Commit Graph

135 Commits

Author SHA1 Message Date
Paul Sokolovsky a5afc9009f builtinimport: Implement relative imports. 2014-04-12 18:25:17 +03:00
Paul Sokolovsky 2ff3d9d0b2 builtinimport: Set __path__ attribute ASAP as it's clear we have a package.
This helps with handling "recursive" imports in sane manner, for example
when foo/__init__.py has something like "from foo import submod".
2014-04-12 02:55:18 +03:00
Paul Sokolovsky 13d52df4c5 builtinimport: Set __path__ attribute on packages.
Per https://docs.python.org/3.3/reference/import.html , this is the way to
tell module from package: "Specifically, any module that contains a __path__
attribute is considered a package." And it for sure will be needed to
implement relative imports.
2014-04-12 00:39:55 +03:00
Paul Sokolovsky e081329098 builtinimport: Elaborate debug output support. 2014-04-12 00:39:55 +03:00
Andrew Scheller f78cfaf8b5 Remove exception name from inside the exception message
This prevents micropython printing exception messages like
ImportError: ImportError: No module named 'foo'
2014-04-09 19:56:38 +01:00
Damien George 65cad12d38 py: Add option to compiler to specify default code emitter.
Also add command line option to unix port to select emitter.
2014-04-06 11:48:15 +01:00
Damien George 7efc5b3f34 py: Make globals and locals proper dictionary objects.
Finishes addressing issue #424.

In the end this was a very neat refactor that now makes things a lot
more consistent across the py code base.  It allowed some
simplifications in certain places, now that everything is a dict object.

Also converted builtins tables to dictionaries.  This will be useful
when we need to turn builtins into a proper module.
2014-04-05 22:36:42 +01:00
Damien George 8b0535e23f py: Change module globals from mp_map_t* to mp_obj_dict_t*.
Towards addressing issue #424.

Had a small increase to ROM usage (order 60 bytes).
2014-04-05 21:53:54 +01:00
Damien George ea13f407a3 py: Change nlr_jump to nlr_raise, to aid in debugging.
This does not affect code size or performance when debugging turned off.

To address issue #420.
2014-04-05 18:32:08 +01:00
Damien George df6567e634 Merge map.h into obj.h.
Pretty much everyone needs to include map.h, since it's such an integral
part of the Micro Python object implementation.  Thus, the definitions
are now in obj.h instead.  map.h is removed.
2014-03-30 13:54:02 +01:00
Damien George d17926db71 Rename rt_* to mp_*.
Mostly just a global search and replace.  Except rt_is_true which
becomes mp_obj_is_true.

Still would like to tidy up some of the names, but this will do for now.
2014-03-30 13:35:08 +01:00
Damien George caac542b23 Proper support for registering builtin modules in ROM.
Comes with some refactoring of code and renaming of files.  All modules
are now named mod*.[ch].
2014-03-25 14:18:18 +00:00
Damien George 24ff063e80 py: Remove obsolete declarations; make mp_obj_get_array consistent. 2014-03-24 10:47:13 +00:00
xbe efe3422394 py: Clean up includes.
Remove unnecessary includes. Add includes that improve portability.
2014-03-17 02:43:40 -07:00
Damien George 280e7208d8 Add vstr_ins and vstr_cut_out; improve stmhal readline. 2014-03-15 14:33:09 +00:00
Paul Sokolovsky feacaa12ac __import__: Catch relative import attempts and throw NotImplementedError. 2014-02-21 01:15:20 +02:00
Paul Sokolovsky fb7f94392d import: Implement "from pkg.mod import sym" syntax properly.
http://docs.python.org/3.3/library/functions.html#__import__ :
"When the name variable is of the form package.module, normally, the
top-level package (the name up till the first dot) is returned, not
the module named by name. However, when a non-empty fromlist argument
is given, the module named by name is returned."
2014-02-20 00:37:12 +02:00
Paul Sokolovsky 91ba7a54c5 builtinimport: Get the basic (and only basic) package imports work. 2014-02-16 02:55:46 +02:00
Paul Sokolovsky d3783570a4 builtinimport.c: Recognize "namespace package" and error out as unsupported.
See http://www.python.org/dev/peps/pep-0420/#specification for spec. See
https://github.com/micropython/micropython/issues/298 for the discussion
of the implemented behavior.
2014-02-16 02:55:46 +02:00
Damien George c5966128c7 Implement proper exception type hierarchy.
Each built-in exception is now a type, with base type BaseException.
C exceptions are created by passing a pointer to the exception type to
make an instance of.  When raising an exception from the VM, an
instance is created automatically if an exception type is raised (as
opposed to an exception instance).

Exception matching (RT_BINARY_OP_EXCEPTION_MATCH) is now proper.

Handling of parse error changed to match new exceptions.

mp_const_type renamed to mp_type_type for consistency.
2014-02-15 16:10:44 +00:00
Damien George 698ec21e46 Make mp_obj_str_get_data return char* instead of byte*.
Can't decide which is better for string type, char or byte pointer.
Changing to char removes a few casts.  Really need to do proper unicode.
2014-02-08 18:17:23 +00:00
Damien George 354d15a964 Implement fixed buffer vstrs; use them for import path. 2014-02-06 21:11:19 +00:00
Damien George e09ffa1400 Search paths properly on import and execute __init__.py if it exists. 2014-02-05 23:57:48 +00:00
Paul Sokolovsky e11b17c25f Implement support for sys.path when loading modules.
sys.path is not initialized by rt_init(), that's left for platform-specific
startup code. (For example, bare metal port may have some hardcoded defaults,
and let user change sys.path directly; while port for OS with environment
feature can take path from environment). If it's not explicitly initialized,
modules will be imported only from a current directory.
2014-02-05 01:40:41 +02:00
Paul Sokolovsky 1d938c9503 Expose __import__() function. 2014-02-04 00:47:06 +02:00
Damien George b829b5caec Implement mp_parse_node_free; print properly repr(string). 2014-01-25 13:51:19 +00:00
Damien George 5fa93b6755 Second stage of qstr revamp: uPy str object can be qstr or not. 2014-01-22 14:35:10 +00:00
Damien George 55baff4c9b Revamp qstrs: they now include length and hash.
Can now have null bytes in strings.  Can define ROM qstrs per port using
qstrdefsport.h
2014-01-21 21:40:13 +00:00
Paul Sokolovsky d720ab5236 Implement modules as singletons Python semantics.
In Python, importing module several times returns same underlying module
object. This also fixes import statement handling for builtin modules.

There're still issues:
1. CPython exposes set of loaded modules as sys.modules, we may want to
do that either.
2. Builtin modules are implicitly imported, which is not really correct.
We should separate registering a (builtin) module and importing a module.
CPython keeps builtin module names in sys.builtin_module_names .
2014-01-20 00:38:39 +02:00
Damien George 08335004cf Add source file name and line number to error messages.
Byte code has a map from byte-code offset to source-code line number,
used to give better error messages.
2014-01-18 23:24:36 +00:00
Damien George 9528cd66d7 Convert parse errors to exceptions.
Parser no longer prints an error, but instead returns an exception ID
and message.
2014-01-15 21:23:31 +00:00
Damien George 2300537c79 Cleanup built-ins, and fix some compiler warnings/errors. 2014-01-13 19:39:01 +00:00
Damien George eb7bfcb286 Split qstr into pools, and put initial pool in ROM.
Qstr's are now split into a linked-list of qstr pools.  This has 2
benefits: the first pool can be in ROM (huge benefit, since we no longer
use RAM for the core qstrs), and subsequent pools use m_new for the next
pool instead of m_renew (thus avoiding a huge single table for all the
qstrs).

Still would be better to use a hash table, but this scheme takes us part
of the way (eventually convert the pools to hash tables).

Also fixed bug with import.

Also improved the way the module code is referenced (not magic number 1
anymore).
2014-01-04 15:57:35 +00:00
Damien George 1fb031744f Change mp_compile so that it returns a function object for the module. 2014-01-03 14:22:03 +00:00
Damien George 66028ab6dc Basic implementation of import.
import works for simple cases.  Still work to do on finding the right
script, and setting globals/locals correctly when running an imported
function.
2014-01-03 14:03:48 +00:00