[stdlib] InlineArray consumed by OutputSpan

Author: glessard

stdlib/public/core/Span/OutputSpan.swift

@@ -398,6 +398,18 @@ extension OutputSpan where Element: ~Copyable {
   }
 }
 
+@available(SwiftStdlib 6.2, *)
+extension OutputSpan where Element: BitwiseCopyable {
+  //FIXME: We need this for Element: ~Copyable
+  @_alwaysEmitIntoClient
+  @lifetime(self: copy self)
+  public mutating func append<let N: Int>(
+    consuming source: consuming InlineArray<N, Element>
+  ) {
+    source._consume { append(moving: &$0) }
+  }
+}
+
 @available(SwiftStdlib 6.2, *)
 extension OutputSpan where Element: ~Copyable {
   @_alwaysEmitIntoClient

test/stdlib/Span/OutputSpanTests.swift

@@ -420,3 +420,16 @@ suite.test("InlineArray initialization throws")
   }
 }
 #endif
+
+suite.test("InlineArray consumed")
+.require(.stdlib_6_2).code {
+  guard #available(SwiftStdlib 6.2, *) else { return }
+
+  let a: InlineArray<4, Int> = [1, 2, 3, 4]
+  let b = Array(capacity: 20, initializingWith: {
+    $0.append(consuming: a)
+  })
+  expectEqual(a.count, b.count)
+  let i = a.indices.randomElement()!
+  expectEqual(b[i], a[i])
+}