47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
/**
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* @fileoverview Rule to restrict what can be thrown as an exception.
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* @author Dieter Oberkofler
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*/
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'use strict';
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const astUtils = require('./utils/ast-utils');
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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/** @type {import('../types').Rule.RuleModule} */
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module.exports = {
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meta: {
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type: 'suggestion',
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docs: {
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description: 'Disallow throwing literals as exceptions',
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recommended: false,
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url: 'https://eslint.org/docs/latest/rules/no-throw-literal',
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},
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schema: [],
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messages: {
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object: 'Expected an error object to be thrown.',
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undef: 'Do not throw undefined.',
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},
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},
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create(context) {
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return {
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ThrowStatement(node) {
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if (!astUtils.couldBeError(node.argument)) {
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context.report({ node, messageId: 'object' });
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} else if (node.argument.type === 'Identifier') {
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if (node.argument.name === 'undefined') {
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context.report({ node, messageId: 'undef' });
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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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