Commit Graph

14 Commits

Author SHA1 Message Date
Jeff Epler 0d957fe15c
Fix several places where an exception could be chained wrongly
If an exception's chain or context can refer to a pointer from a different
VM, a crash would typically result.

This couldn't turn up on UNIX testing because the VM is never torn
down and rebuilt like it is on hardware.

Because in the 'static' case the GeneratorObject is now fully initialized
whenever it's raised, the initialization can be dropped, which reduces
the flash size slightly.
Closes: #7565
2023-02-10 09:06:47 -06:00
Jeff Epler b6f86e1e73
Recursively print chained exceptions 2022-11-13 19:53:21 -06:00
Jeff Epler f3169246ba
Implement chained exceptions
This adds the __cause__, __context__ and __suppress_context__
members to exception objects and makes e.g., `raise exc from cause`
set them in the same way as standard Python.
2022-11-13 19:52:50 -06:00
microDev 70b3e73349
traceback: fix for crash on non-native exceptions
Co-authored-by: Tim Hawes <me@timhawes.com>
2021-12-15 12:29:21 +05:30
microDev 193a8d2e67
add traceback object 2021-08-04 12:10:57 +05:30
microDev a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
Diego Elio Pettenò 34b4993d63 Add license to some obvious files. 2020-07-06 19:16:25 +01:00
Damien George 5edce4539b py/objexcept: Make MP_DEFINE_EXCEPTION public so ports can define excs. 2018-03-17 00:31:40 +11:00
Alexander Steffen 55f33240f3 all: Use the name MicroPython consistently in comments
There were several different spellings of MicroPython present in comments,
when there should be only one.
2017-07-31 18:35:40 +10:00
Alexander Steffen 299bc62586 all: Unify header guard usage.
The code conventions suggest using header guards, but do not define how
those should look like and instead point to existing files. However, not
all existing files follow the same scheme, sometimes omitting header guards
altogether, sometimes using non-standard names, making it easy to
accidentally pick a "wrong" example.

This commit ensures that all header files of the MicroPython project (that
were not simply copied from somewhere else) follow the same pattern, that
was already present in the majority of files, especially in the py folder.

The rules are as follows.

Naming convention:
* start with the words MICROPY_INCLUDED
* contain the full path to the file
* replace special characters with _

In addition, there are no empty lines before #ifndef, between #ifndef and
one empty line before #endif. #endif is followed by a comment containing
the name of the guard macro.

py/grammar.h cannot use header guards by design, since it has to be
included multiple times in a single C file. Several other files also do not
need header guards as they are only used internally and guaranteed to be
included only once:
* MICROPY_MPHALPORT_H
* mpconfigboard.h
* mpconfigport.h
* mpthreadport.h
* pin_defs_*.h
* qstrdefs*.h
2017-07-18 11:57:39 +10:00
Damien George fa5a591757 py/objexcept: Convert mp_uint_t to size_t where appropriate. 2017-02-16 16:51:17 +11:00
Damien George 3d2daa2d03 py: Change exception traceback data to use size_t instead of mp_uint_t.
The traceback array stores qstrs and line numbers.  qstrs are typed as
size_t, and line numbers should safely fit in size_t as well.
2016-01-02 22:04:12 +00:00
Damien George 4852e09c79 py: Fix adding of traceback so that it appends to existing info.
This makes exception traceback info self contained (ie doesn't rely on
list object, which was a bit of a hack), reduces code size, and reduces
RAM footprint of exception by eliminating the list object.

Addresses part of issue #1126.
2015-02-27 00:36:39 +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