[PATCH] D67243: Add crash-triggering test case and more null checks in YAML parser

[Thomas Finch via Phabricator via llvm-commits]

thomasfinch created this revision.
Herald added subscribers: llvm-commits, kristina.
Herald added a project: LLVM.

Fix crashes when parsing flow tokens outside of a mapping or sequence node

Fix assert when reading a directive then a mapping with no value

Fix infinite loop in unescapeDoubleQuoted for invalid escapes

Make Scanner::consume unexpected characters error nonfatal

Fix ASan-caught use-after-poison with YAML parser SimpleKeys

Add test for unknown directives


Repository:
  rL LLVM

https://reviews.llvm.org/D67243

Files:
  lib/Support/YAMLParser.cpp
  lib/Support/YAMLTraits.cpp
  unittests/Support/YAMLIOTest.cpp

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