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Reflect.formalParameters

This commit is contained in:
Tony Garnock-Jones 2014-07-24 21:07:36 -07:00
parent e0b476cc0a
commit 0b361137a2
2 changed files with 26 additions and 0 deletions
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1
src/main.js
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@ -4,6 +4,7 @@ module.exports.DOM = require("./dom-driver.js");
module.exports.JQuery = require("./jquery-driver.js");
module.exports.RoutingTableWidget = require("./routing-table-widget.js");
module.exports.WebSocket = require("./websocket-driver.js");
module.exports.Reflect = require("./reflect.js");
module.exports.Spy = require("./spy.js").Spy;
module.exports.WakeDetector = require("./wake-detector.js").WakeDetector;

25
src/reflect.js Normal file
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@ -0,0 +1,25 @@
// Reflection on function formal parameter lists.
// This module is based on Angular's "injector" code,
// https://github.com/angular/angular.js/blob/master/src/auto/injector.js,
// MIT licensed, and hence:
// Copyright (c) 2010-2014 Google, Inc. http://angularjs.org
// Copyright (c) 2014 Tony Garnock-Jones
var FN_ARGS = /^function\s*[^\(]*\(\s*([^\)]*)\)/m;
var FN_ARG_SPLIT = /,/;
var STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
function formalParameters(fn) {
var result = [];
var fnText = fn.toString().replace(STRIP_COMMENTS, '');
var argDecl = fnText.match(FN_ARGS);
var args = argDecl[1].split(FN_ARG_SPLIT);
for (var i = 0; i < args.length; i++) {
result.push(args[i].trim());
}
return result;
}
module.exports.formalParameters = formalParameters;