1 /*
2 * Copyright (c) 2010, 2013, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.nashorn.internal.runtime;
27
28 /**
29 * This is the base class for function scopes. Subclasses of this class are
30 * produced by the ObjectClassGenerator along with additional fields for storing
31 * local vars. The number of fields required is determined by ObjectCreator.
32 *
33 * The scope is also responsible for handling the var arg 'arguments' object,
34 * though most of the access is via generated code.
35 *
36 * The constructor of this class is responsible for any function prologue
37 * involving the scope.
38 */
39 public class FunctionScope extends Scope {
40
41 /** Area to store scope arguments. (public for access from scripts.) */
42 public final ScriptObject arguments;
43
44 /**
45 * Constructor
46 *
47 * @param map property map
48 * @param callerScope caller scope
49 * @param arguments arguments
50 */
51 public FunctionScope(final PropertyMap map, final ScriptObject callerScope, final ScriptObject arguments) {
52 super(callerScope, map);
53 this.arguments = arguments;
54 }
55
56 /**
57 * Constructor
58 *
59 * @param map property map
60 * @param callerScope caller scope
61 */
62 public FunctionScope(final PropertyMap map, final ScriptObject callerScope) {
63 super(callerScope, map);
64 this.arguments = null;
65 }
66
67 /**
68 * Constructor
69 *
70 * @param map property map
71 * @param primitiveSpill primitive spill pool
72 * @param objectSpill reference spill pool
73 */
74 public FunctionScope(final PropertyMap map, final long[] primitiveSpill, final Object[] objectSpill) {
75 super(map, primitiveSpill, objectSpill);
76 this.arguments = null;
77 }
78 }
--- EOF ---