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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-includes-instead-of-indexOf.js | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-includes-instead-of-indexOf.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-includes-instead-of-indexOf.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-includes-instead-of-indexOf.js new file mode 100644 index 0000000000..99a04bbb72 --- /dev/null +++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-includes-instead-of-indexOf.js @@ -0,0 +1,50 @@ +/** + * @fileoverview Use .includes instead of .indexOf + * + * 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/use-includes-instead-of-indexOf.html", + }, + schema: [], + type: "suggestion", + }, + + create(context) { + return { + BinaryExpression(node) { + if ( + node.left.type != "CallExpression" || + node.left.callee.type != "MemberExpression" || + node.left.callee.property.type != "Identifier" || + node.left.callee.property.name != "indexOf" + ) { + return; + } + + if ( + (["!=", "!==", "==", "==="].includes(node.operator) && + node.right.type == "UnaryExpression" && + node.right.operator == "-" && + node.right.argument.type == "Literal" && + node.right.argument.value == 1) || + ([">=", "<"].includes(node.operator) && + node.right.type == "Literal" && + node.right.value == 0) + ) { + context.report({ + node, + message: "use .includes instead of .indexOf", + }); + } + }, + }; + }, +}; |