[Issue 17910] Can't have UFCS in aggregate types

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=17910

--- Comment #5 from Steven Schveighoffer <schveiguy at yahoo.com> ---
(In reply to anonymous4 from comment #4)
> (In reply to Steven Schveighoffer from comment #3)
> > make your extension methods global
> 
> This destroys encapsulation: what has no business at global scope shouldn't
> be there.

Using clear(b) does not destroy encapsulation.

> 
> > D usually frowns upon having the
> > same code mean different things in different contexts.
> 
> This is not the case for UFCS.

Correct, it is not because local functions do not supersede global ones for
UFCS.

void foo(int) {}

void main()
{
  void foo(int) {}
  1.foo; // calls global foo
}

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