private ITypeRef ArithmeticType(IComparisonOperand operand)
{
if (operand is ConstValue)
{
return(PrimitiveType(((ConstValue)operand).Value().GetType()));
}
if (operand is FieldValue)
{
return(((FieldValue)operand).Field.Type);
}
if (operand is ArithmeticExpression)
{
ArithmeticExpression expr = (ArithmeticExpression)operand;
ITypeRef left = ArithmeticType(expr.Left());
ITypeRef right = ArithmeticType(expr.Right());
if (left == DoubleType() || right == DoubleType())
{
return(DoubleType());
}
if (left == FloatType() || right == FloatType())
{
return(FloatType());
}
if (left == LongType() || right == LongType())
{
return(LongType());
}
return(IntType());
}
return(null);
}
public void Visit(ArithmeticExpression operand)
{
operand.Left().Accept(this);
object left = _value;
operand.Right().Accept(this);
object right = _value;
switch (operand.Op().Id())
{
case ArithmeticOperator.AddId:
{
_value = Add(left, right);
break;
}
case ArithmeticOperator.SubtractId:
{
_value = Subtract(left, right);
break;
}
case ArithmeticOperator.MultiplyId:
{
_value = Multiply(left, right);
break;
}
case ArithmeticOperator.DivideId:
{
_value = Divide(left, right);
break;
}
}
}
public virtual void Visit(ArithmeticExpression operand)
{
bool oldInArithmetic = _inArithmetic;
_inArithmetic = true;
operand.Left().Accept(this);
operand.Right().Accept(this);
ITypeRef operandType = ArithmeticType(operand);
switch (operand.Op().Id())
{
case ArithmeticOperator.AddId:
{
_methodBuilder.Add(operandType);
break;
}
case ArithmeticOperator.SubtractId:
{
_methodBuilder.Subtract(operandType);
break;
}
case ArithmeticOperator.MultiplyId:
{
_methodBuilder.Multiply(operandType);
break;
}
case ArithmeticOperator.DivideId:
{
_methodBuilder.Divide(operandType);
break;
}
case ArithmeticOperator.ModuloId:
{
_methodBuilder.Modulo(operandType);
break;
}
default:
{
throw new Exception("Unknown operand: " + operand.Op());
}
}
Box(_opClass, !oldInArithmetic);
_inArithmetic = oldInArithmetic;
}
public virtual void Visit(ArithmeticExpression operand)
{
operand.Left().Accept(this);
operand.Right().Accept(this);
}