From: matz@... (Yukihiro Matsumoto)
Date: 2001-05-30T15:42:26+09:00
Subject: [ruby-talk:16012] Re: new keyword idea: tryreturn, tryturn or done

Hi,

In message "[ruby-talk:15954] new keyword idea: tryreturn, tryturn or done"
    on 01/05/30, Juha Pohjalainen <voidjump@nic.fi> writes:

||----------------------------------------------------------
|| def doSomethingWith value
||   result = tryFirstThing value
||   return result if result
||   makeSomePreparations value
||   result = trySomethingElse value
||   return result if result
||   raise TypeError, "could not do it"
|| end
||----------------------------------------------------------
|
|Or what do you think?
|
||----------------------------------------------------------
|| def doSomethingWith value
||   tryturn tryFirstThing value
||   makeSomePreparations value
||   tryturn trySomethingElse value
||   raise TypeError, "could not do it"
|| end
||----------------------------------------------------------

 def doSomethingWith value
   return tryFirstThing value ||
          (makeSomePreparations value;
           trySomethingElse value) ||
           raise(TypeError, "could not do it")
 end

or

 def doSomethingWith value
   return tryFirstThing value ||
          (makeSomePreparations value;
           trySomethingElse value or 
           raise TypeError, "could not do it")
 end


							matz.