If I have a class, how can I list all its instance variable names?
eg:
@interface MyClass : NSObject {
int myInt;
NSString* myString;
NSMutableArray* myArray;
}
I would like to get "myInt", "myString", and "myArray". Is there some way to perhaps get an array of names that I can iterate over?
I've tried searching the Objective-C documentation but couldn't find anything (and I'm not sure what this is called either).
As mentioned, you can use the Objective-C runtime API to retrieve the instance variable names:
unsigned int varCount;
Ivar *vars = class_copyIvarList([MyClass class], &varCount);
for (int i = 0; i < varCount; i++) {
Ivar var = vars[i];
const char* name = ivar_getName(var);
const char* typeEncoding = ivar_getTypeEncoding(var);
// do what you wish with the name and type here
}
free(vars);