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92652c6c95
In order to allow supporting `__strong` (and `__weak`) struct fields, some parts of the ClangImporter needs to understand them. The changes in this commit allows the type importer to allow the already supported `__unsafe_unretained` struct fields, but still reject the `__strong` and `__weak` fields. Later changes will add support for bridging `__strong` and `__weak` fields. All the code should be equivalent to the previous code, and since all the structs with non-trivial copy/destroy are completely discarded, the code should not even be hit in any case. The included modifications in the tests check that the error and the diagnostics note are produced correctly.
77 lines
2.2 KiB
Swift
77 lines
2.2 KiB
Swift
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck -parse-as-library -verify-additional-file %clang-importer-sdk-path/usr/include/objc_structs.h -verify %s
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// REQUIRES: objc_interop
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import Foundation
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import objc_structs
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extension String {
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func onlyOnString() -> String { return self }
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}
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extension Bool {
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func onlyOnBool() -> Bool { return self }
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}
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extension Array {
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func onlyOnArray() { }
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}
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extension Dictionary {
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func onlyOnDictionary() { }
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}
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extension Set {
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func onlyOnSet() { }
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}
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func foo() {
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_ = NSStringToNSString as (String?) -> String?
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_ = DummyClass().nsstringProperty.onlyOnString() as String
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_ = BOOLtoBOOL as (Bool) -> Bool
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_ = DummyClass().boolProperty.onlyOnBool() as Bool
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_ = arrayToArray as (Array<Any>?) -> (Array<Any>?)
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DummyClass().arrayProperty.onlyOnArray()
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_ = dictToDict as (Dictionary<AnyHashable, Any>?) -> Dictionary<AnyHashable, Any>?
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DummyClass().dictProperty.onlyOnDictionary()
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_ = setToSet as (Set<AnyHashable>?) -> Set<AnyHashable>?
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DummyClass().setProperty.onlyOnSet()
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}
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func allocateMagic(_ zone: NSZone) -> UnsafeMutableRawPointer {
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return allocate(zone)
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}
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func constPointerToObjC(_ objects: [AnyObject]) -> NSArray {
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return NSArray(objects: objects, count: objects.count)
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}
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func mutablePointerToObjC(_ path: String) throws -> NSString {
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return try NSString(contentsOfFile: path)
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}
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func objcStructs(_ s: StructOfNSStrings, sb: StructOfBlocks) {
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// Struct fields must not be bridged.
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_ = s.nsstr! as Bool // expected-error {{cannot convert value of type 'Unmanaged<NSString>' to type 'Bool' in coercion}}
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// FIXME: Blocks should also be Unmanaged.
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_ = sb.block as Bool // expected-error {{cannot convert value of type '@convention(block) () -> Void' to type 'Bool' in coercion}}
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sb.block() // okay
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// Structs with non-trivial copy/destroy should not be imported
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_ = WeaksInAStruct() // expected-error {{cannot find 'WeaksInAStruct' in scope}}
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_ = StrongsInAStruct() // expected-error {{cannot find 'StrongsInAStruct' in scope}}
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}
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func test_repair_does_not_interfere_with_conversions() {
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func foo(_: Any, _: AnyHashable) {}
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func bar(_ a: AnyObject, _ b: AnyObject) {
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foo(a, b as! NSObject) // Ok
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}
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}
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