[PATCH] D59802: [clang-tidy] Add new checker: llvm-prefer-isa-or-dyn-cast-in-conditionals

Aaron Ballman via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Apr 11 09:33:07 PDT 2019


aaron.ballman added inline comments.


================
Comment at: clang-tools-extra/clang-tidy/llvm/PreferIsaOrDynCastInConditionalsCheck.cpp:125
+    diag(MatchedDecl->getBeginLoc(),
+         "isa_and_nonnull<> is cleaner and more efficient")
+        << FixItHint::CreateReplacement(SourceRange(MatchedDecl->getBeginLoc(),
----------------
How about `'isa_and_nonnull<>' is preferred over an explicit test for null followed by calling 'isa<>'`?


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Comment at: clang-tools-extra/clang-tidy/llvm/PreferIsaOrDynCastInConditionalsCheck.h:37-39
+///  if (var && isa<T>(var)) {}
+///  // is replaced by:
+///  if (dyn_cast_or_null<T>(var.foo())) {}
----------------
I think this comment is now out of date.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D59802/new/

https://reviews.llvm.org/D59802





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