Devin Coughlin 47d9de9751 [Exclusivity] Relax closure enforcement on separate stored properties (#10789) ...

Make the static enforcement of accesses in noescape closures stored-property
sensitive. This will relax the existing enforcement so that the following is
not diagnosed:

struct MyStruct {
   var x = X()
   var y = Y()

  mutating
  func foo() {
    x.mutatesAndTakesClosure() {
      _ = y.read() // no-warning
   }
  }
}

To do this, update the access summary analysis to summarize accesses to
subpaths of a capture.

rdar://problem/32987932

2017-07-10 13:33:22 -07:00

9.5 KiB

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