[swift-corelibs-dev] [swift-evolution] Proposal: add `noescape` attribute to public API (particularly libdispatch)
phabouzit at apple.com
Sat Dec 5 15:50:07 CST 2015
> On Dec 5, 2015, at 1:44 PM, Jacob Bandes-Storch via swift-evolution <swift-evolution at swift.org> wrote:
> One option was to use the API notes feature of the compiler to annotate these APIs as part of the import into Swift. Another is to get the C headers changed (on Darwin too) to add the attribute. We may want to do one approach in the short term and another in the long term.
> I've been operating under the assumption that __attribute__((noescape)) will eventually be deeply understood by clang, and allow the same elision of "self" in Objective-C that @noescape does in Swift. (I filed <rdar://19914650> for this some time ago.)
> Thus, I think it makes the most sense to change the C headers.
I completely agree with that statement, and I think that this change should make it into Darwin and swift-corelibs-libdispatch both.
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