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smart-city-digital-twin-mar…/smart-app-city/frontend/node_modules/graphql/jsutils/instanceOf.js.flow
Eric FELIXINE e30ae8ed09 feat(smart-app): implement complete mobile app MVP
- App.tsx: full navigation (Auth stack + Main tabs with 5 screens)
- Auth: LoginScreen, RegisterScreen, ForgotPasswordScreen
- HomeScreen: dashboard with IoT metrics, weather widget, alerts, quick actions, sensors
- MapScreen: interactive map with layer toggles (6 layers)
- MarketplaceScreen: categories (6), products (5), search
- ChatScreen: AI chat with quick prompts (4), bot responses
- ProfileScreen: user info, stats, menu (9 items), logout
- AlertsScreen: alert list with severity, acknowledge
- SensorsScreen: sensor list with type filters (6 types), search
- ZonesScreen: zone cards with stats
- SettingsScreen: language picker (FR/EN/ES/DE), privacy, about
- Stores: iotStore (sensors, zones, alerts), notificationStore, uiStore + i18n
- Hooks: useSensors, useAlerts, useNotifications, useLocation
- Components: Card, Button, LoadingSpinner, ErrorBoundary, Header
- Services: iotService, notificationService (with axios API client)
- Utils: formatters (temp, AQI, noise, dates), validators (email, password, IBAN)
- Theme: colors.ts with full design system (Blue Ocean palette)
- Ditto: fixed MongoDB connection, new JWT secrets, official gateway image
2026-06-01 18:00:35 -04:00

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// @flow strict
import inspect from './inspect';
/**
* A replacement for instanceof which includes an error warning when multi-realm
* constructors are detected.
*/
declare function instanceOf(
value: mixed,
constructor: mixed,
): boolean %checks(value instanceof constructor);
// See: https://expressjs.com/en/advanced/best-practice-performance.html#set-node_env-to-production
// See: https://webpack.js.org/guides/production/
export default process.env.NODE_ENV === 'production'
? // istanbul ignore next (See: 'https://github.com/graphql/graphql-js/issues/2317')
// eslint-disable-next-line no-shadow
function instanceOf(value: mixed, constructor: mixed): boolean {
return value instanceof constructor;
}
: // eslint-disable-next-line no-shadow
function instanceOf(value: any, constructor: any): boolean {
if (value instanceof constructor) {
return true;
}
if (typeof value === 'object' && value !== null) {
const className = constructor.prototype[Symbol.toStringTag];
const valueClassName =
// We still need to support constructor's name to detect conflicts with older versions of this library.
Symbol.toStringTag in value
? value[Symbol.toStringTag]
: value.constructor?.name;
if (className === valueClassName) {
const stringifiedValue = inspect(value);
throw new Error(
`Cannot use ${className} "${stringifiedValue}" from another module or realm.
Ensure that there is only one instance of "graphql" in the node_modules
directory. If different versions of "graphql" are the dependencies of other
relied on modules, use "resolutions" to ensure only one version is installed.
https://yarnpkg.com/en/docs/selective-version-resolutions
Duplicate "graphql" modules cannot be used at the same time since different
versions may have different capabilities and behavior. The data from one
version used in the function from another could produce confusing and
spurious results.`,
);
}
}
return false;
};