49 lines
1.3 KiB
Rust
49 lines
1.3 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, Expression, PossibleExpr};
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use crate::runtime::RT;
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use crate::scope::Scope;
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#[derive(Debug, Clone)]
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pub struct Symbol {
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pub name: String,
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}
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impl PartialEq for Symbol {
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fn eq(&self, other: &Self) -> bool {
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self.name == other.name
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}
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}
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impl Eq for Symbol {}
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impl Expression for Symbol {
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fn eval(&self, rt: &RT, scope: &Scope) -> PossibleExpr {
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Ok(Expr::Sym(self.clone()))
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}
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}
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impl Symbol {
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pub fn new(name: String) -> Self {
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Symbol { name }
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}
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pub fn is_def(&self) -> bool {
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self.name == "def"
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}
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}
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