ANTLRTreeRuleReturnScope.m revision 324c4644fee44b9898524c09511bd33c3f12e2df 
1//
2//  ANTLRTreeRuleReturnScope.m
3//  ANTLR
4//
5//  Created by Alan Condit on 6/17/10.
6// [The "BSD licence"]
7// Copyright (c) 2010 Alan Condit
8// All rights reserved.
9//
10// Redistribution and use in source and binary forms, with or without
11// modification, are permitted provided that the following conditions
12// are met:
13// 1. Redistributions of source code must retain the above copyright
14//    notice, this list of conditions and the following disclaimer.
15// 2. Redistributions in binary form must reproduce the above copyright
16//    notice, this list of conditions and the following disclaimer in the
17//    documentation and/or other materials provided with the distribution.
18// 3. The name of the author may not be used to endorse or promote products
19//    derived from this software without specific prior written permission.
20//
21// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32#import "ANTLRTreeRuleReturnScope.h"
33
34
35@implementation ANTLRTreeRuleReturnScope
36@synthesize start;
37
38+ (id) newReturnScope
39{
40    return [[ANTLRTreeRuleReturnScope alloc] init];
41}
42
43- (id) init
44{
45    self = [super init];
46    return self;
47}
48
49- (void) dealloc
50{
51#ifdef DEBUG_DEALLOC
52    NSLog( @"called dealloc in ANTLRTreeRuleReturnScope" );
53#endif
54	if ( start ) [start release];
55	[super dealloc];
56}
57
58- (ANTLRCommonTree *)getStart
59{
60    return start;
61}	
62
63- (void)setStart:(ANTLRCommonTree *)aStart
64{
65    if ( start != aStart ) {
66        if ( start ) [start release];
67        [aStart retain];
68    }
69    start = aStart;
70}	
71
72// create a copy, including the text if available
73// the input stream is *not* copied!
74- (id) copyWithZone:(NSZone *)theZone
75{
76    ANTLRTreeRuleReturnScope *copy = [super copyWithZone:theZone];
77    copy.start = start;
78    return copy;
79}
80
81@end
82