-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 01-03-12 21:31, Jon Rafkind wrote: > Recent problems with phases have led me to investigate how they > work in more detail. Here is a brief tutorial on what they are and > how they work with macros. The guide and reference have something > to say about phases but I don't think they go into enough detail.
Nice write-up Jon. Towards the end you give an example using syntax/parse and for that apparently you need to use for-template which introduces bindings at phase -1. Unfortunately phase -1 is not explained. One other thing that could use some explanation is why racket uses phases in the first place, given that other systems (I believe Larceny is the prime example) have implemented a phase-less or phase-inferring macro system. Marijn -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk9Ql0sACgkQp/VmCx0OL2xkxgCcD174z4B576rPaH6MrgMK2jWB GXkAoI2KHGgD1DA0R4ydq9OXMTfDY9QG =RJeN -----END PGP SIGNATURE----- ____________________ Racket Users list: http://lists.racket-lang.org/users
