189f5d41fb
This PR introduces a new feature that allows users to specify which inductive datatypes the `grind` tactic should perform case splits on. The configuration option `splitIndPred` is now set to `false` by default. The attribute `[grind cases]` is used to mark inductive datatypes and predicates that `grind` may case split on during the search. Additionally, the attribute `[grind cases eager]` can be used to mark datatypes and predicates for case splitting both during pre-processing and the search. Users can also write `grind [HasType]` or `grind [cases HasType]` to instruct `grind` to perform case splitting on the inductive predicate `HasType` in a specific instance. Similarly, `grind [-Or]` can be used to instruct `grind` not to case split on disjunctions. Co-authored-by: Leonardo de Moura <leodemoura@amazon.com>
31 lines
704 B
Text
31 lines
704 B
Text
/--
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error: invalid `[grind cases eager]`, `List` is not a non-recursive inductive datatype or an alias for one
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-/
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#guard_msgs (error) in
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attribute [grind cases eager] List
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attribute [grind cases] List
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attribute [grind] Prod
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/--
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error: invalid `[grind cases]`, `id` is not an inductive datatype or an alias for one
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-/
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#guard_msgs (error) in
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attribute [grind cases] id
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/--
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error: invalid `[grind cases eager]`, `id` is not a non-recursive inductive datatype or an alias for one
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-/
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#guard_msgs (error) in
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attribute [grind cases eager] id
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example : True := by
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grind [-List]
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/--
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error: `Array` is not marked with the `[grind]` attribute
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-/
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#guard_msgs (error) in
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example : True := by
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grind [-Array]
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