[clang] [clang] fix(92759): clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp: 6 * Function parameter should be passed by const reference (PR #93252)

[Oleksandr T. via cfe-commits]

https://github.com/a-tarasyuk created 
https://github.com/llvm/llvm-project/pull/93252

Fixes #92759

>From 994791b862dfecf7bb370f32834645011e69137d Mon Sep 17 00:00:00 2001
From: Oleksandr T <oleksandr.taras...@outlook.com>
Date: Fri, 24 May 2024 01:39:35 +0300
Subject: [PATCH] fix(92759): use const references

---
 .../Frontend/Rewrite/RewriteModernObjC.cpp    | 31 ++++++++++---------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp 
b/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp
index 6ae955a2380b7..dd8ee117f60c6 100644
--- a/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp
+++ b/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp
@@ -465,13 +465,14 @@ namespace {
 
     std::string SynthesizeByrefCopyDestroyHelper(VarDecl *VD, int flag);
     std::string SynthesizeBlockHelperFuncs(BlockExpr *CE, int i,
-                                      StringRef funcName, std::string Tag);
+                                      StringRef funcName, const std::string 
&Tag);
     std::string SynthesizeBlockFunc(BlockExpr *CE, int i,
-                                      StringRef funcName, std::string Tag);
+                                      StringRef funcName, const std::string 
&Tag);
     std::string SynthesizeBlockImpl(BlockExpr *CE,
-                                    std::string Tag, std::string Desc);
-    std::string SynthesizeBlockDescriptor(std::string DescTag,
-                                          std::string ImplTag,
+                                    const std::string &Tag,
+                                    const std::string &Desc);
+    std::string SynthesizeBlockDescriptor(const std::string &DescTag,
+                                          const std::string &ImplTag,
                                           int i, StringRef funcName,
                                           unsigned hasCopy);
     Stmt *SynthesizeBlockCall(CallExpr *Exp, const Expr* BlockExp);
@@ -4037,7 +4038,7 @@ static bool HasLocalVariableExternalStorage(ValueDecl 
*VD) {
 
 std::string RewriteModernObjC::SynthesizeBlockFunc(BlockExpr *CE, int i,
                                                    StringRef funcName,
-                                                   std::string Tag) {
+                                                   const std::string &Tag) {
   const FunctionType *AFT = CE->getFunctionType();
   QualType RT = AFT->getReturnType();
   std::string StructRef = "struct " + Tag;
@@ -4132,8 +4133,8 @@ std::string 
RewriteModernObjC::SynthesizeBlockFunc(BlockExpr *CE, int i,
 }
 
 std::string RewriteModernObjC::SynthesizeBlockHelperFuncs(BlockExpr *CE, int i,
-                                                   StringRef funcName,
-                                                   std::string Tag) {
+                                                          StringRef funcName,
+                                                          const std::string 
&Tag) {
   std::string StructRef = "struct " + Tag;
   std::string S = "static void __";
 
@@ -4175,8 +4176,9 @@ std::string 
RewriteModernObjC::SynthesizeBlockHelperFuncs(BlockExpr *CE, int i,
   return S;
 }
 
-std::string RewriteModernObjC::SynthesizeBlockImpl(BlockExpr *CE, std::string 
Tag,
-                                             std::string Desc) {
+std::string RewriteModernObjC::SynthesizeBlockImpl(BlockExpr *CE,
+                                                   const std::string &Tag,
+                                                   const std::string &Desc) {
   std::string S = "\nstruct " + Tag;
   std::string Constructor = "  " + Tag;
 
@@ -4290,10 +4292,11 @@ std::string 
RewriteModernObjC::SynthesizeBlockImpl(BlockExpr *CE, std::string Ta
   return S;
 }
 
-std::string RewriteModernObjC::SynthesizeBlockDescriptor(std::string DescTag,
-                                                   std::string ImplTag, int i,
-                                                   StringRef FunName,
-                                                   unsigned hasCopy) {
+std::string RewriteModernObjC::SynthesizeBlockDescriptor(const std::string 
&DescTag,
+                                                         const std::string 
&ImplTag,
+                                                         int i,
+                                                         StringRef FunName,
+                                                         unsigned hasCopy) {
   std::string S = "\nstatic struct " + DescTag;
 
   S += " {\n  size_t reserved;\n";

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