Modules

node_modules/@firebase/util/README.md

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+# @firebase/util
+
+_NOTE: This is specifically tailored for Firebase JS SDK usage, if you are not a
+member of the Firebase team, please avoid using this package_
+
+This is a wrapper of some Webchannel Features for the Firebase JS SDK.
+
+## Installation
+
+You can install this wrapper by running the following in your project:
+
+```bash
+$ npm install @firebase/util
+```
+
+## Usage
+
+**ES Modules**
+
+```javascript
+import { Deferred } from '@firebase/util';
+
+// Do stuff with Deferred or any of the other Utils you import
+```
+
+**CommonJS Modules**
+
+```javascript
+const utils = require('@firebase/util');
+
+// Do stuff with any of the re-exported `utils`
+```

node_modules/@firebase/util/dist/index.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export * from './src/assert';
+export * from './src/crypt';
+export * from './src/constants';
+export * from './src/deepCopy';
+export * from './src/deferred';
+export * from './src/environment';
+export * from './src/errors';
+export * from './src/json';
+export * from './src/jwt';
+export * from './src/obj';
+export * from './src/query';
+export * from './src/sha1';
+export * from './src/subscribe';
+export * from './src/validation';
+export * from './src/utf8';

node_modules/@firebase/util/dist/index.node.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export * from './src/assert';
+export * from './src/crypt';
+export * from './src/constants';
+export * from './src/deepCopy';
+export * from './src/deferred';
+export * from './src/environment';
+export * from './src/errors';
+export * from './src/json';
+export * from './src/jwt';
+export * from './src/obj';
+export * from './src/query';
+export * from './src/sha1';
+export * from './src/subscribe';
+export * from './src/validation';
+export * from './src/utf8';

node_modules/@firebase/util/dist/src/assert.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Throws an error if the provided assertion is falsy
+ */
+export declare const assert: (assertion: unknown, message: string) => void;
+/**
+ * Returns an Error object suitable for throwing.
+ */
+export declare const assertionError: (message: string) => Error;

node_modules/@firebase/util/dist/src/constants.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Firebase constants.  Some of these (@defines) can be overridden at compile-time.
+ */
+export declare const CONSTANTS: {
+    /**
+     * @define {boolean} Whether this is the client Node.js SDK.
+     */
+    NODE_CLIENT: boolean;
+    /**
+     * @define {boolean} Whether this is the Admin Node.js SDK.
+     */
+    NODE_ADMIN: boolean;
+    /**
+     * Firebase SDK Version
+     */
+    SDK_VERSION: string;
+};

node_modules/@firebase/util/dist/src/crypt.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+interface Base64 {
+    byteToCharMap_: {
+        [key: number]: string;
+    } | null;
+    charToByteMap_: {
+        [key: string]: number;
+    } | null;
+    byteToCharMapWebSafe_: {
+        [key: number]: string;
+    } | null;
+    charToByteMapWebSafe_: {
+        [key: string]: number;
+    } | null;
+    ENCODED_VALS_BASE: string;
+    readonly ENCODED_VALS: string;
+    readonly ENCODED_VALS_WEBSAFE: string;
+    HAS_NATIVE_SUPPORT: boolean;
+    encodeByteArray(input: number[] | Uint8Array, webSafe?: boolean): string;
+    encodeString(input: string, webSafe?: boolean): string;
+    decodeString(input: string, webSafe: boolean): string;
+    decodeStringToByteArray(input: string, webSafe: boolean): number[];
+    init_(): void;
+}
+export declare const base64: Base64;
+/**
+ * URL-safe base64 encoding
+ */
+export declare const base64Encode: (str: string) => string;
+/**
+ * URL-safe base64 decoding
+ *
+ * NOTE: DO NOT use the global atob() function - it does NOT support the
+ * base64Url variant encoding.
+ *
+ * @param str To be decoded
+ * @return Decoded result, if possible
+ */
+export declare const base64Decode: (str: string) => string | null;
+export {};

node_modules/@firebase/util/dist/src/deepCopy.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Do a deep-copy of basic JavaScript Objects or Arrays.
+ */
+export declare function deepCopy<T>(value: T): T;
+/**
+ * Copy properties from source to target (recursively allows extension
+ * of Objects and Arrays).  Scalar values in the target are over-written.
+ * If target is undefined, an object of the appropriate type will be created
+ * (and returned).
+ *
+ * We recursively copy all child properties of plain Objects in the source- so
+ * that namespace- like dictionaries are merged.
+ *
+ * Note that the target can be a function, in which case the properties in
+ * the source Object are copied onto it as static properties of the Function.
+ */
+export declare function deepExtend(target: unknown, source: unknown): unknown;

node_modules/@firebase/util/dist/src/deferred.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export declare class Deferred<R> {
+    promise: Promise<R>;
+    reject: (value?: unknown) => void;
+    resolve: (value?: unknown) => void;
+    constructor();
+    /**
+     * Our API internals are not promiseified and cannot because our callback APIs have subtle expectations around
+     * invoking promises inline, which Promises are forbidden to do. This method accepts an optional node-style callback
+     * and returns a node-style callback which will resolve or reject the Deferred's promise.
+     */
+    wrapCallback(callback?: (error?: unknown, value?: unknown) => void): (error: unknown, value?: unknown) => void;
+}

node_modules/@firebase/util/dist/src/environment.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns navigator.userAgent string or '' if it's not defined.
+ * @return user agent string
+ */
+export declare function getUA(): string;
+/**
+ * Detect Cordova / PhoneGap / Ionic frameworks on a mobile device.
+ *
+ * Deliberately does not rely on checking `file://` URLs (as this fails PhoneGap
+ * in the Ripple emulator) nor Cordova `onDeviceReady`, which would normally
+ * wait for a callback.
+ */
+export declare function isMobileCordova(): boolean;
+/**
+ * Detect Node.js.
+ *
+ * @return true if Node.js environment is detected.
+ */
+export declare function isNode(): boolean;
+/**
+ * Detect Browser Environment
+ */
+export declare function isBrowser(): boolean;
+export declare function isBrowserExtension(): boolean;
+/**
+ * Detect React Native.
+ *
+ * @return true if ReactNative environment is detected.
+ */
+export declare function isReactNative(): boolean;
+/** Detects Electron apps. */
+export declare function isElectron(): boolean;
+/** Detects Internet Explorer. */
+export declare function isIE(): boolean;
+/** Detects Universal Windows Platform apps. */
+export declare function isUWP(): boolean;
+/**
+ * Detect whether the current SDK build is the Node version.
+ *
+ * @return true if it's the Node SDK build.
+ */
+export declare function isNodeSdk(): boolean;

node_modules/@firebase/util/dist/src/errors.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview Standardized Firebase Error.
+ *
+ * Usage:
+ *
+ *   // Typescript string literals for type-safe codes
+ *   type Err =
+ *     'unknown' |
+ *     'object-not-found'
+ *     ;
+ *
+ *   // Closure enum for type-safe error codes
+ *   // at-enum {string}
+ *   var Err = {
+ *     UNKNOWN: 'unknown',
+ *     OBJECT_NOT_FOUND: 'object-not-found',
+ *   }
+ *
+ *   let errors: Map<Err, string> = {
+ *     'generic-error': "Unknown error",
+ *     'file-not-found': "Could not find file: {$file}",
+ *   };
+ *
+ *   // Type-safe function - must pass a valid error code as param.
+ *   let error = new ErrorFactory<Err>('service', 'Service', errors);
+ *
+ *   ...
+ *   throw error.create(Err.GENERIC);
+ *   ...
+ *   throw error.create(Err.FILE_NOT_FOUND, {'file': fileName});
+ *   ...
+ *   // Service: Could not file file: foo.txt (service/file-not-found).
+ *
+ *   catch (e) {
+ *     assert(e.message === "Could not find file: foo.txt.");
+ *     if (e.code === 'service/file-not-found') {
+ *       console.log("Could not read file: " + e['file']);
+ *     }
+ *   }
+ */
+export declare type ErrorMap<ErrorCode extends string> = {
+    readonly [K in ErrorCode]: string;
+};
+declare const ERROR_NAME = "FirebaseError";
+export interface StringLike {
+    toString(): string;
+}
+export interface ErrorData {
+    [key: string]: StringLike | undefined;
+}
+export interface FirebaseError extends Error, ErrorData {
+    readonly code: string;
+    readonly message: string;
+    readonly name: typeof ERROR_NAME;
+    readonly stack?: string;
+}
+export declare class FirebaseError extends Error {
+    readonly code: string;
+    readonly name: "FirebaseError";
+    constructor(code: string, message: string);
+}
+export declare class ErrorFactory<ErrorCode extends string, ErrorParams extends {
+    readonly [K in ErrorCode]?: ErrorData;
+} = {}> {
+    private readonly service;
+    private readonly serviceName;
+    private readonly errors;
+    constructor(service: string, serviceName: string, errors: ErrorMap<ErrorCode>);
+    create<K extends ErrorCode>(code: K, ...data: K extends keyof ErrorParams ? [ErrorParams[K]] : []): FirebaseError;
+}
+export {};

node_modules/@firebase/util/dist/src/json.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Evaluates a JSON string into a javascript object.
+ *
+ * @param {string} str A string containing JSON.
+ * @return {*} The javascript object representing the specified JSON.
+ */
+export declare function jsonEval(str: string): unknown;
+/**
+ * Returns JSON representing a javascript object.
+ * @param {*} data Javascript object to be stringified.
+ * @return {string} The JSON contents of the object.
+ */
+export declare function stringify(data: unknown): string;

node_modules/@firebase/util/dist/src/jwt.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+interface Claims {
+    [key: string]: {};
+}
+interface DecodedToken {
+    header: object;
+    claims: Claims;
+    data: object;
+    signature: string;
+}
+/**
+ * Decodes a Firebase auth. token into constituent parts.
+ *
+ * Notes:
+ * - May return with invalid / incomplete claims if there's no native base64 decoding support.
+ * - Doesn't check if the token is actually valid.
+ */
+export declare const decode: (token: string) => DecodedToken;
+interface DecodedToken {
+    header: object;
+    claims: Claims;
+    data: object;
+    signature: string;
+}
+/**
+ * Decodes a Firebase auth. token and checks the validity of its time-based claims. Will return true if the
+ * token is within the time window authorized by the 'nbf' (not-before) and 'iat' (issued-at) claims.
+ *
+ * Notes:
+ * - May return a false negative if there's no native base64 decoding support.
+ * - Doesn't check if the token is actually valid.
+ */
+export declare const isValidTimestamp: (token: string) => boolean;
+/**
+ * Decodes a Firebase auth. token and returns its issued at time if valid, null otherwise.
+ *
+ * Notes:
+ * - May return null if there's no native base64 decoding support.
+ * - Doesn't check if the token is actually valid.
+ */
+export declare const issuedAtTime: (token: string) => number | null;
+/**
+ * Decodes a Firebase auth. token and checks the validity of its format. Expects a valid issued-at time.
+ *
+ * Notes:
+ * - May return a false negative if there's no native base64 decoding support.
+ * - Doesn't check if the token is actually valid.
+ */
+export declare const isValidFormat: (token: string) => boolean;
+/**
+ * Attempts to peer into an auth token and determine if it's an admin auth token by looking at the claims portion.
+ *
+ * Notes:
+ * - May return a false negative if there's no native base64 decoding support.
+ * - Doesn't check if the token is actually valid.
+ */
+export declare const isAdmin: (token: string) => boolean;
+export {};

node_modules/@firebase/util/dist/src/obj.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export declare function contains<T extends object>(obj: T, key: string): boolean;
+export declare function safeGet<T extends object, K extends keyof T>(obj: T, key: K): T[K] | undefined;
+export declare function isEmpty(obj: object): obj is {};
+export declare function map<K extends string, V, U>(obj: {
+    [key in K]: V;
+}, fn: (value: V, key: K, obj: {
+    [key in K]: V;
+}) => U, contextObj?: unknown): {
+    [key in K]: U;
+};

node_modules/@firebase/util/dist/src/query.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Returns a querystring-formatted string (e.g. &arg=val&arg2=val2) from a
+ * params object (e.g. {arg: 'val', arg2: 'val2'})
+ * Note: You must prepend it with ? when adding it to a URL.
+ */
+export declare function querystring(querystringParams: {
+    [key: string]: string | number;
+}): string;
+/**
+ * Decodes a querystring (e.g. ?arg=val&arg2=val2) into a params object
+ * (e.g. {arg: 'val', arg2: 'val2'})
+ */
+export declare function querystringDecode(querystring: string): object;

node_modules/@firebase/util/dist/src/sha1.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @fileoverview SHA-1 cryptographic hash.
+ * Variable names follow the notation in FIPS PUB 180-3:
+ * http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf.
+ *
+ * Usage:
+ *   var sha1 = new sha1();
+ *   sha1.update(bytes);
+ *   var hash = sha1.digest();
+ *
+ * Performance:
+ *   Chrome 23:   ~400 Mbit/s
+ *   Firefox 16:  ~250 Mbit/s
+ *
+ */
+/**
+ * SHA-1 cryptographic hash constructor.
+ *
+ * The properties declared here are discussed in the above algorithm document.
+ * @constructor
+ * @final
+ * @struct
+ */
+export declare class Sha1 {
+    /**
+     * Holds the previous values of accumulated variables a-e in the compress_
+     * function.
+     * @private
+     */
+    private chain_;
+    /**
+     * A buffer holding the partially computed hash result.
+     * @private
+     */
+    private buf_;
+    /**
+     * An array of 80 bytes, each a part of the message to be hashed.  Referred to
+     * as the message schedule in the docs.
+     * @private
+     */
+    private W_;
+    /**
+     * Contains data needed to pad messages less than 64 bytes.
+     * @private
+     */
+    private pad_;
+    /**
+     * @private {number}
+     */
+    private inbuf_;
+    /**
+     * @private {number}
+     */
+    private total_;
+    blockSize: number;
+    constructor();
+    reset(): void;
+    /**
+     * Internal compress helper function.
+     * @param buf Block to compress.
+     * @param offset Offset of the block in the buffer.
+     * @private
+     */
+    compress_(buf: number[] | Uint8Array | string, offset?: number): void;
+    update(bytes?: number[] | Uint8Array | string, length?: number): void;
+    /** @override */
+    digest(): number[];
+}

node_modules/@firebase/util/dist/src/subscribe.d.ts

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+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export declare type NextFn<T> = (value: T) => void;
+export declare type ErrorFn = (error: Error) => void;
+export declare type CompleteFn = () => void;
+export interface Observer<T> {
+    next: NextFn<T>;
+    error: ErrorFn;
+    complete: CompleteFn;
+}
+export declare type PartialObserver<T> = Partial<Observer<T>>;
+export declare type Unsubscribe = () => void;
+/**
+ * The Subscribe interface has two forms - passing the inline function
+ * callbacks, or a object interface with callback properties.
+ */
+export interface Subscribe<T> {
+    (next?: NextFn<T>, error?: ErrorFn, complete?: CompleteFn): Unsubscribe;
+    (observer: PartialObserver<T>): Unsubscribe;
+}
+export interface Observable<T> {
+    subscribe: Subscribe<T>;
+}
+export declare type Executor<T> = (observer: Observer<T>) => void;
+/**
+ * Helper to make a Subscribe function (just like Promise helps make a
+ * Thenable).
+ *
+ * @param executor Function which can make calls to a single Observer
+ *     as a proxy.
+ * @param onNoObservers Callback when count of Observers goes to zero.
+ */
+export declare function createSubscribe<T>(executor: Executor<T>, onNoObservers?: Executor<T>): Subscribe<T>;
+/** Turn synchronous function into one called asynchronously. */
+export declare function async(fn: Function, onError?: ErrorFn): Function;

node_modules/@firebase/util/dist/src/utf8.d.ts

@@ -0,0 +1,27 @@
+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @param {string} str
+ * @return {Array}
+ */
+export declare const stringToByteArray: (str: string) => number[];
+/**
+ * Calculate length without actually converting; useful for doing cheaper validation.
+ * @param {string} str
+ * @return {number}
+ */
+export declare const stringLength: (str: string) => number;

node_modules/@firebase/util/dist/src/validation.d.ts

@@ -0,0 +1,44 @@
+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Check to make sure the appropriate number of arguments are provided for a public function.
+ * Throws an error if it fails.
+ *
+ * @param fnName The function name
+ * @param minCount The minimum number of arguments to allow for the function call
+ * @param maxCount The maximum number of argument to allow for the function call
+ * @param argCount The actual number of arguments provided.
+ */
+export declare const validateArgCount: (fnName: string, minCount: number, maxCount: number, argCount: number) => void;
+/**
+ * Generates a string to prefix an error message about failed argument validation
+ *
+ * @param fnName The function name
+ * @param argumentNumber The index of the argument
+ * @param optional Whether or not the argument is optional
+ * @return The prefix to add to the error thrown for validation.
+ */
+export declare function errorPrefix(fnName: string, argumentNumber: number, optional: boolean): string;
+/**
+ * @param fnName
+ * @param argumentNumber
+ * @param namespace
+ * @param optional
+ */
+export declare function validateNamespace(fnName: string, argumentNumber: number, namespace: string, optional: boolean): void;
+export declare function validateCallback(fnName: string, argumentNumber: number, callback: Function, optional: boolean): void;
+export declare function validateContextObject(fnName: string, argumentNumber: number, context: unknown, optional: boolean): void;

node_modules/@firebase/util/dist/test/base64.test.d.ts

@@ -0,0 +1 @@
+export {};

node_modules/@firebase/util/dist/test/deepCopy.test.d.ts

@@ -0,0 +1 @@
+export {};

node_modules/@firebase/util/dist/test/errors.test.d.ts

@@ -0,0 +1 @@
+export {};

node_modules/@firebase/util/dist/test/subscribe.test.d.ts

@@ -0,0 +1,17 @@
+/**
+ * @license
+ * Copyright 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+export {};

node_modules/@firebase/util/package.json

@@ -0,0 +1,89 @@
+{
+  "_from": "@firebase/util@0.2.39",
+  "_id": "@firebase/util@0.2.39",
+  "_inBundle": false,
+  "_integrity": "sha512-hxbQJ9TkFzd6g8/ZcWBjdrxjxS0jYnR1EN3i1ah7i3KtvuxAtwNJ04YRf0QhKhCoitTkJ1Yn3cGb0kFnGtJVRA==",
+  "_location": "/@firebase/util",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "@firebase/util@0.2.39",
+    "name": "@firebase/util",
+    "escapedName": "@firebase%2futil",
+    "scope": "@firebase",
+    "rawSpec": "0.2.39",
+    "saveSpec": null,
+    "fetchSpec": "0.2.39"
+  },
+  "_requiredBy": [
+    "/@firebase/analytics",
+    "/@firebase/app",
+    "/@firebase/component",
+    "/@firebase/database",
+    "/@firebase/firestore",
+    "/@firebase/installations",
+    "/@firebase/messaging",
+    "/@firebase/performance",
+    "/@firebase/remote-config",
+    "/@firebase/storage",
+    "/firebase"
+  ],
+  "_resolved": "https://registry.npmjs.org/@firebase/util/-/util-0.2.39.tgz",
+  "_shasum": "4387b12c315857081f595bba7229b0cabadb754f",
+  "_spec": "@firebase/util@0.2.39",
+  "_where": "C:\\Users\\matia\\Documents\\GitHub\\Musix-V3\\node_modules\\firebase",
+  "author": {
+    "name": "Firebase",
+    "email": "firebase-support@google.com",
+    "url": "https://firebase.google.com/"
+  },
+  "browser": "dist/index.cjs.js",
+  "bugs": {
+    "url": "https://github.com/firebase/firebase-js-sdk/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "tslib": "1.10.0"
+  },
+  "deprecated": false,
+  "description": "_NOTE: This is specifically tailored for Firebase JS SDK usage, if you are not a member of the Firebase team, please avoid using this package_",
+  "devDependencies": {
+    "rollup": "1.28.0",
+    "rollup-plugin-typescript2": "0.25.3",
+    "typescript": "3.7.3"
+  },
+  "esm2017": "dist/index.esm2017.js",
+  "files": [
+    "dist"
+  ],
+  "homepage": "https://github.com/firebase/firebase-js-sdk#readme",
+  "license": "Apache-2.0",
+  "main": "dist/index.node.cjs.js",
+  "module": "dist/index.esm.js",
+  "name": "@firebase/util",
+  "nyc": {
+    "extension": [
+      ".ts"
+    ],
+    "reportDir": "./coverage/node"
+  },
+  "repository": {
+    "directory": "packages/util",
+    "type": "git",
+    "url": "git+https://github.com/firebase/firebase-js-sdk.git"
+  },
+  "scripts": {
+    "build": "rollup -c",
+    "dev": "rollup -c -w",
+    "lint": "eslint -c .eslintrc.js '**/*.ts' --ignore-path '../../.gitignore'",
+    "lint:fix": "eslint --fix -c .eslintrc.js '**/*.ts' --ignore-path '../../.gitignore'",
+    "prepare": "yarn build",
+    "test": "yarn type-check && run-p lint test:browser test:node",
+    "test:browser": "karma start --single-run",
+    "test:node": "TS_NODE_CACHE=NO TS_NODE_COMPILER_OPTIONS='{\"module\":\"commonjs\"}' nyc --reporter lcovonly -- mocha test/**/*.test.* --opts ../../config/mocha.node.opts",
+    "type-check": "tsc -p . --noEmit"
+  },
+  "typings": "dist/index.d.ts",
+  "version": "0.2.39"
+}