kopia lustrzana https://github.com/micropython/micropython
256 wiersze
8.4 KiB
C
256 wiersze
8.4 KiB
C
#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <assert.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.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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#include "map.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)&int_type;
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} else if (MP_OBJ_IS_QSTR(o_in)) {
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return (mp_obj_t)&str_type;
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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 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>", 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_TYPE(exc, &exception_type)) {
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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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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, in %s\n", qstr_str(values[i]), (int)values[i + 1], qstr_str(values[i + 2]));
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#else
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printf(" File \"%s\", in %s\n", qstr_str(values[i]), qstr_str(values[i + 2]));
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#endif
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}
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}
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}
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mp_obj_print(exc, PRINT_REPR);
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printf("\n");
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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)) {
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return mp_obj_str_get_hash(o_in);
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} else if (MP_OBJ_IS_TYPE(o_in, &none_type)) {
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return (machine_int_t)o_in;
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} else {
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assert(0);
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return 0;
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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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} else if (MP_OBJ_IS_SMALL_INT(o1) || MP_OBJ_IS_SMALL_INT(o2)) {
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if (MP_OBJ_IS_SMALL_INT(o1) && MP_OBJ_IS_SMALL_INT(o2)) {
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return false;
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} else {
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if (MP_OBJ_IS_SMALL_INT(o2)) {
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mp_obj_t temp = o1; o1 = o2; o2 = temp;
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}
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// o1 is the SMALL_INT, o2 is not
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mp_small_int_t val = MP_OBJ_SMALL_INT_VALUE(o1);
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if (o2 == mp_const_false) {
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return val == 0;
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} else if (o2 == mp_const_true) {
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return val == 1;
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} else if (MP_OBJ_IS_TYPE(o2, &int_type)) {
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// If o2 is long int, dispatch to its virtual methods
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mp_obj_base_t *o = o2;
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if (o->type->binary_op != NULL) {
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mp_obj_t r = o->type->binary_op(RT_COMPARE_OP_EQUAL, o2, o1);
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return r == mp_const_true ? true : false;
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}
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}
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return false;
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}
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} else if (MP_OBJ_IS_STR(o1) && MP_OBJ_IS_STR(o2)) {
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return mp_obj_str_equal(o1, o2);
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} else {
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mp_obj_base_t *o = o1;
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if (o->type->binary_op != NULL) {
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mp_obj_t r = o->type->binary_op(RT_COMPARE_OP_EQUAL, o1, o2);
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if (r != MP_OBJ_NULL) {
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return r == mp_const_true ? true : false;
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}
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}
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// TODO: Debugging helper
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printf("Equality for '%s' and '%s' types not yet implemented\n", mp_obj_get_type_str(o1), mp_obj_get_type_str(o2));
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assert(0);
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return false;
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}
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}
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bool mp_obj_less(mp_obj_t o1, mp_obj_t o2) {
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if (MP_OBJ_IS_SMALL_INT(o1) && MP_OBJ_IS_SMALL_INT(o2)) {
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mp_small_int_t i1 = MP_OBJ_SMALL_INT_VALUE(o1);
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mp_small_int_t i2 = MP_OBJ_SMALL_INT_VALUE(o2);
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return i1 < i2;
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} else {
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assert(0);
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return false;
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}
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}
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machine_int_t mp_obj_get_int(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, &int_type)) {
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return mp_obj_int_get_checked(arg);
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} else {
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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_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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#if MICROPY_ENABLE_FLOAT
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machine_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, &float_type)) {
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return mp_obj_float_get(arg);
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} else {
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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_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, &float_type)) {
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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, &complex_type)) {
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mp_obj_complex_get(arg, real, imag);
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} else {
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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_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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mp_obj_t *mp_obj_get_array_fixed_n(mp_obj_t o_in, machine_int_t n) {
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if (MP_OBJ_IS_TYPE(o_in, &tuple_type) || MP_OBJ_IS_TYPE(o_in, &list_type)) {
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uint seq_len;
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mp_obj_t *seq_items;
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if (MP_OBJ_IS_TYPE(o_in, &tuple_type)) {
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mp_obj_tuple_get(o_in, &seq_len, &seq_items);
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} else {
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mp_obj_list_get(o_in, &seq_len, &seq_items);
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}
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if (seq_len != n) {
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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_IndexError, "requested length %d but object has length %d", n, seq_len));
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}
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return seq_items;
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} else {
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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_TypeError, "object '%s' is not a tuple or list", mp_obj_get_type_str(o_in)));
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}
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}
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uint mp_get_index(const mp_obj_type_t *type, machine_uint_t len, mp_obj_t index) {
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// TODO False and True are considered 0 and 1 for indexing purposes
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if (MP_OBJ_IS_SMALL_INT(index)) {
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int i = MP_OBJ_SMALL_INT_VALUE(index);
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if (i < 0) {
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i += len;
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}
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if (i < 0 || i >= len) {
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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_IndexError, "%s index out of range", type->name));
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}
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return i;
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} else {
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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_TypeError, "%s indices must be integers, not %s", type->name, mp_obj_get_type_str(index)));
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}
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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)) {
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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(RT_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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// 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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