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63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
/**
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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:
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"disallow trailing commas in parameter/argument lists.",
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category: "ES2017",
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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-function-commas.html",
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},
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fixable: "code",
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messages: {
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forbidden:
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"ES2017 trailing commas in parameter/argument lists 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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":function"(node) {
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const length = node.params.length
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if (length === 0) {
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return
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}
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const lastParam = node.params[length - 1]
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const token = sourceCode.getTokenAfter(lastParam)
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if (isCommaToken(token)) {
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context.report({
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loc: token.loc,
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messageId: "forbidden",
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fix(fixer) {
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return fixer.remove(token)
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},
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})
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}
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},
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"CallExpression, NewExpression"(node) {
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const token = sourceCode.getLastToken(node, 1)
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if (node.arguments.length >= 1 && isCommaToken(token)) {
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context.report({
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loc: token.loc,
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messageId: "forbidden",
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fix(fixer) {
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return fixer.remove(token)
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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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}
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