Merge pull request swiftlang#38506 from stephencelis/patch-5

DougGregor · web-flow · commit b0e72dfd90a9 · 2021-07-22T15:10:01.000-07:00
Constrain `AsyncThrowingStream.init(unfolding:) where Failure == Error`
diff --git a/stdlib/public/Concurrency/AsyncThrowingStream.swift b/stdlib/public/Concurrency/AsyncThrowingStream.swift
@@ -138,7 +138,7 @@ public struct AsyncThrowingStream<Element, Failure: Error> {
   
   public init(
     unfolding produce: @escaping () async throws -> Element?
-  ) {
+  ) where Failure == Error {
     self.produce = produce
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -138,7 +138,7 @@ public struct AsyncThrowingStream<Element, Failure: Error> {`
`138`	`138`
`139`	`139`	`public init(`
`140`	`140`	`unfolding produce: @escaping () async throws -> Element?`
`141`		`- ) {`
	`141`	`+ ) where Failure == Error {`
`142`	`142`	`self.produce = produce`
`143`	`143`	`}`
`144`	`144`	`}`