[PATCH] D67578: New ClangTidy check to warn when writing to a dispatch_once_t variable.

[Michael Wyman via Phabricator via cfe-commits]

mwyman created this revision.
mwyman added reviewers: benhamilton, hokein, stephanemoore.
Herald added subscribers: cfe-commits, mgorny.
Herald added a project: clang.

Libdispatch documentation specifies that dispatch_once_ts must never have been non-zero, and assigning to them violates this.

Currently adding this to the `misc` module. Per discussion in https://reviews.llvm.org/D67567, perhaps this should be moved to a new, more specific module.


Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D67578

Files:
  clang-tools-extra/clang-tidy/misc/CMakeLists.txt
  clang-tools-extra/clang-tidy/misc/DispatchOnceAssignmentCheck.cpp
  clang-tools-extra/clang-tidy/misc/DispatchOnceAssignmentCheck.h
  clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp
  clang-tools-extra/docs/ReleaseNotes.rst
  clang-tools-extra/docs/clang-tidy/checks/list.rst
  clang-tools-extra/docs/clang-tidy/checks/misc-dispatch-once-assignment.rst
  clang-tools-extra/test/clang-tidy/misc-dispatch-once-assignment.cpp

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