leo_grammar/statements/
conditional_statement.rs

1// Copyright (C) 2019-2020 Aleo Systems 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::{
18    ast::Rule,
19    expressions::Expression,
20    statements::{Block, ConditionalNestedOrEndStatement},
21    SpanDef,
22};
23
24use pest::Span;
25use pest_ast::FromPest;
26use serde::Serialize;
27use std::fmt;
28
29#[derive(Clone, Debug, FromPest, PartialEq, Serialize)]
30#[pest_ast(rule(Rule::statement_conditional))]
31pub struct ConditionalStatement<'ast> {
32    pub condition: Expression<'ast>,
33    pub block: Block<'ast>,
34    pub next: Option<ConditionalNestedOrEndStatement<'ast>>,
35    #[pest_ast(outer())]
36    #[serde(with = "SpanDef")]
37    pub span: Span<'ast>,
38}
39
40impl<'ast> fmt::Display for ConditionalStatement<'ast> {
41    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
42        write!(f, "if ({}) {}", self.condition, self.block)?;
43        self.next
44            .as_ref()
45            .map(|n_or_e| write!(f, " {}", n_or_e))
46            .unwrap_or_else(|| write!(f, ""))
47    }
48}
leo_grammar/statements/conditional_statement.rs

leo_grammar/statements/
conditional_statement.rs
