From: Jean-Hugues ROBERT <jean_hugues_robert@...>
Date: 2002-06-20T21:45:25+09:00
Subject: What rational for failure of ("" << nil) and of ("" << :Foo) ?



Hello,

What is the rational for failure of "" << nil and of "" << :Foo ?

Apparently <<() (and +()) uses to_str() only, never to_s().

However this works: "#{nil}#{:Foo}"

I may do this to define to_str():
   class NilClass
     def to_str() to_s() end
   end
   class Symbol
     def to_str() to_s() end
   end
and then ("" << nil << :Foo) works.

... But I wonder if that could break things in some other cases?

Thanks,

Jean-Hugues

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