Copy instance vars in Binding#dup

headius · Jun 20, 2024 · 1284bf6 · 1284bf6
1 parent 97b07e9
commit 1284bf6
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/core/src/main/java/org/jruby/RubyBinding.java b/core/src/main/java/org/jruby/RubyBinding.java
@@ -108,7 +108,11 @@ public IRubyObject initialize(ThreadContext context) {
 
     @JRubyMethod
     public IRubyObject dup(ThreadContext context) {
-        return newBinding(context.runtime, binding.dup(context));
+        RubyBinding newBinding = newBinding(context.runtime, binding.dup(context));
+
+        copyInstanceVariablesInto(newBinding);
+
+        return newBinding;
     }
 
     @JRubyMethod(name = "initialize_copy", visibility = Visibility.PRIVATE)