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-rw-r--r--dhall_syntax/src/parser.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/dhall_syntax/src/parser.rs b/dhall_syntax/src/parser.rs
index d8bd957..9d9a374 100644
--- a/dhall_syntax/src/parser.rs
+++ b/dhall_syntax/src/parser.rs
@@ -878,6 +878,7 @@ make_parser! {
rule!(selector<Either<Label, Vec<Label>>>; children!(
[label(l)] => Either::Left(l),
[labels(ls)] => Either::Right(ls),
+ [expression(e)] => unimplemented!("selection by expression"), // TODO
));
rule!(labels<Vec<Label>>; children!(