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40650baf7f
Iterating over a `CxxSequence` that is not a `CxxRandomAccessCollection` triggers a copy of the C++ collection. Let's disable the automatic conformances until we find a more efficient solution. This means that for now developers won't be able to iterate over a `std::set` or `std::list` with a Swift for-in loop. I will submit a separate patch with an alternative solution for such types. C++ random access collections, such as `std::vector` or `std::string`, are not affected.
59 lines
2.3 KiB
Swift
59 lines
2.3 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: struct SimpleSequence {
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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 {
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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 SimpleArrayWrapperNullableIterators {
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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 {
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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 {
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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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