gecko/js/src/jsscriptinlines.h

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: set ts=8 sw=4 et tw=79 ft=cpp:
 *
 * ***** 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 SpiderMonkey JavaScript engine.
 *
 * The Initial Developer of the Original Code is
 * Mozilla Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Jason Orendorff <jorendorff@mozilla.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either 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 jsscriptinlines_h___
#define jsscriptinlines_h___

#include "jsfun.h"
#include "jsopcode.h"
#include "jsregexp.h"
#include "jsscript.h"

inline JSFunction *
JSScript::getFunction(size_t index)
{
    JSObject *funobj = getObject(index);
    JS_ASSERT(funobj->isFunction());
    JS_ASSERT(funobj == (JSObject *) funobj->getPrivate());
    JSFunction *fun = (JSFunction *) funobj;
    JS_ASSERT(FUN_INTERPRETED(fun));
    return fun;
}

inline JSObject *
JSScript::getRegExp(size_t index)
{
    JSObjectArray *arr = regexps();
    JS_ASSERT((uint32) index < arr->length);
    JSObject *obj = arr->vector[index];
    JS_ASSERT(obj->getClass() == &js_RegExpClass);
    return obj;
}

inline bool
JSScript::isEmpty() const
{
    if (this == emptyScript())
        return true;

    if (length <= 3) {
        jsbytecode *pc = code;

        if (JSOp(*pc) == JSOP_TRACE)
            ++pc;
        if (noScriptRval && JSOp(*pc) == JSOP_FALSE)
            ++pc;
        if (JSOp(*pc) == JSOP_STOP)
            return true;
    }
    return false;
}

#endif /* jsscriptinlines_h___ */