[ADT] Rename SmallString::{starts,ends}with to {starts,ends}_with (#7…

…4916)

This patch renames {starts,ends}with to {starts,ends}_with for
consistency with std::{string,string_view}::{starts,ends}_with in
C++20.  Since there are only a handful of occurrences, this patch
skips the deprecation phase and simply renames them.

clang-tools-extra/clang-doc/Mapper.cpp

@@ -103,7 +103,7 @@ llvm::SmallString<128> MapASTVisitor::getFile(const NamedDecl *D,
                                   .getPresumedLoc(D->getBeginLoc())
                                   .getFilename());
   IsFileInRootDir = false;
-  if (RootDir.empty() || !File.startswith(RootDir))
+  if (RootDir.empty() || !File.starts_with(RootDir))
     return File;
   IsFileInRootDir = true;
   llvm::SmallString<128> Prefix(RootDir);

clang-tools-extra/modularize/ModuleAssistant.cpp

@@ -175,7 +175,7 @@ static bool addModuleDescription(Module *RootModule,
   llvm::SmallString<256> NativePath, NativePrefix;
   llvm::sys::path::native(HeaderFilePath, NativePath);
   llvm::sys::path::native(HeaderPrefix, NativePrefix);
-  if (NativePath.startswith(NativePrefix))
+  if (NativePath.starts_with(NativePrefix))
     FilePath = std::string(NativePath.substr(NativePrefix.size() + 1));
   else
     FilePath = std::string(HeaderFilePath);

clang/lib/AST/MicrosoftMangle.cpp

@@ -3809,14 +3809,14 @@ void MicrosoftMangleContextImpl::mangleCXXRTTICompleteObjectLocator(
   llvm::raw_svector_ostream Stream(VFTableMangling);
   mangleCXXVFTable(Derived, BasePath, Stream);
 
-  if (VFTableMangling.startswith("??@")) {
-    assert(VFTableMangling.endswith("@"));
+  if (VFTableMangling.starts_with("??@")) {
+    assert(VFTableMangling.ends_with("@"));
     Out << VFTableMangling << "??_R4@";
     return;
   }
 
-  assert(VFTableMangling.startswith("??_7") ||
-         VFTableMangling.startswith("??_S"));
+  assert(VFTableMangling.starts_with("??_7") ||
+         VFTableMangling.starts_with("??_S"));
 
   Out << "??_R4" << VFTableMangling.str().drop_front(4);
 }

clang/lib/Basic/Module.cpp

@@ -89,7 +89,7 @@ static bool isPlatformEnvironment(const TargetInfo &Target, StringRef Feature) {
   // where both are valid examples of the same platform+environment but in the
   // variant (2) the simulator is hardcoded as part of the platform name. Both
   // forms above should match for "iossimulator" requirement.
-  if (Target.getTriple().isOSDarwin() && PlatformEnv.endswith("simulator"))
+  if (Target.getTriple().isOSDarwin() && PlatformEnv.ends_with("simulator"))
     return PlatformEnv == Feature || CmpPlatformEnv(PlatformEnv, Feature);
 
   return PlatformEnv == Feature;

clang/lib/CrossTU/CrossTranslationUnit.cpp

@@ -551,7 +551,7 @@ CrossTranslationUnitContext::ASTLoader::load(StringRef Identifier) {
   // Normalize by removing relative path components.
   llvm::sys::path::remove_dots(Path, /*remove_dot_dot*/ true, PathStyle);
 
-  if (Path.endswith(".ast"))
+  if (Path.ends_with(".ast"))
     return loadFromDump(Path);
   else
     return loadFromSource(Path);

clang/lib/Driver/Driver.cpp

@@ -1522,7 +1522,7 @@ bool Driver::getCrashDiagnosticFile(StringRef ReproCrashFilename,
   // (or /Library/Logs/DiagnosticReports for root) and has the filename pattern
   // clang-<VERSION>_<YYYY-MM-DD-HHMMSS>_<hostname>.crash.
   path::home_directory(CrashDiagDir);
-  if (CrashDiagDir.startswith("/var/root"))
+  if (CrashDiagDir.starts_with("/var/root"))
     CrashDiagDir = "/";
   path::append(CrashDiagDir, "Library/Logs/DiagnosticReports");
   int PID =

clang/lib/Driver/ToolChains/Darwin.cpp

@@ -1281,7 +1281,7 @@ void MachO::AddLinkRuntimeLib(const ArgList &Args, ArgStringList &CmdArgs,
   // rpaths. This is currently true from this place, but we need to be
   // careful if this function is ever called before user's rpaths are emitted.
   if (Opts & RLO_AddRPath) {
-    assert(DarwinLibName.endswith(".dylib") && "must be a dynamic library");
+    assert(DarwinLibName.ends_with(".dylib") && "must be a dynamic library");
 
     // Add @executable_path to rpath to support having the dylib copied with
     // the executable.

clang/lib/Lex/ModuleMap.cpp

@@ -1864,7 +1864,7 @@ void ModuleMapParser::diagnosePrivateModules(SourceLocation ExplicitLoc,
       continue;
 
     SmallString<128> FullName(ActiveModule->getFullModuleName());
-    if (!FullName.startswith(M->Name) && !FullName.endswith("Private"))
+    if (!FullName.starts_with(M->Name) && !FullName.ends_with("Private"))
       continue;
     SmallString<128> FixedPrivModDecl;
     SmallString<128> Canonical(M->Name);

clang/lib/Sema/SemaCodeComplete.cpp

@@ -10112,7 +10112,7 @@ void Sema::CodeCompleteIncludedFile(llvm::StringRef Dir, bool Angled) {
     const StringRef &Dirname = llvm::sys::path::filename(Dir);
     const bool isQt = Dirname.startswith("Qt") || Dirname == "ActiveQt";
     const bool ExtensionlessHeaders =
-        IsSystem || isQt || Dir.endswith(".framework/Headers");
+        IsSystem || isQt || Dir.ends_with(".framework/Headers");
     std::error_code EC;
     unsigned Count = 0;
     for (auto It = FS.dir_begin(Dir, EC);

lld/COFF/PDB.cpp

@@ -268,7 +268,7 @@ void PDBLinker::pdbMakeAbsolute(SmallVectorImpl<char> &fileName) {
   // decide that it's a unix path if we're fairly certain.  Specifically, if
   // it starts with a forward slash.
   SmallString<128> absoluteFileName = ctx.config.pdbSourcePath;
-  sys::path::Style guessedStyle = absoluteFileName.startswith("/")
+  sys::path::Style guessedStyle = absoluteFileName.starts_with("/")
                                       ? sys::path::Style::posix
                                       : sys::path::Style::windows;
   sys::path::append(absoluteFileName, guessedStyle, fileName);

lld/MachO/InputFiles.cpp

@@ -1535,7 +1535,7 @@ std::string ObjFile::sourceFile() const {
   StringRef sep = sys::path::get_separator();
   // We don't use `path::append` here because we want an empty `dir` to result
   // in an absolute path. `append` would give us a relative path for that case.
-  if (!dir.endswith(sep))
+  if (!dir.ends_with(sep))
     dir += sep;
   return (dir + unitName).str();
 }

lldb/source/Commands/CommandCompletions.cpp

@@ -333,7 +333,7 @@ static void DiskFilesOrDirectories(const llvm::Twine &partial_name,
   llvm::StringRef SearchDir;
   llvm::StringRef PartialItem;
 
-  if (CompletionBuffer.startswith("~")) {
+  if (CompletionBuffer.starts_with("~")) {
     llvm::StringRef Buffer = CompletionBuffer;
     size_t FirstSep =
         Buffer.find_if([](char c) { return path::is_separator(c); });

llvm/include/llvm/ADT/SmallString.h

@@ -120,15 +120,11 @@ class SmallString : public SmallVector<char, InternalLen> {
   /// @name String Predicates
   /// @{
 
-  /// startswith - Check if this string starts with the given \p Prefix.
-  bool startswith(StringRef Prefix) const {
-    return str().startswith(Prefix);
-  }
+  /// starts_with - Check if this string starts with the given \p Prefix.
+  bool starts_with(StringRef Prefix) const { return str().starts_with(Prefix); }
 
-  /// endswith - Check if this string ends with the given \p Suffix.
-  bool endswith(StringRef Suffix) const {
-    return str().endswith(Suffix);
-  }
+  /// ends_with - Check if this string ends with the given \p Suffix.
+  bool ends_with(StringRef Suffix) const { return str().ends_with(Suffix); }
 
   /// @}
   /// @name String Searching

llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp

@@ -1048,7 +1048,7 @@ MCSection *TargetLoweringObjectFileELF::getSectionForMachineBasicBlock(
     } else {
       Name += FunctionSectionName;
       if (TM.getUniqueBasicBlockSectionNames()) {
-        if (!Name.endswith("."))
+        if (!Name.ends_with("."))
           Name += ".";
         Name += MBB.getSymbol()->getName();
       } else {

llvm/lib/Support/Windows/Path.inc

@@ -76,7 +76,7 @@ std::error_code widenPath(const Twine &Path8, SmallVectorImpl<wchar_t> &Path16,
 
   // If the path is a long path, mangled into forward slashes, normalize
   // back to backslashes here.
-  if (Path8Str.startswith("//?/"))
+  if (Path8Str.starts_with("//?/"))
     llvm::sys::path::native(Path8Str, path::Style::windows_backslash);
 
   if (std::error_code EC = UTF8ToUTF16(Path8Str, Path16))
@@ -96,7 +96,7 @@ std::error_code widenPath(const Twine &Path8, SmallVectorImpl<wchar_t> &Path16,
   const char *const LongPathPrefix = "\\\\?\\";
 
   if ((Path16.size() + CurPathLen) < MaxPathLen ||
-      Path8Str.startswith(LongPathPrefix))
+      Path8Str.starts_with(LongPathPrefix))
     return std::error_code();
 
   if (!IsAbsolute) {

llvm/tools/dsymutil/DebugMap.cpp

@@ -287,7 +287,7 @@ MappingTraits<dsymutil::DebugMapObject>::YamlDMO::denormalize(IO &IO) {
   }
 
   uint8_t Type = MachO::N_OSO;
-  if (Path.endswith(".dylib")) {
+  if (Path.ends_with(".dylib")) {
     // FIXME: find a more resilient way
     Type = MachO::N_LIB;
   }

llvm/tools/llvm-cov/CodeCoverage.cpp

@@ -502,7 +502,7 @@ void CodeCoverageTool::remapPathNames(const CoverageMapping &Coverage) {
       SmallString<128> NativeFilename;
       sys::path::native(Filename, NativeFilename);
       sys::path::remove_dots(NativeFilename, true);
-      if (NativeFilename.startswith(RemapFrom)) {
+      if (NativeFilename.starts_with(RemapFrom)) {
         RemappedFilenames[Filename] =
             RemapTo + NativeFilename.substr(RemapFrom.size()).str();
       }

llvm/tools/llvm-cov/CoverageReport.cpp

@@ -211,7 +211,7 @@ void CoverageReport::render(const FileCoverageSummary &File,
   sys::path::native(FileName);
 
   // remove_dots will remove trailing slash, so we need to check before it.
-  auto IsDir = FileName.endswith(sys::path::get_separator());
+  auto IsDir = FileName.ends_with(sys::path::get_separator());
   sys::path::remove_dots(FileName, /*remove_dot_dot=*/true);
   if (IsDir)
     FileName += sys::path::get_separator();

llvm/tools/llvm-cov/SourceCoverageViewHTML.cpp

@@ -639,7 +639,7 @@ struct CoveragePrinterHTMLDirectory::Reporter : public DirectoryCoverageReport {
     sys::path::native(LinkTextStr);
 
     // remove_dots will remove trailing slash, so we need to check before it.
-    auto IsDir = LinkTextStr.endswith(sys::path::get_separator());
+    auto IsDir = LinkTextStr.ends_with(sys::path::get_separator());
     sys::path::remove_dots(LinkTextStr, /*remove_dot_dot=*/true);
 
     SmallString<128> LinkTargetStr(LinkTextStr);

llvm/tools/llvm-ml/llvm-ml.cpp

@@ -83,7 +83,7 @@ static Triple GetTriple(StringRef ProgName, opt::InputArgList &Args) {
   StringRef DefaultBitness = "32";
   SmallString<255> Program = ProgName;
   sys::path::replace_extension(Program, "");
-  if (Program.endswith("ml64"))
+  if (Program.ends_with("ml64"))
     DefaultBitness = "64";
 
   StringRef TripleName =

llvm/unittests/Support/Path.cpp

@@ -882,7 +882,7 @@ TEST_F(FileSystemTest, TempFiles) {
   int FD2;
   SmallString<64> TempPath2;
   ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "temp", FD2, TempPath2));
-  ASSERT_TRUE(TempPath2.endswith(".temp"));
+  ASSERT_TRUE(TempPath2.ends_with(".temp"));
   ASSERT_NE(TempPath.str(), TempPath2.str());
 
   fs::file_status A, B;
@@ -908,7 +908,7 @@ TEST_F(FileSystemTest, TempFiles) {
 
   SmallString<64> TempPath3;
   ASSERT_NO_ERROR(fs::createTemporaryFile("prefix", "", TempPath3));
-  ASSERT_FALSE(TempPath3.endswith("."));
+  ASSERT_FALSE(TempPath3.ends_with("."));
   FileRemover Cleanup3(TempPath3);
 
   // Create a hard link to Temp1.
@@ -1515,13 +1515,13 @@ TEST(Support, NormalizePath) {
   const char *Path7a = "~/aaa";
   SmallString<64> Path7(Path7a);
   path::native(Path7, path::Style::windows_backslash);
-  EXPECT_TRUE(Path7.endswith("\\aaa"));
-  EXPECT_TRUE(Path7.startswith(PathHome));
+  EXPECT_TRUE(Path7.ends_with("\\aaa"));
+  EXPECT_TRUE(Path7.starts_with(PathHome));
   EXPECT_EQ(Path7.size(), PathHome.size() + strlen(Path7a + 1));
   Path7 = Path7a;
   path::native(Path7, path::Style::windows_slash);
-  EXPECT_TRUE(Path7.endswith("/aaa"));
-  EXPECT_TRUE(Path7.startswith(PathHome));
+  EXPECT_TRUE(Path7.ends_with("/aaa"));
+  EXPECT_TRUE(Path7.starts_with(PathHome));
   EXPECT_EQ(Path7.size(), PathHome.size() + strlen(Path7a + 1));
 
   const char *Path8a = "~";