leo_ast/statement/
const_.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::{Expression, Identifier, Node, NodeID, Statement, Type};
18use leo_span::Span;
19
20use serde::{Deserialize, Serialize};
21use std::fmt;
22
23/// A constant declaration statement.
24#[derive(Clone, Default, PartialEq, Eq, Serialize, Deserialize, Debug)]
25pub struct ConstDeclaration {
26    /// The place to assign to. As opposed to `DefinitionStatement`, this can only be an identifier
27    pub place: Identifier,
28    /// The type of the binding, if specified, or inferred otherwise.
29    pub type_: Type,
30    /// An initializer value for the binding.
31    pub value: Expression,
32    /// The span excluding the semicolon.
33    pub span: Span,
34    /// The ID of the node.
35    pub id: NodeID,
36}
37
38impl fmt::Display for ConstDeclaration {
39    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
40        write!(f, "const {}: {} = {}", self.place, self.type_, self.value)
41    }
42}
43
44impl From<ConstDeclaration> for Statement {
45    fn from(value: ConstDeclaration) -> Self {
46        Statement::Const(value)
47    }
48}
49
50crate::simple_node_impl!(ConstDeclaration);
leo_ast/statement/const_.rs

leo_ast/statement/
const_.rs
