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referring to an enumerated type value from another e package

avidane

Hi,

If a type t1 is defined in a single package I can do something like this:

type t1 : [A, B];

extend sys {

   l[2] : list of bit;

   run() is also {

     l[t1'A.as_a(uint)] = 1;

     l[t1'B.as_a(uint)] = 0;

  }

};

But what happens if t1 is defined in more then one package, and I have to qualify the type name with a pacakge name?

The following doesn't compile...

------------

package p1;

type t1 : [A, B];

------------

package p2;

type t1 : [C, D];

 -----------

package p3;

extend sys {

   l[2] : list of bit;

   run() is also {

     l[p1::t1'A.as_a(uint)] = 1;

     l[p1::t1'B.as_a(uint)] = 0;

  };

};

 

Thanks,

Avidan Efody

 

 

     

 

 

 

  • Hi Avidan.

    I've not come across this requirement before! It looks like perhaps the parser is treating the package qualifier "pkg1::" as less tightly bound than the enum tag 'A.

    I guess a quick and dirty workaround is to use an intermediate variable of the right type:

    <'
    package p3;
    import pkg1.e;
    import pkg2.e;


    extend sys {

       l[2] : list of bit;

       run() is also {
         var i : p1::t1;
         i = A;
         l[i.as_a(uint)] = 1;
         i = B;
         l[i.as_a(uint)] = 0;
      };

    };
    '>

     

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