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2017-12-09py/runtime: When tracing unary/binary ops, output op (method) name.Paul Sokolovsky
E.g.: >>> 1+1 binary 26 __add__ 3 3 Output is similar to bytecode dump (numeric code, then op name).
2017-11-24py/runtime: Add MP_BINARY_OP_CONTAINS as reverse of MP_BINARY_OP_IN.Damien George
Before this patch MP_BINARY_OP_IN had two meanings: coming from bytecode it meant that the args needed to be swapped, but coming from within the runtime meant that the args were already in the correct order. This lead to some confusion in the code and comments stating how args were reversed. It also lead to 2 bugs: 1) containment for a subclass of a native type didn't work; 2) the expression "{True} in True" would illegally succeed and return True. In both of these cases it was because the args to MP_BINARY_OP_IN ended up being reversed twice. To fix these things this patch introduces MP_BINARY_OP_CONTAINS which corresponds exactly to the __contains__ special method, and this is the operator that built-in types should implement. MP_BINARY_OP_IN is now only emitted by the compiler and is converted to MP_BINARY_OP_CONTAINS by swapping the arguments.
2017-11-24py/runtime: Simplify handling of containment binary operator.Damien George
In mp_binary_op, there is no need to explicitly check for type->getiter being non-null and raising an exception because this is handled exactly by mp_getiter(). So just call the latter unconditionally.
2017-10-13extmod/uos_dupterm: Update uos.dupterm() and helper funcs to have index.Damien George
The uos.dupterm() signature and behaviour is updated to reflect the latest enhancements in the docs. It has minor backwards incompatibility in that it no longer accepts zero arguments. The dupterm_rx helper function is moved from esp8266 to extmod and generalised to support multiple dupterm slots. A port can specify multiple slots by defining the MICROPY_PY_OS_DUPTERM config macro to an integer, being the number of slots it wants to have; 0 means to disable the dupterm feature altogether. The unix and esp8266 ports are updated to work with the new interface and are otherwise unchanged with respect to functionality.
2017-10-04all: Remove inclusion of internal py header files.Damien George
Header files that are considered internal to the py core and should not normally be included directly are: py/nlr.h - internal nlr configuration and declarations py/bc0.h - contains bytecode macro definitions py/runtime0.h - contains basic runtime enums Instead, the top-level header files to include are one of: py/obj.h - includes runtime0.h and defines everything to use the mp_obj_t type py/runtime.h - includes mpstate.h and hence nlr.h, obj.h, runtime0.h, and defines everything to use the general runtime support functions Additional, specific headers (eg py/objlist.h) can be included if needed.
2017-09-18py/modbuiltins: Implement abs() by dispatching to MP_UNARY_OP_ABS.Paul Sokolovsky
This allows user classes to implement __abs__ special method, and saves code size (104 bytes for x86_64), even though during refactor, an issue was fixed and few optimizations were made: * abs() of minimum (negative) small int value is calculated properly. * objint_longlong and objint_mpz avoid allocating new object is the argument is already non-negative.
2017-09-10py/runtime: Implement dispatch for "reverse op" special methods.Paul Sokolovsky
If, for class X, X.__add__(Y) doesn't exist (or returns NotImplemented), try Y.__radd__(X) instead. This patch could be simpler, but requires undoing operand swap and operation switch to get non-confusing error message in case __radd__ doesn't exist.
2017-08-31py: Make m_malloc_fail() have void return type, since it doesn't return.Damien George
2017-08-29all: Convert mp_uint_t to mp_unary_op_t/mp_binary_op_t where appropriateDamien George
The unary-op/binary-op enums are already defined, and there are no arithmetic tricks used with these types, so it makes sense to use the correct enum type for arguments that take these values. It also reduces code size quite a bit for nan-boxing builds.
2017-08-15py: Add verbose debug compile-time flag MICROPY_DEBUG_VERBOSE.Stefan Naumann
It enables all the DEBUG_printf outputs in the py/ source code.
2017-08-13all: Raise exceptions via mp_raise_XXXJavier Candeira
- Changed: ValueError, TypeError, NotImplementedError - OSError invocations unchanged, because the corresponding utility function takes ints, not strings like the long form invocation. - OverflowError, IndexError and RuntimeError etc. not changed for now until we decide whether to add new utility functions.
2017-07-31all: Use the name MicroPython consistently in commentsAlexander Steffen
There were several different spellings of MicroPython present in comments, when there should be only one.
2017-07-19all: Remove trailing spaces, per coding conventions.Damien George
2017-07-07py,extmod: Some casts and minor refactors to quiet compiler warnings.Tom Collins
2017-07-04py/runtime: Mark m_malloc_fail() as NORETURN.Damien George
2017-04-10py/runtime: When init'ing kbd intr exc, use tuple ptr instead of object.Damien George
2017-03-29py: Change mp_uint_t to size_t for mp_obj_str_get_data len arg.Damien George
2017-03-29py: Convert mp_uint_t to size_t for tuple/list accessors.Damien George
This patch changes mp_uint_t to size_t for the len argument of the following public facing C functions: mp_obj_tuple_get mp_obj_list_get mp_obj_get_array These functions take a pointer to the len argument (to be filled in by the function) and callers of these functions should update their code so the type of len is changed to size_t. For ports that don't use nan-boxing there should be no change in generate code because the size of the type remains the same (word sized), and in a lot of cases there won't even be a compiler warning if the type remains as mp_uint_t. The reason for this change is to standardise on the use of size_t for variables that count memory (or memory related) sizes/lengths. It helps builds that use nan-boxing.
2017-03-28py: Use mp_raise_TypeError/mp_raise_ValueError helpers where possible.Damien George
Saves 168 bytes on bare-arm.
2017-03-24py: Use mp_locals/mp_globals accessor funcs instead of MP_STATE_CTX.Damien George
To improve maintainability of the code.
2017-03-20py: Add micropython.schedule() function and associated runtime code.Damien George
2017-03-07py: Use mp_obj_get_array where sequence may be a tuple or a list.Krzysztof Blazewicz
2017-03-07py/runtime.c: Remove optimization of '*a,=b', it caused a bug.Krzysztof Blazewicz
*a, = b should always make a copy of b, instead, before this patch if b was a list it would copy only a reference to it.
2017-02-24py/runtime: mp_raise_msg(): Accept NULL argument for message.Paul Sokolovsky
In this case, raise an exception without a message. This would allow to shove few code bytes comparing to currently used mp_raise_msg(..., "") pattern. (Actual savings depend on function code alignment used by a particular platform.)
2017-02-16py: De-optimise some uses of mp_getiter, so they don't use the C stack.Damien George
In these cases the heap is anyway used to create a new object so no real need to use the C stack for iterating. It saves a few bytes of code size.
2017-02-16py/runtime: Optimise case of identity iterator so it doesn't alloc RAM.Damien George
2017-02-16py: Add iter_buf to getiter type method.Damien George
Allows to iterate over the following without allocating on the heap: - tuple - list - string, bytes - bytearray, array - dict (not dict.keys, dict.values, dict.items) - set, frozenset Allows to call the following without heap memory: - all, any, min, max, sum TODO: still need to allocate stack memory in bytecode for iter_buf.
2017-02-16py/runtime: Convert mp_uint_t to size_t where appropriate.Damien George
2017-01-27extmod: Add generic VFS sub-system.Damien George
This provides mp_vfs_XXX functions (eg mount, open, listdir) which are agnostic to the underlying filesystem type, and just require an object with the relevant filesystem-like methods (eg .mount, .open, .listidr) which can then be mounted. These mp_vfs_XXX functions would typically be used by a port to implement the "uos" module, and mp_vfs_open would be the builtin open function. This feature is controlled by MICROPY_VFS, disabled by default.
2017-01-26py/objmodule: Move module init/deinit code into runtime functions.Damien George
They are one-line functions and having them inline in mp_init/mp_deinit eliminates the overhead of a function call, and matches how other state is initialised in mp_init.
2017-01-17py/runtime: Refactor default case of switch to remove assert(0).Damien George
2017-01-17py/runtime: Fix handling of throw() when resuming generator.Damien George
If GeneratorExit is injected as a throw-value then that should lead to the close() method being called, if it exists. If close() does not exist then throw() should not be called, and this patch fixes this.
2017-01-17py/runtime: Refactor assert(0) to improve coverage.Damien George
2016-12-15py: Add MICROPY_KBD_EXCEPTION config option to provide mp_kbd_exception.Damien George
Defining and initialising mp_kbd_exception is boiler-plate code and so the core runtime can provide it, instead of each port needing to do it themselves. The exception object is placed in the VM state rather than on the heap.
2016-12-14py/runtime: Zero out fs_user_mount array in mp_init.Damien George
There's no need to force ports to copy-and-paste this initialisation code. If FSUSERMOUNT is enabled then this zeroing out must be done.
2016-11-15py/runtime: mp_resume: Fix exception handling for nanbox port.Paul Sokolovsky
2016-11-15py/runtime: mp_resume: Handle exceptions in Python __next__().Paul Sokolovsky
This includes StopIteration and thus are important to make Python-coded iterables work with yield from/await. Exceptions in Python send() are still not handled and left for future consideration and optimization.
2016-10-21py: Specialise builtin funcs to use separate type for fixed arg count.Damien George
Builtin functions with a fixed number of arguments (0, 1, 2 or 3) are quite common. Before this patch the wrapper for such a function cost 3 machine words. After this patch it only takes 2, which can reduce the code size by quite a bit (and pays off even more, the more functions are added). It also makes function dispatch slightly more efficient in CPU usage, and furthermore reduces stack usage for these cases. On x86 and Thumb archs the dispatch functions are now tail-call optimised by the compiler. The bare-arm port has its code size increase by 76 bytes, but stmhal drops by 904 bytes. Stack usage by these builtin functions is decreased by 48 bytes on Thumb2 archs.
2016-10-17py: Use mp_raise_msg helper function where appropriate.Damien George
Saves the following number of bytes of code space: 176 for bare-arm, 352 for minimal, 272 for unix x86-64, 140 for stmhal, 120 for esp8266.
2016-10-07py: Add mp_raise_OSError(errno) helper function.Damien George
This is an often used code pattern, and its use reduces code size of the core by about 100 bytes.
2016-09-22all: Remove 'name' member from mp_obj_module_t struct.Damien George
One can instead lookup __name__ in the modules dict to get the value.
2016-09-02py: If str/bytes hash is 0 then explicitly compute it.Damien George
2016-08-12py/runtime: Factor out exception raising helpers.Paul Sokolovsky
Introduce mp_raise_msg(), mp_raise_ValueError(), mp_raise_TypeError() instead of previous pattern nlr_raise(mp_obj_new_exception_msg(...)). Save few bytes on each call, which are many.
2016-06-28py: Implement a simple global interpreter lock.Damien George
This makes the VM/runtime thread safe, at the cost of not being able to run code in parallel.
2016-05-07py/runtime: Properly handle passing user mappings to ** keyword args.Damien George
2016-04-21py: Fix bug passing a string as a keyword arg in a dict.Damien George
Addresses issue #1998.
2016-03-14py: Fix passing of some wide int types to printf varg format list.Damien George
Passing an mp_uint_t to a %d printf format is incorrect for builds where mp_uint_t is larger than word size (eg a nanboxing build). This patch adds some simple casting to int in these cases.
2016-01-29py/runtime: mp_stack_ctrl_init() should be called immediately on startup.Paul Sokolovsky
Calling it from mp_init() is too late for some ports (like Unix), and leads to incomplete stack frame being captured, with following GC issues. So, now each port should call mp_stack_ctrl_init() on its own, ASAP after startup, and taking special precautions so it really was called before stack variables get allocated (because if such variable with a pointer is missed, it may lead to over-collecting (typical symptom is segfaulting)).
2016-01-11py: Change type of .make_new and .call args: mp_uint_t becomes size_t.Damien George
This patch changes the type signature of .make_new and .call object method slots to use size_t for n_args and n_kw (was mp_uint_t. Makes code more efficient when mp_uint_t is larger than a machine word. Doesn't affect ports when size_t and mp_uint_t have the same size.
2016-01-08py/runtime: Use appropriate printf fmt for malloc num_bytes.Damien George
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