FIX: exists(null, ...) == 0

bids-standard · Oct 12, 2023 · 2d6288c · 2d6288c
1 parent c04a63a
commit 2d6288c
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/bids-validator/src/schema/expressionLanguage.ts b/bids-validator/src/schema/expressionLanguage.ts
@@ -1,4 +1,8 @@
 function exists(list: string[], rule: string = 'dataset'): number {
+  if (list == null) {
+    return 0
+  }
+
   const prefix: string[] = []
 
   // Stimuli and subject-relative paths get prefixes