/**
* Copyright (c) 2005-2012 by Appcelerator, Inc. All Rights Reserved.
* Licensed under the terms of the Eclipse Public License (EPL).
* Please see the license.txt included with this distribution for details.
* Any modifications to this file must keep this entire header intact.
*/
/*
* Created on Jun 10, 2006
* @author Fabio
*/
package org.python.pydev.parser.visitors.scope;
import java.util.ArrayList;
/**
* The ASTEntries in this visitor should know about which context (parent) they're in.
*
* The definition of what's a context (e.g.: should an if generate a new context or only a class/method?)
* is up to the actual visitor.
*
* @author Fabio
*/
public abstract class EasyASTIteratorWithChildrenVisitor extends EasyAstIteratorBase {
/**
* Overridden because we deal only with the nodes with children in this iterator
*
* @see org.python.pydev.parser.visitors.scope.EasyAstIteratorBase#createEntry()
*/
@Override
protected ASTEntry createEntry() {
ASTEntry entry;
if (parents.size() > 0) {
entry = new ASTEntryWithChildren((ASTEntryWithChildren) parents.peek());
} else {
entry = new ASTEntryWithChildren(null);
}
return entry;
}
/**
* This implementation only adds it to the flattened list (nodes) if there is no parent.
* Otherwise (if there is a parent), this implementation will add it to the parents children.
*
* @see org.python.pydev.parser.visitors.scope.EasyAstIteratorBase#doAddNode(org.python.pydev.parser.visitors.scope.ASTEntry)
*/
@Override
protected void doAddNode(ASTEntry entry) {
if (entry.parent == null) {
super.doAddNode(entry);
} else {
ASTEntryWithChildren parent = (ASTEntryWithChildren) entry.parent;
if (parent.children == null) {
parent.children = new ArrayList<ASTEntryWithChildren>();
}
parent.children.add((ASTEntryWithChildren) entry);
}
}
}