29 lines
857 B
JavaScript
29 lines
857 B
JavaScript
"use strict";
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// Reflection on function formal parameter lists.
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// This module is based on Angular's "injector" code,
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// https://github.com/angular/angular.js/blob/master/src/auto/injector.js,
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// MIT licensed, and hence:
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// Copyright (c) 2010-2014 Google, Inc. http://angularjs.org
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// Copyright (c) 2014 Tony Garnock-Jones
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var FN_ARGS = /^function\s*[^\(]*\(\s*([^\)]*)\)/m;
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var FN_ARG_SPLIT = /,/;
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var STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
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function formalParameters(fn) {
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var result = [];
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var fnText = fn.toString().replace(STRIP_COMMENTS, '');
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var argDecl = fnText.match(FN_ARGS);
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var args = argDecl[1].split(FN_ARG_SPLIT);
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for (var i = 0; i < args.length; i++) {
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var trimmed = args[i].trim();
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if (trimmed) { result.push(trimmed); }
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}
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return result;
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}
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module.exports.formalParameters = formalParameters;
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