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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/Arguments.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 /**
26 * Base class for arguments passed to guest language methods via the
27 * {@link CallTarget#call(com.oracle.truffle.api.frame.PackedFrame, Arguments)} method. A guest language create a
28 * subclass with immutable fields representing the arguments passed to a guest language method. The {@link Arguments}
29 * object must be created immediately before a method call and it must not be stored in a field or cast to
30 * {@link java.lang.Object}.
31 */
32 public class Arguments {
33
34 /**
35 * Constant that can be used as an argument to
36 * {@link CallTarget#call(com.oracle.truffle.api.frame.PackedFrame, Arguments)} in case no arguments should be
37 * supplied.
38 */
39 public static final Arguments EMPTY_ARGUMENTS = new Arguments();
40
41 /**
42 * Constructs an empty {@link Arguments} instance. Guest languages should create a subclass to specify their own arguments.
43 */
44 protected Arguments() {
45 }
46 }