bool MethodIsLiteralMatch(PEFile module, MethodDefinition methodDefinition)
{
var blob = module.Reader.GetMethodBody(methodDefinition.RelativeVirtualAddress).GetILReader();
if (searchTermLiteralType == TypeCode.Int64)
{
long val = (long)searchTermLiteralValue;
while (blob.RemainingBytes > 0)
{
ILOpCode code;
switch (code = ILParser.DecodeOpCode(ref blob))
{
case ILOpCode.Ldc_i8:
if (val == blob.ReadInt64())
{
return(true);
}
break;
case ILOpCode.Ldc_i4:
if (val == blob.ReadInt32())
{
return(true);
}
break;
case ILOpCode.Ldc_i4_s:
if (val == blob.ReadSByte())
{
return(true);
}
break;
case ILOpCode.Ldc_i4_m1:
if (val == -1)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_0:
if (val == 0)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_1:
if (val == 1)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_2:
if (val == 2)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_3:
if (val == 3)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_4:
if (val == 4)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_5:
if (val == 5)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_6:
if (val == 6)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_7:
if (val == 7)
{
return(true);
}
break;
case ILOpCode.Ldc_i4_8:
if (val == 8)
{
return(true);
}
break;
default:
ILParser.SkipOperand(ref blob, code);
break;
}
}
}
else if (searchTermLiteralType != TypeCode.Empty)
{
ILOpCode expectedCode;
switch (searchTermLiteralType)
{
case TypeCode.Single:
expectedCode = ILOpCode.Ldc_r4;
break;
case TypeCode.Double:
expectedCode = ILOpCode.Ldc_r8;
break;
case TypeCode.String:
expectedCode = ILOpCode.Ldstr;
break;
default:
throw new InvalidOperationException();
}
while (blob.RemainingBytes > 0)
{
var code = ILParser.DecodeOpCode(ref blob);
if (code != expectedCode)
{
ILParser.SkipOperand(ref blob, code);
continue;
}
switch (code)
{
case ILOpCode.Ldc_r4:
if ((float)searchTermLiteralValue == blob.ReadSingle())
{
return(true);
}
break;
case ILOpCode.Ldc_r8:
if ((double)searchTermLiteralValue == blob.ReadDouble())
{
return(true);
}
break;
case ILOpCode.Ldstr:
if ((string)searchTermLiteralValue == ILParser.DecodeUserString(ref blob, module.Metadata))
{
return(true);
}
break;
}
}
}
else
{
while (blob.RemainingBytes > 0)
{
var code = ILParser.DecodeOpCode(ref blob);
if (code != ILOpCode.Ldstr)
{
ILParser.SkipOperand(ref blob, code);
continue;
}
if (IsMatch(ILParser.DecodeUserString(ref blob, module.Metadata)))
{
return(true);
}
}
}
return(false);
}
