Use StringRef::contains().

llvm-svn: 308526

Author: rui314

lld/COFF/Driver.cpp

@@ -247,7 +247,7 @@ StringRef LinkerDriver::doFindFile(StringRef Filename) {
   bool HasPathSep = (Filename.find_first_of("/\\") != StringRef::npos);
   if (HasPathSep)
     return Filename;
-  bool HasExt = (Filename.find('.') != StringRef::npos);
+  bool HasExt = Filename.contains('.');
   for (StringRef Dir : SearchPaths) {
     SmallString<128> Path = Dir;
     sys::path::append(Path, Filename);
@@ -275,7 +275,7 @@ Optional<StringRef> LinkerDriver::findFile(StringRef Filename) {
 // Find library file from search path.
 StringRef LinkerDriver::doFindLib(StringRef Filename) {
   // Add ".lib" to Filename if that has no file extension.
-  bool HasExt = (Filename.find('.') != StringRef::npos);
+  bool HasExt = Filename.contains('.');
   if (!HasExt)
     Filename = Saver.save(Filename + ".lib");
   return doFindFile(Filename);

lld/COFF/DriverUtils.cpp

@@ -459,12 +459,12 @@ Export parseExport(StringRef Arg) {
   if (E.Name.empty())
     goto err;
 
-  if (E.Name.find('=') != StringRef::npos) {
+  if (E.Name.contains('=')) {
     StringRef X, Y;
     std::tie(X, Y) = E.Name.split("=");
 
     // If "<name>=<dllname>.<name>".
-    if (Y.find(".") != StringRef::npos) {
+    if (Y.contains(".")) {
       E.Name = X;
       E.ForwardTo = Y;
       return E;

lld/ELF/Error.cpp

@@ -41,7 +41,7 @@ static void newline(const Twine &Msg) {
 
   if (Flag)
     *ErrorOS << "\n";
-  Flag = (StringRef(Msg.str()).find('\n') != StringRef::npos);
+  Flag = StringRef(Msg.str()).contains('\n');
 }
 
 static void print(StringRef S, raw_ostream::Colors C) {

lld/ELF/SymbolTable.cpp

@@ -325,11 +325,9 @@ Symbol *SymbolTable<ELFT>::addUndefined(StringRef Name, bool IsLocal,
 // .symver foo,foo@@@VER
 // we can delete this hack.
 static int compareVersion(Symbol *S, StringRef Name) {
-  if (Name.find("@@") != StringRef::npos &&
-      S->body()->getName().find("@@") == StringRef::npos)
+  if (Name.contains("@@") && !S->body()->getName().contains("@@"))
     return 1;
-  if (Name.find("@@") == StringRef::npos &&
-      S->body()->getName().find("@@") != StringRef::npos)
+  if (!Name.contains("@@") && S->body()->getName().contains("@@"))
     return -1;
   return 0;
 }
@@ -720,7 +718,7 @@ void SymbolTable<ELFT>::assignExactVersion(SymbolVersion Ver,
     // Skip symbols containing version info because symbol versions
     // specified by symbol names take precedence over version scripts.
     // See parseSymbolVersion().
-    if (B->getName().find('@') != StringRef::npos)
+    if (B->getName().contains('@'))
       continue;
 
     Symbol *Sym = B->symbol();

lld/lib/Core/Reproduce.cpp

@@ -44,9 +44,9 @@ std::string lld::relativeToRoot(StringRef Path) {
 
 // Quote a given string if it contains a space character.
 std::string lld::quote(StringRef S) {
-  if (S.find(' ') == StringRef::npos)
-    return S;
-  return ("\"" + S + "\"").str();
+  if (S.contains(' '))
+    return ("\"" + S + "\"").str();
+  return S;
 }
 
 std::string lld::rewritePath(StringRef S) {