lib/prism/serialize.rb in prism-0.21.0 vs lib/prism/serialize.rb in prism-0.22.0

@@ -25,11 +25,11 @@
     # strings.
     MAJOR_VERSION = 0
 
     # The minor version of prism that we are expecting to find in the serialized
     # strings.
-    MINOR_VERSION = 21
+    MINOR_VERSION = 22
 
     # The patch version of prism that we are expecting to find in the serialized
     # strings.
     PATCH_VERSION = 0
 
@@ -242,9 +242,11 @@
         level = io.getbyte
 
         case level
         when 0
           :fatal
+        when 1
+          :argument
         else
           raise "Unknown level: #{level}"
         end
       end