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[SR-4744] @objc Attribute validation should support Protocol Extension declaration #47321

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swift-ci opened this issue Apr 30, 2017 · 1 comment
Closed

[SR-4744] @objc Attribute validation should support Protocol Extension declaration #47321

swift-ci opened this issue Apr 30, 2017 · 1 comment
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compiler The Swift compiler in itself improvement runtime The Swift Runtime

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@swift-ci
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Previous ID SR-4744
Radar None
Original Reporter garricn (JIRA User)
Type Improvement
Status Resolved
Resolution Won't Do
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Improvement, Runtime
Assignee None
Priority Medium

md5: f63bdf0f8e3527e2918ab4f55f8dc55b

duplicates:

  • SR-3349 @objc methods cannot be contained in protocol extensions

Issue Description:

According to https://twitter.com/garricn/status/858489431270936577 the following code should compile:
Apparently, this is a known issue:

import Foundation

@objc protocol SomeProtocol {}

extension SomeProtocol {
    @objc func someFunction() {}
}

However, this code produces the following error at the second use of @objc:

@objc can only be used with members of classes, @objc protocols, and concrete extensions of classes
@belkadan
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belkadan commented May 2, 2017

See SR-3349 for discussion.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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@belkadan @swift-ci