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December 25, 2015 05:19
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A method that will inject npm modules listed as parameters in a constructor.
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| function SomeConstructor (request, npm, monk) { | |
| // do something with the injected node modules | |
| } | |
| var instance = require('./injector')(SomeConstructor) // create a new instance with dependencies injected |
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| module.exports = function (C) { | |
| var params = C.toString() | |
| .replace(/((\/\/.*$)|(\/\*[\s\S]*?\*\/)|(\s))/mg,'') | |
| .match(/^function\s*[^\(]*\(\s*([^\)]*)\)/m)[1] | |
| .split(/,/) | |
| for (var i = 0, param; param = params[i]; i++) | |
| C = C.bind(this, require(param)) | |
| return new C() | |
| } |
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This is fire. My only concern is that "magic parameters" shepherd scare the shit out of me.
Super cool though. "I don't know regular expressions."