51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
|
#include "picrin.h"
|
||
|
|
#include "picrin/dict.h"
|
||
|
|
|
||
|
|
struct pic_dict *
|
||
|
|
pic_attr(pic_state *pic, pic_value obj)
|
||
|
|
{
|
||
|
|
xh_entry *e;
|
||
|
|
|
||
|
|
if (pic_vtype(obj) != PIC_VTYPE_HEAP) {
|
||
|
|
pic_errorf(pic, "attribute: expected heap object, but got immediate value ~s", obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
e = xh_get_ptr(&pic->attrs, pic_ptr(obj));
|
||
|
|
if (e == NULL) {
|
||
|
|
struct pic_dict *dict = pic_make_dict(pic);
|
||
|
|
|
||
|
|
e = xh_put_ptr(&pic->attrs, pic_ptr(obj), &dict);
|
||
|
|
|
||
|
|
assert(dict == xh_val(e, struct pic_dict *));
|
||
|
|
}
|
||
|
|
return xh_val(e, struct pic_dict *);
|
||
|
|
}
|
||
|
|
|
||
|
|
pic_value
|
||
|
|
pic_attr_ref(pic_state *pic, pic_value obj, const char *key)
|
||
|
|
{
|
||
|
|
return pic_dict_ref(pic, pic_attr(pic, obj), pic_sym_value(pic_intern_cstr(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_sym_value(pic_intern_cstr(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);
|
||
|
|
}
|