c5966128c7
Each built-in exception is now a type, with base type BaseException. C exceptions are created by passing a pointer to the exception type to make an instance of. When raising an exception from the VM, an instance is created automatically if an exception type is raised (as opposed to an exception instance). Exception matching (RT_BINARY_OP_EXCEPTION_MATCH) is now proper. Handling of parse error changed to match new exceptions. mp_const_type renamed to mp_type_type for consistency.
108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
#include <stdlib.h>
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#include <stdint.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 "objint.h"
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// This dispatcher function is expected to be independent of the implementation
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// of long int
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STATIC mp_obj_t int_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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// TODO check n_kw == 0
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switch (n_args) {
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case 0:
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return MP_OBJ_NEW_SMALL_INT(0);
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case 1:
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if (MP_OBJ_IS_STR(args[0])) {
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// a string, parse it
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uint l;
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const char *s = mp_obj_str_get_data(args[0], &l);
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return MP_OBJ_NEW_SMALL_INT(strtonum(s, 0));
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} else {
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return MP_OBJ_NEW_SMALL_INT(mp_obj_get_int(args[0]));
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}
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case 2:
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{
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// should be a string, parse it
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// TODO proper error checking of argument types
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uint l;
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const char *s = mp_obj_str_get_data(args[0], &l);
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return MP_OBJ_NEW_SMALL_INT(strtonum(s, mp_obj_get_int(args[1])));
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}
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default:
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "int takes at most 2 arguments, %d given", n_args));
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}
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}
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#if MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_NONE
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void int_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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if (MP_OBJ_IS_SMALL_INT(self_in)) {
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print(env, "%d", (int)MP_OBJ_SMALL_INT_VALUE(self_in));
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}
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}
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// This is called only for non-SMALL_INT
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mp_obj_t int_unary_op(int op, mp_obj_t o_in) {
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assert(0);
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return mp_const_none;
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}
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// This is called only for non-SMALL_INT
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mp_obj_t int_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
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assert(0);
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return mp_const_none;
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}
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// This is called only with strings whose value doesn't fit in SMALL_INT
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mp_obj_t mp_obj_new_int_from_long_str(const char *s) {
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nlr_jump(mp_obj_new_exception_msg(&mp_type_OverflowError, "long int not supported in this build"));
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return mp_const_none;
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}
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mp_obj_t mp_obj_new_int_from_uint(machine_uint_t value) {
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// SMALL_INT accepts only signed numbers, of one bit less size
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// then word size, which totals 2 bits less for unsigned numbers.
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if ((value & (WORD_MSBIT_HIGH | (WORD_MSBIT_HIGH >> 1))) == 0) {
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return MP_OBJ_NEW_SMALL_INT(value);
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}
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nlr_jump(mp_obj_new_exception_msg(&mp_type_OverflowError, "small int overflow"));
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return mp_const_none;
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}
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mp_obj_t mp_obj_new_int(machine_int_t value) {
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if (MP_OBJ_FITS_SMALL_INT(value)) {
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return MP_OBJ_NEW_SMALL_INT(value);
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}
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nlr_jump(mp_obj_new_exception_msg(&mp_type_OverflowError, "small int overflow"));
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return mp_const_none;
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}
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machine_int_t mp_obj_int_get(mp_obj_t self_in) {
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return MP_OBJ_SMALL_INT_VALUE(self_in);
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}
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machine_int_t mp_obj_int_get_checked(mp_obj_t self_in) {
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return MP_OBJ_SMALL_INT_VALUE(self_in);
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}
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#endif // MICROPY_LONGINT_IMPL == MICROPY_LONGINT_IMPL_NONE
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const mp_obj_type_t int_type = {
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{ &mp_type_type },
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.name = MP_QSTR_int,
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.print = int_print,
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.make_new = int_make_new,
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.unary_op = int_unary_op,
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.binary_op = int_binary_op,
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};
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