[m-dev.] Making goals in negated contexts with inst any args impure

Julien Fischer juliensf at cs.mu.OZ.AU
Wed Oct 12 17:17:13 AEST 2005

On Wed, 12 Oct 2005, Ralph Becket wrote:

> I want to make the compiler report an error if a program features an
> inst any variable in a goal in a negated context where that goal has
> not been declared impure.
> I think the right thing to do is to move purity analysis until after
> mode analysis and add the new checks to purity.m

Couldn't you just do this during mode checking?

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