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https://github.com/licsber/micropython.git
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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.
115 lines
3.5 KiB
C
115 lines
3.5 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 "runtime0.h"
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#if MICROPY_ENABLE_FLOAT
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typedef struct _mp_obj_float_t {
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mp_obj_base_t base;
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mp_float_t value;
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} mp_obj_float_t;
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mp_obj_t mp_obj_new_float(mp_float_t value);
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STATIC void float_print(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_float_t *o = o_in;
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print(env, "%.8g", (double) o->value);
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}
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STATIC mp_obj_t float_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_float(0);
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case 1:
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// TODO allow string as arg and parse it
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if (MP_OBJ_IS_TYPE(args[0], &float_type)) {
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return args[0];
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} else {
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return mp_obj_new_float(mp_obj_get_float(args[0]));
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}
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default:
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "float takes at most 1 argument, %d given", n_args));
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}
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}
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STATIC mp_obj_t float_unary_op(int op, mp_obj_t o_in) {
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mp_obj_float_t *o = o_in;
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switch (op) {
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case RT_UNARY_OP_BOOL: return MP_BOOL(o->value != 0);
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case RT_UNARY_OP_POSITIVE: return o_in;
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case RT_UNARY_OP_NEGATIVE: return mp_obj_new_float(-o->value);
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default: return NULL; // op not supported
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}
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}
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STATIC mp_obj_t float_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
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mp_obj_float_t *lhs = lhs_in;
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if (MP_OBJ_IS_TYPE(rhs_in, &complex_type)) {
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return mp_obj_complex_binary_op(op, lhs->value, 0, rhs_in);
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} else {
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return mp_obj_float_binary_op(op, lhs->value, rhs_in);
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}
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}
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const mp_obj_type_t float_type = {
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{ &mp_type_type },
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.name = MP_QSTR_float,
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.print = float_print,
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.make_new = float_make_new,
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.unary_op = float_unary_op,
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.binary_op = float_binary_op,
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};
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mp_obj_t mp_obj_new_float(mp_float_t value) {
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mp_obj_float_t *o = m_new(mp_obj_float_t, 1);
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o->base.type = &float_type;
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o->value = value;
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return (mp_obj_t)o;
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}
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mp_float_t mp_obj_float_get(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &float_type));
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mp_obj_float_t *self = self_in;
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return self->value;
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}
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mp_obj_t mp_obj_float_binary_op(int op, mp_float_t lhs_val, mp_obj_t rhs_in) {
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mp_float_t rhs_val = mp_obj_get_float(rhs_in); // can be any type, this function will convert to float (if possible)
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switch (op) {
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case RT_BINARY_OP_ADD:
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case RT_BINARY_OP_INPLACE_ADD: lhs_val += rhs_val; break;
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case RT_BINARY_OP_SUBTRACT:
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case RT_BINARY_OP_INPLACE_SUBTRACT: lhs_val -= rhs_val; break;
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case RT_BINARY_OP_MULTIPLY:
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case RT_BINARY_OP_INPLACE_MULTIPLY: lhs_val *= rhs_val; break;
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/* TODO floor(?) the value
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case RT_BINARY_OP_FLOOR_DIVIDE:
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case RT_BINARY_OP_INPLACE_FLOOR_DIVIDE: val = lhs_val / rhs_val; break;
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*/
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case RT_BINARY_OP_TRUE_DIVIDE:
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case RT_BINARY_OP_INPLACE_TRUE_DIVIDE: lhs_val /= rhs_val; break;
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case RT_BINARY_OP_LESS: return MP_BOOL(lhs_val < rhs_val);
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case RT_BINARY_OP_MORE: return MP_BOOL(lhs_val > rhs_val);
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case RT_BINARY_OP_LESS_EQUAL: return MP_BOOL(lhs_val <= rhs_val);
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case RT_BINARY_OP_MORE_EQUAL: return MP_BOOL(lhs_val >= rhs_val);
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return NULL; // op not supported
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}
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return mp_obj_new_float(lhs_val);
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}
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#endif
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