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f9dd34d301
PR-URL: https://github.com/iojs/io.js/pull/1539 Fixes: https://github.com/iojs/io.js/issues/1253 Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io> Reviewed-By: Chris Dickinson <christopher.s.dickinson@gmail.com> Reviewed-By: Johan Bergström <bugs@bergstroem.nu> Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
26 lines
738 B
JavaScript
26 lines
738 B
JavaScript
/**
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* @fileoverview Rule to flag references to the undefined variable.
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* @author Michael Ficarra
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = function(context) {
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return {
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"Identifier": function(node) {
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if (node.name === "undefined") {
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var parent = context.getAncestors().pop();
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if (!parent || parent.type !== "MemberExpression" || node !== parent.property || parent.computed) {
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context.report(node, "Unexpected use of undefined.");
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}
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}
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}
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};
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};
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