xref: /aosp_15_r20/external/antlr/runtime/ObjC/Framework/NodeMapElement.m (revision 16467b971bd3e2009fad32dd79016f2c7e421deb)
1*16467b97STreehugger Robot//
2*16467b97STreehugger Robot//  NodeMapElement.m
3*16467b97STreehugger Robot//  ANTLR
4*16467b97STreehugger Robot//
5*16467b97STreehugger Robot//  Created by Alan Condit on 6/16/10.
6*16467b97STreehugger Robot// [The "BSD licence"]
7*16467b97STreehugger Robot// Copyright (c) 2010 Alan Condit
8*16467b97STreehugger Robot// All rights reserved.
9*16467b97STreehugger Robot//
10*16467b97STreehugger Robot// Redistribution and use in source and binary forms, with or without
11*16467b97STreehugger Robot// modification, are permitted provided that the following conditions
12*16467b97STreehugger Robot// are met:
13*16467b97STreehugger Robot// 1. Redistributions of source code must retain the above copyright
14*16467b97STreehugger Robot//    notice, this list of conditions and the following disclaimer.
15*16467b97STreehugger Robot// 2. Redistributions in binary form must reproduce the above copyright
16*16467b97STreehugger Robot//    notice, this list of conditions and the following disclaimer in the
17*16467b97STreehugger Robot//    documentation and/or other materials provided with the distribution.
18*16467b97STreehugger Robot// 3. The name of the author may not be used to endorse or promote products
19*16467b97STreehugger Robot//    derived from this software without specific prior written permission.
20*16467b97STreehugger Robot//
21*16467b97STreehugger Robot// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22*16467b97STreehugger Robot// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23*16467b97STreehugger Robot// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24*16467b97STreehugger Robot// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25*16467b97STreehugger Robot// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26*16467b97STreehugger Robot// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27*16467b97STreehugger Robot// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28*16467b97STreehugger Robot// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29*16467b97STreehugger Robot// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30*16467b97STreehugger Robot// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31*16467b97STreehugger Robot
32*16467b97STreehugger Robot#import "NodeMapElement.h"
33*16467b97STreehugger Robot
34*16467b97STreehugger Robotstatic NSInteger _aUniqueID;
35*16467b97STreehugger Robot
36*16467b97STreehugger Robot@implementation NodeMapElement
37*16467b97STreehugger Robot
38*16467b97STreehugger Robot@synthesize node;
39*16467b97STreehugger Robot
40*16467b97STreehugger Robot+ (void)initialize
41*16467b97STreehugger Robot{
42*16467b97STreehugger Robot    _aUniqueID = 0;
43*16467b97STreehugger Robot}
44*16467b97STreehugger Robot
45*16467b97STreehugger Robot+ (NodeMapElement *)newNodeMapElement
46*16467b97STreehugger Robot{
47*16467b97STreehugger Robot    return [[NodeMapElement alloc] init];
48*16467b97STreehugger Robot}
49*16467b97STreehugger Robot
50*16467b97STreehugger Robot+ (NodeMapElement *)newNodeMapElementWithIndex:(id)anIndex Node:(id<BaseTree>)aNode
51*16467b97STreehugger Robot{
52*16467b97STreehugger Robot    return [[NodeMapElement alloc] initWithAnIndex:anIndex Node:aNode];
53*16467b97STreehugger Robot}
54*16467b97STreehugger Robot
55*16467b97STreehugger Robot- (id) init
56*16467b97STreehugger Robot{
57*16467b97STreehugger Robot    if ((self = [super init]) != nil ) {
58*16467b97STreehugger Robot        index = nil;
59*16467b97STreehugger Robot        node = nil;
60*16467b97STreehugger Robot    }
61*16467b97STreehugger Robot    return (self);
62*16467b97STreehugger Robot}
63*16467b97STreehugger Robot
64*16467b97STreehugger Robot- (id) initWithAnIndex:(id)anIndex Node:(id)aNode
65*16467b97STreehugger Robot{
66*16467b97STreehugger Robot    self = [super initWithAnIndex:anIndex];
67*16467b97STreehugger Robot    if ( self ) {
68*16467b97STreehugger Robot        if ( aNode != node ) {
69*16467b97STreehugger Robot            if ( node ) [node release];
70*16467b97STreehugger Robot            [aNode retain];
71*16467b97STreehugger Robot        }
72*16467b97STreehugger Robot        node = aNode;
73*16467b97STreehugger Robot    }
74*16467b97STreehugger Robot    return (self);
75*16467b97STreehugger Robot}
76*16467b97STreehugger Robot
77*16467b97STreehugger Robot- (id) copyWithZone:(NSZone *)aZone
78*16467b97STreehugger Robot{
79*16467b97STreehugger Robot    NodeMapElement *copy;
80*16467b97STreehugger Robot
81*16467b97STreehugger Robot    copy = [super copyWithZone:aZone];
82*16467b97STreehugger Robot    copy.node = node;
83*16467b97STreehugger Robot    return( copy );
84*16467b97STreehugger Robot}
85*16467b97STreehugger Robot
86*16467b97STreehugger Robot- (id<BaseTree>)getNode
87*16467b97STreehugger Robot{
88*16467b97STreehugger Robot    return node;
89*16467b97STreehugger Robot}
90*16467b97STreehugger Robot
91*16467b97STreehugger Robot- (void)setNode:(id<BaseTree>)aNode
92*16467b97STreehugger Robot{
93*16467b97STreehugger Robot    if ( aNode != node ) {
94*16467b97STreehugger Robot        if ( node ) [node release];
95*16467b97STreehugger Robot        [aNode retain];
96*16467b97STreehugger Robot    }
97*16467b97STreehugger Robot    node = aNode;
98*16467b97STreehugger Robot}
99*16467b97STreehugger Robot
100*16467b97STreehugger Robot- (NSInteger)size
101*16467b97STreehugger Robot{
102*16467b97STreehugger Robot    NSInteger aSize = 0;
103*16467b97STreehugger Robot    if (node != nil) aSize += sizeof(id);
104*16467b97STreehugger Robot    if (index != nil) aSize += sizeof(id);
105*16467b97STreehugger Robot    return( aSize );
106*16467b97STreehugger Robot}
107*16467b97STreehugger Robot
108*16467b97STreehugger Robot@end
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