webextension-polyfill/.eslintrc

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{
"root": true,
"parser": "babel-eslint",
"parserOptions": {
"ecmaVersion": 6,
},
"env": {
"es6": true,
"node": true,
},
"globals": {
},
"rules": {
"valid-jsdoc": [2, {
"prefer": {
"return": "returns",
},
"preferType": {
"Boolean": "boolean",
"Number": "number",
"String": "string",
"bool": "boolean",
},
"requireParamDescription": false,
"requireReturn": false,
"requireReturnDescription": false,
}],
// Require spacing around =>
"arrow-spacing": 2,
// Always require spacing around a single line block
"block-spacing": 1,
// Forbid spaces inside the square brackets of array literals.
"array-bracket-spacing": [2, "never"],
// Forbid spaces inside the curly brackets of object literals.
"object-curly-spacing": [2, "never"],
// No space padding in parentheses
"space-in-parens": [2, "never"],
// Enforce one true brace style (opening brace on the same line) and avoid
// start and end braces on the same line.
"brace-style": [2, "1tbs", {"allowSingleLine": true}],
// No space before always a space after a comma
"comma-spacing": [2, {"before": false, "after": true}],
// Commas at the end of the line not the start
"comma-style": 2,
// Don't require spaces around computed properties
"computed-property-spacing": [1, "never"],
// Functions are not required to consistently return something or nothing
"consistent-return": 0,
// Require braces around blocks that start a new line
"curly": [2, "all"],
// Always require a trailing EOL
"eol-last": 2,
// Require function* name()
"generator-star-spacing": [2, {"before": false, "after": true}],
// Two space indent
"indent": [2, 2, {
"SwitchCase": 1,
"CallExpression": {"arguments": "first"}
}
],
// Space after colon not before in property declarations
"key-spacing": [2, {"beforeColon": false, "afterColon": true, "mode": "minimum"}],
// Require spaces before and after finally, catch, etc.
"keyword-spacing": 2,
// Unix linebreaks
"linebreak-style": [2, "unix"],
// Always require parenthesis for new calls
"new-parens": 2,
// Use [] instead of Array()
"no-array-constructor": 2,
// No duplicate arguments in function declarations
"no-dupe-args": 2,
// No duplicate keys in object declarations
"no-dupe-keys": 2,
// No duplicate cases in switch statements
"no-duplicate-case": 2,
// Disallow empty statements. This will report an error for:
// try { something(); } catch (e) {}
// but will not report it for:
// try { something(); } catch (e) { /* Silencing the error because ...*/ }
// which is a valid use case.
"no-empty": 2,
// No empty character classes in regex
"no-empty-character-class": 2,
// Disallow empty destructuring
"no-empty-pattern": 2,
// No assiging to exception variable
"no-ex-assign": 2,
// No using !! where casting to boolean is already happening
"no-extra-boolean-cast": 1,
// No double semicolon
"no-extra-semi": 2,
// No overwriting defined functions
"no-func-assign": 2,
// No invalid regular expresions
"no-invalid-regexp": 2,
// No odd whitespace characters
"no-irregular-whitespace": 2,
// No single if block inside an else block
"no-lonely-if": 1,
// No mixing spaces and tabs in indent
"no-mixed-spaces-and-tabs": [2, "smart-tabs"],
// Disallow use of multiple spaces (sometimes used to align const values,
// array or object items, etc.). It's hard to maintain and doesn't add that
// much benefit.
"no-multi-spaces": 1,
// No reassigning native JS objects
"no-native-reassign": 2,
// No (!foo in bar)
"no-negated-in-lhs": 2,
// Nested ternary statements are confusing
"no-nested-ternary": 2,
// Use {} instead of new Object()
"no-new-object": 2,
// No Math() or JSON()
"no-obj-calls": 2,
// No octal literals
"no-octal": 2,
// No redeclaring variables
"no-redeclare": 2,
// No unnecessary comparisons
"no-self-compare": 2,
// No spaces between function name and parentheses
"no-spaced-func": 1,
// No trailing whitespace
"no-trailing-spaces": 2,
// Error on newline where a semicolon is needed
"no-unexpected-multiline": 2,
// No unreachable statements
"no-unreachable": 2,
// No expressions where a statement is expected
"no-unused-expressions": 2,
// No declaring variables that are never used
"no-unused-vars": [2, {"args": "none", "varsIgnorePattern": "^(Cc|Ci|Cr|Cu|EXPORTED_SYMBOLS)$"}],
// No using variables before defined
"no-use-before-define": 2,
// No using with
"no-with": 2,
// Always require semicolon at end of statement
"semi": [2, "always"],
// Require space before blocks
"space-before-blocks": 2,
// Never use spaces before function parentheses
"space-before-function-paren": [2, {"anonymous": "never", "named": "never"}],
// Require spaces around operators, except for a|0.
"space-infix-ops": [2, {"int32Hint": true}],
// ++ and -- should not need spacing
"space-unary-ops": [1, {"nonwords": false, "words": true, "overrides": {"typeof": false}}],
// No comparisons to NaN
"use-isnan": 2,
// Only check typeof against valid results
"valid-typeof": 2,
// Disallow using variables outside the blocks they are defined (especially
// since only let and const are used, see "no-var").
"block-scoped-var": 2,
// Allow trailing commas for easy list extension. Having them does not
// impair readability, but also not required either.
"comma-dangle": [2, "always-multiline"],
// Warn about cyclomatic complexity in functions.
"complexity": 1,
// Don't require a default case in switch statements. Avoid being forced to
// add a bogus default when you know all possible cases are handled.
"default-case": 0,
// Enforce dots on the next line with property name.
"dot-location": [2, "property"],
// Encourage the use of dot notation whenever possible.
"dot-notation": 2,
// Allow using == instead of ===, in the interest of landing something since
// the devtools codebase is split on convention here.
"eqeqeq": 0,
// Don't require function expressions to have a name.
// This makes the code more verbose and hard to read. Our engine already
// does a fantastic job assigning a name to the function, which includes
// the enclosing function name, and worst case you have a line number that
// you can just look up.
"func-names": 0,
// Allow use of function declarations and expressions.
"func-style": 0,
// Don't enforce the maximum depth that blocks can be nested. The complexity
// rule is a better rule to check this.
"max-depth": 0,
// Maximum length of a line.
// Disabled because we exceed this in too many places.
"max-len": [0, 80],
// Maximum depth callbacks can be nested.
"max-nested-callbacks": [2, 4],
// Don't limit the number of parameters that can be used in a function.
"max-params": 0,
// Don't limit the maximum number of statement allowed in a function. We
// already have the complexity rule that's a better measurement.
"max-statements": 0,
// Don't require a capital letter for constructors, only check if all new
// operators are followed by a capital letter. Don't warn when capitalized
// functions are used without the new operator.
"new-cap": [0, {"capIsNew": false}],
// Allow use of bitwise operators.
"no-bitwise": 0,
// Disallow use of arguments.caller or arguments.callee.
"no-caller": 2,
// Disallow the catch clause parameter name being the same as a variable in
// the outer scope, to avoid confusion.
"no-catch-shadow": 0,
// Disallow assignment in conditional expressions.
"no-cond-assign": 2,
// Allow using constant expressions in conditions like while (true)
"no-constant-condition": 0,
// Allow use of the continue statement.
"no-continue": 0,
// Disallow control characters in regular expressions.
"no-control-regex": 2,
// Disallow use of debugger.
"no-debugger": 2,
// Disallow deletion of variables (deleting properties is fine).
"no-delete-var": 2,
// Allow division operators explicitly at beginning of regular expression.
"no-div-regex": 0,
// Disallow use of eval(). We have other APIs to evaluate code in content.
"no-eval": 2,
// Disallow adding to native types
"no-extend-native": 2,
// Disallow unnecessary function binding.
"no-extra-bind": 2,
// Allow unnecessary parentheses, as they may make the code more readable.
"no-extra-parens": 0,
// Disallow fallthrough of case statements, except if there is a comment.
"no-fallthrough": 2,
// Allow the use of leading or trailing decimal points in numeric literals.
"no-floating-decimal": 0,
// Allow comments inline after code.
"no-inline-comments": 0,
// Disallow use of labels for anything other then loops and switches.
"no-labels": [2, { "allowLoop": true }],
// Disallow use of multiline strings (use template strings instead).
"no-multi-str": 1,
// Disallow multiple empty lines.
"no-multiple-empty-lines": [1, {"max": 2}],
// Allow reassignment of function parameters.
"no-param-reassign": 0,
// Allow string concatenation with __dirname and __filename (not a node env).
"no-path-concat": 0,
// Allow use of unary operators, ++ and --.
"no-plusplus": 0,
// Allow using process.env (not a node environment).
"no-process-env": 0,
// Allow using process.exit (not a node environment).
"no-process-exit": 0,
// Disallow usage of __proto__ property.
"no-proto": 2,
// Disallow multiple spaces in a regular expression literal.
"no-regex-spaces": 2,
// Allow reserved words being used as object literal keys.
"no-reserved-keys": 0,
// Don't restrict usage of specified node modules (not a node environment).
"no-restricted-modules": 0,
// Disallow use of assignment in return statement. It is preferable for a
// single line of code to have only one easily predictable effect.
"no-return-assign": 2,
// Don't warn about declaration of variables already declared in the outer scope.
"no-shadow": 0,
// Disallow shadowing of names such as arguments.
"no-shadow-restricted-names": 2,
// Allow use of synchronous methods (not a node environment).
"no-sync": 0,
// Allow the use of ternary operators.
"no-ternary": 0,
// Disallow throwing literals (eg. throw "error" instead of
// throw new Error("error")).
"no-throw-literal": 2,
// Disallow use of undeclared variables unless mentioned in a /* global */
// block. Note that globals from head.js are automatically imported in tests
// by the import-headjs-globals rule form the mozilla eslint plugin.
"no-undef": 2,
// Allow dangling underscores in identifiers (for privates).
"no-underscore-dangle": 0,
// Allow use of undefined variable.
"no-undefined": 0,
// Disallow the use of Boolean literals in conditional expressions.
"no-unneeded-ternary": 2,
// We use var-only-at-top-level instead of no-var as we allow top level
// vars.
"no-var": 0,
// Allow using TODO/FIXME comments.
"no-warning-comments": 0,
// Don't require method and property shorthand syntax for object literals.
// We use this in the code a lot, but not consistently, and this seems more
// like something to check at code review time.
"object-shorthand": 0,
// Allow more than one variable declaration per function.
"one-var": 0,
// Disallow padding within blocks.
"padded-blocks": [1, "never"],
// Don't require quotes around object literal property names.
"quote-props": 0,
// Double quotes should be used.
"quotes": [2, "double", {"avoidEscape": true, "allowTemplateLiterals": true}],
// Require use of the second argument for parseInt().
"radix": 2,
// Enforce spacing after semicolons.
"semi-spacing": [2, {"before": false, "after": true}],
// Don't require to sort variables within the same declaration block.
// Anyway, one-var is disabled.
"sort-vars": 0,
// Require a space immediately following the // in a line comment.
"spaced-comment": [2, "always"],
// Require "use strict" to be defined globally in the script.
"strict": [0, "global"],
// Allow vars to be declared anywhere in the scope.
"vars-on-top": 0,
// Don't require immediate function invocation to be wrapped in parentheses.
"wrap-iife": 0,
// Don't require regex literals to be wrapped in parentheses (which
// supposedly prevent them from being mistaken for division operators).
"wrap-regex": 0,
// Disallow Yoda conditions (where literal value comes first).
"yoda": 2,
// disallow use of eval()-like methods
"no-implied-eval": 2,
// Disallow function or variable declarations in nested blocks
"no-inner-declarations": 2,
// Disallow usage of __iterator__ property
"no-iterator": 2,
// Disallow labels that share a name with a variable
"no-label-var": 2,
// Disallow creating new instances of String, Number, and Boolean
"no-new-wrappers": 2,
}
}