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smart-city-digital-twin-mar…/smart-app-city/frontend/node_modules/hermes-parser/dist/HermesParserDecodeUTF8String.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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/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow strict
* @format
*/
'use strict';
/**
* Decode a UTF-8 encoded string from Hermes with a known length.
* Based on Emscripten's UTF8ToString with the following differences:
* - Always reads all bytes up to the given length, including null bytes. This
* means that we can decode strings that contain null bytes in the middle.
* - Allow UTF-8 encoded code points that are part of a surrogate pair, even though
* this is technically invalid UTF-8 that UTF8ToString would convert to 0xfffd.
*/
export default function HermesParserDecodeUTF8String(
ptrIn: number,
length: number,
heap: Uint8Array,
): string {
let ptr = ptrIn;
const endPtr = ptr + length;
let str = '';
while (ptr < endPtr) {
// ASCII characters fit in single byte code point
let u0 = heap[ptr++];
if (!(u0 & 0x80)) {
str += String.fromCharCode(u0);
continue;
}
// Two byte code point
const u1 = heap[ptr++] & 0x3f;
if ((u0 & 0xe0) === 0xc0) {
str += String.fromCharCode(((u0 & 0x1f) << 6) | u1);
continue;
}
const u2 = heap[ptr++] & 0x3f;
if ((u0 & 0xf0) === 0xe0) {
// Three byte code point
u0 = ((u0 & 0x0f) << 12) | (u1 << 6) | u2;
} else {
// Four byte code point
u0 = ((u0 & 0x07) << 18) | (u1 << 12) | (u2 << 6) | (heap[ptr++] & 0x3f);
}
if (u0 < 0x10000) {
// Code point fits into a single UTF-16 code unit
str += String.fromCharCode(u0);
} else {
// Code point does not fit into single UTF-16 code unit so convert to surrogate pair
u0 -= 0x10000;
str += String.fromCharCode(0xd800 | (u0 >> 10), 0xdc00 | (u0 & 0x3ff));
}
}
return str;
}