04b9147e15
Blanket wide to all .c and .h files. Some files originating from ST are difficult to deal with (license wise) so it was left out of those. Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
403 lines
14 KiB
C
403 lines
14 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include "mpconfig.h"
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#include "nlr.h"
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#include "misc.h"
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#include "qstr.h"
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#include "obj.h"
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#include "runtime0.h"
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#include "runtime.h"
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mp_obj_type_t *mp_obj_get_type(mp_obj_t o_in) {
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if (MP_OBJ_IS_SMALL_INT(o_in)) {
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return (mp_obj_t)&mp_type_int;
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} else if (MP_OBJ_IS_QSTR(o_in)) {
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return (mp_obj_t)&mp_type_str;
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} else {
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mp_obj_base_t *o = o_in;
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return (mp_obj_t)o->type;
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}
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}
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const char *mp_obj_get_type_str(mp_obj_t o_in) {
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return qstr_str(mp_obj_get_type(o_in)->name);
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}
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void printf_wrapper(void *env, const char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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vprintf(fmt, args);
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va_end(args);
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}
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void mp_obj_print_helper(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
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mp_obj_type_t *type = mp_obj_get_type(o_in);
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if (type->print != NULL) {
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type->print(print, env, o_in, kind);
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} else {
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print(env, "<%s>", qstr_str(type->name));
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}
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}
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void mp_obj_print(mp_obj_t o_in, mp_print_kind_t kind) {
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mp_obj_print_helper(printf_wrapper, NULL, o_in, kind);
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}
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// helper function to print an exception with traceback
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void mp_obj_print_exception(mp_obj_t exc) {
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if (mp_obj_is_exception_instance(exc)) {
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machine_uint_t n, *values;
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mp_obj_exception_get_traceback(exc, &n, &values);
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if (n > 0) {
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assert(n % 3 == 0);
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printf("Traceback (most recent call last):\n");
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for (int i = n - 3; i >= 0; i -= 3) {
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#if MICROPY_ENABLE_SOURCE_LINE
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printf(" File \"%s\", line %d", qstr_str(values[i]), (int)values[i + 1]);
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#else
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printf(" File \"%s\"", qstr_str(values[i]));
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#endif
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// the block name can be NULL if it's unknown
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qstr block = values[i + 2];
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if (block == MP_QSTR_NULL) {
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printf("\n");
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} else {
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printf(", in %s\n", qstr_str(block));
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}
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}
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}
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}
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mp_obj_print(exc, PRINT_EXC);
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printf("\n");
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}
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int mp_obj_is_true(mp_obj_t arg) {
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if (arg == mp_const_false) {
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return 0;
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} else if (arg == mp_const_true) {
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return 1;
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} else if (arg == mp_const_none) {
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return 0;
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} else if (MP_OBJ_IS_SMALL_INT(arg)) {
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if (MP_OBJ_SMALL_INT_VALUE(arg) == 0) {
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return 0;
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} else {
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return 1;
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}
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} else {
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mp_obj_type_t *type = mp_obj_get_type(arg);
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if (type->unary_op != NULL) {
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mp_obj_t result = type->unary_op(MP_UNARY_OP_BOOL, arg);
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if (result != MP_OBJ_NOT_SUPPORTED) {
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return result == mp_const_true;
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}
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}
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mp_obj_t len = mp_obj_len_maybe(arg);
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if (len != MP_OBJ_NULL) {
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// obj has a length, truth determined if len != 0
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return len != MP_OBJ_NEW_SMALL_INT(0);
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} else {
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// any other obj is true per Python semantics
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return 1;
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}
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}
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}
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bool mp_obj_is_callable(mp_obj_t o_in) {
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return mp_obj_get_type(o_in)->call != NULL;
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}
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machine_int_t mp_obj_hash(mp_obj_t o_in) {
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if (o_in == mp_const_false) {
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return 0; // needs to hash to same as the integer 0, since False==0
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} else if (o_in == mp_const_true) {
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return 1; // needs to hash to same as the integer 1, since True==1
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} else if (MP_OBJ_IS_SMALL_INT(o_in)) {
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return MP_OBJ_SMALL_INT_VALUE(o_in);
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} else if (MP_OBJ_IS_STR(o_in) || MP_OBJ_IS_TYPE(o_in, &mp_type_bytes)) {
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return mp_obj_str_get_hash(o_in);
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} else if (MP_OBJ_IS_TYPE(o_in, &mp_type_NoneType)) {
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return (machine_int_t)o_in;
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} else if (MP_OBJ_IS_TYPE(o_in, &mp_type_fun_native) || MP_OBJ_IS_TYPE(o_in, &mp_type_fun_bc)) {
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return (machine_int_t)o_in;
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} else if (MP_OBJ_IS_TYPE(o_in, &mp_type_tuple)) {
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return mp_obj_tuple_hash(o_in);
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} else if (MP_OBJ_IS_TYPE(o_in, &mp_type_type)) {
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return (machine_int_t)o_in;
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// TODO hash class and instances
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// TODO delegate to __hash__ method if it exists
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "unhashable type: '%s'", mp_obj_get_type_str(o_in)));
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}
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}
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// this function implements the '==' operator (and so the inverse of '!=')
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// from the python language reference:
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// "The objects need not have the same type. If both are numbers, they are converted
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// to a common type. Otherwise, the == and != operators always consider objects of
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// different types to be unequal."
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// note also that False==0 and True==1 are true expressions
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bool mp_obj_equal(mp_obj_t o1, mp_obj_t o2) {
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if (o1 == o2) {
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return true;
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}
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if (o1 == mp_const_none || o2 == mp_const_none) {
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return false;
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}
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// fast path for small ints
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if (MP_OBJ_IS_SMALL_INT(o1)) {
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if (MP_OBJ_IS_SMALL_INT(o2)) {
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// both SMALL_INT, and not equal if we get here
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return false;
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} else {
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mp_obj_t temp = o2; o2 = o1; o1 = temp;
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// o2 is now the SMALL_INT, o1 is not
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// fall through to generic op
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}
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}
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// fast path for strings
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if (MP_OBJ_IS_STR(o1)) {
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if (MP_OBJ_IS_STR(o2)) {
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// both strings, use special function
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return mp_obj_str_equal(o1, o2);
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} else {
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// a string is never equal to anything else
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return false;
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}
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} else if (MP_OBJ_IS_STR(o2)) {
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// o1 is not a string (else caught above), so the objects are not equal
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return false;
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}
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// generic type, call binary_op(MP_BINARY_OP_EQUAL)
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mp_obj_type_t *type = mp_obj_get_type(o1);
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if (type->binary_op != NULL) {
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mp_obj_t r = type->binary_op(MP_BINARY_OP_EQUAL, o1, o2);
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if (r != MP_OBJ_NOT_SUPPORTED) {
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return r == mp_const_true ? true : false;
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}
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}
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_NotImplementedError,
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"Equality for '%s' and '%s' types not yet implemented", mp_obj_get_type_str(o1), mp_obj_get_type_str(o2)));
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return false;
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}
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machine_int_t mp_obj_get_int(mp_obj_t arg) {
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// This function essentially performs implicit type conversion to int
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// Note that Python does NOT provide implicit type conversion from
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// float to int in the core expression language, try some_list[1.0].
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if (arg == mp_const_false) {
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return 0;
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} else if (arg == mp_const_true) {
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return 1;
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} else if (MP_OBJ_IS_SMALL_INT(arg)) {
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return MP_OBJ_SMALL_INT_VALUE(arg);
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} else if (MP_OBJ_IS_TYPE(arg, &mp_type_int)) {
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return mp_obj_int_get_checked(arg);
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "can't convert %s to int", mp_obj_get_type_str(arg)));
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}
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}
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// returns false if arg is not of integral type
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// returns true and sets *value if it is of integral type
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// can throw OverflowError if arg is of integral type, but doesn't fit in a machine_int_t
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bool mp_obj_get_int_maybe(mp_obj_t arg, machine_int_t *value) {
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if (arg == mp_const_false) {
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*value = 0;
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} else if (arg == mp_const_true) {
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*value = 1;
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} else if (MP_OBJ_IS_SMALL_INT(arg)) {
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*value = MP_OBJ_SMALL_INT_VALUE(arg);
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} else if (MP_OBJ_IS_TYPE(arg, &mp_type_int)) {
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*value = mp_obj_int_get_checked(arg);
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} else {
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return false;
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}
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return true;
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}
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#if MICROPY_ENABLE_FLOAT
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mp_float_t mp_obj_get_float(mp_obj_t arg) {
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if (arg == mp_const_false) {
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return 0;
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} else if (arg == mp_const_true) {
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return 1;
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} else if (MP_OBJ_IS_SMALL_INT(arg)) {
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return MP_OBJ_SMALL_INT_VALUE(arg);
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} else if (MP_OBJ_IS_TYPE(arg, &mp_type_int)) {
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return mp_obj_int_as_float(arg);
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} else if (MP_OBJ_IS_TYPE(arg, &mp_type_float)) {
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return mp_obj_float_get(arg);
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "can't convert %s to float", mp_obj_get_type_str(arg)));
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}
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}
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void mp_obj_get_complex(mp_obj_t arg, mp_float_t *real, mp_float_t *imag) {
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if (arg == mp_const_false) {
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*real = 0;
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*imag = 0;
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} else if (arg == mp_const_true) {
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*real = 1;
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*imag = 0;
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} else if (MP_OBJ_IS_SMALL_INT(arg)) {
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*real = MP_OBJ_SMALL_INT_VALUE(arg);
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*imag = 0;
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} else if (MP_OBJ_IS_TYPE(arg, &mp_type_int)) {
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*real = mp_obj_int_as_float(arg);
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*imag = 0;
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} else if (MP_OBJ_IS_TYPE(arg, &mp_type_float)) {
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*real = mp_obj_float_get(arg);
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*imag = 0;
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} else if (MP_OBJ_IS_TYPE(arg, &mp_type_complex)) {
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mp_obj_complex_get(arg, real, imag);
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "can't convert %s to complex", mp_obj_get_type_str(arg)));
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}
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}
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#endif
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void mp_obj_get_array(mp_obj_t o, uint *len, mp_obj_t **items) {
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if (MP_OBJ_IS_TYPE(o, &mp_type_tuple)) {
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mp_obj_tuple_get(o, len, items);
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} else if (MP_OBJ_IS_TYPE(o, &mp_type_list)) {
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mp_obj_list_get(o, len, items);
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "object '%s' is not a tuple or list", mp_obj_get_type_str(o)));
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}
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}
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void mp_obj_get_array_fixed_n(mp_obj_t o, uint len, mp_obj_t **items) {
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if (MP_OBJ_IS_TYPE(o, &mp_type_tuple) || MP_OBJ_IS_TYPE(o, &mp_type_list)) {
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uint seq_len;
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if (MP_OBJ_IS_TYPE(o, &mp_type_tuple)) {
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mp_obj_tuple_get(o, &seq_len, items);
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} else {
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mp_obj_list_get(o, &seq_len, items);
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}
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if (seq_len != len) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "requested length %d but object has length %d", len, seq_len));
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}
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "object '%s' is not a tuple or list", mp_obj_get_type_str(o)));
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}
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}
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// is_slice determines whether the index is a slice index
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uint mp_get_index(const mp_obj_type_t *type, machine_uint_t len, mp_obj_t index, bool is_slice) {
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machine_int_t i;
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if (MP_OBJ_IS_SMALL_INT(index)) {
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i = MP_OBJ_SMALL_INT_VALUE(index);
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} else if (!mp_obj_get_int_maybe(index, &i)) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "%s indices must be integers, not %s", qstr_str(type->name), mp_obj_get_type_str(index)));
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}
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if (i < 0) {
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i += len;
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}
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if (is_slice) {
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if (i < 0) {
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i = 0;
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} else if (i > len) {
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i = len;
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}
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} else {
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if (i < 0 || i >= len) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_IndexError, "%s index out of range", qstr_str(type->name)));
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}
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}
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return i;
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}
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// may return MP_OBJ_NULL
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mp_obj_t mp_obj_len_maybe(mp_obj_t o_in) {
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if (MP_OBJ_IS_STR(o_in) || MP_OBJ_IS_TYPE(o_in, &mp_type_bytes)) {
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return MP_OBJ_NEW_SMALL_INT((machine_int_t)mp_obj_str_get_len(o_in));
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} else {
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mp_obj_type_t *type = mp_obj_get_type(o_in);
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if (type->unary_op != NULL) {
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return type->unary_op(MP_UNARY_OP_LEN, o_in);
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} else {
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return MP_OBJ_NULL;
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}
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}
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}
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mp_obj_t mp_obj_subscr(mp_obj_t base, mp_obj_t index, mp_obj_t value) {
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mp_obj_type_t *type = mp_obj_get_type(base);
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if (type->subscr != NULL) {
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mp_obj_t ret = type->subscr(base, index, value);
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if (ret != MP_OBJ_NOT_SUPPORTED) {
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return ret;
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}
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// TODO: call base classes here?
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}
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if (value == MP_OBJ_NULL) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object does not support item deletion", mp_obj_get_type_str(base)));
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} else if (value == MP_OBJ_SENTINEL) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object is not subscriptable", mp_obj_get_type_str(base)));
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} else {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "'%s' object does not support item assignment", mp_obj_get_type_str(base)));
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}
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}
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// Return input argument. Useful as .getiter for objects which are
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// their own iterators, etc.
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mp_obj_t mp_identity(mp_obj_t self) {
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return self;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mp_identity_obj, mp_identity);
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bool mp_get_buffer(mp_obj_t obj, mp_buffer_info_t *bufinfo, int flags) {
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mp_obj_type_t *type = mp_obj_get_type(obj);
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if (type->buffer_p.get_buffer == NULL) {
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return false;
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}
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int ret = type->buffer_p.get_buffer(obj, bufinfo, flags);
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if (ret != 0 || bufinfo->buf == NULL) {
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return false;
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}
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return true;
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}
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void mp_get_buffer_raise(mp_obj_t obj, mp_buffer_info_t *bufinfo, int flags) {
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if (!mp_get_buffer(obj, bufinfo, flags)) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "object with buffer protocol required"));
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}
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}
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