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d33a5c16f2
If there was any requirements in the @objc protocol, the user got an error in
some form (a complaint about those requirements), but giving the direct error is
better, and handles @objc protocol with no requirements.
Also, fix a hole in that existing @objc method check: in `class Outer<T> { class
Inner {} }`, Inner should be considered generic, but the loop that was checking
for this didn't consider it.
Fixes https://bugs.swift.org/browse/SR-7370 and rdar://problem/39239512.
34 lines
862 B
Swift
34 lines
862 B
Swift
// RUN: %target-swift-frontend %s -typecheck -verify
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// REQUIRES: OS=macosx
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import Foundation
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import CoreData
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// Does not segfault
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@available(macOS 10.12, *)
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class Foo<T>: NSObject, NSFetchedResultsControllerDelegate {
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override init() {
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super.init()
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}
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@nonobjc func controllerWillChangeContent(_ controller: NSFetchedResultsController<NSFetchRequestResult>) {
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}
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}
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// Segfaults
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@available(macOS 10.12, *)
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class Bar<T>: NSObject {
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override init() {
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super.init()
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}
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}
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@available(macOS 10.12, *)
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extension Bar: NSFetchedResultsControllerDelegate {
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// expected-error@-1 {{conformance of generic class 'Bar<T>' to @objc protocol 'NSFetchedResultsControllerDelegate' cannot be in an extension}}
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@nonobjc func controllerWillChangeContent(_ controller: NSFetchedResultsController<NSFetchRequestResult>) {
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}
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}
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