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69 lines
3.4 KiB
Swift
69 lines
3.4 KiB
Swift
// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// FIXME: BEGIN -enable-source-import hackaround
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -emit-module -o %t %clang-importer-sdk-path/swift-modules/Foundation.swift
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// FIXME: END -enable-source-import hackaround
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource -I %t) -typecheck %s -verify
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource -I %t) %s -dump-ast -verify 2>&1 | %FileCheck %s
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// REQUIRES: objc_interop
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import Foundation
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func testDowncastObjectToArray(obj: AnyObject, objImplicit: AnyObject!) {
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var nsstrArr1 = (obj as! [NSString])! // expected-error{{cannot force unwrap value of non-optional type '[NSString]'}}{{39-40=}}
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var strArr1 = (obj as! [String])! // expected-error{{cannot force unwrap value of non-optional type '[String]'}}{{35-36=}}
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var nsstrArr2 = (objImplicit as! [NSString])! // expected-error{{cannot force unwrap value of non-optional type '[NSString]'}}{{47-48=}}
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var strArr2 = (objImplicit as! [String])! // expected-error{{cannot force unwrap value of non-optional type '[String]'}}{{43-44=}}
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}
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func testArrayDowncast(arr: [AnyObject], arrImplicit: [AnyObject]!) {
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var nsstrArr1 = (arr as! [NSString])! // expected-error{{cannot force unwrap value of non-optional type '[NSString]'}} {{39-40=}}
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var strArr1 = (arr as! [String])! // expected-error{{cannot force unwrap value of non-optional type '[String]'}} {{35-36=}}
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var nsstrArr2 = (arrImplicit as! [NSString])! // expected-error{{cannot force unwrap value of non-optional type '[NSString]'}} {{47-48=}}
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var strArr2 = (arrImplicit as! [String])! // expected-error{{cannot force unwrap value of non-optional type '[String]'}} {{43-44=}}
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}
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func testDowncastNSArrayToArray(nsarray: NSArray) {
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_ = nsarray as! [NSString]
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_ = nsarray as! [String]
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}
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// CHECK-LABEL: testDowncastOptionalObject
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func testDowncastOptionalObject(obj: AnyObject?!) -> [String]? {
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// CHECK: (optional_evaluation_expr implicit type='[String]?'
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// CHECK-NEXT: (inject_into_optional implicit type='[String]?'
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// CHECK: (forced_checked_cast_expr type='[String]'{{.*value_cast}}
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// CHECK: (bind_optional_expr implicit type='AnyObject'
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// CHECK-NEXT: (force_value_expr implicit type='AnyObject?'
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// CHECK-NEXT: (declref_expr type='AnyObject?!'
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return obj as! [String]?
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}
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// CHECK-LABEL: testDowncastOptionalObjectConditional
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func testDowncastOptionalObjectConditional(obj: AnyObject?!) -> [String]?? {
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// CHECK: (optional_evaluation_expr implicit type='[String]??'
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// CHECK-NEXT: (inject_into_optional implicit type='[String]??'
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// CHECK-NEXT: (optional_evaluation_expr implicit type='[String]?'
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// CHECK-NEXT: (inject_into_optional implicit type='[String]?'
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// CHECK-NEXT: (bind_optional_expr implicit type='[String]'
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// CHECK-NEXT: (conditional_checked_cast_expr type='[String]?' {{.*value_cast}} writtenType='[String]?'
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// CHECK-NEXT: (bind_optional_expr implicit type='AnyObject'
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// CHECK-NEXT: (bind_optional_expr implicit type='AnyObject?'
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// CHECK-NEXT: (declref_expr type='AnyObject?!'
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return obj as? [String]?
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}
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// Do not crash examining the casted-to (or tested) type if it is
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// invalid (null or error_type).
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class rdar28583595 : NSObject {
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public func test(i: Int) {
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if i is Array {} // expected-error {{generic parameter 'Element' could not be inferred}}
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// expected-note@-1 {{explicitly specify the generic arguments to fix this issue}}
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}
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}
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