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3c1069bb06
Refs: https://eslint.org/docs/latest/use/migrate-to-9.0.0 PR-URL: https://github.com/nodejs/node/pull/52889 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Yagiz Nizipli <yagiz.nizipli@sentry.io>
84 lines
2.7 KiB
JavaScript
84 lines
2.7 KiB
JavaScript
/**
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* @fileoverview Iterating over arrays should be avoided because it relies on
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* user-mutable global methods (`Array.prototype[Symbol.iterator]`
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* and `%ArrayIteratorPrototype%.next`), we should instead use
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* other alternatives. This file defines a rule that disallow
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* array destructuring syntax in favor of object destructuring
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* syntax. Note that you can ignore this rule if you are using
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* the array destructuring syntax over a safe iterable, or
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* actually want to iterate over a user-provided object.
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* @author aduh95 <duhamelantoine1995@gmail.com>
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*/
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'use strict';
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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const USE_OBJ_DESTRUCTURING =
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'Use object destructuring instead of array destructuring.';
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const USE_ARRAY_METHODS =
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'Use primordials.ArrayPrototypeSlice to avoid unsafe array iteration.';
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const findComma = (sourceCode, elements, i, start) => {
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if (i === 0)
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return sourceCode.getTokenAfter(sourceCode.getTokenByRangeStart(start));
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let element;
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const originalIndex = i;
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while (i && !element) {
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element = elements[--i];
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}
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let token = sourceCode.getTokenAfter(
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element ?? sourceCode.getTokenByRangeStart(start),
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);
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for (; i < originalIndex; i++) {
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token = sourceCode.getTokenAfter(token);
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}
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return token;
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};
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const createFix = (fixer, sourceCode, { range: [start, end], elements }) => [
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fixer.replaceTextRange([start, start + 1], '{'),
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fixer.replaceTextRange([end - 1, end], '}'),
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...elements.map((node, i) =>
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(node === null ?
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fixer.remove(findComma(sourceCode, elements, i, start)) :
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fixer.insertTextBefore(node, i + ':')),
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),
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];
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const arrayPatternContainsRestOperator = ({ elements }) =>
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elements?.find((node) => node?.type === 'RestElement');
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module.exports = {
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meta: {
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type: 'suggestion',
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fixable: 'code',
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schema: [],
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},
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create(context) {
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const sourceCode = context.sourceCode;
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return {
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ArrayPattern(node) {
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const hasRest = arrayPatternContainsRestOperator(node);
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context.report({
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message: hasRest ? USE_ARRAY_METHODS : USE_OBJ_DESTRUCTURING,
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node: hasRest || node,
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fix: hasRest ?
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undefined :
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(fixer) => [
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...(node.parent.type === 'AssignmentExpression' ?
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[
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fixer.insertTextBefore(node.parent, '('),
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fixer.insertTextAfter(node.parent, ')'),
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] :
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[]),
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...createFix(fixer, sourceCode, node),
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],
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});
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},
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};
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},
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};
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