Allow empty arrays in grammar

Nikita Glukhov · Nikita Glukhov · commit 3aa9cd905089 · 2019-04-15T17:13:13.000+03:00
diff --git a/jsquery_gram.y b/jsquery_gram.y
@@ -255,6 +255,7 @@ result:
 
 array:
 	'[' value_list ']'				{ $$ = makeItemArray($2); }
+	| '[' ']'						{ $$ = makeItemArray(NIL); }
 	;
 
 scalar_value:
