93 lines
2.3 KiB
Java
93 lines
2.3 KiB
Java
/******************************************************************************
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* Copyright (c) 2011 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*****************************************************************************/
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package com.ibm.wala.cast.js.ipa.callgraph.correlations.extraction;
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import com.ibm.wala.cast.tree.CAstNode;
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/**
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* A {@link NodePos} for a non-root node; includes information about the parent node, the child index, and
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* the position of the parent node.
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*
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* @author mschaefer
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*
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*/
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public class ChildPos extends NodePos {
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private CAstNode parent;
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private int index;
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private NodePos parent_pos;
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public ChildPos(CAstNode parent, int index, NodePos parent_pos) {
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this.parent = parent;
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this.index = index;
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this.parent_pos = parent_pos;
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}
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public CAstNode getParent() {
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return parent;
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}
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public int getIndex() {
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return index;
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}
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public NodePos getParentPos() {
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return parent_pos;
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}
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public CAstNode getChild() {
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return parent.getChild(index);
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}
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public ChildPos getChildPos(int index) {
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return new ChildPos(this.getChild(), index, this);
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}
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@Override
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public <A> A accept(PosSwitch<A> ps) {
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return ps.caseChildPos(this);
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}
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@Override
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public int hashCode() {
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final int prime = 31;
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int result = 1;
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result = prime * result + index;
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result = prime * result + ((parent == null) ? 0 : parent.hashCode());
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result = prime * result + ((parent_pos == null) ? 0 : parent_pos.hashCode());
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return result;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj)
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return true;
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if (obj == null)
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return false;
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if (getClass() != obj.getClass())
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return false;
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ChildPos other = (ChildPos) obj;
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if (index != other.index)
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return false;
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if (parent == null) {
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if (other.parent != null)
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return false;
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} else if (!parent.equals(other.parent))
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return false;
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if (parent_pos == null) {
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if (other.parent_pos != null)
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return false;
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} else if (!parent_pos.equals(other.parent_pos))
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return false;
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return true;
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}
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}
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