6829144: JSR 292 JVM features need a provisional Java API
Summary: JDK API and runtime (partial) for anonk, meth, indy
Reviewed-by: mr
/*
* Copyright 2008-2009 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.dyn;
import java.dyn.*;
import static sun.dyn.MethodHandleNatives.Constants.*;
/**
* The flavor of method handle which emulates invokespecial or invokestatic.
* @author jrose
*/
class DirectMethodHandle extends MethodHandle {
//inherited oop vmtarget; // methodOop or virtual class/interface oop
private final int vmindex; // method index within class or interface
{ vmindex = VM_INDEX_UNINITIALIZED; } // JVM may change this
// Constructors in this class *must* be package scoped or private.
DirectMethodHandle(MethodType mtype, MemberName m, boolean doDispatch, Class<?> lookupClass) {
super(Access.TOKEN, mtype);
assert(m.isMethod() || !doDispatch && m.isConstructor());
if (!m.isResolved())
throw new InternalError();
// Null check and replace privilege token (as passed to JVM) with null.
if (lookupClass.equals(Access.class)) lookupClass = null;
MethodHandleNatives.init(this, (Object) m, doDispatch, lookupClass);
}
boolean isValid() {
return (vmindex != VM_INDEX_UNINITIALIZED);
}
}