With unicode enabled, this patch allows reading a fixed number of
characters from text-mode streams; eg file.read(5) will read 5 unicode
chars, which can made of more than 5 bytes.
For an ASCII stream (ie no chars > 127) it only needs to do 1 read. If
there are lots of non-ASCII chars in a stream, then it needs multiple
reads of the underlying object.
Adds a new test for this case. Enables unicode support by default on
unix and stmhal ports.
dummy_data field is accessed as uint value (e.g.
in emit_write_bytecode_byte_ptr), but is not aligned as such, which causes
bus errors or incorrect behavior on any arch requiring strictly aligned
data (ARM pre-v7, MIPS, etc, etc).
Conflicts:
stmhal/pin_named_pins.c
stmhal/readline.c
Renamed HAL_H to MICROPY_HAL_H. Made stmhal/mphal.h which intends to
define the generic Micro Python HAL, which in stmhal sits above the ST
HAL.
Native emitter can now compile try/except blocks using nlr_push/nlr_pop.
It probably only works for 1 level of exception handling. It doesn't
work on Thumb (only x64).
Native emitter can also handle some additional op codes.
With this patch, 198 tests now pass using "-X emit=native" option to
micropython.
- rearrange/add definitions that were not there so it's easier to compare both
- use MICROPY_PY_SYS_PLATFORM in main.c since it's available anyway
- define EWOULDBLOCK, it is missing from ingw32
As stack checking is enabled by default, ports which don't call
stack_ctrl_init() are broken now (report RuntimeError on startup). Save
them trouble and just init stack control framework in interpreter init.
Squashed commit of the following:
commit 99dc21b67a
Author: Chris Angelico <rosuav@gmail.com>
Date: Thu Jun 12 02:18:54 2014 +1000
Optimize as per TODO (thanks Damien!)
commit 5bf0153eca
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 08:42:06 2014 +1000
Test a default (= UTF-8) encode and decode
commit c962057ac3
Merge: e2c9782195de32
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 05:23:03 2014 +1000
Merge branch 'master' into unicode, resolving conflict on py/obj.h
commit e2c9782a65
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 05:05:57 2014 +1000
More whitespace fixups
commit 086a2a0f57
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 05:04:20 2014 +1000
Properly implement string slicing
commit 0d339a143e
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 02:24:11 2014 +1000
Support slicing in str_index_to_ptr, and fix a bounds error
commit 24371c7267
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 02:10:22 2014 +1000
Break out index-to-pointer calculation into a function
commit 616c24ac01
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 02:03:11 2014 +1000
Add tests of string slicing, which currently fail
commit a24d19f676
Author: Chris Angelico <rosuav@gmail.com>
Date: Tue Jun 10 01:56:53 2014 +1000
Change string indexing to not precalculate the charlen, and add test for neg indexing
commit 0bcc7ab89e
Author: Chris Angelico <rosuav@gmail.com>
Date: Sun Jun 8 22:09:17 2014 +1000
Clean up constant qstr declarations now that charlen isn't needed
commit 5473e1a1db
Author: Chris Angelico <rosuav@gmail.com>
Date: Sun Jun 8 07:18:42 2014 +1000
Remove the charlen field from strings, calculating it when required
commit 5c1658ec71
Author: Chris Angelico <rosuav@gmail.com>
Date: Sun Jun 8 07:11:27 2014 +1000
Get rid of mp_obj_str_get_data_len() which was used in only one place
commit a019ba968b
Author: Chris Angelico <rosuav@gmail.com>
Date: Sun Jun 8 06:58:26 2014 +1000
Add a unichar_charlen() function to calculate length-in-characters from length-in-bytes
commit 44b0d5cff8
Author: Chris Angelico <rosuav@gmail.com>
Date: Sun Jun 8 06:32:44 2014 +1000
Use utf8_get/next_char in building up a string's repr
commit 30d1bad33f
Author: Chris Angelico <rosuav@gmail.com>
Date: Sun Jun 8 06:10:45 2014 +1000
Make utf8_get_char() and utf8_next_char() actually do what their names say
commit bc990dad9a
Author: Chris Angelico <rosuav@gmail.com>
Date: Sun Jun 8 02:10:59 2014 +1000
Revert "Add PEP 393-flags to strings and stub usage."
This reverts commit c239f50952.
commit f9bebb28ad
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 15:41:48 2014 +1000
Whitespace fixes
commit 279de0c8eb
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 15:28:35 2014 +1000
Formatting/layout improvements - introduce macros for UTF-8 byte detection, add braces. No functional changes.
commit f1911f53d5
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 11:56:02 2014 +1000
Make chr() Unicode-aware
commit f51ad737b4
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 11:44:07 2014 +1000
Make a string's repr Unicode-aware
commit 01bd686846
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 11:33:43 2014 +1000
Expand the Unicode tests
commit 7bc91904f8
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 11:27:30 2014 +1000
Record byte lengths for byte strings
commit bb13212071
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 11:25:06 2014 +1000
Make ord() Unicode-aware
commit 03f0cbe905
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 10:24:35 2014 +1000
Retain characters as UTF-8 encoded Unicode
commit e924659b85
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 08:37:27 2014 +1000
Add support for \u and \U escapes, but not \N (with explanatory comment)
commit 231031ac5f
Author: Chris Angelico <rosuav@gmail.com>
Date: Sat Jun 7 05:09:35 2014 +1000
Add character length to qstr
commit 6df1b946fb
Author: Chris Angelico <rosuav@gmail.com>
Date: Fri Jun 6 13:48:36 2014 +1000
Add test of UTF-8 encoded source file resulting in properly formed string
commit 16429b81a8
Author: Chris Angelico <rosuav@gmail.com>
Date: Fri Jun 6 13:44:15 2014 +1000
Make len(s) return character length (even though creation's still buggy)
commit cd2cf6663c
Author: Chris Angelico <rosuav@gmail.com>
Date: Fri Jun 6 13:15:36 2014 +1000
HACK - When indexing a qstr, count its charlen. Stupidly inefficient but POC.
All tests pass now, though string creation is still buggy.
commit 47c234584d
Author: Chris Angelico <rosuav@gmail.com>
Date: Fri Jun 6 13:15:32 2014 +1000
objstr: Record character length separately from byte length
CAUTION: Buggy, may crash stuff - qstr needs equivalent functionality too
commit b0f41c72af
Author: Chris Angelico <rosuav@gmail.com>
Date: Fri Jun 6 05:37:36 2014 +1000
Beginnings of UTF-8 support - construct strings from that many UTF-8-encoded chars, and subscript bytes the same way
commit 89452be641
Author: Chris Angelico <rosuav@gmail.com>
Date: Fri Jun 6 05:28:47 2014 +1000
Update comments - now aiming for UTF-8 rather than PEP 393 strings
commit c239f50952
Author: Chris Angelico <rosuav@gmail.com>
Date: Wed Jun 4 05:28:12 2014 +1000
Add PEP 393-flags to strings and stub usage.
The test suite all passes, but nothing has actually been changed.
Such mechanism is important to get stable Python functioning, because Python
function calling is handled with C stack. The idea is to sprinkle
STACK_CHECK() calls in places where there can be C recursion.
TODO: Add more STACK_CHECK()'s.
Expected to be set on command line, with the idea being that for different
targets, there're different smartass ABIs which strive to put unneeded
sections into executables, etc., so let people have flexible way to
strip that.
The option name is similar to previously introduced CLFAGS_EXTRA &
LDFLAGS_EXTRA.
char can be signedness, and using signedness types is dangerous - it can
lead to negative offsets when doing table lookups. We apparently should just
ban char usage.
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).
Functionality we provide in builtin io module is fairly minimal. Some
code, including CPython stdlib, depends on more functionality. So, there's
a choice to either implement it in C, or move it _io, and let implement other
functionality in Python. 2nd choice is pursued. This setup matches CPython
too (_io is builtin, io is Python-level).
Benefits: won't crash baremetal targets, will provide Python source location
when not implemented feature used (it will no longer provide C source
location, but just grep for error message).
there are special tweaks and paths to be considered. Just provide some
defaults, in case the values are undefined.
- py-version.sh does not need any bash specific features.
- Use libdl only on Linux for now. FreeBSD provides dl*() calls from libc.
Some small fixed:
- Combine 'x' and 'X' cases in str format code.
- Remove trailing spaces from some lines.
- Make exception messages consistently begin with lower case (then
needed to change those in objarray and objtuple so the same
constant string data could be used).
- Fix bug with exception message having %c instead of %%c.
Add keyword args to dict.update(), and ability to take a dictionary as
argument.
dict() class constructor can now use dict.update() directly.
This patch loses fast path for dict(other_dict), but is that really
needed? Any anyway, this idiom will now re-hash the dictionary, so is
arguably more memory efficient.
Addresses issue #647.
This may seem a bit of a risky change, in that it may introduce crazy
bugs with respect to volatile variables in the VM loop. But, I think it
should be fine: code_state points to some external memory, so the
compiler should always read/write to that memory when accessing the
ip/sp variables (ie not put them in registers).
Anyway, it passes all tests and improves on all efficiency fronts: about
2-4% faster (64-bit unix), 16 bytes less stack space per call (64-bit
unix) and slightly less executable size (unix and stmhal).
The reason it's more efficient is save_ip and save_sp were volatile
variables, so were anyway stored on the stack (in memory, not regs).
Thus converting them to code_state->{ip, sp} doesn't cost an extra
memory dereference (except maybe to get code_state, but that can be put
in a register and then made more efficient for other uses of it).
Conflicts:
py/vm.c
Fixed stack underflow check. Use UINT_FMT/INT_FMT where necessary.
Specify maximum VM-stack byte size by multiple of machine word size, so
that on 64 bit machines it has same functionality as 32 bit.
This improves stack usage in callers to mp_execute_bytecode2, and is step
forward towards unifying execution interface for function and generators
(which is important because generators don't even support full forms
of arguments passing (keywords, etc.)).
Needed to pop the iterator object when breaking out of a for loop. Need
also to be careful to unwind exception handler before popping iterator.
Addresses issue #635.
This helps the compiler do its optimisation, makes it clear which
variables are local per opcode and which global, and makes it consistent
when extra variables are needed in an opcode (in addition to old obj1,
obj2 pair, for example).
Could also make unum local, but that's for another time.
This completes non-automatic interning of strings in the parser, so that
doc strings don't take up RAM. It complicates the parser and compiler,
and bloats stmhal by about 300 bytes. It's complicated because now
there are 2 kinds of parse-nodes that can be strings: interned leaves
and non-interned structs.
io.FileIO is binary I/O, ans actually optional. Default file type is
io.TextIOWrapper, which provides str results. CPython3 explicitly describes
io.TextIOWrapper as buffered I/O, but we don't have buffering support yet
anyway.
Now schedule is: for native types, we call ->make_new() C-level method, which
should perform actions of __new__ and __init__ (note that this is not
compliant, but is efficient), but for user types, __new__ and __init__ are
called as expected.
Also, make sure we convert scalar attribute value to a bound-pair tight in
mp_obj_class_lookup() method, which avoids converting it again and again in
its callers.
__debug__ now resolves to True or False. Its value needs to be set by
mp_set_debug().
TODO: call mp_set_debug in unix/ port.
TODO: optimise away "if False:" statements in compiler.
Updated functions now do proper checking that n_kw==0, and are simpler
because they don't have to explicitly raise an exception. Down side is
that the error messages no longer include the function name, but that's
acceptable.
Saves order 300 text bytes on x64 and ARM.
This is not fully correct re: error handling, because we should check that
that types are used consistently (only str's or only bytes), but magically
makes lot of functions support bytes.
Two things are handled here: allow to compare native subtypes of tuple,
e.g. namedtuple (TODO: should compare type too, currently compared
duck-typedly by content). Secondly, allow user sunclasses of tuples
(and its subtypes) be compared either. "Magic" I did previously in
objtype.c covers only one argument (lhs is many), so we're in trouble
when lhs is native type - there's no other option besides handling
rhs in special manner. Fortunately, this patch outlines approach with
fast path for native types.
This was hit when trying to make urlparse.py from stdlib run. Took
quite some time to debug.
TODO: Reconsile bound method creation process better, maybe callable is
to generic type to bind at all?
Parser shouldn't raise exceptions, so needs to check when memory
allocation fails. This patch does that for the initial set up of the
parser state.
Also, we now put the parser object on the stack. It's small enough to
go there instead of on the heap.
This partially addresses issue #558.
"object" type in MicroPython currently doesn't implement any methods, and
hopefully, we'll try to stay like that for as long as possible. Even if we
have to add something eventually, look up from there might be handled in
adhoc manner, as last resort (that's not compliant with Python3 MRO, but
we're already non-compliant). Hence: 1) no need to spend type trying to
lookup anything in object; 2) no need to allocate subobject when explicitly
inheriting from object; 3) and having multiple bases inheriting from object
is not a case of incompatible multiple inheritance.
This patch simplifies the glue between native emitter and runtime,
and handles viper code like inline assember: return values are
converted to Python objects.
Fixes issue #531.
Paul Sokolovsky
Dave Hylands
Damien George
stijn
Chris Angelico
mux
Emmanuel Blot
Marcus von Appen
Kim Bauters
Sven Wegener
Antonin ENFRUN