Author: Joachim Priesner
Date: 2022-06-20T13:30:30+01:00
New Revision: 541a50e20702a8046fe5076742611354cb6dd0f3

URL: 
https://github.com/llvm/llvm-project/commit/541a50e20702a8046fe5076742611354cb6dd0f3
DIFF: 
https://github.com/llvm/llvm-project/commit/541a50e20702a8046fe5076742611354cb6dd0f3.diff

LOG: [clang-tidy] bugprone-argument-comment: Ignore calls to user-defined 
literals

Without this change, code such as "f(/*param=*/1_op)" will check the
comment twice, once for the parameter of f (correct) and once for
the parameter of operator""_op (likely incorrect). The change removes
only the second check.

Reviewed By: njames93, LegalizeAdulthood

Differential Revision: https://reviews.llvm.org/D125885

Added: 
    

Modified: 
    clang-tools-extra/clang-tidy/bugprone/ArgumentCommentCheck.cpp
    
clang-tools-extra/test/clang-tidy/checkers/bugprone-argument-comment-literals.cpp

Removed: 
    


################################################################################
diff  --git a/clang-tools-extra/clang-tidy/bugprone/ArgumentCommentCheck.cpp 
b/clang-tools-extra/clang-tidy/bugprone/ArgumentCommentCheck.cpp
index 3836e4cf3990d..396b36d6e9afe 100644
--- a/clang-tools-extra/clang-tidy/bugprone/ArgumentCommentCheck.cpp
+++ b/clang-tools-extra/clang-tidy/bugprone/ArgumentCommentCheck.cpp
@@ -60,7 +60,7 @@ void 
ArgumentCommentCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
 
 void ArgumentCommentCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
-      callExpr(unless(cxxOperatorCallExpr()),
+      callExpr(unless(cxxOperatorCallExpr()), unless(userDefinedLiteral()),
                // NewCallback's arguments relate to the pointed function,
                // don't check them against NewCallback's parameter names.
                // FIXME: Make this configurable.

diff  --git 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone-argument-comment-literals.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone-argument-comment-literals.cpp
index d1f98bd0857bb..d576c187b101f 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/bugprone-argument-comment-literals.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/bugprone-argument-comment-literals.cpp
@@ -29,7 +29,7 @@ void h(double b);
 void i(const char *c);
 void j(int a, int b, int c);
 
-double operator"" _km(long double);
+double operator"" _km(long double value);
 
 void test() {
   A a;
@@ -171,6 +171,8 @@ void test() {
   g((1));
   // FIXME But we should not add argument comments here.
   g(_Generic(0, int : 0));
+
+  402.0_km;
 }
 
 void f(bool _with_underscores_);


        
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