File: typed_throws.swift

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// RUN: %target-typecheck-verify-swift

// REQUIRES: concurrency

enum MyError: Error {
  case failed
  case epicFailed
}

@available(SwiftStdlib 6.0, *)
func testAsyncFor<S: AsyncSequence>(seq: S) async throws(MyError) {
  // expected-error@+1{{thrown expression type 'S.Failure' cannot be converted to error type 'MyError'}}
  for try await _ in seq {
  }
}

@available(SwiftStdlib 6.0, *)
func testAsyncFor<S: AsyncSequence>(seq: S) async throws(MyError)
  where S.Failure == MyError
{
  for try await _ in seq {
  }
}