Commit Graph

241 Commits

Author SHA1 Message Date
Damien George
05005f679e py: Remove mp_obj_str_builder and use vstr instead.
With this patch str/bytes construction is streamlined.  Always use a
vstr to build a str/bytes object.  If the size is known beforehand then
use vstr_init_len to allocate only required memory.  Otherwise use
vstr_init and the vstr will grow as needed.  Then use
mp_obj_new_str_from_vstr to create a str/bytes object using the vstr
memory.

Saves code ROM: 68 bytes on stmhal, 108 bytes on bare-arm, and 336 bytes
on unix x64.
2015-01-21 23:18:02 +00:00
Damien George
0b9ee86133 py: Add mp_obj_new_str_from_vstr, and use it where relevant.
This patch allows to reuse vstr memory when creating str/bytes object.
This improves memory usage.

Also saves code ROM: 128 bytes on stmhal, 92 bytes on bare-arm, and 88
bytes on unix x64.
2015-01-21 23:17:27 +00:00
Damien George
963a5a3e82 py, unix: Allow to compile with -Wsign-compare.
See issue #699.
2015-01-16 17:47:07 +00:00
Damien George
e233a55a29 py: Remove unnecessary BINARY_OP_EQUAL code that just checks pointers.
Previous patch c38dc3ccc7 allowed any
object to be compared with any other, using pointer comparison for a
fallback.  As such, existing code which checked for this case is no
longer needed.
2015-01-11 21:07:15 +00:00
Paul Sokolovsky
5f68094e10 py: mp_obj_new_int_from_float() supported only for MICROPY_PY_BUILTINS_FLOAT. 2014-12-30 00:34:54 +02:00
Paul Sokolovsky
12033df511 py: Partially fix float to int conversion.
This fixes conversion when float type has more mantissa bits than small int,
and float value has small exponent. This is for example the case of 32-bit
platform using doubles, and converting value of time.time(). Conversion of
floats with larg exponnet is still not handled correctly.
2014-12-30 00:22:50 +02:00
Damien George
9ddbe291c4 py: Add include guards to mpconfig,misc,qstr,obj,runtime,parsehelper. 2014-12-29 01:02:19 +00:00
Damien George
5318cc028a py: Tidy up a few function declarations. 2014-12-10 22:37:07 +00:00
Damien George
78d702c300 py: Allow builtins to be overridden.
This patch adds a configuration option (MICROPY_CAN_OVERRIDE_BUILTINS)
which, when enabled, allows to override all names within the builtins
module.  A builtins override dict is created the first time the user
assigns to a name in the builtins model, and then that dict is searched
first on subsequent lookups.  Note that this implementation doesn't
allow deleting of names.

This patch also does some refactoring of builtins code, creating the
modbuiltins.c file.

Addresses issue #959.
2014-12-09 16:19:48 +00:00
Paul Sokolovsky
46c3ab2004 modsys: Add sys.print_exception(exc, file=sys.stdout) function.
The function is modeled after traceback.print_exception(), but unbloated,
and put into existing module to save overhead on adding another module.
Compliant traceback.print_exception() is intended to be implemented in
micropython-lib in terms of sys.print_exception().

This change required refactoring mp_obj_print_exception() to take pfenv_t
interface arguments.

Addresses #751.
2014-12-08 20:25:49 +00:00
Damien George
be6d8be91e py: Rename mp_obj_int_get to mp_obj_int_get_truncated; fix struct.pack.
mp_obj_int_get_truncated is used as a "fast path" int accessor that
doesn't check for overflow and returns the int truncated to the machine
word size, ie mp_int_t.

Use mp_obj_int_get_truncated to fix struct.pack when packing maximum word
sized values.

Addresses issues #779 and #998.
2014-12-05 23:13:52 +00:00
Damien George
3b603f29ec Use MP_DEFINE_CONST_DICT macro to define module dicts.
This is just a clean-up of the code.  Generated code is exactly the
same.
2014-11-29 14:39:27 +00:00
Paul Sokolovsky
e5dbe1e283 map: Add empty fixed map.
Useful when need to call kw-receiving functions  without any keywords
from C, etc.
2014-11-27 17:37:07 +00:00
Paul Sokolovsky
838eb1fa2d stream: Implement seek operation support via ioctl, wrapped in generic method.
Also, implement for unix port.
2014-11-17 00:16:14 +02:00
Paul Sokolovsky
f4a6a577ab stream: Convert .ioctl() to take fixed number of args.
This is more efficient, as allows to use register calling convention.
If needed, a structure pointer can be passed as argument to pass more
data.
2014-11-17 00:16:14 +02:00
Damien George
124df6f8d0 py: Add mp_pending_exception global variable, for VM soft interrupt.
This allows to implement KeyboardInterrupt on unix, and a much safer
ctrl-C in stmhal port.  First ctrl-C is a soft one, with hope that VM
will notice it; second ctrl-C is a hard one that kills anything (for
both unix and stmhal).

One needs to check for a pending exception in the VM only for jump
opcodes.  Others can't produce an infinite loop (infinite recursion is
caught by stack check).
2014-10-25 23:37:57 +01:00
Paul Sokolovsky
e5a3759ff5 py: Factor out mp_obj_is_package() function. 2014-10-25 22:31:33 +03:00
Damien George
1084b0f9c2 py: Store bytecode arg names in bytecode (were in own array).
This saves a lot of RAM for 2 reasons:

1. For functions that don't have default values, var args or var kw
args (which is a large number of functions in the general case), the
mp_obj_fun_bc_t type now fits in 1 GC block (previously needed 2 because
of the extra pointer to point to the arg_names array).  So this saves 16
bytes per function (32 bytes on 64-bit machines).

2. Combining separate memory regions generally saves RAM because the
unused bytes at the end of the GC block are saved for 1 of the blocks
(since that block doesn't exist on its own anymore).  So generally this
saves 8 bytes per function.

Tested by importing lots of modules:

- 64-bit Linux gave about an 8% RAM saving for 86k of used RAM.
- pyboard gave about a 6% RAM saving for 31k of used RAM.
2014-10-25 20:23:13 +01:00
Damien George
dd4f4530ab py: Add builtin memoryview object (mostly using array code). 2014-10-23 13:34:35 +01:00
Damien George
e7a478204a py: Remove unused and unneeded SystemError exception.
It's purpose is for internal errors that are not catastrophic (ie not as
bad as RuntimeError).  Since we don't use it, we don't need it.
2014-10-22 19:42:55 +01:00
Damien George
20f59e182e py: Make mp_const_empty_bytes globally available. 2014-10-21 21:02:56 +01:00
Damien George
42f3de924b py: Convert [u]int to mp_[u]int_t where appropriate.
Addressing issue #50.
2014-10-03 17:44:14 +00:00
Damien George
8b03d944e2 py: Remove IOError since it's deprecated; use OSError instead.
In CPython IOError (and EnvironmentError) is deprecated and aliased to
OSError.  All modules that used to raise IOError now raise OSError (or a
derived exception).

In Micro Python we never used IOError (except 1 place, incorrectly) and
so don't need to keep it.

See http://legacy.python.org/dev/peps/pep-3151/ for background.
2014-09-30 13:59:30 +00:00
Damien George
4bcd04bcad py: Tidy up exception matching; allow matching of tuple of exceptions.
Addresses issue #864.
2014-09-25 15:49:26 +01:00
Damien George
612045f53f py: Add native json printing using existing print framework.
Also add start of ujson module with dumps implemented.  Enabled in unix
and stmhal ports.  Test passes on both.
2014-09-17 22:56:34 +01:00
Damien George
8594ce2280 py: Implement divmod, % and proper // for floating point.
Tested and working on unix and pyboard.
2014-09-13 18:43:09 +01:00
Damien George
953074315e py: Enable struct/binary-helper to parse q and Q sized ints.
Addresses issue #848.
2014-09-10 22:10:33 +01:00
Damien George
c7687ad7e6 py: Rename mp_builtin_id to mp_obj_id and make it public. 2014-09-07 20:41:09 +01:00
Damien George
6c9c7bc75a stmhal: Implement generic select.select and select.poll. 2014-09-07 20:40:32 +01:00
Damien George
c8c44a4c2e py: Add ioctl method to stream protocol; add initial modselect. 2014-09-07 20:40:10 +01:00
Damien George
4d91723587 py: Remove use of int type in obj.h.
Part of code cleanup, working towards resolving issue #50.
2014-08-30 14:28:06 +01:00
Damien George
d182b98a37 py: Change all uint to mp_uint_t in obj.h.
Part of code cleanup, working towards resolving issue #50.
2014-08-30 14:19:41 +01:00
Damien George
9c4cbe2ac0 py: Make tuple and list use mp_int_t/mp_uint_t.
Part of code cleanup, to resolve issue #50.
2014-08-30 14:04:14 +01:00
Damien George
93965e726f py: Make map, dict, set use mp_int_t/mp_uint_t exclusively.
Part of code cleanup, towards resolving issue #50.
2014-08-30 13:23:35 +01:00
Damien George
ecc88e949c Change some parts of the core API to use mp_uint_t instead of uint/int.
Addressing issue #50, still some way to go yet.
2014-08-30 00:35:11 +01:00
Damien George
17ae2395c2 py: Use memmove instead of memcpy when appropriate.
Found this bug by running unix/ tests with DEBUG=1 enabled when
compiling.
2014-08-29 21:07:54 +01:00
Damien George
a75b02ea9b py: Improve efficiency of MP_OBJ_IS_STR_OR_BYTES.
Saves ROM (16 on stmhal, 240 on 64-bit unix) and should be quicker since
there is 1 less branch.
2014-08-27 09:20:30 +01:00
Dave Hylands
b7f7c655ed Make int(b'123') work properly. 2014-08-26 19:15:04 -07:00
Damien George
3c658a4e75 py: Fix bug where GC collected native/viper/asm function data.
Because (for Thumb) a function pointer has the LSB set, pointers to
dynamic functions in RAM (eg native, viper or asm functions) were not
being traced by the GC.  This patch is a comprehensive fix for this.

Addresses issue #820.
2014-08-24 16:28:17 +01:00
Damien George
2ac4af6946 py: Allow viper to have type annotations.
Viper functions can now be annotated with the type of their arguments
and return value.  Eg:

@micropython.viper
def f(x:int) -> int:
    return x + 1
2014-08-15 16:45:41 +01:00
Damien George
4c03b3a899 py: Implement builtin reversed() function.
reversed function now implemented, and works for tuple, list, str, bytes
and user objects with __len__ and __getitem__.

Renamed mp_builtin_len to mp_obj_len to make it publically available (eg
for reversed).
2014-08-12 18:33:40 +01:00
Paul Sokolovsky
7133d91773 py: mp_buffer_info_t::buf may be valid, but NULL for empty objects.
This happens for example for zero-size arrays. As .get_buffer() method now
has explicit return value, it's enough to distinguish success vs failure
of getting buffer.
2014-08-10 16:22:48 +03:00
Damien George
bb4c6f35c6 py: Make MP_OBJ_NEW_SMALL_INT cast arg to mp_int_t itself.
Addresses issue #724.
2014-07-31 10:49:14 +01:00
Damien George
5f27a7e811 py: Add mp_obj_str_builder_end_with_len.
This allows to create str's with a smaller length than initially asked
for.
2014-07-31 10:29:56 +01:00
Damien George
07133415d2 Merge pull request #738 from dhylands/except-args
Add support for storing args during an exception raised by an irq.
2014-07-29 23:15:35 +01:00
Damien George
adf0f2ae1a py: Change stream protocol API: fns return uint; is_text for text. 2014-07-27 22:38:58 +01:00
Dave Hylands
5b7fd20fea Add support for storing args during an exception raised by an irq.
The user code should call micropython.alloc_emergency_exception_buf(size)
where size is the size of the buffer used to print the argument
passed to the exception.

With the test code from #732, and a call to
micropython.alloc_emergenncy_exception_buf(100) the following error is
now printed:
```python
>>> import heartbeat_irq
Uncaught exception in Timer(4) interrupt handler
Traceback (most recent call last):
  File "0://heartbeat_irq.py", line 14, in heartbeat_cb
NameError: name 'led' is not defined
```
2014-07-25 14:00:06 -07:00
Damien George
40f3c02682 Rename machine_(u)int_t to mp_(u)int_t.
See discussion in issue #50.
2014-07-03 13:25:24 +01:00
Paul Sokolovsky
2ec38a17d4 objstr: Be 8-bit clean even for repr().
This will allow roughly the same behavior as Python3 for non-ASCII strings,
for example, print("<phrase in non-Latin script>".split()) will print list
of words, not weird hex dump (like Python2 behaves). (Of course, that it
will print list of words, if there're "words" in that phrase at all, separated
by ASCII-compatible whitespace; that surely won't apply to every human
language in existence).
2014-06-14 01:21:13 +03:00
Paul Sokolovsky
0c0f446840 objfun: Remove no longer used mp_obj_fun_prepare_simple_args(). 2014-06-11 20:43:47 +03:00