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重命名 CustomAttribute Argument中的type和value

backup
walon 2025-04-07 23:38:11 +08:00
parent fdfe7800b4
commit 8d917bd213
1 changed files with 78 additions and 16 deletions
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94
Editor/Rename/SymbolRename.cs
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@ -1,7 +1,9 @@
using dnlib.DotNet;
using Obfuz.Rename;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data.OleDb;
using System.Linq;
using System.Runtime.InteropServices;
using UnityEditor.SceneManagement;
@ -35,18 +37,23 @@ namespace Obfuz
}
private bool MayRenameType(ElementType type)
{
return type == ElementType.Class || type == ElementType.ValueType || type == ElementType.Object || type == ElementType.SZArray;
}
private void CollectCArgumentWithTypeOf(IHasCustomAttribute meta, List<CustomAttributeInfo> customAttributes)
{
int index = 0;
foreach (CustomAttribute ca in meta.CustomAttributes)
{
List<CAArgument> arguments = null;
if (ca.ConstructorArguments.Any(a => a.Type.ElementType == ElementType.Class))
if (ca.ConstructorArguments.Any(a => MayRenameType(a.Type.ElementType)))
{
arguments = ca.ConstructorArguments.ToList();
}
List<CANamedArgument> namedArguments = null;
if (ca.NamedArguments.Any(a => a.ArgumentType.ElementType == ElementType.Class))
if (ca.NamedArguments.Any(a => MayRenameType(a.Type.ElementType)))
{
namedArguments = ca.NamedArguments.ToList();
}
@ -366,6 +373,69 @@ namespace Obfuz
}
}
private object RenameTypeSigOfValue(object oldValue, ModuleDefMD mod, string oldFullName)
{
if (oldValue == null)
{
return null;
}
if (oldValue.GetType().IsPrimitive)
{
return oldValue;
}
if (oldValue is string || oldValue is UTF8String)
{
return oldValue;
}
if (oldValue is TypeSig typeSig)
{
return RenameTypeSig(typeSig, mod, oldFullName);
}
if (oldValue is CAArgument caValue)
{
TypeSig newType = RenameTypeSig(caValue.Type, mod, oldFullName);
object newValue = RenameTypeSigOfValue(caValue.Value, mod, oldFullName);
if (newType != caValue.Type || newValue != caValue.Value)
{
return new CAArgument(newType, newValue);
}
return oldValue;
}
if (oldValue is List<CAArgument> oldArr)
{
bool anyChange = false;
var newArr = new List<CAArgument>();
foreach (CAArgument oldArg in oldArr)
{
if (TryRenameArgument(mod, oldFullName, oldArg, out var newArg))
{
anyChange = true;
newArr.Add(newArg);
}
else
{
newArr.Add(oldArg);
}
}
return anyChange ? newArr : oldArr;
}
throw new NotSupportedException($"type:{oldValue.GetType()} value:{oldValue}");
}
private bool TryRenameArgument(ModuleDefMD mod, string oldFullName, CAArgument oldArg, out CAArgument newArg)
{
TypeSig newType = RenameTypeSig(oldArg.Type, mod, oldFullName);
object newValue = RenameTypeSigOfValue(oldArg.Value, mod, oldFullName);
if (newType != oldArg.Type || oldArg.Value != newValue)
{
newArg = new CAArgument(newType, newValue);
return true;
}
newArg = default;
return false;
}
private void RenameTypeRefInCustomAttribute(ModuleDefMD referenceMeMod, ModuleDefMD mod, TypeDef typeDef, string oldFullName)
{
List<CustomAttributeInfo> customAttributes = _customAttributeArgumentsWithTypeByMods[referenceMeMod];
@ -378,14 +448,10 @@ namespace Obfuz
for (int i = 0; i < cai.arguments.Count; i++)
{
CAArgument oldArg = cai.arguments[i];
if (oldArg.Type.ElementType == ElementType.Class)
if (TryRenameArgument(mod, oldFullName, oldArg, out CAArgument newArg))
{
TypeSig newValue = RenameTypeSig((TypeSig)oldArg.Value, mod, oldFullName);
if (newValue != oldArg.Value)
{
anyChange = true;
cai.arguments[i] = new CAArgument(oldArg.Type, newValue);
}
anyChange = true;
cai.arguments[cai.index] = newArg;
}
}
}
@ -394,14 +460,10 @@ namespace Obfuz
for (int i = 0; i < cai.namedArguments.Count; i++)
{
CANamedArgument oldArg = cai.namedArguments[i];
if (oldArg.ArgumentType.ElementType == ElementType.Class)
if (TryRenameArgument(mod, oldFullName, oldArg.Argument, out var newArg))
{
TypeSig newValue = RenameTypeSig((TypeSig)oldArg.Value, mod, oldFullName);
if (newValue != oldArg.Value)
{
anyChange = true;
oldArg.Argument = new CAArgument(oldArg.Type, newValue);
}
anyChange = true;
oldArg.Argument = newArg;
}
}
}