Commit Graph

57 Commits

Author SHA1 Message Date
Damien George ea8d06c39d py: Add MP_OBJ_STOP_ITERATION and make good use of it.
Also make consistent use of MP_OBJ_NOT_SUPPORTED and MP_OBJ_NULL.
This helps a lot in debugging and understanding of function API.
2014-04-17 23:19:36 +01:00
Damien George de7c425139 py: Simplify objfun/objgenerator connection, no need to call bc_get. 2014-04-17 19:16:11 +01:00
Paul Sokolovsky b7e90ea078 objgenerator: Generator must execute in its defining lexical context.
I.e. with its own globals. So, just as for functions, we need to switch
globals when resuming a generator.
2014-04-17 20:27:00 +03:00
Damien George d99944acdd py: Clear state to MP_OBJ_NULL before executing byte code. 2014-04-09 19:53:31 +01:00
Damien George 13d6739cc7 py: Generators can have their locals closed over. 2014-04-09 19:01:45 +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
Paul Sokolovsky 817e76a1a5 objgenerator.throw(GeneratorExit) is not equivalent to .close().
.throw() propagates any exceptions, and .close() swallows them. Yielding
in reponse to .throw(GeneratorExit) is still fatal, and we need to
handle it for .throw() case separately (previously it was handled only
for .close() case).

Obscure corner cases due to test_pep380.py.
2014-03-31 17:22:37 +03:00
Paul Sokolovsky 1eac05d541 objgenerator: Another obscure case of propagating MP_OBJ_NULL optimization. 2014-03-31 17:22:37 +03:00
Damien George 0997af932f py: Don't wrap necessary function calls in assert. 2014-03-30 21:55:28 +01:00
Damien George 0aa4379543 Merge pull request #399 from pfalcon/gen-defargs
objgenerator: Handle default args to generator functions.
2014-03-30 21:51:49 +01:00
Paul Sokolovsky f39d3b93da py: Implement support for generalized generator protocol.
Iterators and ducktype objects can now be arguments of yield from.
2014-03-30 23:30:16 +03:00
Paul Sokolovsky 7fafb28f6d objgenerator: Handle default args to generator functions.
Addresses #397.
2014-03-30 20:25:19 +03:00
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
Paul Sokolovsky ee5ecc9de2 objgenerator.throw: Instantiate if exception type passed, just as "raise".
Caught by CPython test_pep380.py.
2014-03-30 13:21:11 +03:00
Paul Sokolovsky 9a54a22318 objgenerator.throw(): Throwing GeneratorExit is equivalent to .close().
According to PEP380 and caught by CPython test_pep380.py .
2014-03-30 13:21:11 +03:00
Paul Sokolovsky 6ae237d2bd objgenerator: Store proper code_info pointer. 2014-03-30 04:16:58 +03:00
Paul Sokolovsky aaff716189 objgenerator: mp_obj_gen_resume() suitable only for generators. 2014-03-30 04:16:43 +03:00
Damien George 89f94b51ab py: Rename mp_exc_stack to mp_exc_stack_t. 2014-03-30 00:57:09 +00:00
Damien George 3e1a5c10c5 py: Rename old const type objects to mp_type_* for consistency. 2014-03-29 13:43:38 +00:00
Damien George 07ddab529c py: Change mp_const_* objects to macros.
Addresses issue #388.
2014-03-29 13:15:08 +00:00
Paul Sokolovsky c4d589e2bb objgenerator: close(): Throw instance of GeneratorExit (not type).
To comply with Python semantics and allow use of mp_obj_is_subclass_fast()
for exception matching.
2014-03-28 02:40:26 +02:00
Damien George bee17b00e3 py: Put n_state for bytecode in the bytecode prelude.
Rationale: setting up the stack (state for locals and exceptions) is
really part of the "code", it's the prelude of the function.  For
example, native code adjusts the stack pointer on entry to the function.
Native code doesn't need to know n_state for any other reason.  So
putting the state size in the bytecode prelude is sensible.

It reduced ROM usage on STM by about 30 bytes :)  And makes it easier to
pass information about the bytecode between functions.
2014-03-27 11:07:04 +00:00
Damien George 8dcc0c7924 py: Calculate maximum exception stack size in compiler. 2014-03-27 10:55:21 +00:00
Damien George 9b196cddab Remove mp_obj_type_t.methods entry and use .locals_dict instead.
Originally, .methods was used for methods in a ROM class, and
locals_dict for methods in a user-created class.  That distinction is
unnecessary, and we can use locals_dict for ROM classes now that we have
ROMable maps.

This removes an entry in the bloated mp_obj_type_t struct, saving a word
for each ROM object and each RAM object.  ROM objects that have a
methods table (now a locals_dict) need an extra word in total (removed
the methods pointer (1 word), no longer need the sentinel (2 words), but
now need an mp_obj_dict_t wrapper (4 words)).  But RAM objects save a
word because they never used the methods entry.

Overall the ROM usage is down by a few hundred bytes, and RAM usage is
down 1 word per user-defined type/class.

There is less code (no need to check 2 tables), and now consistent with
the way ROM modules have their tables initialised.

Efficiency is very close to equivaluent.
2014-03-26 21:47:19 +00:00
Damien George c12b2213c1 Change mp_method_t.name from const char * to qstr.
Addresses issue #377.
2014-03-26 20:15:40 +00:00
Damien George 69b3ba0df3 py: Swap around the double return value of mp_obj_gen_resume.
Just to keep things consistent :)
2014-03-26 19:33:23 +00:00
Damien George 66eaf84b8c py: Replace mp_const_stop_iteration object with MP_OBJ_NULL. 2014-03-26 19:27:58 +00:00
Damien George 548e76cfd6 py: Use _is_subclass_fast instead of _exception_match. 2014-03-26 18:55:29 +00:00
Paul Sokolovsky 962b1cd1b1 objgenerator: Implement return with value and .close() method.
Return with value gets converted to StopIteration(value). Implementation
keeps optimizing against creating of possibly unneeded exception objects,
so there're considerable refactoring to implement these features.
2014-03-26 15:40:58 +02:00
Paul Sokolovsky 8dc768b96f objgenerator: Add comments for latest mp_obj_gen_instance_t refactors. 2014-03-22 23:42:22 +02:00
Paul Sokolovsky 48caa09a9d objgenerator: Implement .throw() method to throw exceptions into generator. 2014-03-22 17:55:42 +02:00
Paul Sokolovsky 61fd20f168 objgenerator: Implement throwing exceptions out of generator. 2014-03-22 17:55:42 +02:00
Paul Sokolovsky c0abc28aa1 objgenerator: Keep exception stack within generator object, like value stack.
This is required to properly handle exceptions across yields.
2014-03-22 17:55:42 +02:00
xbe efe3422394 py: Clean up includes.
Remove unnecessary includes. Add includes that improve portability.
2014-03-17 02:43:40 -07:00
Damien George c8f78bc280 py: VM never throws an exception, instead returns a status and value.
Addresses issue #290, and hopefully sets up things to allow generators
throwing exceptions, etc.
2014-02-15 22:55:00 +00:00
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 a71c83a1d1 Change mp_obj_type_t.name from const char * to qstr.
Ultimately all static strings should be qstr.  This entry in the type
structure is only used for printing error messages (to tell the type of
the bad argument), and printing objects that don't supply a .print method.
2014-02-15 11:34:50 +00:00
Damien George 099a9cb575 Remove mp_obj_new_exception_msg_1_arg and _2_arg. 2014-02-12 23:02:19 +00:00
Paul Sokolovsky d5df6cd44a Replace global "static" -> "STATIC", to allow "analysis builds". Part 1.
Some tools do not support local/static symbols (one example is GNU ld map file).
Exposing all functions will allow to do detailed size comparisons, etc.

Also, added bunch of statics where they were missing, and replaced few identity
functions with global mp_identity().
2014-02-12 18:21:11 +02:00
Damien George d0691ccaec py: Simplify fastn in VM; reduce size of unique code struct.
We still have FAST_[0,1,2] byte codes, but they now just access the
fastn array (before they had special local variables).  It's now
simpler, a bit faster, and uses a bit less stack space (on STM at least,
which is most important).

The only reason now to keep FAST_[0,1,2] byte codes is for compressed
byte code size.
2014-01-29 20:30:52 +00:00
Paul Sokolovsky 14d28be344 gen.send(): Throw StopIteration. Also, explicitly shutdown finished gen.
Otherwise, some generator statements still may be spuriously executed on
subsequent calls to next()/send().
2014-01-27 01:07:58 +02:00
Paul Sokolovsky bf38e2a03a Implement send() method for generators. 2014-01-26 20:56:08 +02:00
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
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 20006dbba9 Make VM stack grow upwards, and so no reversed args arrays.
Change state layout in VM so the stack starts at state[0] and grows
upwards.  Locals are at the top end of the state and number downwards.
This cleans up a lot of the interface connecting the VM to C: now all
functions that take an array of Micro Python objects are in order (ie no
longer in reverse).

Also clean up C API with keyword arguments (call_n and call_n_kw
replaced with single call method that takes keyword arguments).  And now
make_new takes keyword arguments.

emitnative.c has not yet been changed to comply with the new order of
stack layout.
2014-01-18 14:10:48 +00:00
Paul Sokolovsky 76d982ef34 type->print(): Distinguish str() and repr() variety by passing extra param. 2014-01-15 02:15:38 +02:00
Damien George 97209d38e1 Merge branch 'cplusplus' of https://github.com/ian-v/micropython into ian-v-cplusplus
Conflicts:
	py/objcomplex.c
2014-01-07 15:58:30 +00:00
ian-v 5fd8fd2c16 Revert MP_BOOL, etc. and use <stdbool.h> instead 2014-01-06 13:51:53 -08:00
ian-v 7a16fadbf8 Co-exist with C++ (issue #85) 2014-01-06 09:52:29 -08:00