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c53b8147a3
To determine whether to conform a C++ type to `CxxSequence` protocol automatically, ClangImporter checks if the corresponding iterator type conforms to `UnsafeCxxInputIterator`. This logic had false-positives, e.g. `Optional<OpaquePointer>` was treated as if it conforms to `UnsafeCxxInputIterator` while it actually doesn't. This happened because `lookupConformance` returned a conformance with a conditional requirement (`Wrapped : UnsafeCxxInputIterator`) that is not satisfied for `OpaquePointer`. rdar://100265664
67 lines
2.6 KiB
Swift
67 lines
2.6 KiB
Swift
// RUN: %target-swift-ide-test -print-module -module-to-print=CustomSequence -source-filename=x -I %S/Inputs -enable-experimental-cxx-interop -module-cache-path %t | %FileCheck %s
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// CHECK: import Cxx
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// CHECK: struct SimpleSequence : CxxSequence {
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// CHECK: typealias Element = ConstIterator.Pointee
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// CHECK: typealias Iterator = CxxIterator<SimpleSequence>
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// CHECK: typealias RawIterator = ConstIterator
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// CHECK: }
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// CHECK: struct SimpleSequenceWithOutOfLineEqualEqual : CxxSequence {
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// CHECK: typealias Element = ConstIteratorOutOfLineEq.Pointee
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// CHECK: typealias Iterator = CxxIterator<SimpleSequenceWithOutOfLineEqualEqual>
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// CHECK: typealias RawIterator = ConstIteratorOutOfLineEq
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// CHECK: }
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// CHECK: struct SimpleArrayWrapper : CxxSequence {
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// CHECK: typealias Element = UnsafePointer<Int32>.Pointee
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// CHECK: typealias Iterator = CxxIterator<SimpleArrayWrapper>
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// CHECK: typealias RawIterator = UnsafePointer<Int32>
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// CHECK: }
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// CHECK: struct SimpleArrayWrapperNullableIterators : CxxSequence {
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// CHECK: typealias Element = Optional<UnsafePointer<Int32>>.Pointee
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// CHECK: typealias Iterator = CxxIterator<SimpleArrayWrapperNullableIterators>
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// CHECK: typealias RawIterator = UnsafePointer<Int32>?
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// CHECK: }
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// CHECK: struct SimpleEmptySequence : CxxSequence {
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// CHECK: typealias Element = Optional<UnsafePointer<Int32>>.Pointee
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// CHECK: typealias Iterator = CxxIterator<SimpleEmptySequence>
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// CHECK: typealias RawIterator = UnsafePointer<Int32>?
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// CHECK: }
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// CHECK: struct HasMutatingBeginEnd : CxxSequence {
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// CHECK: typealias Element = ConstIterator.Pointee
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// CHECK: typealias Iterator = CxxIterator<HasMutatingBeginEnd>
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// CHECK: typealias RawIterator = ConstIterator
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// CHECK: }
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// CHECK: struct HasNoBeginMethod {
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// CHECK-NOT: typealias Element
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// CHECK-NOT: typealias Iterator
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// CHECK-NOT: typealias RawIterator
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// CHECK: }
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// CHECK: struct HasNoEndMethod {
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// CHECK-NOT: typealias Element
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// CHECK-NOT: typealias Iterator
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// CHECK-NOT: typealias RawIterator
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// CHECK: }
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// CHECK: struct HasBeginEndTypeMismatch {
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// CHECK-NOT: typealias Element
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// CHECK-NOT: typealias Iterator
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// CHECK-NOT: typealias RawIterator
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// CHECK: }
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// CHECK: struct HasBeginEndReturnNonIterators {
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// CHECK-NOT: typealias Element
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// CHECK-NOT: typealias Iterator
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// CHECK-NOT: typealias RawIterator
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// CHECK: }
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// CHECK: struct __CxxTemplateInst20HasTemplatedIteratorIi12NoDefinitionIiEE {
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// CHECK-NOT: typealias Element
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// CHECK-NOT: typealias Iterator
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// CHECK-NOT: typealias RawIterator
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// CHECK: }
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// CHECK: typealias HasUninstantiatableIterator = __CxxTemplateInst20HasTemplatedIteratorIi12NoDefinitionIiEE
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