John Hui 140552054c [cxx-interop] Fix template parameter printing scheme for const types (#79237) ...

This patch changes the class template printer to disambiguate const-qualified template arguments by wrapping them with __cxxConst<>, rather than suffixing them with _const.

This is necessary to accommodate template arguments that aren't just identifiers (i.e., Foo<Int_const> is ok, but Foo<Bar<T>_const> and Foo<((Bar) -> Baz)_const> are not syntactically valid). With this patch, we would produce Foo<__cxxConst<Int>>, Foo<__cxxConst<Bar<T>>, and Foo<__cxxConst<((Bar) -> Baz)>> instead.

This patch also disambiguates volatile-qualified template arguments with __cxxVolatile<>, and changes the printing scheme for std::nullptr_t from nil to __cxxNullPtrT (since nil is not a syntactically valid type name).

rdar://143769901

2025-02-28 19:41:55 -08:00

8.8 KiB

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