docs: Document CRC32CValidator (#2006)

* docs: Document `CRC32CValidator` in `Storage`

* fix: `@private` value warning

* docs: Update parameter names

* docs: `CRC32CValidator` documentation

Author: d-goog

src/bucket.ts

@@ -391,6 +391,70 @@ export enum BucketExceptionMessages {
   SUPPLY_NOTIFICATION_ID = 'You must supply a notification ID.',
 }
 
+/**
+ * @callback Crc32cGeneratorToStringCallback
+ * A method returning the CRC32C as a base64-encoded string.
+ *
+ * @returns {string}
+ *
+ * @example
+ * Hashing the string 'data' should return 'rth90Q=='
+ *
+ * ```js
+ * const buffer = Buffer.from('data');
+ * crc32c.update(buffer);
+ * crc32c.toString(); // 'rth90Q=='
+ * ```
+ **/
+/**
+ * @callback Crc32cGeneratorValidateCallback
+ * A method validating a base64-encoded CRC32C string.
+ *
+ * @param {string} [value] base64-encoded CRC32C string to validate
+ * @returns {boolean}
+ *
+ * @example
+ * Should return `true` if the value matches, `false` otherwise
+ *
+ * ```js
+ * const buffer = Buffer.from('data');
+ * crc32c.update(buffer);
+ * crc32c.validate('DkjKuA=='); // false
+ * crc32c.validate('rth90Q=='); // true
+ * ```
+ **/
+/**
+ * @callback Crc32cGeneratorUpdateCallback
+ * A method for passing `Buffer`s for CRC32C generation.
+ *
+ * @param {Buffer} [data] data to update CRC32C value with
+ * @returns {undefined}
+ *
+ * @example
+ * Hashing buffers from 'some ' and 'text\n'
+ *
+ * ```js
+ * const buffer1 = Buffer.from('some ');
+ * crc32c.update(buffer1);
+ *
+ * const buffer2 = Buffer.from('text\n');
+ * crc32c.update(buffer2);
+ *
+ * crc32c.toString(); // 'DkjKuA=='
+ * ```
+ **/
+/**
+ * @typedef {object} CRC32CValidator
+ * @property {Crc32cGeneratorToStringCallback}
+ * @property {Crc32cGeneratorValidateCallback}
+ * @property {Crc32cGeneratorUpdateCallback}
+ */
+/**
+ * A function that generates a CRC32C Validator. Defaults to {@link CRC32C}
+ *
+ * @name Bucket#crc32cGenerator
+ * @type {CRC32CValidator}
+ */
 /**
  * Get and set IAM policies for your bucket.
  *
@@ -708,7 +772,7 @@ class Bucket extends ServiceObject {
         },
       },
       /**
-       * @typedef {object} DeleteBucketOptions Configuration options.
+       * IamDeleteBucketOptions Configuration options.
        * @property {boolean} [ignoreNotFound = false] Ignore an error if
        *     the bucket does not exist.
        * @property {string} [userProject] The ID of the project which will be

src/crc32c.ts

@@ -91,7 +91,7 @@ interface CRC32CValidator {
    * crc32c.validate('rth90Q=='); // true
    * ```
    */
-  validate: (o: string) => boolean;
+  validate: (value: string) => boolean;
   /**
    * A method for passing `Buffer`s for CRC32C generation.
    *
@@ -108,7 +108,7 @@ interface CRC32CValidator {
    * crc32c.toString(); // 'DkjKuA=='
    * ```
    */
-  update: (b: Buffer) => void;
+  update: (data: Buffer) => void;
 }
 
 /** A function that generates a CRC32C Validator */

src/file.ts

@@ -278,13 +278,11 @@ export enum ActionToHTTPMethod {
 }
 
 /**
- * @const {string}
  * @private
  */
 export const STORAGE_POST_POLICY_BASE_URL = 'https://storage.googleapis.com';
 
 /**
- * @const {RegExp}
  * @private
  */
 const GS_URL_REGEXP = /^gs:\/\/([a-z0-9_.-]+)\/(.+)$/;
@@ -500,6 +498,68 @@ class File extends ServiceObject<File> {
    * @name File#name
    * @type {string}
    */
+  /**
+   * @callback Crc32cGeneratorToStringCallback
+   * A method returning the CRC32C as a base64-encoded string.
+   *
+   * @returns {string}
+   *
+   * @example
+   * Hashing the string 'data' should return 'rth90Q=='
+   *
+   * ```js
+   * const buffer = Buffer.from('data');
+   * crc32c.update(buffer);
+   * crc32c.toString(); // 'rth90Q=='
+   * ```
+   **/
+  /**
+   * @callback Crc32cGeneratorValidateCallback
+   * A method validating a base64-encoded CRC32C string.
+   *
+   * @param {string} [value] base64-encoded CRC32C string to validate
+   * @returns {boolean}
+   *
+   * @example
+   * Should return `true` if the value matches, `false` otherwise
+   *
+   * ```js
+   * const buffer = Buffer.from('data');
+   * crc32c.update(buffer);
+   * crc32c.validate('DkjKuA=='); // false
+   * crc32c.validate('rth90Q=='); // true
+   * ```
+   **/
+  /**
+   * @callback Crc32cGeneratorUpdateCallback
+   * A method for passing `Buffer`s for CRC32C generation.
+   *
+   * @param {Buffer} [data] data to update CRC32C value with
+   * @returns {undefined}
+   *
+   * @example
+   * Hashing buffers from 'some ' and 'text\n'
+   *
+   * ```js
+   * const buffer1 = Buffer.from('some ');
+   * crc32c.update(buffer1);
+   *
+   * const buffer2 = Buffer.from('text\n');
+   * crc32c.update(buffer2);
+   *
+   * crc32c.toString(); // 'DkjKuA=='
+   * ```
+   **/
+  /**
+   * @typedef {object} CRC32CValidator
+   * @property {Crc32cGeneratorToStringCallback}
+   * @property {Crc32cGeneratorValidateCallback}
+   * @property {Crc32cGeneratorUpdateCallback}
+   */
+  /**
+   * @callback Crc32cGeneratorCallback
+   * @returns {CRC32CValidator}
+   */
   /**
    * @typedef {object} FileOptions Options passed to the File constructor.
    * @property {string} [encryptionKey] A custom encryption key.
@@ -509,6 +569,7 @@ class File extends ServiceObject<File> {
    *     usable only by enabled projects.
    * @property {string} [userProject] The ID of the project which will be
    *     billed for all requests made from File object.
+   * @property {Crc32cGeneratorCallback} [callback] A function that generates a CRC32C Validator. Defaults to {@link CRC32C}
    */
   /**
    * Constructs a file object.

src/storage.ts

@@ -486,6 +486,68 @@ export class Storage extends Service {
 
   retryOptions: RetryOptions;
 
+  /**
+   * @callback Crc32cGeneratorToStringCallback
+   * A method returning the CRC32C as a base64-encoded string.
+   *
+   * @returns {string}
+   *
+   * @example
+   * Hashing the string 'data' should return 'rth90Q=='
+   *
+   * ```js
+   * const buffer = Buffer.from('data');
+   * crc32c.update(buffer);
+   * crc32c.toString(); // 'rth90Q=='
+   * ```
+   **/
+  /**
+   * @callback Crc32cGeneratorValidateCallback
+   * A method validating a base64-encoded CRC32C string.
+   *
+   * @param {string} [value] base64-encoded CRC32C string to validate
+   * @returns {boolean}
+   *
+   * @example
+   * Should return `true` if the value matches, `false` otherwise
+   *
+   * ```js
+   * const buffer = Buffer.from('data');
+   * crc32c.update(buffer);
+   * crc32c.validate('DkjKuA=='); // false
+   * crc32c.validate('rth90Q=='); // true
+   * ```
+   **/
+  /**
+   * @callback Crc32cGeneratorUpdateCallback
+   * A method for passing `Buffer`s for CRC32C generation.
+   *
+   * @param {Buffer} [data] data to update CRC32C value with
+   * @returns {undefined}
+   *
+   * @example
+   * Hashing buffers from 'some ' and 'text\n'
+   *
+   * ```js
+   * const buffer1 = Buffer.from('some ');
+   * crc32c.update(buffer1);
+   *
+   * const buffer2 = Buffer.from('text\n');
+   * crc32c.update(buffer2);
+   *
+   * crc32c.toString(); // 'DkjKuA=='
+   * ```
+   **/
+  /**
+   * @typedef {object} CRC32CValidator
+   * @property {Crc32cGeneratorToStringCallback}
+   * @property {Crc32cGeneratorValidateCallback}
+   * @property {Crc32cGeneratorUpdateCallback}
+   */
+  /**
+   * @callback Crc32cGeneratorCallback
+   * @returns {CRC32CValidator}
+   */
   /**
    * @typedef {object} StorageOptions
    * @property {string} [projectId] The project ID from the Google Developer's
@@ -536,6 +598,7 @@ export class Storage extends Service {
    * @property {object[]} [interceptors_] Array of custom request interceptors to be returned in the order they were assigned.
    * @property {string} [apiEndpoint = storage.google.com] The API endpoint of the service used to make requests.
    * @property {boolean} [useAuthWithCustomEndpoint = false] Controls whether or not to use authentication when using a custom endpoint.
+   * @property {Crc32cGeneratorCallback} [callback] A function that generates a CRC32C Validator. Defaults to {@link CRC32C}
    */
   /**
    * Constructs the Storage client.