suspect-devices/circuitpython/py/vm.c, branch v1.4.3CircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.4.32015-05-12T21:46:02+00:00py: Convert hash API to use MP_UNARY_OP_HASH instead of ad-hoc function.2015-05-12T21:46:02+00:00Damien Georgedamien.p.george@gmail.com2015-05-11T12:25:19+00:00urn:sha1:c2a4e4effc81d8ab21bb014e34355643e5ca0da2
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__".
vm: Properly handle StopIteration raised in user instance iterator.2015-05-11T22:57:42+00:00Paul Sokolovskypfalcon@users.sourceforge.net2015-05-10T23:59:25+00:00urn:sha1:6738c1dded8e436686f85008ec0a4fc47406ab7a
I.e. in bytecode Python functions.
vm: Null pointer test when checking for StopIteration optimizations.2015-05-10T14:20:46+00:00Paul Sokolovskypfalcon@users.sourceforge.net2015-05-10T14:18:10+00:00urn:sha1:a7c02c4538bb2b986efb1999e00da4d76345767d
When generator raises exception, it is automatically terminated (by setting
its code_state.ip to 0), which interferes with this check.
Triggered in particular by CPython's test_pep380.py.
py: Remove LOAD_CONST_ELLIPSIS bytecode, use LOAD_CONST_OBJ instead.2015-05-05T21:15:42+00:00Damien Georgedamien.p.george@gmail.com2015-05-05T21:15:42+00:00urn:sha1:8872abcbc4107c8d3eaf148a03813e607aa30bfb
Ellipsis constant is rarely used so no point having an extra bytecode
for it.
vm: On exiting except block, clear sys.exc_info() value.2015-04-25T22:40:37+00:00Paul Sokolovskypfalcon@users.sourceforge.net2015-04-25T22:20:49+00:00urn:sha1:ae2c81ff388d9b06bc11ac1e14bd5d71b4f4637c
This doesn't handle case fo enclosed except blocks, but once again,
sys.exc_info() support is a workaround for software which uses it
instead of properly catching exceptions via variable in except clause.
modsys: Add basic sys.exc_info() implementation.2015-04-25T00:49:23+00:00Paul Sokolovskypfalcon@users.sourceforge.net2015-04-25T00:17:41+00:00urn:sha1:8b85d14b92a65e92862861038c0fe96e6c616c3e
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.
py: Modify bytecode "with" behaviour so it doesn't use any heap.2015-04-24T00:52:28+00:00Damien Georgedamien.p.george@gmail.com2015-04-24T00:52:28+00:00urn:sha1:8c1d23a0e20da2903f363448e8042e5d08caabe7
Before this patch a "with" block needed to create a bound method object
on the heap for the __exit__ call. Now it doesn't because we use
load_method instead of load_attr, and save the method+self on the stack.
py: Combine load_attr and store_attr type methods into one (attr).2015-04-11T15:54:37+00:00Damien Georgedamien.p.george@gmail.com2015-04-01T14:10:50+00:00urn:sha1:b1bbe966c408901ae64ea8c8b468694c47d05b1a
This simplifies the API for objects and reduces code size (by around 400
bytes on Thumb2, and around 2k on x86). Performance impact was measured
with Pystone score, but change was barely noticeable.
py: Adjust some spaces in code style/format, purely for consistency.2015-04-09T15:29:54+00:00Damien Georgedamien.p.george@gmail.com2015-04-09T15:29:54+00:00urn:sha1:4dea922610c8ea6af285cd49b0a531d4941d820fpy: Fix msvc warning '*/ found outside of comment'2015-04-09T10:40:38+00:00stijnstinos@zoho.com2015-04-09T09:34:08+00:00urn:sha1:36cc84a2a97aea289ccab851b55de590b91f86f5
Also prevents some of the weaker syntax parsers out there treating the whole
'*/*const*/' part as a comment