C++ (Cpp) InvokeArgsGuard::pop Examples

Example #1

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

bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, JSObject *wrapper, Class *clasp, Native native, CallArgs srcArgs)
{
    JS_ASSERT_IF(!srcArgs.calleev().isUndefined(),
                 srcArgs.callee().toFunction()->native() == native ||
                 srcArgs.callee().toFunction()->native() == js_generic_native_method_dispatcher);
    JS_ASSERT(&srcArgs.thisv().toObject() == wrapper);
    JS_ASSERT(!UnwrapObject(wrapper)->isCrossCompartmentWrapper());

    JSObject *wrapped = wrappedObject(wrapper);
    AutoCompartment call(cx, wrapped);
    if (!call.enter())
        return false;

    InvokeArgsGuard dstArgs;
    if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
        return false;

    Value *src = srcArgs.base(); 
    Value *srcend = srcArgs.array() + srcArgs.length();
    Value *dst = dstArgs.base();
    for (; src != srcend; ++src, ++dst) {
        *dst = *src;
        if (!call.destination->wrap(cx, dst))
            return false;
    }

    if (!Wrapper::nativeCall(cx, wrapper, clasp, native, dstArgs))
        return false;

    dstArgs.pop();
    call.leave();
    srcArgs.rval() = dstArgs.rval();
    return call.origin->wrap(cx, &srcArgs.rval());
}

Example #2

File: jswrapper.cpp Project: IcepOwer/Spidermonkey

bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, IsAcceptableThis test, NativeImpl impl,
                                    CallArgs srcArgs)
{
    Rooted<JSObject*> wrapper(cx, &srcArgs.thisv().toObject());
    JS_ASSERT(srcArgs.thisv().isMagic(JS_IS_CONSTRUCTING) ||
              !UnwrapObject(wrapper)->isCrossCompartmentWrapper());

    RootedObject wrapped(cx, wrappedObject(wrapper));
    {
        AutoCompartment call(cx, wrapped);
        InvokeArgsGuard dstArgs;
        if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
            return false;

        Value *src = srcArgs.base();
        Value *srcend = srcArgs.array() + srcArgs.length();
        Value *dst = dstArgs.base();
        for (; src < srcend; ++src, ++dst) {
            *dst = *src;
            if (!cx->compartment->wrap(cx, dst))
                return false;
        }

        if (!CallNonGenericMethod(cx, test, impl, dstArgs))
            return false;

        srcArgs.rval().set(dstArgs.rval());
        dstArgs.pop();
    }
    return cx->compartment->wrap(cx, srcArgs.rval().address());
}

Example #3

File: jswrapper.cpp Project: lofter2011/Icefox

bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, JSObject *wrapper, Class *clasp, Native native, CallArgs srcArgs)
{
    JS_ASSERT(srcArgs.thisv().isMagic(JS_IS_CONSTRUCTING) || &srcArgs.thisv().toObject() == wrapper);
    JS_ASSERT(!UnwrapObject(wrapper)->isCrossCompartmentWrapper());

    JSObject *wrapped = wrappedObject(wrapper);
    AutoCompartment call(cx, wrapped);
    if (!call.enter())
        return false;

    InvokeArgsGuard dstArgs;
    if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
        return false;

    Value *src = srcArgs.base();
    Value *srcend = srcArgs.array() + srcArgs.length();
    Value *dst = dstArgs.base();
    for (; src != srcend; ++src, ++dst) {
        *dst = *src;
        if (!call.destination->wrap(cx, dst))
            return false;
    }

    if (!CallJSNative(cx, native, dstArgs))
        return false;

    srcArgs.rval() = dstArgs.rval();
    dstArgs.pop();
    call.leave();
    return cx->compartment->wrap(cx, &srcArgs.rval());
}

Example #4

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

bool
CrossCompartmentWrapper::nativeCall(JSContext *cx, IsAcceptableThis test, NativeImpl impl,
                                    CallArgs srcArgs)
{
    RootedObject wrapper(cx, &srcArgs.thisv().toObject());
    JS_ASSERT(srcArgs.thisv().isMagic(JS_IS_CONSTRUCTING) ||
              !UncheckedUnwrap(wrapper)->isCrossCompartmentWrapper());

    RootedObject wrapped(cx, wrappedObject(wrapper));
    {
        AutoCompartment call(cx, wrapped);
        InvokeArgsGuard dstArgs;
        if (!cx->stack.pushInvokeArgs(cx, srcArgs.length(), &dstArgs))
            return false;

        Value *src = srcArgs.base();
        Value *srcend = srcArgs.array() + srcArgs.length();
        Value *dst = dstArgs.base();

        RootedValue source(cx);
        for (; src < srcend; ++src, ++dst) {
            source = *src;
            if (!cx->compartment->wrap(cx, &source))
                return false;
            *dst = source.get();

            // Handle |this| specially. When we rewrap on the other side of the
            // membrane, we might apply a same-compartment security wrapper that
            // will stymie this whole process. If that happens, unwrap the wrapper.
            // This logic can go away when same-compartment security wrappers go away.
            if ((src == srcArgs.base() + 1) && dst->isObject()) {
                RootedObject thisObj(cx, &dst->toObject());
                if (thisObj->isWrapper() &&
                    !Wrapper::wrapperHandler(thisObj)->isSafeToUnwrap())
                {
                    JS_ASSERT(!IsCrossCompartmentWrapper(thisObj));
                    *dst = ObjectValue(*Wrapper::wrappedObject(thisObj));
                }
            }
        }

        if (!CallNonGenericMethod(cx, test, impl, dstArgs))
            return false;

        srcArgs.rval().set(dstArgs.rval());
        dstArgs.pop();
    }
    return cx->compartment->wrap(cx, srcArgs.rval());
}