60 lines
2.1 KiB
JavaScript
60 lines
2.1 KiB
JavaScript
/**
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* @author Yosuke Ota
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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 utils = require("eslint-utils")
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module.exports = {
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meta: {
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docs: {
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description: "disallow logical assignment operators.",
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category: "ES2021",
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recommended: false,
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url:
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"http://mysticatea.github.io/eslint-plugin-es/rules/no-logical-assignment-operators.html",
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},
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fixable: "code",
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messages: {
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forbidden: "ES2021 logical assignment operators 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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"AssignmentExpression[operator=/(?:\\|\\||&&|\\?\\?)=/]"(node) {
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const operatorToken = sourceCode.getTokenAfter(node.left)
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context.report({
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node: operatorToken,
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messageId: "forbidden",
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fix(fixer) {
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if (utils.hasSideEffect(node.left, sourceCode)) {
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return null
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}
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const newOperator = node.operator.slice(-1)
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const biOperator = node.operator.slice(0, -1)
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const varText = sourceCode.getText(node.left)
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const results = [
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fixer.replaceText(operatorToken, newOperator),
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fixer.insertTextAfter(
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operatorToken,
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` ${varText} ${biOperator}`
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),
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]
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if (!utils.isParenthesized(node.right, sourceCode)) {
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results.push(
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fixer.insertTextBefore(node.right, "("),
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fixer.insertTextAfter(node.right, ")")
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)
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}
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return results
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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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