56 lines
1.2 KiB
JavaScript
56 lines
1.2 KiB
JavaScript
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import {isMethodCall, isNumericLiteral} from './ast/index.js';
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import {getCallExpressionTokens} from './utils/index.js';
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const MESSAGE_ID = 'no-magic-array-flat-depth';
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const messages = {
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[MESSAGE_ID]: 'Magic number as depth is not allowed.',
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};
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/** @param {import('eslint').Rule.RuleContext} context */
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const create = context => ({
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CallExpression(callExpression) {
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if (!isMethodCall(callExpression, {
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method: 'flat',
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argumentsLength: 1,
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optionalCall: false,
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})) {
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return;
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}
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const [depth] = callExpression.arguments;
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if (!isNumericLiteral(depth) || depth.value === 1) {
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return;
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}
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const {sourceCode} = context;
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const {
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openingParenthesisToken,
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closingParenthesisToken,
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} = getCallExpressionTokens(callExpression, context);
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if (sourceCode.commentsExistBetween(openingParenthesisToken, closingParenthesisToken)) {
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return;
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}
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return {
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node: depth,
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messageId: MESSAGE_ID,
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};
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},
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});
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/** @type {import('eslint').Rule.RuleModule} */
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const config = {
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create,
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meta: {
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type: 'suggestion',
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docs: {
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description: 'Disallow a magic number as the `depth` argument in `Array#flat(…).`',
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recommended: 'unopinionated',
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},
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messages,
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},
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};
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export default config;
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