[clang-tools-extra] [clang-doc] Apply modernize-use-string-view to the code (PR #180332)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang-tools-extra

Author: Zinovy Nis (irishrover)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/180332.diff


3 Files Affected:

- (modified) clang-tools-extra/clang-doc/Generators.cpp (+1-1) 
- (modified) clang-tools-extra/clang-doc/Generators.h (+1-1) 
- (modified) clang-tools-extra/clang-doc/tool/ClangDocMain.cpp (+2-2) 


``````````diff
diff --git a/clang-tools-extra/clang-doc/Generators.cpp b/clang-tools-extra/clang-doc/Generators.cpp
index fafe41eebb779..eca1f288d5ba1 100644
--- a/clang-tools-extra/clang-doc/Generators.cpp
+++ b/clang-tools-extra/clang-doc/Generators.cpp
@@ -32,7 +32,7 @@ findGeneratorByName(llvm::StringRef Format) {
 
 // Enum conversion
 
-std::string getTagType(TagTypeKind AS) {
+llvm::StringRef getTagType(TagTypeKind AS) {
   switch (AS) {
   case TagTypeKind::Class:
     return "class";
diff --git a/clang-tools-extra/clang-doc/Generators.h b/clang-tools-extra/clang-doc/Generators.h
index a50f1ac25eda9..ade0bb53eba7e 100644
--- a/clang-tools-extra/clang-doc/Generators.h
+++ b/clang-tools-extra/clang-doc/Generators.h
@@ -51,7 +51,7 @@ typedef llvm::Registry<Generator> GeneratorRegistry;
 llvm::Expected<std::unique_ptr<Generator>>
 findGeneratorByName(llvm::StringRef Format);
 
-std::string getTagType(TagTypeKind AS);
+llvm::StringRef getTagType(TagTypeKind AS);
 
 llvm::Error createFileOpenError(StringRef FileName, std::error_code EC);
 
diff --git a/clang-tools-extra/clang-doc/tool/ClangDocMain.cpp b/clang-tools-extra/clang-doc/tool/ClangDocMain.cpp
index ee4c449718871..bc30f61264174 100644
--- a/clang-tools-extra/clang-doc/tool/ClangDocMain.cpp
+++ b/clang-tools-extra/clang-doc/tool/ClangDocMain.cpp
@@ -128,7 +128,7 @@ static llvm::cl::opt<OutputFormatTy>
 
 static llvm::ExitOnError ExitOnErr;
 
-static std::string getFormatString() {
+static llvm::StringRef getFormatString() {
   switch (FormatEnum) {
   case OutputFormatTy::yaml:
     return "yaml";
@@ -263,7 +263,7 @@ Example usage for a project using a compile commands database:
     llvm::TimeTraceScope("main");
 
     // Fail early if an invalid format was provided.
-    std::string Format = getFormatString();
+    llvm::StringRef Format = getFormatString();
     llvm::outs() << "Emiting docs in " << Format << " format.\n";
     auto G = ExitOnErr(doc::findGeneratorByName(Format));
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/180332