зеркало из https://github.com/mono/ikvm-fork.git
1452 строки
38 KiB
C#
1452 строки
38 KiB
C#
/*
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Copyright (C) 2002-2011 Jeroen Frijters
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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Jeroen Frijters
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jeroen@frijters.net
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*/
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using System;
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#if STATIC_COMPILER || STUB_GENERATOR
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using IKVM.Reflection;
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using IKVM.Reflection.Emit;
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using Type = IKVM.Reflection.Type;
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#else
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using System.Reflection;
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using System.Reflection.Emit;
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#endif
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using System.IO;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Threading;
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using System.Runtime.CompilerServices;
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using IKVM.Attributes;
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namespace IKVM.Internal
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{
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[Flags]
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enum CodeGenOptions
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{
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None = 0,
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Debug = 1,
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NoStackTraceInfo = 2,
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StrictFinalFieldSemantics = 4,
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NoJNI = 8,
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RemoveAsserts = 16,
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NoAutomagicSerialization = 32,
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}
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#if !STUB_GENERATOR
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abstract class TypeWrapperFactory
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{
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internal abstract ModuleBuilder ModuleBuilder { get; }
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internal abstract TypeWrapper DefineClassImpl(Dictionary<string, TypeWrapper> types, ClassFile f, ClassLoaderWrapper classLoader, object protectionDomain);
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internal abstract bool ReserveName(string name);
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internal abstract string AllocMangledName(DynamicTypeWrapper tw);
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internal abstract Type DefineUnloadable(string name);
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#if CLASSGC
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internal abstract void AddInternalsVisibleTo(Assembly friend);
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#endif
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}
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#endif // !STUB_GENERATOR
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class ClassLoaderWrapper
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{
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private static readonly object wrapperLock = new object();
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private static readonly Dictionary<Type, TypeWrapper> globalTypeToTypeWrapper = new Dictionary<Type, TypeWrapper>();
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#if STATIC_COMPILER || STUB_GENERATOR
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private static ClassLoaderWrapper bootstrapClassLoader;
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#else
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private static AssemblyClassLoader bootstrapClassLoader;
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#endif
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private static List<GenericClassLoader> genericClassLoaders;
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#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
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protected java.lang.ClassLoader javaClassLoader;
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#endif
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#if !STUB_GENERATOR
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private TypeWrapperFactory factory;
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#endif // !STUB_GENERATOR
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private Dictionary<string, TypeWrapper> types = new Dictionary<string, TypeWrapper>();
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private readonly Dictionary<string, Thread> defineClassInProgress = new Dictionary<string, Thread>();
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private List<IntPtr> nativeLibraries;
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private CodeGenOptions codegenoptions;
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#if CLASSGC
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private Dictionary<Type, TypeWrapper> typeToTypeWrapper;
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private static ConditionalWeakTable<Assembly, ClassLoaderWrapper> dynamicAssemblies;
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#endif
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private static Dictionary<Type, string> remappedTypes = new Dictionary<Type, string>();
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#if STATIC_COMPILER || STUB_GENERATOR
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// HACK this is used by the ahead-of-time compiler to overrule the bootstrap classloader
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// when we're compiling the core class libraries and by ikvmstub with the -bootstrap option
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internal static void SetBootstrapClassLoader(ClassLoaderWrapper bootstrapClassLoader)
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{
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Debug.Assert(ClassLoaderWrapper.bootstrapClassLoader == null);
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ClassLoaderWrapper.bootstrapClassLoader = bootstrapClassLoader;
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}
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#endif
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static ClassLoaderWrapper()
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{
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.BOOLEAN.TypeAsTBD] = PrimitiveTypeWrapper.BOOLEAN;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.BYTE.TypeAsTBD] = PrimitiveTypeWrapper.BYTE;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.CHAR.TypeAsTBD] = PrimitiveTypeWrapper.CHAR;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.DOUBLE.TypeAsTBD] = PrimitiveTypeWrapper.DOUBLE;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.FLOAT.TypeAsTBD] = PrimitiveTypeWrapper.FLOAT;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.INT.TypeAsTBD] = PrimitiveTypeWrapper.INT;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.LONG.TypeAsTBD] = PrimitiveTypeWrapper.LONG;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.SHORT.TypeAsTBD] = PrimitiveTypeWrapper.SHORT;
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globalTypeToTypeWrapper[PrimitiveTypeWrapper.VOID.TypeAsTBD] = PrimitiveTypeWrapper.VOID;
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LoadRemappedTypes();
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}
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internal static void LoadRemappedTypes()
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{
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// if we're compiling the core, coreAssembly will be null
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Assembly coreAssembly = JVM.CoreAssembly;
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if(coreAssembly != null && remappedTypes.Count ==0)
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{
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RemappedClassAttribute[] remapped = AttributeHelper.GetRemappedClasses(coreAssembly);
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if(remapped.Length > 0)
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{
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foreach(RemappedClassAttribute r in remapped)
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{
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remappedTypes.Add(r.RemappedType, r.Name);
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}
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}
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else
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{
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#if STATIC_COMPILER
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throw new FatalCompilerErrorException(Message.CoreClassesMissing);
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#else
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JVM.CriticalFailure("Failed to find core classes in core library", null);
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#endif
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}
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}
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}
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internal ClassLoaderWrapper(CodeGenOptions codegenoptions, object javaClassLoader)
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{
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this.codegenoptions = codegenoptions;
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#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
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this.javaClassLoader = (java.lang.ClassLoader)javaClassLoader;
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#endif
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}
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internal static bool IsRemappedType(Type type)
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{
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return remappedTypes.ContainsKey(type);
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}
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#if STATIC_COMPILER || STUB_GENERATOR
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internal void SetRemappedType(Type type, TypeWrapper tw)
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{
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lock(types)
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{
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types.Add(tw.Name, tw);
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}
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lock(globalTypeToTypeWrapper)
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{
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globalTypeToTypeWrapper.Add(type, tw);
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}
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remappedTypes.Add(type, tw.Name);
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}
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#endif
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// return the TypeWrapper if it is already loaded, this exists for DynamicTypeWrapper.SetupGhosts
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// and ClassLoader.findLoadedClass()
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internal virtual TypeWrapper GetLoadedClass(string name)
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{
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lock(types)
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{
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TypeWrapper tw;
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types.TryGetValue(name, out tw);
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return tw;
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}
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}
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internal TypeWrapper RegisterInitiatingLoader(TypeWrapper tw)
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{
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Debug.Assert(tw != null);
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Debug.Assert(!tw.IsUnloadable);
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Debug.Assert(!tw.IsPrimitive);
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try
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{
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// critical code in the finally block to avoid Thread.Abort interrupting the thread
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}
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finally
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{
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tw = RegisterInitiatingLoaderCritical(tw);
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}
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return tw;
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}
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private TypeWrapper RegisterInitiatingLoaderCritical(TypeWrapper tw)
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{
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lock(types)
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{
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TypeWrapper existing;
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types.TryGetValue(tw.Name, out existing);
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if(existing != tw)
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{
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if(existing != null)
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{
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// another thread beat us to it, discard the new TypeWrapper and
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// return the previous one
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return existing;
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}
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// NOTE if types.ContainsKey(tw.Name) is true (i.e. the value is null),
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// we currently have a DefineClass in progress on another thread and we've
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// beaten that thread to the punch by loading the class from a parent class
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// loader instead. This is ok as DefineClass will throw a LinkageError when
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// it is done.
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types[tw.Name] = tw;
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}
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}
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return tw;
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}
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internal bool EmitDebugInfo
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{
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get
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{
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return (codegenoptions & CodeGenOptions.Debug) != 0;
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}
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}
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internal bool EmitStackTraceInfo
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{
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get
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{
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// NOTE we're negating the flag here!
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return (codegenoptions & CodeGenOptions.NoStackTraceInfo) == 0;
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}
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}
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internal bool StrictFinalFieldSemantics
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{
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get
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{
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return (codegenoptions & CodeGenOptions.StrictFinalFieldSemantics) != 0;
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}
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}
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internal bool NoJNI
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{
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get
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{
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return (codegenoptions & CodeGenOptions.NoJNI) != 0;
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}
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}
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internal bool RemoveAsserts
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{
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get
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{
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return (codegenoptions & CodeGenOptions.RemoveAsserts) != 0;
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}
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}
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internal bool NoAutomagicSerialization
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{
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get
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{
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return (codegenoptions & CodeGenOptions.NoAutomagicSerialization) != 0;
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}
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}
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#if !STATIC_COMPILER && !STUB_GENERATOR
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internal bool RelaxedClassNameValidation
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{
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get
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{
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#if FIRST_PASS
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return true;
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#else
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return JVM.relaxedVerification && (javaClassLoader == null || java.lang.ClassLoader.isTrustedLoader(javaClassLoader));
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#endif
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}
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}
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#endif // !STATIC_COMPILER && !STUB_GENERATOR
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protected virtual void CheckDefineClassAllowed(string className)
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{
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// this hook exists so that AssemblyClassLoader can prevent DefineClass when the name is already present in the assembly
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}
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#if !STUB_GENERATOR
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internal TypeWrapper DefineClass(ClassFile f, object protectionDomain)
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{
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string dotnetAssembly = f.IKVMAssemblyAttribute;
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if(dotnetAssembly != null)
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{
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// It's a stub class generated by ikvmstub (or generated by the runtime when getResource was
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// called on a statically compiled class).
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ClassLoaderWrapper loader;
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try
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{
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loader = ClassLoaderWrapper.GetAssemblyClassLoaderByName(dotnetAssembly);
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}
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catch(Exception x)
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{
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// TODO don't catch all exceptions here
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throw new NoClassDefFoundError(f.Name + " (" + x.Message + ")");
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}
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TypeWrapper tw = loader.LoadClassByDottedNameFast(f.Name);
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if(tw == null)
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{
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throw new NoClassDefFoundError(f.Name + " (type not found in " + dotnetAssembly + ")");
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}
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return RegisterInitiatingLoader(tw);
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}
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CheckDefineClassAllowed(f.Name);
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TypeWrapper def;
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try
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{
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// critical code in the finally block to avoid Thread.Abort interrupting the thread
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}
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finally
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{
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def = DefineClassCritical(f, protectionDomain);
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}
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return def;
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}
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private TypeWrapper DefineClassCritical(ClassFile f, object protectionDomain)
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{
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lock(types)
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{
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if(types.ContainsKey(f.Name))
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{
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throw new LinkageError("duplicate class definition: " + f.Name);
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}
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// mark the type as "loading in progress", so that we can detect circular dependencies.
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types.Add(f.Name, null);
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defineClassInProgress.Add(f.Name, Thread.CurrentThread);
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}
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try
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{
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return GetTypeWrapperFactory().DefineClassImpl(types, f, this, protectionDomain);
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}
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finally
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{
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lock(types)
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{
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if(types[f.Name] == null)
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{
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// if loading the class fails, we remove the indicator that we're busy loading the class,
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// because otherwise we get a ClassCircularityError if we try to load the class again.
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types.Remove(f.Name);
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}
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defineClassInProgress.Remove(f.Name);
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Monitor.PulseAll(types);
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}
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}
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}
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internal TypeWrapperFactory GetTypeWrapperFactory()
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{
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if(factory == null)
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{
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lock(this)
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{
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try
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{
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// critical code in the finally block to avoid Thread.Abort interrupting the thread
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}
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finally
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{
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if(factory == null)
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{
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#if CLASSGC
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if(dynamicAssemblies == null)
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{
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Interlocked.CompareExchange(ref dynamicAssemblies, new ConditionalWeakTable<Assembly, ClassLoaderWrapper>(), null);
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}
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typeToTypeWrapper = new Dictionary<Type, TypeWrapper>();
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DynamicClassLoader instance = DynamicClassLoader.Get(this);
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dynamicAssemblies.Add(instance.ModuleBuilder.Assembly.ManifestModule.Assembly, this);
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this.factory = instance;
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#else
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factory = DynamicClassLoader.Get(this);
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#endif
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}
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}
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}
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}
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return factory;
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}
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#endif // !STUB_GENERATOR
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internal TypeWrapper LoadClassByDottedName(string name)
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{
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TypeWrapper type = LoadClassByDottedNameFastImpl(name, true);
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if(type != null)
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{
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return RegisterInitiatingLoader(type);
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}
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throw new ClassNotFoundException(name);
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}
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internal TypeWrapper LoadClassByDottedNameFast(string name)
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{
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TypeWrapper type = LoadClassByDottedNameFastImpl(name, false);
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if(type != null)
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{
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return RegisterInitiatingLoader(type);
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}
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return null;
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}
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private TypeWrapper LoadClassByDottedNameFastImpl(string name, bool throwClassNotFoundException)
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{
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Profiler.Enter("LoadClassByDottedName");
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try
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{
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TypeWrapper type;
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lock(types)
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{
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if(types.TryGetValue(name, out type) && type == null)
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{
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Thread defineThread;
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if(defineClassInProgress.TryGetValue(name, out defineThread))
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{
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if(Thread.CurrentThread == defineThread)
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{
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throw new ClassCircularityError(name);
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}
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// the requested class is currently being defined by another thread,
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// so we have to wait on that
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while(defineClassInProgress.ContainsKey(name))
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{
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Monitor.Wait(types);
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}
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// the defineClass may have failed, so we need to use TryGetValue
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types.TryGetValue(name, out type);
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}
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}
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}
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if(type != null)
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{
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return type;
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}
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if(name.Length > 1 && name[0] == '[')
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{
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return LoadArrayClass(name);
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}
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return LoadClassImpl(name, throwClassNotFoundException);
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}
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finally
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{
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Profiler.Leave("LoadClassByDottedName");
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}
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}
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private TypeWrapper LoadArrayClass(string name)
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{
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int dims = 1;
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while(name[dims] == '[')
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{
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dims++;
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if(dims == name.Length)
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{
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// malformed class name
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return null;
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}
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}
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if(name[dims] == 'L')
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{
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if(!name.EndsWith(";") || name.Length <= dims + 2 || name[dims + 1] == '[')
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{
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// malformed class name
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return null;
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}
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string elemClass = name.Substring(dims + 1, name.Length - dims - 2);
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// NOTE it's important that we're registered as the initiating loader
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// for the element type here
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TypeWrapper type = LoadClassByDottedNameFast(elemClass);
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if(type != null)
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{
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type = type.GetClassLoader().CreateArrayType(name, type, dims);
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}
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return type;
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}
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if(name.Length != dims + 1)
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{
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// malformed class name
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return null;
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}
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switch(name[dims])
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{
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case 'B':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.BYTE, dims);
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case 'C':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.CHAR, dims);
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case 'D':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.DOUBLE, dims);
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case 'F':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.FLOAT, dims);
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case 'I':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.INT, dims);
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case 'J':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.LONG, dims);
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case 'S':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.SHORT, dims);
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case 'Z':
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return GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.BOOLEAN, dims);
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default:
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return null;
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}
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}
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internal TypeWrapper LoadGenericClass(string name)
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{
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// we need to handle delegate methods here (for generic delegates)
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// (note that other types with manufactured inner classes such as Attribute and Enum can't be generic)
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if (name.EndsWith(DotNetTypeWrapper.DelegateInterfaceSuffix))
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{
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TypeWrapper outer = LoadGenericClass(name.Substring(0, name.Length - DotNetTypeWrapper.DelegateInterfaceSuffix.Length));
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if (outer != null && outer.IsFakeTypeContainer)
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{
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foreach (TypeWrapper tw in outer.InnerClasses)
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{
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if (tw.Name == name)
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{
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return tw;
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}
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}
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}
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}
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// generic class name grammar:
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//
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// mangled(open_generic_type_name) "_$$$_" M(parameter_class_name) ( "_$$_" M(parameter_class_name) )* "_$$$$_"
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//
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// mangled() is the normal name mangling algorithm
|
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// M() is a replacement of "__" with "$$005F$$005F" followed by a replace of "." with "__"
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//
|
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int pos = name.IndexOf("_$$$_");
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if(pos <= 0 || !name.EndsWith("_$$$$_"))
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{
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return null;
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}
|
|
Type type = GetGenericTypeDefinition(DotNetTypeWrapper.DemangleTypeName(name.Substring(0, pos)));
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if(type == null)
|
|
{
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return null;
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}
|
|
List<string> typeParamNames = new List<string>();
|
|
pos += 5;
|
|
int start = pos;
|
|
int nest = 0;
|
|
for(;;)
|
|
{
|
|
pos = name.IndexOf("_$$", pos);
|
|
if(pos == -1)
|
|
{
|
|
return null;
|
|
}
|
|
if(name.IndexOf("_$$_", pos, 4) == pos)
|
|
{
|
|
if(nest == 0)
|
|
{
|
|
typeParamNames.Add(name.Substring(start, pos - start));
|
|
start = pos + 4;
|
|
}
|
|
pos += 4;
|
|
}
|
|
else if(name.IndexOf("_$$$_", pos, 5) == pos)
|
|
{
|
|
nest++;
|
|
pos += 5;
|
|
}
|
|
else if(name.IndexOf("_$$$$_", pos, 6) == pos)
|
|
{
|
|
if(nest == 0)
|
|
{
|
|
if(pos + 6 != name.Length)
|
|
{
|
|
return null;
|
|
}
|
|
typeParamNames.Add(name.Substring(start, pos - start));
|
|
break;
|
|
}
|
|
nest--;
|
|
pos += 6;
|
|
}
|
|
else
|
|
{
|
|
pos += 3;
|
|
}
|
|
}
|
|
Type[] typeArguments = new Type[typeParamNames.Count];
|
|
for(int i = 0; i < typeArguments.Length; i++)
|
|
{
|
|
string s = (string)typeParamNames[i];
|
|
// only do the unmangling for non-generic types (because we don't want to convert
|
|
// the double underscores in two adjacent _$$$_ or _$$$$_ markers)
|
|
if(s.IndexOf("_$$$_") == -1)
|
|
{
|
|
s = s.Replace("__", ".");
|
|
s = s.Replace("$$005F$$005F", "__");
|
|
}
|
|
int dims = 0;
|
|
while(s.Length > dims && s[dims] == 'A')
|
|
{
|
|
dims++;
|
|
}
|
|
if(s.Length == dims)
|
|
{
|
|
return null;
|
|
}
|
|
TypeWrapper tw;
|
|
switch(s[dims])
|
|
{
|
|
case 'L':
|
|
tw = LoadClassByDottedNameFast(s.Substring(dims + 1));
|
|
if(tw == null)
|
|
{
|
|
return null;
|
|
}
|
|
tw.Finish();
|
|
break;
|
|
case 'Z':
|
|
tw = PrimitiveTypeWrapper.BOOLEAN;
|
|
break;
|
|
case 'B':
|
|
tw = PrimitiveTypeWrapper.BYTE;
|
|
break;
|
|
case 'S':
|
|
tw = PrimitiveTypeWrapper.SHORT;
|
|
break;
|
|
case 'C':
|
|
tw = PrimitiveTypeWrapper.CHAR;
|
|
break;
|
|
case 'I':
|
|
tw = PrimitiveTypeWrapper.INT;
|
|
break;
|
|
case 'F':
|
|
tw = PrimitiveTypeWrapper.FLOAT;
|
|
break;
|
|
case 'J':
|
|
tw = PrimitiveTypeWrapper.LONG;
|
|
break;
|
|
case 'D':
|
|
tw = PrimitiveTypeWrapper.DOUBLE;
|
|
break;
|
|
default:
|
|
return null;
|
|
}
|
|
if(dims > 0)
|
|
{
|
|
tw = tw.MakeArrayType(dims);
|
|
}
|
|
typeArguments[i] = tw.TypeAsSignatureType;
|
|
}
|
|
try
|
|
{
|
|
type = type.MakeGenericType(typeArguments);
|
|
}
|
|
catch(ArgumentException)
|
|
{
|
|
// one of the typeArguments failed to meet the constraints
|
|
return null;
|
|
}
|
|
TypeWrapper wrapper = GetWrapperFromType(type);
|
|
if(wrapper != null && wrapper.Name != name)
|
|
{
|
|
// the name specified was not in canonical form
|
|
return null;
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
protected virtual TypeWrapper LoadClassImpl(string name, bool throwClassNotFoundException)
|
|
{
|
|
TypeWrapper tw = LoadGenericClass(name);
|
|
if(tw != null)
|
|
{
|
|
return tw;
|
|
}
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
Profiler.Enter("ClassLoader.loadClass");
|
|
try
|
|
{
|
|
java.lang.Class c = ((java.lang.ClassLoader)GetJavaClassLoader()).loadClassInternal(name);
|
|
if(c == null)
|
|
{
|
|
return null;
|
|
}
|
|
TypeWrapper type = TypeWrapper.FromClass(c);
|
|
if(type.Name != name)
|
|
{
|
|
// the class loader is trying to trick us
|
|
return null;
|
|
}
|
|
return type;
|
|
}
|
|
catch(java.lang.ClassNotFoundException x)
|
|
{
|
|
if(throwClassNotFoundException)
|
|
{
|
|
throw new ClassLoadingException(ikvm.runtime.Util.mapException(x));
|
|
}
|
|
return null;
|
|
}
|
|
catch(Exception x)
|
|
{
|
|
throw new ClassLoadingException(ikvm.runtime.Util.mapException(x));
|
|
}
|
|
finally
|
|
{
|
|
Profiler.Leave("ClassLoader.loadClass");
|
|
}
|
|
#else
|
|
return null;
|
|
#endif
|
|
}
|
|
|
|
private TypeWrapper CreateArrayType(string name, TypeWrapper elementTypeWrapper, int dims)
|
|
{
|
|
Debug.Assert(new String('[', dims) + elementTypeWrapper.SigName == name);
|
|
Debug.Assert(!elementTypeWrapper.IsUnloadable && !elementTypeWrapper.IsVerifierType && !elementTypeWrapper.IsArray);
|
|
Debug.Assert(dims >= 1);
|
|
return RegisterInitiatingLoader(new ArrayTypeWrapper(elementTypeWrapper, name));
|
|
}
|
|
|
|
internal virtual object GetJavaClassLoader()
|
|
{
|
|
#if FIRST_PASS || STATIC_COMPILER || STUB_GENERATOR
|
|
return null;
|
|
#else
|
|
return javaClassLoader;
|
|
#endif
|
|
}
|
|
|
|
internal TypeWrapper ExpressionTypeWrapper(string type)
|
|
{
|
|
Debug.Assert(!type.StartsWith("Lret;"));
|
|
Debug.Assert(type != "Lnull");
|
|
|
|
int index = 0;
|
|
return SigDecoderWrapper(ref index, type, false);
|
|
}
|
|
|
|
// NOTE this exposes potentially unfinished types
|
|
internal Type[] ArgTypeListFromSig(string sig)
|
|
{
|
|
if(sig[1] == ')')
|
|
{
|
|
return Type.EmptyTypes;
|
|
}
|
|
TypeWrapper[] wrappers = ArgTypeWrapperListFromSig(sig);
|
|
Type[] types = new Type[wrappers.Length];
|
|
for(int i = 0; i < wrappers.Length; i++)
|
|
{
|
|
types[i] = wrappers[i].TypeAsSignatureType;
|
|
}
|
|
return types;
|
|
}
|
|
|
|
private TypeWrapper SigDecoderLoadClass(string name, bool nothrow)
|
|
{
|
|
return nothrow ? LoadClassNoThrow(this, name) : LoadClassByDottedName(name);
|
|
}
|
|
|
|
// NOTE: this will ignore anything following the sig marker (so that it can be used to decode method signatures)
|
|
private TypeWrapper SigDecoderWrapper(ref int index, string sig, bool nothrow)
|
|
{
|
|
switch(sig[index++])
|
|
{
|
|
case 'B':
|
|
return PrimitiveTypeWrapper.BYTE;
|
|
case 'C':
|
|
return PrimitiveTypeWrapper.CHAR;
|
|
case 'D':
|
|
return PrimitiveTypeWrapper.DOUBLE;
|
|
case 'F':
|
|
return PrimitiveTypeWrapper.FLOAT;
|
|
case 'I':
|
|
return PrimitiveTypeWrapper.INT;
|
|
case 'J':
|
|
return PrimitiveTypeWrapper.LONG;
|
|
case 'L':
|
|
{
|
|
int pos = index;
|
|
index = sig.IndexOf(';', index) + 1;
|
|
return SigDecoderLoadClass(sig.Substring(pos, index - pos - 1), nothrow);
|
|
}
|
|
case 'S':
|
|
return PrimitiveTypeWrapper.SHORT;
|
|
case 'Z':
|
|
return PrimitiveTypeWrapper.BOOLEAN;
|
|
case 'V':
|
|
return PrimitiveTypeWrapper.VOID;
|
|
case '[':
|
|
{
|
|
// TODO this can be optimized
|
|
string array = "[";
|
|
while(sig[index] == '[')
|
|
{
|
|
index++;
|
|
array += "[";
|
|
}
|
|
switch(sig[index])
|
|
{
|
|
case 'L':
|
|
{
|
|
int pos = index;
|
|
index = sig.IndexOf(';', index) + 1;
|
|
return SigDecoderLoadClass(array + sig.Substring(pos, index - pos), nothrow);
|
|
}
|
|
case 'B':
|
|
case 'C':
|
|
case 'D':
|
|
case 'F':
|
|
case 'I':
|
|
case 'J':
|
|
case 'S':
|
|
case 'Z':
|
|
return SigDecoderLoadClass(array + sig[index++], nothrow);
|
|
default:
|
|
throw new InvalidOperationException(sig.Substring(index));
|
|
}
|
|
}
|
|
default:
|
|
throw new InvalidOperationException(sig.Substring(index));
|
|
}
|
|
}
|
|
|
|
internal TypeWrapper FieldTypeWrapperFromSig(string sig)
|
|
{
|
|
int index = 0;
|
|
return SigDecoderWrapper(ref index, sig, false);
|
|
}
|
|
|
|
internal TypeWrapper FieldTypeWrapperFromSigNoThrow(string sig)
|
|
{
|
|
int index = 0;
|
|
return SigDecoderWrapper(ref index, sig, true);
|
|
}
|
|
|
|
internal TypeWrapper RetTypeWrapperFromSig(string sig)
|
|
{
|
|
int index = sig.IndexOf(')') + 1;
|
|
return SigDecoderWrapper(ref index, sig, false);
|
|
}
|
|
|
|
internal TypeWrapper RetTypeWrapperFromSigNoThrow(string sig)
|
|
{
|
|
int index = sig.IndexOf(')') + 1;
|
|
return SigDecoderWrapper(ref index, sig, true);
|
|
}
|
|
|
|
internal TypeWrapper[] ArgTypeWrapperListFromSig(string sig)
|
|
{
|
|
if(sig[1] == ')')
|
|
{
|
|
return TypeWrapper.EmptyArray;
|
|
}
|
|
List<TypeWrapper> list = new List<TypeWrapper>();
|
|
for(int i = 1; sig[i] != ')';)
|
|
{
|
|
list.Add(SigDecoderWrapper(ref i, sig, false));
|
|
}
|
|
return list.ToArray();
|
|
}
|
|
|
|
internal TypeWrapper[] ArgTypeWrapperListFromSigNoThrow(string sig)
|
|
{
|
|
if (sig[1] == ')')
|
|
{
|
|
return TypeWrapper.EmptyArray;
|
|
}
|
|
List<TypeWrapper> list = new List<TypeWrapper>();
|
|
for (int i = 1; sig[i] != ')'; )
|
|
{
|
|
list.Add(SigDecoderWrapper(ref i, sig, true));
|
|
}
|
|
return list.ToArray();
|
|
}
|
|
|
|
#if STATIC_COMPILER || STUB_GENERATOR
|
|
internal static ClassLoaderWrapper GetBootstrapClassLoader()
|
|
#else
|
|
internal static AssemblyClassLoader GetBootstrapClassLoader()
|
|
#endif
|
|
{
|
|
lock(wrapperLock)
|
|
{
|
|
if(bootstrapClassLoader == null)
|
|
{
|
|
bootstrapClassLoader = new BootstrapClassLoader();
|
|
}
|
|
return bootstrapClassLoader;
|
|
}
|
|
}
|
|
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR
|
|
internal static ClassLoaderWrapper GetClassLoaderWrapper(object javaClassLoader)
|
|
{
|
|
if(javaClassLoader == null)
|
|
{
|
|
return GetBootstrapClassLoader();
|
|
}
|
|
lock(wrapperLock)
|
|
{
|
|
#if FIRST_PASS
|
|
ClassLoaderWrapper wrapper = null;
|
|
#else
|
|
ClassLoaderWrapper wrapper =
|
|
#if __MonoCS__
|
|
// MONOBUG the redundant cast to ClassLoaderWrapper is to workaround an mcs bug
|
|
(ClassLoaderWrapper)(object)
|
|
#endif
|
|
((java.lang.ClassLoader)javaClassLoader).wrapper;
|
|
#endif
|
|
if(wrapper == null)
|
|
{
|
|
CodeGenOptions opt = CodeGenOptions.None;
|
|
if(JVM.EmitSymbols)
|
|
{
|
|
opt |= CodeGenOptions.Debug;
|
|
}
|
|
#if NET_4_0
|
|
if (!AppDomain.CurrentDomain.IsFullyTrusted)
|
|
{
|
|
opt |= CodeGenOptions.NoAutomagicSerialization;
|
|
}
|
|
#endif
|
|
wrapper = new ClassLoaderWrapper(opt, javaClassLoader);
|
|
SetWrapperForClassLoader(javaClassLoader, wrapper);
|
|
}
|
|
return wrapper;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if CLASSGC
|
|
internal static ClassLoaderWrapper GetClassLoaderForDynamicJavaAssembly(Assembly asm)
|
|
{
|
|
ClassLoaderWrapper loader;
|
|
dynamicAssemblies.TryGetValue(asm, out loader);
|
|
return loader;
|
|
}
|
|
#endif // CLASSGC
|
|
|
|
internal static TypeWrapper GetWrapperFromType(Type type)
|
|
{
|
|
//Tracer.Info(Tracer.Runtime, "GetWrapperFromType: {0}", type.AssemblyQualifiedName);
|
|
#if !STATIC_COMPILER
|
|
TypeWrapper.AssertFinished(type);
|
|
#endif
|
|
Debug.Assert(!type.IsPointer);
|
|
Debug.Assert(!type.IsByRef);
|
|
TypeWrapper wrapper;
|
|
lock(globalTypeToTypeWrapper)
|
|
{
|
|
globalTypeToTypeWrapper.TryGetValue(type, out wrapper);
|
|
}
|
|
if(wrapper != null)
|
|
{
|
|
return wrapper;
|
|
}
|
|
#if STUB_GENERATOR
|
|
if(type.__IsMissing || type.__ContainsMissingType)
|
|
{
|
|
wrapper = new UnloadableTypeWrapper("Missing/" + type.Assembly.FullName);
|
|
globalTypeToTypeWrapper.Add(type, wrapper);
|
|
return wrapper;
|
|
}
|
|
#endif
|
|
string remapped;
|
|
if(remappedTypes.TryGetValue(type, out remapped))
|
|
{
|
|
wrapper = LoadClassCritical(remapped);
|
|
}
|
|
else if(ReflectUtil.IsVector(type))
|
|
{
|
|
// it might be an array of a dynamically compiled Java type
|
|
int rank = 1;
|
|
Type elem = type.GetElementType();
|
|
while(ReflectUtil.IsVector(elem))
|
|
{
|
|
rank++;
|
|
elem = elem.GetElementType();
|
|
}
|
|
wrapper = GetWrapperFromType(elem).MakeArrayType(rank);
|
|
}
|
|
else
|
|
{
|
|
Assembly asm = type.Assembly;
|
|
#if CLASSGC
|
|
ClassLoaderWrapper loader;
|
|
if(dynamicAssemblies != null && dynamicAssemblies.TryGetValue(asm, out loader))
|
|
{
|
|
lock(loader.typeToTypeWrapper)
|
|
{
|
|
return loader.typeToTypeWrapper[type];
|
|
}
|
|
}
|
|
#endif
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR
|
|
if(ReflectUtil.IsReflectionOnly(type))
|
|
{
|
|
// historically we've always returned null for types that don't have a corresponding TypeWrapper (or java.lang.Class)
|
|
return null;
|
|
}
|
|
#endif
|
|
// if the wrapper doesn't already exist, that must mean that the type
|
|
// is a .NET type (or a pre-compiled Java class), which means that it
|
|
// was "loaded" by an assembly classloader
|
|
wrapper = AssemblyClassLoader.FromAssembly(asm).GetWrapperFromAssemblyType(type);
|
|
}
|
|
#if CLASSGC
|
|
if(type.Assembly.IsDynamic)
|
|
{
|
|
// don't cache types in dynamic assemblies, because they might live in a RunAndCollect assembly
|
|
// TODO we also shouldn't cache generic type instances that have a GCable type parameter
|
|
return wrapper;
|
|
}
|
|
#endif
|
|
lock(globalTypeToTypeWrapper)
|
|
{
|
|
try
|
|
{
|
|
// critical code in the finally block to avoid Thread.Abort interrupting the thread
|
|
}
|
|
finally
|
|
{
|
|
globalTypeToTypeWrapper[type] = wrapper;
|
|
}
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
internal virtual Type GetGenericTypeDefinition(string name)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
internal static ClassLoaderWrapper GetGenericClassLoader(TypeWrapper wrapper)
|
|
{
|
|
Type type = wrapper.TypeAsTBD;
|
|
Debug.Assert(type.IsGenericType);
|
|
Debug.Assert(!type.ContainsGenericParameters);
|
|
|
|
List<ClassLoaderWrapper> list = new List<ClassLoaderWrapper>();
|
|
list.Add(AssemblyClassLoader.FromAssembly(type.Assembly));
|
|
foreach(Type arg in type.GetGenericArguments())
|
|
{
|
|
ClassLoaderWrapper loader = GetWrapperFromType(arg).GetClassLoader();
|
|
if(!list.Contains(loader) && loader != bootstrapClassLoader)
|
|
{
|
|
list.Add(loader);
|
|
}
|
|
}
|
|
ClassLoaderWrapper[] key = list.ToArray();
|
|
ClassLoaderWrapper matchingLoader = GetGenericClassLoaderByKey(key);
|
|
matchingLoader.RegisterInitiatingLoader(wrapper);
|
|
return matchingLoader;
|
|
}
|
|
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
internal static object DoPrivileged(java.security.PrivilegedAction action)
|
|
{
|
|
return java.security.AccessController.doPrivileged(action, ikvm.@internal.CallerID.create(typeof(java.lang.ClassLoader).TypeHandle));
|
|
}
|
|
#endif
|
|
|
|
private static ClassLoaderWrapper GetGenericClassLoaderByKey(ClassLoaderWrapper[] key)
|
|
{
|
|
lock(wrapperLock)
|
|
{
|
|
if(genericClassLoaders == null)
|
|
{
|
|
genericClassLoaders = new List<GenericClassLoader>();
|
|
}
|
|
foreach(GenericClassLoader loader in genericClassLoaders)
|
|
{
|
|
if(loader.Matches(key))
|
|
{
|
|
return loader;
|
|
}
|
|
}
|
|
object javaClassLoader = null;
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
javaClassLoader = DoPrivileged(new AssemblyClassLoader.CreateAssemblyClassLoader(null));
|
|
#endif
|
|
GenericClassLoader newLoader = new GenericClassLoader(key, javaClassLoader);
|
|
SetWrapperForClassLoader(javaClassLoader, newLoader);
|
|
genericClassLoaders.Add(newLoader);
|
|
return newLoader;
|
|
}
|
|
}
|
|
|
|
protected static void SetWrapperForClassLoader(object javaClassLoader, ClassLoaderWrapper wrapper)
|
|
{
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
#if __MonoCS__
|
|
typeof(java.lang.ClassLoader).GetField("wrapper", BindingFlags.NonPublic | BindingFlags.Instance).SetValue(javaClassLoader, wrapper);
|
|
#else
|
|
((java.lang.ClassLoader)javaClassLoader).wrapper = wrapper;
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
internal static ClassLoaderWrapper GetGenericClassLoaderByName(string name)
|
|
{
|
|
Debug.Assert(name.StartsWith("[[") && name.EndsWith("]]"));
|
|
Stack<List<ClassLoaderWrapper>> stack = new Stack<List<ClassLoaderWrapper>>();
|
|
List<ClassLoaderWrapper> list = null;
|
|
for(int i = 0; i < name.Length; i++)
|
|
{
|
|
if(name[i] == '[')
|
|
{
|
|
if(name[i + 1] == '[')
|
|
{
|
|
stack.Push(list);
|
|
list = new List<ClassLoaderWrapper>();
|
|
if(name[i + 2] == '[')
|
|
{
|
|
i++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int start = i + 1;
|
|
i = name.IndexOf(']', i);
|
|
list.Add(ClassLoaderWrapper.GetAssemblyClassLoaderByName(name.Substring(start, i - start)));
|
|
}
|
|
}
|
|
else if(name[i] == ']')
|
|
{
|
|
ClassLoaderWrapper loader = GetGenericClassLoaderByKey(list.ToArray());
|
|
list = stack.Pop();
|
|
if(list == null)
|
|
{
|
|
return loader;
|
|
}
|
|
list.Add(loader);
|
|
}
|
|
else
|
|
{
|
|
throw new InvalidOperationException();
|
|
}
|
|
}
|
|
throw new InvalidOperationException();
|
|
}
|
|
|
|
internal static ClassLoaderWrapper GetAssemblyClassLoaderByName(string name)
|
|
{
|
|
if(name.StartsWith("[["))
|
|
{
|
|
return GetGenericClassLoaderByName(name);
|
|
}
|
|
#if STATIC_COMPILER || STUB_GENERATOR
|
|
return AssemblyClassLoader.FromAssembly(StaticCompiler.Load(name));
|
|
#else
|
|
return AssemblyClassLoader.FromAssembly(Assembly.Load(name));
|
|
#endif
|
|
}
|
|
|
|
internal static int GetGenericClassLoaderId(ClassLoaderWrapper wrapper)
|
|
{
|
|
lock(wrapperLock)
|
|
{
|
|
return genericClassLoaders.IndexOf(wrapper as GenericClassLoader);
|
|
}
|
|
}
|
|
|
|
internal static ClassLoaderWrapper GetGenericClassLoaderById(int id)
|
|
{
|
|
lock(wrapperLock)
|
|
{
|
|
return genericClassLoaders[id];
|
|
}
|
|
}
|
|
|
|
internal void SetWrapperForType(Type type, TypeWrapper wrapper)
|
|
{
|
|
#if !STATIC_COMPILER
|
|
TypeWrapper.AssertFinished(type);
|
|
#endif
|
|
Dictionary<Type, TypeWrapper> dict;
|
|
#if CLASSGC
|
|
dict = typeToTypeWrapper ?? globalTypeToTypeWrapper;
|
|
#else
|
|
dict = globalTypeToTypeWrapper;
|
|
#endif
|
|
lock (dict)
|
|
{
|
|
try
|
|
{
|
|
// critical code in the finally block to avoid Thread.Abort interrupting the thread
|
|
}
|
|
finally
|
|
{
|
|
dict.Add(type, wrapper);
|
|
}
|
|
}
|
|
}
|
|
|
|
internal static TypeWrapper LoadClassCritical(string name)
|
|
{
|
|
#if STATIC_COMPILER
|
|
TypeWrapper wrapper = GetBootstrapClassLoader().LoadClassByDottedNameFast(name);
|
|
if (wrapper == null)
|
|
{
|
|
throw new FatalCompilerErrorException(Message.CriticalClassNotFound, name);
|
|
}
|
|
return wrapper;
|
|
#else
|
|
try
|
|
{
|
|
return GetBootstrapClassLoader().LoadClassByDottedName(name);
|
|
}
|
|
catch(Exception x)
|
|
{
|
|
JVM.CriticalFailure("Loading of critical class failed", x);
|
|
return null;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
internal void RegisterNativeLibrary(IntPtr p)
|
|
{
|
|
lock(this)
|
|
{
|
|
try
|
|
{
|
|
// critical code in the finally block to avoid Thread.Abort interrupting the thread
|
|
}
|
|
finally
|
|
{
|
|
if(nativeLibraries == null)
|
|
{
|
|
nativeLibraries = new List<IntPtr>();
|
|
}
|
|
nativeLibraries.Add(p);
|
|
}
|
|
}
|
|
}
|
|
|
|
internal void UnregisterNativeLibrary(IntPtr p)
|
|
{
|
|
lock(this)
|
|
{
|
|
try
|
|
{
|
|
// critical code in the finally block to avoid Thread.Abort interrupting the thread
|
|
}
|
|
finally
|
|
{
|
|
nativeLibraries.Remove(p);
|
|
}
|
|
}
|
|
}
|
|
|
|
internal IntPtr[] GetNativeLibraries()
|
|
{
|
|
lock(this)
|
|
{
|
|
if(nativeLibraries == null)
|
|
{
|
|
return new IntPtr[0];
|
|
}
|
|
return nativeLibraries.ToArray();
|
|
}
|
|
}
|
|
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
public override string ToString()
|
|
{
|
|
object javaClassLoader = GetJavaClassLoader();
|
|
if(javaClassLoader == null)
|
|
{
|
|
return "null";
|
|
}
|
|
return String.Format("{0}@{1:X}", GetWrapperFromType(javaClassLoader.GetType()).Name, javaClassLoader.GetHashCode());
|
|
}
|
|
#endif
|
|
|
|
internal virtual bool InternalsVisibleToImpl(TypeWrapper wrapper, TypeWrapper friend)
|
|
{
|
|
Debug.Assert(wrapper.GetClassLoader() == this);
|
|
return this == friend.GetClassLoader();
|
|
}
|
|
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR
|
|
// this method is used by IKVM.Runtime.JNI
|
|
internal static ClassLoaderWrapper FromCallerID(ikvm.@internal.CallerID callerID)
|
|
{
|
|
#if FIRST_PASS
|
|
return null;
|
|
#else
|
|
return GetClassLoaderWrapper(callerID.getCallerClassLoader());
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
internal static TypeWrapper LoadClassNoThrow(ClassLoaderWrapper classLoader, string name)
|
|
{
|
|
try
|
|
{
|
|
TypeWrapper wrapper = classLoader.LoadClassByDottedNameFast(name);
|
|
if (wrapper == null)
|
|
{
|
|
string elementTypeName = name;
|
|
if (elementTypeName.StartsWith("["))
|
|
{
|
|
int skip = 1;
|
|
while (elementTypeName[skip++] == '[') ;
|
|
elementTypeName = elementTypeName.Substring(skip, elementTypeName.Length - skip - 1);
|
|
}
|
|
#if STATIC_COMPILER
|
|
classLoader.IssueMessage(Message.ClassNotFound, elementTypeName);
|
|
#else
|
|
Tracer.Error(Tracer.ClassLoading, "Class not found: {0}", elementTypeName);
|
|
#endif
|
|
wrapper = new UnloadableTypeWrapper(name);
|
|
}
|
|
return wrapper;
|
|
}
|
|
catch (RetargetableJavaException x)
|
|
{
|
|
// HACK keep the compiler from warning about unused local
|
|
GC.KeepAlive(x);
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
if(x.ToJava() is java.lang.ThreadDeath)
|
|
{
|
|
throw x.ToJava();
|
|
}
|
|
if(Tracer.ClassLoading.TraceError)
|
|
{
|
|
java.lang.ClassLoader cl = (java.lang.ClassLoader)classLoader.GetJavaClassLoader();
|
|
if(cl != null)
|
|
{
|
|
System.Text.StringBuilder sb = new System.Text.StringBuilder();
|
|
string sep = "";
|
|
while(cl != null)
|
|
{
|
|
sb.Append(sep).Append(cl);
|
|
sep = " -> ";
|
|
cl = cl.getParent();
|
|
}
|
|
Tracer.Error(Tracer.ClassLoading, "ClassLoader chain: {0}", sb);
|
|
}
|
|
Exception m = ikvm.runtime.Util.mapException(x.ToJava());
|
|
Tracer.Error(Tracer.ClassLoading, m.ToString() + Environment.NewLine + m.StackTrace);
|
|
}
|
|
#endif // !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
return new UnloadableTypeWrapper(name);
|
|
}
|
|
}
|
|
|
|
#if STATIC_COMPILER
|
|
internal virtual void IssueMessage(Message msgId, params string[] values)
|
|
{
|
|
// it's not ideal when we end up here (because it means we're emitting a warning that is not associated with a specific output target),
|
|
// but it happens when we're decoding something in a referenced assembly that either doesn't make sense or contains an unloadable type
|
|
StaticCompiler.IssueMessage(msgId, values);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
class GenericClassLoader : ClassLoaderWrapper
|
|
{
|
|
private ClassLoaderWrapper[] delegates;
|
|
|
|
internal GenericClassLoader(ClassLoaderWrapper[] delegates, object javaClassLoader)
|
|
: base(CodeGenOptions.None, javaClassLoader)
|
|
{
|
|
this.delegates = delegates;
|
|
}
|
|
|
|
internal bool Matches(ClassLoaderWrapper[] key)
|
|
{
|
|
if(key.Length == delegates.Length)
|
|
{
|
|
for(int i = 0; i < key.Length; i++)
|
|
{
|
|
if(key[i] != delegates[i])
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
internal override Type GetGenericTypeDefinition(string name)
|
|
{
|
|
foreach(ClassLoaderWrapper loader in delegates)
|
|
{
|
|
Type t = loader.GetGenericTypeDefinition(name);
|
|
if(t != null)
|
|
{
|
|
return t;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
protected override TypeWrapper LoadClassImpl(string name, bool throwClassNotFoundException)
|
|
{
|
|
TypeWrapper tw = LoadGenericClass(name);
|
|
if(tw != null)
|
|
{
|
|
return tw;
|
|
}
|
|
foreach(ClassLoaderWrapper loader in delegates)
|
|
{
|
|
tw = loader.LoadClassByDottedNameFast(name);
|
|
if(tw != null)
|
|
{
|
|
return tw;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
internal string GetName()
|
|
{
|
|
System.Text.StringBuilder sb = new System.Text.StringBuilder();
|
|
sb.Append('[');
|
|
foreach(ClassLoaderWrapper loader in delegates)
|
|
{
|
|
sb.Append('[');
|
|
GenericClassLoader gcl = loader as GenericClassLoader;
|
|
if(gcl != null)
|
|
{
|
|
sb.Append(gcl.GetName());
|
|
}
|
|
else
|
|
{
|
|
sb.Append(((AssemblyClassLoader)loader).MainAssembly.FullName);
|
|
}
|
|
sb.Append(']');
|
|
}
|
|
sb.Append(']');
|
|
return sb.ToString();
|
|
}
|
|
}
|
|
}
|