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Impl Ord for proc_macro::LineColumn

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David Tolnay 2020-05-21 17:05:13 -07:00
parent 9310e3bd4f
commit e9fed696b5
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1 changed files with 15 additions and 0 deletions
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15
src/libproc_macro/lib.rs
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@ -39,6 +39,7 @@ mod diagnostic;
#[unstable(feature = "proc_macro_diagnostic", issue = "54140")]
pub use diagnostic::{Diagnostic, Level, MultiSpan};
use std::cmp::Ordering;
use std::ops::{Bound, RangeBounds};
use std::path::PathBuf;
use std::str::FromStr;
@ -420,6 +421,20 @@ impl !Send for LineColumn {}
#[unstable(feature = "proc_macro_span", issue = "54725")]
impl !Sync for LineColumn {}
#[unstable(feature = "proc_macro_span", issue = "54725")]
impl Ord for LineColumn {
fn cmp(&self, other: &Self) -> Ordering {
self.line.cmp(&other.line).then(self.column.cmp(&other.column))
}
}
#[unstable(feature = "proc_macro_span", issue = "54725")]
impl PartialOrd for LineColumn {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
Some(self.cmp(other))
}
}
/// The source file of a given `Span`.
#[unstable(feature = "proc_macro_span", issue = "54725")]
#[derive(Clone)]