[PATCH] D49057: [analyzer] Track multiple raw pointer symbols in DanglingInternalBufferChecker

[Reka Kovacs via Phabricator via cfe-commits]

rnkovacs created this revision.
rnkovacs added reviewers: NoQ, xazax.hun, george.karpenkov.
Herald added subscribers: mikhail.ramalho, a.sidorin, dkrupp, szepet, baloghadamsoftware, whisperity.

Previously, the checker only tracked one raw pointer symbol for each container object. But member functions returning a pointer to the object's inner buffer may be called on the object several times.
These pointer symbols are now collected in a set inside the program state map and thus all of them is checked for use-after-free problems.


Repository:
  rC Clang

https://reviews.llvm.org/D49057

Files:
  lib/StaticAnalyzer/Checkers/DanglingInternalBufferChecker.cpp
  test/Analysis/dangling-internal-buffer.cpp

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