Fix Issue 17878 - Add __traits(isFuture, ...)

[RazvanN7]

No description provided.

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Bugzilla references

Auto-close	Bugzilla	Description
✓	17878	Add __traits(isFuture, ...)

[andralex]

cc @WalterBright @leandro-lucarella-sociomantic

[WalterBright]

Need spec pull, too.

[RazvanN7]

@WalterBright First, we should have @future into the specs and then the isFuture trait.

I made a PR anyway, but a link to what @future does, should be added.

dlang/dlang.org#1916

[andralex]

I'll merge this and the spec pull, let me know if further additions are necessary.

[leandro-lucarella-sociomantic]

Please, always state that this is a supposedly hidden, experimental feature, and link to the DIP. It will confuse people if we start adding wrong docs.