aboutsummaryrefslogtreecommitdiffstats
path: root/infrastructure/rhino1_7R1/src/org/mozilla/javascript/continuations/Continuation.java
blob: c6d39668590ca409545833b21a38f0b653dfe244 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Rhino code, released
 * May 6, 1999.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1997-1999
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Igor Bukanov
 *
 * Alternatively, the contents of this file may be used under the terms of
 * the GNU General Public License Version 2 or later (the "GPL"), in which
 * case the provisions of the GPL are applicable instead of those above. If
 * you wish to allow use of your version of this file only under the terms of
 * the GPL and not to allow others to use your version of this file under the
 * MPL, indicate your decision by deleting the provisions above and replacing
 * them with the notice and other provisions required by the GPL. If you do
 * not delete the provisions above, a recipient may use your version of this
 * file under either the MPL or the GPL.
 *
 * ***** END LICENSE BLOCK ***** */

package org.mozilla.javascript.continuations;

import org.mozilla.javascript.*;

public final class Continuation extends IdScriptableObject implements Function
{
    static final long serialVersionUID = 1794167133757605367L;

    private static final Object FTAG = new Object();

    private Object implementation;

    public static void init(Context cx, Scriptable scope, boolean sealed)
    {
        Continuation obj = new Continuation();
        obj.exportAsJSClass(MAX_PROTOTYPE_ID, scope, sealed);
    }

    public Object getImplementation()
    {
        return implementation;
    }

    public void initImplementation(Object implementation)
    {
        this.implementation = implementation;
    }

    public String getClassName()
    {
        return "Continuation";
    }

    public Scriptable construct(Context cx, Scriptable scope, Object[] args)
    {
        throw Context.reportRuntimeError("Direct call is not supported");
    }

    public Object call(Context cx, Scriptable scope, Scriptable thisObj,
                       Object[] args)
    {
        return Interpreter.restartContinuation(this, cx, scope, args);
    }

    public static boolean isContinuationConstructor(IdFunctionObject f)
    {
        if (f.hasTag(FTAG) && f.methodId() == Id_constructor) {
            return true;
        }
        return false;
    }

    protected void initPrototypeId(int id)
    {
        String s;
        int arity;
        switch (id) {
          case Id_constructor: arity=0; s="constructor"; break;
          default: throw new IllegalArgumentException(String.valueOf(id));
        }
        initPrototypeMethod(FTAG, id, s, arity);
    }

    public Object execIdCall(IdFunctionObject f, Context cx, Scriptable scope,
                             Scriptable thisObj, Object[] args)
    {
        if (!f.hasTag(FTAG)) {
            return super.execIdCall(f, cx, scope, thisObj, args);
        }
        int id = f.methodId();
        switch (id) {
          case Id_constructor:
            throw Context.reportRuntimeError("Direct call is not supported");
        }
        throw new IllegalArgumentException(String.valueOf(id));
    }

// #string_id_map#

    protected int findPrototypeId(String s)
    {
        int id;
// #generated# Last update: 2007-05-09 08:16:40 EDT
        L0: { id = 0; String X = null;
            if (s.length()==11) { X="constructor";id=Id_constructor; }
            if (X!=null && X!=s && !X.equals(s)) id = 0;
            break L0;
        }
// #/generated#
        return id;
    }

    private static final int
        Id_constructor          = 1,
        MAX_PROTOTYPE_ID        = 1;

// #/string_id_map#
}