Lines Matching refs:nil

46     if ((self = [super init]) != nil) {
59     if ((self = [super init]) != nil) {
92         return nil; // extra junk on end
94     return nil;
104     if ( root==nil ) {
105         return nil;
118             if ( child == nil ) {
119                 return nil;
134     NSString *label = nil;
139             return nil;
144             return nil;
154         if ( label != nil ) {
162         return nil;
166     if ( [tokenName isEqualToString:@"nil"] ) {
171     NSString *arg = nil;
181         return nil;
184     if ( label!=nil && [node class] == [TreePattern class] ) {
187     if ( arg!=nil && [node class] == [TreePattern class] ) {