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b7d17b25ba
A parse-only option is needed for parse performance tracking and the current option also includes semantic analysis.
83 lines
3.1 KiB
Swift
83 lines
3.1 KiB
Swift
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -typecheck %s -verify
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// REQUIRES: objc_interop
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import CoreFoundation
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import Foundation
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func testCFToObjC(_ cfStr: CFString, cfMutableStr: CFMutableString) {
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var nsStr: NSString = cfStr
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nsStr = cfMutableStr
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_ = nsStr
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var nsMutableStr: NSMutableString = cfMutableStr
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nsMutableStr = cfStr // expected-error{{cannot assign value of type 'CFString' to type 'NSMutableString'}}
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// sanity check
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nsStr = nsMutableStr
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}
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func testObjCToCF(_ nsStr: NSString, nsMutableStr: NSMutableString) {
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var cfStr: CFString = nsStr
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cfStr = nsMutableStr
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var cfMutableStr: CFMutableString = nsMutableStr
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cfMutableStr = cfStr // expected-error{{cannot assign value of type 'CFString' to type 'CFMutableString'}}
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// sanity check
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cfStr = cfMutableStr
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}
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func testCFToNative(_ cfStr: CFString, cfMutableStr: CFMutableString) {
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var str = cfStr as String
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str = cfMutableStr as String
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_ = str
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}
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func testNativeToCF(_ str: String) {
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var cfStr = str as CFString
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var cfMutableStr = str as CFMutableString // expected-error{{'String' is not convertible to 'CFMutableString'}} {{26-28=as!}}
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}
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func testCFToAnyObject(_ cfStr: CFString, cfMutableStr: CFMutableString,
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cfTree: CFTree) {
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var anyObject: AnyObject = cfStr
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anyObject = cfMutableStr
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anyObject = cfTree
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_ = anyObject
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}
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func testAnyObjectToCF(_ anyObject: AnyObject) {
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var cfStr: CFString = anyObject as! CFString
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var _: CFMutableString = anyObject as! CFMutableString
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var _: CFTree = anyObject as! CFTree
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// No implicit conversions.
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cfStr = anyObject // expected-error{{'AnyObject' is not convertible to 'CFString'; did you mean to use 'as!' to force downcast?}} {{20-20= as! CFString}}
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_ = cfStr
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}
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func testUncheckableCasts(_ anyObject: AnyObject, nsObject: NSObject,
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anyObjectType: AnyObject.Type,
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nsObjectType: NSObject.Type) {
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if let _ = anyObject as? CFString { } // expected-error{{conditional downcast to CoreFoundation type 'CFString' will always succeed}}
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if let _ = nsObject as? CFString { } // expected-error{{conditional downcast to CoreFoundation type 'CFString' will always succeed}}
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if let _ = anyObject as? CFTree { } // expected-error{{conditional downcast to CoreFoundation type 'CFTree' will always succeed}}
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if let _ = nsObject as? CFTree { } // expected-error{{will always succeed}}
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if let _ = anyObjectType as? CFString.Type { } // expected-error{{conditional downcast to CoreFoundation type 'CFString.Type' will always succeed}}
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if let _ = nsObjectType as? CFString.Type { } // expected-error{{conditional downcast to CoreFoundation type 'CFString.Type' will always succeed}}
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if let _ = anyObjectType as? CFTree.Type { } // expected-error{{conditional downcast to CoreFoundation type 'CFTree.Type' will always succeed}}
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if let _ = nsObjectType as? CFTree.Type { } // expected-error{{will always succeed}}
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}
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func testCFConvWithIUO(_ x: CFString!, y: NSString!) {
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func acceptCFString(_ a: CFString!) { }
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func acceptNSString(_ b: NSString!) { }
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acceptNSString(x)
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acceptCFString(y)
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}
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