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<title>suspect-devices/circuitpython/extmod/modbtree.c, branch 4.0.0-beta.7</title>
<subtitle>CircuitPython - a Python implementation for teaching coding with microcontrollers</subtitle>
<id>https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=4.0.0-beta.7</id>
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<updated>2017-11-24T03:48:23+00:00</updated>
<entry>
<title>py/runtime: Add MP_BINARY_OP_CONTAINS as reverse of MP_BINARY_OP_IN.</title>
<updated>2017-11-24T03:48:23+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-11-24T02:04:24+00:00</published>
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<id>urn:sha1:5e34a113eaaf736fb4f703a3ee0892e1705d0a63</id>
<content type='text'>
Before this patch MP_BINARY_OP_IN had two meanings: coming from bytecode it
meant that the args needed to be swapped, but coming from within the
runtime meant that the args were already in the correct order.  This lead
to some confusion in the code and comments stating how args were reversed.
It also lead to 2 bugs: 1) containment for a subclass of a native type
didn't work; 2) the expression "{True} in True" would illegally succeed and
return True.  In both of these cases it was because the args to
MP_BINARY_OP_IN ended up being reversed twice.

To fix these things this patch introduces MP_BINARY_OP_CONTAINS which
corresponds exactly to the __contains__ special method, and this is the
operator that built-in types should implement.  MP_BINARY_OP_IN is now only
emitted by the compiler and is converted to MP_BINARY_OP_CONTAINS by
swapping the arguments.
</content>
</entry>
<entry>
<title>all: Remove inclusion of internal py header files.</title>
<updated>2017-10-04T01:37:50+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-10-04T01:37:50+00:00</published>
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<id>urn:sha1:a3dc1b1957d2c96d7c60c2c629c95077b03488a1</id>
<content type='text'>
Header files that are considered internal to the py core and should not
normally be included directly are:
    py/nlr.h - internal nlr configuration and declarations
    py/bc0.h - contains bytecode macro definitions
    py/runtime0.h - contains basic runtime enums

Instead, the top-level header files to include are one of:
    py/obj.h - includes runtime0.h and defines everything to use the
        mp_obj_t type
    py/runtime.h - includes mpstate.h and hence nlr.h, obj.h, runtime0.h,
        and defines everything to use the general runtime support functions

Additional, specific headers (eg py/objlist.h) can be included if needed.
</content>
</entry>
<entry>
<title>all: Convert mp_uint_t to mp_unary_op_t/mp_binary_op_t where appropriate</title>
<updated>2017-08-29T03:16:30+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-08-29T03:04:01+00:00</published>
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<id>urn:sha1:58321dd9854d71a96e5db2d361e0efc05d9de8cf</id>
<content type='text'>
The unary-op/binary-op enums are already defined, and there are no
arithmetic tricks used with these types, so it makes sense to use the
correct enum type for arguments that take these values.  It also reduces
code size quite a bit for nan-boxing builds.
</content>
</entry>
<entry>
<title>all: Don't include system errno.h when it's not needed.</title>
<updated>2017-07-24T08:43:14+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-07-24T08:43:14+00:00</published>
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<id>urn:sha1:aa7be82a4dff59b22763abbe1bd5e74c0e37b453</id>
<content type='text'>
</content>
</entry>
<entry>
<title>extmod: Update for changes to mp_obj_str_get_data.</title>
<updated>2017-03-29T01:56:45+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-03-25T08:48:44+00:00</published>
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<id>urn:sha1:204ded848e114208b8ecef0b683df71b77af5b5a</id>
<content type='text'>
</content>
</entry>
<entry>
<title>py: Add iter_buf to getiter type method.</title>
<updated>2017-02-16T07:38:06+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2016-01-09T23:14:54+00:00</published>
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<id>urn:sha1:ae8d86758631e62466a55d179897d2111c3cb1c1</id>
<content type='text'>
Allows to iterate over the following without allocating on the heap:
- tuple
- list
- string, bytes
- bytearray, array
- dict (not dict.keys, dict.values, dict.items)
- set, frozenset

Allows to call the following without heap memory:
- all, any, min, max, sum

TODO: still need to allocate stack memory in bytecode for iter_buf.
</content>
</entry>
<entry>
<title>extmod/modbtree: Rename "sync" method to "flush" for consistency.</title>
<updated>2016-12-04T22:50:55+00:00</updated>
<author>
<name>Paul Sokolovsky</name>
<email>pfalcon@users.sourceforge.net</email>
</author>
<published>2016-12-04T22:50:55+00:00</published>
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<id>urn:sha1:4463d8a910c9e40a81461f5be20aef28096cbe1d</id>
<content type='text'>
Rename recently introduced "sync" method to "flush" for consistency with
usual files.
</content>
</entry>
<entry>
<title>extmod/modbtree: Add method to sync the database.</title>
<updated>2016-12-02T06:30:53+00:00</updated>
<author>
<name>w4kpm</name>
<email>kelly@fammcdonald.net</email>
</author>
<published>2016-11-23T02:45:58+00:00</published>
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<id>urn:sha1:ec22d1739d256908f94f8c2c61a31b391f454fcf</id>
<content type='text'>
If you have longish operations on the db (such as logging data) it may
be desirable to periodically sync the database to the disk.  The added
btree.sync() method merely exposes the berkley __bt_sync function to the
user.
</content>
</entry>
<entry>
<title>extmod: Use mp_raise_OSError helper function.</title>
<updated>2016-10-07T02:52:14+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2016-10-07T02:52:14+00:00</published>
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<id>urn:sha1:75af908c0ec2a0d47e6aded15b35cd630f93d48b</id>
<content type='text'>
</content>
</entry>
<entry>
<title>all: Remove 'name' member from mp_obj_module_t struct.</title>
<updated>2016-09-21T14:23:16+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2016-09-21T00:52:53+00:00</published>
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<id>urn:sha1:93c4a6a3f70e389b466fbc7a4f1ad2e1df87c93f</id>
<content type='text'>
One can instead lookup __name__ in the modules dict to get the value.
</content>
</entry>
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