aaron.ballman added inline comments.
================
Comment at: clang-tidy/abseil/NoNamespaceCheck.cpp:23
+
+ Finder->addMatcher(namespaceDecl(hasName("absl")).bind("absl_namespace"),
+ this);
----------------
hokein wrote:
> aaron.ballman wrote:
> > I think this needs a `not(isExpansionInSystemHeader())` in there, as this
> > is going to trigger on code that includes a header file using an `absl`
> > namespace. If I'm incorrect and users typically include abseil as something
> > other than system includes, you'll have to find a different way to solve
> > this.
> Yeah, we have discussed this issue internally. abseil-user code usually
> includes abseil header like `#include "whatever/abseil/base/optimization.h"`,
> so `IsExpansionInSystemHeader` doesn't work for most cases.
>
> We need a way to filter out all headers being a part of abseil library. I
> think we can create a matcher `InExpansionInAbseilHeader` -- basically using
> `IsExpansionInFileMatching` with a regex expression that matches typical
> abseil include path. What do you think?
>
> And we'll have more abseil checks (e.g. `abseil-no-internal-deps`) that use
> `InExpansionInAbseilHeader`, we should put it to a common header.
I think that is a sensible approach.
Repository:
rCTE Clang Tools Extra
https://reviews.llvm.org/D50580
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