Re: [sv-ec] Interface Class discussion today

Tom, here is what I had in mind. Now, clearly, the rules for virtual
method overrides
don't work for implementing "virtual taks void put (T_in a)" since the
name of
the type T_in is not identical to the name of the type T in the base.

*class*Fifo#(*type* T_in = *logic*,
*type* T_out = logic,
             DEPTH = 1) *implements* PutImp#(T_in), GetImp#(T_out);

    T_in [DEPTH-1:0] myFifo;

*virtual task void* put(T_in a);

       // Put implementation

*virtual task* T_out get();

       // Get implementation

*endclass*

Gord

On 11/8/2010 11:01 AM, Alsop, Thomas R wrote:
>
> For discussion today... I tried adding another type to the PutImp
> below and I want to walk through it to get clarification on if this
> makes sense, if this is what was asked for and how to put rules behind
> it, as requested two weeks ago. More to come. -Tom
>
> *interface class*PutImp#(*type* T = *logic, string *MyPutSignal = "a");
>
> *pure virtual task void* put(T MyPutSignal);
>
> *endclass***
>
> *interface class*GetImp#(*type* T = *logic*);
>
> *pure virtual task *T get();
>
> *endclass***
>
> *class*Fifo#(*type* T = *logic*, DEPTH = 1) *implements* PutImp#(T),
> GetImp#(T);
>
> T [DEPTH-1:0] myFifo;
>
> *virtual task void* put(T, a);
>
> // Put implementation
>
> *virtual task* T get();
>
> // Get implementation
>
> *endclass*
>
> **
>
> *class *MyQueue(*type* T = *logic*, DEPTH = 1, *string *MyPutSignal =
> "a");
>
> *T* [DEPTH-1:0] PipeQueue[$];
>
> *virtual* *function* void deleteQ();
>
> // Delete implementation
>
> *endfunction*
>
> *endclass*
>
> **
>
> *class*Fifo extends MyQueue#(T, DEPTH), *implements* PutImp#(T),
> GetImp#(T);
>
> *virtual task void* put(T, b);
>
> // Put implementation
>
> *virtual task* T get();
>
> // Get implementation
>
> *endclass*
>
> **
>
> Need more interesting types instead of just 'T'. Pass in two
> different types, have put and get use two different types working in
> each case.Why not explicitly state this?. So we need rules behind
> them and not just examples.
>
>
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Gordon Vreugdenhil                                503-685-0808
Model Technology (Mentor Graphics)                gordonv@model.com
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