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b7d17b25ba
A parse-only option is needed for parse performance tracking and the current option also includes semantic analysis.
32 lines
1.6 KiB
Swift
32 lines
1.6 KiB
Swift
// RUN: %target-typecheck-verify-swift
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// Positive and negative tests for String index types
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func acceptsCollection<I: Collection>(_: I) {}
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func acceptsBidirectionalCollection<I: BidirectionalCollection>(_: I) {}
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func acceptsRandomAccessCollection<I: RandomAccessCollection>(_: I) {}
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func testStringCollectionTypes(s: String) {
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acceptsCollection(s.utf8)
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acceptsBidirectionalCollection(s.utf8) // expected-error{{argument type 'String.UTF8View' does not conform to expected type 'BidirectionalCollection'}}
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acceptsRandomAccessCollection(s.utf8) // expected-error{{argument type 'String.UTF8View' does not conform to expected type 'RandomAccessCollection'}}
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// UTF16View is random-access with Foundation, bidirectional without
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acceptsCollection(s.utf16)
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acceptsBidirectionalCollection(s.utf16)
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acceptsRandomAccessCollection(s.utf16) // expected-error{{argument type 'String.UTF16View' does not conform to expected type 'RandomAccessCollection'}}
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acceptsCollection(s.unicodeScalars)
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acceptsBidirectionalCollection(s.unicodeScalars)
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acceptsRandomAccessCollection(s.unicodeScalars) // expected-error{{argument type 'String.UnicodeScalarView' does not conform to expected type 'RandomAccessCollection'}}
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acceptsCollection(s.characters)
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acceptsBidirectionalCollection(s.characters)
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acceptsRandomAccessCollection(s.characters) // expected-error{{argument type 'String.CharacterView' does not conform to expected type 'RandomAccessCollection'}}
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}
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struct NotLosslessStringConvertible {}
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func testStringInitT() {
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_ = String(NotLosslessStringConvertible()) // expected-error{{'init' has been renamed to 'init(describing:)}}{{14-14=describing: }}
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}
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