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When importing C++ class template instantiations, Swift generates a type name for each instantiation. The generated names must be unique, since they are used for mangling. If multiple different C++ types declare nested types with the same name, which are then used as template arguments, Swift was generating the same name for those template instantiations (e.g. `shared_ptr<Impl>` for different `Impl` types). This change makes sure we use fully-qualified type names of template parameters when generating Swift type names for class template instantiations (e.g. `shared_ptr<MyNamespace.MyClass.Impl>`). This fixes an assertion failure coming out of IRGen: ``` Assertion failed: (Buffer.empty() && "didn't claim all values out of buffer"), function ~ConstantInitBuilderBase, file ConstantInitBuilder.h, line 75. ``` rdar://141962480
29 lines
1.8 KiB
Swift
29 lines
1.8 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-ide-test -print-module -module-to-print=CxxStdlib -source-filename=x -enable-experimental-cxx-interop -module-cache-path %t > %t/interface.swift
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// RUN: %FileCheck %s -check-prefix=CHECK-STD < %t/interface.swift
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// RUN: %FileCheck %s -check-prefix=CHECK-SIZE-T < %t/interface.swift
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// RUN: %FileCheck %s -check-prefix=CHECK-TO-STRING < %t/interface.swift
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// RUN: %FileCheck %s -check-prefix=CHECK-STRING < %t/interface.swift
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// Running this test with different versions of libstdc++ will result in the decls being printed in different order.
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// This test is specific to libstdc++ and only runs on platforms where libstdc++ is used.
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// REQUIRES: OS=linux-gnu
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// CHECK-STD: enum std {
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// CHECK-STRING: struct basic_string<CChar, std{{(.__cxx11)?}}.char_traits<CChar>, std{{(.__cxx11)?}}.allocator<CChar>> : CxxMutableRandomAccessCollection {
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// CHECK-STRING: typealias value_type = std.char_traits<CChar>.char_type
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// CHECK-STRING: }
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// CHECK-STRING: struct basic_string<CWideChar, std{{(.__cxx11)?}}.char_traits<CWideChar>, std{{(.__cxx11)?}}.allocator<CWideChar>> : CxxMutableRandomAccessCollection {
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// CHECK-STRING: typealias value_type = std.char_traits<CWideChar>.char_type
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// CHECK-STRING: }
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// CHECK-TO-STRING: static func to_string(_ __val: Int32) -> std{{(.__cxx11)?}}.string
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// CHECK-TO-STRING: static func to_wstring(_ __val: Int32) -> std{{(.__cxx11)?}}.wstring
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// CHECK-SIZE-T: typealias size_t = Int
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// CHECK-STRING: typealias string = std{{(.__cxx11)?}}.basic_string<CChar, std{{(.__cxx11)?}}.char_traits<CChar>, std{{(.__cxx11)?}}.allocator<CChar>>
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// CHECK-STRING: typealias wstring = std{{(.__cxx11)?}}.basic_string<CWideChar, std{{(.__cxx11)?}}.char_traits<CWideChar>, std{{(.__cxx11)?}}.allocator<CWideChar>>
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// CHECK-STD: }
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