feat: optimized deriving BEq for enumeration types
#660
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leodemoura
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Sep 8, 2021
leodemoura
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Sep 8, 2021
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Thanks for the PR. It is useful. I have only two minor issues. |
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* `@[to_additive]` will now correctly guess names with `CoeTC`, `CoeT` and `CoeHTCT` in it * rewrite function `targetName`. - It will now warn the user if it gives a composite name that can be auto-generated (before `to_additive` would never warn if a composite name was given). - the logic when `allowAutoName = true` now corresponds to the docstring - Fix a bug where declarations were silently allowed to translate to itself (maybe because the `return` statements returned a value for the whole function?) - Add some more tracing - The behavior of namespaces when giving a composite name has been changed. It will always generate a name with the same number of components. Example: ```lean namespace MeasureTheory.MulMeasure @[to_additive AddMeasure.myOperation] def myOperation := ... -- before: generates `AddMeasure.myOperation` (and never gives a warning) -- after: generates `MeasureTheory.AddMeasure.myOperation` (and probably warns that the name can be auto-generated) end MeasureTheory.MulMeasure ``` * This should fix all problems in leanprover#659 other than leanprover#660 Minor changes: * When applying `@[to_additive]` to a structure, add a trace message if no translation is inserted for a field. * Define `Name.fromComponents` and `Name.splitAt` * Reduce transitive imports of `Tactic/toAdditive` * Move some auxiliary declarations from `Tactic/Simps` to more appropriate places - swap arguments of `String.isPrefixOf?` - improve `Name.getString` Co-authored-by: Scott Morrison <[email protected]>
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This pull request introduces an optimised code path for enumeration types for the
deriving BEqelaboration.With this commit the test case elaborates on my machine
without I get (after increasing
set_option maxHeartbeats 10000000)