[stdlib] Additional ownership annotations

stdlib/public/core/Array.swift

@@ -1280,7 +1280,7 @@ extension Array: RangeReplaceableCollection {
   }
 
   @inlinable
-  public func _copyToContiguousArray() -> ContiguousArray<Element> {
+  public __consuming func _copyToContiguousArray() -> ContiguousArray<Element> {
     if let n = _buffer.requestNativeBuffer() {
       return ContiguousArray(_buffer: n)
     }
@@ -1490,7 +1490,7 @@ extension Array {
   }
 
   @inlinable
-  public func _copyContents(
+  public __consuming func _copyContents(
     initializing buffer: UnsafeMutableBufferPointer<Element>
   ) -> (Iterator,UnsafeMutableBufferPointer<Element>.Index) {
 

stdlib/public/core/ContiguousArray.swift

@@ -759,7 +759,7 @@ extension ContiguousArray: RangeReplaceableCollection {
   ///   same array.
   @inlinable
   @_semantics("array.append_element")
-  public mutating func append(_ newElement: Element) {
+  public mutating func append(_ newElement: __owned Element) {
     _makeUniqueAndReserveCapacityIfNotUnique()
     let oldCount = _getCount()
     _reserveCapacityAssumingUniqueBuffer(oldCount: oldCount)
@@ -784,7 +784,7 @@ extension ContiguousArray: RangeReplaceableCollection {
   ///   array.
   @inlinable
   @_semantics("array.append_contentsOf")
-  public mutating func append<S: Sequence>(contentsOf newElements: S)
+  public mutating func append<S: Sequence>(contentsOf newElements: __owned S)
     where S.Element == Element {
 
     let newElementsCount = newElements.underestimatedCount

stdlib/public/core/ContiguousArrayBuffer.swift

@@ -393,7 +393,7 @@ internal struct _ContiguousArrayBuffer<Element> : _ArrayBufferProtocol {
   /// just-initialized memory.
   @inlinable
   @discardableResult
-  internal func _copyContents(
+  internal __consuming func _copyContents(
     subRange bounds: Range<Int>,
     initializing target: UnsafeMutablePointer<Element>
   ) -> UnsafeMutablePointer<Element> {
@@ -441,7 +441,7 @@ internal struct _ContiguousArrayBuffer<Element> : _ArrayBufferProtocol {
   ///
   /// - Complexity: O(1).
   @inlinable
-  internal func _asCocoaArray() -> _NSArrayCore {
+  internal __consuming func _asCocoaArray() -> _NSArrayCore {
     if count == 0 {
       return _emptyArrayStorage
     }
@@ -512,7 +512,7 @@ internal struct _ContiguousArrayBuffer<Element> : _ArrayBufferProtocol {
 /// Append the elements of `rhs` to `lhs`.
 @inlinable
 internal func += <Element, C : Collection>(
-  lhs: inout _ContiguousArrayBuffer<Element>, rhs: C
+  lhs: inout _ContiguousArrayBuffer<Element>, rhs: __owned C
 ) where C.Element == Element {
 
   let oldCount = lhs.count
@@ -566,7 +566,7 @@ extension _ContiguousArrayBuffer : RandomAccessCollection {
 
 extension Sequence {
   @inlinable
-  public func _copyToContiguousArray() -> ContiguousArray<Element> {
+  public __consuming func _copyToContiguousArray() -> ContiguousArray<Element> {
     return _copySequenceToContiguousArray(self)
   }
 }
@@ -599,14 +599,14 @@ internal func _copySequenceToContiguousArray<
 
 extension Collection {
   @inlinable
-  public func _copyToContiguousArray() -> ContiguousArray<Element> {
+  public __consuming func _copyToContiguousArray() -> ContiguousArray<Element> {
     return _copyCollectionToContiguousArray(self)
   }
 }
 
 extension _ContiguousArrayBuffer {
   @inlinable
-  internal func _copyToContiguousArray() -> ContiguousArray<Element> {
+  internal __consuming func _copyToContiguousArray() -> ContiguousArray<Element> {
     return ContiguousArray(_buffer: self)
   }
 }

stdlib/public/core/Dictionary.swift

@@ -1565,7 +1565,7 @@ extension Dictionary.Keys {
 
   @inlinable
   @inline(__always)
-  public func makeIterator() -> Iterator {
+  public __consuming func makeIterator() -> Iterator {
     return Iterator(_variant.makeIterator())
   }
 }
@@ -1598,7 +1598,7 @@ extension Dictionary.Values {
 
   @inlinable
   @inline(__always)
-  public func makeIterator() -> Iterator {
+  public __consuming func makeIterator() -> Iterator {
     return Iterator(_variant.makeIterator())
   }
 }

stdlib/public/core/ExistentialCollection.swift.gyb

@@ -804,12 +804,12 @@ extension Any${Kind} {
   }
 
   @inlinable
-  public func _copyToContiguousArray() -> ContiguousArray<Element> {
+  public __consuming func _copyToContiguousArray() -> ContiguousArray<Element> {
     return self._box.__copyToContiguousArray()
   }
 
   @inlinable
-  public func _copyContents(initializing buf: UnsafeMutableBufferPointer<Element>)
+  public __consuming func _copyContents(initializing buf: UnsafeMutableBufferPointer<Element>)
   -> (AnyIterator<Element>,UnsafeMutableBufferPointer<Element>.Index) {
     let (it,idx) = _box.__copyContents(initializing: buf)
     return (AnyIterator(it),idx)

stdlib/public/core/Filter.swift

@@ -140,7 +140,7 @@ extension LazyFilterCollection : LazySequenceProtocol {
   public var underestimatedCount: Int { return 0 }
 
   @inlinable // lazy-performance
-  public func _copyToContiguousArray() -> ContiguousArray<Base.Element> {
+  public __consuming func _copyToContiguousArray() -> ContiguousArray<Base.Element> {
 
     // The default implementation of `_copyToContiguousArray` queries the
     // `count` property, which evaluates `_predicate` for every element --

stdlib/public/core/Flatten.swift

@@ -261,7 +261,7 @@ extension FlattenCollection : Sequence {
   public var underestimatedCount: Int { return 0 }
 
   @inlinable // lazy-performance
-  public func _copyToContiguousArray() -> ContiguousArray<Base.Element.Element> {
+  public __consuming func _copyToContiguousArray() -> ContiguousArray<Base.Element.Element> {
     // The default implementation of `_copyToContiguousArray` queries the
     // `count` property, which materializes every inner collection.  This is a
     // bad default for `flatMap()`.  So we treat `self` as a sequence and only

stdlib/public/core/Join.swift

@@ -131,7 +131,7 @@ extension JoinedSequence: Sequence {
   }
 
   @inlinable // lazy-performance
-  public func _copyToContiguousArray() -> ContiguousArray<Element> {
+  public __consuming func _copyToContiguousArray() -> ContiguousArray<Element> {
     var result = ContiguousArray<Element>()
     let separatorSize: Int = numericCast(_separator.count)
 

stdlib/public/core/LazyCollection.swift

@@ -93,13 +93,13 @@ extension LazyCollection : Sequence {
   public var underestimatedCount: Int { return _base.underestimatedCount }
 
   @inlinable
-  public func _copyToContiguousArray()
+  public __consuming func _copyToContiguousArray()
      -> ContiguousArray<Base.Element> {
     return _base._copyToContiguousArray()
   }
 
   @inlinable
-  public func _copyContents(
+  public __consuming func _copyContents(
     initializing buf: UnsafeMutableBufferPointer<Element>
   ) -> (Iterator,UnsafeMutableBufferPointer<Element>.Index) {
     return _base._copyContents(initializing: buf)

stdlib/public/core/SequenceWrapper.swift

@@ -48,7 +48,7 @@ extension _SequenceWrapper where Iterator == Base.Iterator {
 
   @inlinable // generic-performance
   @discardableResult
-  public func _copyContents(
+  public __consuming func _copyContents(
     initializing buf: UnsafeMutableBufferPointer<Element>
   ) -> (Iterator, UnsafeMutableBufferPointer<Element>.Index) {
     return _base._copyContents(initializing: buf)

stdlib/public/core/SliceBuffer.swift

@@ -92,7 +92,7 @@ internal struct _SliceBuffer<Element>
   internal mutating func replaceSubrange<C>(
     _ subrange: Range<Int>,
     with insertCount: Int,
-    elementsOf newValues: C
+    elementsOf newValues: __owned C
   ) where C : Collection, C.Element == Element {
 
     _invariantCheck()
@@ -221,7 +221,7 @@ internal struct _SliceBuffer<Element>
 
   @inlinable // FIXME(sil-serialize-all)
   @discardableResult
-  internal func _copyContents(
+  internal __consuming func _copyContents(
     subRange bounds: Range<Int>,
     initializing target: UnsafeMutablePointer<Element>
   ) -> UnsafeMutablePointer<Element> {
@@ -372,7 +372,7 @@ internal struct _SliceBuffer<Element>
 
 extension _SliceBuffer {
   @inlinable // FIXME(sil-serialize-all)
-  internal func _copyToContiguousArray() -> ContiguousArray<Element> {
+  internal __consuming func _copyToContiguousArray() -> ContiguousArray<Element> {
     if _hasNativeBuffer {
       let n = nativeBuffer
       if count == n.count {