package soot.jimple.toolkits.thread.mhp;

/*-
 * #%L
 * Soot - a J*va Optimization Framework
 * %%
 * Copyright (C) 1997 - 2018 Raja Vallée-Rai and others
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 2.1 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-2.1.html>.
 * #L%
 */

import java.util.ArrayList;
import java.util.Iterator;

import soot.jimple.toolkits.thread.mhp.stmt.JPegStmt;
import soot.util.Chain;

// *** USE AT YOUR OWN RISK ***
// May Happen in Parallel (MHP) analysis by Lin Li.
// This code should be treated as beta-quality code.
// It was written in 2003, but not incorporated into Soot until 2006.
// As such, it may contain incorrect assumptions about the usage
// of certain Soot classes.
// Some portions of this MHP analysis have been quality-checked, and are
// now used by the Transactions toolkit.
//
// -Richard L. Halpert, 2006-11-30

public class MethodInliner {

  // private ArrayList inlineSite;
  MethodInliner() {
    // inlineSite = new ArrayList();
  }

  public static void inline(ArrayList sites) {
    Iterator it = sites.iterator();
    while (it.hasNext()) {
      ArrayList element = (ArrayList) it.next();
      JPegStmt stmt = (JPegStmt) element.get(0);
      Chain chain = (Chain) element.get(1);
      PegGraph p1 = (PegGraph) element.get(2);
      PegGraph p2 = (PegGraph) element.get(3);
      // testHeads(p2);
      // System.out.println("before inlining: stmt:"+stmt);
      // System.out.println(p1);

      inline(stmt, chain, p1, p2);
      // System.out.println("after inlining: stmt:"+stmt);

      // System.out.println(p1);
    }

  }

  private static void inline(JPegStmt invokeStmt, Chain chain, PegGraph container, PegGraph inlinee) {
    // System.out.println("==inside inline===");
    // PegToDotFile printer = new PegToDotFile(inlinee, false, "before_addPeg_inlinee"+invokeStmt.getName());
    if (!container.addPeg(inlinee, chain)) {
      throw new RuntimeException("heads >1 stm: " + invokeStmt);
    }

    // printer = new PegToDotFile(container, false, "after_addPeg_"+invokeStmt);
    container.buildSuccsForInlining(invokeStmt, chain, inlinee);
    // printer = new PegToDotFile(container, false, "after_bu_succ_"+invokeStmt.getName());

    // System.out.println(container);
    container.buildMaps(inlinee);
    container.buildPreds();
    // container.testStartToThread();

  }

}
