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https://github.com/licsber/micropython.git
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a71c83a1d1
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.
257 lines
8.5 KiB
C
257 lines
8.5 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 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_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_BINARY_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_BINARY_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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nlr_jump(mp_obj_new_exception_msg_varg(MP_QSTR_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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}
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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", qstr_str(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", qstr_str(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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MP_DEFINE_CONST_FUN_OBJ_1(mp_identity_obj, mp_identity);
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