leo_ast/types/
optional.rs

1// Copyright (C) 2019-2025 Provable Inc.
2// This file is part of the Leo library.
3
4// The Leo library is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8
9// The Leo library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License
15// along with the Leo library. If not, see <https://www.gnu.org/licenses/>.
16
17use crate::Type;
18
19use serde::{Deserialize, Serialize};
20use std::fmt;
21
22/// An optional type. For example `u32?` where `inner` refers to `u32`.
23#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
24pub struct OptionalType {
25    pub inner: Box<Type>,
26}
27
28impl fmt::Display for OptionalType {
29    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
30        write!(f, "{}?", self.inner)
31    }
32}
leo_ast/types/optional.rs

leo_ast/types/
optional.rs
