On 01/23/2019 07:19 AM, Jacob Shtokolov wrote:
> Expressions like `User.id == 10`, `User.age > 18`, etc. should return a
> struct instead of a bool (let's call it `struct BinaryExpression`).
Have you considered 'alias this'?
struct BinaryExpr(T)
{
T left;
T right;
Op op;
bool value() const {
final switch (op) with (Op) {
case Equals:
return left == right;
case NotEquals:
return left != right;
}
}
alias value this;
}
> So I'm making the two versions of opEquals: one returns a
> BinaryExpression, and the second - a boolean value.
Yeah, that can't work. Remove the bool-returning one and your code works
with the 'alias this' above.
Ali
