C++ (Cpp) KidsPointer::isNull示例

示例#1

文件： jspropertytree.cpp 项目： 3l13/APE_Server

JS_ALWAYS_INLINE void
js::PropertyTree::orphanChildren(Shape *shape)
{
    KidsPointer *kidp = &shape->kids;

    JS_ASSERT(!kidp->isNull());

    if (kidp->isShape()) {
        Shape *kid = kidp->toShape();

        if (!JSID_IS_VOID(kid->id)) {
            JS_ASSERT(kid->parent == shape);
            kid->parent = NULL;
        }
    } else {
        KidsHash *hash = kidp->toHash();

        for (KidsHash::Range range = hash->all(); !range.empty(); range.popFront()) {
            Shape *kid = range.front();
            if (!JSID_IS_VOID(kid->id)) {
                JS_ASSERT(kid->parent == shape);
                kid->parent = NULL;
            }
        }

        hash->~KidsHash();
        js_free(hash);
    }

    kidp->setNull();
}

示例#2

文件： jspropertytree.cpp 项目： 3l13/APE_Server

bool
PropertyTree::insertChild(JSContext *cx, Shape *parent, Shape *child)
{
    JS_ASSERT(!parent->inDictionary());
    JS_ASSERT(!child->parent);
    JS_ASSERT(!child->inDictionary());
    JS_ASSERT(!JSID_IS_VOID(parent->id));
    JS_ASSERT(!JSID_IS_VOID(child->id));
    JS_ASSERT(cx->compartment == compartment);
    JS_ASSERT(child->compartment == parent->compartment);

    KidsPointer *kidp = &parent->kids;

    if (kidp->isNull()) {
        child->setParent(parent);
        kidp->setShape(child);
        return true;
    }

    if (kidp->isShape()) {
        Shape *shape = kidp->toShape();
        JS_ASSERT(shape != child);
        JS_ASSERT(!shape->matches(child));

        KidsHash *hash = HashChildren(shape, child);
        if (!hash) {
            JS_ReportOutOfMemory(cx);
            return false;
        }
        kidp->setHash(hash);
        child->setParent(parent);
        return true;
    }

    KidsHash *hash = kidp->toHash();
    KidsHash::AddPtr addPtr = hash->lookupForAdd(child);
    JS_ASSERT(!addPtr.found());
    if (!hash->add(addPtr, child)) {
        JS_ReportOutOfMemory(cx);
        return false;
    }
    child->setParent(parent);
    return true;
}

示例#3

文件： jspropertytree.cpp 项目： jrmuizel/mozilla-central-skia

bool
PropertyTree::insertChild(ExclusiveContext *cx, Shape *parent, Shape *child)
{
    JS_ASSERT(!parent->inDictionary());
    JS_ASSERT(!child->parent);
    JS_ASSERT(!child->inDictionary());
    JS_ASSERT(child->compartment() == parent->compartment());
    JS_ASSERT(cx->isInsideCurrentCompartment(this));

    KidsPointer *kidp = &parent->kids;

    if (kidp->isNull()) {
        child->setParent(parent);
        kidp->setShape(child);
        return true;
    }

    if (kidp->isShape()) {
        Shape *shape = kidp->toShape();
        JS_ASSERT(shape != child);
        JS_ASSERT(!shape->matches(child));

        KidsHash *hash = HashChildren(shape, child);
        if (!hash) {
            js_ReportOutOfMemory(cx);
            return false;
        }
        kidp->setHash(hash);
        child->setParent(parent);
        return true;
    }

    if (!kidp->toHash()->putNew(StackShape(child), child)) {
        js_ReportOutOfMemory(cx);
        return false;
    }

    child->setParent(parent);
    return true;
}

示例#4

文件： jspropertytree.cpp 项目： multi-sim/releases-mozilla-central

bool
PropertyTree::insertChild(JSContext *cx, UnrootedShape parent, UnrootedShape child)
{
    JS_ASSERT(!parent->inDictionary());
    JS_ASSERT(!child->parent);
    JS_ASSERT(!child->inDictionary());
    JS_ASSERT(cx->compartment == compartment);
    JS_ASSERT(child->compartment() == parent->compartment());

    KidsPointer *kidp = &parent->kids;

    if (kidp->isNull()) {
        child->setParent(parent);
        kidp->setShape(child);
        return true;
    }

    if (kidp->isShape()) {
        UnrootedShape shape = kidp->toShape();
        JS_ASSERT(shape != child);
        JS_ASSERT(!shape->matches(child));

        KidsHash *hash = HashChildren(shape, child);
        if (!hash) {
            JS_ReportOutOfMemory(cx);
            return false;
        }
        kidp->setHash(hash);
        child->setParent(parent);
        return true;
    }

    if (!kidp->toHash()->putNew(child, child)) {
        JS_ReportOutOfMemory(cx);
        return false;
    }

    child->setParent(parent);
    return true;
}