private Value Addition(AdditionNode exp)
{
try
{
Constant left = Eval(exp.Left).GetRValue();
Constant right = Eval(exp.Right).GetRValue();
Constant.Type leftType = left.ConstantType;
Constant.Type rightType = right.ConstantType;
Constant.Type bt = Max(leftType, rightType);
switch (bt)
{
case Constant.Type.Complex:
{
ComplexValue l = (ComplexValue)Convert(left, bt);
ComplexValue r = (ComplexValue)Convert(right, bt);
return(ComplexValue.OpAdd(l, r));
}
case Constant.Type.Int:
{
IntValue l = (IntValue)Convert(left, bt);
IntValue r = (IntValue)Convert(right, bt);
return(IntValue.OpAdd(l, r));
}
case Constant.Type.Float:
{
FloatValue l = (FloatValue)Convert(left, bt);
FloatValue r = (FloatValue)Convert(right, bt);
return(FloatValue.OpAdd(l, r));
}
case Constant.Type.String:
{
StringValue l = (StringValue)Convert(left, bt);
StringValue r = (StringValue)Convert(right, bt);
return(StringValue.OpAdd(l, r));
}
}
throw new ModelInterpreterException("Сложение не определено для типа \"" + bt.ToString() + "\".")
{
Line = exp.Line,
Position = exp.Position
};
}
catch (TypeConversionError exc)
{
throw new ModelInterpreterException($"Не удалось преобразование из \"{exc.Src}\" в \"{exc.Dst}\"")
{
Line = exp.Line,
Position = exp.Position
};
}
catch (ModelInterpreterException exc)
{
throw exc;
}
catch (Exception exc)
{
throw new ModelInterpreterException(exc.Message)
{
Line = exp.Line,
Position = exp.Position
};
}
}