richthegeek / ajs Goto Github PK

Currently contexts are passed around on objects in a rubbish manner. This isn't an issue yet because I've not done much with functions, but it will quickly become untenable.

Solution is to implement a Context class which has a pointer to it's parent context. The context class has several methods (currently in index.coffee):

1. Context::constructor(Context) - instantiates a new context pointing to the passed Context as it's parent
2. Context::get(key, callback) - iterates through to parent until it exists, and returns it when it does
3. Context::set(key, value, callback) - iterates through to parent until it is found and sets it there, else sets it on the current context.
4. Context::unset(key, callback) - like Context::set but issues a delete when found.

Each node has a context as before, but this stop certain classes of bugs before they occur.