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2014-04-09py: Clear state to MP_OBJ_NULL before executing byte code.Damien George
2014-04-09py: Generators can have their locals closed over.Damien George
2014-04-05py: Change nlr_jump to nlr_raise, to aid in debugging.Damien George
This does not affect code size or performance when debugging turned off. To address issue #420.
2014-03-31objgenerator.throw(GeneratorExit) is not equivalent to .close().Paul Sokolovsky
.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.
2014-03-31objgenerator: Another obscure case of propagating MP_OBJ_NULL optimization.Paul Sokolovsky
2014-03-30py: Don't wrap necessary function calls in assert.Damien George
2014-03-30Merge pull request #399 from pfalcon/gen-defargsDamien George
objgenerator: Handle default args to generator functions.
2014-03-30py: Implement support for generalized generator protocol.Paul Sokolovsky
Iterators and ducktype objects can now be arguments of yield from.
2014-03-30objgenerator: Handle default args to generator functions.Paul Sokolovsky
Addresses #397.
2014-03-30Merge map.h into obj.h.Damien George
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.
2014-03-30Rename rt_* to mp_*.Damien George
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.
2014-03-30objgenerator.throw: Instantiate if exception type passed, just as "raise".Paul Sokolovsky
Caught by CPython test_pep380.py.
2014-03-30objgenerator.throw(): Throwing GeneratorExit is equivalent to .close().Paul Sokolovsky
According to PEP380 and caught by CPython test_pep380.py .
2014-03-30objgenerator: Store proper code_info pointer.Paul Sokolovsky
2014-03-30objgenerator: mp_obj_gen_resume() suitable only for generators.Paul Sokolovsky
2014-03-30py: Rename mp_exc_stack to mp_exc_stack_t.Damien George
2014-03-29py: Rename old const type objects to mp_type_* for consistency.Damien George
2014-03-29py: Change mp_const_* objects to macros.Damien George
Addresses issue #388.
2014-03-28objgenerator: close(): Throw instance of GeneratorExit (not type).Paul Sokolovsky
To comply with Python semantics and allow use of mp_obj_is_subclass_fast() for exception matching.
2014-03-27py: Put n_state for bytecode in the bytecode prelude.Damien George
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.
2014-03-27py: Calculate maximum exception stack size in compiler.Damien George
2014-03-26Remove mp_obj_type_t.methods entry and use .locals_dict instead.Damien George
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.
2014-03-26Change mp_method_t.name from const char * to qstr.Damien George
Addresses issue #377.
2014-03-26py: Swap around the double return value of mp_obj_gen_resume.Damien George
Just to keep things consistent :)
2014-03-26py: Replace mp_const_stop_iteration object with MP_OBJ_NULL.Damien George
2014-03-26py: Use _is_subclass_fast instead of _exception_match.Damien George
2014-03-26objgenerator: Implement return with value and .close() method.Paul Sokolovsky
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.
2014-03-22objgenerator: Add comments for latest mp_obj_gen_instance_t refactors.Paul Sokolovsky
2014-03-22objgenerator: Implement .throw() method to throw exceptions into generator.Paul Sokolovsky
2014-03-22objgenerator: Implement throwing exceptions out of generator.Paul Sokolovsky
2014-03-22objgenerator: Keep exception stack within generator object, like value stack.Paul Sokolovsky
This is required to properly handle exceptions across yields.
2014-03-17py: Clean up includes.xbe
Remove unnecessary includes. Add includes that improve portability.
2014-02-15py: VM never throws an exception, instead returns a status and value.Damien George
Addresses issue #290, and hopefully sets up things to allow generators throwing exceptions, etc.
2014-02-15Implement proper exception type hierarchy.Damien George
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.
2014-02-15Change mp_obj_type_t.name from const char * to qstr.Damien George
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.
2014-02-12Remove mp_obj_new_exception_msg_1_arg and _2_arg.Damien George
2014-02-12Replace global "static" -> "STATIC", to allow "analysis builds". Part 1.Paul Sokolovsky
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().
2014-01-29py: Simplify fastn in VM; reduce size of unique code struct.Damien George
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.
2014-01-27gen.send(): Throw StopIteration. Also, explicitly shutdown finished gen.Paul Sokolovsky
Otherwise, some generator statements still may be spuriously executed on subsequent calls to next()/send().
2014-01-26Implement send() method for generators.Paul Sokolovsky
2014-01-21Revamp qstrs: they now include length and hash.Damien George
Can now have null bytes in strings. Can define ROM qstrs per port using qstrdefsport.h
2014-01-18Add source file name and line number to error messages.Damien George
Byte code has a map from byte-code offset to source-code line number, used to give better error messages.
2014-01-18Make VM stack grow upwards, and so no reversed args arrays.Damien George
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.
2014-01-15type->print(): Distinguish str() and repr() variety by passing extra param.Paul Sokolovsky
2014-01-07Merge branch 'cplusplus' of https://github.com/ian-v/micropython into ↵Damien George
ian-v-cplusplus Conflicts: py/objcomplex.c
2014-01-06Revert MP_BOOL, etc. and use <stdbool.h> insteadian-v
2014-01-06Co-exist with C++ (issue #85)ian-v
2014-01-05Convert many object types structs to use C99 tagged initializer syntax.Paul Sokolovsky
2014-01-04Convert Python types to proper Python type hierarchy.Damien George
Now much more inline with how CPython does types.
2014-01-04Split qstr into pools, and put initial pool in ROM.Damien George
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).