Merge pull request #6989 from ahorek/case_bug

enebo · web-flow · commit deb070f2cf0d · 2022-01-10T09:51:21.000-06:00
case when with an empty array
diff --git a/core/src/main/java/org/jruby/ir/IRBuilder.java b/core/src/main/java/org/jruby/ir/IRBuilder.java
@@ -1392,7 +1392,7 @@ private void buildWhenArgs(WhenNode whenNode, Operand testValue, Label bodyLabel
         Variable eqqResult = createTemporaryVariable();
         Node exprNodes = whenNode.getExpressionNodes();
 
-        if (exprNodes instanceof ListNode && !(exprNodes instanceof DNode) && !(exprNodes instanceof ArrayNode)) {
+        if (exprNodes instanceof ListNode && !(exprNodes instanceof DNode) && !(exprNodes instanceof ArrayNode) && !(exprNodes instanceof ZArrayNode)) {
             buildWhenValues(eqqResult, (ListNode) exprNodes, testValue, bodyLabel, seenLiterals);
         } else if (exprNodes instanceof ArgsPushNode || exprNodes instanceof SplatNode || exprNodes instanceof ArgsCatNode) {
             buildWhenSplatValues(eqqResult, exprNodes, testValue, bodyLabel, seenLiterals);
