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pawarser: Implement CompletedMarker::precede

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Schrottkatze 2024-10-21 15:15:40 +02:00
parent fed8cf2466
commit 9b1f6a1dc1
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1 changed files with 12 additions and 1 deletions
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13
crates/pawarser/src/parser/marker.rs
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@ -69,6 +69,17 @@ pub struct CompletedMarker<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> {
impl<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> CompletedMarker<SyntaxKind, SyntaxErr> { impl<SyntaxKind: SyntaxElement, SyntaxErr: SyntaxError> CompletedMarker<SyntaxKind, SyntaxErr> {
pub fn precede(self, p: &mut Parser<SyntaxKind, SyntaxErr>, name: &str) -> Marker { pub fn precede(self, p: &mut Parser<SyntaxKind, SyntaxErr>, name: &str) -> Marker {
todo!() let new_pos = p.start(name);
match &mut p.events[self.pos] {
Event::Start { forward_parent, .. } => {
// point forward parent of the node this marker completed to the new node
// will later be used to make the new node a parent of the current node.
*forward_parent = Some(new_pos.pos - self.pos)
}
_ => unreachable!(),
}
new_pos
} }
} }