mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-22 05:48:37 +00:00
104 lines
5.3 KiB
C#
104 lines
5.3 KiB
C#
using System;
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namespace Cosmos.IL2CPU.Profiler.IL
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{
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[Cosmos.IL2CPU.OpCode(ILOp.Code.Castclass)]
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public class Castclass: ILOpCode
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{
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#region Old code
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// using System;
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// using System.Collections.Generic;
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// using System.IO;
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//
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//
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// using CPU = Indy.IL2CPU.Assembler;
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// using CPUx86 = Indy.IL2CPU.Assembler.X86;
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// using System.Reflection;
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// using Indy.IL2CPU.Assembler;
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// using Indy.IL2CPU.Compiler;
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//
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// namespace Indy.IL2CPU.IL.X86 {
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// [Cosmos.IL2CPU.OpCode(ILOp.Code.Castclass)]
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// public class Castclass: ILOpCode {
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// private string mTypeId;
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// private string mThisLabel;
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// private string mNextOpLabel;
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// private Type mCastAsType;
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// private int mCurrentILOffset;
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// private MethodInformation mMethodInfo;
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//
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// public static void ScanOp(ILReader aReader, MethodInformation aMethodInfo, SortedList<string, object> aMethodData, IServiceProvider aProvider)
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// {
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// Type xType = aReader.OperandValueType;
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// if (xType == null)
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// {
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// throw new Exception("Unable to determine Type!");
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// }
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// aProvider.GetService<IMetaDataInfoService>().GetTypeInfo(xType);
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// Call.ScanOp(Engine.GetMethodBase(typeof(VTablesImpl),
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// "IsInstance",
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// "System.Int32",
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// "System.Int32"), aProvider);
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// Newobj.ScanOp(typeof(InvalidCastException).GetConstructor(new Type[0]), aProvider);
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// }
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//
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// public Castclass(ILReader aReader, MethodInformation aMethodInfo)
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// : base(aReader, aMethodInfo) {
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// Type xType = aReader.OperandValueType;
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// if (xType == null) {
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// throw new Exception("Unable to determine Type!");
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// }
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// mCastAsType = xType;
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// mThisLabel = GetInstructionLabel(aReader);
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// mNextOpLabel = GetInstructionLabel(aReader.NextPosition);
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// mCurrentILOffset = (int)aReader.Position;
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// mMethodInfo = aMethodInfo;
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// }
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//
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// public override void DoAssemble() {
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// mTypeId = GetService<IMetaDataInfoService>().GetTypeIdLabel(mCastAsType);
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// // todo: throw an exception when the class does not support the cast!
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// string mReturnNullLabel = mThisLabel + "_ReturnNull";
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// new CPUx86.Move { DestinationReg = CPUx86.Registers.EAX, SourceReg = CPUx86.Registers.ESP, SourceIsIndirect = true };
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// new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceValue = 0 };
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// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.Zero, DestinationLabel = mReturnNullLabel };
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// new CPUx86.Push { DestinationReg = CPUx86.Registers.EAX, DestinationIsIndirect = true };
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// new CPUx86.Push{DestinationRef=ElementReference.New(mTypeId), DestinationIsIndirect=true};
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// Assembler.StackContents.Push(new StackContent(4, typeof(object)));
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// Assembler.StackContents.Push(new StackContent(4, typeof(object)));
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// MethodBase xMethodIsInstance = ReflectionUtilities.GetMethodBase(typeof(VTablesImpl), "IsInstance", "System.Int32", "System.Int32");
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// Op xOp = new Call(xMethodIsInstance, (uint)mCurrentILOffset, mMethodInfo.DebugMode, mThisLabel + "_After_IsInstance_Call");
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// xOp.Assembler = Assembler;
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// xOp.SetServiceProvider(GetServiceProvider());
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// xOp.Assemble();
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// new CPU.Label(mThisLabel + "_After_IsInstance_Call");
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// Assembler.StackContents.Pop();
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// new CPUx86.Pop { DestinationReg = CPUx86.Registers.EAX };
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// new CPUx86.Compare { DestinationReg = CPUx86.Registers.EAX, SourceValue = 0 };
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// new CPUx86.ConditionalJump { Condition = CPUx86.ConditionalTestEnum.NotEqual, DestinationLabel = mNextOpLabel };
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// new CPU.Label(mReturnNullLabel);
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// new CPUx86.Add { DestinationReg = CPUx86.Registers.ESP, SourceValue = 4 };
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// var xAllocInfo = GetService<IMetaDataInfoService>().GetMethodInfo(GCImplementationRefs.AllocNewObjectRef,
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// false);
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// Newobj.Assemble(Assembler,
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// typeof(InvalidCastException).GetConstructor(new Type[0]),
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// GetService<IMetaDataInfoService>().GetTypeIdLabel(typeof(InvalidCastException)),
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// mThisLabel,
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// mMethodInfo,
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// mCurrentILOffset,
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// mThisLabel + "_After_NewException",
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// GetService<IMetaDataInfoService>().GetTypeInfo(typeof(InvalidCastException)),
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// GetService<IMetaDataInfoService>().GetMethodInfo(typeof(InvalidCastException).GetConstructor(new Type[0]), false),
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// GetServiceProvider(),
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// xAllocInfo.LabelName);
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// new CPU.Label(mThisLabel + "_After_NewException");
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// Call.EmitExceptionLogic(Assembler, (uint)mCurrentILOffset, mMethodInfo, mNextOpLabel, false, null);
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// }
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// }
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// }
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#endregion
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}
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}
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