6 @@ using System.Runtime.InteropServices;
 [assembly: InternalsVisibleTo("ClearScriptTest")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]

ClearScript/Properties/AssemblyInfo.Windows.Core.cs

@@ -16,6 +16,6 @@ using System.Runtime.InteropServices;
 [assembly: InternalsVisibleTo("ClearScriptTest")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]

ClearScript/Properties/AssemblyInfo.Windows.cs

@@ -15,6 +15,6 @@ using System.Runtime.InteropServices;
 [assembly: InternalsVisibleTo("ClearScriptTest")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]

ClearScript/ScriptEngine.cs

@@ -13,7 +13,7 @@ namespace Microsoft.ClearScript
     /// <summary>
     /// Provides the base implementation for all script engines.
     /// </summary>
-    public abstract class ScriptEngine : IScriptEngine
+    public abstract class ScriptEngine : IScriptEngine, IHostContext
     {
         #region data
 
@@ -80,7 +80,7 @@ namespace Microsoft.ClearScript
         /// <inheritdoc/>
         public abstract string FileNameExtension { get; }
 
-        /// <inheritdoc/>
+        /// <inheritdoc cref="ScriptEngine" />
         public Type AccessContext
         {
             get => accessContext;
@@ -92,7 +92,7 @@ namespace Microsoft.ClearScript
             }
         }
 
-        /// <inheritdoc/>
+        /// <inheritdoc cref="ScriptEngine" />
         public ScriptAccess DefaultAccess
         {
             get => defaultAccess;
@@ -760,7 +760,7 @@ namespace Microsoft.ClearScript
         {
             if (extensionMethodTable != emptyExtensionMethodTable)
             {
-                if (extensionMethodTable.ProcessType(type, AccessContext, DefaultAccess))
+                if (extensionMethodTable.ProcessType(type, this))
                 {
                     ClearMethodBindCache();
                 }
@@ -1130,6 +1130,12 @@ namespace Microsoft.ClearScript
 
         #endregion
 
+        #region IHostContext implementation
+
+        ScriptEngine IHostContext.Engine => this;
+
+        #endregion
+
         #region Nested type: ScriptFrame
 
         internal sealed class ScriptFrame

ClearScript/ScriptMethod.cs

@@ -43,18 +43,18 @@ namespace Microsoft.ClearScript
 
         public override object DynamicInvokeTarget => null;
 
-        public override HostTargetFlags GetFlags(IHostInvokeContext context)
+        public override HostTargetFlags GetFlags(IHostContext context)
         {
             return HostTargetFlags.None;
         }
 
-        public override bool TryInvoke(IHostInvokeContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
+        public override bool TryInvoke(IHostContext context, BindingFlags invokeFlags, object[] args, object[] bindArgs, out object result)
         {
             result = target.InvokeMethod(name, args);
             return true;
         }
 
-        public override Invocability GetInvocability(BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public override Invocability GetInvocability(IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
             return Invocability.Delegate;
         }

ClearScript/Util/DynamicHelpers.cs

@@ -134,12 +134,12 @@ namespace Microsoft.ClearScript.Util
             return TryDynamicOperation(() => target.CreateInstance(args), out result);
         }
 
-        public static bool TryInvoke(this DynamicMetaObject target, IHostInvokeContext context, object[] args, out object result)
+        public static bool TryInvoke(this DynamicMetaObject target, IHostContext context, object[] args, out object result)
         {
             return TryDynamicOperation(() => target.Invoke(args), out result);
         }
 
-        public static bool TryInvokeMember(this DynamicMetaObject target, IHostInvokeContext context, string name, BindingFlags invokeFlags, object[] args, out object result)
+        public static bool TryInvokeMember(this DynamicMetaObject target, IHostContext context, string name, BindingFlags invokeFlags, object[] args, out object result)
         {
             return TryDynamicOperation(() => target.InvokeMember(context, name, invokeFlags, args), out result);
         }
@@ -384,7 +384,7 @@ namespace Microsoft.ClearScript.Util
             return Invoke(block, paramExprs, args);
         }
 
-        private static object InvokeMember(this DynamicMetaObject target, IHostInvokeContext context, string name, BindingFlags invokeFlags, object[] args)
+        private static object InvokeMember(this DynamicMetaObject target, IHostContext context, string name, BindingFlags invokeFlags, object[] args)
         {
             var paramNames = Enumerable.Range(0, args.Length).Select(index => "a" + index).ToArray();
             var paramExprs = paramNames.Select((paramName, index) => Expression.Parameter(GetParamTypeForArg(args[index]), paramName)).ToArray();
@@ -687,10 +687,10 @@ namespace Microsoft.ClearScript.Util
         private sealed class DynamicInvokeMemberBinder : InvokeMemberBinder
         {
             private static readonly MethodInfo invokeMemberValueMethod = typeof(DynamicInvokeMemberBinder).GetMethod("InvokeMemberValue", BindingFlags.NonPublic | BindingFlags.Static);
-            private readonly IHostInvokeContext context;
+            private readonly IHostContext context;
             private readonly BindingFlags invokeFlags;
 
-            public DynamicInvokeMemberBinder(IHostInvokeContext context, string name, BindingFlags invokeFlags, string[] paramNames)
+            public DynamicInvokeMemberBinder(IHostContext context, string name, BindingFlags invokeFlags, string[] paramNames)
                 : base(name, false, new CallInfo(paramNames.Length, paramNames))
             {
                 this.context = context;
@@ -731,7 +731,7 @@ namespace Microsoft.ClearScript.Util
 
             // ReSharper disable UnusedMember.Local
 
-            private static object InvokeMemberValue(IHostInvokeContext context, object target, BindingFlags invokeFlags, object[] args)
+            private static object InvokeMemberValue(IHostContext context, object target, BindingFlags invokeFlags, object[] args)
             {
                 if (InvokeHelpers.TryInvokeObject(context, target, BindingFlags.InvokeMethod, args, args, true, out var result))
                 {

ClearScript/Util/IHostContext.cs

@@ -5,11 +5,10 @@ using System;
 
 namespace Microsoft.ClearScript.Util
 {
-    internal interface IHostInvokeContext
+    internal interface IHostContext
     {
         ScriptEngine Engine { get; }
         Type AccessContext { get; }
         ScriptAccess DefaultAccess { get; }
-        HostTargetFlags TargetFlags { get; }
     }
 }

ClearScript/Util/IHostTargetContext.cs

@@ -0,0 +1,10 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+namespace Microsoft.ClearScript.Util
+{
+    internal interface IHostTargetContext : IHostContext
+    {
+        HostTargetFlags TargetFlags { get; }
+    }
+}

ClearScript/Util/InvokeHelpers.cs

@@ -11,22 +11,22 @@ namespace Microsoft.ClearScript.Util
 {
     internal static class InvokeHelpers
     {
-        public static object InvokeMethod(IHostInvokeContext context, MethodInfo method, object target, object[] args, ScriptMemberFlags flags)
+        public static object InvokeMethod(IHostContext context, MethodInfo method, object target, object[] args, ScriptMemberFlags flags)
         {
             return InvokeMethodInternal(context, method, target, args, (invokeMethod, invokeTarget, invokeArgs) => invokeMethod.Invoke(invokeTarget, invokeArgs), method.ReturnType, flags);
         }
 
-        public static object InvokeConstructor(IHostInvokeContext context, ConstructorInfo constructor, object[] args)
+        public static object InvokeConstructor(IHostContext context, ConstructorInfo constructor, object[] args)
         {
             return InvokeMethodInternal(context, constructor, null, args, (invokeConstructor, invokeTarget, invokeArgs) => invokeConstructor.Invoke(invokeArgs), constructor.DeclaringType, ScriptMemberFlags.None);
         }
 
-        public static object InvokeDelegate(IHostInvokeContext context, Delegate del, object[] args)
+        public static object InvokeDelegate(IHostContext context, Delegate del, object[] args)
         {
             return InvokeMethod(context, del.GetType().GetMethod("Invoke"), del, args, ScriptMemberFlags.None);
         }
 
-        public static bool TryInvokeObject(IHostInvokeContext context, object target, BindingFlags invokeFlags, object[] args, object[] bindArgs, bool tryDynamic, out object result)
+        public static bool TryInvokeObject(IHostContext context, object target, BindingFlags invokeFlags, object[] args, object[] bindArgs, bool tryDynamic, out object result)
         {
             if (target is HostTarget hostTarget)
             {
@@ -73,7 +73,7 @@ namespace Microsoft.ClearScript.Util
             return false;
         }
 
-        private static object InvokeMethodInternal<T>(IHostInvokeContext context, T method, object target, object[] args, Func<T, object, object[], object> invoker, Type returnType, ScriptMemberFlags flags) where T : MethodBase
+        private static object InvokeMethodInternal<T>(IHostContext context, T method, object target, object[] args, Func<T, object, object[], object> invoker, Type returnType, ScriptMemberFlags flags) where T : MethodBase
         {
             var argList = new List<object>();
             var byRefArgInfo = new List<ByRefArgItem>();

ClearScript/Util/MemberHelpers.cs

@@ -11,41 +11,41 @@ namespace Microsoft.ClearScript.Util
 {
     internal static class MemberHelpers
     {
-        public static bool IsScriptable(this EventInfo eventInfo, Type accessContext, ScriptAccess defaultAccess)
+        public static bool IsScriptable(this EventInfo eventInfo, IHostContext context)
         {
-            return !eventInfo.IsSpecialName && !eventInfo.IsExplicitImplementation() && eventInfo.IsAccessible(accessContext) && !eventInfo.IsBlockedFromScript(defaultAccess);
+            return !eventInfo.IsSpecialName && !eventInfo.IsExplicitImplementation() && eventInfo.IsAccessible(context) && !eventInfo.IsBlockedFromScript(context.DefaultAccess);
         }
 
-        public static bool IsScriptable(this FieldInfo field, Type accessContext, ScriptAccess defaultAccess)
+        public static bool IsScriptable(this FieldInfo field, IHostContext context)
         {
-            return !field.IsSpecialName && field.IsAccessible(accessContext) && !field.IsBlockedFromScript(defaultAccess);
+            return !field.IsSpecialName && field.IsAccessible(context) && !field.IsBlockedFromScript(context.DefaultAccess);
         }
 
-        public static bool IsScriptable(this MethodInfo method, Type accessContext, ScriptAccess defaultAccess)
+        public static bool IsScriptable(this MethodInfo method, IHostContext context)
         {
-            return !method.IsSpecialName && !method.IsExplicitImplementation() && method.IsAccessible(accessContext) && !method.IsBlockedFromScript(defaultAccess);
+            return !method.IsSpecialName && !method.IsExplicitImplementation() && method.IsAccessible(context) && !method.IsBlockedFromScript(context.DefaultAccess);
         }
 
-        public static bool IsScriptable(this PropertyInfo property, Type accessContext, ScriptAccess defaultAccess)
+        public static bool IsScriptable(this PropertyInfo property, IHostContext context)
         {
-            return !property.IsSpecialName && !property.IsExplicitImplementation() && property.IsAccessible(accessContext) && !property.IsBlockedFromScript(defaultAccess);
+            return !property.IsSpecialName && !property.IsExplicitImplementation() && property.IsAccessible(context) && !property.IsBlockedFromScript(context.DefaultAccess);
         }
 
-        public static bool IsScriptable(this Type type, Type accessContext, ScriptAccess defaultAccess)
+        public static bool IsScriptable(this Type type, IHostContext context)
         {
-            return !type.IsSpecialName && type.IsAccessible(accessContext) && !type.IsBlockedFromScript(defaultAccess);
+            return !type.IsSpecialName && type.IsAccessible(context) && !type.IsBlockedFromScript(context.DefaultAccess);
         }
 
-        public static bool IsAccessible(this EventInfo eventInfo, Type accessContext)
+        public static bool IsAccessible(this EventInfo eventInfo, IHostContext context)
         {
-            return eventInfo.AddMethod.IsAccessible(accessContext);
+            return eventInfo.AddMethod.IsAccessible(context);
         }
 
-        public static bool IsAccessible(this FieldInfo field, Type accessContext)
+        public static bool IsAccessible(this FieldInfo field, IHostContext context)
         {
             var type = field.DeclaringType;
 
-            if (!type.IsAccessible(accessContext))
+            if (!type.IsAccessible(context))
             {
                 return false;
             }
@@ -57,6 +57,8 @@ namespace Microsoft.ClearScript.Util
                 return true;
             }
 
+            var accessContext = context.AccessContext;
+
             if (accessContext == null)
             {
                 return false;
@@ -90,11 +92,11 @@ namespace Microsoft.ClearScript.Util
             return false;
         }
 
-        public static bool IsAccessible(this MethodBase method, Type accessContext)
+        public static bool IsAccessible(this MethodBase method, IHostContext context)
         {
             var type = method.DeclaringType;
 
-            if (!type.IsAccessible(accessContext))
+            if (!type.IsAccessible(context))
             {
                 return false;
             }
@@ -106,6 +108,8 @@ namespace Microsoft.ClearScript.Util
                 return true;
             }
 
+            var accessContext = context.AccessContext;
+
             if (accessContext == null)
             {
                 return false;
@@ -139,21 +143,21 @@ namespace Microsoft.ClearScript.Util
             return false;
         }
 
-        public static bool IsAccessible(this MethodInfo method, Type accessContext)
+        public static bool IsAccessible(this MethodInfo method, IHostContext context)
         {
-            return ((MethodBase)method.GetBaseDefinition()).IsAccessible(accessContext);
+            return ((MethodBase)method.GetBaseDefinition()).IsAccessible(context);
         }
 
-        public static bool IsAccessible(this PropertyInfo property, Type accessContext)
+        public static bool IsAccessible(this PropertyInfo property, IHostContext context)
         {
             var getMethod = property.GetMethod;
-            if ((getMethod != null) && getMethod.IsAccessible(accessContext))
+            if ((getMethod != null) && getMethod.IsAccessible(context))
             {
                 return true;
             }
 
             var setMethod = property.SetMethod;
-            if ((setMethod != null) && setMethod.IsAccessible(accessContext))
+            if ((setMethod != null) && setMethod.IsAccessible(context))
             {
                 return true;
             }
@@ -161,18 +165,20 @@ namespace Microsoft.ClearScript.Util
             return false;
         }
 
-        public static bool IsAccessible(this Type type, Type accessContext)
+        public static bool IsAccessible(this Type type, IHostContext context)
         {
-            var visibility = type.Attributes & TypeAttributes.VisibilityMask;
+            var visibility = (type.IsAnonymous() && !context.Engine.EnforceAnonymousTypeAccess) ? TypeAttributes.Public : type.Attributes & TypeAttributes.VisibilityMask;
 
             if (visibility == TypeAttributes.Public)
             {
                 return true;
             }
 
+            var accessContext = context.AccessContext;
+
             if (accessContext == null)
             {
-                return (visibility == TypeAttributes.NestedPublic) && type.DeclaringType.IsAccessible(null);
+                return (visibility == TypeAttributes.NestedPublic) && type.DeclaringType.IsAccessible(context);
             }
 
             if (visibility == TypeAttributes.NotPublic)
@@ -182,7 +188,7 @@ namespace Microsoft.ClearScript.Util
 
             type = type.DeclaringType;
 
-            if (!type.IsAccessible(accessContext))
+            if (!type.IsAccessible(context))
             {
                 return false;
             }

ClearScript/Util/TypeHelpers.cs

@@ -324,22 +324,22 @@ namespace Microsoft.ClearScript.Util
             return type.GetGenericArguments().Count(typeArg => typeArg.IsGenericParameter);
         }
 
-        public static IEnumerable<EventInfo> GetScriptableEvents(this Type type, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<EventInfo> GetScriptableEvents(this Type type, IHostContext context, BindingFlags bindFlags)
         {
             var events = type.GetEvents(bindFlags).AsEnumerable();
             if (type.IsInterface)
             {
-                events = events.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableEvents(bindFlags, accessContext, defaultAccess)));
+                events = events.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableEvents(context, bindFlags)));
             }
 
-            return events.Where(eventInfo => eventInfo.IsScriptable(accessContext, defaultAccess));
+            return events.Where(eventInfo => eventInfo.IsScriptable(context));
         }
 
-        public static EventInfo GetScriptableEvent(this Type type, string name, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static EventInfo GetScriptableEvent(this Type type, IHostContext context, string name, BindingFlags bindFlags)
         {
             try
             {
-                var eventInfo = type.GetScriptableEventInternal(name, bindFlags, accessContext, defaultAccess);
+                var eventInfo = type.GetScriptableEventInternal(context, name, bindFlags);
                 if (eventInfo != null)
                 {
                     return eventInfo;
@@ -349,54 +349,54 @@ namespace Microsoft.ClearScript.Util
             {
             }
 
-            return type.GetScriptableEvents(bindFlags, accessContext, defaultAccess).FirstOrDefault(eventInfo => string.Equals(eventInfo.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
+            return type.GetScriptableEvents(context, bindFlags).FirstOrDefault(eventInfo => string.Equals(eventInfo.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
         }
 
-        public static IEnumerable<FieldInfo> GetScriptableFields(this Type type, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<FieldInfo> GetScriptableFields(this Type type, IHostContext context, BindingFlags bindFlags)
         {
-            return type.GetFields(bindFlags).Where(field => field.IsScriptable(accessContext, defaultAccess));
+            return type.GetFields(bindFlags).Where(field => field.IsScriptable(context));
         }
 
-        public static FieldInfo GetScriptableField(this Type type, string name, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static FieldInfo GetScriptableField(this Type type, IHostContext context, string name, BindingFlags bindFlags)
         {
             var candidate = type.GetField(name, bindFlags);
-            if ((candidate != null) && candidate.IsScriptable(accessContext, defaultAccess) && string.Equals(candidate.GetScriptName(), name, bindFlags.GetMemberNameComparison()))
+            if ((candidate != null) && candidate.IsScriptable(context) && string.Equals(candidate.GetScriptName(), name, bindFlags.GetMemberNameComparison()))
             {
                 return candidate;
             }
 
-            return type.GetScriptableFields(bindFlags, accessContext, defaultAccess).FirstOrDefault(field => string.Equals(field.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
+            return type.GetScriptableFields(context, bindFlags).FirstOrDefault(field => string.Equals(field.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
         }
 
-        public static IEnumerable<MethodInfo> GetScriptableMethods(this Type type, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<MethodInfo> GetScriptableMethods(this Type type, IHostContext context, BindingFlags bindFlags)
         {
             var methods = type.GetMethods(bindFlags).AsEnumerable();
             if (type.IsInterface)
             {
-                methods = methods.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableMethods(bindFlags, accessContext, defaultAccess)));
-                methods = methods.Concat(typeof(object).GetScriptableMethods(bindFlags, accessContext, defaultAccess));
+                methods = methods.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableMethods(context, bindFlags)));
+                methods = methods.Concat(typeof(object).GetScriptableMethods(context, bindFlags));
             }
 
-            return methods.Where(method => method.IsScriptable(accessContext, defaultAccess));
+            return methods.Where(method => method.IsScriptable(context));
         }
 
-        public static IEnumerable<MethodInfo> GetScriptableMethods(this Type type, string name, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<MethodInfo> GetScriptableMethods(this Type type, IHostContext context, string name, BindingFlags bindFlags)
         {
-            return type.GetScriptableMethods(bindFlags, accessContext, defaultAccess).Where(method => string.Equals(method.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
+            return type.GetScriptableMethods(context, bindFlags).Where(method => string.Equals(method.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
         }
 
-        public static IEnumerable<PropertyInfo> GetScriptableProperties(this Type type, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<PropertyInfo> GetScriptableProperties(this Type type, IHostContext context, BindingFlags bindFlags)
         {
             var properties = type.GetProperties(bindFlags).AsEnumerable();
             if (type.IsInterface)
             {
-                properties = properties.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableProperties(bindFlags, accessContext, defaultAccess)));
+                properties = properties.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableProperties(context, bindFlags)));
             }
 
-            return properties.Where(property => property.IsScriptable(accessContext, defaultAccess));
+            return properties.Where(property => property.IsScriptable(context));
         }
 
-        public static IEnumerable<PropertyInfo> GetScriptableDefaultProperties(this Type type, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<PropertyInfo> GetScriptableDefaultProperties(this Type type, IHostContext context, BindingFlags bindFlags)
         {
             if (type.IsArray)
             {
@@ -407,30 +407,30 @@ namespace Microsoft.ClearScript.Util
             var properties = type.GetProperties(bindFlags).AsEnumerable();
             if (type.IsInterface)
             {
-                properties = properties.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableProperties(bindFlags, accessContext, defaultAccess)));
+                properties = properties.Concat(type.GetInterfaces().SelectMany(interfaceType => interfaceType.GetScriptableProperties(context, bindFlags)));
             }
 
             var defaultMembers = type.GetDefaultMembers();
-            return properties.Where(property => property.IsScriptable(accessContext, defaultAccess) && (defaultMembers.Contains(property) || property.IsDispID(SpecialDispIDs.Default)));
+            return properties.Where(property => property.IsScriptable(context) && (defaultMembers.Contains(property) || property.IsDispID(SpecialDispIDs.Default)));
         }
 
-        public static IEnumerable<PropertyInfo> GetScriptableProperties(this Type type, string name, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<PropertyInfo> GetScriptableProperties(this Type type, IHostContext context, string name, BindingFlags bindFlags)
         {
-            return type.GetScriptableProperties(bindFlags, accessContext, defaultAccess).Where(property => string.Equals(property.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
+            return type.GetScriptableProperties(context, bindFlags).Where(property => string.Equals(property.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
         }
 
-        public static PropertyInfo GetScriptableProperty(this Type type, string name, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static PropertyInfo GetScriptableProperty(this Type type, IHostContext context, string name, BindingFlags bindFlags)
         {
             var candidates = type.GetProperty(name, bindFlags)?.ToEnumerable() ?? Enumerable.Empty<PropertyInfo>();
             if (type.IsInterface)
             {
-                candidates = candidates.Concat(type.GetInterfaces().Select(interfaceType => interfaceType.GetScriptableProperty(name, bindFlags, accessContext, defaultAccess)));
+                candidates = candidates.Concat(type.GetInterfaces().Select(interfaceType => interfaceType.GetScriptableProperty(context, name, bindFlags)));
             }
 
             try
             {
                 // ReSharper disable once RedundantEnumerableCastCall
-                return candidates.OfType<PropertyInfo>().SingleOrDefault(property => (property.GetIndexParameters().Length < 1) && property.IsScriptable(accessContext, defaultAccess) && string.Equals(property.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
+                return candidates.OfType<PropertyInfo>().SingleOrDefault(property => (property.GetIndexParameters().Length < 1) && property.IsScriptable(context) && string.Equals(property.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
             }
             catch (InvalidOperationException exception)
             {
@@ -438,13 +438,13 @@ namespace Microsoft.ClearScript.Util
             }
         }
 
-        public static PropertyInfo GetScriptableProperty(this Type type, string name, BindingFlags bindFlags, object[] args, object[] bindArgs, Type accessContext, ScriptAccess defaultAccess)
+        public static PropertyInfo GetScriptableProperty(this Type type, IHostContext context, string name, BindingFlags bindFlags, object[] args, object[] bindArgs)
         {
             if (bindArgs.Length < 1)
             {
                 try
                 {
-                    var property = type.GetScriptableProperty(name, bindFlags, accessContext, defaultAccess);
+                    var property = type.GetScriptableProperty(context, name, bindFlags);
                     if (property != null)
                     {
                         return property;
@@ -455,24 +455,24 @@ namespace Microsoft.ClearScript.Util
                 }
             }
 
-            var candidates = type.GetScriptableProperties(name, bindFlags, accessContext, defaultAccess).Distinct(PropertySignatureComparer.Instance).ToArray();
+            var candidates = type.GetScriptableProperties(context, name, bindFlags).Distinct(PropertySignatureComparer.Instance).ToArray();
             return BindToMember(candidates, bindFlags, args, bindArgs);
         }
 
-        public static PropertyInfo GetScriptableDefaultProperty(this Type type, BindingFlags bindFlags, object[] args, object[] bindArgs, Type accessContext, ScriptAccess defaultAccess)
+        public static PropertyInfo GetScriptableDefaultProperty(this Type type, IHostContext context, BindingFlags bindFlags, object[] args, object[] bindArgs)
         {
-            var candidates = type.GetScriptableDefaultProperties(bindFlags, accessContext, defaultAccess).Distinct(PropertySignatureComparer.Instance).ToArray();
+            var candidates = type.GetScriptableDefaultProperties(context, bindFlags).Distinct(PropertySignatureComparer.Instance).ToArray();
             return BindToMember(candidates, bindFlags, args, bindArgs);
         }
 
-        public static IEnumerable<Type> GetScriptableNestedTypes(this Type type, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        public static IEnumerable<Type> GetScriptableNestedTypes(this Type type, IHostContext context, BindingFlags bindFlags)
         {
-            return type.GetNestedTypes(bindFlags).Where(nestedType => nestedType.IsScriptable(accessContext, defaultAccess));
+            return type.GetNestedTypes(bindFlags).Where(nestedType => nestedType.IsScriptable(context));
         }
 
-        public static Invocability GetInvocability(this Type type, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess, bool ignoreDynamic)
+        public static Invocability GetInvocability(this Type type, IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
-            return invocabilityMap.GetOrAdd(Tuple.Create(type, bindFlags, accessContext, defaultAccess, ignoreDynamic), GetInvocabilityInternal);
+            return invocabilityMap.GetOrAdd(Tuple.Create(type, bindFlags, context.AccessContext, context.DefaultAccess, ignoreDynamic), _ => GetInvocabilityInternal(type, context, bindFlags, ignoreDynamic));
         }
 
         public static object CreateInstance(this Type type, params object[] args)
@@ -485,7 +485,7 @@ namespace Microsoft.ClearScript.Util
             return type.InvokeMember(string.Empty, BindingFlags.CreateInstance | BindingFlags.Instance | (flags & ~BindingFlags.Static), null, null, args, CultureInfo.InvariantCulture);
         }
 
-        public static object CreateInstance(this Type type, IHostInvokeContext invokeContext, HostTarget target, object[] args, object[] bindArgs)
+        public static object CreateInstance(this Type type, IHostContext context, HostTarget target, object[] args, object[] bindArgs)
         {
             if (type.IsCOMObject)
             {
@@ -494,10 +494,10 @@ namespace Microsoft.ClearScript.Util
 
             const BindingFlags flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
 
-            var signature = new BindSignature(invokeContext.AccessContext, flags, target, type.TypeHandle.Value.ToString(), ArrayHelpers.GetEmptyArray<Type>(), bindArgs);
-            if (invokeContext.Engine.TryGetCachedConstructorBindResult(signature, out var boundConstructor))
+            var signature = new BindSignature(context.AccessContext, flags, target, type.TypeHandle.Value.ToString(), ArrayHelpers.GetEmptyArray<Type>(), bindArgs);
+            if (context.Engine.TryGetCachedConstructorBindResult(signature, out var boundConstructor))
             {
-                return InvokeHelpers.InvokeConstructor(invokeContext, boundConstructor, args);
+                return InvokeHelpers.InvokeConstructor(context, boundConstructor, args);
             }
 
             var constructors = type.GetConstructors(flags);
@@ -506,7 +506,7 @@ namespace Microsoft.ClearScript.Util
                 return type.CreateInstance();
             }
 
-            var candidates = constructors.Where(testConstructor => testConstructor.IsAccessible(invokeContext.AccessContext) && !testConstructor.IsBlockedFromScript(invokeContext.DefaultAccess)).ToArray();
+            var candidates = constructors.Where(testConstructor => testConstructor.IsAccessible(context) && !testConstructor.IsBlockedFromScript(context.DefaultAccess)).ToArray();
             if (candidates.Length < 1)
             {
                 throw new MissingMethodException(MiscHelpers.FormatInvariant("Type '{0}' has no constructor that matches the specified arguments", type.GetFullFriendlyName()));
@@ -518,8 +518,8 @@ namespace Microsoft.ClearScript.Util
                 throw new MissingMethodException(MiscHelpers.FormatInvariant("Type '{0}' has no constructor that matches the specified arguments", type.GetFullFriendlyName()));
             }
 
-            invokeContext.Engine.CacheConstructorBindResult(signature, constructor);
-            return InvokeHelpers.InvokeConstructor(invokeContext, constructor, args);
+            context.Engine.CacheConstructorBindResult(signature, constructor);
+            return InvokeHelpers.InvokeConstructor(context, constructor, args);
         }
 
         public static Type MakeSpecificType(this Type template, params Type[] typeArgs)
@@ -707,18 +707,18 @@ namespace Microsoft.ClearScript.Util
             return MiscHelpers.FormatInvariant("{0}{1}<{2}>", parentPrefix, name, paramList);
         }
 
-        private static EventInfo GetScriptableEventInternal(this Type type, string name, BindingFlags bindFlags, Type accessContext, ScriptAccess defaultAccess)
+        private static EventInfo GetScriptableEventInternal(this Type type, IHostContext context, string name, BindingFlags bindFlags)
         {
             var candidates = type.GetEvent(name, bindFlags)?.ToEnumerable() ?? Enumerable.Empty<EventInfo>();
             if (type.IsInterface)
             {
-                candidates = candidates.Concat(type.GetInterfaces().Select(interfaceType => interfaceType.GetScriptableEventInternal(name, bindFlags, accessContext, defaultAccess)));
+                candidates = candidates.Concat(type.GetInterfaces().Select(interfaceType => interfaceType.GetScriptableEventInternal(context, name, bindFlags)));
             }
 
             try
             {
                 // ReSharper disable once RedundantEnumerableCastCall
-                return candidates.OfType<EventInfo>().SingleOrDefault(eventInfo => eventInfo.IsScriptable(accessContext, defaultAccess) && string.Equals(eventInfo.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
+                return candidates.OfType<EventInfo>().SingleOrDefault(eventInfo => eventInfo.IsScriptable(context) && string.Equals(eventInfo.GetScriptName(), name, bindFlags.GetMemberNameComparison()));
             }
             catch (InvalidOperationException exception)
             {
@@ -726,10 +726,8 @@ namespace Microsoft.ClearScript.Util
             }
         }
 
-        private static Invocability GetInvocabilityInternal(Tuple<Type, BindingFlags, Type, ScriptAccess, bool> args)
+        private static Invocability GetInvocabilityInternal(Type type, IHostContext context, BindingFlags bindFlags, bool ignoreDynamic)
         {
-            var (type, bindFlags, accessContext, defaultAccess, ignoreDynamic) = args;
-
             if (typeof(Delegate).IsAssignableFrom(type))
             {
                 return Invocability.Delegate;
@@ -740,7 +738,7 @@ namespace Microsoft.ClearScript.Util
                 return Invocability.Dynamic;
             }
 
-            if (type.GetScriptableDefaultProperties(bindFlags, accessContext, defaultAccess).Any())
+            if (type.GetScriptableDefaultProperties(context, bindFlags).Any())
             {
                 return Invocability.DefaultProperty;
             }

ClearScript/V8/SplitProxy/IV8SplitProxyNative.cs

@@ -137,9 +137,10 @@ namespace Microsoft.ClearScript.V8.SplitProxy
         void V8Isolate_SetMaxStackUsage(V8Isolate.Handle hIsolate, UIntPtr size);
         void V8Isolate_AwaitDebuggerAndPause(V8Isolate.Handle hIsolate);
         void V8Isolate_CancelAwaitDebugger(V8Isolate.Handle hIsolate);
-        V8Script.Handle V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code);
-        V8Script.Handle V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes);
-        V8Script.Handle V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted);
+        V8Script.Handle V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code);
+        V8Script.Handle V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes);
+        V8Script.Handle V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted);
+        V8Script.Handle V8Isolate_CompileUpdatingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult);
         bool V8Isolate_GetEnableInterruptPropagation(V8Isolate.Handle hIsolate);
         void V8Isolate_SetEnableInterruptPropagation(V8Isolate.Handle hIsolate, bool value);
         bool V8Isolate_GetDisableHeapSizeViolationInterrupt(V8Isolate.Handle hIsolate);
@@ -169,10 +170,11 @@ namespace Microsoft.ClearScript.V8.SplitProxy
         void V8Context_AddGlobalItem(V8Context.Handle hContext, string name, object value, bool globalMembers);
         void V8Context_AwaitDebuggerAndPause(V8Context.Handle hContext);
         void V8Context_CancelAwaitDebugger(V8Context.Handle hContext);
-        object V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, bool evaluate);
-        V8Script.Handle V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code);
-        V8Script.Handle V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes);
-        V8Script.Handle V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted);
+        object V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, bool evaluate);
+        V8Script.Handle V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code);
+        V8Script.Handle V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes);
+        V8Script.Handle V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted);
+        V8Script.Handle V8Context_CompileUpdatingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult);
         object V8Context_ExecuteScript(V8Context.Handle hContext, V8Script.Handle hScript, bool evaluate);
         void V8Context_Interrupt(V8Context.Handle hContext);
         void V8Context_CancelInterrupt(V8Context.Handle hContext);

ClearScript/V8/SplitProxy/V8ContextProxyImpl.cs

@@ -3,8 +3,6 @@
 
 using System;
 using System.IO;
-using System.Runtime.InteropServices;
-using Microsoft.ClearScript.JavaScript;
 using Microsoft.ClearScript.Util;
 
 namespace Microsoft.ClearScript.V8.SplitProxy
@@ -76,7 +74,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
                 MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
                 documentInfo.UniqueId,
-                documentInfo.Category == ModuleCategory.Standard,
+                documentInfo.Category.Kind,
                 V8ProxyHelpers.AddRefHostObject(documentInfo),
                 code,
                 evaluate
@@ -90,7 +88,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
                 MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
                 documentInfo.UniqueId,
-                documentInfo.Category == ModuleCategory.Standard,
+                documentInfo.Category.Kind,
                 V8ProxyHelpers.AddRefHostObject(documentInfo),
                 code
             )));
@@ -110,7 +108,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
                 MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
                 documentInfo.UniqueId,
-                documentInfo.Category == ModuleCategory.Standard,
+                documentInfo.Category.Kind,
                 V8ProxyHelpers.AddRefHostObject(documentInfo),
                 code,
                 cacheKind,
@@ -129,18 +127,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 return Compile(documentInfo, code);
             }
 
-            var cacheSize = cacheBytes.Length;
-            using (var cacheBlock = new CoTaskMemBlock(cacheSize))
-            {
-                Marshal.Copy(cacheBytes, 0, cacheBlock.Addr, cacheSize);
-
             var tempCacheAccepted = false;
             var script = new V8ScriptImpl(documentInfo, code.GetDigest(), V8SplitProxyNative.Invoke(instance => instance.V8Context_CompileConsumingCache(
                 Handle,
                 MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
                 MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
                 documentInfo.UniqueId,
-                    documentInfo.Category == ModuleCategory.Standard,
+                documentInfo.Category.Kind,
                 V8ProxyHelpers.AddRefHostObject(documentInfo),
                 code,
                 cacheKind,
@@ -151,6 +144,51 @@ namespace Microsoft.ClearScript.V8.SplitProxy
             cacheAccepted = tempCacheAccepted;
             return script;
         }
+
+        public override V8.V8Script Compile(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            if (cacheKind == V8CacheKind.None)
+            {
+                cacheResult = V8CacheResult.Disabled;
+                return Compile(documentInfo, code);
+            }
+
+            V8.V8Script script;
+            var tempCacheBytes = cacheBytes;
+
+            if ((cacheBytes == null) || (cacheBytes.Length < 1))
+            {
+                script = Compile(documentInfo, code, cacheKind, out tempCacheBytes);
+                cacheResult = (tempCacheBytes != null) && (tempCacheBytes.Length > 0) ? V8CacheResult.Updated : V8CacheResult.UpdateFailed;
+                if (cacheResult == V8CacheResult.Updated)
+                {
+                    cacheBytes = tempCacheBytes;
+                }
+
+                return script;
+            }
+
+            var tempCacheResult = V8CacheResult.Disabled;
+            script = new V8ScriptImpl(documentInfo, code.GetDigest(), V8SplitProxyNative.Invoke(instance => instance.V8Context_CompileUpdatingCache(
+                Handle,
+                MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
+                MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
+                documentInfo.UniqueId,
+                documentInfo.Category.Kind,
+                V8ProxyHelpers.AddRefHostObject(documentInfo),
+                code,
+                cacheKind,
+                ref tempCacheBytes,
+                out tempCacheResult
+            )));
+
+            cacheResult = tempCacheResult;
+            if (cacheResult == V8CacheResult.Updated)
+            {
+                cacheBytes = tempCacheBytes;
+            }
+
+            return script;
         }
 
         public override object Execute(V8.V8Script script, bool evaluate)

ClearScript/V8/SplitProxy/V8IsolateProxyImpl.cs

@@ -3,8 +3,6 @@
 
 using System;
 using System.IO;
-using System.Runtime.InteropServices;
-using Microsoft.ClearScript.JavaScript;
 using Microsoft.ClearScript.Util;
 
 namespace Microsoft.ClearScript.V8.SplitProxy
@@ -75,7 +73,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
                 MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
                 documentInfo.UniqueId,
-                documentInfo.Category == ModuleCategory.Standard,
+                documentInfo.Category.Kind,
                 V8ProxyHelpers.AddRefHostObject(documentInfo),
                 code
             )));
@@ -95,7 +93,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
                 MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
                 documentInfo.UniqueId,
-                documentInfo.Category == ModuleCategory.Standard,
+                documentInfo.Category.Kind,
                 V8ProxyHelpers.AddRefHostObject(documentInfo),
                 code,
                 cacheKind,
@@ -114,18 +112,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 return Compile(documentInfo, code);
             }
 
-            var cacheSize = cacheBytes.Length;
-            using (var cacheBlock = new CoTaskMemBlock(cacheSize))
-            {
-                Marshal.Copy(cacheBytes, 0, cacheBlock.Addr, cacheSize);
-
             var tempCacheAccepted = false;
             var script = new V8ScriptImpl(documentInfo, code.GetDigest(), V8SplitProxyNative.Invoke(instance => instance.V8Isolate_CompileConsumingCache(
                 Handle,
                 MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
                 MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
                 documentInfo.UniqueId,
-                    documentInfo.Category == ModuleCategory.Standard,
+                documentInfo.Category.Kind,
                 V8ProxyHelpers.AddRefHostObject(documentInfo),
                 code,
                 cacheKind,
@@ -136,6 +129,51 @@ namespace Microsoft.ClearScript.V8.SplitProxy
             cacheAccepted = tempCacheAccepted;
             return script;
         }
+
+        public override V8.V8Script Compile(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            if (cacheKind == V8CacheKind.None)
+            {
+                cacheResult = V8CacheResult.Disabled;
+                return Compile(documentInfo, code);
+            }
+
+            V8.V8Script script;
+            var tempCacheBytes = cacheBytes;
+
+            if ((cacheBytes == null) || (cacheBytes.Length < 1))
+            {
+                script = Compile(documentInfo, code, cacheKind, out tempCacheBytes);
+                cacheResult = (tempCacheBytes != null) && (tempCacheBytes.Length > 0) ? V8CacheResult.Updated : V8CacheResult.UpdateFailed;
+                if (cacheResult == V8CacheResult.Updated)
+                {
+                    cacheBytes = tempCacheBytes;
+                }
+
+                return script;
+            }
+
+            var tempCacheResult = V8CacheResult.Disabled;
+            script = new V8ScriptImpl(documentInfo, code.GetDigest(), V8SplitProxyNative.Invoke(instance => instance.V8Isolate_CompileUpdatingCache(
+                Handle,
+                MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName),
+                MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty),
+                documentInfo.UniqueId,
+                documentInfo.Category.Kind,
+                V8ProxyHelpers.AddRefHostObject(documentInfo),
+                code,
+                cacheKind,
+                ref tempCacheBytes,
+                out tempCacheResult
+            )));
+
+            cacheResult = tempCacheResult;
+            if (cacheResult == V8CacheResult.Updated)
+            {
+                cacheBytes = tempCacheBytes;
+            }
+
+            return script;
         }
 
         public override bool EnableInterruptPropagation

ClearScript/V8/SplitProxy/V8SplitProxyManaged.cs

@@ -295,7 +295,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
             [In] StdString.Ptr pResourceName,
             [In] StdString.Ptr pSourceMapUrl,
             [Out] out ulong uniqueId,
-            [Out] [MarshalAs(UnmanagedType.I1)] out bool isModule,
+            [Out] out DocumentKind documentKind,
             [In] StdString.Ptr pCode,
             [Out] out IntPtr pDocumentInfo,
             [In] V8Value.Ptr pExports
@@ -801,7 +801,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
             V8ProxyHelpers.ReleaseHostObject(pTimer);
         }
 
-        private static void LoadModule(IntPtr pSourceDocumentInfo, StdString.Ptr pSpecifier, StdString.Ptr pResourceName, StdString.Ptr pSourceMapUrl, out ulong uniqueId, out bool isModule, StdString.Ptr pCode, out IntPtr pDocumentInfo, V8Value.Ptr pExports)
+        private static void LoadModule(IntPtr pSourceDocumentInfo, StdString.Ptr pSpecifier, StdString.Ptr pResourceName, StdString.Ptr pSourceMapUrl, out ulong uniqueId, out DocumentKind documentKind, StdString.Ptr pCode, out IntPtr pDocumentInfo, V8Value.Ptr pExports)
         {
             string code;
             UniqueDocumentInfo documentInfo;
@@ -815,7 +815,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
             {
                 ScheduleHostException(exception);
                 uniqueId = default;
-                isModule = default;
+                documentKind = default;
                 pDocumentInfo = default;
                 return;
             }
@@ -823,7 +823,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
             StdString.SetValue(pResourceName, MiscHelpers.GetUrlOrPath(documentInfo.Uri, documentInfo.UniqueName));
             StdString.SetValue(pSourceMapUrl, MiscHelpers.GetUrlOrPath(documentInfo.SourceMapUri, string.Empty));
             uniqueId = documentInfo.UniqueId;
-            isModule = documentInfo.Category == ModuleCategory.Standard;
+            documentKind = documentInfo.Category.Kind;
             StdString.SetValue(pCode, code);
             pDocumentInfo = V8ProxyHelpers.AddRefHostObject(documentInfo);
             V8Value.Set(pExports, exports);

ClearScript/V8/SplitProxy/V8SplitProxyNative.Common.tt

@@ -503,7 +503,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Isolate_CancelAwaitDebugger(hIsolate);
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -511,13 +511,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -527,7 +527,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -536,7 +536,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -546,7 +546,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileUpdatingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Isolate_CompileUpdatingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+
+                                return hScript;
                             }
                         }
                     }
@@ -701,7 +724,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Context_CancelAwaitDebugger(hContext);
             }
 
-            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, bool evaluate)
+            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, bool evaluate)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -711,7 +734,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var resultScope = V8Value.CreateScope())
                             {
-                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
+                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
                                 return V8Value.Get(resultScope.Value);
                             }
                         }
@@ -719,7 +742,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -727,13 +750,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -743,7 +766,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -752,7 +775,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -762,7 +785,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileUpdatingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Context_CompileUpdatingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+                
+                                return hScript;
                             }
                         }
                     }
@@ -1576,7 +1622,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -1587,7 +1633,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1600,7 +1646,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1608,6 +1654,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("<#= fileName #>", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Isolate_CompileUpdatingCache(
+                [In] V8Isolate.Handle hIsolate,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("<#= fileName #>", CallingConvention = CallingConvention.StdCall)]
             [return: MarshalAs(UnmanagedType.I1)]
             private static extern bool V8Isolate_GetEnableInterruptPropagation(
@@ -1770,7 +1830,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] [MarshalAs(UnmanagedType.I1)] bool evaluate,
@@ -1783,7 +1843,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -1794,7 +1854,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1807,7 +1867,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1815,6 +1875,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("<#= fileName #>", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Context_CompileUpdatingCache(
+                [In] V8Context.Handle hContext,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("<#= fileName #>", CallingConvention = CallingConvention.StdCall)]
             private static extern void V8Context_ExecuteScript(
                 [In] V8Context.Handle hContext,

ClearScript/V8/SplitProxy/V8SplitProxyNative.UWP.Generated.cs

@@ -501,7 +501,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Isolate_CancelAwaitDebugger(hIsolate);
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -509,13 +509,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -525,7 +525,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -534,7 +534,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -544,7 +544,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileUpdatingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Isolate_CompileUpdatingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+
+                                return hScript;
                             }
                         }
                     }
@@ -699,7 +722,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Context_CancelAwaitDebugger(hContext);
             }
 
-            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, bool evaluate)
+            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, bool evaluate)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -709,7 +732,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var resultScope = V8Value.CreateScope())
                             {
-                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
+                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
                                 return V8Value.Get(resultScope.Value);
                             }
                         }
@@ -717,7 +740,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -725,13 +748,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -741,7 +764,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -750,7 +773,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -760,7 +783,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileUpdatingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Context_CompileUpdatingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+                
+                                return hScript;
                             }
                         }
                     }
@@ -1574,7 +1620,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -1585,7 +1631,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1598,7 +1644,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1606,6 +1652,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("ClearScriptV8.win-x86.dll", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Isolate_CompileUpdatingCache(
+                [In] V8Isolate.Handle hIsolate,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("ClearScriptV8.win-x86.dll", CallingConvention = CallingConvention.StdCall)]
             [return: MarshalAs(UnmanagedType.I1)]
             private static extern bool V8Isolate_GetEnableInterruptPropagation(
@@ -1768,7 +1828,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] [MarshalAs(UnmanagedType.I1)] bool evaluate,
@@ -1781,7 +1841,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -1792,7 +1852,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1805,7 +1865,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -1813,6 +1873,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("ClearScriptV8.win-x86.dll", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Context_CompileUpdatingCache(
+                [In] V8Context.Handle hContext,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("ClearScriptV8.win-x86.dll", CallingConvention = CallingConvention.StdCall)]
             private static extern void V8Context_ExecuteScript(
                 [In] V8Context.Handle hContext,
@@ -2560,7 +2634,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Isolate_CancelAwaitDebugger(hIsolate);
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -2568,13 +2642,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -2584,7 +2658,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -2593,7 +2667,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -2603,7 +2677,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileUpdatingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Isolate_CompileUpdatingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+
+                                return hScript;
                             }
                         }
                     }
@@ -2758,7 +2855,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Context_CancelAwaitDebugger(hContext);
             }
 
-            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, bool evaluate)
+            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, bool evaluate)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -2768,7 +2865,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var resultScope = V8Value.CreateScope())
                             {
-                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
+                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
                                 return V8Value.Get(resultScope.Value);
                             }
                         }
@@ -2776,7 +2873,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -2784,13 +2881,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -2800,7 +2897,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -2809,7 +2906,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -2819,7 +2916,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileUpdatingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Context_CompileUpdatingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+                
+                                return hScript;
                             }
                         }
                     }
@@ -3633,7 +3753,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -3644,7 +3764,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -3657,7 +3777,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -3665,6 +3785,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("ClearScriptV8.win-x64.dll", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Isolate_CompileUpdatingCache(
+                [In] V8Isolate.Handle hIsolate,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("ClearScriptV8.win-x64.dll", CallingConvention = CallingConvention.StdCall)]
             [return: MarshalAs(UnmanagedType.I1)]
             private static extern bool V8Isolate_GetEnableInterruptPropagation(
@@ -3827,7 +3961,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] [MarshalAs(UnmanagedType.I1)] bool evaluate,
@@ -3840,7 +3974,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -3851,7 +3985,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -3864,7 +3998,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -3872,6 +4006,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("ClearScriptV8.win-x64.dll", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Context_CompileUpdatingCache(
+                [In] V8Context.Handle hContext,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("ClearScriptV8.win-x64.dll", CallingConvention = CallingConvention.StdCall)]
             private static extern void V8Context_ExecuteScript(
                 [In] V8Context.Handle hContext,
@@ -4619,7 +4767,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Isolate_CancelAwaitDebugger(hIsolate);
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_Compile(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -4627,13 +4775,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Isolate_Compile(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileProducingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -4643,7 +4791,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Isolate_CompileProducingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -4652,7 +4800,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileConsumingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -4662,7 +4810,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Isolate_CompileConsumingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Isolate_CompileUpdatingCache(V8Isolate.Handle hIsolate, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Isolate_CompileUpdatingCache(hIsolate, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+
+                                return hScript;
                             }
                         }
                     }
@@ -4817,7 +4988,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 V8Context_CancelAwaitDebugger(hContext);
             }
 
-            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, bool evaluate)
+            object IV8SplitProxyNative.V8Context_ExecuteCode(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, bool evaluate)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -4827,7 +4998,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var resultScope = V8Value.CreateScope())
                             {
-                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
+                                V8Context_ExecuteCode(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, evaluate, resultScope.Value);
                                 return V8Value.Get(resultScope.Value);
                             }
                         }
@@ -4835,7 +5006,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code)
+            V8Script.Handle IV8SplitProxyNative.V8Context_Compile(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -4843,13 +5014,13 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                     {
                         using (var codeScope = StdString.CreateScope(code))
                         {
-                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value);
+                            return V8Context_Compile(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value);
                         }
                     }
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileProducingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, out byte[] cacheBytes)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -4859,7 +5030,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope())
                             {
-                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
+                                var hScript = V8Context_CompileProducingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value);
                                 cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
                                 return hScript;
                             }
@@ -4868,7 +5039,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 }
             }
 
-            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, bool isModule, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileConsumingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
             {
                 using (var resourceNameScope = StdString.CreateScope(resourceName))
                 {
@@ -4878,7 +5049,30 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                         {
                             using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
                             {
-                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, isModule, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                                return V8Context_CompileConsumingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheAccepted);
+                            }
+                        }
+                    }
+                }
+            }
+
+            V8Script.Handle IV8SplitProxyNative.V8Context_CompileUpdatingCache(V8Context.Handle hContext, string resourceName, string sourceMapUrl, ulong uniqueId, DocumentKind documentKind, IntPtr pDocumentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+            {
+                using (var resourceNameScope = StdString.CreateScope(resourceName))
+                {
+                    using (var sourceMapUrlScope = StdString.CreateScope(sourceMapUrl))
+                    {
+                        using (var codeScope = StdString.CreateScope(code))
+                        {
+                            using (var cacheBytesScope = StdByteArray.CreateScope(cacheBytes))
+                            {
+                                var hScript = V8Context_CompileUpdatingCache(hContext, resourceNameScope.Value, sourceMapUrlScope.Value, uniqueId, documentKind, pDocumentInfo, codeScope.Value, cacheKind, cacheBytesScope.Value, out cacheResult);
+                                if (cacheResult == V8CacheResult.Updated)
+                                {
+                                    cacheBytes = StdByteArray.ToArray(cacheBytesScope.Value);
+                                }
+                
+                                return hScript;
                             }
                         }
                     }
@@ -5692,7 +5886,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -5703,7 +5897,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -5716,7 +5910,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -5724,6 +5918,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("ClearScriptV8.win-arm64.dll", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Isolate_CompileUpdatingCache(
+                [In] V8Isolate.Handle hIsolate,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("ClearScriptV8.win-arm64.dll", CallingConvention = CallingConvention.StdCall)]
             [return: MarshalAs(UnmanagedType.I1)]
             private static extern bool V8Isolate_GetEnableInterruptPropagation(
@@ -5886,7 +6094,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] [MarshalAs(UnmanagedType.I1)] bool evaluate,
@@ -5899,7 +6107,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode
             );
@@ -5910,7 +6118,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -5923,7 +6131,7 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [In] StdString.Ptr pResourceName,
                 [In] StdString.Ptr pSourceMapUrl,
                 [In] ulong uniqueId,
-                [In] [MarshalAs(UnmanagedType.I1)] bool isModule,
+                [In] DocumentKind documentKind,
                 [In] IntPtr pDocumentInfo,
                 [In] StdString.Ptr pCode,
                 [In] V8CacheKind cacheKind,
@@ -5931,6 +6139,20 @@ namespace Microsoft.ClearScript.V8.SplitProxy
                 [Out] [MarshalAs(UnmanagedType.I1)] out bool cacheAccepted
             );
 
+            [DllImport("ClearScriptV8.win-arm64.dll", CallingConvention = CallingConvention.StdCall)]
+            private static extern V8Script.Handle V8Context_CompileUpdatingCache(
+                [In] V8Context.Handle hContext,
+                [In] StdString.Ptr pResourceName,
+                [In] StdString.Ptr pSourceMapUrl,
+                [In] ulong uniqueId,
+                [In] DocumentKind documentKind,
+                [In] IntPtr pDocumentInfo,
+                [In] StdString.Ptr pCode,
+                [In] V8CacheKind cacheKind,
+                [In] StdByteArray.Ptr pCacheBytes,
+                [Out] out V8CacheResult cacheResult
+            );
+
             [DllImport("ClearScriptV8.win-arm64.dll", CallingConvention = CallingConvention.StdCall)]
             private static extern void V8Context_ExecuteScript(
                 [In] V8Context.Handle hContext,

ClearScript/V8/V8CacheKind.cs

@@ -10,7 +10,7 @@ namespace Microsoft.ClearScript.V8
     /// </summary>
     public enum V8CacheKind
     {
-        // IMPORTANT: maintain bitwise equivalence with unmanaged enum V8CacheType
+        // IMPORTANT: maintain bitwise equivalence with unmanaged enum V8CacheKind
 
         /// <summary>
         /// Specifies that no cache data is to be generated or consumed during V8 script

ClearScript/V8/V8CacheResult.cs

@@ -0,0 +1,44 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+namespace Microsoft.ClearScript.V8
+{
+    /// <summary>
+    /// Defines cache data processing results for V8 script compilation.
+    /// </summary>
+    public enum V8CacheResult
+    {
+        // IMPORTANT: maintain bitwise equivalence with unmanaged enum V8CacheResult
+
+        /// <summary>
+        /// Indicates that cache data processing was disabled because the caller specified
+        /// <c><see cref="V8CacheKind">V8CacheKind.None</see></c>.
+        /// </summary>
+        Disabled,
+
+        /// <summary>
+        /// Indicates that the provided cache data was accepted and used to accelerate script
+        /// compilation.
+        /// </summary>
+        Accepted,
+
+        /// <summary>
+        /// Indicates that script compilation was bypassed because a suitable compiled script was
+        /// found in the V8 runtime's memory, but the provided cache data was verified to be
+        /// correct.
+        /// </summary>
+        Verified,
+
+        /// <summary>
+        /// Indicates that the provided cache data was updated because it was empty, stale, or
+        /// invalid.
+        /// </summary>
+        Updated,
+
+        /// <summary>
+        /// Indicates that the provided cache data was empty, stale, or invalid, but new cache data
+        /// could not be generated, and no additional information was provided by the V8 runtime.
+        /// </summary>
+        UpdateFailed
+    }
+}

ClearScript/V8/V8ContextProxy.cs

@@ -38,6 +38,8 @@ namespace Microsoft.ClearScript.V8
 
         public abstract V8Script Compile(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted);
 
+        public abstract V8Script Compile(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult);
+
         public abstract object Execute(V8Script script, bool evaluate);
 
         public abstract void Interrupt();

ClearScript/V8/V8DebugAgent.cs

@@ -24,6 +24,7 @@ namespace Microsoft.ClearScript.V8
         private readonly Guid targetId = Guid.NewGuid();
         private readonly string name;
         private readonly string version;
+        private readonly int port;
         private readonly IV8DebugListener listener;
 
         private TcpListener tcpListener;
@@ -39,6 +40,7 @@ namespace Microsoft.ClearScript.V8
         {
             this.name = name;
             this.version = version;
+            this.port = port;
             this.listener = listener;
 
             var started = false;
@@ -93,6 +95,7 @@ namespace Microsoft.ClearScript.V8
             if (Interlocked.CompareExchange(ref activeClient, null, client) == client)
             {
                 listener.DisconnectClient();
+                ThreadPool.QueueUserWorkItem(_ => V8Runtime.OnDebuggerDisconnected(new V8RuntimeDebuggerEventArgs(name, port)));
             }
         }
 
@@ -266,6 +269,7 @@ namespace Microsoft.ClearScript.V8
             {
                 listener.ConnectClient();
                 client.Start();
+                ThreadPool.QueueUserWorkItem(_ => V8Runtime.OnDebuggerConnected(new V8RuntimeDebuggerEventArgs(name, port)));
                 return true;
             }
 
@@ -279,6 +283,7 @@ namespace Microsoft.ClearScript.V8
             {
                 client.Dispose(errorCode, message);
                 listener.DisconnectClient();
+                ThreadPool.QueueUserWorkItem(_ => V8Runtime.OnDebuggerDisconnected(new V8RuntimeDebuggerEventArgs(name, port)));
             }
         }
 

ClearScript/V8/V8IsolateProxy.cs

@@ -30,6 +30,8 @@ namespace Microsoft.ClearScript.V8
 
         public abstract V8Script Compile(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted);
 
+        public abstract V8Script Compile(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult);
+
         public abstract bool EnableInterruptPropagation { get; set; }
 
         public abstract bool DisableHeapSizeViolationInterrupt { get; set; }

ClearScript/V8/V8ProxyHelpers.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Runtime.InteropServices;
 using Microsoft.ClearScript.JavaScript;
 using Microsoft.ClearScript.Util;
@@ -238,9 +239,15 @@ namespace Microsoft.ClearScript.V8
             {
                 exports = null;
             }
+            else if (category == DocumentCategory.Json)
+            {
+                exports = engine.MarshalToScript(javaScriptEngine.JsonModuleManager.GetOrCreateModule(documentInfo, code).Result);
+            }
             else
             {
-                throw new InvalidOperationException("Unsupported document category");
+                var uri = document.Info.Uri;
+                var name = (uri != null) ? (uri.IsFile ? uri.LocalPath : uri.AbsoluteUri) : document.Info.Name;
+                throw new FileLoadException($"Unsupported document category '{category}'", name);
             }
 
             return code;

ClearScript/V8/V8Runtime.cs

@@ -152,6 +152,16 @@ namespace Microsoft.ClearScript.V8
 
         #region public members
 
+        /// <summary>
+        /// Occurs when a debugger connects to a V8 runtime.
+        /// </summary>
+        public static event EventHandler<V8RuntimeDebuggerEventArgs> DebuggerConnected;
+
+        /// <summary>
+        /// Occurs when a debugger disconnects from a V8 runtime.
+        /// </summary>
+        public static event EventHandler<V8RuntimeDebuggerEventArgs> DebuggerDisconnected;
+
         /// <summary>
         /// Gets the name associated with the V8 runtime instance.
         /// </summary>
@@ -537,11 +547,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="code">The script code to compile.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         /// <c><seealso cref="Compile(string, V8CacheKind, out byte[])"/></c>
         public V8Script Compile(string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
@@ -556,11 +568,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="code">The script code to compile.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         /// <c><seealso cref="Compile(string, string, V8CacheKind, out byte[])"/></c>
         public V8Script Compile(string documentName, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
@@ -575,11 +589,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="code">The script code to compile.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         /// <c><seealso cref="Compile(DocumentInfo, string, V8CacheKind, out byte[])"/></c>
         public V8Script Compile(DocumentInfo documentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
@@ -588,6 +604,63 @@ namespace Microsoft.ClearScript.V8
             return CompileInternal(documentInfo.MakeUnique(DocumentNameManager), code, cacheKind, cacheBytes, out cacheAccepted);
         }
 
+        /// <summary>
+        /// Creates a compiled script, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="code">The script code to compile.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script Compile(string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return Compile(null, code, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Creates a compiled script with an associated document name, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="documentName">A document name for the compiled script. Currently this name is used only as a label in presentation contexts such as debugger user interfaces.</param>
+        /// <param name="code">The script code to compile.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script Compile(string documentName, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return Compile(new DocumentInfo(documentName), code, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Creates a compiled script with the specified document meta-information, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="documentInfo">A structure containing meta-information for the script document.</param>
+        /// <param name="code">The script code to compile.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script Compile(DocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            VerifyNotDisposed();
+            return CompileInternal(documentInfo.MakeUnique(DocumentNameManager), code, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
         /// <summary>
         /// Loads and compiles a script document.
         /// </summary>
@@ -682,11 +755,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         public V8Script CompileDocument(string specifier, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
         {
@@ -700,11 +775,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="category">An optional category for the requested document.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         public V8Script CompileDocument(string specifier, DocumentCategory category, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
         {
@@ -719,11 +796,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="contextCallback">An optional context callback for the requested document.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         public V8Script CompileDocument(string specifier, DocumentCategory category, DocumentContextCallback contextCallback, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
         {
@@ -732,6 +811,65 @@ namespace Microsoft.ClearScript.V8
             return Compile(document.Info, document.GetTextContents(), cacheKind, cacheBytes, out cacheAccepted);
         }
 
+        /// <summary>
+        /// Loads and compiles a script document, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script CompileDocument(string specifier, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return CompileDocument(specifier, null, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Loads and compiles a document with the specified category, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
+        /// <param name="category">An optional category for the requested document.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script CompileDocument(string specifier, DocumentCategory category, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return CompileDocument(specifier, category, null, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Loads and compiles a document with the specified category and context callback, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
+        /// <param name="category">An optional category for the requested document.</param>
+        /// <param name="contextCallback">An optional context callback for the requested document.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script CompileDocument(string specifier, DocumentCategory category, DocumentContextCallback contextCallback, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            MiscHelpers.VerifyNonBlankArgument(specifier, nameof(specifier), "Invalid document specifier");
+            var document = DocumentSettings.LoadDocument(null, specifier, category, contextCallback);
+            return Compile(document.Info, document.GetTextContents(), cacheKind, ref cacheBytes, out cacheResult);
+        }
+
         /// <summary>
         /// Returns memory usage information.
         /// </summary>
@@ -851,6 +989,16 @@ namespace Microsoft.ClearScript.V8
 
         internal readonly HostItemCollateral HostItemCollateral = new HostItemCollateral();
 
+        internal static void OnDebuggerConnected(V8RuntimeDebuggerEventArgs args)
+        {
+            DebuggerConnected?.Invoke(null, args);
+        }
+
+        internal static void OnDebuggerDisconnected(V8RuntimeDebuggerEventArgs args)
+        {
+            DebuggerDisconnected?.Invoke(null, args);
+        }
+
         internal V8IsolateProxy IsolateProxy
         {
             get
@@ -885,6 +1033,10 @@ namespace Microsoft.ClearScript.V8
             {
                 code = CommonJSManager.Module.GetAugmentedCode(code);
             }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The V8 runtime cannot compile documents of type '" + documentInfo.Category + "'");
+            }
 
             return proxy.Compile(documentInfo, code);
         }
@@ -900,6 +1052,10 @@ namespace Microsoft.ClearScript.V8
             {
                 code = CommonJSManager.Module.GetAugmentedCode(code);
             }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The V8 runtime cannot compile documents of type '" + documentInfo.Category + "'");
+            }
 
             return proxy.Compile(documentInfo, code, cacheKind, out cacheBytes);
         }
@@ -915,10 +1071,33 @@ namespace Microsoft.ClearScript.V8
             {
                 code = CommonJSManager.Module.GetAugmentedCode(code);
             }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The V8 runtime cannot compile documents of type '" + documentInfo.Category + "'");
+            }
 
             return proxy.Compile(documentInfo, code, cacheKind, cacheBytes, out cacheAccepted);
         }
 
+        private V8Script CompileInternal(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            if (FormatCode)
+            {
+                code = MiscHelpers.FormatCode(code);
+            }
+
+            if (documentInfo.Category == ModuleCategory.CommonJS)
+            {
+                code = CommonJSManager.Module.GetAugmentedCode(code);
+            }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The V8 runtime cannot compile documents of type '" + documentInfo.Category + "'");
+            }
+
+            return proxy.Compile(documentInfo, code, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
         #endregion
 
         #region IDisposable implementation

ClearScript/V8/V8RuntimeDebuggerEventArgs.cs

@@ -0,0 +1,29 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+using System;
+
+namespace Microsoft.ClearScript.V8
+{
+    /// <summary>
+    /// Provides data for debugger events associated with V8 runtimes.
+    /// </summary>
+    public sealed class V8RuntimeDebuggerEventArgs : EventArgs
+    {
+        /// <summary>
+        /// Gets the name associated with the V8 runtime instance.
+        /// </summary>
+        public string Name { get; }
+
+        /// <summary>
+        /// Gets the TCP port of the debugger connection.
+        /// </summary>
+        public int Port { get; }
+
+        internal V8RuntimeDebuggerEventArgs(string name, int port)
+        {
+            Name = name;
+            Port = port;
+        }
+    }
+}

ClearScript/V8/V8ScriptEngine.InitScript.cs

@@ -9,6 +9,6 @@ namespace Microsoft.ClearScript.V8
 {
     public sealed partial class V8ScriptEngine
     {
-        private const string initScript = "Object.defineProperty(this,'EngineInternal',{value:(t=>{let e=t=>t.bind();function r(){return new this(...arguments)}let o=t.isHostObjectKey;delete t.isHostObjectKey;let n=t=>!!t&&!0===t[o],c=Promise,i=Symbol(),a=t.toJson;return delete t.toJson,Object.freeze({commandHolder:{},getCommandResult:e(t=>null==t?t:'function'!=typeof t.hasOwnProperty?'Module'===t[Symbol.toStringTag]?'[module]':'[external]':!0===t[o]?t:'function'!=typeof t.toString?'['+typeof t+']':t.toString()),strictEquals:e((t,e)=>t===e),invokeConstructor:e((t,e)=>{if('function'!=typeof t)throw Error('Function expected');return r.apply(t,Array.from(e))}),invokeMethod:e((t,e,r)=>{if('function'!=typeof e)throw Error('Function expected');return e.apply(t,Array.from(r))}),createPromise:e(function(){return new c(...arguments)}),isPromise:e(t=>t instanceof c),isHostObject:e(n),completePromiseWithResult:e((t,e,r)=>{try{e(t())}catch(o){r(o)}}),completePromise:e((t,e,r)=>{try{t(),e()}catch(o){r(o)}}),throwValue:e(t=>{throw t}),getStackTrace:e(()=>{try{throw Error('[stack trace]')}catch(t){return t.stack}}),toIterator:e(function*(t){try{for(;t.ScriptableMoveNext();)yield t.ScriptableCurrent}finally{t.ScriptableDispose()}}),toAsyncIterator:e(async function*(t){try{for(;await t.ScriptableMoveNextAsync();)yield t.ScriptableCurrent}finally{await t.ScriptableDisposeAsync()}}),getIterator:e(t=>t?.[Symbol.iterator]?.()),getAsyncIterator:e(t=>t?.[Symbol.asyncIterator]?.()),checkpoint:e(()=>{let e=t[i];if(e)throw e}),toJson:e((t,e)=>a?JSON.parse(a(t,e)):e),asyncGenerator:async function*(){}().constructor})})(this)});";
+        private const string initScript = "Object.defineProperty(this,'EngineInternal',{value:(t=>{let e=t=>t.bind();function r(){return new this(...arguments)}let o=t.isHostObjectKey;delete t.isHostObjectKey;let n=t=>!!t&&!0===t[o],c=Promise,i=JSON,a=Symbol(),s=t.toJson;return delete t.toJson,Object.freeze({commandHolder:{},getCommandResult:e(t=>null==t?t:'function'!=typeof t.hasOwnProperty?'Module'===t[Symbol.toStringTag]?'[module]':'[external]':!0===t[o]?t:'function'!=typeof t.toString?'['+typeof t+']':t.toString()),strictEquals:e((t,e)=>t===e),invokeConstructor:e((t,e)=>{if('function'!=typeof t)throw Error('Function expected');return r.apply(t,Array.from(e))}),invokeMethod:e((t,e,r)=>{if('function'!=typeof e)throw Error('Function expected');return e.apply(t,Array.from(r))}),createPromise:e(function(){return new c(...arguments)}),isPromise:e(t=>t instanceof c),isHostObject:e(n),completePromiseWithResult:e((t,e,r)=>{try{e(t())}catch(o){r(o)}}),completePromise:e((t,e,r)=>{try{t(),e()}catch(o){r(o)}}),throwValue:e(t=>{throw t}),getStackTrace:e(()=>{try{throw Error('[stack trace]')}catch(t){return t.stack}}),toIterator:e(function*(t){try{for(;t.ScriptableMoveNext();)yield t.ScriptableCurrent}finally{t.ScriptableDispose()}}),toAsyncIterator:e(async function*(t){try{for(;await t.ScriptableMoveNextAsync();)yield t.ScriptableCurrent}finally{await t.ScriptableDisposeAsync()}}),getIterator:e(t=>t?.[Symbol.iterator]?.()),getAsyncIterator:e(t=>t?.[Symbol.asyncIterator]?.()),checkpoint:e(()=>{let e=t[a];if(e)throw e}),toJson:e((t,e)=>s?i.parse(s(t,e)):e),parseJson:e(t=>i.parse(t)),asyncGenerator:async function*(){}().constructor})})(this)});";
     }
 }

ClearScript/V8/V8ScriptEngine.InitScript.js

@@ -14,6 +14,7 @@ Object.defineProperty(this, 'EngineInternal', { value: (globalObject => {
     const isHostObject = value => !!value && (value[isHostObjectKey] === true);
 
     const savedPromise = Promise;
+    const savedJSON = JSON;
     const checkpointSymbol = Symbol();
 
     const toJson = globalObject.toJson;
@@ -133,7 +134,9 @@ Object.defineProperty(this, 'EngineInternal', { value: (globalObject => {
             }
         }),
 
-        toJson: bind((key, value) => toJson ? JSON.parse(toJson(key, value)) : value),
+        toJson: bind((key, value) => toJson ? savedJSON.parse(toJson(key, value)) : value),
+
+        parseJson: bind(json => savedJSON.parse(json)),
 
         asyncGenerator: (async function* () {})().constructor
 

ClearScript/V8/V8ScriptEngine.cs

@@ -51,6 +51,7 @@ namespace Microsoft.ClearScript.V8
         private bool suppressExtensionMethodEnumeration;
 
         private CommonJSManager commonJSManager;
+        private JsonModuleManager jsonDocumentManager;
 
         #endregion
 
@@ -560,11 +561,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="code">The script code to compile.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed multiple times without recompilation.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         /// <c><seealso cref="Compile(string, V8CacheKind, out byte[])"/></c>
         public V8Script Compile(string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
@@ -579,11 +582,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="code">The script code to compile.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed multiple times without recompilation.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         /// <c><seealso cref="Compile(string, string, V8CacheKind, out byte[])"/></c>
         public V8Script Compile(string documentName, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
@@ -598,11 +603,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="code">The script code to compile.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed multiple times without recompilation.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         /// <c><seealso cref="Compile(DocumentInfo, string, V8CacheKind, out byte[])"/></c>
         public V8Script Compile(DocumentInfo documentInfo, string code, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
@@ -619,6 +626,77 @@ namespace Microsoft.ClearScript.V8
             return tempScript;
         }
 
+        /// <summary>
+        /// Creates a compiled script, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="code">The script code to compile.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed multiple times without recompilation.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script Compile(string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return Compile(null, code, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Creates a compiled script with an associated document name, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="documentName">A document name for the compiled script. Currently this name is used only as a label in presentation contexts such as debugger user interfaces.</param>
+        /// <param name="code">The script code to compile.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed multiple times without recompilation.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script Compile(string documentName, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return Compile(new DocumentInfo(documentName), code, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Creates a compiled script with the specified document meta-information, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="documentInfo">A structure containing meta-information for the script document.</param>
+        /// <param name="code">The script code to compile.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed multiple times without recompilation.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script Compile(DocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            VerifyNotDisposed();
+
+            V8Script tempScript = null;
+            var tempCacheBytes = cacheBytes;
+            cacheResult = ScriptInvoke(() =>
+            {
+                tempScript = CompileInternal(documentInfo.MakeUnique(this), code, cacheKind, ref tempCacheBytes, out var tempCacheUpdated);
+                return tempCacheUpdated;
+            });
+
+            if (cacheResult == V8CacheResult.Updated)
+            {
+                cacheBytes = tempCacheBytes;
+            }
+
+            return tempScript;
+        }
+
         /// <summary>
         /// Loads and compiles a script document.
         /// </summary>
@@ -713,11 +791,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         public V8Script CompileDocument(string specifier, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
         {
@@ -731,11 +811,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="category">An optional category for the requested document.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         public V8Script CompileDocument(string specifier, DocumentCategory category, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
         {
@@ -750,11 +832,13 @@ namespace Microsoft.ClearScript.V8
         /// <param name="contextCallback">An optional context callback for the requested document.</param>
         /// <param name="cacheKind">The kind of cache data to be consumed.</param>
         /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
-        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted, <c>false</c> otherwise.</param>
+        /// <param name="cacheAccepted"><c>True</c> if <paramref name="cacheBytes"/> was accepted and used to accelerate script compilation, <c>false</c> otherwise.</param>
         /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
         /// <remarks>
         /// To be accepted, the cache data must have been generated for identical script code by
-        /// the same V8 build.
+        /// the same V8 build. Note that script compilation may be bypassed if a suitable compiled
+        /// script already exists in the V8 runtime's memory. In that case, the cache data is
+        /// ignored and <paramref name="cacheAccepted"/> is set to <c>false</c>.
         /// </remarks>
         public V8Script CompileDocument(string specifier, DocumentCategory category, DocumentContextCallback contextCallback, V8CacheKind cacheKind, byte[] cacheBytes, out bool cacheAccepted)
         {
@@ -763,6 +847,65 @@ namespace Microsoft.ClearScript.V8
             return Compile(document.Info, document.GetTextContents(), cacheKind, cacheBytes, out cacheAccepted);
         }
 
+        /// <summary>
+        /// Loads and compiles a script document, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script CompileDocument(string specifier, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return CompileDocument(specifier, null, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Loads and compiles a document with the specified category, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
+        /// <param name="category">An optional category for the requested document.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script CompileDocument(string specifier, DocumentCategory category, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            return CompileDocument(specifier, category, null, cacheKind, ref cacheBytes, out cacheResult);
+        }
+
+        /// <summary>
+        /// Loads and compiles a document with the specified category and context callback, consuming previously generated cache data and updating it if necessary.
+        /// </summary>
+        /// <param name="specifier">A string specifying the document to be loaded and compiled.</param>
+        /// <param name="category">An optional category for the requested document.</param>
+        /// <param name="contextCallback">An optional context callback for the requested document.</param>
+        /// <param name="cacheKind">The kind of cache data to be processed.</param>
+        /// <param name="cacheBytes">Cache data for accelerated compilation.</param>
+        /// <param name="cacheResult">The cache data processing result for the operation.</param>
+        /// <returns>A compiled script that can be executed by multiple V8 script engine instances.</returns>
+        /// <remarks>
+        /// To be accepted, the cache data must have been generated for identical script code by
+        /// the same V8 build. If returned, the updated cache data can be stored externally and is
+        /// usable in other V8 script engines and application processes.
+        /// </remarks>
+        public V8Script CompileDocument(string specifier, DocumentCategory category, DocumentContextCallback contextCallback, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            MiscHelpers.VerifyNonBlankArgument(specifier, nameof(specifier), "Invalid document specifier");
+            var document = DocumentSettings.LoadDocument(null, specifier, category, contextCallback);
+            return Compile(document.Info, document.GetTextContents(), cacheKind, ref cacheBytes, out cacheResult);
+        }
+
         // ReSharper disable ParameterHidesMember
 
         /// <summary>
@@ -945,6 +1088,8 @@ namespace Microsoft.ClearScript.V8
 
         internal CommonJSManager CommonJSManager => commonJSManager ?? (commonJSManager = new CommonJSManager(this));
 
+        internal JsonModuleManager JsonModuleManager => jsonDocumentManager ?? (jsonDocumentManager = new JsonModuleManager(this));
+
         private object GetRootItem()
         {
             return MarshalToHost(ScriptInvoke(() => proxy.GetRootItem()), false);
@@ -1015,6 +1160,10 @@ namespace Microsoft.ClearScript.V8
                 module = CommonJSManager.GetOrCreateModule(documentInfo, code);
                 code = CommonJSManager.Module.GetAugmentedCode(code);
             }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The script engine cannot compile documents of type '" + documentInfo.Category + "'");
+            }
 
             // ReSharper disable once LocalVariableHidesMember
             var script = proxy.Compile(documentInfo, code);
@@ -1040,6 +1189,10 @@ namespace Microsoft.ClearScript.V8
                 module = CommonJSManager.GetOrCreateModule(documentInfo, code);
                 code = CommonJSManager.Module.GetAugmentedCode(code);
             }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The script engine cannot compile documents of type '" + documentInfo.Category + "'");
+            }
 
             // ReSharper disable once LocalVariableHidesMember
             var script = proxy.Compile(documentInfo, code, cacheKind, out cacheBytes);
@@ -1065,6 +1218,10 @@ namespace Microsoft.ClearScript.V8
                 module = CommonJSManager.GetOrCreateModule(documentInfo, code);
                 code = CommonJSManager.Module.GetAugmentedCode(code);
             }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The script engine cannot compile documents of type '" + documentInfo.Category + "'");
+            }
 
             // ReSharper disable once LocalVariableHidesMember
             var script = proxy.Compile(documentInfo, code, cacheKind, cacheBytes, out cacheAccepted);
@@ -1077,6 +1234,35 @@ namespace Microsoft.ClearScript.V8
             return script;
         }
 
+        private V8Script CompileInternal(UniqueDocumentInfo documentInfo, string code, V8CacheKind cacheKind, ref byte[] cacheBytes, out V8CacheResult cacheResult)
+        {
+            if (FormatCode)
+            {
+                code = MiscHelpers.FormatCode(code);
+            }
+
+            CommonJSManager.Module module = null;
+            if (documentInfo.Category == ModuleCategory.CommonJS)
+            {
+                module = CommonJSManager.GetOrCreateModule(documentInfo, code);
+                code = CommonJSManager.Module.GetAugmentedCode(code);
+            }
+            else if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The script engine cannot compile documents of type '" + documentInfo.Category + "'");
+            }
+
+            // ReSharper disable once LocalVariableHidesMember
+            var script = proxy.Compile(documentInfo, code, cacheKind, ref cacheBytes, out cacheResult);
+
+            if (module != null)
+            {
+                module.Evaluator = () => proxy.Execute(script, true);
+            }
+
+            return script;
+        }
+
         private object ExecuteInternal(UniqueDocumentInfo documentInfo, string code, bool evaluate)
         {
             if (FormatCode)
@@ -1090,6 +1276,11 @@ namespace Microsoft.ClearScript.V8
                 return module.Process();
             }
 
+            if ((documentInfo.Category != DocumentCategory.Script) && (documentInfo.Category != ModuleCategory.Standard))
+            {
+                throw new NotSupportedException("The script engine cannot execute documents of type '" + documentInfo.Category + "'");
+            }
+
             return ExecuteRaw(documentInfo, code, evaluate);
         }
 
@@ -1597,6 +1788,8 @@ namespace Microsoft.ClearScript.V8
 
         CommonJSManager IJavaScriptEngine.CommonJSManager => CommonJSManager;
 
+        JsonModuleManager IJavaScriptEngine.JsonModuleManager => JsonModuleManager;
+
         object IJavaScriptEngine.CreatePromiseForTask<T>(Task<T> task)
         {
             return CreatePromise((resolve, reject) =>

ClearScript/Windows/Core/ActiveXDebugging.cs

@@ -720,6 +720,8 @@ namespace Microsoft.ClearScript.Windows.Core
 
         #region IDebugDocument methods
 
+        // inherited methods only
+
         #endregion
 
         void GetDocumentAttributes(

ClearScript/Windows/Core/JScriptEngine.InitScript.cs

@@ -9,6 +9,6 @@ namespace Microsoft.ClearScript.Windows.Core
 {
     public partial class JScriptEngine
     {
-        internal const string InitScript = "EngineInternal=function(){var t=this;function n(t){var n=[];if(t.GetValue)for(var o=t.Length,e=0;e<o;e++)n.push(t[e]);else for(var o=(t=new VBArray(t)).ubound(1)+1,e=0;e<o;e++)n.push(t.getItem(e));return n}function o(t,n,o,e,u,r,i,f,c,p,s,h,a,l,y,v){return new this(t,n,o,e,u,r,i,f,c,p,s,h,a,l,y,v)}return{getCommandResult:function(t){return null!==t&&('object'==typeof t||'function'==typeof t)&&'function'==typeof t.toString?t.toString():t},invokeConstructor:function(t,e){if('function'!=typeof t)throw Error('Function expected');return o.apply(t,n(e))},invokeMethod:function(t,o,e){if('function'!=typeof o)throw Error('Function expected');return o.apply(t,n(e))},isPromise:function(t){return!1},isHostObject:function(n){return!!n&&'function'!=typeof n.constructor&&n!==t},throwValue:function(t){throw t}}}();";
+        internal const string InitScript = "EngineInternal=function(){var globalObject=this;function convertArgs(t){var n=[];if(t.GetValue)for(var o=t.Length,e=0;e<o;e++)n.push(t[e]);else for(var o=(t=new VBArray(t)).ubound(1)+1,e=0;e<o;e++)n.push(t.getItem(e));return n}function construct(t,n,o,e,r,u,i,f,c,p,s,a,h,l,y,v){return new this(t,n,o,e,r,u,i,f,c,p,s,a,h,l,y,v)}var savedJSON=globalObject.JSON;return{getCommandResult:function(t){return null!==t&&('object'==typeof t||'function'==typeof t)&&'function'==typeof t.toString?t.toString():t},invokeConstructor:function(t,n){if('function'!=typeof t)throw Error('Function expected');return construct.apply(t,convertArgs(n))},invokeMethod:function(t,n,o){if('function'!=typeof n)throw Error('Function expected');return n.apply(t,convertArgs(o))},isPromise:function(t){return!1},isHostObject:function(t){return!!t&&'function'!=typeof t.constructor&&t!==globalObject},throwValue:function(t){throw t},parseJson:function(json){return savedJSON?savedJSON.parse(json):eval('('+json+')')}}}();";
     }
 }

ClearScript/Windows/Core/JScriptEngine.InitScript.js

@@ -27,6 +27,8 @@ EngineInternal = (function () {
         return new this(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15);
     }
 
+    var savedJSON = globalObject.JSON;
+
     return {
 
         getCommandResult: function (value) {
@@ -64,6 +66,10 @@ EngineInternal = (function () {
 
         throwValue: function (value) {
             throw value;
+        },
+
+        parseJson: function (json) {
+            return savedJSON ? savedJSON.parse(json) : eval('(' + json + ')');
         }
     };
 })();

ClearScript/Windows/Core/JScriptEngine.cs

@@ -97,6 +97,7 @@ namespace Microsoft.ClearScript.Windows.Core
         };
 
         private CommonJSManager commonJSManager;
+        private JsonModuleManager jsonDocumentManager;
 
         #endregion
 
@@ -170,6 +171,8 @@ namespace Microsoft.ClearScript.Windows.Core
 
         internal CommonJSManager CommonJSManager => commonJSManager ?? (commonJSManager = new CommonJSManager(this));
 
+        internal JsonModuleManager JsonModuleManager => jsonDocumentManager ?? (jsonDocumentManager = new JsonModuleManager(this));
+
         #endregion
 
         #region ScriptEngine overrides
@@ -240,6 +243,8 @@ namespace Microsoft.ClearScript.Windows.Core
 
         CommonJSManager IJavaScriptEngine.CommonJSManager => CommonJSManager;
 
+        JsonModuleManager IJavaScriptEngine.JsonModuleManager => JsonModuleManager;
+
         object IJavaScriptEngine.CreatePromiseForTask<T>(Task<T> task)
         {
             throw new NotImplementedException();

ClearScript/Windows/Core/WindowsScriptEngine.Debug.cs

@@ -129,6 +129,8 @@ namespace Microsoft.ClearScript.Windows.Core
 
             #region IDebugDocument implementation
 
+            // inherited methods only
+
             #endregion
 
             #region IDebugDocumentText implementation

ClearScript/Windows/JScriptEngine.cs

@@ -25,6 +25,7 @@ namespace Microsoft.ClearScript.Windows
         #region data
 
         private CommonJSManager commonJSManager;
+        private JsonModuleManager jsonDocumentManager;
 
         #endregion
 
@@ -90,6 +91,8 @@ namespace Microsoft.ClearScript.Windows
 
         internal CommonJSManager CommonJSManager => commonJSManager ?? (commonJSManager = new CommonJSManager(this));
 
+        internal JsonModuleManager JsonModuleManager => jsonDocumentManager ?? (jsonDocumentManager = new JsonModuleManager(this));
+
         #endregion
 
         #region ScriptEngine overrides
@@ -160,6 +163,8 @@ namespace Microsoft.ClearScript.Windows
 
         CommonJSManager IJavaScriptEngine.CommonJSManager => CommonJSManager;
 
+        JsonModuleManager IJavaScriptEngine.JsonModuleManager => JsonModuleManager;
+
         object IJavaScriptEngine.CreatePromiseForTask<T>(Task<T> task)
         {
             throw new NotImplementedException();

ClearScript/doc/Reference.shfbproj

@@ -68,6 +68,7 @@
         </configuration>
       </PlugInConfig>
     </PlugInConfigurations>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
   </PropertyGroup>
   <!-- There are no properties for these groups.  AnyCPU needs to appear in
        order for Visual Studio to perform the build.  The others are optional

ClearScript/doc/WebReference.shfbproj

@@ -71,6 +71,7 @@
     </PlugInConfigurations>
     <PostBuildEvent>copy "$(OutputPath)..\favicon.ico" "$(OutputPath)icons"</PostBuildEvent>
     <RunPostBuildEvent>OnBuildSuccess</RunPostBuildEvent>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
   </PropertyGroup>
   <!-- There are no properties for these groups.  AnyCPU needs to appear in
        order for Visual Studio to perform the build.  The others are optional

ClearScriptBenchmarks/Properties/AssemblyInfo.cs

@@ -11,6 +11,6 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyCopyright("(c) Microsoft Corporation")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]

ClearScriptConsole/Properties/AssemblyInfo.cs

@@ -11,6 +11,6 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyCopyright("(c) Microsoft Corporation")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]

ClearScriptTest/BugFixTest.cs

@@ -1,6 +1,11 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
+using Microsoft.ClearScript.Util;
+using Microsoft.ClearScript.V8;
+using Microsoft.CSharp.RuntimeBinder;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Newtonsoft.Json;
 using System;
 using System.Collections;
 using System.Collections.Generic;
@@ -17,11 +22,6 @@ using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Xml.Linq;
-using Microsoft.ClearScript.V8;
-using Microsoft.ClearScript.Util;
-using Microsoft.CSharp.RuntimeBinder;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
-using Newtonsoft.Json;
 
 namespace Microsoft.ClearScript.Test
 {
@@ -1753,6 +1753,46 @@ namespace Microsoft.ClearScript.Test
             engine.Execute("Array.from(test.Values)");
         }
 
+        [TestMethod, TestCategory("BugFix")]
+        public void BugFix_V8HostPropertyEnumeration()
+        {
+            var foo = new PropertyBag { { "foo", 123 }, { "bar", "baz" } };
+
+            engine.Script.foo = foo;
+            engine.Execute(@"
+                var keys = [];
+                for (let key in foo) {
+                    keys.push(key);
+                }
+            ");
+
+            Assert.AreEqual(foo.Keys.Count, engine.Script.keys.length);
+            Assert.IsTrue(foo.Keys.All(key => engine.Script.keys.includes(key)));
+        }
+
+        [TestMethod, TestCategory("BugFix")]
+        public void BugFix_AnonymousTypeMemberEnumeration()
+        {
+            var foo = new { foo = 123, bar = "baz" };
+            ((V8ScriptEngine)engine).SuppressInstanceMethodEnumeration = true;
+
+            Assert.AreEqual(2, engine.Script.Object.keys(foo).length);
+            Assert.IsTrue(new[] { "foo", "bar" }.All(key => engine.Script.Object.keys(foo).includes(key)));
+        }
+
+        [TestMethod, TestCategory("BugFix")]
+        public void BugFix_AnonymousTypeMemberEnumeration_VB()
+        {
+            TestUtil.InvokeVBTestSub(@"
+                Using engine As New V8ScriptEngine
+                    engine.Script.foo = New With {.foo = 123, .bar = ""baz""}
+                    engine.SuppressInstanceMethodEnumeration = True
+                    Assert.AreEqual(2, engine.Evaluate(""Object.keys(foo).length""))
+                    Assert.IsTrue((New String() {""foo"", ""bar""}).All(Function (key) engine.Evaluate(""Object.keys(foo).includes('"" & key & ""')"")))
+                End Using
+            ");
+        }
+
     #if NET6_0_OR_GREATER
 
         [TestMethod, TestCategory("BugFix")]

ClearScriptTest/JScriptCoreModuleTest.cs

@@ -1,10 +1,11 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
+using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.ClearScript.JavaScript;
 using Microsoft.ClearScript.Windows.Core;
@@ -314,6 +315,128 @@ namespace Microsoft.ClearScript.Test
             "));
         }
 
+        [TestMethod, TestCategory("JScriptCoreModule")]
+        public void JScriptCoreModule_CommonJS_Json_Object()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            var result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Object.json')");
+            Assert.AreEqual(2, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.DocumentSettings.AddSystemDocument("ObjectWithFunction.json", DocumentCategory.Json, "{ \"foo\": 123, \"bar\": \"baz\", \"qux\": function(){} }");
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ObjectWithFunction.json')");
+            Assert.AreEqual(3, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.Dispose();
+            engine = new JScriptEngine(Windows.WindowsScriptEngineFlags.EnableDebugging | Windows.WindowsScriptEngineFlags.EnableStandardsMode, NullSyncInvoker.Instance);
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Object.json')");
+            Assert.AreEqual(2, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.DocumentSettings.AddSystemDocument("ObjectWithFunction.json", DocumentCategory.Json, "{ \"foo\": 123, \"bar\": \"baz\", \"qux\": function(){} }");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ObjectWithFunction.json')"));
+        }
+
+        [TestMethod, TestCategory("JScriptCoreModule")]
+        public void JScriptCoreModule_CommonJS_Json_Array()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            var result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Array.json')");
+            Assert.AreEqual(4, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.DocumentSettings.AddSystemDocument("ArrayWithFunction.json", DocumentCategory.Json, "[ 123, \"foo\", 4.56, \"bar\", function(){} ]");
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ArrayWithFunction.json')");
+            Assert.AreEqual(5, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.Dispose();
+            engine = new JScriptEngine(Windows.WindowsScriptEngineFlags.EnableDebugging | Windows.WindowsScriptEngineFlags.EnableStandardsMode, NullSyncInvoker.Instance);
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Array.json')");
+            Assert.AreEqual(4, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.DocumentSettings.AddSystemDocument("ArrayWithFunction.json", DocumentCategory.Json, "[ 123, \"foo\", 4.56, \"bar\", function(){} ]");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ArrayWithFunction.json')"));
+        }
+
+
+        [TestMethod, TestCategory("JScriptCoreModule")]
+        public void JScriptCoreModule_CommonJS_Json_Malformed()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            // ReSharper disable once AccessToDisposedClosure
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Malformed.json')"));
+
+            engine.Dispose();
+            engine = new JScriptEngine(Windows.WindowsScriptEngineFlags.EnableDebugging | Windows.WindowsScriptEngineFlags.EnableStandardsMode, NullSyncInvoker.Instance);
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Malformed.json')"));
+        }
+
         // ReSharper restore InconsistentNaming
 
         #endregion

ClearScriptTest/JScriptModuleTest.cs

@@ -1,10 +1,11 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
+using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.ClearScript.JavaScript;
 using Microsoft.ClearScript.Windows;
@@ -314,6 +315,128 @@ namespace Microsoft.ClearScript.Test
             "));
         }
 
+        [TestMethod, TestCategory("JScriptModule")]
+        public void JScriptModule_CommonJS_Json_Object()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            var result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Object.json')");
+            Assert.AreEqual(2, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.DocumentSettings.AddSystemDocument("ObjectWithFunction.json", DocumentCategory.Json, "{ \"foo\": 123, \"bar\": \"baz\", \"qux\": function(){} }");
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ObjectWithFunction.json')");
+            Assert.AreEqual(3, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.Dispose();
+            engine = new JScriptEngine(WindowsScriptEngineFlags.EnableDebugging | WindowsScriptEngineFlags.EnableStandardsMode);
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Object.json')");
+            Assert.AreEqual(2, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.DocumentSettings.AddSystemDocument("ObjectWithFunction.json", DocumentCategory.Json, "{ \"foo\": 123, \"bar\": \"baz\", \"qux\": function(){} }");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ObjectWithFunction.json')"));
+        }
+
+        [TestMethod, TestCategory("JScriptModule")]
+        public void JScriptModule_CommonJS_Json_Array()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            var result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Array.json')");
+            Assert.AreEqual(4, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.DocumentSettings.AddSystemDocument("ArrayWithFunction.json", DocumentCategory.Json, "[ 123, \"foo\", 4.56, \"bar\", function(){} ]");
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ArrayWithFunction.json')");
+            Assert.AreEqual(5, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.Dispose();
+            engine = new JScriptEngine(WindowsScriptEngineFlags.EnableDebugging | WindowsScriptEngineFlags.EnableStandardsMode);
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Array.json')");
+            Assert.AreEqual(4, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.DocumentSettings.AddSystemDocument("ArrayWithFunction.json", DocumentCategory.Json, "[ 123, \"foo\", 4.56, \"bar\", function(){} ]");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ArrayWithFunction.json')"));
+        }
+
+
+        [TestMethod, TestCategory("JScriptModule")]
+        public void JScriptModule_CommonJS_Json_Malformed()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            // ReSharper disable once AccessToDisposedClosure
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Malformed.json')"));
+
+            engine.Dispose();
+            engine = new JScriptEngine(WindowsScriptEngineFlags.EnableDebugging | WindowsScriptEngineFlags.EnableStandardsMode);
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Malformed.json')"));
+        }
+
         // ReSharper restore InconsistentNaming
 
         #endregion

ClearScriptTest/JavaScript/Array.json

@@ -0,0 +1 @@
+[ 123, "foo", 4.56, "bar" ]

ClearScriptTest/JavaScript/Malformed.json

@@ -0,0 +1 @@
+This is not JSON!

ClearScriptTest/JavaScript/Object.json

@@ -0,0 +1 @@
+{ "foo": 123, "bar": "baz" }

ClearScriptTest/Properties/AssemblyInfo.cs

@@ -11,6 +11,6 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyCopyright("(c) Microsoft Corporation")]
 
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("7.4.2")]
-[assembly: AssemblyFileVersion("7.4.2")]
-[assembly: AssemblyInformationalVersion("7.4.2")]
+[assembly: AssemblyVersion("7.4.3")]
+[assembly: AssemblyFileVersion("7.4.3")]
+[assembly: AssemblyInformationalVersion("7.4.3")]

ClearScriptTest/V8ModuleTest.cs

@@ -844,6 +844,68 @@ namespace Microsoft.ClearScript.Test
             Assert.AreEqual(engine.Script.Rectangle2, engine.Script.Rectangle3);
         }
 
+        [TestMethod, TestCategory("V8Module")]
+        public void V8Module_Standard_Json_Object()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            engine.Execute(new DocumentInfo { Category = ModuleCategory.Standard }, "import result from 'JavaScript/Object.json'; globalThis.result = result;");
+            var result = (ScriptObject)engine.Global.GetProperty("result");
+            Assert.AreEqual(2, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.DocumentSettings.AddSystemDocument("ObjectWithFunction.json", DocumentCategory.Json, "{ \"foo\": 123, \"bar\": \"baz\", \"qux\": function(){} }");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Execute(new DocumentInfo { Category = ModuleCategory.Standard }, "import result from 'ObjectWithFunction.json'; globalThis.result = result;"));
+        }
+
+        [TestMethod, TestCategory("V8Module")]
+        public void V8Module_Standard_Json_Array()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            engine.Execute(new DocumentInfo { Category = ModuleCategory.Standard }, "import result from 'JavaScript/Array.json'; globalThis.result = result;");
+            var result = (ScriptObject)engine.Global.GetProperty("result");
+            Assert.AreEqual(4, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.DocumentSettings.AddSystemDocument("ArrayWithFunction.json", DocumentCategory.Json, "[ 123, \"foo\", 4.56, \"bar\", function(){} ]");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Execute(new DocumentInfo { Category = ModuleCategory.Standard }, "import result from 'ArrayWithFunction.json'; globalThis.result = result;"));
+        }
+
+        [TestMethod, TestCategory("V8Module")]
+        public void V8Module_Standard_Json_Malformed()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            // ReSharper disable once AccessToDisposedClosure
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Execute(new DocumentInfo { Category = ModuleCategory.Standard }, "import result from 'JavaScript/Malformed.json'; globalThis.result = result;"));
+        }
+
         [TestMethod, TestCategory("V8Module")]
         public void V8Module_CommonJS_File()
         {
@@ -1291,6 +1353,67 @@ namespace Microsoft.ClearScript.Test
             "));
         }
 
+        [TestMethod, TestCategory("V8Module")]
+        public void V8Module_CommonJS_Json_Object()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            var result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Object.json')");
+            Assert.AreEqual(2, result.PropertyNames.Count());
+            Assert.AreEqual(123, result.GetProperty("foo"));
+            Assert.AreEqual("baz", result.GetProperty("bar"));
+
+            engine.DocumentSettings.AddSystemDocument("ObjectWithFunction.json", DocumentCategory.Json, "{ \"foo\": 123, \"bar\": \"baz\", \"qux\": function(){} }");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ObjectWithFunction.json')"));
+        }
+
+        [TestMethod, TestCategory("V8Module")]
+        public void V8Module_CommonJS_Json_Array()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            var result = (ScriptObject)engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Array.json')");
+            Assert.AreEqual(4, result.PropertyIndices.Count());
+            Assert.AreEqual(123, result.GetProperty(0));
+            Assert.AreEqual("foo", result.GetProperty(1));
+            Assert.AreEqual(4.56, result.GetProperty(2));
+            Assert.AreEqual("bar", result.GetProperty(3));
+
+            engine.DocumentSettings.AddSystemDocument("ArrayWithFunction.json", DocumentCategory.Json, "[ 123, \"foo\", 4.56, \"bar\", function(){} ]");
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('ArrayWithFunction.json')"));
+        }
+
+
+        [TestMethod, TestCategory("V8Module")]
+        public void V8Module_CommonJS_Json_Malformed()
+        {
+            engine.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading | DocumentAccessFlags.AllowCategoryMismatch;
+            engine.DocumentSettings.LoadCallback = (ref DocumentInfo info) =>
+            {
+                if (Path.GetExtension(info.Uri.AbsolutePath).Equals(".json", StringComparison.OrdinalIgnoreCase))
+                {
+                    info.Category = DocumentCategory.Json;
+                }
+            };
+
+            // ReSharper disable once AccessToDisposedClosure
+            TestUtil.AssertException<ScriptEngineException>(() => engine.Evaluate(new DocumentInfo { Category = ModuleCategory.CommonJS }, "return require('JavaScript/Malformed.json')"));
+        }
+
         #endregion
 
         #region miscellaneous

ClearScriptTest/V8ScriptEngineTest.cs

@@ -4648,6 +4648,524 @@ namespace Microsoft.ClearScript.Test
             Assert.IsTrue(c.All(value => ((ConstructorBindingTest)value).A == 789));
         }
 
+        [TestMethod, TestCategory("V8ScriptEngine")]
+        public void V8ScriptEngine_Compilation_CacheResult()
+        {
+            using (var runtime = new V8Runtime())
+            {
+                engine.Dispose();
+                engine = runtime.CreateScriptEngine(); // default engine enables debugging, which disables caching (in older V8 versions)
+
+                const string code = "obj = { foo: 123, bar: 'baz', qux: 456.789 }; count = 0; for (let name in obj) count += 1; Math.PI";
+                var info = new DocumentInfo("foo.js");
+                byte[] goodCacheBytes;
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.Compile(code, V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.Compile(info, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                    goodCacheBytes = cacheBytes;
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = engine.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = engine.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = engine.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = engine.Compile(info, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = engine.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.Compile(code, V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = runtime.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = runtime.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = runtime.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = runtime.Compile(info, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = runtime.Compile(code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+            }
+        }
+
+        [TestMethod, TestCategory("V8ScriptEngine")]
+        public void V8ScriptEngine_Compilation_CacheResult_Module()
+        {
+            using (var runtime = new V8Runtime())
+            {
+                engine.Dispose();
+                engine = runtime.CreateScriptEngine(); // default engine enables debugging, which disables caching (in older V8 versions)
+
+                const string code = "let obj = { foo: 123, bar: 'baz', qux: 456.789 }; let count = 0; for (let name in obj) count += 1; Math.PI";
+                var info = new DocumentInfo("foo.js") { Category = ModuleCategory.Standard };
+                byte[] goodCacheBytes;
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.Compile(info, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                    goodCacheBytes = cacheBytes;
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = engine.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = engine.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = engine.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = engine.Compile(info, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = engine.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = runtime.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = runtime.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = runtime.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Accepted, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = runtime.Compile(info, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = runtime.Compile(new DocumentInfo { Category = ModuleCategory.Standard }, code, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+            }
+        }
+
+        [TestMethod, TestCategory("V8ScriptEngine")]
+        public void V8ScriptEngine_DocumentCompilation_CacheResult()
+        {
+            using (var runtime = new V8Runtime())
+            {
+                engine.Dispose();
+                engine = runtime.CreateScriptEngine(); // default engine enables debugging, which disables caching (in older V8 versions)
+
+                const string code = "obj = { foo: 123, bar: 'baz', qux: 456.789 }; count = 0; for (let name in obj) count += 1; Math.PI";
+                byte[] goodCacheBytes;
+
+                runtime.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading;
+                runtime.DocumentSettings.AddSystemDocument("foo.js", code);
+                engine.DocumentSettings = runtime.DocumentSettings;
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.CompileDocument("foo.js", V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                    goodCacheBytes = cacheBytes;
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = engine.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = engine.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = engine.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = engine.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.CompileDocument("foo.js", V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = runtime.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = runtime.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = runtime.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = runtime.CompileDocument("foo.js", V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+            }
+        }
+
+        [TestMethod, TestCategory("V8ScriptEngine")]
+        public void V8ScriptEngine_DocumentCompilation_CacheResult_Module()
+        {
+            using (var runtime = new V8Runtime())
+            {
+                engine.Dispose();
+                engine = runtime.CreateScriptEngine(); // default engine enables debugging, which disables caching (in older V8 versions)
+
+                const string code = "let obj = { foo: 123, bar: 'baz', qux: 456.789 }; let count = 0; for (let name in obj) count += 1; Math.PI";
+                byte[] goodCacheBytes;
+
+                runtime.DocumentSettings.AccessFlags = DocumentAccessFlags.EnableFileLoading;
+                runtime.DocumentSettings.AddSystemDocument("foo.js", ModuleCategory.Standard, code);
+                engine.DocumentSettings = runtime.DocumentSettings;
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.AreEqual(Math.PI, engine.Evaluate(script));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = engine.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                    goodCacheBytes = cacheBytes;
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = engine.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = engine.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = engine.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = engine.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.None, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Disabled, cacheResult);
+                    Assert.IsNull(cacheBytes);
+                }
+
+                {
+                    byte[] cacheBytes = null;
+                    var script = runtime.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = ArrayHelpers.GetEmptyArray<byte>();
+                    var script = runtime.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes;
+                    var script = runtime.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.AreEqual(goodCacheBytes, cacheBytes);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.ToArray();
+                    var script = runtime.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Verified, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+
+                {
+                    var cacheBytes = goodCacheBytes.Take(goodCacheBytes.Length - 1).ToArray();
+                    var script = runtime.CompileDocument("foo.js", ModuleCategory.Standard, V8CacheKind.Code, ref cacheBytes, out var cacheResult);
+                    Assert.IsInstanceOfType(engine.Evaluate(script), typeof(Undefined));
+                    Assert.AreEqual(V8CacheResult.Updated, cacheResult);
+                    Assert.IsNotNull(cacheBytes);
+                    Assert.IsTrue(cacheBytes.Length > 0);
+                }
+            }
+        }
+
         // ReSharper restore InconsistentNaming
 
         #endregion

ClearScriptV8/ClearScriptV8Native.h

@@ -19,7 +19,7 @@
 #include "V8ScriptHolder.h"
 #include "HostException.h"
 #include "V8Exception.h"
-#include "V8CacheType.h"
+#include "V8CacheTypes.h"
 #include "V8GlobalFlags.h"
 #include "IV8Entity.h"
 #include "V8Isolate.h"

ClearScriptV8/HostObjectUtil.cpp

@@ -230,12 +230,12 @@ public:
         StdString resourceName;
         StdString sourceMapUrl;
         uint64_t uniqueId;
-        StdBool isModule;
+        DocumentKind documentKind;
         StdString code;
         void* pvDocumentInfo;
-        V8_SPLIT_PROXY_MANAGED_INVOKE_VOID(LoadModule, sourceDocumentInfo.GetDocumentInfo(), specifier, resourceName, sourceMapUrl, uniqueId, isModule, code, pvDocumentInfo, exports);
+        V8_SPLIT_PROXY_MANAGED_INVOKE_VOID(LoadModule, sourceDocumentInfo.GetDocumentInfo(), specifier, resourceName, sourceMapUrl, uniqueId, documentKind, code, pvDocumentInfo, exports);
 
-        documentInfo = V8DocumentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+        documentInfo = V8DocumentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
         return code;
     }
 

ClearScriptV8/V8CacheType.h

@@ -1,16 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT license.
-
-#pragma once
-
-//-----------------------------------------------------------------------------
-// V8CacheType
-//-----------------------------------------------------------------------------
-
-enum class V8CacheType: int32_t
-{
-    // IMPORTANT: maintain bitwise equivalence with managed enum V8.V8CacheKind
-    None,
-    Parser,
-    Code
-};

ClearScriptV8/V8CacheTypes.h

@@ -0,0 +1,30 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+#pragma once
+
+//-----------------------------------------------------------------------------
+// V8CacheKind
+//-----------------------------------------------------------------------------
+
+enum class V8CacheKind: int32_t
+{
+    // IMPORTANT: maintain bitwise equivalence with managed enum V8.V8CacheKind
+    None,
+    Parser,
+    Code
+};
+
+//-----------------------------------------------------------------------------
+// V8CacheResult
+//-----------------------------------------------------------------------------
+
+enum class V8CacheResult : int32_t
+{
+    // IMPORTANT: maintain bitwise equivalence with managed enum V8.V8CacheResult
+    Disabled,
+    Accepted,
+    Verified,
+    Updated,
+    UpdateFailed
+};

ClearScriptV8/V8Context.h

@@ -64,9 +64,12 @@ public:
     virtual void CancelAwaitDebugger() = 0;
 
     virtual V8Value Execute(const V8DocumentInfo& documentInfo, const StdString& code, bool evaluate) = 0;
+
     virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code) = 0;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) = 0;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) = 0;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) = 0;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) = 0;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) = 0;
+
     virtual bool CanExecute(const SharedPtr<V8ScriptHolder>& spHolder) = 0;
     virtual V8Value Execute(const SharedPtr<V8ScriptHolder>& spHolder, bool evaluate) = 0;
 

ClearScriptV8/V8ContextImpl.cpp

@@ -304,7 +304,7 @@ V8ContextImpl::V8ContextImpl(SharedPtr<V8IsolateImpl>&& spIsolateImpl, const Std
         m_hHostObjectTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyIndices, hContextImpl));
         m_hHostObjectTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetIteratorFunction);
         m_hHostObjectTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetAsyncIteratorFunction);
-        m_hHostObjectTemplate->PrototypeTemplate()->Set(hToJSON, hGetJsonFunction);
+        m_hHostObjectTemplate->PrototypeTemplate()->Set(hToJSON, hGetJsonFunction, CombineFlags(v8::ReadOnly, v8::DontDelete, v8::DontEnum));
 
         m_hHostInvocableTemplate = CreatePersistent(CreateFunctionTemplate());
         m_hHostInvocableTemplate->SetClassName(CreateString("HostInvocable"));
@@ -313,7 +313,7 @@ V8ContextImpl::V8ContextImpl(SharedPtr<V8IsolateImpl>&& spIsolateImpl, const Std
         m_hHostInvocableTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyIndices, hContextImpl));
         m_hHostInvocableTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetIteratorFunction);
         m_hHostInvocableTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetAsyncIteratorFunction);
-        m_hHostInvocableTemplate->PrototypeTemplate()->Set(hToJSON, hGetJsonFunction);
+        m_hHostInvocableTemplate->PrototypeTemplate()->Set(hToJSON, hGetJsonFunction, CombineFlags(v8::ReadOnly, v8::DontDelete, v8::DontEnum));
         m_hHostInvocableTemplate->InstanceTemplate()->SetCallAsFunctionHandler(InvokeHostObject, hContextImpl);
 
         m_hHostDelegateTemplate = CreatePersistent(CreateFunctionTemplate());
@@ -323,7 +323,7 @@ V8ContextImpl::V8ContextImpl(SharedPtr<V8IsolateImpl>&& spIsolateImpl, const Std
         m_hHostDelegateTemplate->InstanceTemplate()->SetHandler(v8::IndexedPropertyHandlerConfiguration(GetHostObjectProperty, SetHostObjectProperty, QueryHostObjectProperty, DeleteHostObjectProperty, GetHostObjectPropertyIndices, hContextImpl));
         m_hHostDelegateTemplate->PrototypeTemplate()->Set(GetIteratorSymbol(), hGetIteratorFunction);
         m_hHostDelegateTemplate->PrototypeTemplate()->Set(GetAsyncIteratorSymbol(), hGetAsyncIteratorFunction);
-        m_hHostDelegateTemplate->PrototypeTemplate()->Set(hToJSON, hGetJsonFunction);
+        m_hHostDelegateTemplate->PrototypeTemplate()->Set(hToJSON, hGetJsonFunction, CombineFlags(v8::ReadOnly, v8::DontDelete, v8::DontEnum));
         m_hHostDelegateTemplate->InstanceTemplate()->SetCallAsFunctionHandler(InvokeHostObject, hContextImpl);
         m_hHostDelegateTemplate->InstanceTemplate()->SetHostDelegate(); // instructs our patched V8 typeof implementation to return "function" 
         m_hHostDelegateTemplate->PrototypeTemplate()->Set(CreateString("toFunction"), hToFunctionFunction);
@@ -628,9 +628,9 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
 
 //-----------------------------------------------------------------------------
 
-V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes)
+V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes)
 {
-    if (cacheType == V8CacheType::None)
+    if (cacheKind == V8CacheKind::None)
     {
         cacheBytes.clear();
         return Compile(documentInfo, std::move(code));
@@ -644,11 +644,10 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
         auto codeDigest = code.GetDigest();
         v8::ScriptCompiler::Source source(FROM_MAYBE(CreateString(code)), CreateScriptOrigin(documentInfo));
         std::unique_ptr<V8ScriptHolder> upScriptHolder;
-        std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData;
 
         if (documentInfo.IsModule())
         {
-            auto hModule = GetCachedModule(documentInfo.GetUniqueId(), codeDigest);
+            auto hModule = GetCachedModule(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
             if (hModule.IsEmpty())
             {
                 hModule = VERIFY_MAYBE(CompileModule(&source));
@@ -657,15 +656,31 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
                     throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Module compilation failed; no additional information was provided by the V8 runtime")), false /*executionStarted*/);
                 }
 
-                CacheModule(documentInfo, codeDigest, hModule);
+                std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hModule->GetUnboundModuleScript()));
+                if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
+                {
+                    cacheBytes.resize(upCachedData->length);
+                    memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                }
+
+                CacheModule(documentInfo, codeDigest, hModule, cacheBytes);
+            }
+            else if (cacheBytes.empty())
+            {
+                std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hModule->GetUnboundModuleScript()));
+                if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
+                {
+                    cacheBytes.resize(upCachedData->length);
+                    memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                    SetCachedModuleCacheBytes(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
+                }
             }
 
             upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hModule)), documentInfo, codeDigest, std::move(code)));
-            upCachedData.reset(v8::ScriptCompiler::CreateCodeCache(hModule->GetUnboundModuleScript()));
         }
         else
         {
-            auto hScript = GetCachedScript(documentInfo.GetUniqueId(), codeDigest);
+            auto hScript = GetCachedScript(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
             if (hScript.IsEmpty())
             {
                 hScript = VERIFY_MAYBE(CompileUnboundScript(&source));
@@ -674,24 +689,33 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
                     throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Script compilation failed; no additional information was provided by the V8 runtime")), false /*executionStarted*/);
                 }
 
-                CacheScript(documentInfo, codeDigest, hScript);
-            }
-
-            upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hScript)), documentInfo, codeDigest));
-            upCachedData.reset(v8::ScriptCompiler::CreateCodeCache(hScript));
-        }
-
-        cacheBytes.clear();
+                std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hScript));
                 if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
                 {
                     cacheBytes.resize(upCachedData->length);
                     memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                }
 
-            if (documentInfo.IsModule())
+                CacheScript(documentInfo, codeDigest, hScript, cacheBytes);
+            }
+            else if (cacheBytes.empty())
+            {
+                std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hScript));
+                if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
+                {
+                    cacheBytes.resize(upCachedData->length);
+                    memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                    SetCachedScriptCacheBytes(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
+                }
+            }
+
+            upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hScript)), documentInfo, codeDigest));
+        }
+
+        if (!cacheBytes.empty() && documentInfo.IsModule())
         {
             upScriptHolder->SetCacheBytes(cacheBytes);
         }
-        }
 
         return upScriptHolder.release();
 
@@ -707,11 +731,12 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
 
 //-----------------------------------------------------------------------------
 
-V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted)
-{
-    if ((cacheType == V8CacheType::None) || (cacheBytes.size() < 1))
+V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted)
 {
     cacheAccepted = false;
+
+    if ((cacheKind == V8CacheKind::None) || cacheBytes.empty())
+    {
         return Compile(documentInfo, std::move(code));
     }
 
@@ -736,7 +761,8 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
                     throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Module compilation failed; no additional information was provided by the V8 runtime")), false /*executionStarted*/);
                 }
 
-                CacheModule(documentInfo, codeDigest, hModule);
+                cacheAccepted = !pCachedData->rejected;
+                CacheModule(documentInfo, codeDigest, hModule, cacheAccepted ? cacheBytes : std::vector<uint8_t>());
             }
 
             upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hModule)), documentInfo, codeDigest, std::move(code)));
@@ -752,13 +778,13 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
                     throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Script compilation failed; no additional information was provided by the V8 runtime")), false /*executionStarted*/);
                 }
 
-                CacheScript(documentInfo, codeDigest, hScript);
+                cacheAccepted = !pCachedData->rejected;
+                CacheScript(documentInfo, codeDigest, hScript, cacheAccepted ? cacheBytes : std::vector<uint8_t>());
             }
 
             upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hScript)), documentInfo, codeDigest));
         }
 
-        cacheAccepted = !pCachedData->rejected;
         if (cacheAccepted && documentInfo.IsModule())
         {
             upScriptHolder->SetCacheBytes(cacheBytes);
@@ -778,6 +804,170 @@ V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
 
 //-----------------------------------------------------------------------------
 
+V8ScriptHolder* V8ContextImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult)
+{
+    if (cacheKind == V8CacheKind::None)
+    {
+        cacheResult = V8CacheResult::Disabled;
+        return Compile(documentInfo, std::move(code));
+    }
+
+    if (cacheBytes.empty())
+    {
+        auto pScriptHolder = Compile(documentInfo, std::move(code), cacheKind, cacheBytes);
+        cacheResult = !cacheBytes.empty() ? V8CacheResult::Updated : V8CacheResult::UpdateFailed;
+        return pScriptHolder;
+    }
+
+    BEGIN_CONTEXT_SCOPE
+    BEGIN_DOCUMENT_SCOPE(documentInfo)
+    BEGIN_EXECUTION_SCOPE
+    FROM_MAYBE_TRY
+
+        auto codeDigest = code.GetDigest();
+        auto pCachedData = new v8::ScriptCompiler::CachedData(cacheBytes.data(), static_cast<int>(cacheBytes.size()), v8::ScriptCompiler::CachedData::BufferNotOwned);
+        v8::ScriptCompiler::Source source(FROM_MAYBE(CreateString(code)), CreateScriptOrigin(documentInfo), pCachedData);
+        std::unique_ptr<V8ScriptHolder> upScriptHolder;
+        std::vector<uint8_t> cachedCacheBytes;
+
+        if (documentInfo.IsModule())
+        {
+            auto hModule = GetCachedModule(documentInfo.GetUniqueId(), codeDigest, cachedCacheBytes);
+            if (hModule.IsEmpty())
+            {
+                hModule = VERIFY_MAYBE(CompileModule(&source, v8::ScriptCompiler::kConsumeCodeCache));
+                if (hModule.IsEmpty())
+                {
+                    throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Module compilation failed; no additional information was provided by the V8 runtime")), false /*executionStarted*/);
+                }
+
+                if (!pCachedData->rejected)
+                {
+                    cacheResult = V8CacheResult::Accepted;
+                }
+                else
+                {
+                    std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hModule->GetUnboundModuleScript()));
+                    if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
+                    {
+                        cacheBytes.resize(upCachedData->length);
+                        memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                        cacheResult = V8CacheResult::Updated;
+                    }
+                    else
+                    {
+                        cacheResult = V8CacheResult::UpdateFailed;
+                    }
+                }
+
+                CacheModule(documentInfo, codeDigest, hModule, (cacheResult != V8CacheResult::UpdateFailed) ? cacheBytes : std::vector<uint8_t>());
+            }
+            else if (cachedCacheBytes.empty())
+            {
+                std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hModule->GetUnboundModuleScript()));
+                if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
+                {
+                    cacheBytes.resize(upCachedData->length);
+                    memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                    SetCachedModuleCacheBytes(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
+                    cacheResult = V8CacheResult::Updated;
+                }
+                else
+                {
+                    cacheResult = V8CacheResult::UpdateFailed;
+                }
+            }
+            else if (cachedCacheBytes == cacheBytes)
+            {
+                cacheResult = V8CacheResult::Verified;
+            }
+            else
+            {
+                cacheBytes = cachedCacheBytes;
+                cacheResult = V8CacheResult::Updated;
+            }
+
+            upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hModule)), documentInfo, codeDigest, std::move(code)));
+        }
+        else
+        {
+            auto hScript = GetCachedScript(documentInfo.GetUniqueId(), codeDigest, cachedCacheBytes);
+            if (hScript.IsEmpty())
+            {
+                hScript = VERIFY_MAYBE(CompileUnboundScript(&source, v8::ScriptCompiler::kConsumeCodeCache));
+                if (hScript.IsEmpty())
+                {
+                    throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("Script compilation failed; no additional information was provided by the V8 runtime")), false /*executionStarted*/);
+                }
+
+                if (!pCachedData->rejected)
+                {
+                    cacheResult = V8CacheResult::Accepted;
+                }
+                else
+                {
+                    std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hScript));
+                    if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
+                    {
+                        cacheBytes.resize(upCachedData->length);
+                        memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                        cacheResult = V8CacheResult::Updated;
+                    }
+                    else
+                    {
+                        cacheResult = V8CacheResult::UpdateFailed;
+                    }
+                }
+
+                CacheScript(documentInfo, codeDigest, hScript, (cacheResult != V8CacheResult::UpdateFailed) ? cacheBytes : std::vector<uint8_t>());
+            }
+            else if (cachedCacheBytes.empty())
+            {
+                std::unique_ptr<v8::ScriptCompiler::CachedData> upCachedData(v8::ScriptCompiler::CreateCodeCache(hScript));
+                if (upCachedData && (upCachedData->length > 0) && (upCachedData->data != nullptr))
+                {
+                    cacheBytes.resize(upCachedData->length);
+                    memcpy(cacheBytes.data(), upCachedData->data, upCachedData->length);
+                    SetCachedScriptCacheBytes(documentInfo.GetUniqueId(), codeDigest, cacheBytes);
+                    cacheResult = V8CacheResult::Updated;
+                }
+                else
+                {
+                    cacheResult = V8CacheResult::UpdateFailed;
+                }
+            }
+            else if (cachedCacheBytes == cacheBytes)
+            {
+                cacheResult = V8CacheResult::Verified;
+            }
+            else
+            {
+                cacheBytes = cachedCacheBytes;
+                cacheResult = V8CacheResult::Updated;
+            }
+
+            upScriptHolder.reset(new V8ScriptHolderImpl(GetWeakBinding(), ::PtrFromHandle(CreatePersistent(hScript)), documentInfo, codeDigest));
+        }
+
+        if (cacheResult != V8CacheResult::UpdateFailed)
+        {
+            upScriptHolder->SetCacheBytes(cacheBytes);
+        }
+
+        return upScriptHolder.release();
+
+    FROM_MAYBE_CATCH
+
+        throw V8Exception(V8Exception::Type::General, m_Name, StdString(SL("The V8 runtime cannot perform the requested operation because a script exception is pending")), EXECUTION_STARTED);
+
+    FROM_MAYBE_END
+    END_EXECUTION_SCOPE
+    END_DOCUMENT_SCOPE
+    END_CONTEXT_SCOPE
+}
+
+//-----------------------------------------------------------------------------
+
 bool V8ContextImpl::CanExecute(const SharedPtr<V8ScriptHolder>& spHolder)
 {
     return spHolder->IsSameIsolate(m_spIsolateImpl);
@@ -805,7 +995,7 @@ V8Value V8ContextImpl::Execute(const SharedPtr<V8ScriptHolder>& spHolder, bool e
             auto hModule = GetCachedModule(spHolder->GetDocumentInfo().GetUniqueId(), codeDigest);
             if (hModule.IsEmpty())
             {
-                if (spHolder->GetCacheBytes().size() > 0)
+                if (!spHolder->GetCacheBytes().empty())
                 {
                     auto pCachedData = new v8::ScriptCompiler::CachedData(spHolder->GetCacheBytes().data(), static_cast<int>(spHolder->GetCacheBytes().size()), v8::ScriptCompiler::CachedData::BufferNotOwned);
                     v8::ScriptCompiler::Source source(FROM_MAYBE(CreateString(spHolder->GetCode())), CreateScriptOrigin(spHolder->GetDocumentInfo()), pCachedData);
@@ -1552,10 +1742,22 @@ v8::MaybeLocal<v8::Module> V8ContextImpl::ResolveModule(v8::Local<v8::String> hS
                         std::vector<v8::Local<v8::String>> names;
                         std::vector<SyntheticModuleExport> exports;
 
-                        auto hExports = ::ValueAsObject(ImportValue(exportsValue));
-                        if (!hExports.IsEmpty())
+                        auto hExportsValue = ImportValue(exportsValue);
+                        if (hExportsValue.IsEmpty())
                         {
-                            auto hOwnPropertyNames = FROM_MAYBE(hExports->GetOwnPropertyNames(m_hContext, v8::SKIP_SYMBOLS, v8::KeyConversionMode::kNoNumbers));
+                            hExportsValue = GetUndefined();
+                        }
+
+                        if ((documentInfo.GetKind() == DocumentKind::Json) || !hExportsValue->IsObject())
+                        {
+                            auto hName = CreateString("default");
+                            names.push_back(hName);
+                            exports.push_back({ CreatePersistent(hName), CreatePersistent(hExportsValue) });
+                        }
+                        else
+                        {
+                            auto hExports = hExportsValue.As<v8::Object>();
+                            auto hOwnPropertyNames = FROM_MAYBE(hExports->GetOwnPropertyNames(m_hContext, v8::SKIP_SYMBOLS, v8::KeyConversionMode::kConvertToString));
                             if (!hOwnPropertyNames.IsEmpty())
                             {
                                 auto length = hOwnPropertyNames->Length();
@@ -1931,7 +2133,7 @@ void V8ContextImpl::GetGlobalProperty(v8::Local<v8::Name> hKey, const v8::Proper
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 for (auto it = stack.rbegin(); it != stack.rend(); it++)
                 {
@@ -1962,7 +2164,7 @@ void V8ContextImpl::SetGlobalProperty(v8::Local<v8::Name> hKey, v8::Local<v8::Va
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 for (auto it = stack.rbegin(); it != stack.rend(); it++)
                 {
@@ -1994,7 +2196,7 @@ void V8ContextImpl::QueryGlobalProperty(v8::Local<v8::Name> hKey, const v8::Prop
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 for (auto it = stack.rbegin(); it != stack.rend(); it++)
                 {
@@ -2025,7 +2227,7 @@ void V8ContextImpl::DeleteGlobalProperty(v8::Local<v8::Name> hKey, const v8::Pro
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 for (auto it = stack.rbegin(); it != stack.rend(); it++)
                 {
@@ -2069,7 +2271,7 @@ void V8ContextImpl::GetGlobalPropertyNames(const v8::PropertyCallbackInfo<v8::Ar
             try
             {
                 const auto& stack = pContextImpl->m_GlobalMembersStack;
-                if (stack.size() > 0)
+                if (!stack.empty())
                 {
                     std::vector<StdString> names;
                     for (auto it = stack.rbegin(); it != stack.rend(); it++)
@@ -2121,7 +2323,7 @@ void V8ContextImpl::GetGlobalProperty(uint32_t index, const v8::PropertyCallback
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 auto hName = FROM_MAYBE(pContextImpl->CreateInteger(index)->ToString(pContextImpl->m_hContext));
                 for (auto it = stack.rbegin(); it != stack.rend(); it++)
@@ -2147,7 +2349,7 @@ void V8ContextImpl::SetGlobalProperty(uint32_t index, v8::Local<v8::Value> hValu
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 auto hName = FROM_MAYBE(pContextImpl->CreateInteger(index)->ToString(pContextImpl->m_hContext));
                 for (auto it = stack.rbegin(); it != stack.rend(); it++)
@@ -2174,7 +2376,7 @@ void V8ContextImpl::QueryGlobalProperty(uint32_t index, const v8::PropertyCallba
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 auto hIndex = pContextImpl->CreateInteger(index);
                 auto hName = FROM_MAYBE(hIndex->ToString(pContextImpl->m_hContext));
@@ -2201,7 +2403,7 @@ void V8ContextImpl::DeleteGlobalProperty(uint32_t index, const v8::PropertyCallb
         if (CheckContextImplForGlobalObjectCallback(pContextImpl))
         {
             const auto& stack = pContextImpl->m_GlobalMembersStack;
-            if (stack.size() > 0)
+            if (!stack.empty())
             {
                 auto hName = FROM_MAYBE(pContextImpl->CreateInteger(index)->ToString(pContextImpl->m_hContext));
                 for (auto it = stack.rbegin(); it != stack.rend(); it++)
@@ -2229,7 +2431,7 @@ void V8ContextImpl::GetGlobalPropertyIndices(const v8::PropertyCallbackInfo<v8::
             try
             {
                 const auto& stack = pContextImpl->m_GlobalMembersStack;
-                if (stack.size() > 0)
+                if (!stack.empty())
                 {
                     std::vector<int> indices;
                     for (auto it = stack.rbegin(); it != stack.rend(); it++)
@@ -2874,7 +3076,34 @@ v8::Local<v8::Module> V8ContextImpl::GetCachedModule(uint64_t uniqueId, size_t c
 
 //-----------------------------------------------------------------------------
 
+v8::Local<v8::Module> V8ContextImpl::GetCachedModule(uint64_t uniqueId, size_t codeDigest, std::vector<uint8_t>& cacheBytes)
+{
+    _ASSERTE(m_spIsolateImpl->IsCurrent() && m_spIsolateImpl->IsLocked());
+
+    for (auto it = m_ModuleCache.begin(); it != m_ModuleCache.end(); it++)
+    {
+        if ((it->DocumentInfo.GetUniqueId() == uniqueId) && (it->CodeDigest == codeDigest))
+        {
+            m_ModuleCache.splice(m_ModuleCache.begin(), m_ModuleCache, it);
+            cacheBytes = it->CacheBytes;
+            return it->hModule;
+        }
+    }
+
+    cacheBytes.clear();
+    return v8::Local<v8::Module>();
+}
+
+//-----------------------------------------------------------------------------
+
 void V8ContextImpl::CacheModule(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::Module> hModule)
+{
+    CacheModule(documentInfo, codeDigest, hModule, std::vector<uint8_t>());
+}
+
+//-----------------------------------------------------------------------------
+
+void V8ContextImpl::CacheModule(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::Module> hModule, const std::vector<uint8_t>& cacheBytes)
 {
     _ASSERTE(m_spIsolateImpl->IsCurrent() && m_spIsolateImpl->IsLocked());
 
@@ -2891,7 +3120,7 @@ void V8ContextImpl::CacheModule(const V8DocumentInfo& documentInfo, size_t codeD
         return (entry.DocumentInfo.GetUniqueId() == documentInfo.GetUniqueId()) && (entry.CodeDigest == codeDigest);
     }));
 
-    ModuleCacheEntry entry { documentInfo, codeDigest, CreatePersistent(hModule) };
+    ModuleCacheEntry entry { documentInfo, codeDigest, CreatePersistent(hModule), cacheBytes };
     m_ModuleCache.push_front(std::move(entry));
 
     m_Statistics.ModuleCacheSize = m_ModuleCache.size();
@@ -2899,11 +3128,28 @@ void V8ContextImpl::CacheModule(const V8DocumentInfo& documentInfo, size_t codeD
 
 //-----------------------------------------------------------------------------
 
+void V8ContextImpl::SetCachedModuleCacheBytes(uint64_t uniqueId, size_t codeDigest, const std::vector<uint8_t>& cacheBytes)
+{
+    _ASSERTE(m_spIsolateImpl->IsCurrent() && m_spIsolateImpl->IsLocked());
+
+    for (auto it = m_ModuleCache.begin(); it != m_ModuleCache.end(); it++)
+    {
+        if ((it->DocumentInfo.GetUniqueId() == uniqueId) && (it->CodeDigest == codeDigest))
+        {
+            m_ModuleCache.splice(m_ModuleCache.begin(), m_ModuleCache, it);
+            it->CacheBytes = cacheBytes;
+            return;
+        }
+    }
+}
+
+//-----------------------------------------------------------------------------
+
 void V8ContextImpl::ClearModuleCache()
 {
     _ASSERTE(m_spIsolateImpl->IsCurrent() && m_spIsolateImpl->IsLocked());
 
-    while (m_ModuleCache.size() > 0)
+    while (!m_ModuleCache.empty())
     {
         Dispose(m_ModuleCache.front().hModule);
         m_ModuleCache.pop_front();
@@ -2928,6 +3174,13 @@ v8::Local<v8::UnboundScript> V8ContextImpl::GetCachedScript(uint64_t uniqueId, s
 
 //-----------------------------------------------------------------------------
 
+v8::Local<v8::UnboundScript> V8ContextImpl::GetCachedScript(uint64_t uniqueId, size_t codeDigest, std::vector<uint8_t>& cacheBytes)
+{
+    return m_spIsolateImpl->GetCachedScript(uniqueId, codeDigest, cacheBytes);
+}
+
+//-----------------------------------------------------------------------------
+
 void V8ContextImpl::CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript)
 {
     m_spIsolateImpl->CacheScript(documentInfo, codeDigest, hScript);
@@ -2935,6 +3188,18 @@ void V8ContextImpl::CacheScript(const V8DocumentInfo& documentInfo, size_t codeD
 
 //-----------------------------------------------------------------------------
 
+void V8ContextImpl::CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript, const std::vector<uint8_t>& cacheBytes)
+{
+    m_spIsolateImpl->CacheScript(documentInfo, codeDigest, hScript, cacheBytes);
+}
+
+void V8ContextImpl::SetCachedScriptCacheBytes(uint64_t uniqueId, size_t codeDigest, const std::vector<uint8_t>& cacheBytes)
+{
+    m_spIsolateImpl->SetCachedScriptCacheBytes(uniqueId, codeDigest, cacheBytes);
+}
+
+//-----------------------------------------------------------------------------
+
 v8::Local<v8::Value> V8ContextImpl::ImportValue(const V8Value& value)
 {
     FROM_MAYBE_TRY

ClearScriptV8/V8ContextImpl.h

@@ -43,9 +43,12 @@ public:
     virtual void CancelAwaitDebugger() override;
 
     virtual V8Value Execute(const V8DocumentInfo& documentInfo, const StdString& code, bool evaluate) override;
+
     virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code) override;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) override;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) override;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) override;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) override;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) override;
+
     virtual bool CanExecute(const SharedPtr<V8ScriptHolder>& spHolder) override;
     virtual V8Value Execute(const SharedPtr<V8ScriptHolder>& spHolder, bool evaluate) override;
 
@@ -118,6 +121,7 @@ private:
         V8DocumentInfo DocumentInfo;
         size_t CodeDigest;
         Persistent<v8::Module> hModule;
+        std::vector<uint8_t> CacheBytes;
     };
 
     struct SyntheticModuleExport final
@@ -465,12 +469,18 @@ private:
     bool TryGetCachedModuleInfo(uint64_t uniqueId, V8DocumentInfo& documentInfo);
     bool TryGetCachedModuleInfo(v8::Local<v8::Module> hModule, V8DocumentInfo& documentInfo);
     v8::Local<v8::Module> GetCachedModule(uint64_t uniqueId, size_t codeDigest);
+    v8::Local<v8::Module> GetCachedModule(uint64_t uniqueId, size_t codeDigest, std::vector<uint8_t>& cacheBytes);
     void CacheModule(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::Module> hModule);
+    void CacheModule(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::Module> hModule, const std::vector<uint8_t>& cacheBytes);
+    void SetCachedModuleCacheBytes(uint64_t uniqueId, size_t codeDigest, const std::vector<uint8_t>& cacheBytes);
     void ClearModuleCache();
 
     bool TryGetCachedScriptInfo(uint64_t uniqueId, V8DocumentInfo& documentInfo);
     v8::Local<v8::UnboundScript> GetCachedScript(uint64_t uniqueId, size_t codeDigest);
+    v8::Local<v8::UnboundScript> GetCachedScript(uint64_t uniqueId, size_t codeDigest, std::vector<uint8_t>& cacheBytes);
     void CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript);
+    void CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript, const std::vector<uint8_t>& cacheBytes);
+    void SetCachedScriptCacheBytes(uint64_t uniqueId, size_t codeDigest, const std::vector<uint8_t>& cacheBytes);
 
     v8::Local<v8::Value> ImportValue(const V8Value& value);
     V8Value ExportValue(v8::Local<v8::Value> hValue);

ClearScriptV8/V8DocumentInfo.h

@@ -3,30 +3,39 @@
 
 #pragma once
 
+enum class DocumentKind : int32_t
+{
+    // IMPORTANT: maintain bitwise equivalence with managed enum DocumentKind
+    Script,
+    JavaScriptModule,
+    CommonJSModule,
+    Json
+};
+
 struct V8DocumentInfo final
 {
 public:
 
     V8DocumentInfo():
-        m_IsModule(false),
+        m_Kind(DocumentKind::Script),
         m_pvDocumentInfo(nullptr)
     {
     }
 
-    V8DocumentInfo(const StdChar* pResourceName, const StdChar* pSourceMapUrl, uint64_t uniqueId, bool isModule, void* pvDocumentInfo):
+    V8DocumentInfo(const StdChar* pResourceName, const StdChar* pSourceMapUrl, uint64_t uniqueId, DocumentKind kind, void* pvDocumentInfo):
         m_ResourceName(pResourceName),
         m_SourceMapUrl(pSourceMapUrl),
         m_UniqueId(uniqueId),
-        m_IsModule(isModule),
+        m_Kind(kind),
         m_pvDocumentInfo(pvDocumentInfo)
     {
     }
 
-    V8DocumentInfo(StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, bool isModule, void* pvDocumentInfo):
+    V8DocumentInfo(StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind kind, void* pvDocumentInfo):
         m_ResourceName(std::move(resourceName)),
         m_SourceMapUrl(std::move(sourceMapUrl)),
         m_UniqueId(uniqueId),
-        m_IsModule(isModule),
+        m_Kind(kind),
         m_pvDocumentInfo(pvDocumentInfo)
     {
     }
@@ -35,7 +44,7 @@ public:
         m_ResourceName(that.m_ResourceName),
         m_SourceMapUrl(that.m_SourceMapUrl),
         m_UniqueId(that.m_UniqueId),
-        m_IsModule(that.m_IsModule),
+        m_Kind(that.m_Kind),
         m_pvDocumentInfo((that.m_pvDocumentInfo != nullptr) ? HostObjectUtil::GetInstance().AddRef(that.m_pvDocumentInfo) : nullptr)
     {
     }
@@ -44,7 +53,7 @@ public:
         m_ResourceName(std::move(that.m_ResourceName)),
         m_SourceMapUrl(std::move(that.m_SourceMapUrl)),
         m_UniqueId(that.m_UniqueId),
-        m_IsModule(that.m_IsModule),
+        m_Kind(that.m_Kind),
         m_pvDocumentInfo(that.m_pvDocumentInfo)
     {
         that.m_pvDocumentInfo = nullptr;
@@ -56,7 +65,7 @@ public:
         m_ResourceName = that.m_ResourceName;
         m_SourceMapUrl = that.m_SourceMapUrl;
         m_UniqueId = that.m_UniqueId;
-        m_IsModule = that.m_IsModule;
+        m_Kind = that.m_Kind;
         m_pvDocumentInfo = (that.m_pvDocumentInfo != nullptr) ? HostObjectUtil::GetInstance().AddRef(that.m_pvDocumentInfo) : nullptr;
         return *this;
     }
@@ -67,7 +76,7 @@ public:
         m_ResourceName = std::move(that.m_ResourceName);
         m_SourceMapUrl = std::move(that.m_SourceMapUrl);
         m_UniqueId = that.m_UniqueId;
-        m_IsModule = that.m_IsModule;
+        m_Kind = that.m_Kind;
         m_pvDocumentInfo = that.m_pvDocumentInfo;
         that.m_pvDocumentInfo = nullptr;
         return *this;
@@ -84,14 +93,16 @@ public:
     const StdString& GetResourceName() const { return m_ResourceName; }
     const StdString& GetSourceMapUrl() const { return m_SourceMapUrl; }
     uint64_t GetUniqueId() const { return m_UniqueId; }
-    bool IsModule() const { return m_IsModule; }
+    DocumentKind GetKind() const { return m_Kind; }
     void* GetDocumentInfo() const { return m_pvDocumentInfo; }
 
+    bool IsModule() const { return GetKind() == DocumentKind::JavaScriptModule; }
+
 private:
 
     StdString m_ResourceName;
     StdString m_SourceMapUrl;
     uint64_t m_UniqueId {};
-    bool m_IsModule;
+    DocumentKind m_Kind;
     void* m_pvDocumentInfo;
 };

ClearScriptV8/V8Isolate.h

@@ -75,8 +75,9 @@ public:
     virtual void CancelAwaitDebugger() = 0;
 
     virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code) = 0;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) = 0;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) = 0;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) = 0;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) = 0;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) = 0;
 
     virtual bool GetEnableInterruptPropagation() = 0;
     virtual void SetEnableInterruptPropagation(bool value) = 0;

ClearScriptV8/V8IsolateImpl.cpp

@@ -759,7 +759,7 @@ V8ScriptHolder* V8IsolateImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
 {
     BEGIN_ISOLATE_SCOPE
 
-        SharedPtr<V8ContextImpl> spContextImpl((m_ContextEntries.size() > 0) ? m_ContextEntries.front().pContextImpl : new V8ContextImpl(this, m_Name));
+        SharedPtr<V8ContextImpl> spContextImpl(!m_ContextEntries.empty() ? m_ContextEntries.front().pContextImpl : new V8ContextImpl(this, m_Name));
         return spContextImpl->Compile(documentInfo, std::move(code));
 
     END_ISOLATE_SCOPE
@@ -767,24 +767,36 @@ V8ScriptHolder* V8IsolateImpl::Compile(const V8DocumentInfo& documentInfo, StdSt
 
 //-----------------------------------------------------------------------------
 
-V8ScriptHolder* V8IsolateImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes)
+V8ScriptHolder* V8IsolateImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes)
 {
     BEGIN_ISOLATE_SCOPE
 
-        SharedPtr<V8ContextImpl> spContextImpl((m_ContextEntries.size() > 0) ? m_ContextEntries.front().pContextImpl : new V8ContextImpl(this, m_Name));
-        return spContextImpl->Compile(documentInfo, std::move(code), cacheType, cacheBytes);
+        SharedPtr<V8ContextImpl> spContextImpl(!m_ContextEntries.empty() ? m_ContextEntries.front().pContextImpl : new V8ContextImpl(this, m_Name));
+        return spContextImpl->Compile(documentInfo, std::move(code), cacheKind, cacheBytes);
 
     END_ISOLATE_SCOPE
 }
 
 //-----------------------------------------------------------------------------
 
-V8ScriptHolder* V8IsolateImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted)
+V8ScriptHolder* V8IsolateImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted)
 {
     BEGIN_ISOLATE_SCOPE
 
-        SharedPtr<V8ContextImpl> spContextImpl((m_ContextEntries.size() > 0) ? m_ContextEntries.front().pContextImpl : new V8ContextImpl(this, m_Name));
-        return spContextImpl->Compile(documentInfo, std::move(code), cacheType, cacheBytes, cacheAccepted);
+        SharedPtr<V8ContextImpl> spContextImpl(!m_ContextEntries.empty() ? m_ContextEntries.front().pContextImpl : new V8ContextImpl(this, m_Name));
+        return spContextImpl->Compile(documentInfo, std::move(code), cacheKind, cacheBytes, cacheAccepted);
+
+    END_ISOLATE_SCOPE
+}
+
+//-----------------------------------------------------------------------------
+
+V8ScriptHolder* V8IsolateImpl::Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult)
+{
+    BEGIN_ISOLATE_SCOPE
+
+        SharedPtr<V8ContextImpl> spContextImpl(!m_ContextEntries.empty() ? m_ContextEntries.front().pContextImpl : new V8ContextImpl(this, m_Name));
+        return spContextImpl->Compile(documentInfo, std::move(code), cacheKind, cacheBytes, cacheResult);
 
     END_ISOLATE_SCOPE
 }
@@ -1003,7 +1015,7 @@ v8::Local<v8::Context> V8IsolateImpl::ensureDefaultContextInGroup(int contextGro
 {
     _ASSERTE(IsCurrent() && IsLocked());
 
-    if (m_ContextEntries.size() > 0)
+    if (!m_ContextEntries.empty())
     {
         return m_ContextEntries.front().pContextImpl->GetContext();
     }
@@ -1463,7 +1475,7 @@ bool V8IsolateImpl::TryGetCachedScriptInfo(uint64_t uniqueId, V8DocumentInfo& do
 {
     _ASSERTE(IsCurrent() && IsLocked());
 
-    for (auto it = m_ScriptCache.begin(); it != m_ScriptCache.end(); it++)
+    for (auto it = m_ScriptCache.cbegin(); it != m_ScriptCache.cend(); it++)
     {
         if (it->DocumentInfo.GetUniqueId() == uniqueId)
         {
@@ -1482,7 +1494,7 @@ v8::Local<v8::UnboundScript> V8IsolateImpl::GetCachedScript(uint64_t uniqueId, s
 {
     _ASSERTE(IsCurrent() && IsLocked());
 
-    for (auto it = m_ScriptCache.begin(); it != m_ScriptCache.end(); it++)
+    for (auto it = m_ScriptCache.cbegin(); it != m_ScriptCache.cend(); it++)
     {
         if ((it->DocumentInfo.GetUniqueId() == uniqueId) && (it->CodeDigest == codeDigest))
         {
@@ -1496,7 +1508,34 @@ v8::Local<v8::UnboundScript> V8IsolateImpl::GetCachedScript(uint64_t uniqueId, s
 
 //-----------------------------------------------------------------------------
 
+v8::Local<v8::UnboundScript> V8IsolateImpl::GetCachedScript(uint64_t uniqueId, size_t codeDigest, std::vector<uint8_t>& cacheBytes)
+{
+    _ASSERTE(IsCurrent() && IsLocked());
+
+    for (auto it = m_ScriptCache.cbegin(); it != m_ScriptCache.cend(); it++)
+    {
+        if ((it->DocumentInfo.GetUniqueId() == uniqueId) && (it->CodeDigest == codeDigest))
+        {
+            m_ScriptCache.splice(m_ScriptCache.begin(), m_ScriptCache, it);
+            cacheBytes = it->CacheBytes;
+            return it->hScript;
+        }
+    }
+
+    cacheBytes.clear();
+    return v8::Local<v8::UnboundScript>();
+}
+
+//-----------------------------------------------------------------------------
+
 void V8IsolateImpl::CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript)
+{
+    CacheScript(documentInfo, codeDigest, hScript, std::vector<uint8_t>());
+}
+
+//-----------------------------------------------------------------------------
+
+void V8IsolateImpl::CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript, const std::vector<uint8_t>& cacheBytes)
 {
     _ASSERTE(IsCurrent() && IsLocked());
 
@@ -1513,7 +1552,7 @@ void V8IsolateImpl::CacheScript(const V8DocumentInfo& documentInfo, size_t codeD
         return (entry.DocumentInfo.GetUniqueId() == documentInfo.GetUniqueId()) && (entry.CodeDigest == codeDigest);
     }));
 
-    ScriptCacheEntry entry { documentInfo, codeDigest, CreatePersistent(hScript) };
+    ScriptCacheEntry entry { documentInfo, codeDigest, CreatePersistent(hScript), cacheBytes };
     m_ScriptCache.push_front(std::move(entry));
 
     m_Statistics.ScriptCacheSize = m_ScriptCache.size();
@@ -1521,11 +1560,28 @@ void V8IsolateImpl::CacheScript(const V8DocumentInfo& documentInfo, size_t codeD
 
 //-----------------------------------------------------------------------------
 
+void V8IsolateImpl::SetCachedScriptCacheBytes(uint64_t uniqueId, size_t codeDigest, const std::vector<uint8_t>& cacheBytes)
+{
+    _ASSERTE(IsCurrent() && IsLocked());
+
+    for (auto it = m_ScriptCache.begin(); it != m_ScriptCache.end(); it++)
+    {
+        if ((it->DocumentInfo.GetUniqueId() == uniqueId) && (it->CodeDigest == codeDigest))
+        {
+            m_ScriptCache.splice(m_ScriptCache.begin(), m_ScriptCache, it);
+            it->CacheBytes = cacheBytes;
+            return;
+        }
+    }
+}
+
+//-----------------------------------------------------------------------------
+
 void V8IsolateImpl::ClearScriptCache()
 {
     _ASSERTE(IsCurrent() && IsLocked());
 
-    while (m_ScriptCache.size() > 0)
+    while (!m_ScriptCache.empty())
     {
         Dispose(m_ScriptCache.front().hScript);
         m_ScriptCache.pop_front();
@@ -1686,7 +1742,7 @@ void V8IsolateImpl::ProcessCallWithLockQueue(std::unique_lock<std::mutex>& lock)
     _ASSERTE(lock.owns_lock());
 
     CallWithLockQueue callWithLockQueue(PopCallWithLockQueue(lock));
-    while (callWithLockQueue.size() > 0)
+    while (!callWithLockQueue.empty())
     {
         lock.unlock();
         ProcessCallWithLockQueue(callWithLockQueue);
@@ -1703,7 +1759,7 @@ void V8IsolateImpl::ProcessCallWithLockQueue(CallWithLockQueue& callWithLockQueu
 
     BEGIN_PULSE_VALUE_SCOPE(&m_CallWithLockLevel, m_CallWithLockLevel + 1)
 
-        while (callWithLockQueue.size() > 0)
+        while (!callWithLockQueue.empty())
         {
             try
             {
@@ -1736,7 +1792,7 @@ V8IsolateImpl::CallWithLockQueue V8IsolateImpl::PopCallWithLockQueue(const std::
     CallWithLockQueue nestableCallWithLockQueue;
     CallWithLockQueue nonNestableCallWithLockQueue;
 
-    while (m_CallWithLockQueue.size() > 0)
+    while (!m_CallWithLockQueue.empty())
     {
         auto& callWithLockEntry = m_CallWithLockQueue.front();
         auto& callWithLockQueue = callWithLockEntry.first ? nestableCallWithLockQueue : nonNestableCallWithLockQueue;

ClearScriptV8/V8IsolateImpl.h

@@ -476,8 +476,9 @@ public:
     virtual void CancelAwaitDebugger() override;
 
     virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code) override;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) override;
-    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) override;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) override;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) override;
+    virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) override;
 
     virtual bool GetEnableInterruptPropagation() override;
     virtual void SetEnableInterruptPropagation(bool value) override;
@@ -535,7 +536,10 @@ public:
 
     bool TryGetCachedScriptInfo(uint64_t uniqueId, V8DocumentInfo& documentInfo);
     v8::Local<v8::UnboundScript> GetCachedScript(uint64_t uniqueId, size_t codeDigest);
+    v8::Local<v8::UnboundScript> GetCachedScript(uint64_t uniqueId, size_t codeDigest, std::vector<uint8_t>& cacheBytes);
     void CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript);
+    void CacheScript(const V8DocumentInfo& documentInfo, size_t codeDigest, v8::Local<v8::UnboundScript> hScript, const std::vector<uint8_t>& cacheBytes);
+    void SetCachedScriptCacheBytes(uint64_t uniqueId, size_t codeDigest, const std::vector<uint8_t>& cacheBytes);
     void ClearScriptCache();
 
     ~V8IsolateImpl();
@@ -585,6 +589,7 @@ private:
         V8DocumentInfo DocumentInfo;
         size_t CodeDigest;
         Persistent<v8::UnboundScript> hScript;
+        std::vector<uint8_t> CacheBytes;
     };
 
     enum class RunMessageLoopReason

ClearScriptV8/V8ScriptHolderImpl.cpp

@@ -21,8 +21,8 @@ V8ScriptHolderImpl::V8ScriptHolderImpl(const SharedPtr<V8WeakContextBinding>& sp
     m_spBinding(spBinding),
     m_pvScript(pvScript),
     m_DocumentInfo(documentInfo),
-    m_Code(std::move(code)),
-    m_CodeDigest(codeDigest)
+    m_CodeDigest(codeDigest),
+    m_Code(std::move(code))
 {
 }
 

ClearScriptV8/V8SplitProxyManaged.h

@@ -62,7 +62,7 @@
     V8_SPLIT_PROXY_MANAGED_METHOD(StdBool, ChangeNativeCallbackTimer, void* pvTimer, int32_t dueTime, int32_t period) \
     V8_SPLIT_PROXY_MANAGED_METHOD(void, DestroyNativeCallbackTimer, void* pvTimer) \
     \
-    V8_SPLIT_PROXY_MANAGED_METHOD(void, LoadModule, void* pvSourceDocumentInfo, const StdString& specifier, StdString& resourceName, StdString& sourceMapUrl, uint64_t& uniqueId, StdBool& isModule, StdString& code, void*& pvDocumentInfo, V8Value& exports) \
+    V8_SPLIT_PROXY_MANAGED_METHOD(void, LoadModule, void* pvSourceDocumentInfo, const StdString& specifier, StdString& resourceName, StdString& sourceMapUrl, uint64_t& uniqueId, DocumentKind& documentKind, StdString& code, void*& pvDocumentInfo, V8Value& exports) \
     V8_SPLIT_PROXY_MANAGED_METHOD(int32_t, CreateModuleContext, void* pvDocumentInfo, std::vector<StdString>& names, std::vector<V8Value>& values) \
     \
     V8_SPLIT_PROXY_MANAGED_METHOD(void, WriteBytesToStream, void* pvStream, const uint8_t* pBytes, int32_t count) \

ClearScriptV8/V8SplitProxyNative.cpp

@@ -800,9 +800,9 @@ NATIVE_ENTRY_POINT(void) V8Isolate_CancelAwaitDebugger(const V8IsolateHandle& ha
 
 //-----------------------------------------------------------------------------
 
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_Compile(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code) noexcept
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_Compile(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code) noexcept
 {
-    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
 
     auto spIsolate = handle.GetEntity();
     if (!spIsolate.IsEmpty())
@@ -822,23 +822,23 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_Compile(const V8IsolateHandle& han
 
 //-----------------------------------------------------------------------------
 
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileProducingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) noexcept
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileProducingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) noexcept
 {
     cacheBytes.clear();
 
-    if (cacheType == V8CacheType::None)
+    if (cacheKind == V8CacheKind::None)
     {
-        return V8Isolate_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo, std::move(code));
+        return V8Isolate_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code));
     }
 
-    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
 
     auto spIsolate = handle.GetEntity();
     if (!spIsolate.IsEmpty())
     {
         try
         {
-            return new V8ScriptHandle(spIsolate->Compile(documentInfo, std::move(code), cacheType, cacheBytes));
+            return new V8ScriptHandle(spIsolate->Compile(documentInfo, std::move(code), cacheKind, cacheBytes));
         }
         catch (const V8Exception& exception)
         {
@@ -851,16 +851,16 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileProducingCache(const V8Isol
 
 //-----------------------------------------------------------------------------
 
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileConsumingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileConsumingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept
 {
     cacheAccepted = false;
 
-    if ((cacheType == V8CacheType::None) || cacheBytes.empty())
+    if ((cacheKind == V8CacheKind::None) || cacheBytes.empty())
     {
-        return V8Isolate_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo, std::move(code));
+        return V8Isolate_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code));
     }
 
-    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
 
     auto spIsolate = handle.GetEntity();
     if (!spIsolate.IsEmpty())
@@ -868,7 +868,7 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileConsumingCache(const V8Isol
         try
         {
             auto tempCacheAccepted = false;
-            auto pScriptHandle = new V8ScriptHandle(spIsolate->Compile(documentInfo, std::move(code), cacheType, cacheBytes, tempCacheAccepted));
+            auto pScriptHandle = new V8ScriptHandle(spIsolate->Compile(documentInfo, std::move(code), cacheKind, cacheBytes, tempCacheAccepted));
 
             cacheAccepted = tempCacheAccepted;
             return pScriptHandle;
@@ -884,6 +884,41 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileConsumingCache(const V8Isol
 
 //-----------------------------------------------------------------------------
 
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileUpdatingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) noexcept
+{
+    if (cacheKind == V8CacheKind::None)
+    {
+        cacheResult = V8CacheResult::Disabled;
+        return V8Isolate_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code));
+    }
+
+    if (cacheBytes.empty())
+    {
+        auto pScriptHandle = V8Isolate_CompileProducingCache(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code), cacheKind, cacheBytes);
+        cacheResult = !cacheBytes.empty() ? V8CacheResult::Updated : V8CacheResult::UpdateFailed;
+        return pScriptHandle;
+    }
+
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
+
+    auto spIsolate = handle.GetEntity();
+    if (!spIsolate.IsEmpty())
+    {
+        try
+        {
+            return new V8ScriptHandle(spIsolate->Compile(documentInfo, std::move(code), cacheKind, cacheBytes, cacheResult));
+        }
+        catch (const V8Exception& exception)
+        {
+            exception.ScheduleScriptEngineException();
+        }
+    }
+
+    return nullptr;
+}
+
+//-----------------------------------------------------------------------------
+
 NATIVE_ENTRY_POINT(StdBool) V8Isolate_GetEnableInterruptPropagation(const V8IsolateHandle& handle) noexcept
 {
     auto spIsolate = handle.GetEntity();
@@ -1190,9 +1225,9 @@ NATIVE_ENTRY_POINT(void) V8Context_CancelAwaitDebugger(const V8ContextHandle& ha
 
 //-----------------------------------------------------------------------------
 
-NATIVE_ENTRY_POINT(void) V8Context_ExecuteCode(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, const StdString& code, StdBool evaluate, V8Value& result) noexcept
+NATIVE_ENTRY_POINT(void) V8Context_ExecuteCode(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, const StdString& code, StdBool evaluate, V8Value& result) noexcept
 {
-    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
 
     auto spContext = handle.GetEntity();
     if (!spContext.IsEmpty())
@@ -1210,9 +1245,9 @@ NATIVE_ENTRY_POINT(void) V8Context_ExecuteCode(const V8ContextHandle& handle, St
 
 //-----------------------------------------------------------------------------
 
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_Compile(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code) noexcept
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_Compile(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code) noexcept
 {
-    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
 
     auto spContext = handle.GetEntity();
     if (!spContext.IsEmpty())
@@ -1232,23 +1267,23 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_Compile(const V8ContextHandle& han
 
 //-----------------------------------------------------------------------------
 
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileProducingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) noexcept
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileProducingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) noexcept
 {
     cacheBytes.clear();
 
-    if (cacheType == V8CacheType::None)
+    if (cacheKind == V8CacheKind::None)
     {
-        return V8Context_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo, std::move(code));
+        return V8Context_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code));
     }
 
-    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
 
     auto spContext = handle.GetEntity();
     if (!spContext.IsEmpty())
     {
         try
         {
-            return new V8ScriptHandle(spContext->Compile(documentInfo, std::move(code), cacheType, cacheBytes));
+            return new V8ScriptHandle(spContext->Compile(documentInfo, std::move(code), cacheKind, cacheBytes));
         }
         catch (const V8Exception& exception)
         {
@@ -1261,16 +1296,16 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileProducingCache(const V8Cont
 
 //-----------------------------------------------------------------------------
 
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileConsumingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileConsumingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept
 {
     cacheAccepted = false;
 
-    if ((cacheType == V8CacheType::None) || cacheBytes.empty())
+    if ((cacheKind == V8CacheKind::None) || cacheBytes.empty())
     {
-        return V8Context_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo, std::move(code));
+        return V8Context_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code));
     }
 
-    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, isModule, pvDocumentInfo);
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
 
     auto spContext = handle.GetEntity();
     if (!spContext.IsEmpty())
@@ -1278,7 +1313,7 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileConsumingCache(const V8Cont
         try
         {
             auto tempCacheAccepted = false;
-            auto pScriptHandle = new V8ScriptHandle(spContext->Compile(documentInfo, std::move(code), cacheType, cacheBytes, tempCacheAccepted));
+            auto pScriptHandle = new V8ScriptHandle(spContext->Compile(documentInfo, std::move(code), cacheKind, cacheBytes, tempCacheAccepted));
 
             cacheAccepted = tempCacheAccepted;
             return pScriptHandle;
@@ -1294,6 +1329,41 @@ NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileConsumingCache(const V8Cont
 
 //-----------------------------------------------------------------------------
 
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileUpdatingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) noexcept
+{
+    if (cacheKind == V8CacheKind::None)
+    {
+        cacheResult = V8CacheResult::Disabled;
+        return V8Context_Compile(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code));
+    }
+
+    if (cacheBytes.empty())
+    {
+        auto pScriptHandle = V8Context_CompileProducingCache(handle, std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo, std::move(code), cacheKind, cacheBytes);
+        cacheResult = !cacheBytes.empty() ? V8CacheResult::Updated : V8CacheResult::UpdateFailed;
+        return pScriptHandle;
+    }
+
+    V8DocumentInfo documentInfo(std::move(resourceName), std::move(sourceMapUrl), uniqueId, documentKind, pvDocumentInfo);
+
+    auto spContext = handle.GetEntity();
+    if (!spContext.IsEmpty())
+    {
+        try
+        {
+            return new V8ScriptHandle(spContext->Compile(documentInfo, std::move(code), cacheKind, cacheBytes, cacheResult));
+        }
+        catch (const V8Exception& exception)
+        {
+            exception.ScheduleScriptEngineException();
+        }
+    }
+
+    return nullptr;
+}
+
+//-----------------------------------------------------------------------------
+
 NATIVE_ENTRY_POINT(void) V8Context_ExecuteScript(const V8ContextHandle& handle, const V8ScriptHandle& scriptHandle, StdBool evaluate, V8Value& result) noexcept
 {
     auto spContext = handle.GetEntity();

ClearScriptV8/V8SplitProxyNative.h

@@ -240,9 +240,10 @@ NATIVE_ENTRY_POINT(size_t) V8Isolate_GetMaxStackUsage(const V8IsolateHandle& han
 NATIVE_ENTRY_POINT(void) V8Isolate_SetMaxStackUsage(const V8IsolateHandle& handle, size_t size) noexcept;
 NATIVE_ENTRY_POINT(void) V8Isolate_AwaitDebuggerAndPause(const V8IsolateHandle& handle) noexcept;
 NATIVE_ENTRY_POINT(void) V8Isolate_CancelAwaitDebugger(const V8IsolateHandle& handle) noexcept;
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_Compile(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code) noexcept;
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileProducingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) noexcept;
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileConsumingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_Compile(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileProducingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileConsumingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Isolate_CompileUpdatingCache(const V8IsolateHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) noexcept;
 NATIVE_ENTRY_POINT(StdBool) V8Isolate_GetEnableInterruptPropagation(const V8IsolateHandle& handle) noexcept;
 NATIVE_ENTRY_POINT(void) V8Isolate_SetEnableInterruptPropagation(const V8IsolateHandle& handle, StdBool value) noexcept;
 NATIVE_ENTRY_POINT(StdBool) V8Isolate_GetDisableHeapSizeViolationInterrupt(const V8IsolateHandle& handle) noexcept;
@@ -268,10 +269,11 @@ NATIVE_ENTRY_POINT(void) V8Context_GetRootItem(const V8ContextHandle& handle, V8
 NATIVE_ENTRY_POINT(void) V8Context_AddGlobalItem(const V8ContextHandle& handle, const StdString& name, const V8Value& value, StdBool globalMembers) noexcept;
 NATIVE_ENTRY_POINT(void) V8Context_AwaitDebuggerAndPause(const V8ContextHandle& handle) noexcept;
 NATIVE_ENTRY_POINT(void) V8Context_CancelAwaitDebugger(const V8ContextHandle& handle) noexcept;
-NATIVE_ENTRY_POINT(void) V8Context_ExecuteCode(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, const StdString& code, StdBool evaluate, V8Value& result) noexcept;
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_Compile(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code) noexcept;
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileProducingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) noexcept;
-NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileConsumingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, StdBool isModule, void* pvDocumentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept;
+NATIVE_ENTRY_POINT(void) V8Context_ExecuteCode(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, const StdString& code, StdBool evaluate, V8Value& result) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_Compile(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileProducingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileConsumingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, const std::vector<uint8_t>& cacheBytes, StdBool& cacheAccepted) noexcept;
+NATIVE_ENTRY_POINT(V8ScriptHandle*) V8Context_CompileUpdatingCache(const V8ContextHandle& handle, StdString&& resourceName, StdString&& sourceMapUrl, uint64_t uniqueId, DocumentKind documentKind, void* pvDocumentInfo, StdString&& code, V8CacheKind cacheKind, std::vector<uint8_t>& cacheBytes, V8CacheResult& cacheResult) noexcept;
 NATIVE_ENTRY_POINT(void) V8Context_ExecuteScript(const V8ContextHandle& handle, const V8ScriptHandle& scriptHandle, StdBool evaluate, V8Value& result) noexcept;
 NATIVE_ENTRY_POINT(void) V8Context_Interrupt(const V8ContextHandle& handle) noexcept;
 NATIVE_ENTRY_POINT(void) V8Context_CancelInterrupt(const V8ContextHandle& handle) noexcept;

ClearScriptV8/win-arm64/ClearScriptV8.win-arm64.vcxproj

@@ -175,7 +175,7 @@
     <ClInclude Include="..\SharedPtr.h" />
     <ClInclude Include="..\StdString.h" />
     <ClInclude Include="..\Timer.h" />
-    <ClInclude Include="..\V8CacheType.h" />
+    <ClInclude Include="..\V8CacheTypes.h" />
     <ClInclude Include="..\V8Context.h" />
     <ClInclude Include="..\V8ContextImpl.h" />
     <ClInclude Include="..\V8DocumentInfo.h" />

ClearScriptV8/win-arm64/ClearScriptV8.win-arm64.vcxproj.filters

@@ -141,7 +141,7 @@
     <ClInclude Include="..\HighResolutionClock.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\V8CacheType.h">
+    <ClInclude Include="..\V8CacheTypes.h">
       <Filter>Header Files</Filter>
     </ClInclude>
     <ClInclude Include="..\V8DocumentInfo.h">

ClearScriptV8/win-x64/ClearScriptV8.win-x64.vcxproj

@@ -175,7 +175,7 @@
     <ClInclude Include="..\SharedPtr.h" />
     <ClInclude Include="..\StdString.h" />
     <ClInclude Include="..\Timer.h" />
-    <ClInclude Include="..\V8CacheType.h" />
+    <ClInclude Include="..\V8CacheTypes.h" />
     <ClInclude Include="..\V8Context.h" />
     <ClInclude Include="..\V8ContextImpl.h" />
     <ClInclude Include="..\V8DocumentInfo.h" />

ClearScriptV8/win-x64/ClearScriptV8.win-x64.vcxproj.filters

@@ -141,7 +141,7 @@
     <ClInclude Include="..\HighResolutionClock.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\V8CacheType.h">
+    <ClInclude Include="..\V8CacheTypes.h">
       <Filter>Header Files</Filter>
     </ClInclude>
     <ClInclude Include="..\V8DocumentInfo.h">

ClearScriptV8/win-x86/ClearScriptV8.win-x86.vcxproj

@@ -174,7 +174,7 @@
     <ClInclude Include="..\SharedPtr.h" />
     <ClInclude Include="..\StdString.h" />
     <ClInclude Include="..\Timer.h" />
-    <ClInclude Include="..\V8CacheType.h" />
+    <ClInclude Include="..\V8CacheTypes.h" />
     <ClInclude Include="..\V8Context.h" />
     <ClInclude Include="..\V8ContextImpl.h" />
     <ClInclude Include="..\V8DocumentInfo.h" />

ClearScriptV8/win-x86/ClearScriptV8.win-x86.vcxproj.filters

@@ -141,7 +141,7 @@
     <ClInclude Include="..\HighResolutionClock.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="..\V8CacheType.h">
+    <ClInclude Include="..\V8CacheTypes.h">
       <Filter>Header Files</Filter>
     </ClInclude>
     <ClInclude Include="..\V8DocumentInfo.h">

NetCore/ClearScript.Core/ClearScript.Core.csproj

@@ -56,6 +56,7 @@
         <Compile Include="..\..\ClearScript\DocumentContextCallback.cs" Link="DocumentContextCallback.cs" />
         <Compile Include="..\..\ClearScript\DocumentFlags.cs" Link="DocumentFlags.cs" />
         <Compile Include="..\..\ClearScript\DocumentInfo.cs" Link="DocumentInfo.cs" />
+        <Compile Include="..\..\ClearScript\DocumentKind.cs" Link="DocumentKind.cs" />
         <Compile Include="..\..\ClearScript\DocumentLoadCallback.cs" Link="DocumentLoadCallback.cs" />
         <Compile Include="..\..\ClearScript\DocumentLoader.cs" Link="DocumentLoader.cs" />
         <Compile Include="..\..\ClearScript\DocumentSettings.cs" Link="DocumentSettings.cs" />
@@ -101,6 +102,7 @@
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptExtensions.NetStandard.cs" Link="JavaScript\JavaScriptExtensions.NetStandard.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptObjectFlags.cs" Link="JavaScript\JavaScriptObjectFlags.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptObjectKind.cs" Link="JavaScript\JavaScriptObjectKind.cs" />
+        <Compile Include="..\..\ClearScript\JavaScript\JsonModuleManager.cs" Link="JavaScript\JsonModuleManager.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\ModuleCategory.cs" Link="JavaScript\ModuleCategory.cs" />
         <Compile Include="..\..\ClearScript\NoDefaultScriptAccessAttribute.cs" Link="NoDefaultScriptAccessAttribute.cs" />
         <Compile Include="..\..\ClearScript\NoScriptAccessAttribute.cs" Link="NoScriptAccessAttribute.cs" />
@@ -145,7 +147,8 @@
         <Compile Include="..\..\ClearScript\Util\Holder.cs" Link="Util\Holder.cs" />
         <Compile Include="..\..\ClearScript\Util\IDynamic.cs" Link="Util\IDynamic.cs" />
         <Compile Include="..\..\ClearScript\Util\IExpando.cs" Link="Util\IExpando.cs" />
-        <Compile Include="..\..\ClearScript\Util\IHostInvokeContext.cs" Link="Util\IHostInvokeContext.cs" />
+        <Compile Include="..\..\ClearScript\Util\IHostContext.cs" Link="Util\IHostContext.cs" />
+        <Compile Include="..\..\ClearScript\Util\IHostTargetContext.cs" Link="Util\IHostTargetContext.cs" />
         <Compile Include="..\..\ClearScript\Util\INativeCallback.cs" Link="Util\INativeCallback.cs" />
         <Compile Include="..\..\ClearScript\Util\InvokeHelpers.cs" Link="Util\InvokeHelpers.cs" />
         <Compile Include="..\..\ClearScript\Util\IScriptMarshalWrapper.cs" Link="Util\IScriptMarshalWrapper.cs" />

NetCore/ClearScript.V8/ClearScript.V8.csproj

@@ -57,6 +57,7 @@
         <Compile Include="..\..\ClearScript\V8\V8ArrayBufferOrViewInfo.cs" Link="V8\V8ArrayBufferOrViewInfo.cs" />
         <Compile Include="..\..\ClearScript\V8\V8ArrayBufferOrViewKind.cs" Link="V8\V8ArrayBufferOrViewKind.cs" />
         <Compile Include="..\..\ClearScript\V8\V8CacheKind.cs" Link="V8\V8CacheKind.cs" />
+        <Compile Include="..\..\ClearScript\V8\V8CacheResult.cs" Link="V8\V8CacheResult.cs" />
         <Compile Include="..\..\ClearScript\V8\V8ContextProxy.cs" Link="V8\V8ContextProxy.cs" />
         <Compile Include="..\..\ClearScript\V8\V8CpuProfile.cs" Link="V8\V8CpuProfile.cs" />
         <Compile Include="..\..\ClearScript\V8\V8CpuProfileFlags.cs" Link="V8\V8CpuProfileFlags.cs" />
@@ -70,6 +71,7 @@
         <Compile Include="..\..\ClearScript\V8\V8ProxyHelpers.cs" Link="V8\V8ProxyHelpers.cs" />
         <Compile Include="..\..\ClearScript\V8\V8Runtime.cs" Link="V8\V8Runtime.cs" />
         <Compile Include="..\..\ClearScript\V8\V8RuntimeConstraints.cs" Link="V8\V8RuntimeConstraints.cs" />
+        <Compile Include="..\..\ClearScript\V8\V8RuntimeDebuggerEventArgs.cs" Link="V8\V8RuntimeDebuggerEventArgs.cs" />
         <Compile Include="..\..\ClearScript\V8\V8RuntimeFlags.cs" Link="V8\V8RuntimeFlags.cs" />
         <Compile Include="..\..\ClearScript\V8\V8RuntimeHeapInfo.cs" Link="V8\V8RuntimeHeapInfo.cs" />
         <Compile Include="..\..\ClearScript\V8\V8Script.cs" Link="V8\V8Script.cs" />

NetCore/ClearScriptConsole/ClearScriptConsole.csproj

@@ -23,7 +23,6 @@
         <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
         <OutputPath>..\..\bin\Debug</OutputPath>
         <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-        <PlatformTarget>x86</PlatformTarget>
     </PropertyGroup>
 
     <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
@@ -31,7 +30,6 @@
         <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
         <OutputPath>..\..\bin\Release</OutputPath>
         <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-        <PlatformTarget>x86</PlatformTarget>
     </PropertyGroup>
 
     <ItemGroup>

NetCore/ClearScriptTest/ClearScriptTest.csproj

@@ -178,6 +178,15 @@
         <None Include="..\..\ClearScriptTest\JavaScript\General.js" Link="JavaScript\General.js">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </None>
+        <None Include="..\..\ClearScriptTest\JavaScript\Object.json" Link="JavaScript\Object.json">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </None>
+        <None Include="..\..\ClearScriptTest\JavaScript\Array.json" Link="JavaScript\Array.json">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </None>
+        <None Include="..\..\ClearScriptTest\JavaScript\Malformed.json" Link="JavaScript\Malformed.json">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </None>
         <None Include="..\..\ClearScriptTest\JavaScript\LegacyCommonJS\Arithmetic\Arithmetic.js" Link="JavaScript\LegacyCommonJS\Arithmetic\Arithmetic.js">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </None>

NetFramework/ClearScript.Core/ClearScript.Core.csproj

@@ -57,6 +57,7 @@
         <Compile Include="..\..\ClearScript\DocumentContextCallback.cs" Link="DocumentContextCallback.cs" />
         <Compile Include="..\..\ClearScript\DocumentFlags.cs" Link="DocumentFlags.cs" />
         <Compile Include="..\..\ClearScript\DocumentInfo.cs" Link="DocumentInfo.cs" />
+        <Compile Include="..\..\ClearScript\DocumentKind.cs" Link="DocumentKind.cs" />
         <Compile Include="..\..\ClearScript\DocumentLoadCallback.cs" Link="DocumentLoadCallback.cs" />
         <Compile Include="..\..\ClearScript\DocumentLoader.cs" Link="DocumentLoader.cs" />
         <Compile Include="..\..\ClearScript\DocumentSettings.cs" Link="DocumentSettings.cs" />
@@ -100,6 +101,7 @@
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptExtensions.cs" Link="JavaScript\JavaScriptExtensions.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptObjectFlags.cs" Link="JavaScript\JavaScriptObjectFlags.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptObjectKind.cs" Link="JavaScript\JavaScriptObjectKind.cs" />
+        <Compile Include="..\..\ClearScript\JavaScript\JsonModuleManager.cs" Link="JavaScript\JsonModuleManager.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\ModuleCategory.cs" Link="JavaScript\ModuleCategory.cs" />
         <Compile Include="..\..\ClearScript\NoDefaultScriptAccessAttribute.cs" Link="NoDefaultScriptAccessAttribute.cs" />
         <Compile Include="..\..\ClearScript\NoScriptAccessAttribute.cs" Link="NoScriptAccessAttribute.cs" />
@@ -147,7 +149,8 @@
         <Compile Include="..\..\ClearScript\Util\EnumerableHelpers.NetFramework.cs" Link="Util\EnumerableHelpers.NetFramework.cs" />
         <Compile Include="..\..\ClearScript\Util\Holder.cs" Link="Util\Holder.cs" />
         <Compile Include="..\..\ClearScript\Util\IDynamic.cs" Link="Util\IDynamic.cs" />
-        <Compile Include="..\..\ClearScript\Util\IHostInvokeContext.cs" Link="Util\IHostInvokeContext.cs" />
+        <Compile Include="..\..\ClearScript\Util\IHostContext.cs" Link="Util\IHostContext.cs" />
+        <Compile Include="..\..\ClearScript\Util\IHostTargetContext.cs" Link="Util\IHostTargetContext.cs" />
         <Compile Include="..\..\ClearScript\Util\INativeCallback.cs" Link="Util\INativeCallback.cs" />
         <Compile Include="..\..\ClearScript\Util\InvokeHelpers.cs" Link="Util\InvokeHelpers.cs" />
         <Compile Include="..\..\ClearScript\Util\IScriptMarshalWrapper.cs" Link="Util\IScriptMarshalWrapper.cs" />

NetFramework/ClearScript.V8/ClearScript.V8.csproj

@@ -62,6 +62,7 @@
         <Compile Include="..\..\ClearScript\V8\V8ArrayBufferOrViewInfo.cs" Link="V8\V8ArrayBufferOrViewInfo.cs" />
         <Compile Include="..\..\ClearScript\V8\V8ArrayBufferOrViewKind.cs" Link="V8\V8ArrayBufferOrViewKind.cs" />
         <Compile Include="..\..\ClearScript\V8\V8CacheKind.cs" Link="V8\V8CacheKind.cs" />
+        <Compile Include="..\..\ClearScript\V8\V8CacheResult.cs" Link="V8\V8CacheResult.cs" />
         <Compile Include="..\..\ClearScript\V8\V8ContextProxy.cs" Link="V8\V8ContextProxy.cs" />
         <Compile Include="..\..\ClearScript\V8\V8CpuProfile.cs" Link="V8\V8CpuProfile.cs" />
         <Compile Include="..\..\ClearScript\V8\V8CpuProfileFlags.cs" Link="V8\V8CpuProfileFlags.cs" />
@@ -75,6 +76,7 @@
         <Compile Include="..\..\ClearScript\V8\V8ProxyHelpers.cs" Link="V8\V8ProxyHelpers.cs" />
         <Compile Include="..\..\ClearScript\V8\V8Runtime.cs" Link="V8\V8Runtime.cs" />
         <Compile Include="..\..\ClearScript\V8\V8RuntimeConstraints.cs" Link="V8\V8RuntimeConstraints.cs" />
+        <Compile Include="..\..\ClearScript\V8\V8RuntimeDebuggerEventArgs.cs" Link="V8\V8RuntimeDebuggerEventArgs.cs" />
         <Compile Include="..\..\ClearScript\V8\V8RuntimeFlags.cs" Link="V8\V8RuntimeFlags.cs" />
         <Compile Include="..\..\ClearScript\V8\V8RuntimeHeapInfo.cs" Link="V8\V8RuntimeHeapInfo.cs" />
         <Compile Include="..\..\ClearScript\V8\V8Script.cs" Link="V8\V8Script.cs" />

NetFramework/ClearScriptTest/ClearScriptTest.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
     <PropertyGroup>
         <TargetFramework>net471</TargetFramework>
@@ -169,6 +169,15 @@
         <None Include="..\..\ClearScriptTest\JavaScript\General.js" Link="JavaScript\General.js">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </None>
+        <None Include="..\..\ClearScriptTest\JavaScript\Object.json" Link="JavaScript\Object.json">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </None>
+        <None Include="..\..\ClearScriptTest\JavaScript\Array.json" Link="JavaScript\Array.json">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </None>
+        <None Include="..\..\ClearScriptTest\JavaScript\Malformed.json" Link="JavaScript\Malformed.json">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </None>
         <None Include="..\..\ClearScriptTest\JavaScript\LegacyCommonJS\Arithmetic\Arithmetic.js" Link="JavaScript\LegacyCommonJS\Arithmetic\Arithmetic.js">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </None>

NetStandard/ClearScript.Core/ClearScript.Core.csproj

@@ -55,6 +55,7 @@
         <Compile Include="..\..\ClearScript\DocumentContextCallback.cs" Link="DocumentContextCallback.cs" />
         <Compile Include="..\..\ClearScript\DocumentFlags.cs" Link="DocumentFlags.cs" />
         <Compile Include="..\..\ClearScript\DocumentInfo.cs" Link="DocumentInfo.cs" />
+        <Compile Include="..\..\ClearScript\DocumentKind.cs" Link="DocumentKind.cs" />
         <Compile Include="..\..\ClearScript\DocumentLoadCallback.cs" Link="DocumentLoadCallback.cs" />
         <Compile Include="..\..\ClearScript\DocumentLoader.cs" Link="DocumentLoader.cs" />
         <Compile Include="..\..\ClearScript\DocumentSettings.cs" Link="DocumentSettings.cs" />
@@ -100,6 +101,7 @@
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptExtensions.NetStandard.cs" Link="JavaScript\JavaScriptExtensions.NetStandard.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptObjectFlags.cs" Link="JavaScript\JavaScriptObjectFlags.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\JavaScriptObjectKind.cs" Link="JavaScript\JavaScriptObjectKind.cs" />
+        <Compile Include="..\..\ClearScript\JavaScript\JsonModuleManager.cs" Link="JavaScript\JsonModuleManager.cs" />
         <Compile Include="..\..\ClearScript\JavaScript\ModuleCategory.cs" Link="JavaScript\ModuleCategory.cs" />
         <Compile Include="..\..\ClearScript\NoDefaultScriptAccessAttribute.cs" Link="NoDefaultScriptAccessAttribute.cs" />
         <Compile Include="..\..\ClearScript\NoScriptAccessAttribute.cs" Link="NoScriptAccessAttribute.cs" />
@@ -144,7 +146,8 @@
         <Compile Include="..\..\ClearScript\Util\Holder.cs" Link="Util\Holder.cs" />
         <Compile Include="..\..\ClearScript\Util\IDynamic.cs" Link="Util\IDynamic.cs" />
         <Compile Include="..\..\ClearScript\Util\IExpando.cs" Link="Util\IExpando.cs" />
-        <Compile Include="..\..\ClearScript\Util\IHostInvokeContext.cs" Link="Util\IHostInvokeContext.cs" />
+        <Compile Include="..\..\ClearScript\Util\IHostContext.cs" Link="Util\IHostContext.cs" />
+        <Compile Include="..\..\ClearScript\Util\IHostTargetContext.cs" Link="Util\IHostTargetContext.cs" />
         <Compile Include="..\..\ClearScript\Util\INativeCallback.cs" Link="Util\INativeCallback.cs" />
         <Compile Include="..\..\ClearScript\Util\InvokeHelpers.cs" Link="Util\InvokeHelpers.cs" />
         <Compile Include="..\..\ClearScript\Util\IScriptMarshalWrapper.cs" Link="Util\IScriptMarshalWrapper.cs" />