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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CallTarget.java @ 7274:19f5c9b96fa7

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Merge.
author Doug Simon <doug.simon@oracle.com>
date Tue, 18 Dec 2012 17:59:32 +0100
parents a4b84ba6dc2e
children 5e3d1a68664e
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7273:7f6bf286629c 7274:19f5c9b96fa7
1 /*
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.truffle.api;
24
25 import com.oracle.truffle.api.frame.*;
26
27 /**
28 * Represents the target of a call. Instances of this interface can be created using the
29 * {@link TruffleRuntime#createCallTarget(com.oracle.truffle.api.nodes.RootNode, FrameDescriptor)} method.
30 */
31 public abstract class CallTarget {
32
33 /**
34 * Calls this target as a root method and without arguments.
35 * @return the return result of the call
36 */
37 public final Object call() {
38 return call(null, Arguments.EMPTY_ARGUMENTS);
39 }
40
41 /**
42 * Calls this target with a caller frame and no arguments.
43 * @param caller the caller frame
44 * @return the return result of the call
45 */
46 public final Object call(PackedFrame caller) {
47 return call(caller, Arguments.EMPTY_ARGUMENTS);
48 }
49
50 /**
51 * Calls this target as a root method passing arguments.
52 * @param arguments the arguments that should be passed to the callee
53 * @return the return result of the call
54 */
55 public final Object call(Arguments arguments) {
56 return call(null, arguments);
57 }
58
59 /**
60 * Calls this target passing a caller frame and arguments.
61 * @param caller the caller frame
62 * @param arguments the arguments that should be passed to the callee
63 * @return the return result of the call
64 */
65 public abstract Object call(PackedFrame caller, Arguments arguments);
66 }