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• [DIR] ..
• [FILE] Constants.ts
• [FILE] Constants.types.ts
• [FILE] ExponentConstants.ts
• [FILE] ExponentConstants.web.ts

Просмотр файла: Constants.ts

import { CodedError, NativeModulesProxy } from 'expo-modules-core';
import { Platform, NativeModules } from 'react-native';

import {
  AndroidManifest,
  AppManifest,
  AppOwnership,
  Constants,
  ExecutionEnvironment,
  IOSManifest,
  Manifest,
  NativeConstants,
  PlatformManifest,
  UserInterfaceIdiom,
  WebManifest,
} from './Constants.types';
import ExponentConstants from './ExponentConstants';

export {
  AndroidManifest,
  AppOwnership,
  Constants,
  ExecutionEnvironment,
  IOSManifest,
  NativeConstants,
  PlatformManifest,
  UserInterfaceIdiom,
  WebManifest,
};

if (!ExponentConstants) {
  console.warn(
    "No native ExponentConstants module found, are you sure the expo-constants's module is linked properly?"
  );
}

let rawManifest: AppManifest | Manifest | null = null;
// If expo-updates defines a non-empty manifest, prefer that one
if (NativeModulesProxy.ExpoUpdates) {
  let updatesManifest;
  if (NativeModulesProxy.ExpoUpdates.manifest) {
    updatesManifest = NativeModulesProxy.ExpoUpdates.manifest;
  } else if (NativeModulesProxy.ExpoUpdates.manifestString) {
    updatesManifest = JSON.parse(NativeModulesProxy.ExpoUpdates.manifestString);
  }
  if (updatesManifest && Object.keys(updatesManifest).length > 0) {
    rawManifest = updatesManifest;
  }
}

// If dev-launcher defines a non-empty manifest, prefer that one
if (NativeModules.EXDevLauncher) {
  let devLauncherManifest;
  if (NativeModules.EXDevLauncher.manifestString) {
    devLauncherManifest = JSON.parse(NativeModules.EXDevLauncher.manifestString);
  }

  if (devLauncherManifest && Object.keys(devLauncherManifest).length > 0) {
    rawManifest = devLauncherManifest;
  }
}

// Fall back to ExponentConstants.manifest if we don't have one from Updates
if (!rawManifest && ExponentConstants && ExponentConstants.manifest) {
  rawManifest = ExponentConstants.manifest;
  // On Android we pass the manifest in JSON form so this step is necessary
  if (typeof rawManifest === 'string') {
    rawManifest = JSON.parse(rawManifest);
  }
}

const { name, appOwnership, ...nativeConstants } = (ExponentConstants || {}) as any;

let warnedAboutDeviceYearClass = false;
let warnedAboutIosModel = false;

const constants: Constants = {
  ...nativeConstants,
  // Ensure this is null in bare workflow
  appOwnership: appOwnership ?? null,
};

Object.defineProperties(constants, {
  // Deprecated field
  deviceYearClass: {
    get() {
      if (!warnedAboutDeviceYearClass) {
        console.warn(
          `Constants.deviceYearClass has been deprecated in favor of expo-device's Device.deviceYearClass property. This API will be removed in SDK 45.`
        );
        warnedAboutDeviceYearClass = true;
      }
      return nativeConstants.deviceYearClass;
    },
    enumerable: false,
  },
  installationId: {
    get() {
      return nativeConstants.installationId;
    },
    enumerable: false,
  },
  /**
   * Use `manifest` property by default.
   * This property is only used for internal purposes.
   * It behaves similarly to the original one, but suppresses warning upon no manifest available.
   * `expo-asset` uses it to prevent users from seeing mentioned warning.
   */
  __unsafeNoWarnManifest: {
    get(): AppManifest | Manifest | null {
      const maybeManifest = getManifest(true);
      if (!maybeManifest || !isAppManifest(maybeManifest)) {
        return null;
      }
      return maybeManifest;
    },
    enumerable: false,
  },
  __unsafeNoWarnManifest2: {
    get(): Manifest | null {
      const maybeManifest = getManifest(true);
      if (!maybeManifest || !isManifest(maybeManifest)) {
        return null;
      }
      return maybeManifest;
    },
    enumerable: false,
  },
  manifest: {
    get(): AppManifest | null {
      const maybeManifest = getManifest();
      if (!maybeManifest || !isAppManifest(maybeManifest)) {
        return null;
      }
      return maybeManifest;
    },
    enumerable: true,
  },
  manifest2: {
    get(): Manifest | null {
      const maybeManifest = getManifest();
      if (!maybeManifest || !isManifest(maybeManifest)) {
        return null;
      }
      return maybeManifest;
    },
    enumerable: true,
  },
  __rawManifest_TEST: {
    get(): AppManifest | Manifest | null {
      return rawManifest;
    },
    set(value: AppManifest | Manifest | null) {
      rawManifest = value;
    },
    enumerable: false,
  },
});

// Add deprecation warning for `platform.ios.model`
if (constants?.platform?.ios) {
  const originalModel = nativeConstants.platform.ios.model;
  Object.defineProperty(constants.platform.ios, 'model', {
    get() {
      if (!warnedAboutIosModel) {
        console.warn(
          `Constants.platform.ios.model has been deprecated in favor of expo-device's Device.modelName property. This API will be removed in SDK 45.`
        );
        warnedAboutIosModel = true;
      }
      return originalModel;
    },
    enumerable: false,
  });
}

function isAppManifest(manifest: AppManifest | Manifest): manifest is AppManifest {
  return !isManifest(manifest);
}

function isManifest(manifest: AppManifest | Manifest): manifest is Manifest {
  return 'metadata' in manifest;
}

function getManifest(suppressWarning = false): AppManifest | Manifest | null {
  if (!rawManifest) {
    const invalidManifestType = rawManifest === null ? 'null' : 'undefined';
    if (
      nativeConstants.executionEnvironment === ExecutionEnvironment.Bare &&
      Platform.OS !== 'web'
    ) {
      if (!suppressWarning) {
        console.warn(
          `Constants.manifest is ${invalidManifestType} because the embedded app.config could not be read. Ensure that you have installed the expo-constants build scripts if you need to read from Constants.manifest.`
        );
      }
    } else if (
      nativeConstants.executionEnvironment === ExecutionEnvironment.StoreClient ||
      nativeConstants.executionEnvironment === ExecutionEnvironment.Standalone
    ) {
      // If we somehow get here, this is a truly exceptional state to be in.
      // Constants.manifest should *always* be defined in those contexts.
      throw new CodedError(
        'ERR_CONSTANTS_MANIFEST_UNAVAILABLE',
        `Constants.manifest is ${invalidManifestType}, must be an object.`
      );
    }
  }
  return rawManifest;
}

export default constants as Constants;

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