Commit Graph

141 Commits

Author SHA1 Message Date
Paul Sokolovsky 5ab5ac5448 modbuiltins: Add NotImplemented builtin constant.
From https://docs.python.org/3/library/constants.html#NotImplemented :
"Special value which should be returned by the binary special methods
(e.g. __eq__(), __lt__(), __add__(), __rsub__(), etc.) to indicate
that the operation is not implemented with respect to the other type;
may be returned by the in-place binary special methods (e.g. __imul__(),
__iand__(), etc.) for the same purpose. Its truth value is true."

Some people however appear to abuse it to mean "no value" when None is
a legitimate value (don't do that).
2015-05-04 19:45:53 +03:00
Paul Sokolovsky 0116218fa8 modmachine: Add new module to access hardware, starting with physical memory.
Refactored from "stm" module, provides mem8, mem16, mem32 objects with
array subscript syntax.
2015-05-04 13:05:12 +03:00
Paul Sokolovsky 8b85d14b92 modsys: Add basic sys.exc_info() implementation.
The implementation is very basic and non-compliant and provided solely for
CPython compatibility. The function itself is bad Python2 heritage, its
usage is discouraged.
2015-04-25 03:49:23 +03:00
Damien George 5aa311d330 py: Add attrtuple object, for space-efficient tuples with attr access.
If you need the functionality of a namedtuple but will only make 1 or a
few instances, then use an attrtuple instead.
2015-04-21 14:14:24 +00:00
= 5008972fef py/inlinethumb: Support for core floating point instructions.
Adds support for the following Thumb2 VFP instructions, via the option
MICROPY_EMIT_INLINE_THUMB_FLOAT:

vcmp
vsqrt
vneg
vcvt_f32_to_s32
vcvt_s32_to_f32
vmrs
vmov
vldr
vstr
vadd
vsub
vmul
vdiv
2015-04-19 15:47:05 +01:00
Damien George 7f9d1d6ab9 py: Overhaul and simplify printf/pfenv mechanism.
Previous to this patch the printing mechanism was a bit of a tangled
mess.  This patch attempts to consolidate printing into one interface.

All (non-debug) printing now uses the mp_print* family of functions,
mainly mp_printf.  All these functions take an mp_print_t structure as
their first argument, and this structure defines the printing backend
through the "print_strn" function of said structure.

Printing from the uPy core can reach the platform-defined print code via
two paths: either through mp_sys_stdout_obj (defined pert port) in
conjunction with mp_stream_write; or through the mp_plat_print structure
which uses the MP_PLAT_PRINT_STRN macro to define how string are printed
on the platform.  The former is only used when MICROPY_PY_IO is defined.

With this new scheme printing is generally more efficient (less layers
to go through, less arguments to pass), and, given an mp_print_t*
structure, one can call mp_print_str for efficiency instead of
mp_printf("%s", ...).  Code size is also reduced by around 200 bytes on
Thumb2 archs.
2015-04-16 14:30:16 +00:00
Damien George 4dea922610 py: Adjust some spaces in code style/format, purely for consistency. 2015-04-09 15:29:54 +00:00
Paul Sokolovsky 282ca09f8e py: Add MICROPY_PY_BUILTINS_REVERSED, disable for minimal ports. 2015-04-07 00:17:11 +03:00
Paul Sokolovsky e2d44e30c7 py: Add MICROPY_PY_BUILTINS_ENUMERATE, disable for minimal ports. 2015-04-06 23:51:29 +03:00
Paul Sokolovsky ac2f7a7f6a objstr: Add .splitlines() method.
splitlines() occurs ~179 times in CPython3 standard library, so was
deemed worthy to implement. The method has subtle semantic differences
from just .split("\n"). It is also defined as working for any end-of-line
combination, but this is currently not implemented - it works only with
LF line-endings (which should be OK for text strings on any platforms,
but not OK for bytes).
2015-04-04 00:09:48 +03:00
Damien George 567184e21e py: Allow configurable object representation, with 2 different options. 2015-04-03 14:11:13 +01:00
Paul Sokolovsky 7f1c98177b vm: Support strict stackless mode, with proper exception reporting.
I.e. in this mode, C stack will never be used to call a Python function,
but if there's no free heap for a call, it will be reported as
RuntimeError (as expected), not MemoryError.
2015-04-03 00:26:47 +03:00
Paul Sokolovsky 2039757b85 vm: Initial support for calling bytecode functions w/o C stack ("stackless"). 2015-04-03 00:03:07 +03:00
stijn 28fa84b445 py: Add optional support for descriptors' __get__ and __set__ methods.
Disabled by default.  Enabled on unix and windows ports.
2015-03-26 23:55:14 +00:00
stijn 3cc17c69ff py: Allow retrieving a function's __name__.
Disabled by default.  Enabled on unix and stmhal ports.
2015-03-20 23:13:32 +00:00
Paul Sokolovsky 0ef01d0a75 py: Implement core of OrderedDict type.
Given that there's already support for "fixed table" maps, which are
essentially ordered maps, the implementation of OrderedDict just extends
"fixed table" maps by adding an "is ordered" flag and add/remove
operations, and reuses 95% of objdict code, just making methods tolerant
to both dict and OrderedDict.

Some things are missing so far, like CPython-compatible repr and comparison.

OrderedDict is Disabled by default; enabled on unix and stmhal ports.
2015-03-20 17:26:10 +00:00
Damien George 42e0c59308 py: Add MICROPY_COMP_{DOUBLE,TRIPLE}_TUPLE_ASSIGN config options.
These allow to fine-tune the compiler to select whether it optimises
tuple assignments of the form a, b = c, d and a, b, c = d, e, f.
Sensible defaults are provided.
2015-03-14 13:11:35 +00:00
Peter D. Gray b2a237d337 py: Add support for start/stop/step attributes of builtin range object. 2015-03-11 20:02:06 +00:00
Damien George d891452a73 py: Add MICROPY_MALLOC_USES_ALLOCATED_SIZE to allow simpler malloc API. 2015-03-03 21:23:13 +00:00
Paul Sokolovsky cefcbb22b2 objarray: Implement array slice assignment.
This is rarely used feature which takes enough code to implement, so is
controlled by MICROPY_PY_ARRAY_SLICE_ASSIGN config setting, default off.
But otherwise it may be useful, as allows to update arbitrary-sized data
buffers in-place.

Slice is yet to implement, and actually, slice assignment implemented in
such a way that RHS of assignment should be array of the exact same item
typecode as LHS. CPython has it more relaxed, where RHS can be any sequence
of compatible types (e.g. it's possible to assign list of int's to a
bytearray slice).

Overall, when all "slice write" features are implemented, it may cost ~1KB
of code.
2015-02-27 22:17:15 +02:00
nhtshot 5d323defe4 py: Update parse.c&mpconfig.h to reflect rename of mp_lexer_show_token.
This function is only used when DEBUG_PRINTERS and USE_RULE_NAME are
enabled.
2015-02-23 21:36:05 +00:00
Damien George 5cbeacebdb py: Make math special functions configurable and disabled by default.
The implementation of these functions is very large (order 4k) and they
are rarely used, so we don't enable them by default.

They are however enabled in stmhal and unix, since we have the room.
2015-02-22 14:48:18 +00:00
Damien George 28631537bd py: Add MICROPY_OBJ_BASE_ALIGNMENT to help with 16-bit ports. 2015-02-08 13:42:00 +00:00
Paul Sokolovsky 98c4bc3fac py: Add MICROPY_PY_ALL_SPECIAL_METHODS and __iadd__ special method under it. 2015-01-31 00:35:56 +02:00
Paul Sokolovsky 640e0b221e py: Implement very simple frozen modules support.
Only modules (not packages) supported now. Source modules can be converted
to frozen module structures using tools/make-frozen.py script.
2015-01-20 11:52:12 +02:00
Paul Sokolovsky 87bc8e2b3d pyexec: Add event-driven variant pyexec_friendly_repl().
pyexec_friendly_repl_process_char() and friends, useful for ports which
integrate into existing cooperative multitasking system.

Unlike readline() refactor before, this was implemented in less formal,
trial&error process, minor functionality regressions are still known
(like soft&hard reset support). So, original loop-based pyexec_friendly_repl()
is left intact, specific implementation selectable by config setting.
2015-01-16 01:30:42 +02:00
Damien George 2127e9a844 py, unix: Trace root pointers with native emitter under unix port.
Native code has GC-heap pointers in it so it must be scanned.  But on
unix port memory for native functions is mmap'd, and so it must have
explicit code to scan it for root pointers.
2015-01-14 00:11:09 +00:00
Damien George 95836f8439 py: Add MICROPY_QSTR_BYTES_IN_LEN config option, defaulting to 1.
This new config option sets how many fixed-number-of-bytes to use to
store the length of each qstr.  Previously this was hard coded to 2,
but, as per issue #1056, this is considered overkill since no-one
needs identifiers longer than 255 bytes.

With this patch the number of bytes for the length is configurable, and
defaults to 1 byte.  The configuration option filters through to the
makeqstrdata.py script.

Code size savings going from 2 to 1 byte:
- unix x64 down by 592 bytes
- stmhal down by 1148 bytes
- bare-arm down by 284 bytes

Also has RAM savings, and will be slightly more efficient in execution.
2015-01-11 22:27:30 +00:00
Damien George ddd1e18801 py: Add config option MICROPY_COMP_MODULE_CONST for module consts.
Compiler optimises lookup of module.CONST when enabled (an existing
feature).  Disabled by default; enabled for unix, windows, stmhal.
Costs about 100 bytes ROM on stmhal.
2015-01-10 14:07:24 +00:00
Damien George 89deec0bab py: Add MICROPY_PY_MICROPYTHON_MEM_INFO to enable mem-info funcs.
This allows to enable mem-info functions in micropython module, even if
MICROPY_MEM_STATS is not enabled.  In this case, you get mem_info and
qstr_info but not mem_{total,current,peak}.
2015-01-09 20:12:54 +00:00
Damien George 4a5895c4eb py: Disable stack checking by default; enable on most ports. 2015-01-09 00:10:55 +00:00
Damien George 7ee91cf861 py: Add option to cache map lookup results in bytecode.
This is a simple optimisation inspired by JITing technology: we cache in
the bytecode (using 1 byte) the offset of the last successful lookup in
a map. This allows us next time round to check in that location in the
hash table (mp_map_t) for the desired entry, and if it's there use that
entry straight away.  Otherwise fallback to a normal map lookup.

Works for LOAD_NAME, LOAD_GLOBAL, LOAD_ATTR and STORE_ATTR opcodes.

On a few tests it gives >90% cache hit and greatly improves speed of
code.

Disabled by default.  Enabled for unix and stmhal ports.
2015-01-07 21:07:23 +00:00
Damien George b4b10fd350 py: Put all global state together in state structures.
This patch consolidates all global variables in py/ core into one place,
in a global structure.  Root pointers are all located together to make
GC tracing easier and more efficient.
2015-01-07 20:33:00 +00:00
Damien George fd40a9c38e py: Make GC's STACK_SIZE definition a proper MICROPY_ config variable. 2015-01-01 22:04:46 +00:00
Paul Sokolovsky 8a8c1fc82f py: Add basic framework for issuing compile/runtime warnings. 2015-01-01 22:09:18 +02:00
Damien George 9ddbe291c4 py: Add include guards to mpconfig,misc,qstr,obj,runtime,parsehelper. 2014-12-29 01:02:19 +00:00
Paul Sokolovsky 361909e3ca py: Add MP_LIKELY(), MP_UNLIKELY() macros to help branch prediction. 2014-12-29 00:51:24 +02:00
Damien George 2a3e2b9033 py: Add execfile function (from Python 2); enable in stmhal port.
Adds just 60 bytes to stmhal binary.  Addresses issue #362.
2014-12-19 13:36:17 +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 bfdc205934 modubinascii: Add, with hexlify() implementation. 2014-11-29 13:52:47 +00:00
Paul Sokolovsky f4b19c873f moduhashlib: Initial module skeleton. 2014-11-22 14:47:46 +02:00
Damien George 1e9a92f84f py: Use shorter, static error msgs when ERROR_REPORTING_TERSE enabled.
Going from MICROPY_ERROR_REPORTING_NORMAL to
MICROPY_ERROR_REPORTING_TERSE now saves 2020 bytes ROM for ARM Thumb2,
and 2200 bytes ROM for 32-bit x86.

This is about a 2.5% code size reduction for bare-arm.
2014-11-06 17:36:16 +00:00
Damien George 7860c2a68a py: Fix some macros defines; cleanup some includes. 2014-11-05 21:16:41 +00:00
Paul Sokolovsky 346aacf27f unix: fast: Set initial module dict size big to have high pystone score.
For this, introduce MICROPY_MODULE_DICT_SIZE config setting.
2014-11-05 00:30:21 +02:00
Paul Sokolovsky b1422de12f py: Allow to override port config file and thus have >1 configs per port.
Use it like:

make CFLAGS_EXTRA='-DMP_CONFIGFILE="<mpconfigport_my.h>"'
2014-10-29 23:37:45 +00:00
Damien George c9fc620723 py: Implement compile builtin, enabled only on unix port.
This should be pretty compliant with CPython, except perhaps for some
corner cases to do with globals/locals context.

Addresses issue #879.
2014-10-25 22:07:25 +01:00
Damien George dd4f4530ab py: Add builtin memoryview object (mostly using array code). 2014-10-23 13:34:35 +01:00
Damien George f5d69794a8 extmod: Add uheapq module. 2014-10-22 23:20:15 +01:00
Damien George 4859edb95b py: Fix dummy definition of BEGIN/END_ATOMIC_SECTION. 2014-10-15 17:33:24 +00:00
Paul Sokolovsky 911c00bbc5 modzlibd: Remove, superceded by moduzlib. 2014-10-13 14:13:22 +03:00