Struct CursorOverlaySink

pub struct CursorOverlaySink<'a, T: SourceCursorSink<'a>> { /* private fields */ }

This is a CursorSink that wraps a SourceCursorSink, while also taking a CursorOverlaySet. As Cursors get appended into this sink, it will replay those to the underlying SourceCursorSink unless a CursorOverlaySet overlaps the Cursor’s span, at which point the overlay wil be replayed to the underlying SourceCursorSink. This Sink is useful for collecting new Cursors (say from an AST) to overlap (or, say, transform) the underlying base Cursors (read: AST). In other words, writing over the top of the source.

Other than replaying overlays in place of the underyling cursors, no other modifications are made to the Cursors, that is up to the base SourceCursorSink, which can apply additional formatting or logic.

Implementations

impl<'a, T: SourceCursorSink<'a>> CursorOverlaySink<'a, T>

pub fn new( source_text: &'a str, overlays: &'a CursorOverlaySet<'a>, sink: T, ) -> Self

Trait Implementations

impl<'a, T: SourceCursorSink<'a>> CursorSink for CursorOverlaySink<'a, T>

fn append(&mut self, c: Cursor)

impl<'a, T: Debug + SourceCursorSink<'a>> Debug for CursorOverlaySink<'a, T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, T: SourceCursorSink<'a>> SourceCursorSink<'a> for CursorOverlaySink<'a, T>

fn append(&mut self, c: SourceCursor<'a>)