jdk/src/share/classes/java/lang/invoke/FilterOneArgument.java
changeset 10204 bbd2c5e0ce05
parent 10203 cca843a7d258
parent 10174 e63dffa79ddb
child 10205 de9223c94f9c
--- a/jdk/src/share/classes/java/lang/invoke/FilterOneArgument.java	Fri Aug 05 19:41:05 2011 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,84 +0,0 @@
-/*
- * 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.MethodHandleStatics.*;
-import static java.lang.invoke.MethodHandles.Lookup.IMPL_LOOKUP;
-
-/**
- * Unary function composition, useful for many small plumbing jobs.
- * The invoke method takes a single reference argument, and returns a reference
- * Internally, it first calls the {@code filter} method on the argument,
- * Making up the difference between the raw method type and the
- * final method type is the responsibility of a JVM-level adapter.
- * @author jrose
- */
-class FilterOneArgument extends BoundMethodHandle {
-    protected final MethodHandle filter;  // Object -> Object
-    protected final MethodHandle target;  // Object -> Object
-
-    @Override
-    String debugString() {
-        return target.toString();
-    }
-
-    protected Object invoke(Object argument) throws Throwable {
-        Object filteredArgument = filter.invokeExact(argument);
-        return target.invokeExact(filteredArgument);
-    }
-
-    private static final MethodHandle INVOKE;
-    static {
-        try {
-            INVOKE =
-                IMPL_LOOKUP.findVirtual(FilterOneArgument.class, "invoke",
-                                        MethodType.genericMethodType(1));
-        } catch (ReflectiveOperationException ex) {
-            throw uncaughtException(ex);
-        }
-    }
-
-    protected FilterOneArgument(MethodHandle filter, MethodHandle target) {
-        super(INVOKE);
-        this.filter = filter;
-        this.target = target;
-    }
-
-    static {
-        assert(MethodHandleNatives.workaroundWithoutRicochetFrames());  // this class is deprecated
-    }
-
-    public static MethodHandle make(MethodHandle filter, MethodHandle target) {
-        if (filter == null)  return target;
-        if (target == null)  return filter;
-        return new FilterOneArgument(filter, target);
-    }
-
-//    MethodHandle make(MethodHandle filter1, MethodHandle filter2, MethodHandle target) {
-//        MethodHandle filter = make(filter1, filter2);
-//        return make(filter, target);
-//    }
-}