/*
 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
 *
 *  This file is licensed to You under the Eclipse Public License (EPL);
 *  You may not use this file except in compliance with the License. You
 *  may obtain a copy of the License at
 *
 *      http://www.opensource.org/licenses/eclipse-1.0.php
 *
 *  See the COPYRIGHT.txt file distributed with this work for information
 *  regarding copyright ownership.
 */
package org.jikesrvm.osr;

import java.util.LinkedList;
import org.jikesrvm.VM;
import org.jikesrvm.compilers.opt.ir.Instruction;
import org.jikesrvm.compilers.opt.ir.OsrPoint;

/**
 * Variable map element (osr instruction, LinkedList MethodVariables)
 */
public final class VariableMapElement {
  public final Instruction osr;
  public final LinkedList<MethodVariables> mvars;

  public VariableMapElement(Instruction inst, LinkedList<MethodVariables> methVars) {
    if (VM.VerifyAssertions) {
      VM._assert(OsrPoint.conforms(inst));
    }

    this.osr = inst;
    this.mvars = methVars;
  }

  @Override
  public String toString() {
    StringBuilder buf = new StringBuilder("  ");
    buf.append(this.osr.toString()).append("\n");
    for (int i = 0, n = this.mvars.size(); i < n; i++) {
      buf.append(i);
      buf.append("  ");
      buf.append(this.mvars.get(i).toString());
      buf.append("\n");
    }
    return buf.toString();
  }
}