mirror of https://gitee.com/bigwinds/arangodb
65 lines
1.8 KiB
JavaScript
65 lines
1.8 KiB
JavaScript
/**
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* @fileoverview Rule to warn when a function expression does not have a name.
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* @author Kyle T. Nunery
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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 = {
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meta: {
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docs: {
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description: "require or disallow named `function` expressions",
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category: "Stylistic Issues",
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recommended: false
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},
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schema: [
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{
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enum: ["always", "never"]
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}
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]
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},
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create: function(context) {
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var never = context.options[0] === "never";
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/**
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* Determines whether the current FunctionExpression node is a get, set, or
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* shorthand method in an object literal or a class.
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* @returns {boolean} True if the node is a get, set, or shorthand method.
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*/
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function isObjectOrClassMethod() {
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var parent = context.getAncestors().pop();
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return (parent.type === "MethodDefinition" || (
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parent.type === "Property" && (
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parent.method ||
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parent.kind === "get" ||
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parent.kind === "set"
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)
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));
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}
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return {
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FunctionExpression: function(node) {
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var name = node.id && node.id.name;
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if (never) {
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if (name) {
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context.report(node, "Unexpected function expression name.");
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}
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} else {
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if (!name && !isObjectOrClassMethod()) {
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context.report(node, "Missing function expression name.");
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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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