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/* Copyright (C) 2025 Aryadev Chavali
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the Unlicense for details.
* You may distribute and modify this code under the terms of the Unlicense,
* which you should have received a copy of along with this program. If not,
* please go to <https://unlicense.org/>.
* Created: 2025-08-20
* Description: Lisp constructors/destructors
*/
#include <malloc.h>
#include "./alisp.h"
lisp_t *make_int(i64 i)
{
return tag_int(i);
}
lisp_t *cons(sys_t *sys, lisp_t *car, lisp_t *cdr)
{
cons_t *cons = calloc(1, sizeof(*cons));
cons->car = car;
cons->cdr = cdr;
lisp_t *lcons = tag_cons(cons);
sys_register(sys, lcons);
return lcons;
}
lisp_t *make_vec(sys_t *sys, u64 capacity)
{
vec_t *vec = calloc(1, sizeof(*vec));
vec_init(vec, capacity);
lisp_t *ptr = tag_vec(vec);
sys_register(sys, ptr);
return ptr;
}
lisp_t *intern(sys_t *sys, sv_t sv)
{
char *str = sym_table_find(&sys->symtable, sv);
return tag_sym(str);
}
lisp_t *car(lisp_t *lsp)
{
if (!IS_TAG(lsp, CONS))
return NIL;
else
return CAR(lsp);
}
lisp_t *cdr(lisp_t *lsp)
{
if (!IS_TAG(lsp, CONS))
return NIL;
else
return CDR(lsp);
}
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