return new StringConstant (ec.BuiltinTypes, (string)left.GetValue () + (string)right.GetValue (),
left.Location);
- if (lt == InternalType.NullLiteral)
+ if (lt == InternalType.NullLiteral || left.IsNull)
return new StringConstant (ec.BuiltinTypes, "" + right.GetValue (), left.Location);
- if (rt == InternalType.NullLiteral)
+ if (rt == InternalType.NullLiteral || right.IsNull)
return new StringConstant (ec.BuiltinTypes, left.GetValue () + "", left.Location);
return null;
return null;
result = result.Reduce (ec, lt);
- if (result == null)
- return null;
+ if (result == null || lt.IsEnum)
+ return result;
return new EnumConstant (result, lt);
}
((IntConstant) right).Value);
return new IntConstant (ec.BuiltinTypes, res, left.Location);
- } else {
- throw new Exception ( "Unexepected modulus input: " + left);
}
+
+ if (left is DecimalConstant) {
+ decimal res;
+
+ if (ec.ConstantCheckState)
+ res = checked (((DecimalConstant) left).Value %
+ ((DecimalConstant) right).Value);
+ else
+ res = unchecked (((DecimalConstant) left).Value %
+ ((DecimalConstant) right).Value);
+
+ return new DecimalConstant (ec.BuiltinTypes, res, left.Location);
+ }
+
+ throw new Exception ( "Unexepected modulus input: " + left);
} catch (DivideByZeroException){
ec.Report.Error (20, loc, "Division by constant zero");
} catch (OverflowException){