proc_macro2/
location.rs

1use core::cmp::Ordering;
2
3/// A line-column pair representing the start or end of a `Span`.
4///
5/// This type is semver exempt and not exposed by default.
6#[cfg_attr(docsrs, doc(cfg(feature = "span-locations")))]
7#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
8pub struct LineColumn {
9    /// The 1-indexed line in the source file on which the span starts or ends
10    /// (inclusive).
11    pub line: usize,
12    /// The 0-indexed column (in UTF-8 characters) in the source file on which
13    /// the span starts or ends (inclusive).
14    pub column: usize,
15}
16
17impl Ord for LineColumn {
18    fn cmp(&self, other: &Self) -> Ordering {
19        self.line
20            .cmp(&other.line)
21            .then(self.column.cmp(&other.column))
22    }
23}
24
25impl PartialOrd for LineColumn {
26    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
27        Some(self.cmp(other))
28    }
29}