add ID as a special acronym to objc property declaration check for property names like bundleID.allow using acronyms as suffix.

[hokein]

clang-tools-extra/trunk/clang-tidy/objc/PropertyDeclarationCheck.cpp

45

We also need to update the doc of the check.

clang-tools-extra/trunk/clang-tidy/objc/PropertyDeclarationCheck.cpp

constexpr char DefaultSpecialAcronyms[] =
     "JPG;"
     "PNG;"
     "GIF;"
     "LZW;"
     "ROM;"
     "RGB;"
     "CMYK;"
     "MIDI;"
-    "FTP";
+    "FTP;"
+    "ID";
 
 /// For now we will only fix 'CamelCase' property to
 /// 'camelCase'. For other cases the users need to
 /// come up with a proper name by their own.
 /// FIXME: provide fix for snake_case to snakeCase
 FixItHint generateFixItHint(const ObjCPropertyDecl *Decl) {
   if (isupper(Decl->getName()[0])) {
     auto NewName = Decl->getName().str();
     NewName[0] = tolower(NewName[0]);
     return FixItHint::CreateReplacement(
         CharSourceRange::getTokenRange(SourceRange(Decl->getLocation())),
         llvm::StringRef(NewName));
   }
   return FixItHint();
 }
 
-std::string validPropertyNameRegex(const std::vector<std::string> &Prefixes) {
-  std::vector<std::string> EscapedPrefixes;
-  EscapedPrefixes.reserve(Prefixes.size());
+std::string validPropertyNameRegex(const std::vector<std::string> &Acronyms) {
+  std::vector<std::string> EscapedAcronyms;
+  EscapedAcronyms.reserve(Acronyms.size());
   // In case someone defines a custom prefix which includes a regex
   // special character, escape all the prefixes.
-  std::transform(Prefixes.begin(), Prefixes.end(),
-                 std::back_inserter(EscapedPrefixes), [](const std::string& s) {
+  std::transform(Acronyms.begin(), Acronyms.end(),
+                 std::back_inserter(EscapedAcronyms), [](const std::string& s) {
                    return llvm::Regex::escape(s); });
   // Allow any of these names:
   // foo
   // fooBar
   // url
   // urlString
   // URL
   // URLString
+  // bundleID
   return std::string("::((") +
-      llvm::join(EscapedPrefixes.begin(), EscapedPrefixes.end(), "|") +
-      ")[A-Z]?)?[a-z]+[a-z0-9]*([A-Z][a-z0-9]+)*$";
+      llvm::join(EscapedAcronyms.begin(), EscapedAcronyms.end(), "|") +
+      ")[A-Z]?)?[a-z]+[a-z0-9]*([A-Z][a-z0-9]+)*" + "(" +
+      llvm::join(EscapedAcronyms.begin(), EscapedAcronyms.end(), "|") + ")?$";
 }
 }  // namespace
 
 PropertyDeclarationCheck::PropertyDeclarationCheck(StringRef Name,
                                                    ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),
       SpecialAcronyms(utils::options::parseStringList(
           Options.get("Acronyms", DefaultSpecialAcronyms))) {}

clang-tools-extra/trunk/test/clang-tidy/objc-property-declaration.m

 // RUN: %check_clang_tidy %s objc-property-declaration %t
 @class NSString;
 
 @interface Foo
 @property(assign, nonatomic) int NotCamelCase;
 // CHECK-MESSAGES: :[[@LINE-1]]:34: warning: property name 'NotCamelCase' should use lowerCamelCase style, according to the Apple Coding Guidelines [objc-property-declaration]
 // CHECK-FIXES: @property(assign, nonatomic) int notCamelCase;
 @property(assign, nonatomic) int camelCase;
 @property(strong, nonatomic) NSString *URLString;
+@property(strong, nonatomic) NSString *bundleID;
 @property(strong, nonatomic) NSString *URL_string;
 // CHECK-MESSAGES: :[[@LINE-1]]:40: warning: property name 'URL_string' should use lowerCamelCase style, according to the Apple Coding Guidelines [objc-property-declaration]
 @end