hotspot/agent/src/share/classes/sun/jvm/hotspot/jdi/NonConcreteMethodImpl.java

/*
 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

package sun.jvm.hotspot.jdi;

import com.sun.jdi.*;

import java.util.List;
import java.util.Map;
import java.util.Iterator;
import java.util.ListIterator;
import java.util.HashMap;
import java.util.ArrayList;
import java.util.Collections;

/**
 * Represents non-concrete (that is, native or abstract) methods.
 * Private to MethodImpl.
 */
public class NonConcreteMethodImpl extends MethodImpl {

    private Location location = null;

    NonConcreteMethodImpl(VirtualMachine vm,
                          ReferenceTypeImpl declaringType,
                          sun.jvm.hotspot.oops.Method saMethod) {
        super(vm, declaringType, saMethod);
    }

    public Location location() {
        if (isAbstract()) {
            return null;
        }
        if (location == null) {
            location = new LocationImpl(vm, this, -1);
        }
        return location;
    }

    public List allLineLocations(String stratumID,
                                 String sourceName) {
        return new ArrayList(0);
    }

    public List allLineLocations(SDE.Stratum stratum,
                                 String sourceName) {
        return new ArrayList(0);
    }

    public List locationsOfLine(String stratumID,
                                String sourceName,
                                int lineNumber) {
        return new ArrayList(0);
    }

    public List locationsOfLine(SDE.Stratum stratum,
                                String sourceName,
                                int lineNumber) {
        return new ArrayList(0);
    }

    public Location locationOfCodeIndex(long codeIndex) {
        return null;
    }

    LineInfo codeIndexToLineInfo(SDE.Stratum stratum,
                                 long codeIndex) {

        if (stratum.isJava()) {
            return new BaseLineInfo(-1, declaringType);
        } else {
            return new StratumLineInfo(stratum.id(), -1,
                                       null, null);
        }
    }

    public List variables() throws AbsentInformationException {
        throw new AbsentInformationException();
    }

    public List variablesByName(String name) throws AbsentInformationException {
        throw new AbsentInformationException();
    }

    public List arguments() throws AbsentInformationException {
        throw new AbsentInformationException();
    }

    public byte[] bytecodes() {
        return new byte[0];
    }

    int argSlotCount() throws AbsentInformationException {
        throw new InternalException("should not get here");
    }
}