001    /*
002     *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003     *
004     *  This file is licensed to You under the Eclipse Public License (EPL);
005     *  You may not use this file except in compliance with the License. You
006     *  may obtain a copy of the License at
007     *
008     *      http://www.opensource.org/licenses/eclipse-1.0.php
009     *
010     *  See the COPYRIGHT.txt file distributed with this work for information
011     *  regarding copyright ownership.
012     */
013    package org.jikesrvm.osr;
014    
015    import java.util.LinkedList;
016    import org.jikesrvm.VM;
017    import org.jikesrvm.compilers.opt.ir.Instruction;
018    import org.jikesrvm.compilers.opt.ir.OsrPoint;
019    
020    /**
021     * Variable map element (osr instruction, LinkedList MethodVariables)
022     */
023    public final class VariableMapElement {
024      public final Instruction osr;
025      public final LinkedList<MethodVariables> mvars;
026    
027      public VariableMapElement(Instruction inst, LinkedList<MethodVariables> methVars) {
028        if (VM.VerifyAssertions) {
029          VM._assert(OsrPoint.conforms(inst));
030        }
031    
032        this.osr = inst;
033        this.mvars = methVars;
034      }
035    
036      public String toString() {
037        StringBuilder buf = new StringBuilder("  ");
038        buf.append(this.osr.toString()).append("\n");
039        for (int i = 0, n = this.mvars.size(); i < n; i++) {
040          buf.append(i);
041          buf.append("  ");
042          buf.append(this.mvars.get(i).toString());
043          buf.append("\n");
044        }
045        return buf.toString();
046      }
047    }