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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2023-01-26 07:53:24 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-26 07:53:24 +0100 |
| commit | d667105681726fe84ef6256b8a75b2e770bed3e6 (patch) | |
| tree | 87b00669fd6acf4cb99e95fe4944ed81bf0aa5dc | |
| parent | 35a8d6fea4ae1770b1c819f7686be7b2355981c1 (diff) | |
| parent | 25f0147db2ca7538ab9324d63bc1e0060f67f9c8 (diff) | |
| download | rust-d667105681726fe84ef6256b8a75b2e770bed3e6.tar.gz rust-d667105681726fe84ef6256b8a75b2e770bed3e6.zip | |
Rollup merge of #106946 - dtolnay:hashlinecolumn, r=m-ou-se
implement Hash for proc_macro::LineColumn For use in `HashMap<LineColumn, TokenTree>` or `HashMap<LineColumn, Comment>`, for example. [Here is an example of one case complicated by the absence of this impl.](https://github.com/andrewbaxter/genemichaels/blob/71bc45e417c3f9dae09f890f1ec4630e758e5c70/src/comments.rs#L25-L34) Tracking issue: https://github.com/rust-lang/rust/issues/54725
| -rw-r--r-- | library/proc_macro/src/lib.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/library/proc_macro/src/lib.rs b/library/proc_macro/src/lib.rs index f0e4f5d8a80..1699f0d55bc 100644 --- a/library/proc_macro/src/lib.rs +++ b/library/proc_macro/src/lib.rs @@ -581,7 +581,7 @@ impl fmt::Debug for Span { /// A line-column pair representing the start or end of a `Span`. #[unstable(feature = "proc_macro_span", issue = "54725")] -#[derive(Copy, Clone, Debug, PartialEq, Eq)] +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] pub struct LineColumn { /// The 1-indexed line in the source file on which the span starts or ends (inclusive). #[unstable(feature = "proc_macro_span", issue = "54725")] |