Declare operator overloads.

[Chuck]

Declare operator overloads for your own classes.

Probably makes sense to do ticket:69 (consume operator overloads) first.

Also, I haven't designed a syntax for this. And it probably makes sense to review operator overloading in various languages such as C#, Python and C++. I think Java is still lacking in this area.

[Chuck]

Also, Cobra already supports a .compareTo instance method for covering all 6 comparison operators (==, <>, <=, etc.).

And one person has effectively suggested going this route by asking if the Scala approach could be used. See  http://cobra-language.com/forums/viewtopic.php?f=4&t=202&p=1092#p1092

This could also tie into the cue idea.

[Chuck]

 http://www.codeproject.com/KB/cs/introtooperatoroverloads.aspx

[Chuck]

Cues may be the way to declare operator overloads. Of course, this still has to mesh well with .NET (and any JVM conventions adopted by 3rd party languages).

There is a user proposal here:
 http://cobra-language.com/forums/viewtopic.php?f=4&t=213

[gauthier]

I would prefer op or operator keyword rather than cue

class Foo

shared

def +operator (other as Foo) as Foo

or

def +op (other as Foo) as Foo

[Chuck]

If we had a keyword, why wouldn't it replace def as in:

op + (other Foo) as Foo
    ...

Having both def and op|operator seems strange.