41 lines
1.4 KiB
Rust
41 lines
1.4 KiB
Rust
|
/* relish: versatile lisp shell
|
||
|
|
* Copyright (C) 2021 Aidan Hahn
|
||
|
|
*
|
||
|
|
* This program is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
use crate::append::get_append;
|
||
|
|
use crate::func::{func_declare, FTable, Ast};
|
||
|
|
use crate::segment::Ctr;
|
||
|
|
use crate::str::{get_concat, get_echo};
|
||
|
|
use crate::vars::{get_export, VTable};
|
||
|
|
use std::cell::RefCell;
|
||
|
|
use std::rc::Rc;
|
||
|
|
|
||
|
|
pub fn get_if() -> Function {
|
||
|
|
return Function {
|
||
|
|
name: String::from("if"),
|
||
|
|
loose_syms: false,
|
||
|
|
eval_lazy: true,
|
||
|
|
args: Args::Lazy(-1),
|
||
|
|
function: Operation::Internal(
|
||
|
|
Box::new(|args: Ast, vars: Rc<RefCell<VTable>>, funcs: Rc<RefCell<FTable>>| -> Ctr {
|
||
|
|
// Either 2 long or 3 long.
|
||
|
|
// arg 1 must eval to a bool
|
||
|
|
// then eval arg 2 or 3
|
||
|
|
})
|
||
|
|
),
|
||
|
|
};
|
||
|
|
}
|