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BioJava bytecode module

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/*
 *                    BioJava development code
 *
 * This code may be freely distributed and modified under the
 * terms of the GNU Lesser General Public Licence.  This should
 * be distributed with the code.  If you do not have a copy,
 * see:
 *
 *      http://www.gnu.org/copyleft/lesser.html
 *
 * Copyright for this code is held jointly by the individual
 * authors.  These should be listed in @author doc comments.
 *
 * For more information on the BioJava project and its aims,
 * or to join the biojava-l mailing list, visit the home page
 * at:
 *
 *      http://www.biojava.org/
 *
 */
package org.biojava.utils.bytecode;

/**
 * Encapsulate a refererence to a Label which has not been resolved.
 *
 * @author Thomas Down
 */

class BranchFixup implements OutstandingReference {
    private final Label label;
    private final int branchSource;
    private final ParentContext cc;

    public BranchFixup(Label l, int bs, ParentContext cc) {
	this.label = l;
	this.branchSource = bs;
	this.cc = cc;
    }

    public Label getLabel() {
	return label;
    }

    public void resolve(int offset) throws CodeException {
	cc.writeShortAt(branchSource, offset - branchSource + 1);
    }
}