KeyError is an IndexError in 1.9, only include if not already defined

ruby-i18n · Jul 8, 2009 · 3dfc976 · 3dfc976
1 parent b8eef6e
commit 3dfc976
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/lib/i18n/exceptions.rb b/lib/i18n/exceptions.rb
@@ -1,3 +1,9 @@
+class KeyError < IndexError
+  def initialize(message = nil)
+    super(message || "key not found")
+  end
+end unless defined?(KeyError)
+
 module I18n
   class ArgumentError < ::ArgumentError; end
 

diff --git a/lib/i18n/string.rb b/lib/i18n/string.rb
@@ -7,11 +7,11 @@
   license terms as Ruby.
 =end
 
-class KeyError < Exception
+class KeyError < IndexError
   def initialize(message = nil)
     super(message || "key not found")
   end
-end
+end unless defined?(KeyError)
 
 # Extension for String class. This feature is included in Ruby 1.9 or later but not occur TypeError.
 #