How do I mark a function as returning shared object?

This won't compile:

shared Foo foo () {
  ...
}

This does, but looks somewhat awkward to me:

shared (shared Foo) foo () {
  ...
}

-- 
Marek Janukowicz

On Friday, 7 August 2015 at 17:19:16 UTC, Marek Janukowicz wrote:
> shared (shared Foo) foo () {
>   ...
> }

That's correct, though the recommendation now is to put the other shared on teh right and change the parens a little:

shared(Foo) foo() shared {

}

The ones without parens refer to the `this` in there and are kinda confusing to see on the left, so putting them on the right looks a bit easier (same with const btw).

On 8/7/15 1:19 PM, Marek Janukowicz wrote:
> How do I mark a function as returning shared object?
>
> This won't compile:
>
> shared Foo foo () {
>    ...
> }
>
> This does, but looks somewhat awkward to me:
>
> shared (shared Foo) foo () {
>    ...
> }
>

shared, const, immutable when applied to a member function actually are NOT affecting the return type.

So for instance:

const Foo foo()

Does NOT return a const Foo, but:

const(Foo) foo()

does. The first returns a mutable Foo, and applies const to the 'this' parameter for the foo member function (a hidden parameter).

So what you likely want is:

shared(Foo) foo()

-Steve