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#include <lcq/pit/runtime/value/func.h>
bool pit_value_is_func(pit_runtime *rt, pit_value a) {
return pit_value_is_ref_heavy_sort(rt, a, PIT_VALUE_HEAVY_SORT_FUNC);
}
bool pit_value_is_nativefunc(pit_runtime *rt, pit_value a) {
return pit_value_is_ref_heavy_sort(rt, a, PIT_VALUE_HEAVY_SORT_NATIVEFUNC);
}
pit_value pit_value_func_lambda(pit_runtime *rt, pit_value args, pit_value freevars, pit_value compiled) {
pit_value ret = pit_value_ref_heavy_new(rt);
pit_value_heavy *h = pit_value_ref_deref(rt, pit_value_as_ref(rt, ret));
if (!h) { pit_error(rt, "failed to create new heavy value for lambda"); return PIT_NIL; }
pit_value env = PIT_NIL;
while (freevars != PIT_NIL) {
pit_value sym = pit_value_cons_car(rt, freevars);
pit_value cell = pit_symtab_get_value_cell(rt, sym);
env = pit_value_cons(rt, pit_value_cons(rt, sym, cell), env);
freevars = pit_value_cons_cdr(rt, freevars);
}
h->hsort = PIT_VALUE_HEAVY_SORT_FUNC;
pit_value arg_cells = PIT_NIL;
pit_value arg_rest_nm = PIT_NIL;
pit_value separator = pit_symtab_intern_cstr(rt, "&");
while (args != PIT_NIL) {
pit_value nm = pit_value_cons_car(rt, args);
if (pit_value_eq(nm, separator)) {
pit_value next_nm = pit_value_cons_car(rt, pit_value_cons_cdr(rt, args));
if (next_nm == PIT_NIL) { pit_error(rt, "invalid & in lambda list"); return PIT_NIL; }
arg_rest_nm = next_nm;
arg_cells = pit_value_cons(rt, next_nm, arg_cells);
break;
} else {
arg_cells = pit_value_cons(rt, nm, arg_cells);
args = pit_value_cons_cdr(rt, args);
}
}
arg_cells = pit_value_list_reverse(rt, arg_cells);
pit_value closure[4] = {env, arg_cells, arg_rest_nm, compiled};
h->in.func.nm = PIT_NIL;
h->in.func.closure = pit_value_array_from_buf(rt, closure, 4);
return ret;
}
pit_value pit_value_nativefunc_new_with_data(pit_runtime *rt, pit_nativefunc f, void *data) {
pit_value ret = pit_value_ref_heavy_new(rt);
pit_value_heavy *h = pit_value_ref_deref(rt, pit_value_as_ref(rt, ret));
if (!h) { pit_error(rt, "failed to create new heavy value for nativefunc"); return PIT_NIL; }
h->hsort = PIT_VALUE_HEAVY_SORT_NATIVEFUNC;
h->in.nativefunc.f = f;
h->in.nativefunc.data = data;
return ret;
}
pit_value pit_value_nativefunc_new(pit_runtime *rt, pit_nativefunc f) {
return pit_value_nativefunc_new_with_data(rt, f, NULL);
}
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