bjoernager/rust
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Add Span::{line, column}

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This commit is contained in:
Jacob Pratt 2023-05-14 18:30:18 -04:00
parent 87ec0738ab
commit a1cd8c3a28
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4 changed files with 38 additions and 0 deletions
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2
library/proc_macro/src/bridge/mod.rs
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@ -97,6 +97,8 @@ macro_rules! with_api {
fn byte_range($self: $S::Span) -> Range<usize>;
fn start($self: $S::Span) -> $S::Span;
fn end($self: $S::Span) -> $S::Span;
fn line($self: $S::Span) -> usize;
fn column($self: $S::Span) -> usize;
fn join($self: $S::Span, other: $S::Span) -> Option<$S::Span>;
fn subspan($self: $S::Span, start: Bound<usize>, end: Bound<usize>) -> Option<$S::Span>;
fn resolved_at($self: $S::Span, at: $S::Span) -> $S::Span;

16
library/proc_macro/src/lib.rs
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@ -505,6 +505,22 @@ impl Span {
Span(self.0.end())
}
/// The one-indexed line of the source file where the span starts.
///
/// To obtain the line of the span's end, use `span.end().line()`.
#[unstable(feature = "proc_macro_span", issue = "54725")]
pub fn line(&self) -> usize {
self.0.line()
}
/// The one-indexed column of the source file where the span starts.
///
/// To obtain the column of the span's end, use `span.end().column()`.
#[unstable(feature = "proc_macro_span", issue = "54725")]
pub fn column(&self) -> usize {
self.0.column()
}
/// Creates a new span encompassing `self` and `other`.
///
/// Returns `None` if `self` and `other` are from different files.