diff options
Diffstat (limited to 'src/syntax/span.rs')
| -rw-r--r-- | src/syntax/span.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/syntax/span.rs b/src/syntax/span.rs index bfb9e755..ee7cba4c 100644 --- a/src/syntax/span.rs +++ b/src/syntax/span.rs @@ -109,6 +109,11 @@ impl Span { *self = self.join(other) } + /// Test whether a position is within the span. + pub fn contains_pos(&self, pos: Pos) -> bool { + self.start <= pos && self.end >= pos + } + /// Test whether one span complete contains the other span. pub fn contains(self, other: Self) -> bool { self.source == other.source && self.start <= other.start && self.end >= other.end @@ -118,6 +123,16 @@ impl Span { pub fn to_range(self) -> Range<usize> { self.start.to_usize() .. self.end.to_usize() } + + /// A new span at the position of this span's start. + pub fn at_start(&self) -> Span { + Self::at(self.source, self.start) + } + + /// A new span at the position of this span's end. + pub fn at_end(&self) -> Span { + Self::at(self.source, self.end) + } } impl Debug for Span { |