40 lines
1.1 KiB
JavaScript
40 lines
1.1 KiB
JavaScript
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/**
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* @author Toru Nagashima <https://github.com/mysticatea>
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* See LICENSE file in root directory for full license.
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*/
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"use strict"
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const { isCommaToken } = require("../utils")
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module.exports = {
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meta: {
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docs: {
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description: "disallow trailing commas in array/object literals.",
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category: "ES5",
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recommended: false,
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url:
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"http://mysticatea.github.io/eslint-plugin-es/rules/no-trailing-commas.html",
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},
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fixable: null,
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messages: {
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forbidden:
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"ES5 trailing commas in array/object literals are forbidden.",
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},
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schema: [],
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type: "problem",
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},
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create(context) {
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const sourceCode = context.getSourceCode()
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return {
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"ArrayExpression, ArrayPattern, ObjectExpression, ObjectPattern"(
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node
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) {
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const token = sourceCode.getLastToken(node, 1)
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if (isCommaToken(token)) {
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context.report({ node, messageId: "forbidden" })
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}
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},
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}
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},
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}
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