rink_core/ast/
query.rs

1// This Source Code Form is subject to the terms of the Mozilla Public
2// License, v. 2.0. If a copy of the MPL was not distributed with this
3// file, You can obtain one at https://mozilla.org/MPL/2.0/.
4
5use super::*;
6use serde_derive::Serialize;
7
8#[derive(Debug, Clone, Serialize)]
9pub enum Conversion {
10    None,
11    Expr(Expr),
12    Degree(Degree),
13    List(Vec<String>),
14    Offset(i64),
15    #[serde(skip)]
16    Timezone(Tz),
17}
18
19#[derive(Debug, Clone, Serialize)]
20#[serde(rename_all = "camelCase")]
21#[serde(tag = "type", content = "value")]
22pub enum Query {
23    Expr(Expr),
24    Convert(Expr, Conversion, Option<u8>, Digits),
25    Factorize(Expr),
26    UnitsFor(Expr),
27    Search(String),
28    Error(String),
29}
30
31impl fmt::Display for Conversion {
32    fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
33        match *self {
34            Conversion::None => write!(fmt, "nothing"),
35            Conversion::Expr(ref expr) => write!(fmt, "{}", expr),
36            Conversion::Degree(ref deg) => write!(fmt, "{}", deg),
37            Conversion::List(ref list) => {
38                let list = list
39                    .iter()
40                    .map(|x| x.to_string())
41                    .collect::<Vec<_>>()
42                    .join(", ");
43                write!(fmt, "{}", list)
44            }
45            Conversion::Offset(off) => write!(fmt, "{:02}:{:02}", off / 3600, (off / 60) % 60),
46            Conversion::Timezone(ref tz) => write!(fmt, "{:?}", tz),
47        }
48    }
49}
50
51#[cfg(test)]
52mod tests {
53    use super::Conversion;
54    use crate::ast::{Degree, Expr};
55    use chrono_tz::Tz;
56
57    #[test]
58    fn conversion_display() {
59        assert_eq!(Conversion::None.to_string(), "nothing");
60        assert_eq!(
61            Conversion::Expr(Expr::new_unit("a".to_owned())).to_string(),
62            "a"
63        );
64        assert_eq!(Conversion::Degree(Degree::Celsius).to_string(), "°C");
65        assert_eq!(
66            Conversion::List(vec!["a".to_owned(), "b".to_owned()]).to_string(),
67            "a, b"
68        );
69        assert_eq!(Conversion::Offset(3600 * 7).to_string(), "07:00");
70        assert_eq!(
71            Conversion::Timezone(Tz::US__Pacific).to_string(),
72            "US/Pacific"
73        );
74    }
75}
rink_core/ast/query.rs

rink_core/ast/
query.rs
