fix indexing

roc-lang · Nov 21, 2023 · 18040cc · 18040cc
1 parent a6cde11
commit 18040cc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/crates/compiler/exhaustive/src/lib.rs b/crates/compiler/exhaustive/src/lib.rs
@@ -526,7 +526,7 @@ fn specialize_row_with_polymorphic_list(
     let (patterns_before, patterns_after) = match polymorphic_list_ctor {
         ListArity::Slice(before, after) => (
             &list_element_patterns[..before],
-            &list_element_patterns[after..],
+            &list_element_patterns[list_element_patterns.len() - after..],
         ),
         ListArity::Exact(_) => (list_element_patterns, &[] as &[Pattern]),
     };