//OperatorInfo OperInfo => CompileContext.Current.GetOperatorInfo(ExpressionType, typeof(object), typeof(Type));
public override CompiledDelegate Compile(CompileContext ctx)
{
var typeOperand = this.typeOperand;
var lhs = Operand.Compile(ctx);
var method = this.Method;
if (ExpressionType == ExpressionType.Convert && method.GetParameters().Length == 2)
{
return((invoke) => System.Convert.ChangeType(lhs(invoke), typeOperand));
}
return((invoke) => method.Invoke(null, new object[] { lhs(invoke) }));
}
public override CompiledDelegate Compile(CompileContext ctx)
{
return(Operand.Compile(ctx));
}
public override CompiledDelegate Compile(CompileContext ctx)
{
var value = Operand.Compile(ctx);
return((invoke) => value(invoke));
}
public override void Compile(EmitCompilerContext context, EmitIl il)
{
Operand.Compile(context, il);
var operandType = Operand.GetExpressionType();
EmitType typeInt = typeof(int);
EmitType typeUint = typeof(uint);
EmitType typeShort = typeof(short);
EmitType typeUshort = typeof(ushort);
EmitType typeByte = typeof(byte);
EmitType typeSbyte = typeof(sbyte);
EmitType typeLong = typeof(long);
EmitType typeUlong = typeof(ulong);
EmitType typeDouble = typeof(double);
EmitType typeFloat = typeof(float);
EmitType typeDecimal = typeof(decimal);
EmitType typeBool = typeof(bool);
var typeIs32Bit = Equals(Type, typeByte) || Equals(Type, typeShort) || Equals(Type, typeInt) || Equals(Type, typeSbyte) || Equals(Type, typeUshort) || Equals(Type, typeUint);
var operandIs32Bit = Equals(operandType, typeByte) || Equals(operandType, typeShort) || Equals(operandType, typeInt) || Equals(operandType, typeSbyte) || Equals(operandType, typeUshort) || Equals(operandType, typeUint);
var typeIsFloatingPoint = Equals(Type, typeFloat) || Equals(Type, typeDouble);
var operandIsFloatingPoint = Equals(operandType, typeFloat) || Equals(operandType, typeDouble);
if (operandIs32Bit || operandIsFloatingPoint || Equals(operandType, typeLong))
{
if (Equals(Type, operandType))
{
return;
}
if (Equals(Type, typeFloat))
{
il.Emit(EmitOpCodes.Conv_R4);
return;
}
if (Equals(Type, typeDouble))
{
il.Emit(EmitOpCodes.Conv_R8);
return;
}
if (Equals(Type, typeByte))
{
il.Emit(EmitOpCodes.Conv_U1);
return;
}
if (Equals(Type, typeSbyte))
{
il.Emit(EmitOpCodes.Conv_I1);
return;
}
if (Equals(Type, typeShort))
{
il.Emit(EmitOpCodes.Conv_I2);
return;
}
if (Equals(Type, typeUshort))
{
il.Emit(EmitOpCodes.Conv_U2);
return;
}
if (Equals(Type, typeInt))
{
il.Emit(EmitOpCodes.Conv_I4);
return;
}
if (Equals(Type, typeUint))
{
il.Emit(EmitOpCodes.Conv_U4);
return;
}
if (Equals(Type, typeLong))
{
il.Emit(EmitOpCodes.Conv_I8);
return;
}
if (Equals(Type, typeUlong))
{
il.Emit(EmitOpCodes.Conv_U8);
return;
}
}
// All else fails, then:
il.Emit(EmitOpCodes.Castclass, Type);
}
