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[SR-2440] @escaping shouldn't be allowed outside of function param types #45045

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jtbandes opened this issue Aug 20, 2016 · 2 comments
Closed

[SR-2440] @escaping shouldn't be allowed outside of function param types #45045

jtbandes opened this issue Aug 20, 2016 · 2 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself diagnostics QoI Bug: Diagnostics Quality of Implementation good first issue Good for newcomers parser Area → compiler: The legacy C++ parser

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@jtbandes
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Previous ID SR-2440
Radar None
Original Reporter @jtbandes
Type Bug
Status Resolved
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, DiagnosticsQoI, Parser, StarterBug
Assignee None
Priority Medium

md5: 9b7c2291eec4b11174258156f4047a75

Issue Description:

Unless I'm mistaken, @escaping is meaningless unless it annotates the type of a function parameter.

This works today, but I think it should be an error:

func foo() -> (@escaping () -> ()) { fatalError() }
@jtbandes
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Here's some proof that escaping/noescape doesn't affect return types:

@belkadan
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This has been fixed in master.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself diagnostics QoI Bug: Diagnostics Quality of Implementation good first issue Good for newcomers parser Area → compiler: The legacy C++ parser
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@jtbandes @belkadan