1 use 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(doc_cfg, doc(cfg(feature = "span-locations")))] 7 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] 8 pub 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 17 impl Ord for LineColumn { cmp(&self, other: &Self) -> Ordering18 fn cmp(&self, other: &Self) -> Ordering { 19 self.line 20 .cmp(&other.line) 21 .then(self.column.cmp(&other.column)) 22 } 23 } 24 25 impl PartialOrd for LineColumn { partial_cmp(&self, other: &Self) -> Option<Ordering>26 fn partial_cmp(&self, other: &Self) -> Option<Ordering> { 27 Some(self.cmp(other)) 28 } 29 } 30