Currently the call can lead to a TypeError with the message:
`Cannot read property 'value' of undefined`.
This fixes it by first checking that the first argument is truthy.
PR-URL: https://github.com/nodejs/node/pull/18729
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Non-ASCII characters in /lib get compiled into the node binary,
and may bloat the binary size unnecessarily. A linter rule may
help prevent this.
PR-URL: https://github.com/nodejs/node/pull/18043
Fixes: https://github.com/nodejs/node/issues/11209
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Currently, when configuring --without-ssl any tests that use
process.binding('crypto') will not report a lint warning. This is
because the eslint check only generates a warning when using require.
This commit adds a check for using binding in addition to require.
PR-URL: https://github.com/nodejs/node/pull/17867
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
PR-URL: https://github.com/nodejs/node/pull/17653
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Primitives should use lowercase in error message.
Refs: https://github.com/nodejs/node/pull/16401
PR-URL: https://github.com/nodejs/node/pull/17568
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Add lint rule to validate that common.expectsError(fn, err) is being
used instead of assert.throws(fn, common.expectsError(err));
PR-URL: https://github.com/nodejs/node/pull/17557
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
I had a little trouble understanding what the rule was trying to say, so
am documenting what would pass/fail.
PR-URL: https://github.com/nodejs/node/pull/17376
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Adds `require-buffer` lint fixer.
If the buffer module is not required while `Buffer` is used, require the `buffer` module.
If the file has a `'use strict';` line, add the require after it on a separate line.
If the file does not have any (currently impossible with the `strict` rule) add it after the first comment (before the real code starts).
Fixes: https://github.com/nodejs/node/issues/16636
PR-URL: https://github.com/nodejs/node/pull/17144
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Consistently use printf-style strings for error messages that
do not need a custom argument order or processing of arguments.
PR-URL: https://github.com/nodejs/node/pull/16904
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Update tools/doc/html.js and tools/eslint-rules/crypto-check.js to
remove unused trailing function arguments in preparation for enabling a
lint rule to enforce that practice.
PR-URL: https://github.com/nodejs/node/pull/16953
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Currently the inspector-check rule does not store the node when the
usage of a require('inspector') is done. This means that it is not
possible to disable this rule. For example, if you add the following to
a test that uses the inspector module:
//common.skipIfInspectorDisabled();
/* eslint-disable inspector-check */
This will not disable the check and there will still be a lint error
reported.
This commit stores the node where the require statement is done which
allows for the rule to also be disabled.
PR-URL: https://github.com/nodejs/node/pull/16902
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
This follows the EPS an allows the node CLI to have ESM as an entry point.
`node ./example.mjs`. A newer V8 is needed for `import()` so that is not
included. `import.meta` is still in specification stage so that also is not
included.
PR-URL: https://github.com/nodejs/node/pull/14369
Author: Bradley Farias <bradley.meck@gmail.com>
Author: Guy Bedford <guybedford@gmail.com>
Author: Jan Krems <jan.krems@groupon.com>
Author: Timothy Gu <timothygu99@gmail.com>
Author: Michaël Zasso <targos@protonmail.com>
Author: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
To make sure errors in lib/internal/errors.js (are defined via `E`)
will stay in alphabetical order going forward.
PR-URL: https://github.com/nodejs/node/pull/15083
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
The motivation for this commit is to pick up early on missing checks for
inspector support (when Node is built --without-inspector).
PR-URL: https://github.com/nodejs/node/pull/13813
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
The motivation for this commit is to pick up early on missing checks for
crypto support (when Node is built --without-ssl).
There are currently usages of common.hasCrypto which are not just for
detecting if crypto support is available and then skip the test in
question. For these case we still want to have a lint error generated
which can then be disabled using an ESLint comment.
PR-URL: https://github.com/nodejs/node/pull/13813
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
no-unescaped-regexp-dot ESLint custom rule contains feature detection
that is not needed on master or the v6.x-staging branch. The rule does
not exist in the v4.x-staging branch. Remove the unnecessary complexity.
PR-URL: https://github.com/nodejs/node/pull/14561
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
The functionality of ESLint custom rule assert-throws-arguments can be
replaced with no-restricted-syntax entries.
PR-URL: https://github.com/nodejs/node/pull/14547
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
In preparation for stricter indentation linting, remove the
align-multiline-assignment custom rule, as it may conflict with the
ESLint stricter indentation linting.
PR-URL: https://github.com/nodejs/node/pull/14079
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
I noticed this comment while working on a different task and could not
find any reason for it being there. Just bringing this up in case it was
overlooked.
PR-URL: https://github.com/nodejs/node/pull/13945
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
In preparation for applying the more strict indentation linting
available in ESLint 4.0.0, correct minor indentation issues in
tools/eslint-rules/required-modules.js.
This is the only file with indentation that does not conform to the
stricter checks.
PR-URL: https://github.com/nodejs/node/pull/13758
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Replace custom lint rule for `assert.fail()` function signature errors
with a restricted-syntax rule.
PR-URL: https://github.com/nodejs/node/pull/12287
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Use no-restricted-syntax to implement the requirement that `Error`
objects must be thrown with the `new` keyword.
PR-URL: https://github.com/nodejs/node/pull/12249
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
ESLint 3.19.0 allows the specification of selectors that represent
disallowed syntax. Replace our custom rule for timer arguments with a
pair of `no-restricted-syntax` option objects.
PR-URL: https://github.com/nodejs/node/pull/12162
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
This adds an ESLint rule to enforce the use of `assert.ifError(err)`
instead of `if (err) throw err;` in tests.
PR-URL: https://github.com/nodejs/node/pull/10671
Ref: https://github.com/nodejs/node/pull/10543
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Michal Zasso <targos@protonmail.com>
Add a custom ESLint rule to require that setTimeout() and setInterval()
get called with at least two arguments. This prevents omitting the
duration or interval.
PR-URL: https://github.com/nodejs/node/pull/9472
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
The `no-useless-regex-char-class-escape` custom lint rule was introduced
as a less aggressive alternative to some enhancements that were
introduced into ESLint. Those enhancements were blocking us from
updating ESLint. However, they have since been relaxed and the custom
rule is no longer needed. Remove it.
PR-URL: https://github.com/nodejs/node/pull/10561
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
ESLint `indent` rule now has options that duplicate functionality in our
custom `align-function-arguments` rule. Remove
`align-function-arguments` custom rule.
PR-URL: https://github.com/nodejs/node/pull/10561
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
This is to be consistent with the other operators and helps
understanding the context when the code is grepped.
PR-URL: https://github.com/nodejs/node/pull/10213
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Extend the assert-throws-arguments custom ESLint rule to also check for
the use of template literals as a second argument to assert.throws.
PR-URL: https://github.com/nodejs/node/pull/10301
Ref: https://github.com/nodejs/node/pull/10282#discussion_r92607290
Reviewed-By: Prince John Wesley <princejohnwesley@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Italo A. Casas <me@italoacasas.com>
The second argument to "assert.throws" is usually a validation RegExp or
function for the thrown error. However, the function also accepts a
string and in this case it is interpreted as a message for the
AssertionError and not used for validation. It is common for people to
forget this and pass a validation string by mistake.
This new rule checks that we never pass a string literal as a second argument
to "assert.throws". Additionally, there is an option to enforce the
function to be called with at least two arguments. It is currently off
because we have many tests that do not comply with this rule.
PR-URL: https://github.com/nodejs/node/pull/10089
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Eslint Rule:
Disallow useless escape in regex character class
with optional override characters option and auto
fixable with eslint --fix option.
Usage:
no-useless-regex-char-class-escape: [2, { override: ['[', ']'] }]
PR-URL: https://github.com/nodejs/node/pull/9591
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
This adds a new ESLint tool to check for let
declarations within the for, forIn, forOf expressions.
Fixes: https://github.com/nodejs/node/issues/9045
Ref: https://github.com/nodejs/node/pull/8873
PR-URL: https://github.com/nodejs/node/pull/9049
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Prince John Wesley <princejohnwesley@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
