| // |
| // ANTLRTreeException.m |
| // ANTLR |
| // |
| // Created by Kay Röpke on 24.10.2006. |
| // [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 "ANTLRTreeException.h" |
| |
| |
| @implementation ANTLRTreeException |
| |
| + (id) newException:(id<ANTLRBaseTree>)theOldRoot newRoot:(id<ANTLRBaseTree>)theNewRoot stream:(id<ANTLRIntStream>)aStream; |
| { |
| return [[ANTLRTreeException alloc] initWithOldRoot:theOldRoot newRoot:theNewRoot stream:aStream]; |
| } |
| |
| - (id) initWithOldRoot:(id<ANTLRBaseTree>)theOldRoot newRoot:(id<ANTLRBaseTree>)theNewRoot stream:(id<ANTLRIntStream>)aStream; |
| { |
| if ((self = [super initWithStream:aStream reason:@"The new root has more than one child. Cannot make it the root node."]) != nil ) { |
| [self setOldRoot:theOldRoot]; |
| [self setNewRoot:theNewRoot]; |
| } |
| return self; |
| } |
| |
| - (void) dealloc |
| { |
| #ifdef DEBUG_DEALLOC |
| NSLog( @"called dealloc in ANTLRTreeException" ); |
| #endif |
| [self setOldRoot:nil]; |
| [self setNewRoot:nil]; |
| [super dealloc]; |
| } |
| |
| - (void) setNewRoot:(id<ANTLRBaseTree>)aTree |
| { |
| if (newRoot != aTree) { |
| [aTree retain]; |
| if ( newRoot ) [newRoot release]; |
| newRoot = aTree; |
| } |
| } |
| |
| - (void) setOldRoot:(id<ANTLRBaseTree>)aTree |
| { |
| if (oldRoot != aTree) { |
| [aTree retain]; |
| if ( oldRoot ) [oldRoot release]; |
| oldRoot = aTree; |
| } |
| } |
| |
| - (NSString *) description |
| { |
| return [NSMutableString stringWithFormat:@"%@ old root: <%@> new root: <%@>", [super description], [oldRoot treeDescription], [newRoot treeDescription]]; |
| } |
| |
| @end |
