initial commit

2026-08-27 11:21:58 -06:00
commit c21fb61050
336 changed files with 74161 additions and 0 deletions
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+using System.Collections.Generic;
+using System.Linq;
+using dnlib.DotNet;
+using dnlib.DotNet.Emit;
+using Obfuscator.Helper;
+
+namespace Obfuscator.Obfuscator.Local2Field;
+
+internal class Local2Field
+{
+	private static Dictionary<Local, FieldDef> _convertedLocals = new Dictionary<Local, FieldDef>();
+
+	public static void Execute(ModuleDef moduleDef)
+	{
+		foreach (TypeDef item in moduleDef.Types.Where((TypeDef x) => x != moduleDef.GlobalType))
+		{
+			foreach (MethodDef item2 in item.Methods.Where((MethodDef x) => x.HasBody && x.Body.HasInstructions && !x.IsConstructor))
+			{
+				_convertedLocals = new Dictionary<Local, FieldDef>();
+				Process(moduleDef, item2);
+			}
+		}
+	}
+
+	private static void Process(ModuleDef module, MethodDef meth)
+	{
+		meth.Body.SimplifyMacros(meth.Parameters);
+		foreach (Instruction instruction in meth.Body.Instructions)
+		{
+			if (instruction.Operand is Local local)
+			{
+				FieldDef fieldDef;
+				if (!_convertedLocals.ContainsKey(local))
+				{
+					fieldDef = new FieldDefUser(Methods.GenerateString(), new FieldSig(local.Type), FieldAttributes.Public | FieldAttributes.Static);
+					module.GlobalType.Fields.Add(fieldDef);
+					_convertedLocals.Add(local, fieldDef);
+				}
+				else
+				{
+					fieldDef = _convertedLocals[local];
+				}
+				switch (instruction.OpCode?.Code)
+				{
+				case Code.Ldloc:
+					instruction.OpCode = OpCodes.Ldsfld;
+					break;
+				case Code.Ldloca:
+					instruction.OpCode = OpCodes.Ldsflda;
+					break;
+				case Code.Stloc:
+					instruction.OpCode = OpCodes.Stsfld;
+					break;
+				default:
+					instruction.OpCode = null;
+					break;
+				}
+				instruction.Operand = fieldDef;
+			}
+		}
+		_convertedLocals.ToList().ForEach(delegate(KeyValuePair<Local, FieldDef> x)
+		{
+			meth.Body.Variables.Remove(x.Key);
+		});
+		_convertedLocals = new Dictionary<Local, FieldDef>();
+	}
+}