3 Commits

Author SHA1 Message Date
Ryosuke Niwa
05860f9b38
[WebKit checkers] Recognize ensureFoo functions (#119681)
In WebKit, we often write Foo::ensureBar function which lazily
initializes m_bar and returns a raw pointer or a raw reference to m_bar.
Such a return value is safe to use for the duration of a member function
call in Foo so long as m_bar is const so that it never gets unset or
updated with a new value once it's initialized.

This PR adds support for recognizing these types of functions and
treating its return value as a safe origin of a function argument
(including "this") or a local variable.
2024-12-13 01:48:29 -08:00
Sirraide
dde802b153
[Clang] [NFC] Refactor AST visitors in Sema and the static analyser to use DynamicRecursiveASTVisitor (#115144)
This pr refactors all recursive AST visitors in `Sema`, `Analyze`, and
`StaticAnalysis` to inherit from DRAV instead. This is over half of the
visitors that inherit from RAV directly.

See also #115132, #110040, #93462

LLVM Compile-Time Tracker link for this branch:
https://llvm-compile-time-tracker.com/compare.php?from=5adb5c05a2e9f31385fbba8b0436cbc07d91a44d&to=b58e589a86c06ba28d4d90613864d10be29aa5ba&stat=instructions%3Au
2024-11-15 08:04:08 +01:00
Ryosuke Niwa
ef353b02b0
Introduce a new WebKit checker for a unchecked call arguments (#113708) (#114522)
This PR introduces alpha.webkit.UncheckedCallArgsChecker which detects a
function argument which is a raw reference or a raw pointer to a
CheckedPtr capable object.
2024-11-07 08:34:37 -08:00