js/src/vm/PropertyKey.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/vm/PropertyKey.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,37 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
     1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
     1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +/* PropertyKey implementation details. */
    1.11 +
    1.12 +#include "js/PropertyKey.h"
    1.13 +
    1.14 +#include "jsatom.h"
    1.15 +#include "jscntxt.h"
    1.16 +
    1.17 +#include "js/RootingAPI.h"
    1.18 +#include "js/Value.h"
    1.19 +#include "vm/String.h"
    1.20 +
    1.21 +using namespace js;
    1.22 +
    1.23 +bool
    1.24 +JS::detail::ToPropertyKeySlow(JSContext *cx, HandleValue v, PropertyKey *key)
    1.25 +{
    1.26 +    MOZ_ASSERT_IF(v.isInt32(), v.toInt32() < 0);
    1.27 +
    1.28 +    RootedAtom atom(cx);
    1.29 +    if (!ToAtom<CanGC>(cx, v))
    1.30 +        return false;
    1.31 +
    1.32 +    uint32_t index;
    1.33 +    if (atom->isIndex(&index)) {
    1.34 +        *key = PropertyKey(index);
    1.35 +        return true;
    1.36 +    }
    1.37 +
    1.38 +    key->v.setString(atom->asPropertyName());
    1.39 +    return true;
    1.40 +}

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