Method associateWeakReference

valdi/src/valdi/quickjs/QuickJSJavaScriptContext.cpp:408–442

        if (!exceptionTracker) {
            return Valdi::JSValueRef();
        }

        // JS_DefinePropertyValueStr() automatically releases the given value.
        auto retainedName = JS_DupValue(_context, fromValdiJSValue(value.get()));

        checkCall(exceptionTracker,
                  JS_DefinePropertyValueStr(_context, fromValdiJSValue(functionObject.get()), "name", retainedName, 0));

        if (!exceptionTracker) {
            return Valdi::JSValueRef();
        }
    }

    return functionObject;
}

size_t QuickJSJavaScriptContext::associateWeakReference(const JSValue& value,
                                                        Valdi::JSExceptionTracker& exceptionTracker) {
    auto guard = _threadAccessChecker.guard();
    auto existingFinalizer =
        checkCallAndGetValue(exceptionTracker, JS_GetProperty(_context, value, _objectFinalizerAtomKey));
    if (!exceptionTracker) {
        return 0;
    }

    auto weakReferenceId = weakReferenceIdFromJSWeakReferenceFinalizer(fromValdiJSValue(existingFinalizer.get()));
    if (weakReferenceId != 0) {
        return weakReferenceId;
    }

    // Create the finalizer
    auto finalizerObject = checkCallAndGetValue(
        exceptionTracker, JS_NewObjectProtoClass(_context, _objectPrototype, _weakReferenceFinalizerClassID));
    if (!exceptionTracker) {
        return 0;
    }

    weakReferenceId = ++_weakReferenceSequence;