[PATCH] D97297: [clang-tidy] Suppress reports to patternedly named parameters in 'bugprone-easily-swappable-parameters'

[Whisperity via Phabricator via cfe-commits]

whisperity added inline comments.


================
Comment at: clang-tools-extra/clang-tidy/bugprone/EasilySwappableParametersCheck.cpp:364-365
+                                                StringRef S2) {
+  StringRef S1Prefix = S1.take_front(S1.size() - N),
+            S2Prefix = S2.take_front(S2.size() - N);
+  return S1Prefix == S2Prefix && !S1Prefix.empty();
----------------
aaron.ballman wrote:
> Should we be checking that `.size() - N` doesn't cause wraparound?
Wraparound as in underflow? Like `2 - 8` becoming multiple millions? The incoming strings are padded to the common length.

`take_xxx` won't let you go out of bounds, even if the parameter is greater than the string's length. It will just silently return the entire string.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D97297/new/

https://reviews.llvm.org/D97297