зеркало из https://github.com/mono/ikvm-fork.git
1006 строки
29 KiB
C#
1006 строки
29 KiB
C#
/*
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Copyright (C) 2002, 2003, 2004, 2005, 2006 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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using System.Reflection;
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#if !COMPACT_FRAMEWORK
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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;
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using System.Diagnostics;
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using IKVM.Attributes;
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using IKVM.Runtime;
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namespace IKVM.Internal
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{
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abstract class ClassLoaderWrapper
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{
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private static readonly object wrapperLock = new object();
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#if !COMPACT_FRAMEWORK
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protected static bool arrayConstructionHack;
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protected static readonly object arrayConstructionLock = new object();
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#endif
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private static readonly Hashtable typeToTypeWrapper = Hashtable.Synchronized(new Hashtable());
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private static ClassLoaderWrapper bootstrapClassLoader;
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#if !STATIC_COMPILER
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private static ClassLoaderWrapper systemClassLoader;
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#endif
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private object javaClassLoader;
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protected Hashtable types = new Hashtable();
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private ArrayList nativeLibraries;
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private static Hashtable remappedTypes = new Hashtable();
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// HACK this is used by the ahead-of-time compiler to overrule the bootstrap classloader
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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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static ClassLoaderWrapper()
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{
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typeToTypeWrapper[PrimitiveTypeWrapper.BOOLEAN.TypeAsTBD] = PrimitiveTypeWrapper.BOOLEAN;
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typeToTypeWrapper[PrimitiveTypeWrapper.BYTE.TypeAsTBD] = PrimitiveTypeWrapper.BYTE;
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typeToTypeWrapper[PrimitiveTypeWrapper.CHAR.TypeAsTBD] = PrimitiveTypeWrapper.CHAR;
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typeToTypeWrapper[PrimitiveTypeWrapper.DOUBLE.TypeAsTBD] = PrimitiveTypeWrapper.DOUBLE;
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typeToTypeWrapper[PrimitiveTypeWrapper.FLOAT.TypeAsTBD] = PrimitiveTypeWrapper.FLOAT;
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typeToTypeWrapper[PrimitiveTypeWrapper.INT.TypeAsTBD] = PrimitiveTypeWrapper.INT;
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typeToTypeWrapper[PrimitiveTypeWrapper.LONG.TypeAsTBD] = PrimitiveTypeWrapper.LONG;
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typeToTypeWrapper[PrimitiveTypeWrapper.SHORT.TypeAsTBD] = PrimitiveTypeWrapper.SHORT;
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typeToTypeWrapper[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)
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{
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Tracer.Info(Tracer.Runtime, "Core assembly: {0}", coreAssembly.Location);
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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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Tracer.Info(Tracer.Runtime, "Remapping type {0} to {1}", r.RemappedType, r.Name);
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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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JVM.CriticalFailure("Failed to find core classes in core library", null);
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}
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}
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}
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internal static bool IsCoreAssemblyType(Type type)
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{
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return type.Assembly == JVM.CoreAssembly;
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}
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internal ClassLoaderWrapper(object javaClassLoader)
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{
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SetJavaClassLoader(javaClassLoader);
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}
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internal void SetJavaClassLoader(object javaClassLoader)
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{
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this.javaClassLoader = javaClassLoader;
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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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internal void SetRemappedType(Type type, TypeWrapper tw)
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{
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Debug.Assert(!types.ContainsKey(tw.Name));
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types.Add(tw.Name, tw);
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Debug.Assert(!typeToTypeWrapper.ContainsKey(type));
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typeToTypeWrapper.Add(type, tw);
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remappedTypes.Add(type, type);
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}
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// HACK return the TypeWrapper if it is already loaded
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// (this exists solely for DynamicTypeWrapper.SetupGhosts and VMClassLoader.findLoadedClass)
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internal TypeWrapper GetLoadedClass(string name)
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{
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lock(types.SyncRoot)
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{
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return (TypeWrapper)types[name];
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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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if(tw == null || tw.IsUnloadable || tw.IsPrimitive)
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return tw;
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lock(types.SyncRoot)
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{
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object existing = types[tw.Name];
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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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throw new LinkageError("duplicate class definition: " + tw.Name);
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}
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if(tw.IsArray)
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{
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TypeWrapper elem = tw;
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// TODO there should be a way to get the ultimate element type
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// without creating all the intermediate types
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while(elem.IsArray)
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{
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elem = elem.ElementTypeWrapper;
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}
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RegisterInitiatingLoader(elem);
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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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#if !COMPACT_FRAMEWORK
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// HACK the proxyClassLoader is used to dynamically load classes in the boot class loader
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// (e.g. when a Proxy is defined a boot class)
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private static DynamicClassLoader proxyClassLoader;
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internal virtual TypeWrapper DefineClass(ClassFile f, object protectionDomain)
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{
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lock(wrapperLock)
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{
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if(proxyClassLoader == null)
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{
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proxyClassLoader = new DynamicClassLoader(null);
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}
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}
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return proxyClassLoader.DefineClass(f, protectionDomain);
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}
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internal TypeWrapper DefineNetExpType(string name, string assemblyName)
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{
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Debug.Assert(this == GetBootstrapClassLoader());
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TypeWrapper type;
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lock(types.SyncRoot)
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{
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// we need to check if we've already got it, because other classloaders than the bootstrap classloader may
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// "define" NetExp types, there is a potential race condition if multiple classloaders try to define the
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// same type simultaneously.
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type = (TypeWrapper)types[name];
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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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}
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// The sole purpose of the netexp class is to let us load the assembly that the class lives in,
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// once we've done that, all types in it become visible.
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Assembly asm;
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try
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{
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asm = Assembly.Load(assemblyName);
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}
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catch(Exception x)
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{
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throw new NoClassDefFoundError(name + " (" + x.Message + ")");
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}
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// pre-compiled Java types can also live in a netexp referenced assembly,
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// so we have to explicitly check for those
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// (DotNetTypeWrapper.CreateDotNetTypeWrapper will refuse to return Java types).
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Type t = GetJavaTypeFromAssembly(asm, name);
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if(t != null)
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{
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return GetWrapperFromBootstrapType(t);
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}
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type = DotNetTypeWrapper.CreateDotNetTypeWrapper(name);
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if(type == null)
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{
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throw new NoClassDefFoundError(name + " not found in " + assemblyName);
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}
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lock(types.SyncRoot)
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{
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TypeWrapper race = (TypeWrapper)types[name];
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if(race == null)
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{
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types.Add(name, type);
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}
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else
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{
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type = race;
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}
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}
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return type;
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}
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#endif
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internal TypeWrapper LoadClassByDottedName(string name)
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{
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TypeWrapper type = LoadClassByDottedNameFast(name, true);
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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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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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return LoadClassByDottedNameFast(name, false);
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}
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private TypeWrapper LoadClassByDottedNameFast(string name, bool throwClassNotFoundException)
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{
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// .NET 1.1 has a limit of 1024 characters for type names
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if(name.Length >= 1024)
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{
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return null;
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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.SyncRoot)
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{
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type = (TypeWrapper)types[name];
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if(type == null && types.ContainsKey(name))
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{
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// NOTE this can also happen if we (incorrectly) trigger a load of this class during
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// the loading of the base class, so we print a trace message here.
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Tracer.Error(Tracer.ClassLoading, "**** ClassCircularityError: {0} ****", name);
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throw new ClassCircularityError(name);
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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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int dims = 1;
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while(name[dims] == '[')
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{
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dims++;
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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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type = LoadClassByDottedNameFast(elemClass);
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if(type != null)
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{
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#if !COMPACT_FRAMEWORK
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// HACK make sure we don't go through a user class loader when creating
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// an array for a precompiled or .NET type
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// (this is to compensate for the hack that returns the system class loader
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// for precompiled classes or .NET types)
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if (type is DynamicTypeWrapper)
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{
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type = type.GetClassLoader().CreateArrayType(name, type, dims);
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}
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else
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#endif
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{
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type = GetBootstrapClassLoader().CreateArrayType(name, type, dims);
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}
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}
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return RegisterInitiatingLoader(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 RegisterInitiatingLoader(GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.BYTE, dims));
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case 'C':
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return RegisterInitiatingLoader(GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.CHAR, dims));
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case 'D':
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return RegisterInitiatingLoader(GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.DOUBLE, dims));
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case 'F':
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return RegisterInitiatingLoader(GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.FLOAT, dims));
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case 'I':
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return RegisterInitiatingLoader(GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.INT, dims));
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case 'J':
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return RegisterInitiatingLoader(GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.LONG, dims));
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case 'S':
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return RegisterInitiatingLoader(GetBootstrapClassLoader().CreateArrayType(name, PrimitiveTypeWrapper.SHORT, dims));
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case 'Z':
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return RegisterInitiatingLoader(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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if(this == GetBootstrapClassLoader())
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{
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// HACK if the name contains a comma, we assume it is an assembly qualified name
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if(name.IndexOf(',') != -1)
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{
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// NOTE even though we search all loaded assemblies below, we still need to do this,
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// because this call might actually trigger the load of an assembly.
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Type t = Type.GetType(name);
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if(t == null)
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{
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#if !COMPACT_FRAMEWORK
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// HACK we explicitly try all loaded assemblies, to support assemblies
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// that aren't loaded in the "Load" context.
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string typeName = name.Substring(0, name.IndexOf(','));
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foreach(Assembly asm in AppDomain.CurrentDomain.GetAssemblies())
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{
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t = asm.GetType(typeName);
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if(t != null && t.AssemblyQualifiedName == name)
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{
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break;
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}
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t = null;
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}
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#endif
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}
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if(t != null)
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{
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if(AttributeHelper.IsJavaModule(t.Module))
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{
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return RegisterInitiatingLoader(GetWrapperFromType(t));
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}
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else
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{
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// HACK weird way to load the .NET type wrapper that always works
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// (for remapped types as well, because netexp uses this way of
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// loading types, we need the remapped types to appear in their
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// .NET "warped" form).
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string javaName = DotNetTypeWrapper.GetName(t);
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if(javaName == null)
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{
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// some type (e.g. open generic types) are not visible from Java
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return null;
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}
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return LoadClassByDottedNameFast(javaName, throwClassNotFoundException);
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}
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}
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}
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// TODO why is this check here and not at the top of the method?
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if(name != "")
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{
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Type t = GetBootstrapTypeRaw(name);
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if(t != null)
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{
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return RegisterInitiatingLoader(GetWrapperFromBootstrapType(t));
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}
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type = DotNetTypeWrapper.CreateDotNetTypeWrapper(name);
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if(type != null)
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{
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Debug.Assert(type.Name == name, type.Name + " != " + name);
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lock(types.SyncRoot)
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{
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// another thread may have beaten us to it and in that
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// case we don't want to overwrite the previous one
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TypeWrapper race = (TypeWrapper)types[name];
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if(race == null)
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{
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types[name] = type;
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}
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else
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{
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type = race;
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}
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}
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return type;
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}
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// NOTE it is important that this is done last, because otherwise we will
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// load the netexp generated fake types (e.g. delegate inner interface) instead
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// of having DotNetTypeWrapper generating it.
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type = GetTypeWrapperCompilerHook(name);
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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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}
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if(javaClassLoader == null)
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{
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return null;
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}
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}
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#if !COMPACT_FRAMEWORK
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if(this == proxyClassLoader)
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{
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return GetBootstrapClassLoader().LoadClassByDottedNameFast(name, throwClassNotFoundException);
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}
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#endif
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#if !STATIC_COMPILER
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// NOTE just like Java does (I think), we take the classloader lock before calling the loadClass method
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lock(javaClassLoader)
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{
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Profiler.Enter("ClassLoader.loadClass");
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try
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{
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type = (TypeWrapper)JVM.Library.loadClass(javaClassLoader, name);
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}
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catch(Exception x)
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{
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if(!throwClassNotFoundException
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&& LoadClassCritical("java.lang.ClassNotFoundException").TypeAsBaseType.IsInstanceOfType(x))
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{
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return null;
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}
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throw new ClassLoadingException(IKVM.Runtime.Util.MapException(x));
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}
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finally
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{
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Profiler.Leave("ClassLoader.loadClass");
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}
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// NOTE to be safe, we register the initiating loader,
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// while we're holding the lock on the class loader object
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return RegisterInitiatingLoader(type);
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}
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#else
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return null;
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#endif
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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 GetWrapperFromBootstrapType(Type type)
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{
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//Tracer.Info(Tracer.Runtime, "GetWrapperFromBootstrapType: {0}", type.FullName);
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Debug.Assert(GetWrapperFromTypeFast(type) == null, "GetWrapperFromTypeFast(type) == null", type.FullName);
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Debug.Assert(!type.IsArray, "!type.IsArray", type.FullName);
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#if !COMPACT_FRAMEWORK
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Debug.Assert(!(type.Assembly is AssemblyBuilder), "!(type.Assembly is AssemblyBuilder)", type.FullName);
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#endif
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// only the bootstrap classloader can own compiled types
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Debug.Assert(this == GetBootstrapClassLoader(), "this == GetBootstrapClassLoader()", type.FullName);
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bool javaType = AttributeHelper.IsJavaModule(type.Module);
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string name;
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if(javaType)
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{
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name = CompiledTypeWrapper.GetName(type);
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}
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else
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{
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name = DotNetTypeWrapper.GetName(type);
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}
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TypeWrapper wrapper;
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lock(types.SyncRoot)
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{
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wrapper = (TypeWrapper)types[name];
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}
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if(wrapper != null)
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{
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if(wrapper.TypeAsTBD != type)
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{
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string msg = String.Format("\nTypename \"{0}\" is imported from multiple assemblies:\n{1}\n{2}\n", type.FullName, wrapper.Assembly.FullName, type.Assembly.FullName);
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JVM.CriticalFailure(msg, null);
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}
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}
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else
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{
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if(javaType)
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{
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// since this type was compiled from Java source, we have to look for our
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// attributes
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wrapper = CompiledTypeWrapper.newInstance(name, type);
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}
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else
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{
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// since this type was not compiled from Java source, we don't need to
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// look for our attributes, but we do need to filter unrepresentable
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// stuff (and transform some other stuff)
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wrapper = new DotNetTypeWrapper(type);
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}
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Debug.Assert(wrapper.Name == name, "wrapper.Name == name", type.FullName);
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lock(types.SyncRoot)
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{
|
|
// another thread may have beaten us to it and in that
|
|
// case we don't want to overwrite the previous one
|
|
TypeWrapper race = (TypeWrapper)types[name];
|
|
if(race == null)
|
|
{
|
|
types.Add(name, wrapper);
|
|
typeToTypeWrapper.Add(type, wrapper);
|
|
}
|
|
else
|
|
{
|
|
wrapper = race;
|
|
}
|
|
}
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
// NOTE this method only sees pre-compiled Java classes
|
|
internal Type GetBootstrapTypeRaw(string name)
|
|
{
|
|
#if COMPACT_FRAMEWORK
|
|
// TODO figure this out
|
|
return GetJavaTypeFromAssembly(JVM.CoreAssembly, name);
|
|
#else
|
|
Assembly[] assemblies;
|
|
#if WHIDBEY
|
|
if(JVM.IsStaticCompiler || JVM.IsIkvmStub)
|
|
{
|
|
assemblies = AppDomain.CurrentDomain.ReflectionOnlyGetAssemblies();
|
|
}
|
|
else
|
|
{
|
|
assemblies = AppDomain.CurrentDomain.GetAssemblies();
|
|
}
|
|
#else
|
|
assemblies = AppDomain.CurrentDomain.GetAssemblies();
|
|
#endif
|
|
foreach(Assembly a in assemblies)
|
|
{
|
|
if(!(a is AssemblyBuilder))
|
|
{
|
|
Type t = GetJavaTypeFromAssembly(a, name);
|
|
if(t != null)
|
|
{
|
|
return t;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
#endif
|
|
}
|
|
|
|
private static Type GetJavaTypeFromAssembly(Assembly a, string name)
|
|
{
|
|
try
|
|
{
|
|
Type t = a.GetType(name);
|
|
if(t != null
|
|
&& AttributeHelper.IsJavaModule(t.Module)
|
|
&& !AttributeHelper.IsHideFromJava(t))
|
|
{
|
|
return t;
|
|
}
|
|
// HACK we might be looking for an inner classes
|
|
t = a.GetType(name.Replace('$', '+'));
|
|
if(t != null
|
|
&& AttributeHelper.IsJavaModule(t.Module)
|
|
&& !AttributeHelper.IsHideFromJava(t))
|
|
{
|
|
return t;
|
|
}
|
|
}
|
|
catch(ArgumentException x)
|
|
{
|
|
// we can end up here because we replace the $ with a plus sign
|
|
// (or client code did a Class.forName() on an invalid name)
|
|
Tracer.Info(Tracer.Runtime, x.Message);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
internal virtual TypeWrapper GetTypeWrapperCompilerHook(string name)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
// NOTE this method can actually return null if the resulting array type name would be too long
|
|
// for .NET to handle.
|
|
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);
|
|
Type elementType = elementTypeWrapper.TypeAsArrayType;
|
|
TypeWrapper wrapper;
|
|
lock(types.SyncRoot)
|
|
{
|
|
wrapper = (TypeWrapper)types[name];
|
|
}
|
|
if(wrapper == null)
|
|
{
|
|
String netname = elementType.FullName + "[]";
|
|
for(int i = 1; i < dims; i++)
|
|
{
|
|
netname += "[]";
|
|
}
|
|
// .NET 1.1 has a limit of 1024 characters for type names
|
|
if(netname.Length >= 1024)
|
|
{
|
|
return null;
|
|
}
|
|
Type array;
|
|
#if !COMPACT_FRAMEWORK
|
|
if(elementType.Module is ModuleBuilder)
|
|
{
|
|
// FXBUG ModuleBuilder.GetType() is broken (I think), it fires a TypeResolveEvent when
|
|
// you try to construct an array type from an unfinished type. I don't think it should
|
|
// do that. We have to work around that by setting a global flag (yuck) to prevent us
|
|
// from responding to the TypeResolveEvent.
|
|
lock(arrayConstructionLock)
|
|
{
|
|
arrayConstructionHack = true;
|
|
try
|
|
{
|
|
array = ((ModuleBuilder)elementType.Module).GetType(netname);
|
|
}
|
|
finally
|
|
{
|
|
arrayConstructionHack = false;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
array = elementType.Assembly.GetType(netname, true);
|
|
}
|
|
Modifiers modifiers = Modifiers.Final | Modifiers.Abstract;
|
|
Modifiers reflectiveModifiers = modifiers;
|
|
modifiers |= elementTypeWrapper.Modifiers & Modifiers.Public;
|
|
reflectiveModifiers |= elementTypeWrapper.ReflectiveModifiers & Modifiers.AccessMask;
|
|
wrapper = new ArrayTypeWrapper(array, modifiers, reflectiveModifiers, name, this);
|
|
lock(types.SyncRoot)
|
|
{
|
|
// another thread may have beaten us to it and in that
|
|
// case we don't want to overwrite the previous one
|
|
TypeWrapper race = (TypeWrapper)types[name];
|
|
if(race == null)
|
|
{
|
|
types.Add(name, wrapper);
|
|
#if COMPACT_FRAMEWORK
|
|
if(!wrapper.IsGhostArray)
|
|
{
|
|
Debug.Assert(!typeToTypeWrapper.ContainsKey(array), name);
|
|
typeToTypeWrapper.Add(array, wrapper);
|
|
}
|
|
#else
|
|
if(!(elementType is TypeBuilder) && !wrapper.IsGhostArray)
|
|
{
|
|
Debug.Assert(!typeToTypeWrapper.ContainsKey(array), name);
|
|
typeToTypeWrapper.Add(array, wrapper);
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
wrapper = race;
|
|
}
|
|
}
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
internal object GetJavaClassLoader()
|
|
{
|
|
return (this == GetBootstrapClassLoader()) ? null : javaClassLoader;
|
|
}
|
|
|
|
// When -Xbootclasspath is specified, we use a URLClassLoader as an
|
|
// additional bootstrap class loader (this is not visible to the Java code).
|
|
// We need to access this to be able to load resources.
|
|
internal static object GetJavaBootstrapClassLoader()
|
|
{
|
|
return GetBootstrapClassLoader().javaClassLoader;
|
|
}
|
|
|
|
internal TypeWrapper ExpressionTypeWrapper(string type)
|
|
{
|
|
Debug.Assert(!type.StartsWith("Lret;"));
|
|
Debug.Assert(type != "Lnull");
|
|
|
|
int index = 0;
|
|
return SigDecoderWrapper(ref index, type);
|
|
}
|
|
|
|
// NOTE this exposes potentially unfinished types
|
|
internal Type[] ArgTypeListFromSig(string sig)
|
|
{
|
|
if(sig[1] == ')')
|
|
{
|
|
#if COMPACT_FRAMEWORK
|
|
return new Type[0];
|
|
#else
|
|
return Type.EmptyTypes;
|
|
#endif
|
|
}
|
|
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;
|
|
}
|
|
|
|
// 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)
|
|
{
|
|
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 LoadClassByDottedName(sig.Substring(pos, index - pos - 1));
|
|
}
|
|
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 LoadClassByDottedName(array + sig.Substring(pos, index - pos));
|
|
}
|
|
case 'B':
|
|
case 'C':
|
|
case 'D':
|
|
case 'F':
|
|
case 'I':
|
|
case 'J':
|
|
case 'S':
|
|
case 'Z':
|
|
return LoadClassByDottedName(array + sig[index++]);
|
|
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);
|
|
}
|
|
|
|
internal TypeWrapper RetTypeWrapperFromSig(string sig)
|
|
{
|
|
int index = sig.IndexOf(')') + 1;
|
|
return SigDecoderWrapper(ref index, sig);
|
|
}
|
|
|
|
internal TypeWrapper[] ArgTypeWrapperListFromSig(string sig)
|
|
{
|
|
if(sig[1] == ')')
|
|
{
|
|
return TypeWrapper.EmptyArray;
|
|
}
|
|
ArrayList list = new ArrayList();
|
|
for(int i = 1; sig[i] != ')';)
|
|
{
|
|
list.Add(SigDecoderWrapper(ref i, sig));
|
|
}
|
|
TypeWrapper[] types = new TypeWrapper[list.Count];
|
|
list.CopyTo(types);
|
|
return types;
|
|
}
|
|
|
|
internal static ClassLoaderWrapper GetBootstrapClassLoader()
|
|
{
|
|
lock(wrapperLock)
|
|
{
|
|
if(bootstrapClassLoader == null)
|
|
{
|
|
bootstrapClassLoader = new BootstrapClassLoader();
|
|
}
|
|
return bootstrapClassLoader;
|
|
}
|
|
}
|
|
|
|
internal static ClassLoaderWrapper GetSystemClassLoader()
|
|
{
|
|
#if STATIC_COMPILER
|
|
// during static compilation, we don't have a system class loader
|
|
return GetBootstrapClassLoader();
|
|
#else
|
|
if(systemClassLoader == null)
|
|
{
|
|
systemClassLoader = GetClassLoaderWrapper(JVM.Library.getSystemClassLoader());
|
|
}
|
|
return systemClassLoader;
|
|
#endif
|
|
}
|
|
|
|
#if !STATIC_COMPILER
|
|
internal static ClassLoaderWrapper GetClassLoaderWrapper(object javaClassLoader)
|
|
{
|
|
if(javaClassLoader == null || GetBootstrapClassLoader().javaClassLoader == javaClassLoader)
|
|
{
|
|
return GetBootstrapClassLoader();
|
|
}
|
|
lock(wrapperLock)
|
|
{
|
|
ClassLoaderWrapper wrapper = (ClassLoaderWrapper)JVM.Library.getWrapperFromClassLoader(javaClassLoader);
|
|
if(wrapper == null)
|
|
{
|
|
wrapper = new DynamicClassLoader(javaClassLoader);
|
|
JVM.Library.setWrapperForClassLoader(javaClassLoader, wrapper);
|
|
}
|
|
return wrapper;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// This only returns the wrapper for a Type if that wrapper has already been created, otherwise
|
|
// it returns null
|
|
// If the wrapper doesn't exist, that means that the type is either a .NET type or a pre-compiled Java class
|
|
internal static TypeWrapper GetWrapperFromTypeFast(Type type)
|
|
{
|
|
TypeWrapper.AssertFinished(type);
|
|
Debug.Assert(!Whidbey.ContainsGenericParameters(type));
|
|
TypeWrapper wrapper = (TypeWrapper)typeToTypeWrapper[type];
|
|
if(wrapper == null)
|
|
{
|
|
string name = (string)remappedTypes[type];
|
|
if(name != null)
|
|
{
|
|
return LoadClassCritical(name);
|
|
}
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
internal static TypeWrapper GetWrapperFromType(Type type)
|
|
{
|
|
//Tracer.Info(Tracer.Runtime, "GetWrapperFromType: {0}", type.AssemblyQualifiedName);
|
|
TypeWrapper.AssertFinished(type);
|
|
Debug.Assert(!Whidbey.ContainsGenericParameters(type));
|
|
TypeWrapper wrapper = GetWrapperFromTypeFast(type);
|
|
if(wrapper == null)
|
|
{
|
|
Debug.Assert(type != typeof(object) && type != typeof(string));
|
|
if(type.IsArray)
|
|
{
|
|
// it might be an array of a dynamically compiled Java type
|
|
int rank = 1;
|
|
Type elem = type.GetElementType();
|
|
while(elem.IsArray)
|
|
{
|
|
rank++;
|
|
elem = elem.GetElementType();
|
|
}
|
|
wrapper = GetWrapperFromType(elem);
|
|
return wrapper.MakeArrayType(rank);
|
|
}
|
|
// 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 the bootstrap classloader
|
|
// TODO think up a scheme to deal with .NET types that have the same name. Since all .NET types
|
|
// appear in the boostrap classloader, we need to devise a scheme to mangle the class name
|
|
return GetBootstrapClassLoader().GetWrapperFromBootstrapType(type);
|
|
}
|
|
return wrapper;
|
|
}
|
|
|
|
internal static void SetWrapperForType(Type type, TypeWrapper wrapper)
|
|
{
|
|
TypeWrapper.AssertFinished(type);
|
|
Debug.Assert(!typeToTypeWrapper.ContainsKey(type));
|
|
typeToTypeWrapper.Add(type, wrapper);
|
|
}
|
|
|
|
#if STATIC_COMPILER
|
|
internal static void PublishLibraryImplementationHelperType(Type type)
|
|
{
|
|
CompiledTypeWrapper typeWrapper = CompiledTypeWrapper.newInstance(type.FullName, type);
|
|
SetWrapperForType(type, typeWrapper);
|
|
GetBootstrapClassLoader().types[type.FullName] = typeWrapper;
|
|
}
|
|
#endif // STATIC_COMPILER
|
|
|
|
internal static TypeWrapper LoadClassCritical(string name)
|
|
{
|
|
try
|
|
{
|
|
return GetBootstrapClassLoader().LoadClassByDottedName(name);
|
|
}
|
|
catch(Exception x)
|
|
{
|
|
JVM.CriticalFailure("Loading of critical class failed", x);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
internal void RegisterNativeLibrary(IntPtr p)
|
|
{
|
|
lock(this)
|
|
{
|
|
if(nativeLibraries == null)
|
|
{
|
|
nativeLibraries = new ArrayList();
|
|
}
|
|
nativeLibraries.Add(p);
|
|
}
|
|
}
|
|
|
|
internal IntPtr[] GetNativeLibraries()
|
|
{
|
|
lock(this)
|
|
{
|
|
if(nativeLibraries == null)
|
|
{
|
|
return new IntPtr[0];
|
|
}
|
|
return (IntPtr[])nativeLibraries.ToArray(typeof(IntPtr));
|
|
}
|
|
}
|
|
|
|
public override string ToString()
|
|
{
|
|
if(javaClassLoader == null)
|
|
{
|
|
return "null";
|
|
}
|
|
return String.Format("{0}@{1:X}", GetWrapperFromType(javaClassLoader.GetType()).Name, javaClassLoader.GetHashCode());
|
|
}
|
|
}
|
|
|
|
class BootstrapClassLoader : ClassLoaderWrapper
|
|
{
|
|
internal BootstrapClassLoader()
|
|
: base(null)
|
|
{
|
|
}
|
|
}
|
|
}
|