Question

I have pch-file with this code:

#import "ServerModel.h"

enum {
    SAVE = 1,
    REMOVE = 2,
    REMOVE_ALL = 3
};
typedef NSInteger RequestType;

and I’m trying to use RequestType in ServerModel.h but compiler doesn’t know nothing about my enum. I tried to create header file for my enums and import this file in pch-file but nothing have changed.

So basic problem is: I can’t use enums from .pch file in files, that are #imported in this pch-file.

Is there some way to handle this problem? And is pch-file good place to put enums there?

UPD:

I tried to put all this enums in one header file and #import this file in the end of all #imports in pch-file and it doesn’t work.
But then I put

#import "Enums.h" // my file with enums

in the beginning of pch-file, before all other #imports and it’s working.

I will be glad if somebody will explain the difference in the placement of #import before or after some other #import.

UPD2:

I’ll try to make it more clearly:

I have Enums.h with enum:

enum {
    SAVE = 1,
    REMOVE = 2,
    REMOVE_ALL = 3
};
typedef NSInteger RequestType;

MyProject-Prefix.pch with:

#import "ServerModel.h"
#import "Enum.h"

and ServerModel.h with following code:

- (void)unlinkAccountWithRequestType:(RequestType)requestType;

I’m getting an error: Expected a type on this method. I’ve cleaned my project and getting same error.

When I’m switching #imports like this:

#import "Enums.h"
#import "ServerModel.h"

Everything is good

Answer 1

Case1 : If you import like this

#import "ServerModel.h"
#import "Enums.h"

Then compiler will check ServerModel.h file before Enums.h when it encounters #import "ServerModel.h" statement. And while checking you ServerModel.h it finds a token RequestType and says WTF is RequestType?? and throws error on your face.

Case 2: If you write this

#import "Enums.h"
#import "ServerModel.h"

Then compiler compiles Enums.h successfully and then compiles ServerModel.h and again it finds a token RequestType and says yeah I know this is a typedef of NSInteger which is defined in Enums.h. And finally it moves on happily.