Commit Graph

2044 Commits

Author SHA1 Message Date
Dave Hylands 9f76dcd682 py: Prevent many extra vstr allocations.
I checked the entire codebase, and every place that vstr_init_len
was called, there was a call to mp_obj_new_str_from_vstr after it.

mp_obj_new_str_from_vstr always tries to reallocate a new buffer
1 byte larger than the original to store the terminating null
character.

In many cases, if we allocated the initial buffer to be 1 byte
longer, we can prevent this extra allocation, and just reuse
the originally allocated buffer.

Asking to read 256 bytes and only getting 100 will still cause
the extra allocation, but if you ask to read 256 and get 256
then the extra allocation will be optimized away.

Yes - the reallocation is optimized in the heap to try and reuse
the buffer if it can, but it takes quite a few cycles to figure
this out.

Note by Damien: vstr_init_len should now be considered as a
string-init convenience function and used only when creating
null-terminated objects.
2015-07-06 17:29:27 +01:00
Damien George ef7dd8db2d py/repl: Fix case where shorter names are shadowed by longer names.
Previous to this patch, if "abcd" and "ab" were possible completions
to tab-completing "a", then tab would expand to "abcd" straight away
if this identifier appeared first in the dict.
2015-07-06 14:00:09 +01:00
Paul Sokolovsky 7e66b859b2 modstruct: Raise NotImplementedError for unsupported repeat specification. 2015-07-05 22:44:14 +03:00
Galen Hazelwood 616986a5f3 extmod: Add a2b_base64 and b2a_base64 functions to ubinascii. 2015-07-04 12:26:52 +03:00
Damien George 035deae1c6 py/objarray.c: Allow to build with debugging and bytearray but no array. 2015-07-02 16:26:57 +01:00
Daniel Campora 077812b2ab py: Add TimeoutError exception subclassed from OSError.
The TimeoutError is useful for some modules, specially the the
socket module. TimeoutError can then be alised to socket.timeout
and then Python code can differentiate between socket.error and
socket.timeout.
2015-07-02 11:53:08 +02:00
Paul Sokolovsky 9780e55274 builtinimport: Fix running package submodule with -m.
When "micropython -m pkg.mod" command was used, relative imports in pkg.mod
didn't work, because pkg.mod.__name__ was set to __main__, and the fact that
it's a package submodule was missed. This is an original workaround to this
issue. TODO: investigate and compare how CPython deals with this issue.
2015-06-29 00:26:45 +03:00
Paul Sokolovsky c4045f57e3 builtinimport: Catch case when relative import happens without active package.
CPython raises SystemError in this case, but we don't have that enabled, so
raise ImportError.
2015-06-27 00:40:21 +03:00
Paul Sokolovsky 6557a096d6 runtime: Improve mp_import_name() debug logging. 2015-06-27 00:40:21 +03:00
Paul Sokolovsky f44cc517a2 objstr: Add note that replace() is nicely optimized.
Doesn't allocate memory and returns original string if no replacements are
to be made.
2015-06-26 17:35:12 +03:00
Damien George 59fba2d6ea py: Remove mp_load_const_bytes and instead load precreated bytes object.
Previous to this patch each time a bytes object was referenced a new
instance (with the same data) was created.  With this patch a single
bytes object is created in the compiler and is loaded directly at execute
time as a true constant (similar to loading bignum and float objects).
This saves on allocating RAM and means that bytes objects can now be
used when the memory manager is locked (eg in interrupts).

The MP_BC_LOAD_CONST_BYTES bytecode was removed as part of this.

Generated bytecode is slightly larger due to storing a pointer to the
bytes object instead of the qstr identifier.

Code size is reduced by about 60 bytes on Thumb2 architectures.
2015-06-25 14:42:13 +00:00
Damien George ed570e4b2a py: Remove mp_load_const_str and replace uses with inlined version. 2015-06-25 13:58:41 +00:00
Damien George 2a1090a637 py: Clarify comment in parsenum.c about ValueError vs SyntaxError. 2015-06-23 16:08:51 +00:00
Daniel Campora 228c68a9cd py: Change exception type to ValueError when error reporting is terse.
Addresses issue #1347
2015-06-23 15:30:49 +02:00
Damien George 7f19a39a3b py: Cast argument for printf to int, to be compatible with more ports.
This allows stmhal to be compiled with MICROPY_DEBUG_PRINTERS.
2015-06-22 17:40:12 +01:00
Damien George 06593fb0f2 py: Use a wrapper to explicitly check self argument of builtin methods.
Previous to this patch a call such as list.append(1, 2) would lead to a
seg fault.  This is because list.append is a builtin method and the first
argument to such methods is always assumed to have the correct type.

Now, when a builtin method is extracted like this it is wrapped in a
checker object which checks the the type of the first argument before
calling the builtin function.

This feature is contrelled by MICROPY_BUILTIN_METHOD_CHECK_SELF_ARG and
is enabled by default.

See issue #1216.
2015-06-20 16:39:39 +01:00
Damien George c8870b7c69 py: Make showbc decode UNPACK_EX, and use correct range for unop/binop. 2015-06-18 15:12:17 +00:00
Damien George e9ce00d874 py: Implement divmod for mpz bignum. 2015-06-13 23:38:28 +01:00
Damien George c5029bcbf3 py: Add MP_BINARY_OP_DIVMOD to simplify and consolidate divmod builtin. 2015-06-13 23:36:30 +01:00
Damien George 6f49520042 py: Implement second arg for math.log (optional value for base). 2015-06-13 22:35:25 +01:00
Paul Sokolovsky a19ba5fea0 py: Rebuild port if mpconfigport.mk changed (if any).
mpconfigport.mk contains configuration options which affect the way
MicroPython is linked. In this regard, it's "stronger" configuration
dependency than even mpconfigport.h, so if we rebuild everything on
mpconfigport.h change, we certianly should of that on mpconfigport.mk
change too.
2015-06-11 11:08:39 +03:00
Damien George 7ed58cb663 py: Support unicode (utf-8 encoded) identifiers in Python source.
Enabled simply by making the identifier lexing code 8-bit clean.
2015-06-09 10:58:07 +00:00
Damien George 6e56bb623c py: Fallback to stack alloca for Python-stack if heap alloc fails.
If heap allocation for the Python-stack of a function fails then we may
as well allocate the Python-stack on the C stack.  This will allow to
run more code without using the heap.
2015-06-08 22:07:27 +01:00
Paul Sokolovsky 07408cbd1f unix: Make micropython -m <module> work for frozen modules.
This requires some special handling, which was previosuly applied only to
the main code path.
2015-06-06 00:10:58 +03:00
Damien George d7192fe68c py: Expose KeyboardInterrupt in builtins module. 2015-06-05 10:46:22 +01:00
Damien George 031278f661 unix: Allow to cat a script into stdin from the command line.
See issue #1306.
2015-06-04 23:42:45 +01:00
Damien George 567b349c2b py: Implement native multiply operation in viper emitter. 2015-06-04 14:00:29 +00:00
Damien George 4d9cad180d py: Implement implicit cast to obj for viper load/store index/value.
This allows to do "ar[i]" and "ar[i] = val" in viper when ar is a Python
object and i and/or val are native viper types (eg ints).

Patch also includes tests for this feature.
2015-06-04 11:52:16 +01:00
Damien George 953c23b1bc py: Add stack check to mp_iternext, since it can be called recursively.
Eg, builtin map can map over a map, etc, and call iternext deeply.

Addresses issue #1294.
2015-06-03 22:19:41 +01:00
Paul Sokolovsky 18fda7b42f frozenmod: Include header with function prototypes. 2015-05-31 23:02:04 +03:00
Damien George db52fd8e4d py: Wrap qstr defs in quotes to protect from C preprocessor.
This patch converts Q(abc) to "Q(abc)" to protect the abc from the
C preprocessor, then converts back after the preprocessor is finished.
So now we can safely put includes in mpconfig(port).h, and also
preprocess qstrdefsport.h (latter is now done also in this patch).

Addresses issue #1252.
2015-05-30 23:14:34 +01:00
Damien George 0ec8cf8e80 py/parsenum.c: Rename "raise" func to "raise_exc" to avoid name clash.
"raise" is a common word that was found to exist in a vendor's stdlib.
2015-05-30 23:13:16 +01:00
Damien George 4e4772bb5b py: Add further autodetection of endianess in mpconfig.h.
This patch was needed for gcc 4.4.
2015-05-30 23:12:30 +01:00
Damien George 26b512ea1b py: Get makeqstrdata.py and makeversionhdr.py running under Python 2.6.
These scripts should run under as wide a range of Python versions as
possible.
2015-05-30 23:11:16 +01:00
Damien George 79474c6b16 py: Remove unnecessary extra handling of padding of nan/inf.
C's printf will pad nan/inf differently to CPython.  Our implementation
originally conformed to C, now it conforms to CPython's way.

Tests for this are also added in this patch.
2015-05-28 14:22:12 +00:00
Damien George 2cae0f6290 py: Reduce size of mp_printf by eliminating unnecessary code.
Saves around 120 bytes on Thumb2 archs.
2015-05-28 13:54:56 +00:00
Damien George 1a97f6721f py: Make makeversionhdr.py extract version from docs/conf.py if no git.
Addresses issue #1285.
2015-05-25 13:26:47 +01:00
Damien George 3c4b5d4281 stmhal: Implement sys.std{in,out,err}.buffer, for raw byte mode.
It's configurable and only enabled for stmhal port.
2015-05-24 14:31:33 +01:00
Daniel Campora 6f1cffeb28 py: Remove hexdigest QSTR since the method has been removed as well. 2015-05-21 18:52:39 +02:00
Dave Hylands afaa66b657 py: Minor improvement to unichar_isxdigit
This drops the size of unicode_isxdigit from 0x1e + 0x02 filler to
0x14 bytes (so net code reduction of 12 bytes) and will make
unicode_is_xdigit perform slightly faster.
2015-05-20 09:31:22 +01:00
Dave Hylands 3ad94d6072 extmod: Add ubinascii.unhexlify
This also pulls out hex_digit from py/lexer.c and makes unichar_hex_digit
2015-05-20 09:29:22 +01:00
stijn 861670ba2a py: Implement mp_format_float for doubles and use where appropriate
This allows using (almost) the same code for printing floats everywhere,
removes the dependency on sprintf and uses just snprintf and
applies an msvc-specific fix for snprintf in a single place so
nan/inf are now printed correctly.
2015-05-17 21:47:11 +01:00
Kaspar Schleiser f5dd6f7f37 py/binary: Make return type of mp_binary_get_size size_t instead of int.
Fixes sign-compare warning.
2015-05-17 18:12:19 +01:00
Kaspar Schleiser b5cef5c7ea py/objobject: Don't make locals_dict if there's nothing to go in it. 2015-05-17 17:48:47 +01:00
Kaspar Schleiser cf5112b26f py: Change _mp_obj_fun_builtin_t.fun to function pointer.
ISO C forbids conversion between function pointers and void*, gcc
-pedantic triggers a warning.
2015-05-17 17:42:04 +01:00
Damien George 44e7cbf019 py: Clean up declarations of str type/funcs that are also in unicode.
Background: trying to make an amalgamation of all the code gave some
errors with redefined types and inconsistent use of static.
2015-05-17 16:44:24 +01:00
stijn 709955b601 py: Fix printing of complex number when imaginary part is nan 2015-05-13 23:10:15 +01:00
Damien George c50772d19f py: Add mp_obj_get_int_truncated and use it where appropriate.
mp_obj_get_int_truncated will raise a TypeError if the argument is not
an integral type.  Use mp_obj_int_get_truncated only when you know the
argument is a small or big int.
2015-05-12 23:05:53 +01:00
Damien George c2a4e4effc py: Convert hash API to use MP_UNARY_OP_HASH instead of ad-hoc function.
Hashing is now done using mp_unary_op function with MP_UNARY_OP_HASH as
the operator argument.  Hashing for int, str and bytes still go via
fast-path in mp_unary_op since they are the most common objects which
need to be hashed.

This lead to quite a bit of code cleanup, and should be more efficient
if anything.  It saves 176 bytes code space on Thumb2, and 360 bytes on
x86.

The only loss is that the error message "unhashable type" is now the
more generic "unsupported type for __hash__".
2015-05-12 22:46:02 +01:00
Paul Sokolovsky 6738c1dded vm: Properly handle StopIteration raised in user instance iterator.
I.e. in bytecode Python functions.
2015-05-11 23:57:42 +01:00