Why does Function.apply(Function, args) does have no access to require()?

[cookiengineer]

I don't understand the mistake here, so it could be just my dumbness.

If you execute the following code, it raises a ReferenceError (require is not defined).

Why is this the case and how to fix it?

The functionality of deserializing Functions on the fly is somehow required, as it's part of an update and debugging system. I am pretty sure this code / mechanics worked in a previous version of iojs.

I'm using v2.4.0. I could not find the code where it is injected, does anyone have hints where to look at?

bindargs = [ 'foo', 'bar' ];
bindargs.push('var fs = require("fs");');

var cb1 = Function.apply(Function, bindargs);
var cb2 = new Function(bindargs[0], bindargs[1], bindargs[2]);


console.log('Before CB2');
cb2();
console.log('After CB2');


console.log('Before CB1');
cb1();
console.log('After CB1');

[mscdex]

That code has never worked as-is, even with older node versions. The reason for the error is that some variables like require are not actually globals, but they are simply arguments passed to the closure that wraps the module (see here to see what is passed to the closure).

This can be confirmed by manually assigning global.require = require; before you create your functions.

[cookiengineer]

TIL!

Thanks for the hint, that cleared up what went wrong and what needs to be done to fix it :)
I was guessing that they were kind of a closure somewhere in the file inclusion hierarchy, but couldn't find the right spot in the code.