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// ESLint rules for the Blink streams implementation.
// Based on the devtools rules, with extensive additions and modifications to
// reflect existing usage.
// eslint-disable-next-line no-undef
module.exports = {
root: true,
env: {browser: true, es6: true},
parserOptions: {ecmaVersion: 8},
// ESLint rules
//
// All available rules: http://eslint.org/docs/rules/
//
// All rules should have severity "error". For individual exceptions, use
// comments like:
// eslint-disable-next-line no-console
//
// If a rule is causing problems in multiple places, just remove it.
rules: {
// syntax preferences
quotes: [
'error', 'single',
{avoidEscape: true, allowTemplateLiterals: true}
],
semi: 'error',
'no-extra-semi': 'error',
'comma-style': ['error', 'last'],
'wrap-iife': ['error', 'inside'],
'spaced-comment': 'error',
eqeqeq: 'error',
'accessor-pairs':
['error', {getWithoutSet: false, setWithoutGet: false}],
curly: ['error', 'all'],
'new-parens': 'error',
'func-call-spacing': 'error',
'arrow-parens': ['error', 'as-needed'],
'max-len': ['error', {code: 80, ignoreUrls: true}],
// Security
strict: ['error', 'function'],
// no
'no-alert': 'error',
'no-caller': 'error',
'no-cond-assign': 'error',
'no-console': 'error',
'no-debugger': 'error',
'no-dupe-args': 'error',
'no-dupe-keys': 'error',
'no-duplicate-case': 'error',
'no-else-return': 'error',
'no-empty': 'error',
'no-empty-character-class': 'error',
'no-empty-pattern': 'error',
'no-eq-null': 'error',
'no-ex-assign': 'error',
'no-extra-boolean-cast': 'error',
'no-extra-parens': [
'error', 'all', {
conditionalAssign: false,
nestedBinaryExpressions: false,
returnAssign: false
}
],
'no-eval': 'error',
'no-fallthrough': 'error',
'no-floating-decimal': 'error',
'no-func-assign': 'error',
'no-implied-eval': 'error',
'no-implicit-coercion': 'error',
'no-implicit-globals': 'error',
'no-inner-declarations': 'off',
'no-invalid-regexp': 'error',
'no-irregular-whitespace': 'error',
'no-labels': 'error',
'no-loop-func': 'off',
'no-magic-numbers': 'off',
'no-multi-str': 'error',
'no-negated-in-lhs': 'error',
'no-new-func': 'error',
'no-new-wrappers': 'error',
'no-new-object': 'error',
'no-octal': 'error',
'no-octal-escape': 'error',
'no-self-compare': 'error',
'no-sequences': 'error',
'no-shadow-restricted-names': 'error',
'no-sparse-arrays': 'error',
'no-undef': 'error',
'no-unexpected-multiline': 'error',
'no-unsafe-finally': 'error',
'no-unreachable': 'error',
'no-unsafe-negation': 'error',
'no-unused-vars': 'error',
'no-useless-call': 'error',
'no-useless-concat': 'error',
'no-useless-escape': 'error',
'no-void': 'error',
'no-with': 'error',
radix: 'error',
'use-isnan': 'error',
'valid-typeof': 'error',
// ES6
'no-const-assign': 'error',
'no-dupe-class-members': 'error',
'no-new-symbol': 'error',
'no-this-before-super': 'error',
'no-var': 'error',
'prefer-const': 'error',
'prefer-rest-params': 'error',
'prefer-spread': 'error',
'template-curly-spacing': ['error', 'never'],
// spacing details
'space-infix-ops': 'error',
'space-in-parens': ['error', 'never'],
'no-whitespace-before-property': 'error',
'keyword-spacing': [
'error', {
overrides: {
if: {after: true},
else: {after: true},
for: {after: true},
while: {after: true},
do: {after: true},
switch: {after: true},
return: {after: true}
}
}
],
'arrow-spacing': ['error', {after: true, before: true}],
'one-var': ['error', 'never'],
'operator-assignment': ['error', 'always'],
'operator-linebreak': ['error', 'after'],
'padded-blocks': ['error', 'never'],
'space-before-blocks': ['error', 'always'],
'space-before-function-paren': ['error', 'never'],
'space-unary-ops': ['error', {words: true, nonwords: false}],
// file whitespace
'no-multiple-empty-lines': 'error',
'no-mixed-spaces-and-tabs': 'error',
'no-trailing-spaces': 'error',
'linebreak-style': ['error', 'unix'],
indent: ['error', 2, {SwitchCase: 1}],
'brace-style': ['error', '1tbs', {allowSingleLine: true}],
'key-spacing': [
'error', {beforeColon: false, afterColon: true, mode: 'strict'}
],
'quote-props': ['error', 'as-needed'],
'unicode-bom': ['error', 'never']
}
};
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