Skip to content

Instantly share code, notes, and snippets.

@kriszyp
Created October 27, 2010 21:08
Show Gist options
  • Save kriszyp/650000 to your computer and use it in GitHub Desktop.
Save kriszyp/650000 to your computer and use it in GitHub Desktop.
Add AMD/define() support to NodeJS
var currentModule, defaultCompile = module.constructor.prototype._compile;
module.constructor.prototype._compile = function(content, filename){
currentModule = this;
try{
return defaultCompile.call(this, content, filename);
}
finally {
currentModule = null;
}
};
define = function (id, injects, factory) {
if (currentModule == null) {
throw new Error("define() may only be called during module factory instantiation");
}
var module = currentModule;
var req = function(relativeId){
if(relativeId.charAt(0) === '.'){
relativeId = id.substring(0, id.lastIndexOf('/') + 1) + relativeId;
while(lastId !== relativeId){
var lastId = relativeId;
relativeId = relativeId.replace(/\/[^\/]*\/\.\.\//,'/');
}
relativeId = relativeId.replace(/\/\.\//g,'/');
}
return require(relativeId);
};
if (!factory) {
// two or less arguments
factory = injects;
if (factory) {
// two args
if (typeof id === "string") {
if (id !== module.id) {
throw new Error("Can not assign module to a different id than the current file");
}
// default injects
injects = ["require", "exports", "module"];
}
else{
// anonymous, deps included
injects = id;
}
}
else {
// only one arg, just the factory
factory = id;
injects = ["require", "exports", "module"];
}
}
id = module.id;
if (typeof factory !== "function"){
// we can just provide a plain object
return module.exports = factory;
}
var returned = factory.apply(module.exports, injects.map(function (injection) {
switch (injection) {
// check for CommonJS injection variables
case "require": return req;
case "exports": return module.exports;
case "module": return module;
default:
// a module dependency
return req(injection);
}
}));
if(returned){
// since AMD encapsulates a function/callback, it can allow the factory to return the exports.
module.exports = returned;
}
};
@fitzgen
Copy link

fitzgen commented Apr 19, 2011

Kris,

After running in to some problems with requirejs's node shim, I am looking in to using this shim instead. In my first tests, everything seems to be working out alright, and so I would like to inquire as to the licensing status of this piece of code. Can you add a license to the top of this file so that I can use it guilt free?

Thanks for taking the time to write this,

Nick

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment