picrin/extlib/benz/record.c

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/**
* See Copyright Notice in picrin.h
*/
#include "picrin.h"
#include "picrin/record.h"
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#include "picrin/dict.h"
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struct pic_record *
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pic_make_record(pic_state *pic, pic_value rectype)
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{
struct pic_record *rec;
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struct pic_dict *data;
data = pic_make_dict(pic);
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rec = (struct pic_record *)pic_obj_alloc(pic, sizeof(struct pic_record), PIC_TT_RECORD);
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rec->data = data;
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pic_record_set(pic, rec, pic_intern_cstr(pic, "@@type"), rectype);
return rec;
}
pic_value
pic_record_type(pic_state *pic, struct pic_record *rec)
{
return pic_record_ref(pic, rec, pic_intern_cstr(pic, "@@type"));
}
pic_value
pic_record_ref(pic_state *pic, struct pic_record *rec, pic_sym slot)
{
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if (! pic_dict_has(pic, rec->data, slot)) {
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pic_errorf(pic, "slot named ~s is not found for record: ~s", pic_obj_value(slot), rec);
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}
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return pic_dict_ref(pic, rec->data, slot);
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}
void
pic_record_set(pic_state *pic, struct pic_record *rec, pic_sym slot, pic_value val)
{
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pic_dict_set(pic, rec->data, slot, val);
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}
static pic_value
pic_record_make_record(pic_state *pic)
{
struct pic_record * rec;
pic_value rectype;
pic_get_args(pic, "o", &rectype);
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rec = pic_make_record(pic, rectype);
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return pic_obj_value(rec);
}
static pic_value
pic_record_record_p(pic_state *pic)
{
pic_value rec;
pic_get_args(pic, "o", &rec);
return pic_bool_value(pic_record_p(rec));
}
static pic_value
pic_record_record_type(pic_state *pic)
{
struct pic_record *rec;
pic_get_args(pic, "r", &rec);
return pic_record_type(pic, rec);
}
static pic_value
pic_record_record_ref(pic_state *pic)
{
struct pic_record *rec;
pic_sym slot;
pic_get_args(pic, "rm", &rec, &slot);
return pic_record_ref(pic, rec, slot);
}
static pic_value
pic_record_record_set(pic_state *pic)
{
struct pic_record *rec;
pic_sym slot;
pic_value val;
pic_get_args(pic, "rmo", &rec, &slot, &val);
pic_record_set(pic, rec, slot, val);
return pic_none_value();
}
void
pic_init_record(pic_state *pic)
{
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pic_defun(pic, "make-record", pic_record_make_record);
pic_defun(pic, "record?", pic_record_record_p);
pic_defun(pic, "record-type", pic_record_record_type);
pic_defun(pic, "record-ref", pic_record_record_ref);
pic_defun(pic, "record-set!", pic_record_record_set);
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}