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125 lines
3.4 KiB
125 lines
3.4 KiB
using Mono.Cecil;
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using System;
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using System.IO;
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using System.Reflection;
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namespace IPA.Injector
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{
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internal class VirtualizedModule
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{
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private readonly FileInfo file;
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private ModuleDefinition module;
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public static VirtualizedModule Load(string engineFile)
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{
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return new VirtualizedModule(engineFile);
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}
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private VirtualizedModule(string assemblyFile)
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{
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file = new FileInfo(assemblyFile);
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LoadModules();
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}
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private void LoadModules()
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{
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module = ModuleDefinition.ReadModule(file.FullName, new ReaderParameters
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{
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ReadWrite = false,
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InMemory = true,
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ReadingMode = ReadingMode.Immediate
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});
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}
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~VirtualizedModule()
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{
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module?.Dispose();
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}
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/// <summary>
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///
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/// </summary>
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public void Virtualize(AssemblyName selfName, Action beforeChangeCallback = null)
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{
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var changed = false;
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var virtualize = true;
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foreach (var r in module.AssemblyReferences)
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{
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if (r.Name == selfName.Name)
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{
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virtualize = false;
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if (r.Version != selfName.Version)
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{
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r.Version = selfName.Version;
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changed = true;
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}
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}
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}
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if (virtualize)
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{
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changed = true;
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module.AssemblyReferences.Add(new AssemblyNameReference(selfName.Name, selfName.Version));
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foreach (var type in module.Types)
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{
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VirtualizeType(type);
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}
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}
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if (changed)
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{
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beforeChangeCallback?.Invoke();
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module.Write(file.FullName);
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}
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}
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private void VirtualizeType(TypeDefinition type)
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{
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if(type.IsSealed)
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{
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// Unseal
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type.IsSealed = false;
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}
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if (type.IsInterface) return;
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if (type.IsAbstract) return;
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// These two don't seem to work.
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if (type.Name == "SceneControl" || type.Name == "ConfigUI") return;
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// Take care of sub types
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foreach (var subType in type.NestedTypes)
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{
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VirtualizeType(subType);
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}
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foreach (var method in type.Methods)
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{
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if (method.IsManaged
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&& method.IsIL
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&& !method.IsStatic
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&& !method.IsVirtual
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&& !method.IsAbstract
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&& !method.IsAddOn
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&& !method.IsConstructor
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&& !method.IsSpecialName
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&& !method.IsGenericInstance
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&& !method.HasOverrides)
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{
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method.IsVirtual = true;
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method.IsPublic = true;
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method.IsPrivate = false;
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method.IsNewSlot = true;
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method.IsHideBySig = true;
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}
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}
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foreach (var field in type.Fields)
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{
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if (field.IsPrivate) field.IsFamily = true;
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}
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}
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}
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}
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