| // |
| // ANTLRStreamEnumertor.m |
| // ANTLR |
| // |
| // Created by Ian Michell on 29/04/2010. |
| // [The "BSD licence"] |
| // Copyright (c) 2010 Ian Michell 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 "ANTLRStreamEnumerator.h" |
| |
| |
| @implementation ANTLRStreamEnumerator |
| |
| -(id) init |
| { |
| self = [super init]; |
| if (self) |
| { |
| i = 0; |
| } |
| return self; |
| } |
| |
| -(id) initWithNodes:(AMutableArray *) n andEOF:(id) obj |
| { |
| self = [self init]; |
| if (self) |
| { |
| nodes = n; |
| eof = obj; |
| } |
| return self; |
| } |
| |
| -(BOOL) hasNext |
| { |
| return i < [nodes count]; |
| } |
| |
| -(id) nextObject |
| { |
| NSUInteger current = i; |
| i++; |
| if (current < [nodes count]) |
| { |
| return [nodes objectAtIndex:current]; |
| } |
| return eof; |
| } |
| |
| @synthesize i; |
| @synthesize eof; |
| @synthesize nodes; |
| @end |
