-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 David,
On 13/01/13 04:46, David Rajchenbach-Teller wrote: > As a base for discussion, I have put together a small RFC based on > promises: https://wiki.mozilla.org/RFC/TaskDependencies You seem to be on the right track. You've probably already worked out that you'll need to write some dependency code to make sure you execute the then() and run() calls in the right order. There will also be some threading considerations to deal with. Reactive Programming could be viewed as a more general case of what you're intending to do. You could consider RP to be an enhanced version of the observer pattern that deals with more system wide issues and therefore scales better. If you consider your proposal in terms of RP then you would say: * A Promise is a Behavior of boolean. It starts as false and becomes true when something happens, which could be a timer. Behaviors can contain arbitrary types. * A Promise can be composed of other promises using boolean operators. Behaviors can be composed with arbitrary functions * A Barrier is an Event that fires when a promise changes value. Events can be triggered when a Behavior changes value and may either be used to create other Events, or they can have ordinary listeners. You could trivially write your promise API in terms of Sodium[1]. https://github.com/kentuckyfriedtakahe/sodium Anthony [1] The C++ version of Sodium uses C++11 closure syntax so it requires gcc >= 4.5 to build. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJQ9benAAoJECKjmZddR/QLtaIIAMtKA67+WIHD3wFTVO0dcVaC qBrLq+I25TUjn8KsZO7NJ1m6nZcuhOU8JgkX2hDyK03vtoBnGefXqH1RM5IE41Wl iBnulV9OvdTIhN0SRGmaI3hR+VrRnXGVi41DCFPjMXiLmnNdmdpHF9P/2t/sMZX2 Ve/Ti/YfUZgUqprS8dut4zEnT8wZ8OUKNSHYW6NKWwT9a8ubpesNSn4+72ifJyJa ZeJbM33JMOFzp1Y56MVl2f6Zn7RcreJhE7Bm4tQ+U037/1oEvD68Qh3vAKksHF9X vfQnbjcUfMdkPSLoxOCH2eNVReOnxf8p666hIikOBMO4/QigLcAmOKDxQZn8VU4= =v9am -----END PGP SIGNATURE----- _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
