// [The "BSD licence"]
// Copyright (c) 2006-2007 Kay Roepke 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 "ParserRuleReturnScope.h"


@implementation ParserRuleReturnScope

@synthesize start;
@synthesize stopToken;

- (void) dealloc
{
    [self setStart:nil];
    [self setStop:nil];
    [super dealloc];
}

- (id<Token>) getStart
{
    return start; 
}

- (void) setStart: (id<Token>) aStart
{
    if (start != aStart) {
        [aStart retain];
        if ( start ) [start release];
        start = aStart;
    }
}

- (id<Token>) getStop
{
    return stopToken; 
}

- (void) setStop: (id<Token>) aStop
{
    if (stopToken != aStop) {
        [aStop retain];
        if ( stopToken ) [stopToken release];
        stopToken = aStop;
    }
}

// create a copy, including the text if available
// the input stream is *not* copied!
- (id) copyWithZone:(NSZone *)theZone
{
    ParserRuleReturnScope *copy = [super copyWithZone:theZone];
    copy.start = start;
    copy.stopToken = stopToken;
    return copy;
}

@end