[PATCH] D148462: [clang-tidy] Ignore declarations in bugprone-exception-escape

[Piotr Zegar via Phabricator via cfe-commits]

PiotrZSL created this revision.
PiotrZSL added reviewers: njames93, carlosgalvezp.
Herald added a subscriber: xazax.hun.
Herald added a project: All.
PiotrZSL requested review of this revision.
Herald added a project: clang-tools-extra.
Herald added a subscriber: cfe-commits.

Warnings will now only be printed for function definitions, not declarations


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D148462

Files:
  clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp
  clang-tools-extra/docs/ReleaseNotes.rst
  clang-tools-extra/test/clang-tidy/checkers/bugprone/exception-escape.cpp


Index: clang-tools-extra/test/clang-tidy/checkers/bugprone/exception-escape.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/bugprone/exception-escape.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/bugprone/exception-escape.cpp
@@ -651,7 +651,6 @@
 }
 
 int indirectly_recursive(int n) noexcept;
-  // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: an exception may be thrown in function 'indirectly_recursive' which should not throw exceptions
 
 int recursion_helper(int n) {
   indirectly_recursive(n);
Index: clang-tools-extra/docs/ReleaseNotes.rst
===================================================================
--- clang-tools-extra/docs/ReleaseNotes.rst
+++ clang-tools-extra/docs/ReleaseNotes.rst
@@ -191,6 +191,10 @@
   <clang-tidy/checks/bugprone/dynamic-static-initializers>` check.
   Global options of the same name should be used instead.
 
+- Improved :doc:`bugprone-exception-escape
+  <clang-tidy/checks/bugprone/exception-escape>` to not emit warnings for
+  forward declarations of functions.
+
 - Improved :doc:`bugprone-fold-init-type
   <clang-tidy/checks/bugprone/fold-init-type>` to handle iterators that do not
   define `value_type` type aliases.
Index: clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp
+++ clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp
@@ -52,7 +52,8 @@
 
 void ExceptionEscapeCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
-      functionDecl(anyOf(isNoThrow(), cxxDestructorDecl(),
+      functionDecl(isDefinition(),
+                   anyOf(isNoThrow(), cxxDestructorDecl(),
                          cxxConstructorDecl(isMoveConstructor()),
                          cxxMethodDecl(isMoveAssignmentOperator()),
                          hasName("main"), hasName("swap"),


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