Use Objective-C without NSObject?
- by Alex I
I am testing some simple Objective-C code on Windows (cygwin, gcc). This code already works in Xcode on Mac. I would like to convert my objects to not subclass NSObject (or anything else, lol). Is this possible, and how?
What I have so far:
// MyObject.h
@interface MyObject
- (void)myMethod:(int) param;
@end
and
// MyObject.m
#include "MyObject.h"
@interface MyObject()
{ // this line is a syntax error, why?
int _field;
}
@end
@implementation MyObject
- (id)init {
// what goes in here?
return self;
}
- (void)myMethod:(int) param {
_field = param;
}
@end
What happens when I try compiling it:
gcc -o test MyObject.m -lobjc
MyObject.m:4:1: error: expected identifier or ‘(’ before ‘{’ token
MyObject.m: In function ‘-[MyObject myMethod:]’:
MyObject.m:17:3: error: ‘_field’ undeclared (first use in this function)
EDIT My compiler is cygwin's gcc, also has cygwin gcc-objc package:
gcc --version
gcc (GCC) 4.7.3
I have tried looking for this online and in a couple of Objective-C tutorials, but every example of a class I have found inherits from NSObject. Is it really impossible to write Objective-C without Cocoa or some kind of Cocoa replacement that provides NSObject?
(Yes, I know about GNUstep. I would really rather avoid that if possible...)
