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e5899ee167
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
14 lines
532 B
Swift
14 lines
532 B
Swift
// RUN: %target-swift-frontend -I %S/Inputs -cxx-interoperability-mode=swift-5.9 -emit-ir %s -Xcc -fignore-exceptions | %FileCheck %s
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// REQUIRES: objc_interop
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import Foundation
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import CxxStdlib
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// CHECK: @"\01L_selector(UTF8String)"
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// CHECK: @objc_msgSend
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// CHECK: call swiftcc void @"$sSo3stdO3__1O0088basic_stringCCharstd__1char_traitsCCharstd__1allocatorCChar_cyHBywaEDexaCidvdFCgAayGjzaaV9CxxStdlibEyAFSPys4Int8VGSgcfC"
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let ObjCStr: NSString = "hello"
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let CxxStr = std.string(ObjCStr.utf8String) // Should not crash here
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