/[jscoverage]/trunk/js/jsatominlines.h
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Annotation of /trunk/js/jsatominlines.h

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Revision 507 - (hide annotations)
Sun Jan 10 07:23:34 2010 UTC (12 years, 5 months ago) by siliconforks
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Update SpiderMonkey from Firefox 3.6rc1.

1 siliconforks 507 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2     *
3     * ***** BEGIN LICENSE BLOCK *****
4     * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5     *
6     * The contents of this file are subject to the Mozilla Public License Version
7     * 1.1 (the "License"); you may not use this file except in compliance with
8     * the License. You may obtain a copy of the License at
9     * http://www.mozilla.org/MPL/
10     *
11     * Software distributed under the License is distributed on an "AS IS" basis,
12     * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13     * for the specific language governing rights and limitations under the
14     * License.
15     *
16     * The Original Code is Mozilla Communicator client code, released
17     * March 31, 1998.
18     *
19     * The Initial Developer of the Original Code is
20     * Netscape Communications Corporation.
21     * Portions created by the Initial Developer are Copyright (C) 1998
22     * the Initial Developer. All Rights Reserved.
23     *
24     * Contributor(s):
25     *
26     * Alternatively, the contents of this file may be used under the terms of
27     * either of the GNU General Public License Version 2 or later (the "GPL"),
28     * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
29     * in which case the provisions of the GPL or the LGPL are applicable instead
30     * of those above. If you wish to allow use of your version of this file only
31     * under the terms of either the GPL or the LGPL, and not to allow others to
32     * use your version of this file under the terms of the MPL, indicate your
33     * decision by deleting the provisions above and replace them with the notice
34     * and other provisions required by the GPL or the LGPL. If you do not delete
35     * the provisions above, a recipient may use your version of this file under
36     * the terms of any one of the MPL, the GPL or the LGPL.
37     *
38     * ***** END LICENSE BLOCK ***** */
39    
40     #ifndef jsatom_inlines_h___
41     #define jsatom_inlines_h___
42    
43     #include "jsatom.h"
44     #include "jsnum.h"
45    
46     /*
47     * Convert v to an atomized string and wrap it as an id.
48     */
49     inline JSBool
50     js_ValueToStringId(JSContext *cx, jsval v, jsid *idp)
51     {
52     JSString *str;
53     JSAtom *atom;
54    
55     /*
56     * Optimize for the common case where v is an already-atomized string. The
57     * comment in jsstr.h before JSString::flatSetAtomized explains why this is
58     * thread-safe. The extra rooting via lastAtom (which would otherwise be
59     * done in js_js_AtomizeString) ensures the caller that the resulting id at
60     * is least weakly rooted.
61     */
62     if (JSVAL_IS_STRING(v)) {
63     str = JSVAL_TO_STRING(v);
64     if (str->isAtomized()) {
65     cx->weakRoots.lastAtom = v;
66     *idp = ATOM_TO_JSID((JSAtom *) v);
67     return JS_TRUE;
68     }
69     } else {
70     str = js_ValueToString(cx, v);
71     if (!str)
72     return JS_FALSE;
73     }
74     atom = js_AtomizeString(cx, str, 0);
75     if (!atom)
76     return JS_FALSE;
77     *idp = ATOM_TO_JSID(atom);
78     return JS_TRUE;
79     }
80    
81     inline JSBool
82     js_Int32ToId(JSContext* cx, int32 index, jsid* id)
83     {
84     if (INT_FITS_IN_JSVAL(index)) {
85     *id = INT_TO_JSID(index);
86     JS_ASSERT(INT_JSID_TO_JSVAL(*id) == INT_TO_JSVAL(index));
87     return JS_TRUE;
88     }
89     JSString* str = js_NumberToString(cx, index);
90     if (!str)
91     return JS_FALSE;
92     return js_ValueToStringId(cx, STRING_TO_JSVAL(str), id);
93     }
94    
95     #endif /* jsatom_inlines_h___ */

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