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Previously, the AbstractionPattern that was used for the value "returned" (i.e. via a completion handler) from ObjC mostly (but not quite always) was "type". The generated completion handler correctly (because this is required in order to call _resumeUnsafeContinuation) reabstracted the block (e.g. from @convention(block) to @substituted <T> () -> @out T for <()>). The callee of the ObjC function, however, loaded the function from the block as if it were not reabstracted (e.g. () -> ()). On most platforms, that happened to work. On arm64e, that difference in types caused in a difference in pointer signing, resulting in a failure at runtime. rdar://85526879 rdar://85526916
9 lines
248 B
Swift
9 lines
248 B
Swift
// RUN: %target-swift-frontend %s -emit-silgen -disable-availability-checking -import-objc-header %S/Inputs/rdar79383990.h
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// REQUIRES: objc_interop
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import Foundation
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func test(s: BackgroundActivityScheduler) async {
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_ = await s.schedule()
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}
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