🍒 Diagnose conformances on @objcImpl extensions #66649
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@objcImpl extensions aren’t allowed to declare new conformances; instead, they should either be declared in the header or in an ordinary extensions. (If they were permitted, they’d be ignored.) Fixes rdar://110669366. # Conflicts: # test/decl/ext/objc_implementation.swift
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@swift-ci please test |
nkcsgexi
approved these changes
Jun 14, 2023
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@_objcImplementationextensions aren’t allowed to declare new conformances; instead, they should either be declared in the header or in an ordinary extensions. (If they were permitted, they’d be ignored.) Diagnose attempts to do so. In Swift 5.9, these will be warnings to avoid breaking early adopters.@_objcImplementationand are incorrectly declaring conformances on the extension.