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C++ HandleObject::nativeGetSlot方法代码示例

本文整理汇总了C++中HandleObject::nativeGetSlot方法的典型用法代码示例。如果您正苦于以下问题:C++ HandleObject::nativeGetSlot方法的具体用法?C++ HandleObject::nativeGetSlot怎么用?C++ HandleObject::nativeGetSlot使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在HandleObject的用法示例。


在下文中一共展示了HandleObject::nativeGetSlot方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: holder

bool
WatchpointMap::triggerWatchpoint(JSContext *cx, HandleObject obj, HandleId id, MutableHandleValue vp)
{
    Map::Ptr p = map.lookup(WatchKey(obj, id));
    if (!p || p->value.held)
        return true;

    AutoEntryHolder holder(cx, map, p);

    /* Copy the entry, since GC would invalidate p. */
    JSWatchPointHandler handler = p->value.handler;
    RootedObject closure(cx, p->value.closure);

    /* Determine the property's old value. */
    Value old;
    old.setUndefined();
    if (obj->isNative()) {
        if (RawShape shape = obj->nativeLookup(cx, id)) {
            if (shape->hasSlot())
                old = obj->nativeGetSlot(shape->slot());
        }
    }

    // Read barrier to prevent an incorrectly gray closure from escaping the
    // watchpoint. See the comment before UnmarkGrayChildren in gc/Marking.cpp
    ExposeGCThingToActiveJS(closure, JSTRACE_OBJECT);

    /* Call the handler. */
    return handler(cx, obj, id, old, vp.address(), closure);
}
开发者ID:,项目名称:,代码行数:30,代码来源:

示例2: holder

bool
WatchpointMap::triggerWatchpoint(JSContext *cx, HandleObject obj, HandleId id, Value *vp)
{
    Map::Ptr p = map.lookup(WatchKey(obj, id));
    if (!p || p->value.held)
        return true;

    AutoEntryHolder holder(cx, map, p);

    /* Copy the entry, since GC would invalidate p. */
    JSWatchPointHandler handler = p->value.handler;
    RootedObject closure(cx, p->value.closure);

    /* Determine the property's old value. */
    Value old;
    old.setUndefined();
    if (obj->isNative()) {
        if (const Shape *shape = obj->nativeLookup(cx, id)) {
            if (shape->hasSlot())
                old = obj->nativeGetSlot(shape->slot());
        }
    }

    /* Call the handler. */
    return handler(cx, obj, id, old, vp, closure);
}
开发者ID:mozilla,项目名称:pjs,代码行数:26,代码来源:jswatchpoint.cpp


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