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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /tools/lint/eslint/eslint-plugin-mozilla/lib/rules/avoid-Date-timing.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/lint/eslint/eslint-plugin-mozilla/lib/rules/avoid-Date-timing.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/avoid-Date-timing.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/avoid-Date-timing.js new file mode 100644 index 0000000000..ce576e9483 --- /dev/null +++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/avoid-Date-timing.js @@ -0,0 +1,61 @@ +/** + * @fileoverview Disallow using Date for timing in performance sensitive code + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +"use strict"; + +module.exports = { + meta: { + docs: { + url: "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/avoid-Date-timing.html", + }, + messages: { + usePerfNow: + "use performance.now() instead of Date.now() for timing measurements", + }, + schema: [], + type: "problem", + }, + + create(context) { + return { + CallExpression(node) { + let callee = node.callee; + if ( + callee.type !== "MemberExpression" || + callee.object.type !== "Identifier" || + callee.object.name !== "Date" || + callee.property.type !== "Identifier" || + callee.property.name !== "now" + ) { + return; + } + + context.report({ + node, + messageId: "usePerfNow", + }); + }, + + NewExpression(node) { + let callee = node.callee; + if ( + callee.type !== "Identifier" || + callee.name !== "Date" || + node.arguments.length + ) { + return; + } + + context.report({ + node, + messageId: "usePerfNow", + }); + }, + }; + }, +}; |