leo_ast/expressions/
cast.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 super::*;
18
19use crate::Type;
20
21/// A cast expression, e.g. `42u8 as u16`.
22#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
23pub struct CastExpression {
24    /// The expression to be casted, e.g.`42u8` in `42u8 as u16`.
25    pub expression: Expression,
26    /// The type to be casted to, e.g. `u16` in `42u8 as u16`.
27    pub type_: Type,
28    /// Span of the entire cast `42u8 as u16`.
29    pub span: Span,
30    /// The ID of the node.
31    pub id: NodeID,
32}
33
34impl fmt::Display for CastExpression {
35    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
36        if self.expression.precedence() < 12 {
37            write!(f, "({})", self.expression)?;
38        } else {
39            write!(f, "{}", self.expression)?;
40        }
41        write!(f, " as {}", self.type_)
42    }
43}
44
45impl From<CastExpression> for Expression {
46    fn from(value: CastExpression) -> Self {
47        Expression::Cast(Box::new(value))
48    }
49}
50
51crate::simple_node_impl!(CastExpression);
leo_ast/expressions/cast.rs

leo_ast/expressions/
cast.rs
