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

[Julien Fischer]

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?

Julien.
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