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chromium / chromium / src / d419e571ddfef4da90a3757ce71abb756ee07a21 / . / .eslintrc.js
blob: 648e321eb35f00e14970492fa4a6b30d5cf58886 [file] [log] [blame]
Avi Drissman24976592022-09-12 15:24:31[diff] [blame]1// Copyright 2017 The Chromium Authors
dpapadff82d512017-05-25 18:40:15[diff] [blame]2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5module.exports = {
6 'root': true,
7 'env': {
8 'browser': true,
dpapada06173092020-10-17 03:06:16[diff] [blame]9 'es2020': true,
Christopher Lama5f2ad02018-12-05 10:05:58[diff] [blame]10 },
11 'parserOptions': {
dpapada06173092020-10-17 03:06:16[diff] [blame]12 'ecmaVersion': 2020,
dpapad12b3c472019-05-29 02:16:05[diff] [blame]13 'sourceType': 'module',
dpapadff82d512017-05-25 18:40:15[diff] [blame]14 },
15 'rules': {
16 // Enabled checks.
Dan Beam1a0d9dcb2019-01-08 09:05:35[diff] [blame]17 'brace-style': ['error', '1tbs'],
dpapadf4d855722022-07-19 01:28:18[diff] [blame]18
19 // https://google.github.io/styleguide/jsguide.html#features-arrays-trailing-comma
20 // https://google.github.io/styleguide/jsguide.html#features-objects-use-trailing-comma
21 'comma-dangle': ['error', 'always-multiline'],
22
Dan Beam1a0d9dcb2019-01-08 09:05:35[diff] [blame]23 'curly': ['error', 'multi-line', 'consistent'],
dpapadc21c6fb2022-04-01 07:12:13[diff] [blame]24 'new-parens': 'error',
dpapadb2b0d6c2022-06-27 19:45:11[diff] [blame]25 'no-array-constructor': 'error',
dpapadc7570be2022-03-28 08:28:23[diff] [blame]26 'no-console': ['error', {allow: ['info', 'warn', 'error', 'assert']}],
Dan Beamb1536652019-02-26 07:36:25[diff] [blame]27 'no-extra-boolean-cast': 'error',
dpapadff82d512017-05-25 18:40:15[diff] [blame]28 'no-extra-semi': 'error',
dpapad728cff02017-06-01 01:06:42[diff] [blame]29 'no-new-wrappers': 'error',
dpapadd6fe5df2023-04-11 16:55:13[diff] [blame]30 'no-restricted-imports': ['error', {
31 'paths': [{
32 'name': 'chrome://resources/polymer/v3_0/polymer/polymer_bundled.min.js',
33 'importNames': ['Polymer'],
34 'message': 'Use PolymerElement instead.',
35 },
36 {
37 'name': '//resources/polymer/v3_0/polymer/polymer_bundled.min.js',
38 'importNames': ['Polymer'],
39 'message': 'Use PolymerElement instead.',
40 }],
41 }],
Christopher Lama5f2ad02018-12-05 10:05:58[diff] [blame]42 'no-restricted-properties': [
43 'error',
44 {
dpapad7b493a42019-06-22 02:07:09[diff] [blame]45 'property': '__lookupGetter__',
46 'message': 'Use Object.getOwnPropertyDescriptor',
47 },
48 {
49 'property': '__lookupSetter__',
50 'message': 'Use Object.getOwnPropertyDescriptor',
51 },
52 {
53 'property': '__defineGetter__',
54 'message': 'Use Object.defineProperty',
55 },
56 {
57 'property': '__defineSetter__',
58 'message': 'Use Object.defineProperty',
59 },
Dan Beam1aa00a122020-01-16 00:40:41[diff] [blame]60 {
61 'object': 'cr',
62 'property': 'exportPath',
63 'message': 'Use ES modules or cr.define() instead',
64 },
dpapad2674f9282017-05-31 19:40:39[diff] [blame]65 ],
dpapadbea253c32022-04-01 08:52:57[diff] [blame]66 'no-throw-literal': 'error',
dpapad2d023f92022-03-29 21:11:23[diff] [blame]67 'no-trailing-spaces': 'error',
Demetrios Papadopouloscf870bde2019-11-26 19:14:34[diff] [blame]68 'no-var': 'error',
69 'prefer-const': 'error',
dpapadab656922022-04-01 00:01:11[diff] [blame]70 'quotes': ['error', 'single', {allowTemplateLiterals: true}],
dpapad1e511b12017-05-31 03:31:26[diff] [blame]71 'semi': ['error', 'always'],
dpapad2674f9282017-05-31 19:40:39[diff] [blame]72
dpapadd631d172022-07-20 17:29:01[diff] [blame]73 // https://google.github.io/styleguide/jsguide.html#features-one-variable-per-declaration
74 'one-var': ['error', {
75 let: 'never',
76 const: 'never',
77 }],
78
dpapadff82d512017-05-25 18:40:15[diff] [blame]79 // TODO(dpapad): Add more checks according to our styleguide.
80 },
dpapadac97d7b62021-06-14 07:20:26[diff] [blame]81
82 'overrides': [{
83 'files': ['**/*.ts'],
84 'parser': './third_party/node/node_modules/@typescript-eslint/parser',
dpapadfa76653e2022-02-24 09:08:40[diff] [blame]85 'plugins': [
86 '@typescript-eslint',
87 ],
88 'rules': {
89 'no-unused-vars': 'off',
90 '@typescript-eslint/no-unused-vars': [
91 'error', {
92 argsIgnorePattern: '^_',
93 varsIgnorePattern: '^_',
94 }
dpapad5df23042022-03-21 19:22:37[diff] [blame]95 ],
96
97 'semi': 'off',
98 '@typescript-eslint/semi': ['error'],
dpapada2eca912022-03-28 09:36:44[diff] [blame]99
dpapad09279162022-07-07 18:34:06[diff] [blame]100 // https://google.github.io/styleguide/tsguide.html#arrayt-type
101 '@typescript-eslint/array-type': ['error', {
102 default: 'array-simple',
103 }],
104
dpapadd5332792022-07-11 21:15:14[diff] [blame]105 // https://google.github.io/styleguide/tsguide.html#type-assertions-syntax
106 '@typescript-eslint/consistent-type-assertions': ['error', {
107 assertionStyle: 'as',
108 }],
109
dpapadb1a935f2022-07-27 16:49:06[diff] [blame]110 // https://google.github.io/styleguide/tsguide.html#interfaces-vs-type-aliases
111 "@typescript-eslint/consistent-type-definitions": ['error', 'interface'],
112
dpapad684f427b2022-05-10 05:47:02[diff] [blame]113 // https://google.github.io/styleguide/jsguide.html#naming
dpapad50adcde2022-05-07 00:05:52[diff] [blame]114 '@typescript-eslint/naming-convention': [
115 'error',
116 {
dpapad684f427b2022-05-10 05:47:02[diff] [blame]117 selector: ['class', 'interface', 'typeAlias', 'enum', 'typeParameter'],
dpapad978c1da2022-10-19 18:12:09[diff] [blame]118 format: ['StrictPascalCase'],
119 filter: {
120 regex: '^(' +
121 // Exclude TypeScript defined interfaces HTMLElementTagNameMap
122 // and HTMLElementEventMap.
123 'HTMLElementTagNameMap|HTMLElementEventMap|' +
124 // Exclude native DOM types which are always named like HTML<Foo>Element.
125 'HTML[A-Za-z]{0,}Element|' +
126 // Exclude native DOM interfaces.
127 'UIEvent|UIEventInit|DOMError|' +
128 // Exclude the deprecated WebUIListenerBehavior interface.
129 'WebUIListenerBehavior)$',
130 match: false,
131 },
dpapad50adcde2022-05-07 00:05:52[diff] [blame]132 },
133 {
dpapad50adcde2022-05-07 00:05:52[diff] [blame]134 selector: 'enumMember',
135 format: ['UPPER_CASE'],
136 },
dpapad684f427b2022-05-10 05:47:02[diff] [blame]137 {
138 selector: 'classMethod',
dpapade9ae77d2022-12-12 17:02:00[diff] [blame]139 format: ['strictCamelCase'],
dpapadb7286e82022-06-16 01:33:27[diff] [blame]140 modifiers: ['public'],
141 },
142 {
143 selector: 'classMethod',
dpapade9ae77d2022-12-12 17:02:00[diff] [blame]144 format: ['strictCamelCase'],
dpapadb7286e82022-06-16 01:33:27[diff] [blame]145 modifiers: ['private'],
dpapad684f427b2022-05-10 05:47:02[diff] [blame]146 trailingUnderscore: 'allow',
dpapadd5da00a92023-05-26 17:58:23[diff] [blame]147
148 // Disallow the 'Tap_' suffix, in favor of 'Click_' in event handlers.
149 // Note: Unfortunately this ESLint rule does not provide a way to
150 // customize the error message to better inform developers.
151 custom: {
152 regex: '^on[a-zA-Z0-9]+Tap$',
153 match: false,
154 },
dpapad684f427b2022-05-10 05:47:02[diff] [blame]155 },
156 {
dpapade9d1fa72022-06-09 17:42:50[diff] [blame]157 selector: 'classProperty',
158 format: ['UPPER_CASE'],
dpapad588bb912022-06-15 05:35:33[diff] [blame]159 modifiers: ['private', 'static', 'readonly'],
160 },
161 {
162 selector: 'classProperty',
163 format: ['UPPER_CASE'],
164 modifiers: ['public', 'static', 'readonly'],
dpapade9d1fa72022-06-09 17:42:50[diff] [blame]165 },
166 {
167 selector: 'classProperty',
168 format: ['camelCase'],
dpapad588bb912022-06-15 05:35:33[diff] [blame]169 modifiers: ['public'],
170 },
171 {
172 selector: 'classProperty',
173 format: ['camelCase'],
174 modifiers: ['private'],
dpapade9d1fa72022-06-09 17:42:50[diff] [blame]175 trailingUnderscore: 'allow',
176 },
177 {
dpapad684f427b2022-05-10 05:47:02[diff] [blame]178 selector: 'parameter',
179 format: ['camelCase'],
180 leadingUnderscore: 'allow',
181 },
dpapadb17f3beb2022-05-10 21:34:13[diff] [blame]182 {
183 selector: 'function',
184 format: ['camelCase'],
185 },
dpapad50adcde2022-05-07 00:05:52[diff] [blame]186 ],
187
dpapada2eca912022-03-28 09:36:44[diff] [blame]188 '@typescript-eslint/member-delimiter-style': ['error', {
189 multiline: {
190 delimiter: 'comma',
191 requireLast: true,
192 },
193 singleline: {
194 delimiter: 'comma',
195 requireLast: false,
196 },
197 overrides: {
198 interface: {
199 multiline: {
200 delimiter: 'semi',
201 requireLast: true,
202 },
203 singleline: {
204 delimiter: 'semi',
205 requireLast: false,
206 },
207 },
208 },
dpapadb5aaf1a2022-07-11 18:00:41[diff] [blame]209 }],
210
211 // https://google.github.io/styleguide/tsguide.html#wrapper-types
212 '@typescript-eslint/ban-types': ['error', {
213 extendDefaults: false,
214 types: {
215 String: {
216 message: 'Use string instead',
217 fixWith: 'string',
218 },
219 Boolean: {
220 message: 'Use boolean instead',
221 fixWith: 'boolean',
222 },
223 Number: {
224 message: 'Use number instead',
225 fixWith: 'number',
226 },
227 Symbol: {
228 message: 'Use symbol instead',
229 fixWith: 'symbol',
230 },
231 BigInt: {
232 message: 'Use bigint instead',
233 fixWith: 'bigint',
234 },
235 }
236 }],
dpapadfa76653e2022-02-24 09:08:40[diff] [blame]237 }
dpapadac97d7b62021-06-14 07:20:26[diff] [blame]238 }]
dpapadff82d512017-05-25 18:40:15[diff] [blame]239};