108 lines
3.0 KiB
C#
108 lines
3.0 KiB
C#
/*
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Copyright (C) 2011-2012 de4dot@gmail.com
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This file is part of de4dot.
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de4dot is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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de4dot is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with de4dot. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.Collections.Generic;
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using Mono.Cecil;
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using de4dot.blocks;
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namespace de4dot.code {
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class ExternalAssembly {
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AssemblyDefinition asmDef;
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public ExternalAssembly(AssemblyDefinition asmDef) {
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this.asmDef = asmDef;
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}
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public TypeDefinition resolve(TypeReference type) {
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foreach (var module in asmDef.Modules) {
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var typeDef = DotNetUtils.getType(module, type);
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if (typeDef != null)
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return typeDef;
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}
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return null;
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}
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public void unload(string asmFullName) {
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foreach (var module in asmDef.Modules) {
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DotNetUtils.typeCaches.invalidate(module);
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AssemblyResolver.Instance.removeModule(module);
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}
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AssemblyResolver.Instance.removeModule(asmFullName);
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}
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}
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// Loads assemblies that aren't renamed
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class ExternalAssemblies {
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Dictionary<string, ExternalAssembly> assemblies = new Dictionary<string, ExternalAssembly>();
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ExternalAssembly load(TypeReference type) {
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var asmFullName = DotNetUtils.getFullAssemblyName(type);
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ExternalAssembly asm;
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if (assemblies.TryGetValue(asmFullName, out asm))
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return asm;
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AssemblyDefinition asmDef = null;
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try {
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asmDef = AssemblyResolver.Instance.Resolve(asmFullName);
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}
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catch (ResolutionException) {
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}
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catch (AssemblyResolutionException) {
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}
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if (asmDef == null) {
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// If we can't load it now, we can't load it later. Make sure above code returns null.
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assemblies[asmFullName] = null;
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Log.w("Could not load assembly {0}", asmFullName);
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return null;
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}
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if (assemblies.ContainsKey(asmDef.Name.FullName)) {
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assemblies[asmFullName] = assemblies[asmDef.Name.FullName];
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return assemblies[asmDef.Name.FullName];
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}
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if (asmFullName == asmDef.Name.FullName)
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Log.v("Loaded assembly {0}", asmFullName);
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else
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Log.v("Loaded assembly {0} (but wanted {1})", asmDef.Name.FullName, asmFullName);
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asm = new ExternalAssembly(asmDef);
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assemblies[asmFullName] = asm;
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assemblies[asmDef.Name.FullName] = asm;
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return asm;
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}
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public TypeDefinition resolve(TypeReference type) {
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var asm = load(type);
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if (asm == null)
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return null;
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return asm.resolve(type);
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}
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public void unloadAll() {
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foreach (var pair in assemblies) {
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if (pair.Value == null)
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continue;
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pair.Value.unload(pair.Key);
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}
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assemblies.Clear();
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}
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}
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}
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