From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- .../lib/rules/use-default-preference-values.js | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-default-preference-values.js (limited to 'tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-default-preference-values.js') diff --git a/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-default-preference-values.js b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-default-preference-values.js new file mode 100644 index 0000000000..7c2ffaf933 --- /dev/null +++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-default-preference-values.js @@ -0,0 +1,45 @@ +/** + * @fileoverview Require providing a second parameter to get*Pref + * methods instead of using a try/catch block. + * + * 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"; + +// ----------------------------------------------------------------------------- +// Rule Definition +// ----------------------------------------------------------------------------- + +module.exports = function(context) { + // --------------------------------------------------------------------------- + // Public + // -------------------------------------------------------------------------- + + return { + TryStatement(node) { + let types = ["Bool", "Char", "Float", "Int"]; + let methods = types.map(type => "get" + type + "Pref"); + if (node.block.type != "BlockStatement" || node.block.body.length != 1) { + return; + } + + let firstStm = node.block.body[0]; + if ( + firstStm.type != "ExpressionStatement" || + firstStm.expression.type != "AssignmentExpression" || + firstStm.expression.right.type != "CallExpression" || + firstStm.expression.right.callee.type != "MemberExpression" || + firstStm.expression.right.callee.property.type != "Identifier" || + !methods.includes(firstStm.expression.right.callee.property.name) + ) { + return; + } + + let msg = "provide a default value instead of using a try/catch block"; + context.report(node, msg); + }, + }; +}; -- cgit v1.2.3