https://bugs.llvm.org/show_bug.cgi?id=42193
Bug ID: 42193
Summary: hasName AST matcher is confused by extern "C" in
namespace
Product: clang
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: kpreis...@gmail.com
CC: llvm-bugs@lists.llvm.org, neeil...@live.com,
richard-l...@metafoo.co.uk
Given the following code:
namespace foo {
extern "C" void test() {}
}
... I expect an AST matcher declared as functionDecl(hasName("::foo::test")) to
match the function, but functionDecl(hasName("::test")) should not match.
However, the opposite is the case. (see the example on Compiler Explorer:
http://ce.steveire.com/z/VDTi_g)
When I do this locally with a build with assertions, I get an assertion failure
at
https://github.com/llvm/llvm-project/blob/bca56ab073a00cdec8e0995e3119baf25cf775b8/clang/lib/ASTMatchers/ASTMatchersInternal.cpp#L540,
so I think the problem is that matchesNodeFullFast does not correctly handle
extern "C" functions.
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