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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
42 lines
2.6 KiB
Swift
42 lines
2.6 KiB
Swift
// Only run this test with older libc++, before the top-level std module got split into multiple top-level modules.
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// RUN: %empty-directory(%t)
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// RUN: %target-clangxx %S/Inputs/check-libcxx-version.cpp -o %t/check-libcxx-version
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// RUN: %target-codesign %t/check-libcxx-version
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// RUN: %target-run %t/check-libcxx-version || %target-swift-ide-test -print-module -module-to-print=CxxStdlib -source-filename=x -enable-experimental-cxx-interop -module-cache-path %t | %FileCheck %s -check-prefix=CHECK-STD
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// RUN: %target-run %t/check-libcxx-version || %target-swift-ide-test -print-module -module-to-print=CxxStdlib -source-filename=x -enable-experimental-cxx-interop -module-cache-path %t -module-print-submodules | %FileCheck %s -check-prefix=CHECK-STD-WITH-SUBMODULES
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// RUN: %target-run %t/check-libcxx-version || %target-swift-ide-test -print-module -module-to-print=CxxStdlib.iosfwd -source-filename=x -enable-experimental-cxx-interop -module-cache-path %t | %FileCheck %s -check-prefix=CHECK-IOSFWD
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// RUN: %target-run %t/check-libcxx-version || %target-swift-ide-test -print-module -module-to-print=CxxStdlib.string -source-filename=x -enable-experimental-cxx-interop -module-cache-path %t | %FileCheck %s -check-prefix=CHECK-STRING
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// This test is specific to libc++ and therefore only runs on Darwin platforms.
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// REQUIRES: OS=macosx || OS=ios
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// CHECK-STD: import CxxStdlib.iosfwd
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// CHECK-STD: import CxxStdlib.string
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// CHECK-STD-WITH-SUBMODULES: enum std {
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// CHECK-STD-WITH-SUBMODULES: enum __1 {
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// CHECK-STD-WITH-SUBMODULES-NOT: enum std
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// CHECK-IOSFWD: enum std {
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// CHECK-IOSFWD: enum __1 {
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// CHECK-IOSFWD: struct basic_string<CChar, std.__1.char_traits<CChar>, std.__1.allocator<CChar>> : CxxMutableRandomAccessCollection {
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// CHECK-IOSFWD: typealias value_type = CChar
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// CHECK-IOSFWD: }
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// CHECK-IOSFWD: struct basic_string<CWideChar, std.__1.char_traits<CWideChar>, std.__1.allocator<CWideChar>> : CxxMutableRandomAccessCollection {
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// CHECK-IOSFWD: typealias value_type = CWideChar
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// CHECK-IOSFWD: }
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// CHECK-IOSFWD: typealias string = std.__1.basic_string<CChar, std.__1.char_traits<CChar>, std.__1.allocator<CChar>>
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// CHECK-IOSFWD: typealias wstring = std.__1.basic_string<CWideChar, std.__1.char_traits<CWideChar>, std.__1.allocator<CWideChar>>
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// CHECK-IOSFWD: }
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// CHECK-IOSFWD: }
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// CHECK-IOSFWD-NOT: enum std
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// CHECK-STRING: enum std {
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// CHECK-STRING: enum __1 {
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// CHECK-STRING: static func to_string(_ __val: Int32) -> std.__1.string
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// CHECK-STRING: static func to_wstring(_ __val: Int32) -> std.__1.wstring
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// CHECK-STRING: }
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// CHECK-STRING: }
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// CHECK-STRING-NOT: enum std
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