Is there a better way to use the new operator overloading than string mixins?
Also the following code strangely yields:
dsfml\system\vector2.d(47): Error: variable
dsfml.system.vector2.Vector2!(float).Vector2.op only parameters or foreach
declarations can be ref
/// element-wise operations, +, -,
ref Vector2 opBinary(string op)(ref Vector2 v)
{
mixin("return Vector2!(T)( cast(T)(x " ~ op ~ " v.x), cast(T)(y " ~ op
~ " v.y) );");
}
Removing ref from the return type makes it compile.
Furthermore the assignment operator seems to be rewritten as opBinary instead
of opAssign as the docs state:
Vector2f _pos = Vector2f(0.f, 0.f);
yields:
Error: template instance opBinary!("=") matches more than one template
declaration
This also shows another problem. It can't distinguish between these two:
Vector2 opBinary(string op)(ref Vector2 v)
if (op != "*")
{
mixin("return Vector2!(T)( cast(T)(x " ~ op ~ " v.x), cast(T)(y " ~ op
~ " v.y) );");
}
Vector2 opBinary(string op)(int i)
{
mixin("return Vector2!(T) ( cast(T)(x " ~ op ~ " i), cast(T)(y " ~ op ~
" i) );");
}
even though vec1 + vec2 resp. vec + 5 is unambiguous.
