169 lines
5.6 KiB
C#
169 lines
5.6 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;
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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.renamer.asmmodules {
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class Module : IResolver {
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IObfuscatedFile obfuscatedFile;
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TypeDefDict types = new TypeDefDict();
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MemberRefFinder memberRefFinder;
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IList<RefToDef<TypeReference, TypeDefinition>> typeRefsToRename = new List<RefToDef<TypeReference, TypeDefinition>>();
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IList<RefToDef<MethodReference, MethodDefinition>> methodRefsToRename = new List<RefToDef<MethodReference, MethodDefinition>>();
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IList<RefToDef<FieldReference, FieldDefinition>> fieldRefsToRename = new List<RefToDef<FieldReference, FieldDefinition>>();
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List<MethodDefinition> allMethods;
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public class RefToDef<R, D> where R : MemberReference where D : R {
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public R reference;
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public D definition;
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public RefToDef(R reference, D definition) {
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this.reference = reference;
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this.definition = definition;
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}
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}
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public IEnumerable<RefToDef<TypeReference, TypeDefinition>> TypeRefsToRename {
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get { return typeRefsToRename; }
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}
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public IEnumerable<RefToDef<MethodReference, MethodDefinition>> MethodRefsToRename {
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get { return methodRefsToRename; }
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}
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public IEnumerable<RefToDef<FieldReference, FieldDefinition>> FieldRefsToRename {
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get { return fieldRefsToRename; }
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}
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public IObfuscatedFile ObfuscatedFile {
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get { return obfuscatedFile; }
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}
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public string Filename {
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get { return obfuscatedFile.Filename; }
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}
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public ModuleDefinition ModuleDefinition {
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get { return obfuscatedFile.ModuleDefinition; }
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}
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public Module(IObfuscatedFile obfuscatedFile) {
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this.obfuscatedFile = obfuscatedFile;
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}
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public IEnumerable<TypeDef> getAllTypes() {
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return types.getValues();
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}
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public IEnumerable<MethodDefinition> getAllMethods() {
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return allMethods;
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}
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public void findAllMemberReferences(ref int typeIndex) {
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memberRefFinder = new MemberRefFinder();
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memberRefFinder.findAll(ModuleDefinition, ModuleDefinition.Types);
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allMethods = new List<MethodDefinition>(memberRefFinder.methodDefinitions.Keys);
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var allTypesList = new List<TypeDef>();
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foreach (var type in memberRefFinder.typeDefinitions.Keys) {
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var typeDef = new TypeDef(type, this, typeIndex++);
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types.add(typeDef);
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allTypesList.Add(typeDef);
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typeDef.addMembers();
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}
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var allTypesCopy = new List<TypeDef>(allTypesList);
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var typeToIndex = new Dictionary<TypeDefinition, int>();
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for (int i = 0; i < allTypesList.Count; i++)
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typeToIndex[allTypesList[i].TypeDefinition] = i;
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foreach (var typeDef in allTypesList) {
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if (typeDef.TypeDefinition.NestedTypes == null)
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continue;
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foreach (var nestedTypeDefinition in typeDef.TypeDefinition.NestedTypes) {
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int index = typeToIndex[nestedTypeDefinition];
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var nestedTypeDef = allTypesCopy[index];
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allTypesCopy[index] = null;
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if (nestedTypeDef == null) // Impossible
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throw new ApplicationException("Nested type belongs to two or more types");
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typeDef.add(nestedTypeDef);
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nestedTypeDef.NestingType = typeDef;
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}
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}
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}
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public void resolveAllRefs(IResolver resolver) {
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foreach (var typeRef in memberRefFinder.typeReferences.Keys) {
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var typeDef = resolver.resolve(typeRef);
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if (typeDef != null)
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typeRefsToRename.Add(new RefToDef<TypeReference, TypeDefinition>(typeRef, typeDef.TypeDefinition));
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}
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foreach (var methodRef in memberRefFinder.methodReferences.Keys) {
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var methodDef = resolver.resolve(methodRef);
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if (methodDef != null)
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methodRefsToRename.Add(new RefToDef<MethodReference, MethodDefinition>(methodRef, methodDef.MethodDefinition));
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}
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foreach (var fieldRef in memberRefFinder.fieldReferences.Keys) {
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var fieldDef = resolver.resolve(fieldRef);
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if (fieldDef != null)
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fieldRefsToRename.Add(new RefToDef<FieldReference, FieldDefinition>(fieldRef, fieldDef.FieldDefinition));
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}
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}
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public void onTypesRenamed() {
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var newTypes = new TypeDefDict();
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foreach (var typeDef in types.getValues()) {
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typeDef.onTypesRenamed();
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newTypes.add(typeDef);
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}
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types = newTypes;
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}
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static TypeReference getNonGenericTypeReference(TypeReference typeReference) {
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if (typeReference == null)
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return null;
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if (!typeReference.IsGenericInstance)
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return typeReference;
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var type = (GenericInstanceType)typeReference;
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return type.ElementType;
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}
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public TypeDef resolve(TypeReference typeReference) {
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return this.types.find(getNonGenericTypeReference(typeReference));
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}
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public MethodDef resolve(MethodReference methodReference) {
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var typeDef = this.types.find(getNonGenericTypeReference(methodReference.DeclaringType));
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if (typeDef == null)
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return null;
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return typeDef.find(methodReference);
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}
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public FieldDef resolve(FieldReference fieldReference) {
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var typeDef = this.types.find(getNonGenericTypeReference(fieldReference.DeclaringType));
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if (typeDef == null)
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return null;
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return typeDef.find(fieldReference);
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}
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}
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}
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