serene-rust-implementation/src/types/collections/list.rs

73 lines
2.0 KiB
Rust

/** Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* 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 2 of the License.
*
* 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::ast::Expr;
use crate::builtins::def;
use crate::compiler::Compiler;
use crate::types::collections::core::Seq;
use crate::types::core::{ExprResult, Expression};
#[derive(Debug, Eq, PartialEq, Clone)]
pub struct List {
elements: Vec<Expr>,
}
impl List {
pub fn new_empty() -> List {
List { elements: vec![] }
}
pub fn new(elems: &[Expr]) -> List {
List {
elements: elems.to_vec(),
}
}
pub fn push(&mut self, elem: Expr) {
self.elements.push(elem)
}
// pub fn new(first: T, rest: List<T>) -> List<T> {
// List::Cons(first, Box::new(rest))
// }
}
impl Expression for List {
fn eval() {}
fn code_gen<'ctx>(&self, compiler: &'ctx Compiler) -> ExprResult<'ctx> {
// match &self.car {
// Expr::Sym(s) => def(compiler, self),
// _ => ,
// }
//def(compiler, self);
Err("Not implemented on list".to_string())
}
}
// impl Seq<Expr> for List<T> {
// fn first<'a>(&'a self) -> &'a Expr {
// &self.car
// }
// fn rest<'a>(&'a self) -> Option<&'a List> {
// match &self.cdr {
// Expr::Nil => None,
// Expr::Cons(v) => Some(v),
// _ => panic!("'rest' should not match anything else!"),
// }
// }
// }