C++ (Cpp) Value::isMarkable Examples

Example #1

File: MacroAssembler-x86.cpp Project: JefferyQ/spidernode

void
MacroAssembler::branchTestValue(Condition cond, const ValueOperand& lhs,
                                const Value& rhs, Label* label)
{
    MOZ_ASSERT(cond == Equal || cond == NotEqual);
    jsval_layout jv = JSVAL_TO_IMPL(rhs);
    if (rhs.isMarkable())
        cmpPtr(lhs.payloadReg(), ImmGCPtr(reinterpret_cast<gc::Cell*>(rhs.toGCThing())));
    else
        cmpPtr(lhs.payloadReg(), ImmWord(jv.s.payload.i32));

    if (cond == Equal) {
        Label done;
        j(NotEqual, &done);
        {
            cmp32(lhs.typeReg(), Imm32(jv.s.tag));
            j(Equal, label);
        }
        bind(&done);
    } else {
        j(NotEqual, label);

        cmp32(lhs.typeReg(), Imm32(jv.s.tag));
        j(NotEqual, label);
    }
}

Example #2

File: MacroAssembler-x86.cpp Project: martynhaigh/gecko-dev

void
MacroAssemblerX86::branchTestValue(Condition cond, const ValueOperand &value, const Value &v, Label *label)
{
    jsval_layout jv = JSVAL_TO_IMPL(v);
    if (v.isMarkable())
        cmpl(value.payloadReg(), ImmGCPtr(reinterpret_cast<gc::Cell *>(v.toGCThing())));
    else
        cmpl(value.payloadReg(), Imm32(jv.s.payload.i32));

    if (cond == Equal) {
        Label done;
        j(NotEqual, &done);
        {
            cmpl(value.typeReg(), Imm32(jv.s.tag));
            j(Equal, label);
        }
        bind(&done);
    } else {
        MOZ_ASSERT(cond == NotEqual);
        j(NotEqual, label);

        cmpl(value.typeReg(), Imm32(jv.s.tag));
        j(NotEqual, label);
    }
}

Example #3

File: Barrier.cpp Project: MichaelKohler/gecko-dev

bool
HeapSlot::preconditionForWriteBarrierPost(NativeObject* obj, Kind kind, uint32_t slot,
                                          const Value& target) const
{
    bool isCorrectSlot = kind == Slot
                         ? obj->getSlotAddressUnchecked(slot)->get() == target
                         : static_cast<HeapSlot*>(obj->getDenseElements() + slot)->get() == target;
    bool isBlackToGray = target.isMarkable() &&
                         IsMarkedBlack(obj) && JS::GCThingIsMarkedGray(JS::GCCellPtr(target));
    return isCorrectSlot && !isBlackToGray;
}

Example #4

File: jswrapper.cpp Project: RickEyre/mozilla-central

static void
NukeSlot(JSObject *wrapper, uint32_t slot, Value v)
{
    Value old = wrapper->getSlot(slot);
    if (old.isMarkable()) {
        Zone *zone = ZoneOfValue(old);
        AutoMarkInDeadZone amd(zone);
        wrapper->setReservedSlot(slot, v);
    } else {
        wrapper->setReservedSlot(slot, v);
    }
}

Example #5

File: ProxyObject.cpp Project: brendanlong/gecko-dev

static void
NukeSlot(ProxyObject *proxy, uint32_t slot)
{
    Value old = proxy->getSlot(slot);
    if (old.isMarkable()) {
        Zone *zone = ZoneOfValue(old);
        AutoMarkInDeadZone amd(zone);
        proxy->setReservedSlot(slot, NullValue());
    } else {
        proxy->setReservedSlot(slot, NullValue());
    }
}

Example #6

File: jswrapper.cpp Project: IcepOwer/Spidermonkey

static void
NukeSlot(JSObject *wrapper, uint32_t slot, Value v)
{
    Value old = wrapper->getSlot(slot);
    if (old.isMarkable()) {
        Cell *cell = static_cast<Cell *>(old.toGCThing());
        AutoMarkInDeadCompartment amd(cell->compartment());
        wrapper->setReservedSlot(slot, v);
    } else {
        wrapper->setReservedSlot(slot, v);
    }
}

Example #7

File: Barrier.cpp Project: Akesure/jxcore

void
ValueReadBarrier(const Value &value)
{
    JS_ASSERT(!CurrentThreadIsIonCompiling());
    if (value.isObject())
        JSObject::readBarrier(&value.toObject());
    else if (value.isString())
        JSString::readBarrier(value.toString());
    else if (value.isSymbol())
        JS::Symbol::readBarrier(value.toSymbol());
    else
        JS_ASSERT(!value.isMarkable());
}