50 lines
1.5 KiB
Rust
50 lines
1.5 KiB
Rust
/** Serene --- Yet an other Lisp
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*
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* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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use crate::ast::{Expr, PossibleExpr};
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use crate::errors::err;
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use crate::reader::read_string;
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use crate::runtime::RT;
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use crate::scope::Scope;
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fn eval_expr(rt: &RT, scope: &Scope, expr: Expr) -> PossibleExpr {
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Ok(expr)
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}
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pub fn eval(rt: &RT, exprs: Vec<Expr>) -> PossibleExpr {
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match exprs.last() {
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Some(e) => Ok(e.clone()),
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_ => Err(err("NotImplemented".to_string())),
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}
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}
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pub fn read_eval_print(rt: &RT, input: &str) {
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match read_string(input) {
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Ok(exprs) => {
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if rt.is_debug() {
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println!("Read Result: \n{:?}\n", exprs);
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}
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let result_expr = eval(rt, exprs);
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if rt.is_debug() {
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println!("Eval Result: \n{:?}\n", result_expr);
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}
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}
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Err(e) => println!("Error: {}", e),
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}
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}
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