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4914 lines (4788 loc) · 81.7 KB
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/* eslint-disable stdlib/jsdoc-doctest-marker, stdlib/jsdoc-doctest, stdlib/jsdoc-example-require-spacing, stdlib/jsdoc-no-tabs */
/**
* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* 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.
*/
'use strict';
/**
* ESLint rules specific to stdlib.
*
* @namespace rules
*/
var rules = {};
/**
* Require that comments start with an uppercase letter.
*
* @name capitalized-comments
* @memberof rules
* @type {string}
*
* @example
* // Bad...
* function square( x ) {
* var out;
*
* // square the number:
* out = x*x;
* return out;
* }
*
* @example
* // Good...
* function square( x ) {
* var out;
*
* // Square the number:
* out = x*x;
* return out;
* }
*/
rules[ 'stdlib/capitalized-comments' ] = [ 'warn', {
'whitelist': [
'eslint',
'eslint-enable',
'eslint-enable-next-line',
'eslint-disable',
'eslint-disable-next-line',
'returns',
'e.g.,',
'ndarray',
'rehype',
'remark',
'stdlib',
'throws'
]
}];
/**
* Enforce that return annotation values match actual output.
*
* @name doctest
* @memberof rules
* @type {string}
* @default 'off'
*
* @example
* // Bad...
* var x = 3.0;
* // returns 2.0
*
* console.log( 'Hello World' );
* // returns 'hello world'
*
* @example
* // Good...
* var x = 3.0;
* // returns 3.0
*
* console.log( 'Hello World' );
* // returns 'Hello World'
*/
rules[ 'stdlib/doctest' ] = 'off';
/**
* Enforce marker style conventions for return annotations.
*
* @name doctest-marker
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
* var x = 3.0;
* // => 3.0
*
* console.log( 'Hello World' );
* // returns 'Hello World'
*
* // => null
*
* @example
* // Good...
* var x = 3.0;
* // returns 3.0
*
* console.log( 'Hello World' );
* // => 'Hello World'
*/
rules[ 'stdlib/doctest-marker' ] = 'error';
/* eslint-disable stdlib/jsdoc-doctest-quote-props */
/**
* Enforce that property names in return annotations are quoted.
*
* @name doctest-quote-props
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
* var value = {
* 'a': 1,
* 'b': true,
* 'c': [ 1, 2, 3 ]
* };
* var out = copy( value );
* /* returns
* {
* a: 1,
* b: true,
* c: [ 1, 2, 3 ]
* }
* *\/
*
* @example
* // Good...
* var value = {
* 'a': 1,
* 'b': true,
* 'c': [ 1, 2, 3 ]
* };
* var out = copy( value );
* /* returns
* {
* 'a': 1,
* 'b': true,
* 'c': [ 1, 2, 3 ]
* }
* *\/
*/
rules[ 'stdlib/doctest-quote-props' ] = 'error';
/* eslint-enable stdlib/jsdoc-doctest-quote-props */
/**
* Require an empty line before single-line comments.
*
* @name empty-line-before-comment
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
* function square( x ) {
* var out;
* // Square the number:
* out = x*x;
* return out;
* }
*
* @example
* // Good...
* function square( x ) {
* var out;
*
* // Square the number:
* out = x*x;
* return out;
* }
*/
rules[ 'stdlib/empty-line-before-comment' ] = 'error';
/**
* Disallow spaces between an opening parenthesis or bracket and a nested object or array expression at the end of a line.
*
* @name eol-open-bracket-spacing
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
* var log = require( '@stdlib/console/log' );
*
* log( {
* 'foo': true
* });
*
* log( [
* 1,
* 2,
* 3
* ]);
*
* log( [ {
* 'bar': true
* }]);
*
* @example
* // Good...
* var log = require( '@stdlib/console/log' );
*
* log({
* 'foo': true
* });
*
* log([
* 1,
* 2,
* 3
* ]);
*
* log([{
* 'bar': true
* }]);
*/
rules[ 'stdlib/eol-open-bracket-spacing' ] = 'error';
/**
* Require blockquotes to have `2` character indentation.
*
* @name jsdoc-blockquote-indentation
* @memberof rules
* @type {Array}
* @default [ 'error', 2 ]
* @see [blockquote-indentation]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-blockquote-indentation}
*
* @example
* // Bad...
*
* /**
* * Squares a number.
* *
* * > This is a blockquote.
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a number.
* *
* * > This is a blockquote.
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-blockquote-indentation' ] = [ 'error', 2 ];
/**
* Require checkboxes to be either empty (unchecked) or have an `x` (checked).
*
* @name jsdoc-checkbox-character-style
* @memberof rules
* @type {Array}
* @see [checkbox-character-style]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-checkbox-character-style}
*
* @example
* // Bad...
*
* /**
* * Squares a number.
* *
* * - [X] Item
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a number.
* *
* * - [x] Item
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-checkbox-character-style' ] = [
'error',
{
'checked': 'x',
'unchecked': ' '
}
];
/**
* Prevent checkboxes being followed by too much whitespace.
*
* @name jsdoc-checkbox-content-indent
* @memberof rules
* @type {string}
* @default 'error'
* @see [checkbox-content-indent]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-checkbox-content-indent}
*
* @example
* // Bad...
*
* /**
* * Squares a number.
* *
* * - [ ] Item
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a number.
* *
* * - [ ] Item
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-checkbox-content-indent' ] = 'error';
/**
* Require `fenced` code block style.
*
* @name jsdoc-code-block-style
* @memberof rules
* @type {Array}
* @default [ 'error', 'fenced' ]
* @see [code-block-style]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-code-block-style}
*
* @example
* // Bad...
*
* /**
* * Squares a number.
* *
* * y = x;
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a number.
* *
* * ```javascript
* * y = x;
* * ```
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-code-block-style' ] = [ 'error', 'fenced' ];
/**
* Require fenced code blocks to have a language flag.
*
* @name jsdoc-fenced-code-flag
* @memberof rules
* @type {Array}
* @see [fenced-code-flag]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-fenced-code-flag}
*
* @example
* // Bad...
*
* /**
* * Squares a number.
* *
* * ```
* * y = x;
* * ```
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a number.
* *
* * ```javascript
* * y = x;
* * ```
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-fenced-code-flag' ] = [
'error', {
'allowEmpty': false
}
];
/**
* Require lowercased definition labels.
*
* @name jsdoc-definition-case
* @memberof rules
* @type {string}
* @default 'error'
* @see [definition-case]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-definition-case}
*
* @example
* // Bad...
*
* /**
* * Squares a [number][Number].
* *
* * [Number]: https://example.com
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a [number][number].
* *
* * [number]: https://example.com
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-definition-case' ] = 'error';
/**
* Prevent consecutive whitespace in a definition.
*
* @name jsdoc-definition-spacing
* @memberof rules
* @type {string}
* @default 'error'
* @see [definition-spacing]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-definition-spacing}
*
* @example
* // Bad...
*
* /**
* * Squares a [number][number documentation].
* *
* * [number documentation]: https://example.com
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a [number][number documentation].
* *
* * [number documentation]: https://example.com
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-definition-spacing' ] = 'error';
/**
* Ensure that return annotations in JSDoc examples match the actual output.
*
* @name jsdoc-doctest
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
* /**
* * Squares a number.
* *
* * @param {number} x - input value
* * @returns {number} x*x
* *
* * @example
* * var y = square( 3.0 );
* * // returns 12.0
* *
* * y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
* /**
* * Squares a number.
* *
* * @param {number} x - input value
* * @returns {number} x*x
* *
* * @example
* * var y = square( 3.0 );
* * // returns 9.0
* *
* * y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-doctest' ] = 'error';
/**
* Ensure that only return annotations for real-valued return values always contain decimal points.
*
* @name jsdoc-doctest-decimal-point
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
* /**
* * Squares a number.
* *
* * @param {number} x - input value
* * @returns {number} x*x
* *
* * @example
* * var y = square( 3.0 );
* * // returns 9
* *
* * y = square( 2.0 );
* * // returns 4
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
* /**
* * Squares a number.
* *
* * @param {number} x - input value
* * @returns {number} x*x
* *
* * @example
* * var y = square( 3.0 );
* * // returns 9.0
* *
* * y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-doctest-decimal-point' ] = 'error';
/**
* Enforce marker style conventions for return annotations in JSDoc examples.
*
* @name jsdoc-doctest-marker
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
* /**
* * Squares a number.
* *
* * @param {number} x - input value
* * @returns {number} x*x
* *
* * @example
* * var y = square( 3.0 );
* * // => 9.0
* *
* * console.log( square( 2.0 ) );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
* /**
* * Squares a number.
* *
* * @param {number} x - input value
* * @returns {number} x*x
* *
* * @example
* * var y = square( 3.0 );
* * // returns 9.0
* *
* * console.log( square( 2.0 ) );
* * // => 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-doctest-marker' ] = 'error';
/**
* Require `_` be used as the emphasis marker.
*
* @name jsdoc-emphasis-marker
* @memberof rules
* @type {Array}
* @default [ 'error', '_' ]
* @see [emphasis-marker]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-emphasis-marker}
*
* @example
* // Bad...
*
* /**
* * Squares a *number*.
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a _number_.
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-emphasis-marker' ] = [ 'error', '_' ];
/**
* Require empty lines before `@example` tags in JSDoc comments.
*
* @name jsdoc-empty-line-before-example
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
*
* /**
* * Rounds a numeric value toward positive infinity.
* *
* * @param {number} x - input value
* * @returns {number} rounded value
* * @example
* * var v = ceil( -4.2 );
* * // returns -4.0
* * @example
* * var v = ceil( 9.99999 );
* * // returns 10.0
* *\/
* var ceil = Math.ceil;
*
* @example
* // Good...
*
* /**
* * Rounds a numeric value toward positive infinity.
* *
* * @param {number} x - input value
* * @returns {number} rounded value
* *
* * @example
* * var v = ceil( -4.2 );
* * // returns -4.0
* *
* * @example
* * var v = ceil( 9.99999 );
* * // returns 10.0
* *\/
* var ceil = Math.ceil;
*/
rules[ 'stdlib/jsdoc-empty-line-before-example' ] = 'error';
/**
* Enforce empty lines between requires and code in JSDoc examples.
*
* @name jsdoc-example-require-spacing
* @memberof rules
* @type {string}
* @default 'error'
*
* @example
* // Bad...
*
* /**
* * Fréchet distribution constructor.
* *
* * @module @stdlib/stats/base/dists/frechet/ctor
* *
* * @example
* * var Frechet = require( '@stdlib/stats/base/dists/frechet/ctor' );
* * var frechet = new Frechet( 1.0, 1.0, 0.5 );
* *
* * var y = frechet.cdf( 0.8 );
* * // returns ~0.036
* *\/
*
* @example
* // Good...
*
* /**
* * Fréchet distribution constructor.
* *
* * @module @stdlib/stats/base/dists/frechet/ctor
* *
* * @example
* * var Frechet = require( '@stdlib/stats/base/dists/frechet/ctor' );
* *
* * var frechet = new Frechet( 1.0, 1.0, 0.5 );
* *
* * var y = frechet.cdf( 0.8 );
* * // returns ~0.036
* *\/
*/
rules[ 'stdlib/jsdoc-example-require-spacing' ] = 'error';
/**
* Require `\`` be used as the fenced code marker.
*
* @name jsdoc-fenced-code-marker
* @memberof rules
* @type {Array}
* @default [ 'error', '`' ]
* @see [fenced-code-marker]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-fenced-code-marker}
*
* @example
* // Bad...
*
* /**
* * Squares a number.
* *
* * ~~~javascript
* * y = x;
* * ~~~
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a number.
* *
* * ```javascript
* * y = x;
* * ```
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-fenced-code-marker' ] = [ 'error', '`' ];
/**
* Require definitions be placed at the end of the description.
*
* @name jsdoc-final-definition
* @memberof rules
* @type {string}
* @default 'error'
* @see [final-definition]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-final-definition}
*
* @example
* // Bad...
*
* /**
* * Squares a [number][number].
* *
* * [number]: https://example.com
* *
* * Additional information.
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*
* @example
* // Good...
*
* /**
* * Squares a [number][number].
* *
* * Additional information.
* *
* * [number]: https://example.com
* *
* * @param {number} x - input number
* * @returns {number} x squared
* *
* * @example
* * var y = square( 2.0 );
* * // returns 4.0
* *\/
* function square( x ) {
* return x*x;
* }
*/
rules[ 'stdlib/jsdoc-final-definition' ] = 'error';
/**
* Require first heading level be a level `2` heading in JSDoc comments. A level `1` heading is implied.
*
* @name jsdoc-first-heading-level
* @memberof rules
* @type {Array}
* @see [first-heading-level]{@link https://github.com/wooorm/remark-lint/tree/master/packages/remark-lint-first-heading-level}
*
* @example
* // Bad...
*