Re: [Pyobjc-dev] Why syntax?

[Bob S. <bob...@ma...>]

>> From: Andrew Zeldis <ae...@ma...>
>> 
>>> A secondary problem is that key/value arguments are not ordered.
>> 
>> Also, I didn't realize ObjC methods were ordered...  Does this mean
>> then that it's wrong to think of them as key/value or named parameters,
>> but as a single method name where variables are "interpolated"?
>> 

Yes. There is a single method name, not key/value pairs.

>> Is there a possibility of more than one selector containing the same
>> "keys" in a different order?
>> 

Yes.

result (test program follows):

Apr 12 20:52:32 testTool[583] cat bat hat
Apr 12 20:52:32 testTool[583] cat hat bat

testTool has exited with status 0.

--test program--

//  testthing.h

#import <Foundation/Foundation.h>

@interface testthing : NSObject { }
- (void) testBy: (NSString *)who wearing:(NSString *)with weilding:(NSString
*)what;
- (void) testBy: (NSString *)who weilding:(NSString *)what wearing:(NSString
*)with;
@end

//  testthing.m

#import "testthing.h"

@implementation testthing
- (void) testBy: (NSString *)who wearing:(NSString *)with weilding:(NSString
*)what {
    NSLog([who stringByAppendingFormat:@" %@ %@", with, what]);
}
- (void) testBy: (NSString *)who weilding:(NSString *)what wearing:(NSString
*)with {
    NSLog([who stringByAppendingFormat:@" %@ %@", what, with]);
}
@end


// main.m

#import <Foundation/Foundation.h>
#import "testthing.h"

int main (int argc, const char * argv[])
{
    testthing *tthing;
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    tthing = [[[testthing alloc] init] retain];
    [tthing testBy: @"cat" weilding:@"bat" wearing:@"hat"];
    [tthing testBy: @"cat" wearing:@"hat" weilding:@"bat"];
    [pool release];
    return 0;
}