Decorators for functions

[Jonathan Bond-Caron]

On Thu Oct 22 07:44 AM, Andreas Rossberg wrote:
> > determined at creation time, allowing for massive engine optimization,
> 

Ya I'm not sure from which hat "massive engine optimization" comes from? 

What's meant is likely using decorators as annotations (compile time optimizations hints):
http://www.google.com/patents/US7013458

Or 'ambient decorators':
https://github.com/jonathandturner/brainstorming/blob/master/README.md#c6-ambient-decorators

There's 2 patterns (maybe more?):
(a) Tagging a 'tree transformation'  on a node.
(b) Metadata at compile time on a node.

The thing about (b) is it can easily live outside of the code (like in typescript where you have an optional header/declaration file)

With (a), it seems more conservative to see how it gets used with classes before bolting on to functions (opinion: end result in java is not something to be proud of).