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#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_type_type },
.name = MP_QSTR_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;
}
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