eslint-plugin-unicorn/rules/throw-new-error.js

More than 100 powerful ESLint rules

import {isMemberExpression} from './ast/index.js';
import {switchCallExpressionToNewExpression} from './fix/index.js';

const messageId = 'throw-new-error';
const messages = {
	[messageId]: 'Use `new` when creating an error.',
};

const customError = /^(?:[A-Z][\da-z]*)*Error$/;

/** @param {import('eslint').Rule.RuleContext} context */
const create = context => {
	context.on('CallExpression', node => {
		const {callee} = node;
		if (!(
			(callee.type === 'Identifier' && customError.test(callee.name))
			|| (
				callee.type === 'MemberExpression'
				&& !callee.computed
				&& callee.property.type === 'Identifier'
				&& customError.test(callee.property.name)
			)
		)) {
			return;
		}

		// https://github.com/sindresorhus/eslint-plugin-unicorn/issues/2654 (Effect library)
		if (
			isMemberExpression(callee, {
				object: 'Data',
				property: 'TaggedError',
				computed: false,
			})
		) {
			return;
		}

		return {
			node,
			messageId,
			fix: fixer => switchCallExpressionToNewExpression(node, context, fixer),
		};
	});
};

/** @type {import('eslint').Rule.RuleModule} */
const config = {
	create,
	meta: {
		type: 'suggestion',
		docs: {
			description: 'Require `new` when creating an error.',
			recommended: 'unopinionated',
		},
		fixable: 'code',
		messages,
	},
};

export default config;