Function onObjectBegin

valdi/src/valdi/quickjs/QuickJSJavaScriptContext.cpp:1071–1116

    double number = 0;

    if (!checkCall(exceptionTracker, JS_ToFloat64(_context, &number, fromValdiJSValue(value)))) {
        return 0;
    }

    return number;
}

int32_t QuickJSJavaScriptContext::valueToInt(const Valdi::JSValue& value, Valdi::JSExceptionTracker& exceptionTracker) {
    auto guard = _threadAccessChecker.guard();
    int32_t number = 0;

    if (!checkCall(exceptionTracker, JS_ToInt32(_context, &number, fromValdiJSValue(value)))) {
        return 0;
    }

    return number;
}

Valdi::Ref<Valdi::RefCountable> QuickJSJavaScriptContext::valueToWrappedObject(
    const Valdi::JSValue& value, Valdi::JSExceptionTracker& /*exceptionTracker*/) {
    auto guard = _threadAccessChecker.guard();
    return Valdi::unwrapNativeClassInstanceData(getObjectWrappedObject(fromValdiJSValue(value)));
}

Valdi::Ref<Valdi::JSFunction> QuickJSJavaScriptContext::valueToFunction(
    const Valdi::JSValue& value, Valdi::JSExceptionTracker& /*exceptionTracker*/) {
    auto guard = _threadAccessChecker.guard();
    return Valdi::Ref(getObjectCallable(fromValdiJSValue(value)));
}

Valdi::JSTypedArray QuickJSJavaScriptContext::valueToTypedArray(const Valdi::JSValue& value,
                                                                Valdi::JSExceptionTracker& exceptionTracker) {
    auto guard = _threadAccessChecker.guard();
    auto jsValue = fromValdiJSValue(value);

    if (JS_IsArrayBuffer(_context, jsValue) != 0) {
        size_t size = 0;
        auto* buffer = JS_GetArrayBuffer(_context, &size, jsValue);

        if (!checkCall(exceptionTracker, buffer == nullptr ? -1 : 0)) {
            return Valdi::JSTypedArray();
        }

        return Valdi::JSTypedArray(Valdi::ArrayBuffer, buffer, size, toUnretainedJSValueRef(jsValue));
    } else {
        auto arrayType = JS_GetTypedArrayType(_context, jsValue);
        if (arrayType == JS_TYPED_ARRAY_NONE) {
            checkCallAndGetValue(exceptionTracker, JS_ThrowTypeError(_context, "value is not a typed array"));
            return Valdi::JSTypedArray();