head 1.2; access; symbols micropython-1-5-2-base:1.1.1.1 MICROPYTHON:1.1.1; locks; strict; comment @ * @; 1.2 date 2026.10.15.05.28.39; author agc; state dead; branches; next 1.1; commitid aHLdC1EGCUYk7xZG; 1.1 date 2016.01.14.01.38.50; author agc; state Exp; branches 1.1.1.1; next ; commitid Q8liT0v6zMF95QQy; 1.1.1.1 date 2016.01.14.01.38.50; author agc; state Exp; branches; next ; commitid Q8liT0v6zMF95QQy; desc @@ 1.2 log @Remove waaaay old micropython sources which haven't been relevant for 10 years @ text @/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2013, 2014 Damien P. George * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include #include #include #include #include "py/mpstate.h" #include "py/objlist.h" #include "py/objstr.h" #include "py/objtuple.h" #include "py/objtype.h" #include "py/runtime.h" #include "py/gc.h" // Instance of MemoryError exception - needed by mp_malloc_fail const mp_obj_exception_t mp_const_MemoryError_obj = {{&mp_type_MemoryError}, 0, 0, NULL, (mp_obj_tuple_t*)&mp_const_empty_tuple_obj}; // Optionally allocated buffer for storing the first argument of an exception // allocated when the heap is locked. #if MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF # if MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE > 0 #define mp_emergency_exception_buf_size MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE void mp_init_emergency_exception_buf(void) { // Nothing to do since the buffer was declared statically. We put this // definition here so that the calling code can call this function // regardless of how its configured (makes the calling code a bit cleaner). } #else #define mp_emergency_exception_buf_size MP_STATE_VM(mp_emergency_exception_buf_size) void mp_init_emergency_exception_buf(void) { mp_emergency_exception_buf_size = 0; MP_STATE_VM(mp_emergency_exception_buf) = NULL; } mp_obj_t mp_alloc_emergency_exception_buf(mp_obj_t size_in) { mp_int_t size = mp_obj_get_int(size_in); void *buf = NULL; if (size > 0) { buf = m_new(byte, size); } int old_size = mp_emergency_exception_buf_size; void *old_buf = MP_STATE_VM(mp_emergency_exception_buf); // Update the 2 variables atomically so that an interrupt can't occur // between the assignments. mp_uint_t atomic_state = MICROPY_BEGIN_ATOMIC_SECTION(); mp_emergency_exception_buf_size = size; MP_STATE_VM(mp_emergency_exception_buf) = buf; MICROPY_END_ATOMIC_SECTION(atomic_state); if (old_buf != NULL) { m_del(byte, old_buf, old_size); } return mp_const_none; } #endif #endif // MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF // Instance of GeneratorExit exception - needed by generator.close() // This would belong to objgenerator.c, but to keep mp_obj_exception_t // definition module-private so far, have it here. const mp_obj_exception_t mp_const_GeneratorExit_obj = {{&mp_type_GeneratorExit}, 0, 0, NULL, (mp_obj_tuple_t*)&mp_const_empty_tuple_obj}; STATIC void mp_obj_exception_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) { mp_obj_exception_t *o = MP_OBJ_TO_PTR(o_in); mp_print_kind_t k = kind & ~PRINT_EXC_SUBCLASS; bool is_subclass = kind & PRINT_EXC_SUBCLASS; if (!is_subclass && (k == PRINT_REPR || k == PRINT_EXC)) { mp_print_str(print, qstr_str(o->base.type->name)); } if (k == PRINT_EXC) { mp_print_str(print, ": "); } if (k == PRINT_STR || k == PRINT_EXC) { if (o->args == NULL || o->args->len == 0) { mp_print_str(print, ""); return; } else if (o->args->len == 1) { mp_obj_print_helper(print, o->args->items[0], PRINT_STR); return; } } mp_obj_tuple_print(print, MP_OBJ_FROM_PTR(o->args), kind); } mp_obj_t mp_obj_exception_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { mp_arg_check_num(n_args, n_kw, 0, MP_OBJ_FUN_ARGS_MAX, false); mp_obj_exception_t *o = m_new_obj_var_maybe(mp_obj_exception_t, mp_obj_t, 0); if (o == NULL) { // Couldn't allocate heap memory; use local data instead. o = &MP_STATE_VM(mp_emergency_exception_obj); // We can't store any args. o->args = (mp_obj_tuple_t*)&mp_const_empty_tuple_obj; } else { o->args = MP_OBJ_TO_PTR(mp_obj_new_tuple(n_args, args)); } o->base.type = MP_OBJ_TO_PTR(type_in); o->traceback_data = NULL; return MP_OBJ_FROM_PTR(o); } // Get exception "value" - that is, first argument, or None mp_obj_t mp_obj_exception_get_value(mp_obj_t self_in) { mp_obj_exception_t *self = MP_OBJ_TO_PTR(self_in); if (self->args->len == 0) { return mp_const_none; } else { return self->args->items[0]; } } STATIC void exception_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) { if (dest[0] != MP_OBJ_NULL) { // not load attribute return; } mp_obj_exception_t *self = MP_OBJ_TO_PTR(self_in); if (attr == MP_QSTR_args) { dest[0] = MP_OBJ_FROM_PTR(self->args); } else if (self->base.type == &mp_type_StopIteration && attr == MP_QSTR_value) { dest[0] = mp_obj_exception_get_value(self_in); } } STATIC mp_obj_t exc___init__(mp_uint_t n_args, const mp_obj_t *args) { mp_obj_exception_t *self = MP_OBJ_TO_PTR(args[0]); mp_obj_t argst = mp_obj_new_tuple(n_args - 1, args + 1); self->args = MP_OBJ_TO_PTR(argst); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(exc___init___obj, 1, MP_OBJ_FUN_ARGS_MAX, exc___init__); STATIC const mp_rom_map_elem_t exc_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR___init__), MP_ROM_PTR(&exc___init___obj) }, }; STATIC MP_DEFINE_CONST_DICT(exc_locals_dict, exc_locals_dict_table); const mp_obj_type_t mp_type_BaseException = { { &mp_type_type }, .name = MP_QSTR_BaseException, .print = mp_obj_exception_print, .make_new = mp_obj_exception_make_new, .attr = exception_attr, .locals_dict = (mp_obj_dict_t*)&exc_locals_dict, }; #define MP_DEFINE_EXCEPTION_BASE(base_name) \ STATIC const mp_rom_obj_tuple_t mp_type_ ## base_name ## _base_tuple = {{&mp_type_tuple}, 1, {MP_ROM_PTR(&mp_type_ ## base_name)}};\ #define MP_DEFINE_EXCEPTION(exc_name, base_name) \ const mp_obj_type_t mp_type_ ## exc_name = { \ { &mp_type_type }, \ .name = MP_QSTR_ ## exc_name, \ .print = mp_obj_exception_print, \ .make_new = mp_obj_exception_make_new, \ .attr = exception_attr, \ .bases_tuple = (mp_obj_tuple_t*)(mp_rom_obj_tuple_t*)&mp_type_ ## base_name ## _base_tuple, \ }; // List of all exceptions, arranged as in the table at: // http://docs.python.org/3/library/exceptions.html MP_DEFINE_EXCEPTION_BASE(BaseException) MP_DEFINE_EXCEPTION(SystemExit, BaseException) MP_DEFINE_EXCEPTION(KeyboardInterrupt, BaseException) MP_DEFINE_EXCEPTION(GeneratorExit, BaseException) MP_DEFINE_EXCEPTION(Exception, BaseException) MP_DEFINE_EXCEPTION_BASE(Exception) MP_DEFINE_EXCEPTION(StopIteration, Exception) MP_DEFINE_EXCEPTION(ArithmeticError, Exception) MP_DEFINE_EXCEPTION_BASE(ArithmeticError) //MP_DEFINE_EXCEPTION(FloatingPointError, ArithmeticError) MP_DEFINE_EXCEPTION(OverflowError, ArithmeticError) MP_DEFINE_EXCEPTION(ZeroDivisionError, ArithmeticError) MP_DEFINE_EXCEPTION(AssertionError, Exception) MP_DEFINE_EXCEPTION(AttributeError, Exception) //MP_DEFINE_EXCEPTION(BufferError, Exception) //MP_DEFINE_EXCEPTION(EnvironmentError, Exception) use OSError instead MP_DEFINE_EXCEPTION(EOFError, Exception) MP_DEFINE_EXCEPTION(ImportError, Exception) //MP_DEFINE_EXCEPTION(IOError, Exception) use OSError instead MP_DEFINE_EXCEPTION(LookupError, Exception) MP_DEFINE_EXCEPTION_BASE(LookupError) MP_DEFINE_EXCEPTION(IndexError, LookupError) MP_DEFINE_EXCEPTION(KeyError, LookupError) MP_DEFINE_EXCEPTION(MemoryError, Exception) MP_DEFINE_EXCEPTION(NameError, Exception) /* MP_DEFINE_EXCEPTION_BASE(NameError) MP_DEFINE_EXCEPTION(UnboundLocalError, NameError) */ MP_DEFINE_EXCEPTION(OSError, Exception) #if MICROPY_PY_BUILTINS_TIMEOUTERROR MP_DEFINE_EXCEPTION_BASE(OSError) MP_DEFINE_EXCEPTION(TimeoutError, OSError) #endif /* MP_DEFINE_EXCEPTION(BlockingIOError, OSError) MP_DEFINE_EXCEPTION(ChildProcessError, OSError) MP_DEFINE_EXCEPTION(ConnectionError, OSError) MP_DEFINE_EXCEPTION(BrokenPipeError, ConnectionError) MP_DEFINE_EXCEPTION(ConnectionAbortedError, ConnectionError) MP_DEFINE_EXCEPTION(ConnectionRefusedError, ConnectionError) MP_DEFINE_EXCEPTION(ConnectionResetError, ConnectionError) MP_DEFINE_EXCEPTION(InterruptedError, OSError) MP_DEFINE_EXCEPTION(IsADirectoryError, OSError) MP_DEFINE_EXCEPTION(NotADirectoryError, OSError) MP_DEFINE_EXCEPTION(PermissionError, OSError) MP_DEFINE_EXCEPTION(ProcessLookupError, OSError) MP_DEFINE_EXCEPTION(FileExistsError, OSError) MP_DEFINE_EXCEPTION(FileNotFoundError, OSError) MP_DEFINE_EXCEPTION(ReferenceError, Exception) */ MP_DEFINE_EXCEPTION(RuntimeError, Exception) MP_DEFINE_EXCEPTION_BASE(RuntimeError) MP_DEFINE_EXCEPTION(NotImplementedError, RuntimeError) MP_DEFINE_EXCEPTION(SyntaxError, Exception) MP_DEFINE_EXCEPTION_BASE(SyntaxError) MP_DEFINE_EXCEPTION(IndentationError, SyntaxError) /* MP_DEFINE_EXCEPTION_BASE(IndentationError) MP_DEFINE_EXCEPTION(TabError, IndentationError) */ //MP_DEFINE_EXCEPTION(SystemError, Exception) MP_DEFINE_EXCEPTION(TypeError, Exception) #if MICROPY_EMIT_NATIVE MP_DEFINE_EXCEPTION_BASE(TypeError) MP_DEFINE_EXCEPTION(ViperTypeError, TypeError) #endif MP_DEFINE_EXCEPTION(ValueError, Exception) #if MICROPY_PY_BUILTINS_STR_UNICODE MP_DEFINE_EXCEPTION_BASE(ValueError) MP_DEFINE_EXCEPTION(UnicodeError, ValueError) //TODO: Implement more UnicodeError subclasses which take arguments #endif /* MP_DEFINE_EXCEPTION(Warning, Exception) MP_DEFINE_EXCEPTION_BASE(Warning) MP_DEFINE_EXCEPTION(DeprecationWarning, Warning) MP_DEFINE_EXCEPTION(PendingDeprecationWarning, Warning) MP_DEFINE_EXCEPTION(RuntimeWarning, Warning) MP_DEFINE_EXCEPTION(SyntaxWarning, Warning) MP_DEFINE_EXCEPTION(UserWarning, Warning) MP_DEFINE_EXCEPTION(FutureWarning, Warning) MP_DEFINE_EXCEPTION(ImportWarning, Warning) MP_DEFINE_EXCEPTION(UnicodeWarning, Warning) MP_DEFINE_EXCEPTION(BytesWarning, Warning) MP_DEFINE_EXCEPTION(ResourceWarning, Warning) */ mp_obj_t mp_obj_new_exception(const mp_obj_type_t *exc_type) { return mp_obj_new_exception_args(exc_type, 0, NULL); } // "Optimized" version for common(?) case of having 1 exception arg mp_obj_t mp_obj_new_exception_arg1(const mp_obj_type_t *exc_type, mp_obj_t arg) { return mp_obj_new_exception_args(exc_type, 1, &arg); } mp_obj_t mp_obj_new_exception_args(const mp_obj_type_t *exc_type, mp_uint_t n_args, const mp_obj_t *args) { assert(exc_type->make_new == mp_obj_exception_make_new); return exc_type->make_new(MP_OBJ_FROM_PTR(exc_type), n_args, 0, args); } mp_obj_t mp_obj_new_exception_msg(const mp_obj_type_t *exc_type, const char *msg) { return mp_obj_new_exception_msg_varg(exc_type, msg); } mp_obj_t mp_obj_new_exception_msg_varg(const mp_obj_type_t *exc_type, const char *fmt, ...) { // check that the given type is an exception type assert(exc_type->make_new == mp_obj_exception_make_new); // make exception object mp_obj_exception_t *o = m_new_obj_var_maybe(mp_obj_exception_t, mp_obj_t, 0); if (o == NULL) { // Couldn't allocate heap memory; use local data instead. // Unfortunately, we won't be able to format the string... o = &MP_STATE_VM(mp_emergency_exception_obj); o->base.type = exc_type; o->traceback_data = NULL; o->args = (mp_obj_tuple_t*)&mp_const_empty_tuple_obj; #if MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF // If the user has provided a buffer, then we try to create a tuple // of length 1, which has a string object and the string data. if (mp_emergency_exception_buf_size > (sizeof(mp_obj_tuple_t) + sizeof(mp_obj_str_t) + sizeof(mp_obj_t))) { mp_obj_tuple_t *tuple = (mp_obj_tuple_t *)MP_STATE_VM(mp_emergency_exception_buf); mp_obj_str_t *str = (mp_obj_str_t *)&tuple->items[1]; tuple->base.type = &mp_type_tuple; tuple->len = 1; tuple->items[0] = MP_OBJ_FROM_PTR(str); byte *str_data = (byte *)&str[1]; uint max_len = MP_STATE_VM(mp_emergency_exception_buf) + mp_emergency_exception_buf_size - str_data; vstr_t vstr; vstr_init_fixed_buf(&vstr, max_len, (char *)str_data); va_list ap; va_start(ap, fmt); vstr_vprintf(&vstr, fmt, ap); va_end(ap); str->base.type = &mp_type_str; str->hash = qstr_compute_hash(str_data, str->len); str->len = vstr.len; str->data = str_data; o->args = tuple; uint offset = &str_data[str->len] - MP_STATE_VM(mp_emergency_exception_buf); offset += sizeof(void *) - 1; offset &= ~(sizeof(void *) - 1); if ((mp_emergency_exception_buf_size - offset) > (sizeof(mp_uint_t) * 3)) { // We have room to store some traceback. o->traceback_data = (mp_uint_t*)((byte *)MP_STATE_VM(mp_emergency_exception_buf) + offset); o->traceback_alloc = (MP_STATE_VM(mp_emergency_exception_buf) + mp_emergency_exception_buf_size - (byte *)o->traceback_data) / sizeof(o->traceback_data[0]); o->traceback_len = 0; } } #endif // MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF } else { o->base.type = exc_type; o->traceback_data = NULL; o->args = MP_OBJ_TO_PTR(mp_obj_new_tuple(1, NULL)); if (fmt == NULL) { // no message assert(0); } else { if (strchr(fmt, '%') == NULL) { // no formatting substitutions, avoid allocating vstr. o->args->items[0] = mp_obj_new_str(fmt, strlen(fmt), false); } else { // render exception message and store as .args[0] va_list ap; vstr_t vstr; vstr_init(&vstr, 16); va_start(ap, fmt); vstr_vprintf(&vstr, fmt, ap); va_end(ap); o->args->items[0] = mp_obj_new_str_from_vstr(&mp_type_str, &vstr); } } } return MP_OBJ_FROM_PTR(o); } // return true if the given object is an exception type bool mp_obj_is_exception_type(mp_obj_t self_in) { if (MP_OBJ_IS_TYPE(self_in, &mp_type_type)) { // optimisation when self_in is a builtin exception mp_obj_type_t *self = MP_OBJ_TO_PTR(self_in); if (self->make_new == mp_obj_exception_make_new) { return true; } } return mp_obj_is_subclass_fast(self_in, MP_OBJ_FROM_PTR(&mp_type_BaseException)); } // return true if the given object is an instance of an exception type bool mp_obj_is_exception_instance(mp_obj_t self_in) { return mp_obj_is_exception_type(MP_OBJ_FROM_PTR(mp_obj_get_type(self_in))); } // Return true if exception (type or instance) is a subclass of given // exception type. Assumes exc_type is a subclass of BaseException, as // defined by mp_obj_is_exception_type(exc_type). bool mp_obj_exception_match(mp_obj_t exc, mp_const_obj_t exc_type) { // if exc is an instance of an exception, then extract and use its type if (mp_obj_is_exception_instance(exc)) { exc = MP_OBJ_FROM_PTR(mp_obj_get_type(exc)); } return mp_obj_is_subclass_fast(exc, exc_type); } // traceback handling functions #define GET_NATIVE_EXCEPTION(self, self_in) \ /* make sure self_in is an exception instance */ \ assert(mp_obj_is_exception_instance(self_in)); \ mp_obj_exception_t *self; \ if (mp_obj_is_native_exception_instance(self_in)) { \ self = MP_OBJ_TO_PTR(self_in); \ } else { \ self = MP_OBJ_TO_PTR(((mp_obj_instance_t*)MP_OBJ_TO_PTR(self_in))->subobj[0]); \ } void mp_obj_exception_clear_traceback(mp_obj_t self_in) { GET_NATIVE_EXCEPTION(self, self_in); // just set the traceback to the null object // we don't want to call any memory management functions here self->traceback_data = NULL; } void mp_obj_exception_add_traceback(mp_obj_t self_in, qstr file, mp_uint_t line, qstr block) { GET_NATIVE_EXCEPTION(self, self_in); // append this traceback info to traceback data // if memory allocation fails (eg because gc is locked), just return if (self->traceback_data == NULL) { self->traceback_data = m_new_maybe(mp_uint_t, 3); if (self->traceback_data == NULL) { return; } self->traceback_alloc = 3; self->traceback_len = 0; } else if (self->traceback_len + 3 > self->traceback_alloc) { // be conservative with growing traceback data mp_uint_t *tb_data = m_renew_maybe(mp_uint_t, self->traceback_data, self->traceback_alloc, self->traceback_alloc + 3, true); if (tb_data == NULL) { return; } self->traceback_data = tb_data; self->traceback_alloc += 3; } mp_uint_t *tb_data = &self->traceback_data[self->traceback_len]; self->traceback_len += 3; tb_data[0] = (mp_uint_t)file; tb_data[1] = (mp_uint_t)line; tb_data[2] = (mp_uint_t)block; } void mp_obj_exception_get_traceback(mp_obj_t self_in, mp_uint_t *n, mp_uint_t **values) { GET_NATIVE_EXCEPTION(self, self_in); if (self->traceback_data == NULL) { *n = 0; *values = NULL; } else { *n = self->traceback_len; *values = self->traceback_data; } } @ 1.1 log @Initial revision @ text @@ 1.1.1.1 log @Import micropython version 1.5.2 into othersrc. Micropython is a python3 implementation that has been optimised for micro-controllers and small embedded systems. It also has a "unix" port. It has an MIT license. This is version 1.5.2 of micropython. MicroPython implements the entire Python 3.4 syntax (including exceptions, "with", "yield from", etc.). The following core datatypes are provided: str (including basic Unicode support), bytes, bytearray, tuple, list, dict, set, frozenset, array.array, collections.namedtuple, classes and instances. Builtin modules include sys, time, and struct. Note that only subset of Python 3.4 functionality implemented for the data types and modules. This is the standard micropython source (version v1.5.2), which has been adapted to use reachover infrastructure. At the present time, libffi (from pkgsrc) is used. Alternative locations for libffi can be set using the PKGSRC_PREFIX definition to make. In the whole scheme of things, micropython is quite small: % size bin/micropython text data bss dec hex filename 393495 1624 2208 397327 6100f bin/micropython % and runs much as expected: % bin/micropython MicroPython v1.5.2 on 2016-01-13; linux version Use Ctrl-D to exit, Ctrl-E for paste mode >>> print("hello world") hello world >>> list(5 * x + y for x in range(10) for y in [4, 2, 1]) [4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46] >>> % python2.7 Python 2.7.10 (default, Oct 17 2015, 17:55:29) [GCC 4.8.5] on netbsd7 Type "help", "copyright", "credits" or "license" for more information. >>> print("hello world") hello world >>> list(5 * x + y for x in range(10) for y in [4, 2, 1]) [4, 2, 1, 9, 7, 6, 14, 12, 11, 19, 17, 16, 24, 22, 21, 29, 27, 26, 34, 32, 31, 39, 37, 36, 44, 42, 41, 49, 47, 46] >>> ^D % This (reachover) version runs all the tests which the gmake version does. % make t cd bin && make t cd /home/agc/local/micropython/bin/../dist/unix/../tests && env MICROPY_MICROPYTHON=/home/agc/local/micropython/bin/micropython ./run-tests pass basics/0prelim.py pass basics/andor.py pass basics/array1.py pass basics/array_add.py pass basics/array_construct.py pass basics/array_construct2.py ... pass unix/ffi_callback.py pass unix/ffi_float.py pass unix/ffi_float2.py 474 tests performed (15812 individual testcases) 474 tests passed 5 tests skipped: cmd_showbc cmd_verbose machine1 machine_mem extra_coverage % The sources are available from github: https://github.com/micropython/micropython micropython release at: https://github.com/micropython/micropython/releases Sources for 1.5.2 taken from: https://github.com/micropython/micropython/archive/v1.5.2.tar.gz Alistair Crooks agc@@netbsd.org Wed Jan 13 17:15:30 PST 2016 @ text @@