78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "nlr.h"
|
|
#include "misc.h"
|
|
#include "mpconfig.h"
|
|
#include "qstr.h"
|
|
#include "obj.h"
|
|
#include "runtime.h"
|
|
#include "map.h"
|
|
|
|
typedef struct _mp_obj_module_t {
|
|
mp_obj_base_t base;
|
|
qstr name;
|
|
mp_map_t *globals;
|
|
} mp_obj_module_t;
|
|
|
|
STATIC void module_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
|
|
mp_obj_module_t *self = self_in;
|
|
print(env, "<module '%s' from '-unknown-file-'>", qstr_str(self->name));
|
|
}
|
|
|
|
STATIC void module_load_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
|
|
mp_obj_module_t *self = self_in;
|
|
mp_map_elem_t *elem = mp_map_lookup(self->globals, MP_OBJ_NEW_QSTR(attr), MP_MAP_LOOKUP);
|
|
if (elem != NULL) {
|
|
dest[0] = elem->value;
|
|
}
|
|
}
|
|
|
|
STATIC bool module_store_attr(mp_obj_t self_in, qstr attr, mp_obj_t value) {
|
|
mp_obj_module_t *self = self_in;
|
|
// TODO CPython allows STORE_ATTR to a module, but is this the correct implementation?
|
|
mp_map_lookup(self->globals, MP_OBJ_NEW_QSTR(attr), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = value;
|
|
return true;
|
|
}
|
|
|
|
const mp_obj_type_t module_type = {
|
|
{ &mp_const_type },
|
|
"module",
|
|
.print = module_print,
|
|
.load_attr = module_load_attr,
|
|
.store_attr = module_store_attr,
|
|
};
|
|
|
|
mp_obj_t mp_obj_new_module(qstr module_name) {
|
|
mp_map_elem_t *el = mp_map_lookup(rt_loaded_modules_get(), MP_OBJ_NEW_QSTR(module_name), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND);
|
|
// We could error out if module already exists, but let C extensions
|
|
// add new members to existing modules.
|
|
if (el->value != MP_OBJ_NULL) {
|
|
return el->value;
|
|
}
|
|
|
|
mp_obj_module_t *o = m_new_obj(mp_obj_module_t);
|
|
o->base.type = &module_type;
|
|
o->name = module_name;
|
|
o->globals = mp_map_new(1);
|
|
el->value = o;
|
|
mp_map_lookup(o->globals, MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_MAP_LOOKUP_ADD_IF_NOT_FOUND)->value = MP_OBJ_NEW_QSTR(module_name);
|
|
return o;
|
|
}
|
|
|
|
mp_obj_t mp_obj_module_get(qstr module_name) {
|
|
mp_map_elem_t *el = mp_map_lookup(rt_loaded_modules_get(), MP_OBJ_NEW_QSTR(module_name), MP_MAP_LOOKUP);
|
|
if (el == NULL) {
|
|
return MP_OBJ_NULL;
|
|
}
|
|
return el->value;
|
|
}
|
|
|
|
mp_map_t *mp_obj_module_get_globals(mp_obj_t self_in) {
|
|
assert(MP_OBJ_IS_TYPE(self_in, &module_type));
|
|
mp_obj_module_t *self = self_in;
|
|
return self->globals;
|
|
}
|