Joe Groff 94be8424ff Sema: Type checking for C function pointers. ...

Since a function pointer doesn't carry any context, we can only form a C function pointer from a static reference to a global function or a context-free local function or closure. (Or maybe a static function applied to its metatype, but that's not handled here yet.) As a placeholder for a to-be-bikeshedded surface syntax, let the existing @cc(cdecl) attribute appear in source text when the -enable-c-function-pointers frontend flag is passed.

Swift SVN r25308

2015-02-16 00:41:53 +00:00

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