| /* |
| [The "BSD licence"] |
| Copyright (c) 2005-2006 Terence Parr |
| 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. |
| */ |
| package org.antlr.runtime.tree { |
| |
| import org.antlr.runtime.RuleReturnScope; |
| |
| /** This is identical to the ParserRuleReturnScope except that |
| * the start property is a tree nodes not Token object |
| * when you are parsing trees. To be generic the tree node types |
| * have to be Object. |
| */ |
| public class TreeRuleReturnScope extends RuleReturnScope { |
| |
| /** First node or root node of tree matched for this rule. */ |
| protected var _start:Object; |
| private var _tree:Object; // if output=AST this contains the tree |
| private var _values:Object = new Object(); // contains the return values |
| |
| /** Has a value potentially if output=AST; */ |
| public override function get tree():Object { |
| return _tree; |
| } |
| |
| public function set tree(tree:Object):void { |
| _tree = tree; |
| } |
| |
| public function get values():Object { |
| return _values; |
| } |
| |
| public override function get start():Object { |
| return _start; |
| } |
| |
| public function set start(value:Object):void { |
| _start = value; |
| } |
| |
| } |
| } |