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

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Revision 507 - (show annotations)
Sun Jan 10 07:23:34 2010 UTC (9 years, 9 months ago) by siliconforks
File MIME type: text/plain
File size: 3337 byte(s)
Update SpiderMonkey from Firefox 3.6rc1.

1 /* -*- 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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