Error Cannot Declare Variable Inside @interface Or @protocol
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up ERROR: Cannot declare variable inside @interface or @protocol up vote 1 down vote favorite 1 I clicked Modernize Project and then I got some compile errors. (I Did take a snapshot) The error is: Cannot declare variable inside @interface or @protocol Here is the code in copy and paste format. #import
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Cannot declare variable inside @interface or @protocol : How to deal with up vote 0 down vote favorite A while ago, I developed an app with GCC compiler, now I upgrade to use http://stackoverflow.com/questions/11023879/error-cannot-declare-variable-inside-interface-or-protocol Apple LLVM compiler 4.2, and getting many errors of kind : Cannot declare variable inside @interface or @protocol Here is an example: @interface HomeController(PRIVATE) NSMutableArray *array; @end I know I cannot declare ivars in Categories, but if I change them to properties, it will not make sense, since some ivars are referencing extern classes. How you usually deal with these kind of issues? Thanx in advance. ios xcode4.5 llvm share|improve this question asked Apr 30 '13 at 14:17 Malloc http://stackoverflow.com/questions/16302141/cannot-declare-variable-inside-interface-or-protocol-how-to-deal-with 4,4572275151 No, Instance variables may not be placed in categories. –Malloc Apr 30 '13 at 14:22 add a comment| 2 Answers 2 active oldest votes up vote 3 down vote accepted If you want it to be "private" what I usually do is usually create an unnamed category and declare the ivars in there like this: @interface MyClass() { NSArray *myArray; } @end I'm not sure if its the named part of your category, or that you are missing the braces thats the problem, but this works for me share|improve this answer answered Apr 30 '13 at 14:21 Dan F 13.4k35293 1 Note: This goes within the .m. file at the top. –iWasRobbed Apr 30 '13 at 14:26 @iWasRobbed Yes, absolutely correct, I completely neglected to mention that –Dan F Apr 30 '13 at 14:27 Yes, it's category, I removed the private notation to shut that error, although I need them private. –Malloc Apr 30 '13 at 14:31 @malloc It remains "private" in that they are not exposed in the header, even if you don't declare the category as "private" –Dan F Apr 30 '13 at 14:32 Oh I see, nice info. Thanx. –Malloc Apr 30 '13 at 15:04 add a comment| up vote 1 down vote you can do this like that: @interface HomeController (){ NSMutableArray *array; } then these variables are private... share|improve
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers http://stackoverflow.com/questions/10366866/moving-code-from-xcode-3-to-4-produces-error-cannot-declare-variable-inside-in or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it http://sarudeki.jp/arudente/2012/09/26/apple-xcode-%E8%AD%A6%E5%91%8A%E3%81%A8%E3%82%A8%E3%83%A9%E3%83%BC%E3%81%BE%E3%81%A8%E3%82%81%E4%B8%80%E8%A6%A7/ only takes a minute: Sign up Moving code from Xcode 3 to 4 produces error: Cannot declare variable inside @interface or @protocol up vote 4 down vote favorite I am migrating my old iPhone apps from Xcode 3 to Xcode error cannot 4. I receive this error on code which used to build in Xcode 3 -- in fact I wrote it this way on purpose to hide implementation details from other modules. However, something seems to have changed in Objective-C. This code now receives the error Cannot declare variable inside @interface or @protocol. Remember, this is code at the top of the .m file not the .h @interface VisualViewController () BOOL doReloadPhoto; + (void)buildVisualEffectInfo; @property (nonatomic, retain) HandleCheckListSetting *checkListHandler; @end objective-c xcode4 error cannot declare compiler-errors instance-variables class-extensions share|improve this question edited Apr 28 '12 at 19:47 Josh Caswell 52.3k11103152 asked Apr 28 '12 at 19:35 halt00 13829 add a comment| 1 Answer 1 active oldest votes up vote 9 down vote This may have compiled before, but I don't think it was doing what you think it's doing. It sounds like you want to create a private ivar in a class extension. The syntax you have is just a top-level variable, though, equivalent to: BOOL doReloadPhoto; @interface VisualViewController () // etc. @end You need to put it inside curly braces for it to be an ivar: @interface VisualViewController () { BOOL doReloadPhoto; } (Conversely, I'm not sure that this -- ivar in extension -- was possible with Xcode 3's compiler, which is probably why you did it the way you did.) It sounds like the compiler is now (sensibly) pointing out that the code you have probably isn't doing what you expect, and forcing you to make your intention completely clear. It has also recenty become possible to declare private ivars in the @implementation block, using the same syntax: @implementation VisualViewController { BOOL doReloadPhoto; } share|improve this answer edited Apr 28 '12 at 19:51 answered Apr 28 '12 at 19:41 Josh Caswell 52.3k11103152 Whoa I had no idea you could do that in the implementation now. Way cool. –Jack Lawrence Apr 28 '12 at 19:42 2 @Jack: This is actual
apple Xcode 警告とエラーまとめ一覧 投稿日: 2012年9月26日 作成者: arudente Tweet incomplete implementation 実装されてないメソッド等がある Assigning to ‘id<***,***etc>'from incompatible type ‘〇〇 *const_strong" .hファイルの@interface 〇〇に<***,***>プロトコルを実装が必要。 unused variable ‘variable name' 変数の定義のみで、' 変数名 ‘ が使われていない。 Local declaration of ‘name' hides instance variable ‘name'が、クラス変数とメッソド引数で同時に使われています。重複しています。 "IBOutlet"attribute can only be applied to instance variables or properties ”IBOutlet”属性は、インスタンス変数かプロパティとしてだけ適用されます。@interface{}の中に入っていなかったい可能性がある。 property "***"requires method "set***"to be defined - use @synthesize, @dynamic or provide a method implementation プロパティの***の定義のために、”set***”メッソドが必要です。@synthesizeや@dynamicなどimplementation部分にメソッドを作って下さい。 "***" is deprecated ***は推奨されない記述方法です。iPhone Reference Libraryなどで"***"のサンプルコードを検索して確認してください。 Expression result unused 表現が結果的に使用されていません。必要ありません。 Property ‘***"retain(or strong)'attribute dose not match the property inherited from ‘MKAnnot…' プロパティ***とリテインもしくはストロング属性は、MKアノテーションから継承しているプロパティと一致しません。 Control reaches end of non-void function non - void 型関数は値を返す必要がある。 Unsupported Configuration: Plain Style unsupported in a Navigation Item ナビゲーションアイテムとしてサポートされていない。 Applications are expected to have a root view controller at the end of application launch - (void)viewDidLoadに記載