[stdlib] Mark associated type witnesses as @usableFromInline

jrose-apple · jrose-apple · commit 65fe556c1ad7 · 2018-11-06T17:00:46.000-08:00
Inlinable code is permitted to rely on these associated types, so we
need to make sure their declarations are printed in the parseable
interface.

Part of rdar://problem/43824052
diff --git a/stdlib/public/core/ArrayBuffer.swift b/stdlib/public/core/ArrayBuffer.swift
@@ -504,6 +504,7 @@ extension _ArrayBuffer {
     return count
   }
 
+  @usableFromInline
   internal typealias Indices = Range<Int>
 
   //===--- private --------------------------------------------------------===//
diff --git a/stdlib/public/core/CocoaArray.swift b/stdlib/public/core/CocoaArray.swift
@@ -28,7 +28,9 @@ import SwiftShims
 @usableFromInline
 @_fixed_layout
 internal struct _CocoaArrayWrapper : RandomAccessCollection {
+  @usableFromInline
   typealias Indices = Range<Int>
+
   @inlinable
   internal var startIndex: Int {
     return 0
diff --git a/stdlib/public/core/ContiguousArrayBuffer.swift b/stdlib/public/core/ContiguousArrayBuffer.swift
@@ -551,6 +551,7 @@ extension _ContiguousArrayBuffer : RandomAccessCollection {
     return count
   }
 
+  @usableFromInline
   internal typealias Indices = Range<Int>
 }
 
diff --git a/stdlib/public/core/SliceBuffer.swift b/stdlib/public/core/SliceBuffer.swift
@@ -344,6 +344,7 @@ internal struct _SliceBuffer<Element>
     }
   }
 
+  @usableFromInline
   internal typealias Indices = Range<Int>
 
   //===--- misc -----------------------------------------------------------===//

Original file line number	Diff line number	Diff line change
`@@ -504,6 +504,7 @@ extension _ArrayBuffer {`
`504`	`504`	`return count`
`505`	`505`	`}`
`506`	`506`
	`507`	`+ @usableFromInline`
`507`	`508`	`internal typealias Indices = Range<Int>`
`508`	`509`
`509`	`510`	`//===--- private --------------------------------------------------------===//`
Original file line number	Diff line number	Diff line change
`@@ -551,6 +551,7 @@ extension _ContiguousArrayBuffer : RandomAccessCollection {`
`551`	`551`	`return count`
`552`	`552`	`}`
`553`	`553`
	`554`	`+ @usableFromInline`
`554`	`555`	`internal typealias Indices = Range<Int>`
`555`	`556`	`}`
`556`	`557`
Original file line number	Diff line number	Diff line change
`@@ -344,6 +344,7 @@ internal struct _SliceBuffer<Element>`
`344`	`344`	`}`
`345`	`345`	`}`
`346`	`346`
	`347`	`+ @usableFromInline`
`347`	`348`	`internal typealias Indices = Range<Int>`
`348`	`349`
`349`	`350`	`//===--- misc -----------------------------------------------------------===//`