118 lines
3.6 KiB
Java
118 lines
3.6 KiB
Java
/*******************************************************************************
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* 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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* This file is a derivative of code released by the University of
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* California under the terms listed below.
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*
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* Refinement Analysis Tools is Copyright (c) 2007 The Regents of the
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* University of California (Regents). Provided that this notice and
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* the following two paragraphs are included in any distribution of
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* Refinement Analysis Tools or its derivative work, Regents agrees
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* not to assert any of Regents' copyright rights in Refinement
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* Analysis Tools against recipient for recipient's reproduction,
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* preparation of derivative works, public display, public
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* performance, distribution or sublicensing of Refinement Analysis
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* Tools and derivative works, in source code and object code form.
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* This agreement not to assert does not confer, by implication,
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* estoppel, or otherwise any license or rights in any intellectual
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* property of Regents, including, but not limited to, any patents
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* of Regents or Regents' employees.
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*
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* IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT,
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* INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
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* INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE
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* AND ITS DOCUMENTATION, EVEN IF REGENTS HAS BEEN ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE AND FURTHER DISCLAIMS ANY STATUTORY
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* WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE AND ACCOMPANYING
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* DOCUMENTATION, IF ANY, PROVIDED HEREUNDER IS PROVIDED "AS
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* IS". REGENTS HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
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* UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*/
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package com.ibm.wala.demandpa.flowgraph;
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import com.ibm.wala.classLoader.IField;
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/**
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* @author Manu Sridharan
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*
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*/
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public class GetFieldBarLabel implements IFlowLabel {
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private final IField field;
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private GetFieldBarLabel(final IField field) {
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this.field = field;
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}
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public static GetFieldBarLabel make(IField field) {
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// TODO cache these?
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return new GetFieldBarLabel(field);
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}
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public IField getField() {
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return field;
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}
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/*
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* (non-Javadoc)
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*
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* @see demandGraph.IFlowLabel#bar()
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*/
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@Override
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public GetFieldLabel bar() {
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return GetFieldLabel.make(field);
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}
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/*
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* (non-Javadoc)
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*
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* @see demandGraph.IFlowLabel#visit(demandGraph.IFlowLabel.IFlowLabelVisitor,
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* java.lang.Object)
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*/
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@Override
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public void visit(IFlowLabelVisitor v, Object dst) throws IllegalArgumentException {
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if (v == null) {
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throw new IllegalArgumentException("v == null");
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}
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v.visitGetFieldBar(this, dst);
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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 + ((field == null) ? 0 : field.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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final GetFieldBarLabel other = (GetFieldBarLabel) obj;
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if (field == null) {
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if (other.field != null)
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return false;
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} else if (!field.equals(other.field))
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return false;
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return true;
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}
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@Override
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public boolean isBarred() {
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return true;
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}
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}
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