Support pure specialization patterns #109
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Add a custom version of synthInstance for the proof mode that can create and instantiate mvars. It is implemented as a simple backtracking search, reusing the standard instance infrastructure. This version of synthInstance should be used for the IPM proof mode classes, marked with the attribute ipm_class. Also some other small refactorings: - Allow iexists to take multiple arguments - Fix handling of created goals in iexists - Use the Goals structure more consistently - Add some more error messages - Generalize AsEmpValid over the direction similar to the Rocq version
This commit adds [InOut] that is used to dynamically determine whether a type class parameter is an input or an output. This is important for classes that are used with multiple modings, e.g., IntoWand. Instances can match on the InOut parameter to avoid accidentially instantiating outputs if matching on an input was intended.
Backtracking can be selectively enabled for specific instanes with ipm_backtrack
Add support for pure specialization patterns `%h`. This subsumes the dedicated forall specialization parts of proof mode terms.
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Based on #108
Add support for pure specialization patterns
%h. This subsumes the dedicated forall specialization parts of proof mode terms.TODO: decide which syntax to use for proof mode terms. This PR uses
$$, but this can / should be changed.