Commit Graph

21 Commits

Author SHA1 Message Date
Damien George d0e824387e py: Make mp_map_lookup not allocate memory on removal. 2014-04-05 23:33:12 +01:00
Damien George 8b0535e23f py: Change module globals from mp_map_t* to mp_obj_dict_t*.
Towards addressing issue #424.

Had a small increase to ROM usage (order 60 bytes).
2014-04-05 21:53:54 +01:00
Damien George 95004e5114 py: Fix delete operation on map/dict and set objects.
Hash table can now be completely full (ie now NULL entry) before a
resize is triggered.  Use sentinel value to indicate delete entry in the
table.
2014-04-05 17:17:19 +01:00
Paul Sokolovsky 4a088f4b61 map: When removing a key, don't NULL the entry, but mark as deleted.
When searching next time, such entry should be just skipped, not terminate
the search. It's known that marking techique is not efficient at the presense
of many removes, but namespace usage should not require many deletes, and
as for user dictionaries - well, open addressing map table with linear
rehashing and load factor of ~1 is not particularly efficient at all ;-).
TODO: May consider "shift other entries in cluster" approach as an
alternative.
2014-04-05 05:11:12 +03:00
Paul Sokolovsky e3f58c8380 map: Add mp_map_dump() (#ifdef'ed) to be handy when debugging maps. 2014-04-05 05:10:02 +03:00
Damien George df6567e634 Merge map.h into obj.h.
Pretty much everyone needs to include map.h, since it's such an integral
part of the Micro Python object implementation.  Thus, the definitions
are now in obj.h instead.  map.h is removed.
2014-03-30 13:54:02 +01:00
xbe efe3422394 py: Clean up includes.
Remove unnecessary includes. Add includes that improve portability.
2014-03-17 02:43:40 -07:00
Paul Sokolovsky 520e2f58a5 Replace global "static" -> "STATIC", to allow "analysis builds". Part 2. 2014-02-12 18:31:30 +02:00
Damien George 9a58d760c3 py: Allow mp_map_t to be initialised by a fixed-size, const table.
This allows keyword maps to be created directly from stack data.
2014-02-08 18:47:46 +00:00
Paul Sokolovsky 9a24a0465f Add mp_map_deinit() & mp_map_free() to finalize maps.
mp_map_deinit() finalizes static map, mp_map_free() - dynamic.
2014-01-25 02:04:01 +02:00
Damien George 55baff4c9b Revamp qstrs: they now include length and hash.
Can now have null bytes in strings.  Can define ROM qstrs per port using
qstrdefsport.h
2014-01-21 21:40:13 +00:00
John R. Lenton ae00d334c6 Implemented set.remove 2014-01-12 19:16:59 +00:00
John R. Lenton 2a24172cdc Implemented set.discard 2014-01-12 16:39:39 +00:00
John R. Lenton 1d7fb2f21b Implemented set.clear 2014-01-12 15:44:26 +00:00
Damien George 38a2da68c2 py: Stuff qstr in object pointer; keys for mp_map_t are now always mp_obj_t. 2014-01-08 17:33:12 +00:00
John R. Lenton be8fe5be2e Added dict.setdefault 2014-01-07 22:51:08 +00:00
John R. Lenton 0fcbaa442f implemented dict.pop 2014-01-07 22:51:08 +00:00
John R. Lenton 4ce6ceadca Added dict.clear.
Added 0 to the list of primes. Funky primes, these.
2014-01-07 22:51:08 +00:00
Damien 732407f1bf Change memory allocation API to require size for free and realloc. 2013-12-29 19:33:23 +00:00
Damien d99b05282d Change object representation from 1 big union to individual structs.
A big change.  Micro Python objects are allocated as individual structs
with the first element being a pointer to the type information (which
is itself an object).  This scheme follows CPython.  Much more flexible,
not necessarily slower, uses same heap memory, and can allocate objects
statically.

Also change name prefix, from py_ to mp_ (mp for Micro Python).
2013-12-21 18:17:45 +00:00
Damien 660365e14c py: split runtime into map, obj, builtin. 2013-12-17 18:27:24 +00:00