use crate::common::*;
pub(crate) trait CompilationResultExt {
fn expected(self, kinds: &[TokenKind]) -> Self;
}
impl<'src, T> CompilationResultExt for CompilationResult<'src, T> {
fn expected(mut self, kinds: &[TokenKind]) -> Self {
if let Err(CompilationError {
kind: CompilationErrorKind::UnexpectedToken {
ref mut expected, ..
},
..
}) = &mut self
{
expected.extend_from_slice(kinds);
expected.sort();
expected.dedup();
}
self
}
}