https://github.com/mozilla/gecko-dev
Tip revision: 0cc586d11f65faa3e70bb51ba501a3cfa109b6b7 authored by seabld on 01 December 2011, 03:26:00 UTC
Added tag SEAMONKEY_2_6b2_RELEASE for changeset FIREFOX_9_0b4_BUILD1. CLOSED TREE a=release
Added tag SEAMONKEY_2_6b2_RELEASE for changeset FIREFOX_9_0b4_BUILD1. CLOSED TREE a=release
Tip revision: 0cc586d
jsatominlines.h
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef jsatominlines_h___
#define jsatominlines_h___
#include "mozilla/RangedPtr.h"
#include "jsatom.h"
#include "jsnum.h"
#include "jsobj.h"
inline bool
js_ValueToAtom(JSContext *cx, const js::Value &v, JSAtom **atomp)
{
if (!v.isString()) {
JSString *str = js_ValueToString(cx, v);
if (!str)
return false;
JS::Anchor<JSString *> anchor(str);
*atomp = js_AtomizeString(cx, str);
return !!*atomp;
}
JSString *str = v.toString();
if (str->isAtom()) {
*atomp = &str->asAtom();
return true;
}
*atomp = js_AtomizeString(cx, str);
return !!*atomp;
}
inline bool
js_ValueToStringId(JSContext *cx, const js::Value &v, jsid *idp)
{
JSAtom *atom;
if (js_ValueToAtom(cx, v, &atom)) {
*idp = ATOM_TO_JSID(atom);
return true;
}
return false;
}
inline bool
js_InternNonIntElementId(JSContext *cx, JSObject *obj, const js::Value &idval,
jsid *idp)
{
JS_ASSERT(!idval.isInt32() || !INT_FITS_IN_JSID(idval.toInt32()));
#if JS_HAS_XML_SUPPORT
extern bool js_InternNonIntElementIdSlow(JSContext *, JSObject *,
const js::Value &, jsid *);
if (idval.isObject())
return js_InternNonIntElementIdSlow(cx, obj, idval, idp);
#endif
return js_ValueToStringId(cx, idval, idp);
}
inline bool
js_InternNonIntElementId(JSContext *cx, JSObject *obj, const js::Value &idval,
jsid *idp, js::Value *vp)
{
JS_ASSERT(!idval.isInt32() || !INT_FITS_IN_JSID(idval.toInt32()));
#if JS_HAS_XML_SUPPORT
extern bool js_InternNonIntElementIdSlow(JSContext *, JSObject *,
const js::Value &,
jsid *, js::Value *);
if (idval.isObject())
return js_InternNonIntElementIdSlow(cx, obj, idval, idp, vp);
#endif
JSAtom *atom;
if (js_ValueToAtom(cx, idval, &atom)) {
*idp = ATOM_TO_JSID(atom);
vp->setString(atom);
return true;
}
return false;
}
inline bool
js_Int32ToId(JSContext* cx, int32 index, jsid* id)
{
if (INT_FITS_IN_JSID(index)) {
*id = INT_TO_JSID(index);
return true;
}
JSString* str = js_NumberToString(cx, index);
if (!str)
return false;
return js_ValueToStringId(cx, js::StringValue(str), id);
}
namespace js {
/*
* Write out character representing |index| to the memory just before |end|.
* Thus |*end| is not touched, but |end[-1]| and earlier are modified as
* appropriate. There must be at least js::UINT32_CHAR_BUFFER_LENGTH elements
* before |end| to avoid buffer underflow. The start of the characters written
* is returned and is necessarily before |end|.
*/
template <typename T>
inline mozilla::RangedPtr<T>
BackfillIndexInCharBuffer(uint32 index, mozilla::RangedPtr<T> end)
{
#ifdef DEBUG
/*
* Assert that the buffer we're filling will hold as many characters as we
* could write out, by dereferencing the index that would hold the most
* significant digit.
*/
(void) *(end - UINT32_CHAR_BUFFER_LENGTH);
#endif
do {
uint32 next = index / 10, digit = index % 10;
*--end = '0' + digit;
index = next;
} while (index > 0);
return end;
}
inline bool
IndexToId(JSContext *cx, uint32 index, jsid *idp)
{
if (index <= JSID_INT_MAX) {
*idp = INT_TO_JSID(index);
return true;
}
extern bool IndexToIdSlow(JSContext *cx, uint32 index, jsid *idp);
return IndexToIdSlow(cx, index, idp);
}
static JS_ALWAYS_INLINE JSString *
IdToString(JSContext *cx, jsid id)
{
if (JSID_IS_STRING(id))
return JSID_TO_STRING(id);
if (JS_LIKELY(JSID_IS_INT(id)))
return js_IntToString(cx, JSID_TO_INT(id));
return js_ValueToString(cx, IdToValue(id));
}
} // namespace js
#endif /* jsatominlines_h___ */