[cfe-commits] [PATCH] Add Assumer class

[Zhongxing Xu]

> Here are some comments!
>
> First, I have to be honest that I don't like the name "Assumer" for the
> actual interface.  I think that using the word "Assume" is fine for the
> methods since that matches with the model-checking terminology (essentially,
> "Assume" represents a verb, or action, that we are taking with respect to
> modifying the state).  I think the name of the Assumer class should reflect
> what it represents, which are constraints on the values of state.  So I
> suggest *something* like the following (we can iterate on the precise name):
>
>  Assumer ->  ConstraintsManager
>
> This makes it much more clear that the ConstraintsManager manages
> 'constraints' within the state.  We can iterate on the name, but "Assumer" I
> feel that isn't descriptive enough.
>
> I also think this patch is a little incomplete, since the code it
> introduces doesn't actually get hooked up to GRState.  All of the Assume
> methods in GRStateManager should just forward over to the ConstraintManager
> object, e.g:
>
> class GRStateManager {
>  ...
>  const GRState* Assume(const GRState* St, NonLVal Cond, bool Assumption,
>                           bool& isFeasible) {
>    return ConstraintsMgr.Assume(St, *this, Cond, Assumption, isFeasible);
> }
>
> If you actually migrate this core logic over to BasicConstraintsManager
> (BasicAssumer in your patch), then you can actually run "make test" to see
> if your patch does the right thing.
>

New patch attached.
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