public static CilInstruction ResolveByType(vmInstruction instr)
{
//If you have a better way lmk :D
var type = instr.Operand;
if (type is null)
{
return(new CilInstruction(CilOpCodes.Ldnull));
}
if (type is int)
{
return(new CilInstruction(CilOpCodes.Ldc_I4, instr.Operand));
}
if (type is float)
{
return(new CilInstruction(CilOpCodes.Ldc_R4, instr.Operand));
}
if (type is double)
{
return(new CilInstruction(CilOpCodes.Ldc_R8, instr.Operand));
}
if (type is string)
{
return(new CilInstruction(CilOpCodes.Ldstr, instr.Operand));
}
if (type is long)
{
return(new CilInstruction(CilOpCodes.Ldc_I8, instr.Operand));
}
return(new CilInstruction(CilOpCodes.Nop));
}
public static CilInstruction CreateInstruction(VirtualizedMethod method, vmInstruction vmInstruction)
{
CilInstruction instruction;
switch (vmInstruction.OpCode)
{
case vmOpCode.VmCall:
instruction = new CilInstruction(CilOpCodes.Call,
method.Parent.Module.LookupMember(
int.Parse(((string)vmInstruction.Operand).Substring(2))));
break;
case vmOpCode.VmLdc:
instruction = ResolveByType(vmInstruction);
break;
case vmOpCode.VmArray:
instruction = (int)vmInstruction.Operand switch
{
0 => new CilInstruction(CilOpCodes.Ldelem),
1 => new CilInstruction(CilOpCodes.Stelem),
_ => new CilInstruction(CilOpCodes.Nop)
};
break;
case vmOpCode.VmLoc:
instruction = int.Parse(((string)vmInstruction.Operand)[0].ToString()) switch
{
0 => new CilInstruction(CilOpCodes.Ldloc),
_ => new CilInstruction(CilOpCodes.Stloc)
};
instruction.Operand = int.Parse(((string)vmInstruction.Operand).Substring(1));
break;
case vmOpCode.VmArg:
instruction = int.Parse(((string)vmInstruction.Operand)[0].ToString()) switch
{
0 => new CilInstruction(CilOpCodes.Ldarg),
_ => new CilInstruction(CilOpCodes.Starg)
};
instruction.Operand = int.Parse(((string)vmInstruction.Operand).Substring(1));
break;
case vmOpCode.VmFld:
instruction =
new CilInstruction(CilOpCodes.Ldfld,
method.Parent.Module.LookupMember(
int.Parse(((string)vmInstruction.Operand).Substring(1))));
break;
case vmOpCode.VmConv:
instruction = (int)vmInstruction.Operand switch
{
0 => new CilInstruction(CilOpCodes.Conv_R4),
1 => new CilInstruction(CilOpCodes.Conv_R8),
_ => new CilInstruction(CilOpCodes.Nop)
};
break;
case vmOpCode.Ldtoken:
instruction = new CilInstruction(CilOpCodes.Ldtoken,
method.Parent.Module.LookupMember(int.Parse(((string)vmInstruction.Operand).Substring(1))));
break;
case vmOpCode.Brfalse:
instruction = new CilInstruction(CilOpCodes.Brfalse, vmInstruction.Operand);
break;
case vmOpCode.Brtrue:
instruction = new CilInstruction(CilOpCodes.Brtrue, vmInstruction.Operand);
break;
case vmOpCode.Br:
instruction = new CilInstruction(CilOpCodes.Br, vmInstruction.Operand);
break;
case vmOpCode.Newobj:
instruction = new CilInstruction(CilOpCodes.Newobj,
method.Parent.Module.LookupMember((int)vmInstruction.Operand));
break;
case vmOpCode.Box:
instruction = new CilInstruction(CilOpCodes.Box,
new ReferenceImporter(method.Parent.Module).ImportType(GetTypeDefOrRef(method.Parent.Module,
(string)vmInstruction.Operand)));
break;
default:
instruction = new CilInstruction(Convert(vmInstruction.OpCode));
break;
}
return(instruction);
}
