1348 lines
38 KiB
C#
1348 lines
38 KiB
C#
/*
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Copyright (C) 2002-2013 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.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 FormatterServices = System.Runtime.Serialization.FormatterServices;
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using IKVM.Attributes;
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#if STATIC_COMPILER || STUB_GENERATOR
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using IKVM.Reflection;
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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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#endif
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namespace IKVM.Internal
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{
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class AssemblyClassLoader : ClassLoaderWrapper
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{
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private static readonly Dictionary<Assembly, AssemblyClassLoader> assemblyClassLoaders = new Dictionary<Assembly, AssemblyClassLoader>();
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private AssemblyLoader assemblyLoader;
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private string[] references;
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private AssemblyClassLoader[] delegates;
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#if !STATIC_COMPILER && !STUB_GENERATOR && !FIRST_PASS
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private JavaClassLoaderConstructionInProgress jclcip;
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private java.security.ProtectionDomain protectionDomain;
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private static Dictionary<string, string> customClassLoaderRedirects;
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private byte hasCustomClassLoader; /* 0 = unknown, 1 = yes, 2 = no */
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#endif
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private Dictionary<int, List<int>> exports;
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private string[] exportedAssemblyNames;
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private AssemblyLoader[] exportedAssemblies;
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private Dictionary<Assembly, AssemblyLoader> exportedLoaders;
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private sealed class AssemblyLoader
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{
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private readonly Assembly assembly;
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private bool[] isJavaModule;
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private Module[] modules;
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private Dictionary<string, string> nameMap;
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private bool hasDotNetModule;
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private AssemblyName[] internalsVisibleTo;
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private string[] jarList;
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#if !STATIC_COMPILER && !STUB_GENERATOR && !FIRST_PASS
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private sun.misc.URLClassPath urlClassPath;
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#endif
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internal AssemblyLoader(Assembly assembly)
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{
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this.assembly = assembly;
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modules = assembly.GetModules(false);
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isJavaModule = new bool[modules.Length];
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for (int i = 0; i < modules.Length; i++)
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{
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object[] attr = AttributeHelper.GetJavaModuleAttributes(modules[i]);
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if (attr.Length > 0)
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{
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isJavaModule[i] = true;
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foreach (JavaModuleAttribute jma in attr)
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{
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string[] map = jma.GetClassMap();
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if (map != null)
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{
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if (nameMap == null)
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{
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nameMap = new Dictionary<string, string>();
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}
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for (int j = 0; j < map.Length; j += 2)
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{
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string key = map[j];
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string val = map[j + 1];
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// TODO if there is a name clash between modules, this will throw.
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// Figure out how to handle that.
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nameMap.Add(key, val);
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}
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}
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string[] jars = jma.Jars;
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if (jars != null)
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{
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if (jarList == null)
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{
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jarList = jars;
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}
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else
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{
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string[] newList = new string[jarList.Length + jars.Length];
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Array.Copy(jarList, newList, jarList.Length);
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Array.Copy(jars, 0, newList, jarList.Length, jars.Length);
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jarList = newList;
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}
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}
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}
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}
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else
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{
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hasDotNetModule = true;
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}
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}
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}
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internal bool HasJavaModule
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{
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get
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{
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for (int i = 0; i < isJavaModule.Length; i++)
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{
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if (isJavaModule[i])
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{
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return true;
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}
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}
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return false;
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}
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}
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internal Assembly Assembly
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{
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get { return assembly; }
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}
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private Type GetType(string name)
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{
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try
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{
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return assembly.GetType(name);
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}
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catch (ArgumentException)
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{
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}
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catch (FileLoadException x)
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{
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// this can only happen if the assembly was loaded in the ReflectionOnly
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// context and the requested type references a type in another assembly
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// that cannot be found in the ReflectionOnly context
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// TODO figure out what other exceptions Assembly.GetType() can throw
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Tracer.Info(Tracer.Runtime, x.Message);
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}
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return null;
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}
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private Type GetType(Module mod, string name)
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{
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try
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{
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return mod.GetType(name);
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}
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catch (ArgumentException)
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{
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}
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catch (FileLoadException x)
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{
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// this can only happen if the assembly was loaded in the ReflectionOnly
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// context and the requested type references a type in another assembly
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// that cannot be found in the ReflectionOnly context
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// TODO figure out what other exceptions Assembly.GetType() can throw
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Tracer.Info(Tracer.Runtime, x.Message);
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}
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return null;
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}
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private Type GetJavaType(Module mod, string name)
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{
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try
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{
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string n = null;
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if (nameMap != null)
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{
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nameMap.TryGetValue(name, out n);
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}
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Type t = GetType(mod, n != null ? n : name);
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if (t == null)
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{
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n = name.Replace('$', '+');
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if (!ReferenceEquals(n, name))
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{
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t = GetType(n);
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}
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}
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if (t != null
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&& !AttributeHelper.IsHideFromJava(t)
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&& !t.IsArray
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&& !t.IsPointer
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&& !t.IsByRef)
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{
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return t;
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}
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}
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catch (ArgumentException x)
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{
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// we can end up here because we replace the $ with a plus sign
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// (or client code did a Class.forName() on an invalid name)
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Tracer.Info(Tracer.Runtime, x.Message);
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}
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return null;
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}
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internal TypeWrapper DoLoad(string name)
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{
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for (int i = 0; i < modules.Length; i++)
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{
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if (isJavaModule[i])
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{
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Type type = GetJavaType(modules[i], name);
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if (type != null)
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{
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// check the name to make sure that the canonical name was used
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if (CompiledTypeWrapper.GetName(type) == name)
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{
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return CompiledTypeWrapper.newInstance(name, type);
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}
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}
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}
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else
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{
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// TODO should we catch ArgumentException and prohibit array, pointer and byref here?
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Type type = GetType(modules[i], DotNetTypeWrapper.DemangleTypeName(name));
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if (type != null && DotNetTypeWrapper.IsAllowedOutside(type))
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{
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// check the name to make sure that the canonical name was used
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if (DotNetTypeWrapper.GetName(type) == name)
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{
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return DotNetTypeWrapper.Create(type, name);
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}
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}
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}
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}
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if (hasDotNetModule)
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{
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// for fake types, we load the declaring outer type (the real one) and
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// let that generated the manufactured nested classes
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// (note that for generic outer types, we need to duplicate this in ClassLoaderWrapper.LoadGenericClass)
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TypeWrapper outer = null;
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if (name.EndsWith(DotNetTypeWrapper.DelegateInterfaceSuffix))
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{
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outer = DoLoad(name.Substring(0, name.Length - DotNetTypeWrapper.DelegateInterfaceSuffix.Length));
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}
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else if (name.EndsWith(DotNetTypeWrapper.AttributeAnnotationSuffix))
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{
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outer = DoLoad(name.Substring(0, name.Length - DotNetTypeWrapper.AttributeAnnotationSuffix.Length));
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}
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else if (name.EndsWith(DotNetTypeWrapper.AttributeAnnotationReturnValueSuffix))
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{
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outer = DoLoad(name.Substring(0, name.Length - DotNetTypeWrapper.AttributeAnnotationReturnValueSuffix.Length));
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}
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else if (name.EndsWith(DotNetTypeWrapper.AttributeAnnotationMultipleSuffix))
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{
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outer = DoLoad(name.Substring(0, name.Length - DotNetTypeWrapper.AttributeAnnotationMultipleSuffix.Length));
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}
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else if (name.EndsWith(DotNetTypeWrapper.EnumEnumSuffix))
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{
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outer = DoLoad(name.Substring(0, name.Length - DotNetTypeWrapper.EnumEnumSuffix.Length));
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}
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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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return null;
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}
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internal string GetTypeNameAndType(Type type, out bool isJavaType)
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{
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Module mod = type.Module;
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int moduleIndex = -1;
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for (int i = 0; i < modules.Length; i++)
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{
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if (modules[i] == mod)
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{
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moduleIndex = i;
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break;
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}
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}
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if (isJavaModule[moduleIndex])
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{
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isJavaType = true;
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if (AttributeHelper.IsHideFromJava(type))
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{
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return null;
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}
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return CompiledTypeWrapper.GetName(type);
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}
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else
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{
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isJavaType = false;
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if (!DotNetTypeWrapper.IsAllowedOutside(type))
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{
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return null;
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}
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return DotNetTypeWrapper.GetName(type);
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}
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}
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internal TypeWrapper CreateWrapperForAssemblyType(Type type)
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{
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bool isJavaType;
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string name = GetTypeNameAndType(type, out isJavaType);
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if (name == null)
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{
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return null;
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}
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if (isJavaType)
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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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return 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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return DotNetTypeWrapper.Create(type, name);
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}
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}
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internal bool InternalsVisibleTo(AssemblyName otherName)
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{
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if (internalsVisibleTo == null)
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{
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Interlocked.CompareExchange(ref internalsVisibleTo, AttributeHelper.GetInternalsVisibleToAttributes(assembly), null);
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}
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foreach (AssemblyName name in internalsVisibleTo)
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{
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// we match the simple name and PublicKeyToken (because the AssemblyName constructor used
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// by GetInternalsVisibleToAttributes() only sets the PublicKeyToken, even if a PublicKey is specified)
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if (ReflectUtil.MatchNameAndPublicKeyToken(name, otherName))
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{
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return true;
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}
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}
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return false;
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}
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#if !STATIC_COMPILER && !STUB_GENERATOR && !FIRST_PASS
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internal java.util.Enumeration FindResources(string name)
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{
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if (urlClassPath == null)
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{
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if (jarList == null)
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{
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return gnu.java.util.EmptyEnumeration.getInstance();
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}
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List<java.net.URL> urls = new List<java.net.URL>();
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foreach (string jar in jarList)
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{
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urls.Add(MakeResourceURL(assembly, jar));
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}
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Interlocked.CompareExchange(ref urlClassPath, new sun.misc.URLClassPath(urls.ToArray()), null);
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}
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return urlClassPath.findResources(name, true);
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}
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#endif
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}
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internal AssemblyClassLoader(Assembly assembly)
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: this(assembly, null)
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{
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}
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internal AssemblyClassLoader(Assembly assembly, string[] fixedReferences)
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: base(CodeGenOptions.None, null)
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{
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this.assemblyLoader = new AssemblyLoader(assembly);
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this.references = fixedReferences;
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}
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#if STATIC_COMPILER
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internal static void PreloadExportedAssemblies(Assembly assembly)
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{
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if (assembly.GetManifestResourceInfo("ikvm.exports") != null)
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{
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using (Stream stream = assembly.GetManifestResourceStream("ikvm.exports"))
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{
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BinaryReader rdr = new BinaryReader(stream);
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int assemblyCount = rdr.ReadInt32();
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for (int i = 0; i < assemblyCount; i++)
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{
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string assemblyName = rdr.ReadString();
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int typeCount = rdr.ReadInt32();
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if (typeCount != 0)
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{
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for (int j = 0; j < typeCount; j++)
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{
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rdr.ReadInt32();
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}
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try
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{
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StaticCompiler.LoadFile(assembly.Location + "/../" + new AssemblyName(assemblyName).Name + ".dll");
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}
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catch { }
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}
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}
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}
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}
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}
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#endif
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private void DoInitializeExports()
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{
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lock (this)
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{
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if (delegates == null)
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{
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if (!(ReflectUtil.IsDynamicAssembly(assemblyLoader.Assembly)) && assemblyLoader.Assembly.GetManifestResourceInfo("ikvm.exports") != null)
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{
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List<string> wildcardExports = new List<string>();
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using (Stream stream = assemblyLoader.Assembly.GetManifestResourceStream("ikvm.exports"))
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{
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BinaryReader rdr = new BinaryReader(stream);
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int assemblyCount = rdr.ReadInt32();
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exports = new Dictionary<int, List<int>>();
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exportedAssemblies = new AssemblyLoader[assemblyCount];
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exportedAssemblyNames = new string[assemblyCount];
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exportedLoaders = new Dictionary<Assembly, AssemblyLoader>();
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for (int i = 0; i < assemblyCount; i++)
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{
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exportedAssemblyNames[i] = String.Intern(rdr.ReadString());
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int typeCount = rdr.ReadInt32();
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if (typeCount == 0 && references == null)
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{
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wildcardExports.Add(exportedAssemblyNames[i]);
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}
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for (int j = 0; j < typeCount; j++)
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{
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int hash = rdr.ReadInt32();
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List<int> assemblies;
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if (!exports.TryGetValue(hash, out assemblies))
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{
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assemblies = new List<int>();
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exports.Add(hash, assemblies);
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}
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assemblies.Add(i);
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}
|
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}
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}
|
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if (references == null)
|
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{
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references = wildcardExports.ToArray();
|
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}
|
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}
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else
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{
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AssemblyName[] refNames = assemblyLoader.Assembly.GetReferencedAssemblies();
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references = new string[refNames.Length];
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for (int i = 0; i < references.Length; i++)
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{
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references[i] = refNames[i].FullName;
|
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}
|
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}
|
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Interlocked.Exchange(ref delegates, new AssemblyClassLoader[references.Length]);
|
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}
|
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}
|
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}
|
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|
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private void LazyInitExports()
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{
|
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if (delegates == null)
|
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{
|
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DoInitializeExports();
|
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}
|
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}
|
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|
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internal Assembly MainAssembly
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{
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get
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{
|
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return assemblyLoader.Assembly;
|
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}
|
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}
|
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|
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internal Assembly GetAssembly(TypeWrapper wrapper)
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{
|
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Debug.Assert(wrapper.GetClassLoader() == this);
|
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while (wrapper.IsFakeNestedType)
|
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{
|
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wrapper = wrapper.DeclaringTypeWrapper;
|
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}
|
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return wrapper.TypeAsBaseType.Assembly;
|
|
}
|
|
|
|
private Assembly LoadAssemblyOrClearName(ref string name, bool exported)
|
|
{
|
|
if (name == null)
|
|
{
|
|
// previous load attemp failed
|
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return null;
|
|
}
|
|
try
|
|
{
|
|
#if STATIC_COMPILER || STUB_GENERATOR
|
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return StaticCompiler.Load(name);
|
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#else
|
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return Assembly.Load(name);
|
|
#endif
|
|
}
|
|
catch
|
|
{
|
|
// cache failure by clearing out the name the caller uses
|
|
name = null;
|
|
// should we issue a warning error (in ikvmc)?
|
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return null;
|
|
}
|
|
}
|
|
|
|
internal TypeWrapper DoLoad(string name)
|
|
{
|
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TypeWrapper tw = assemblyLoader.DoLoad(name);
|
|
if (tw != null)
|
|
{
|
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return RegisterInitiatingLoader(tw);
|
|
}
|
|
LazyInitExports();
|
|
if (exports != null)
|
|
{
|
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List<int> assemblies;
|
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if (exports.TryGetValue(JVM.PersistableHash(name), out assemblies))
|
|
{
|
|
foreach (int index in assemblies)
|
|
{
|
|
AssemblyLoader loader = TryGetLoaderByIndex(index);
|
|
if (loader != null)
|
|
{
|
|
tw = loader.DoLoad(name);
|
|
if (tw != null)
|
|
{
|
|
return RegisterInitiatingLoader(tw);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
internal string GetTypeNameAndType(Type type, out bool isJavaType)
|
|
{
|
|
return GetLoader(type.Assembly).GetTypeNameAndType(type, out isJavaType);
|
|
}
|
|
|
|
private AssemblyLoader TryGetLoaderByIndex(int index)
|
|
{
|
|
AssemblyLoader loader = exportedAssemblies[index];
|
|
if (loader == null)
|
|
{
|
|
Assembly asm = LoadAssemblyOrClearName(ref exportedAssemblyNames[index], true);
|
|
if (asm != null)
|
|
{
|
|
loader = exportedAssemblies[index] = GetLoaderForExportedAssembly(asm);
|
|
}
|
|
}
|
|
return loader;
|
|
}
|
|
|
|
internal List<Assembly> GetAllAvailableAssemblies()
|
|
{
|
|
List<Assembly> list = new List<Assembly>();
|
|
list.Add(assemblyLoader.Assembly);
|
|
LazyInitExports();
|
|
if (exportedAssemblies != null)
|
|
{
|
|
for (int i = 0; i < exportedAssemblies.Length; i++)
|
|
{
|
|
AssemblyLoader loader = TryGetLoaderByIndex(i);
|
|
if (loader != null && FromAssembly(loader.Assembly) == this)
|
|
{
|
|
list.Add(loader.Assembly);
|
|
}
|
|
}
|
|
}
|
|
return list;
|
|
}
|
|
|
|
private AssemblyLoader GetLoader(Assembly assembly)
|
|
{
|
|
if (assemblyLoader.Assembly == assembly)
|
|
{
|
|
return assemblyLoader;
|
|
}
|
|
return GetLoaderForExportedAssembly(assembly);
|
|
}
|
|
|
|
private AssemblyLoader GetLoaderForExportedAssembly(Assembly assembly)
|
|
{
|
|
LazyInitExports();
|
|
AssemblyLoader loader;
|
|
lock (exportedLoaders)
|
|
{
|
|
exportedLoaders.TryGetValue(assembly, out loader);
|
|
}
|
|
if (loader == null)
|
|
{
|
|
loader = new AssemblyLoader(assembly);
|
|
lock (exportedLoaders)
|
|
{
|
|
AssemblyLoader existing;
|
|
if (exportedLoaders.TryGetValue(assembly, out existing))
|
|
{
|
|
// another thread beat us to it
|
|
loader = existing;
|
|
}
|
|
else
|
|
{
|
|
exportedLoaders.Add(assembly, loader);
|
|
}
|
|
}
|
|
}
|
|
return loader;
|
|
}
|
|
|
|
internal virtual TypeWrapper GetWrapperFromAssemblyType(Type type)
|
|
{
|
|
//Tracer.Info(Tracer.Runtime, "GetWrapperFromAssemblyType: {0}", type.FullName);
|
|
Debug.Assert(!type.Name.EndsWith("[]"), "!type.IsArray", type.FullName);
|
|
Debug.Assert(AssemblyClassLoader.FromAssembly(type.Assembly) == this);
|
|
|
|
TypeWrapper wrapper = GetLoader(type.Assembly).CreateWrapperForAssemblyType(type);
|
|
if (wrapper != null)
|
|
{
|
|
if (type.IsGenericType && !type.IsGenericTypeDefinition)
|
|
{
|
|
// in the case of "magic" implementation generic type instances we'll end up here as well,
|
|
// but then wrapper.GetClassLoader() will return this anyway
|
|
wrapper = wrapper.GetClassLoader().RegisterInitiatingLoader(wrapper);
|
|
}
|
|
else
|
|
{
|
|
wrapper = RegisterInitiatingLoader(wrapper);
|
|
}
|
|
if (wrapper.TypeAsTBD != type && (!wrapper.IsRemapped || wrapper.TypeAsBaseType != type))
|
|
{
|
|
// this really shouldn't happen, it means that we have two different types in our assembly that both
|
|
// have the same Java name
|
|
#if STATIC_COMPILER
|
|
throw new FatalCompilerErrorException(Message.AssemblyContainsDuplicateClassNames, type.FullName, wrapper.TypeAsTBD.FullName, wrapper.Name, type.Assembly.FullName);
|
|
#else
|
|
string msg = String.Format("\nType \"{0}\" and \"{1}\" both map to the same name \"{2}\".\n", type.FullName, wrapper.TypeAsTBD.FullName, wrapper.Name);
|
|
JVM.CriticalFailure(msg, null);
|
|
#endif
|
|
}
|
|
return wrapper;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
protected override TypeWrapper LoadClassImpl(string name, LoadMode mode)
|
|
{
|
|
TypeWrapper tw = FindLoadedClass(name);
|
|
if (tw != null)
|
|
{
|
|
return tw;
|
|
}
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR && !FIRST_PASS
|
|
while (hasCustomClassLoader != 2)
|
|
{
|
|
if (hasCustomClassLoader == 0)
|
|
{
|
|
Type customClassLoader = GetCustomClassLoaderType();
|
|
if (customClassLoader == null)
|
|
{
|
|
hasCustomClassLoader = 2;
|
|
break;
|
|
}
|
|
WaitInitializeJavaClassLoader(customClassLoader);
|
|
hasCustomClassLoader = 1;
|
|
}
|
|
return base.LoadClassImpl(name, mode);
|
|
}
|
|
#endif
|
|
return LoadBootstrapIfNonJavaAssembly(name)
|
|
?? LoadDynamic(name)
|
|
?? FindOrLoadGenericClass(name, LoadMode.LoadOrNull);
|
|
}
|
|
|
|
// this implements ikvm.runtime.AssemblyClassLoader.loadClass(),
|
|
// so unlike the above LoadClassImpl, it doesn't delegate to Java,
|
|
// but otherwise it should be the same algorithm
|
|
internal TypeWrapper LoadClass(string name)
|
|
{
|
|
return FindLoadedClass(name)
|
|
?? LoadBootstrapIfNonJavaAssembly(name)
|
|
?? LoadDynamic(name)
|
|
?? FindOrLoadGenericClass(name, LoadMode.LoadOrNull);
|
|
}
|
|
|
|
private TypeWrapper LoadBootstrapIfNonJavaAssembly(string name)
|
|
{
|
|
if (!assemblyLoader.HasJavaModule)
|
|
{
|
|
return GetBootstrapClassLoader().LoadClassByDottedNameFast(name);
|
|
}
|
|
return null;
|
|
}
|
|
|
|
private TypeWrapper LoadDynamic(string name)
|
|
{
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR && !FIRST_PASS
|
|
string classFile = name.Replace('.', '/') + ".class";
|
|
foreach (Resource res in GetBootstrapClassLoader().FindDelegateResources(classFile))
|
|
{
|
|
return res.Loader.DefineDynamic(name, res.URL);
|
|
}
|
|
foreach (Resource res in FindDelegateResources(classFile))
|
|
{
|
|
return res.Loader.DefineDynamic(name, res.URL);
|
|
}
|
|
foreach (java.net.URL url in FindResources(classFile))
|
|
{
|
|
return DefineDynamic(name, url);
|
|
}
|
|
#endif
|
|
return null;
|
|
}
|
|
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR && !FIRST_PASS
|
|
private TypeWrapper DefineDynamic(string name, java.net.URL url)
|
|
{
|
|
using (java.io.InputStream inp = url.openStream())
|
|
{
|
|
byte[] buf = new byte[inp.available()];
|
|
for (int pos = 0; pos < buf.Length; )
|
|
{
|
|
int read = inp.read(buf, pos, buf.Length - pos);
|
|
if (read <= 0)
|
|
{
|
|
break;
|
|
}
|
|
pos += read;
|
|
}
|
|
return TypeWrapper.FromClass(Java_java_lang_ClassLoader.defineClass1(GetJavaClassLoader(), name, buf, 0, buf.Length, GetProtectionDomain(), null));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
private TypeWrapper FindReferenced(string name)
|
|
{
|
|
for (int i = 0; i < delegates.Length; i++)
|
|
{
|
|
if (delegates[i] == null)
|
|
{
|
|
Assembly asm = LoadAssemblyOrClearName(ref references[i], false);
|
|
if (asm != null)
|
|
{
|
|
delegates[i] = AssemblyClassLoader.FromAssembly(asm);
|
|
}
|
|
}
|
|
if (delegates[i] != null)
|
|
{
|
|
TypeWrapper tw = delegates[i].DoLoad(name);
|
|
if (tw != null)
|
|
{
|
|
return RegisterInitiatingLoader(tw);
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR
|
|
private static java.net.URL MakeResourceURL(Assembly asm, string name)
|
|
{
|
|
#if FIRST_PASS
|
|
return null;
|
|
#else
|
|
return new java.io.File(VirtualFileSystem.GetAssemblyResourcesPath(asm) + name).toURI().toURL();
|
|
#endif
|
|
}
|
|
|
|
internal IEnumerable<java.net.URL> FindResources(string unmangledName)
|
|
{
|
|
if (ReflectUtil.IsDynamicAssembly(assemblyLoader.Assembly))
|
|
{
|
|
yield break;
|
|
}
|
|
bool found = false;
|
|
#if !FIRST_PASS
|
|
java.util.Enumeration urls = assemblyLoader.FindResources(unmangledName);
|
|
while (urls.hasMoreElements())
|
|
{
|
|
found = true;
|
|
yield return (java.net.URL)urls.nextElement();
|
|
}
|
|
#endif
|
|
if (!assemblyLoader.HasJavaModule)
|
|
{
|
|
if (unmangledName != "" && assemblyLoader.Assembly.GetManifestResourceInfo(unmangledName) != null)
|
|
{
|
|
found = true;
|
|
yield return MakeResourceURL(assemblyLoader.Assembly, unmangledName);
|
|
}
|
|
foreach (JavaResourceAttribute res in assemblyLoader.Assembly.GetCustomAttributes(typeof(IKVM.Attributes.JavaResourceAttribute), false))
|
|
{
|
|
if (res.JavaName == unmangledName)
|
|
{
|
|
found = true;
|
|
yield return MakeResourceURL(assemblyLoader.Assembly, res.ResourceName);
|
|
}
|
|
}
|
|
}
|
|
string name = JVM.MangleResourceName(unmangledName);
|
|
if (assemblyLoader.Assembly.GetManifestResourceInfo(name) != null)
|
|
{
|
|
found = true;
|
|
yield return MakeResourceURL(assemblyLoader.Assembly, name);
|
|
}
|
|
LazyInitExports();
|
|
if (exports != null)
|
|
{
|
|
List<int> assemblies;
|
|
if (exports.TryGetValue(JVM.PersistableHash(unmangledName), out assemblies))
|
|
{
|
|
foreach (int index in assemblies)
|
|
{
|
|
AssemblyLoader loader = exportedAssemblies[index];
|
|
if (loader == null)
|
|
{
|
|
Assembly asm = LoadAssemblyOrClearName(ref exportedAssemblyNames[index], true);
|
|
if (asm == null)
|
|
{
|
|
continue;
|
|
}
|
|
loader = exportedAssemblies[index] = GetLoaderForExportedAssembly(asm);
|
|
}
|
|
#if !FIRST_PASS
|
|
urls = loader.FindResources(unmangledName);
|
|
while (urls.hasMoreElements())
|
|
{
|
|
found = true;
|
|
yield return (java.net.URL)urls.nextElement();
|
|
}
|
|
#endif
|
|
if (loader.Assembly.GetManifestResourceInfo(name) != null)
|
|
{
|
|
found = true;
|
|
yield return MakeResourceURL(loader.Assembly, name);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!found && unmangledName.EndsWith(".class", StringComparison.Ordinal) && unmangledName.IndexOf('.') == unmangledName.Length - 6)
|
|
{
|
|
TypeWrapper tw = FindLoadedClass(unmangledName.Substring(0, unmangledName.Length - 6).Replace('/', '.'));
|
|
if (tw != null && tw.GetClassLoader() == this && !tw.IsArray && !tw.IsDynamic)
|
|
{
|
|
#if !FIRST_PASS
|
|
yield return new java.io.File(VirtualFileSystem.GetAssemblyClassesPath(assemblyLoader.Assembly) + unmangledName).toURI().toURL();
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
protected struct Resource
|
|
{
|
|
internal readonly java.net.URL URL;
|
|
internal readonly AssemblyClassLoader Loader;
|
|
|
|
internal Resource(java.net.URL url, AssemblyClassLoader loader)
|
|
{
|
|
this.URL = url;
|
|
this.Loader = loader;
|
|
}
|
|
}
|
|
|
|
protected IEnumerable<Resource> FindDelegateResources(string name)
|
|
{
|
|
LazyInitExports();
|
|
for (int i = 0; i < delegates.Length; i++)
|
|
{
|
|
if (delegates[i] == null)
|
|
{
|
|
Assembly asm = LoadAssemblyOrClearName(ref references[i], false);
|
|
if (asm != null)
|
|
{
|
|
delegates[i] = AssemblyClassLoader.FromAssembly(asm);
|
|
}
|
|
}
|
|
if (delegates[i] != null && delegates[i] != GetBootstrapClassLoader())
|
|
{
|
|
foreach (java.net.URL url in delegates[i].FindResources(name))
|
|
{
|
|
yield return new Resource(url, delegates[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
internal virtual IEnumerable<java.net.URL> GetResources(string name)
|
|
{
|
|
foreach (java.net.URL url in GetBootstrapClassLoader().GetResources(name))
|
|
{
|
|
yield return url;
|
|
}
|
|
foreach (Resource res in FindDelegateResources(name))
|
|
{
|
|
yield return res.URL;
|
|
}
|
|
foreach (java.net.URL url in FindResources(name))
|
|
{
|
|
yield return url;
|
|
}
|
|
}
|
|
#endif // !STATIC_COMPILER
|
|
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
private sealed class JavaClassLoaderConstructionInProgress
|
|
{
|
|
internal readonly Thread Thread = Thread.CurrentThread;
|
|
internal java.lang.ClassLoader javaClassLoader;
|
|
internal int recursion;
|
|
}
|
|
|
|
private java.lang.ClassLoader WaitInitializeJavaClassLoader(Type customClassLoader)
|
|
{
|
|
Interlocked.CompareExchange(ref jclcip, new JavaClassLoaderConstructionInProgress(), null);
|
|
JavaClassLoaderConstructionInProgress curr = jclcip;
|
|
if (curr != null)
|
|
{
|
|
if (curr.Thread == Thread.CurrentThread)
|
|
{
|
|
if (curr.javaClassLoader != null)
|
|
{
|
|
// we were recursively invoked during the class loader construction,
|
|
// so we have to return the partialy constructed class loader
|
|
return curr.javaClassLoader;
|
|
}
|
|
curr.recursion++;
|
|
try
|
|
{
|
|
if (javaClassLoader == null)
|
|
{
|
|
InitializeJavaClassLoader(curr, customClassLoader);
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
// We only publish the class loader from the outer most invocation, otherwise
|
|
// an invocation of getClassLoader in the static initializer or constructor
|
|
// of the custom class loader would result in prematurely publishing it.
|
|
if (--curr.recursion == 0)
|
|
{
|
|
lock (this)
|
|
{
|
|
jclcip = null;
|
|
Monitor.PulseAll(this);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lock (this)
|
|
{
|
|
while (jclcip != null)
|
|
{
|
|
Monitor.Wait(this);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return javaClassLoader;
|
|
}
|
|
|
|
internal override java.lang.ClassLoader GetJavaClassLoader()
|
|
{
|
|
if (javaClassLoader == null)
|
|
{
|
|
return WaitInitializeJavaClassLoader(GetCustomClassLoaderType());
|
|
}
|
|
return javaClassLoader;
|
|
}
|
|
|
|
internal virtual java.security.ProtectionDomain GetProtectionDomain()
|
|
{
|
|
if (protectionDomain == null)
|
|
{
|
|
Interlocked.CompareExchange(ref protectionDomain, new java.security.ProtectionDomain(assemblyLoader.Assembly), null);
|
|
}
|
|
return protectionDomain;
|
|
}
|
|
#endif
|
|
|
|
protected override TypeWrapper FindLoadedClassLazy(string name)
|
|
{
|
|
return DoLoad(name)
|
|
?? FindReferenced(name)
|
|
?? FindOrLoadGenericClass(name, LoadMode.Find);
|
|
}
|
|
|
|
internal override bool InternalsVisibleToImpl(TypeWrapper wrapper, TypeWrapper friend)
|
|
{
|
|
ClassLoaderWrapper other = friend.GetClassLoader();
|
|
if (this == other)
|
|
{
|
|
#if STATIC_COMPILER || STUB_GENERATOR
|
|
return true;
|
|
#else
|
|
// we're OK if the type being accessed (wrapper) is a dynamic type
|
|
// or if the dynamic assembly has internal access
|
|
return GetAssembly(wrapper).Equals(GetTypeWrapperFactory().ModuleBuilder.Assembly)
|
|
|| GetTypeWrapperFactory().HasInternalAccess;
|
|
#endif
|
|
}
|
|
AssemblyName otherName;
|
|
#if STATIC_COMPILER
|
|
CompilerClassLoader ccl = other as CompilerClassLoader;
|
|
if (ccl == null)
|
|
{
|
|
return false;
|
|
}
|
|
otherName = ccl.GetAssemblyName();
|
|
#else
|
|
AssemblyClassLoader acl = other as AssemblyClassLoader;
|
|
if (acl == null)
|
|
{
|
|
return false;
|
|
}
|
|
otherName = acl.GetAssembly(friend).GetName();
|
|
#endif
|
|
return GetLoader(GetAssembly(wrapper)).InternalsVisibleTo(otherName);
|
|
}
|
|
|
|
// this method should not be used with dynamic Java assemblies
|
|
internal static AssemblyClassLoader FromAssembly(Assembly assembly)
|
|
{
|
|
AssemblyClassLoader loader;
|
|
lock (assemblyClassLoaders)
|
|
{
|
|
assemblyClassLoaders.TryGetValue(assembly, out loader);
|
|
}
|
|
if (loader == null)
|
|
{
|
|
loader = Create(assembly);
|
|
lock (assemblyClassLoaders)
|
|
{
|
|
AssemblyClassLoader existing;
|
|
if (assemblyClassLoaders.TryGetValue(assembly, out existing))
|
|
{
|
|
// another thread won the race to create the class loader
|
|
loader = existing;
|
|
}
|
|
else
|
|
{
|
|
assemblyClassLoaders.Add(assembly, loader);
|
|
}
|
|
}
|
|
}
|
|
return loader;
|
|
}
|
|
|
|
private static AssemblyClassLoader Create(Assembly assembly)
|
|
{
|
|
// If the assembly is a part of a multi-assembly shared class loader,
|
|
// it will export the __<MainAssembly> type from the main assembly in the group.
|
|
Type forwarder = assembly.GetType("__<MainAssembly>");
|
|
if (forwarder != null)
|
|
{
|
|
Assembly mainAssembly = forwarder.Assembly;
|
|
if (mainAssembly != assembly)
|
|
{
|
|
return FromAssembly(mainAssembly);
|
|
}
|
|
}
|
|
#if STATIC_COMPILER
|
|
if (JVM.CoreAssembly == null && CompilerClassLoader.IsCoreAssembly(assembly))
|
|
{
|
|
JVM.CoreAssembly = assembly;
|
|
ClassLoaderWrapper.LoadRemappedTypes();
|
|
}
|
|
#endif
|
|
if (assembly == JVM.CoreAssembly)
|
|
{
|
|
// This cast is necessary for ikvmc and a no-op for the runtime.
|
|
// Note that the cast cannot fail, because ikvmc will only return a non AssemblyClassLoader
|
|
// from GetBootstrapClassLoader() when compiling the core assembly and in that case JVM.CoreAssembly
|
|
// will be null.
|
|
return (AssemblyClassLoader)GetBootstrapClassLoader();
|
|
}
|
|
return new AssemblyClassLoader(assembly);
|
|
}
|
|
|
|
internal void AddDelegate(AssemblyClassLoader acl)
|
|
{
|
|
LazyInitExports();
|
|
lock (this)
|
|
{
|
|
delegates = ArrayUtil.Concat(delegates, acl);
|
|
}
|
|
}
|
|
|
|
#if !STATIC_COMPILER && !STUB_GENERATOR
|
|
internal List<KeyValuePair<string, string[]>> GetPackageInfo()
|
|
{
|
|
List<KeyValuePair<string, string[]>> list = new List<KeyValuePair<string, string[]>>();
|
|
foreach (Module m in assemblyLoader.Assembly.GetModules(false))
|
|
{
|
|
object[] attr = m.GetCustomAttributes(typeof(PackageListAttribute), false);
|
|
foreach (PackageListAttribute p in attr)
|
|
{
|
|
list.Add(new KeyValuePair<string, string[]>(p.jar, p.packages));
|
|
}
|
|
}
|
|
return list;
|
|
}
|
|
#endif
|
|
|
|
#if !STATIC_COMPILER && !FIRST_PASS && !STUB_GENERATOR
|
|
private Type GetCustomClassLoaderType()
|
|
{
|
|
LoadCustomClassLoaderRedirects();
|
|
Assembly assembly = assemblyLoader.Assembly;
|
|
string assemblyName = assembly.FullName;
|
|
foreach (KeyValuePair<string, string> kv in customClassLoaderRedirects)
|
|
{
|
|
string asm = kv.Key;
|
|
// FXBUG
|
|
// We only support matching on the assembly's simple name,
|
|
// because there appears to be no viable alternative.
|
|
// There is AssemblyName.ReferenceMatchesDefinition()
|
|
// but it is completely broken.
|
|
if (assemblyName.StartsWith(asm + ","))
|
|
{
|
|
try
|
|
{
|
|
return Type.GetType(kv.Value, true);
|
|
}
|
|
catch (Exception x)
|
|
{
|
|
Tracer.Error(Tracer.Runtime, "Unable to load custom class loader {0} specified in app.config for assembly {1}: {2}", kv.Value, assembly, x);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
object[] attribs = assembly.GetCustomAttributes(typeof(CustomAssemblyClassLoaderAttribute), false);
|
|
if (attribs.Length == 1)
|
|
{
|
|
return ((CustomAssemblyClassLoaderAttribute)attribs[0]).Type;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
private void InitializeJavaClassLoader(JavaClassLoaderConstructionInProgress jclcip, Type customClassLoaderClass)
|
|
{
|
|
Assembly assembly = assemblyLoader.Assembly;
|
|
{
|
|
if (customClassLoaderClass != null)
|
|
{
|
|
try
|
|
{
|
|
if (!customClassLoaderClass.IsPublic && !customClassLoaderClass.Assembly.Equals(assembly))
|
|
{
|
|
throw new Exception("Type not accessible");
|
|
}
|
|
ConstructorInfo customClassLoaderCtor = customClassLoaderClass.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, new Type[] { typeof(Assembly) }, null);
|
|
if (customClassLoaderCtor == null)
|
|
{
|
|
throw new Exception("No constructor");
|
|
}
|
|
if (!customClassLoaderCtor.IsPublic && !customClassLoaderClass.Assembly.Equals(assembly))
|
|
{
|
|
customClassLoaderCtor = null;
|
|
throw new Exception("Constructor not accessible");
|
|
}
|
|
// NOTE we're creating an uninitialized instance of the custom class loader here, so that getClassLoader will return the proper object
|
|
// when it is called during the construction of the custom class loader later on. This still doesn't make it safe to use the custom
|
|
// class loader before it is constructed, but at least the object instance is available and should anyone cache it, they will get the
|
|
// right object to use later on.
|
|
// Note that creating the unitialized instance will (unfortunately) trigger the static initializer. The static initializer can
|
|
// trigger a call to getClassLoader(), which means we can end up here recursively.
|
|
java.lang.ClassLoader newJavaClassLoader = (java.lang.ClassLoader)GetUninitializedObject(customClassLoaderClass);
|
|
if (jclcip.javaClassLoader == null) // check if we weren't invoked recursively and the nested invocation already did the work
|
|
{
|
|
jclcip.javaClassLoader = newJavaClassLoader;
|
|
SetWrapperForClassLoader(jclcip.javaClassLoader, this);
|
|
DoPrivileged(new CustomClassLoaderCtorCaller(customClassLoaderCtor, jclcip.javaClassLoader, assembly));
|
|
Tracer.Info(Tracer.Runtime, "Created custom assembly class loader {0} for assembly {1}", customClassLoaderClass.FullName, assembly);
|
|
}
|
|
else
|
|
{
|
|
// we didn't initialize the object, so there is no need to finalize it
|
|
GC.SuppressFinalize(newJavaClassLoader);
|
|
}
|
|
}
|
|
catch (Exception x)
|
|
{
|
|
Tracer.Error(Tracer.Runtime, "Unable to create custom assembly class loader {0} for {1}: {2}", customClassLoaderClass.FullName, assembly, x);
|
|
}
|
|
}
|
|
}
|
|
if (jclcip.javaClassLoader == null)
|
|
{
|
|
jclcip.javaClassLoader = new ikvm.runtime.AssemblyClassLoader();
|
|
SetWrapperForClassLoader(jclcip.javaClassLoader, this);
|
|
}
|
|
// finally we publish the class loader for other threads to see
|
|
Thread.MemoryBarrier();
|
|
javaClassLoader = jclcip.javaClassLoader;
|
|
}
|
|
|
|
// separate method to avoid LinkDemand killing the caller
|
|
// and to bridge transparent -> critical boundary
|
|
[System.Security.SecuritySafeCritical]
|
|
private static object GetUninitializedObject(Type type)
|
|
{
|
|
return FormatterServices.GetUninitializedObject(type);
|
|
}
|
|
|
|
private static void LoadCustomClassLoaderRedirects()
|
|
{
|
|
if (customClassLoaderRedirects == null)
|
|
{
|
|
Dictionary<string, string> dict = new Dictionary<string, string>();
|
|
try
|
|
{
|
|
foreach (string key in System.Configuration.ConfigurationManager.AppSettings.AllKeys)
|
|
{
|
|
const string prefix = "ikvm-classloader:";
|
|
if (key.StartsWith(prefix))
|
|
{
|
|
dict[key.Substring(prefix.Length)] = System.Configuration.ConfigurationManager.AppSettings.Get(key);
|
|
}
|
|
}
|
|
}
|
|
catch (Exception x)
|
|
{
|
|
Tracer.Error(Tracer.Runtime, "Error while reading custom class loader redirects: {0}", x);
|
|
}
|
|
finally
|
|
{
|
|
Interlocked.CompareExchange(ref customClassLoaderRedirects, dict, null);
|
|
}
|
|
}
|
|
}
|
|
|
|
private sealed class CustomClassLoaderCtorCaller : java.security.PrivilegedAction
|
|
{
|
|
private ConstructorInfo ctor;
|
|
private object classLoader;
|
|
private Assembly assembly;
|
|
|
|
internal CustomClassLoaderCtorCaller(ConstructorInfo ctor, object classLoader, Assembly assembly)
|
|
{
|
|
this.ctor = ctor;
|
|
this.classLoader = classLoader;
|
|
this.assembly = assembly;
|
|
}
|
|
|
|
public object run()
|
|
{
|
|
ctor.Invoke(classLoader, new object[] { assembly });
|
|
return null;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
sealed class BootstrapClassLoader : AssemblyClassLoader
|
|
{
|
|
internal BootstrapClassLoader()
|
|
: base(JVM.CoreAssembly, new string[] {
|
|
typeof(object).Assembly.FullName, // mscorlib
|
|
typeof(System.Uri).Assembly.FullName // System
|
|
})
|
|
{
|
|
}
|
|
|
|
internal override TypeWrapper GetWrapperFromAssemblyType(Type type)
|
|
{
|
|
// we have to special case the fake types here
|
|
if (type.IsGenericType && !type.IsGenericTypeDefinition)
|
|
{
|
|
TypeWrapper outer = ClassLoaderWrapper.GetWrapperFromType(type.GetGenericArguments()[0]);
|
|
foreach (TypeWrapper inner in outer.InnerClasses)
|
|
{
|
|
if (inner.TypeAsTBD == type)
|
|
{
|
|
return inner;
|
|
}
|
|
foreach (TypeWrapper inner2 in inner.InnerClasses)
|
|
{
|
|
if (inner2.TypeAsTBD == type)
|
|
{
|
|
return inner2;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
return base.GetWrapperFromAssemblyType(type);
|
|
}
|
|
|
|
protected override void CheckProhibitedPackage(string className)
|
|
{
|
|
}
|
|
|
|
#if !FIRST_PASS && !STATIC_COMPILER && !STUB_GENERATOR
|
|
internal override java.lang.ClassLoader GetJavaClassLoader()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
internal override java.security.ProtectionDomain GetProtectionDomain()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
internal override IEnumerable<java.net.URL> GetResources(string name)
|
|
{
|
|
foreach (java.net.URL url in FindResources(name))
|
|
{
|
|
yield return url;
|
|
}
|
|
foreach (Resource res in FindDelegateResources(name))
|
|
{
|
|
yield return res.URL;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|