message.rb in ftw-0.0.48

- old
+ new

@@ -19,10 +19,13 @@
   attr_accessor :version
 
   # HTTP Versions that are valid.
   VALID_VERSIONS = [1.0, 1.1]
 
+  # For backward-compatibility, this exception inherits from ArgumentError
+  UnsupportedHTTPVersion = Class.new(ArgumentError)
+
   private
 
   # A new HTTP message.
   def initialize
     @headers = FTW::HTTP::Headers.new
@@ -99,10 +102,10 @@
   def version=(ver)
     # Accept string "1.0" or simply "1", etc.
     ver = ver.to_f if !ver.is_a?(Float)
 
     if !VALID_VERSIONS.include?(ver)
-      raise ArgumentError.new("#{self.class.name}#version = #{ver.inspect} is" \
+      raise UnsupportedHTTPVersion.new("#{self.class.name}#version = #{ver.inspect} is" \
         "invalid. It must be a number, one of #{VALID_VERSIONS.join(", ")}")
     end
     @version = ver
   end # def version=
 