129 lines
4.5 KiB
C#
129 lines
4.5 KiB
C#
using System;
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namespace ChocolArm64
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{
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using System.Reflection.Emit;
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static class ILGeneratorEx
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{
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public static void EmitLdc_I4(this ILGenerator Generator, int Value)
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{
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switch (Value)
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{
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case 0: Generator.Emit(OpCodes.Ldc_I4_0); break;
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case 1: Generator.Emit(OpCodes.Ldc_I4_1); break;
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case 2: Generator.Emit(OpCodes.Ldc_I4_2); break;
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case 3: Generator.Emit(OpCodes.Ldc_I4_3); break;
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case 4: Generator.Emit(OpCodes.Ldc_I4_4); break;
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case 5: Generator.Emit(OpCodes.Ldc_I4_5); break;
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case 6: Generator.Emit(OpCodes.Ldc_I4_6); break;
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case 7: Generator.Emit(OpCodes.Ldc_I4_7); break;
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case 8: Generator.Emit(OpCodes.Ldc_I4_8); break;
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case -1: Generator.Emit(OpCodes.Ldc_I4_M1); break;
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default: Generator.Emit(OpCodes.Ldc_I4, Value); break;
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}
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}
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public static void EmitLdarg(this ILGenerator Generator, int Index)
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{
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switch (Index)
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{
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case 0: Generator.Emit(OpCodes.Ldarg_0); break;
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case 1: Generator.Emit(OpCodes.Ldarg_1); break;
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case 2: Generator.Emit(OpCodes.Ldarg_2); break;
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case 3: Generator.Emit(OpCodes.Ldarg_3); break;
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default:
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if ((uint)Index <= byte.MaxValue)
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{
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Generator.Emit(OpCodes.Ldarg_S, (byte)Index);
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}
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else if ((uint)Index < ushort.MaxValue)
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{
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Generator.Emit(OpCodes.Ldarg, (short)Index);
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}
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else
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{
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throw new ArgumentOutOfRangeException(nameof(Index));
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}
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break;
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}
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}
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public static void EmitStarg(this ILGenerator Generator, int Index)
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{
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if ((uint)Index <= byte.MaxValue)
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{
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Generator.Emit(OpCodes.Starg_S, (byte)Index);
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}
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else if ((uint)Index < ushort.MaxValue)
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{
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Generator.Emit(OpCodes.Starg, (short)Index);
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}
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else
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{
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throw new ArgumentOutOfRangeException(nameof(Index));
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}
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}
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public static void EmitLdloc(this ILGenerator Generator, int Index)
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{
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switch (Index)
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{
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case 0: Generator.Emit(OpCodes.Ldloc_0); break;
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case 1: Generator.Emit(OpCodes.Ldloc_1); break;
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case 2: Generator.Emit(OpCodes.Ldloc_2); break;
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case 3: Generator.Emit(OpCodes.Ldloc_3); break;
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default:
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if ((uint)Index <= byte.MaxValue)
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{
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Generator.Emit(OpCodes.Ldloc_S, (byte)Index);
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}
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else if ((uint)Index < ushort.MaxValue)
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{
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Generator.Emit(OpCodes.Ldloc, (short)Index);
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}
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else
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{
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throw new ArgumentOutOfRangeException(nameof(Index));
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}
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break;
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}
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}
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public static void EmitStloc(this ILGenerator Generator, int Index)
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{
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switch (Index)
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{
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case 0: Generator.Emit(OpCodes.Stloc_0); break;
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case 1: Generator.Emit(OpCodes.Stloc_1); break;
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case 2: Generator.Emit(OpCodes.Stloc_2); break;
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case 3: Generator.Emit(OpCodes.Stloc_3); break;
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default:
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if ((uint)Index <= byte.MaxValue)
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{
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Generator.Emit(OpCodes.Stloc_S, (byte)Index);
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}
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else if ((uint)Index < ushort.MaxValue)
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{
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Generator.Emit(OpCodes.Stloc, (short)Index);
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}
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else
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{
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throw new ArgumentOutOfRangeException(nameof(Index));
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}
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break;
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}
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}
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public static void EmitLdargSeq(this ILGenerator Generator, int Count)
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{
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for (int Index = 0; Index < Count; Index++)
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{
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Generator.EmitLdarg(Index);
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}
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}
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}
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}
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