53 lines
1.2 KiB
JavaScript
53 lines
1.2 KiB
JavaScript
'use strict';
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const {matches} = require('./selectors/index.js');
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const {switchCallExpressionToNewExpression} = require('./fix/index.js');
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const messageId = 'throw-new-error';
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const messages = {
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[messageId]: 'Use `new` when throwing an error.',
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};
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const customError = /^(?:[A-Z][\da-z]*)*Error$/;
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const selector = [
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'ThrowStatement',
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' > ',
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'CallExpression.argument',
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matches([
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// `throw FooError()`
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[
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'[callee.type="Identifier"]',
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`[callee.name=/${customError.source}/]`,
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].join(''),
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// `throw lib.FooError()`
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[
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'[callee.type="MemberExpression"]',
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'[callee.computed!=true]',
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'[callee.property.type="Identifier"]',
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`[callee.property.name=/${customError.source}/]`,
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].join(''),
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]),
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].join('');
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/** @param {import('eslint').Rule.RuleContext} context */
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const create = context => ({
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[selector]: node => ({
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node,
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messageId,
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fix: fixer => switchCallExpressionToNewExpression(node, context.getSourceCode(), fixer),
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}),
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});
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/** @type {import('eslint').Rule.RuleModule} */
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module.exports = {
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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: 'Require `new` when throwing an error.',
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},
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fixable: 'code',
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messages,
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},
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};
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