jaspex.speculation.newspec.CleanupFutureTypeInfoMethodVisitor.java Source code

Introduction

Here is the source code for jaspex.speculation.newspec.CleanupFutureTypeInfoMethodVisitor.java

Source

/*
 * jaspex-mls: a Java Software Speculative Parallelization Framework
 * Copyright (C) 2015 Ivo Anjo <ivo.anjo@ist.utl.pt>
 *
 * This file is part of jaspex-mls.
 *
 * jaspex-mls is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * jaspex-mls 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 Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with jaspex-mls.  If not, see <http://www.gnu.org/licenses/>.
 */

package jaspex.speculation.newspec;

import jaspex.speculation.CommonTypes;

import org.objectweb.asm.*;

import static org.objectweb.asm.Opcodes.*;

import static jaspex.speculation.CommonTypes.FUTURE;

/** MethodVisitor que remove a informao a mais passada dentro do tipo dos Futuros inseridos no cdigo.
  * Ver tambm comentrios no InsertContinuationSpeculationMethodVisitor.visitMethodInsn().
  **/
public class CleanupFutureTypeInfoMethodVisitor extends MethodVisitor {

    public CleanupFutureTypeInfoMethodVisitor(int access, String name, String desc, String signature,
            String[] exceptions, ClassVisitor cv) {
        super(Opcodes.ASM4, cv.visitMethod(access, name, desc, signature, exceptions));
    }

    @Override
    public void visitMethodInsn(int opcode, String owner, String name, String desc) {
        if (opcode == INVOKESTATIC && owner.equals(CommonTypes.CONTSPECULATIONCONTROL.asmName())
                && name.equals("spawnSpeculation")) {
            desc = desc.substring(0, desc.indexOf(')') + 1) + FUTURE.bytecodeName();
        } else if (opcode == INVOKEINTERFACE && owner.startsWith(FUTURE.asmName())) {
            owner = FUTURE.asmName();
        }
        mv.visitMethodInsn(opcode, owner, name, desc);
    }

}