51 lines
1.3 KiB
JavaScript
51 lines
1.3 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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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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category: "Best Practices",
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recommended: false,
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url: "https://eslint.org/docs/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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