49 lines
1012 B
C
49 lines
1012 B
C
#include "picrin.h"
|
|
|
|
struct pic_dict *
|
|
pic_attr(pic_state *pic, pic_value obj)
|
|
{
|
|
struct pic_dict *dict;
|
|
|
|
if (! pic_obj_p(obj)) {
|
|
pic_errorf(pic, "attribute: expected heap object, but got immediate value ~s", obj);
|
|
}
|
|
|
|
if (! pic_reg_has(pic, pic->attrs, pic_ptr(obj))) {
|
|
dict = pic_make_dict(pic);
|
|
|
|
pic_reg_set(pic, pic->attrs, pic_ptr(obj), pic_obj_value(dict));
|
|
|
|
return dict;
|
|
}
|
|
return pic_dict_ptr(pic_reg_ref(pic, pic->attrs, pic_ptr(obj)));
|
|
}
|
|
|
|
pic_value
|
|
pic_attr_ref(pic_state *pic, pic_value obj, const char *key)
|
|
{
|
|
return pic_dict_ref(pic, pic_attr(pic, obj), pic_intern(pic, key));
|
|
}
|
|
|
|
void
|
|
pic_attr_set(pic_state *pic, pic_value obj, const char *key, pic_value v)
|
|
{
|
|
pic_dict_set(pic, pic_attr(pic, obj), pic_intern(pic, key), v);
|
|
}
|
|
|
|
static pic_value
|
|
pic_attr_attribute(pic_state *pic)
|
|
{
|
|
pic_value obj;
|
|
|
|
pic_get_args(pic, "o", &obj);
|
|
|
|
return pic_obj_value(pic_attr(pic, obj));
|
|
}
|
|
|
|
void
|
|
pic_init_attr(pic_state *pic)
|
|
{
|
|
pic_defun(pic, "attribute", pic_attr_attribute);
|
|
}
|