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Document that Spans are semi-open #424

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Document that Spans are semi-open #424

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6 changes: 6 additions & 0 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -372,6 +372,9 @@ impl Debug for SourceFile {
}

/// A region of source code, along with macro expansion information.
///
/// A Span is semi-open: the start location is included in the span and
/// the end is excluded.
#[derive(Copy, Clone)]
pub struct Span {
inner: imp::Span,
Expand Down Expand Up @@ -478,6 +481,9 @@ impl Span {

/// Get the ending line/column in the source file for this span.
///
/// The ending line/column is exclusive, pointing to the first character
/// after the span.
///
/// This method requires the `"span-locations"` feature to be enabled.
///
/// When executing in a procedural macro context, the returned line/column
Expand Down