[PATCH] D113863: [clang-tidy] Make `readability-container-data-pointer` more robust

[Fabian Wolff via Phabricator via cfe-commits]

fwolff created this revision.
fwolff added reviewers: compnerd, alexfh, aaron.ballman.
fwolff added a project: clang-tools-extra.
Herald added subscribers: carlosgalvezp, xazax.hun.
fwolff requested review of this revision.
Herald added a subscriber: cfe-commits.

Fixes PR#52245. I've also added a few test cases beyond PR#52245 that would also fail with the current implementation, which is quite brittle in many respects (e.g. it uses the `hasDescendant()` matcher to find the container that is being accessed, which is very easy to trick, as in the example in PR#52245).

I have not been able to reproduce the second issue mentioned in PR#52245 (namely that using the `data()` member function is suggested even for containers that don't have it), but I've added a test case for it to be sure.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113863

Files:
  clang-tools-extra/clang-tidy/readability/ContainerDataPointerCheck.cpp
  clang-tools-extra/test/clang-tidy/checkers/readability-container-data-pointer.cpp

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