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 "mpqstr.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", 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_1_arg(MP_QSTR_TypeError, "float takes at most 1 argument, %d given", (void*)(machine_int_t)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_NOT: if (o->value != 0) { return mp_const_true;} else { return mp_const_false; }
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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_const_type },
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"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_COMPARE_OP_LESS: return MP_BOOL(lhs_val < rhs_val);
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case RT_COMPARE_OP_MORE: return MP_BOOL(lhs_val > rhs_val);
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case RT_COMPARE_OP_LESS_EQUAL: return MP_BOOL(lhs_val <= rhs_val);
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case RT_COMPARE_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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