DIP1000: The return of 'Extend Return Scope Semantics'
ag0aep6g
anonymous at example.com
Fri Jun 11 05:53:09 UTC 2021
On 11.06.21 04:58, Walter Bright wrote:
> It is not arbitrary. It actually fits with common Phobos usage. It is
> especially true if one writes member functions for a container, doing
> things like:
>
> stack.push(value);
>
> where value is a pointer.
You can't defend the "first parameter" rule with member functions. If
you want to support returning through `this`, you can easily define that
without bringing the order of the parameters into it.
The actual point of the "first parameter" rule is obviously UFCS. You
want support a free function `push` that is called via UFCS. `push` is
not a member function then.
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