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//
//  ANTLRRuleMapElement.m
//  ANTLR
//
//  Created by Alan Condit on 6/16/10.
// [The "BSD licence"]
// Copyright (c) 2010 Alan Condit
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. The name of the author may not be used to endorse or promote products
//    derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#import "ANTLRRuleMapElement.h"


@implementation ANTLRRuleMapElement

@synthesize ruleNum;

+ (ANTLRRuleMapElement *)newANTLRRuleMapElement
{
    return [[ANTLRRuleMapElement alloc] init];
}

+ (ANTLRRuleMapElement *)newANTLRRuleMapElementWithIndex:(NSNumber *)aNumber
{
    return [[ANTLRRuleMapElement alloc] initWithAnIndex:(NSNumber *)aNumber];
}

+ (ANTLRRuleMapElement *)newANTLRRuleMapElementWithIndex:(NSNumber *)aNumber RuleNum:(NSNumber *)aRuleNum
{
    return [[ANTLRRuleMapElement alloc] initWithAnIndex:aNumber RuleNum:aRuleNum];
}

- (id) init
{
    if ((self = [super init]) != nil ) {
        index = nil;
        ruleNum = nil;
    }
    return (self);
}

- (id) initWithAnIndex:(NSNumber *)aNumber
{
    if ((self = [super initWithAnIndex:aNumber]) != nil ) {
        ruleNum = nil;
    }
    return (self);
}

- (id) initWithAnIndex:(NSNumber *)aNumber RuleNum:(NSNumber *)aRuleNum
{
    if ((self = [super initWithAnIndex:aNumber]) != nil ) {
        [aRuleNum retain];
        ruleNum = aRuleNum;
    }
    return (self);
}

- (id) copyWithZone:(NSZone *)aZone
{
    ANTLRRuleMapElement *copy;
    
    copy = [super copyWithZone:aZone];
    copy.ruleNum = ruleNum;
    return( copy );
}

- (id)getRuleNum
{
    return ruleNum;
}

- (void)setRuleNum:(id)aRuleNum
{
    if ( aRuleNum != ruleNum ) {
        if ( ruleNum ) [ruleNum release];
        [aRuleNum retain];
    }
    ruleNum = aRuleNum;
}

- (NSInteger)size
{
    NSInteger aSize = 0;
    if (ruleNum != nil) aSize++;
    if (index != nil) aSize++;
    return( aSize );
}

@end