location.rs

 1// SPDX-License-Identifier: Apache-2.0 OR MIT
 2
 3use core::cmp::Ordering;
 4
 5/// A line-column pair representing the start or end of a `Span`.
 6///
 7/// This type is semver exempt and not exposed by default.
 8#[cfg_attr(docsrs, doc(cfg(feature = "span-locations")))]
 9#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
10pub struct LineColumn {
11    /// The 1-indexed line in the source file on which the span starts or ends
12    /// (inclusive).
13    pub line: usize,
14    /// The 0-indexed column (in UTF-8 characters) in the source file on which
15    /// the span starts or ends (inclusive).
16    pub column: usize,
17}
18
19impl Ord for LineColumn {
20    fn cmp(&self, other: &Self) -> Ordering {
21        self.line
22            .cmp(&other.line)
23            .then(self.column.cmp(&other.column))
24    }
25}
26
27impl PartialOrd for LineColumn {
28    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
29        Some(self.cmp(other))
30    }
31}