Implementation of the proposed CommonJS module.declare function for node.js

declare.js

if (!module.constructor.prototype.declare) {
	    module.constructor.prototype.declare = function(deps, factory) {
	    if (!factory)
	        factory = deps;
	        
	    var _self = this;
	    var req = function(id) {
	        if (id.indexOf("./") == 0)
	            id = _self.filename.match(/(.*\/)/)[1] + id.slice(2)
	        return require(id);
	    }
	    factory(req, this.exports, this);
	}
}