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feat(span): add contains_inclusive method (#4491)

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Part of #4445, broken into a separate PR.
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DonIsaac 2024-07-27 01:05:08 +00:00
parent 2e01a45b2b
commit e2735ca2c5
1 changed files with 39 additions and 0 deletions
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39
crates/oxc_span/src/span.rs
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@ -132,6 +132,30 @@ impl Span {
self.start == SPAN.start && self.end == SPAN.end
}
/// Check if this [`Span`] contains another [`Span`].
///
/// [`Span`]s that start & end at the same position as this [`Span`] are
/// considered contained.
///
/// # Examples
///
/// ```rust
/// # use oxc_span::Span;
/// let span = Span::new(5, 10);
///
/// assert!(span.contains_inclusive(span)); // always true for itself
/// assert!(span.contains_inclusive(Span::new(5, 5)));
/// assert!(span.contains_inclusive(Span::new(6, 10)));
/// assert!(span.contains_inclusive(Span::empty(5)));
///
/// assert!(!span.contains_inclusive(Span::new(4, 10)));
/// assert!(!span.contains_inclusive(Span::empty(0)));
/// ```
#[inline]
pub const fn contains_inclusive(self, span: Span) -> bool {
self.start <= span.start && span.end <= self.end
}
/// Create a [`Span`] covering the maximum range of two [`Span`]s.
///
/// # Example
@ -365,4 +389,19 @@ mod test {
assert!(Span::new(0, 1) > Span::new(0, 0));
assert!(Span::new(2, 5) > Span::new(0, 3));
}
#[test]
fn test_contains() {
let span = Span::new(5, 10);
assert!(span.contains_inclusive(span));
assert!(span.contains_inclusive(Span::new(5, 5)));
assert!(span.contains_inclusive(Span::new(10, 10)));
assert!(span.contains_inclusive(Span::new(6, 9)));
assert!(!span.contains_inclusive(Span::new(0, 0)));
assert!(!span.contains_inclusive(Span::new(4, 10)));
assert!(!span.contains_inclusive(Span::new(5, 11)));
assert!(!span.contains_inclusive(Span::new(4, 11)));
}
}