[clang-tools-extra] 26c99c4 - [clang-tidy] fix misc-const-correctness to work with function-try-blocks (#99925)

[Piotr Zegar via cfe-commits]

Author: Thomas Schenker
Date: 2024-07-23T07:38:49Z
New Revision: 26c99c421794902b0d929fd9eff81314da55675c

URL: https://github.com/llvm/llvm-project/commit/26c99c421794902b0d929fd9eff81314da55675c
DIFF: https://github.com/llvm/llvm-project/commit/26c99c421794902b0d929fd9eff81314da55675c.diff

LOG: [clang-tidy] fix misc-const-correctness to work with function-try-blocks (#99925)

Make the clang-tidy check misc-const-correctness work with
function-try-blocks.

Fixes #99860.

Added: 
    

Modified: 
    clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp
    clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.h
    clang-tools-extra/docs/ReleaseNotes.rst
    clang-tools-extra/test/clang-tidy/checkers/misc/const-correctness-values.cpp

Removed: 
    


################################################################################
diff  --git a/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp b/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp
index 8b500de0c028c..e20cf6fbcb55a 100644
--- a/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp
+++ b/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.cpp
@@ -93,13 +93,12 @@ void ConstCorrectnessCheck::registerMatchers(MatchFinder *Finder) {
   // shall be run.
   const auto FunctionScope =
       functionDecl(
-          hasBody(
-              compoundStmt(forEachDescendant(
-                               declStmt(containsAnyDeclaration(
-                                            LocalValDecl.bind("local-value")),
-                                        unless(has(decompositionDecl())))
-                                   .bind("decl-stmt")))
-                  .bind("scope")))
+          hasBody(stmt(forEachDescendant(
+                           declStmt(containsAnyDeclaration(
+                                        LocalValDecl.bind("local-value")),
+                                    unless(has(decompositionDecl())))
+                               .bind("decl-stmt")))
+                      .bind("scope")))
           .bind("function-decl");
 
   Finder->addMatcher(FunctionScope, this);
@@ -109,7 +108,7 @@ void ConstCorrectnessCheck::registerMatchers(MatchFinder *Finder) {
 enum class VariableCategory { Value, Reference, Pointer };
 
 void ConstCorrectnessCheck::check(const MatchFinder::MatchResult &Result) {
-  const auto *LocalScope = Result.Nodes.getNodeAs<CompoundStmt>("scope");
+  const auto *LocalScope = Result.Nodes.getNodeAs<Stmt>("scope");
   const auto *Variable = Result.Nodes.getNodeAs<VarDecl>("local-value");
   const auto *Function = Result.Nodes.getNodeAs<FunctionDecl>("function-decl");
 
@@ -198,7 +197,7 @@ void ConstCorrectnessCheck::check(const MatchFinder::MatchResult &Result) {
   }
 }
 
-void ConstCorrectnessCheck::registerScope(const CompoundStmt *LocalScope,
+void ConstCorrectnessCheck::registerScope(const Stmt *LocalScope,
                                           ASTContext *Context) {
   auto &Analyzer = ScopesCache[LocalScope];
   if (!Analyzer)

diff  --git a/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.h b/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.h
index 08ffde524522a..bba060e555d00 100644
--- a/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.h
+++ b/clang-tools-extra/clang-tidy/misc/ConstCorrectnessCheck.h
@@ -32,10 +32,10 @@ class ConstCorrectnessCheck : public ClangTidyCheck {
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 
 private:
-  void registerScope(const CompoundStmt *LocalScope, ASTContext *Context);
+  void registerScope(const Stmt *LocalScope, ASTContext *Context);
 
   using MutationAnalyzer = std::unique_ptr<ExprMutationAnalyzer>;
-  llvm::DenseMap<const CompoundStmt *, MutationAnalyzer> ScopesCache;
+  llvm::DenseMap<const Stmt *, MutationAnalyzer> ScopesCache;
   llvm::DenseSet<SourceLocation> TemplateDiagnosticsCache;
 
   const bool AnalyzeValues;

diff  --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
index 0b2c04c23761c..083b098d05d4a 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -381,7 +381,8 @@ Changes in existing checks
 - Improved :doc:`misc-const-correctness
   <clang-tidy/checks/misc/const-correctness>` check by avoiding infinite recursion
   for recursive functions with forwarding reference parameters and reference
-  variables which refer to themselves.
+  variables which refer to themselves. Also adapted the check to work with
+  function-try-blocks.
 
 - Improved :doc:`misc-definitions-in-headers
   <clang-tidy/checks/misc/definitions-in-headers>` check by replacing the local

diff  --git a/clang-tools-extra/test/clang-tidy/checkers/misc/const-correctness-values.cpp b/clang-tools-extra/test/clang-tidy/checkers/misc/const-correctness-values.cpp
index cb6bfcc1dccba..2af4bfb0bd449 100644
--- a/clang-tools-extra/test/clang-tidy/checkers/misc/const-correctness-values.cpp
+++ b/clang-tools-extra/test/clang-tidy/checkers/misc/const-correctness-values.cpp
@@ -56,6 +56,15 @@ void some_function(double np_arg0, wchar_t np_arg1) {
   np_local6--;
 }
 
+int function_try_block() try {
+  int p_local0 = 0;
+  // CHECK-MESSAGES: [[@LINE-1]]:3: warning: variable 'p_local0' of type 'int' can be declared 'const'
+  // CHECK-FIXES: int const p_local0
+  return p_local0;
+} catch (...) {
+  return 0;
+}
+
 void nested_scopes() {
   int p_local0 = 2;
   // CHECK-MESSAGES: [[@LINE-1]]:3: warning: variable 'p_local0' of type 'int' can be declared 'const'