🚀 go-pugleaf

clamage@Eng.Sun.COM (Steve Clamage) wrote:
>
>In article 100000@zorglub.cae.ca, dak <pierreba@poster.cae.ca> writes:
>>I recall a conversation on the using keyword but no mention of an answer to
>>this: why isn't it possible to use the using keyword to import a whole class
>>into another ? 
>
>What would you want it to mean? 

Well, now you ask, I'd like to be able to use an _expression_
in a class -- to implement delegation. For example:

 class W { void g(); };
 class X { void f(); };
 class Y { 
   X x;
   W *pw;
   using x;
   using *pw;
 };

 Y y;
 y.f(); // OK, means y.x.f()
 y.g(); // OK, means (*y.pw).g()

-- 
John Max Skaller               voice: 61-2-566-2189
81 Glebe Point Rd              fax:   61-2-660-0850
GLEBE NSW 2037                 email: maxtal@suphys.physics.oz.au
AUSTRALIA                      email: skaller@maxtal.com.au




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