teo_parser/ast/
span.rs

1use std::fmt::{Display, Formatter};
2use serde::Serialize;
3
4#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Hash)]
5pub struct Span {
6    pub start: usize,
7    pub end: usize,
8    pub start_position: (usize, usize),
9    pub end_position: (usize, usize),
10}
11
12impl Default for Span {
13
14    fn default() -> Self {
15        Self {
16            start: 0,
17            end: 0,
18            start_position: (1, 1),
19            end_position: (1, 1),
20        }
21    }
22}
23
24impl Span {
25
26    pub fn contains(&self, position: usize) -> bool {
27        position >= self.start && position <= self.end
28    }
29
30    pub fn contains_line_col(&self, line_col: (usize, usize)) -> bool {
31        line_col.0 >= self.start_position.0 &&
32            line_col.0 <= self.end_position.0 &&
33            if line_col.0 == self.start_position.0 { line_col.1 >= self.start_position.1 } else { true } &&
34            if line_col.0 == self.end_position.0 { line_col.1 <= self.end_position.1 } else { true }
35    }
36
37    pub fn overlaps(&self, other: Span) -> bool {
38        self.contains(other.start) || self.contains(other.end)
39    }
40
41    pub fn merge(&self, other: &Span) -> Span {
42        Span {
43            start: if self.start < other.start { self.start } else { other.start },
44            end: if self.end < other.end { other.end } else { self.end },
45            start_position: if self.start < other.start { self.start_position } else { other.start_position },
46            end_position: if self.end < other.end { other.end_position } else { self.end_position },
47        }
48    }
49}
50
51impl Display for Span {
52
53    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
54        f.write_str(&format!(
55            "{}:{} - {}:{}",
56            self.start_position.0,
57            self.start_position.1,
58            self.end_position.0,
59            self.end_position.1
60        ))
61    }
62}
teo_parser/ast/span.rs

teo_parser/ast/
span.rs
