[webkit-dev] Should we ever use std::function instead of WTF::Function?

Filip Pizlo fpizlo at apple.com
Tue Jun 13 12:30:06 PDT 2017

And ObjC blocks share instead of copying, which is more like SharedTask.  I think that’s another reason why adding copy constructors to WTF::Function that do block-like sharing under the hood is rather attractive.


> On Jun 13, 2017, at 12:29 PM, Alex Christensen <achristensen at apple.com> wrote:
> std::function, c++ lambda, and objc blocks are all interchangeable.  WTF::Functions cannot be used as objc blocks because the latter must be copyable.  Until that changes or we stop using objc, we cannot completely eliminate std::function from WebKit.

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