jdk/src/share/classes/java/lang/invoke/DirectMethodHandle.java
changeset 8822 8145ab9f5f86
parent 8821 2836ee97ee27
child 13423 17843fff200d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/lang/invoke/DirectMethodHandle.java	Wed Mar 23 23:02:31 2011 -0700
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2008, 2011, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package java.lang.invoke;
+
+import static java.lang.invoke.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(mtype);
+
+        assert(m.isMethod() || !doDispatch && m.isConstructor());
+        if (!m.isResolved())
+            throw new InternalError();
+
+        MethodHandleNatives.init(this, (Object) m, doDispatch, lookupClass);
+    }
+
+    boolean isValid() {
+        return (vmindex != VM_INDEX_UNINITIALIZED);
+    }
+}