bla.m

//
// Speciaal voor Inferis

// YES nil N
//Met ifs 0.452217
//Met statement 0.430586
//#######################
//
//NO nil N
//Met ifs 0.451592
//Met statement 0.553710
//#######################
//
//YES iets N
//Met ifs 1.388737
//Met statement 1.790645
//#######################
//
//YES iets Bla
//Met ifs 2.469209
//Met statement 2.307097

#import "AppDelegate.h"

static inline BOOL IsEmpty(id thing) {
    if (thing == nil) return YES;
    if ([thing isEqual:[NSNull null]]) return YES;
    if ([thing respondsToSelector:@selector(count)]) return [thing performSelector:@selector(count)] == 0;
    if ([thing respondsToSelector:@selector(length)]) return [thing performSelector:@selector(length)] == 0;
    return NO;
}

@interface Inferis : NSObject {
    
}
- (BOOL)multipleIfs:(BOOL)isTextValue values:(NSArray *)values flag:(NSString *)flag;
- (BOOL)statement:(BOOL)isTextValue values:(NSArray *)values flag:(NSString *)flag;
@end

@implementation Inferis : NSObject

- (BOOL)multipleIfs:(BOOL)isTextValue values:(NSArray *)values flag:(NSString *)flag {
    if (!isTextValue && IsEmpty(values)) return YES;
    if ([flag isEqualToString:@"N"]) return NO;
    return YES;
}

- (BOOL)statement:(BOOL)isTextValue values:(NSArray *)values flag:(NSString *)flag {
    return ![flag isEqualToString:@"N"] || (!isTextValue && IsEmpty(values));
}
@end

@implementation AppDelegate

@synthesize window = _window;

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    Inferis *inf = [[Inferis alloc] init];
    NSDate *startingDate = nil;
    NSArray *values = [NSArray arrayWithObject:@"iets"];
    
    NSLog(@"YES nil N");
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf multipleIfs:YES values:nil flag:@"N"];
    }
	NSLog(@"Met ifs %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf statement:YES values:nil flag:@"N"];
    }
    NSLog(@"Met statement %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
    NSLog(@"#########################\n\n");
    
    NSLog(@"NO nil N");
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf multipleIfs:NO values:nil flag:@"N"];
    }
	NSLog(@"Met ifs %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf statement:NO values:nil flag:@"N"];
    }
    NSLog(@"Met statement %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
    NSLog(@"#########################\n\n");

    NSLog(@"YES iets N");
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf multipleIfs:YES values:values flag:@"N"];
    }
	NSLog(@"Met ifs %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf statement:YES values:values flag:@"N"];
    }
    NSLog(@"Met statement %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
    NSLog(@"#########################\n\n");

    NSLog(@"YES iets Bla");
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf multipleIfs:YES values:values flag:@"Bla"];
    }
	NSLog(@"Met ifs %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
    startingDate = [NSDate date];
    for (int i = 0; i < 10000000; i++) {
        [inf statement:YES values:values flag:@"Bla"];
    }
    NSLog(@"Met statement %f",[[NSDate date] timeIntervalSinceDate:startingDate]);
    
}



@end