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//
// ANTLRTreeVisitorAction.h
// ANTLR
//
// Created by Alan Condit on 6/18/10.
// [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 <Cocoa/Cocoa.h>
@interface ANTLRTreeVisitorAction : NSObject
{
}
+ (ANTLRTreeVisitorAction *)newANTLRTreeVisitorAction;
- (id) init;
/** Execute an action before visiting children of t. Return t or
* a rewritten t. It is up to the visitor to decide what to do
* with the return value. Children of returned value will be
* visited if using TreeVisitor.visit().
*/
- (ANTLRTreeVisitorAction *)pre:(ANTLRTreeVisitorAction *) t;
/** Execute an action after visiting children of t. Return t or
* a rewritten t. It is up to the visitor to decide what to do
* with the return value.
*/
- (ANTLRTreeVisitorAction *)post:(ANTLRTreeVisitorAction *) t;
@end
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