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31c01eab73
includes a number of QoI things to help people write the correct code. I will commit the testcase for it as the next patch. The bulk of this patch is moving the stdlib, testsuite and validation testsuite to the new syntax. I moved a few uses of "as" patterns back to as? expressions in the stdlib as well. Swift SVN r27959
79 lines
3.1 KiB
Swift
79 lines
3.1 KiB
Swift
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -parse %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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var nsMutableStr: NSMutableString = cfMutableStr
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nsMutableStr = cfStr // expected-error{{cannot assign a value of type 'CFString' to a value of 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 a value of type 'CFString' to a value of 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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}
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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'}}
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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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}
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func testAnyObjectToCF(anyObject: AnyObject) {
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var cfStr: CFString = anyObject as! CFString
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var cfMutableStr: CFMutableString = anyObject as! CFMutableString
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var cfTree: 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?}}
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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 cfStr = anyObject as? CFString { } // expected-error{{conditional downcast to CoreFoundation type 'CFString' will always succeed}}
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if let cfStr = nsObject as? CFString { } // expected-error{{conditional downcast to CoreFoundation type 'CFString' will always succeed}}
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if let cfTree = anyObject as? CFTree { } // expected-error{{conditional downcast to CoreFoundation type 'CFTree' will always succeed}}
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if let cfTree = nsObject as? CFTree { } // expected-error{{will always succeed}}
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if let cfStrType = anyObjectType as? CFString.Type { } // expected-error{{conditional downcast to CoreFoundation type 'CFString.Type' will always succeed}}
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if let cfStrType = nsObjectType as? CFString.Type { } // expected-error{{conditional downcast to CoreFoundation type 'CFString.Type' will always succeed}}
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if let cfTreeType = anyObjectType as? CFTree.Type { } // expected-error{{conditional downcast to CoreFoundation type 'CFTree.Type' will always succeed}}
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if let cfTreeType = 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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