ext/RMagick/rminfo.c in rmagick-4.1.2 vs ext/RMagick/rminfo.c in rmagick-4.2.0

@@ -2412,11 +2412,19 @@
 VALUE
 Info_initialize(VALUE self)
 {
     if (rb_block_given_p())
     {
-        // Run the block in self's context
-        rb_obj_instance_eval(0, NULL, self);
+        if (rb_proc_arity(rb_block_proc()) == 0)
+        {
+            // Run the block in self's context
+            rb_warn("passing a block without an image argument is deprecated");
+            rb_obj_instance_eval(0, NULL, self);
+        }
+        else
+        {
+            rb_yield(self);
+        }
     }
     return self;
 }