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```
A) Describe the suggested feature and how it is supposed to work and behave
to the end user (player or admin/coder).
TypedObjectManager.typeclass_search(typeclass, with_child_classes=?)
B) List …
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#### Cannot use unnamed typeclasses with the Function command
This is a minimal complete example:
```coq
Require Import Recdef.
Class Bar.
Function iszero (n : nat) `{Bar} {measure id n} …
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Tested with coq 8.7.1.
It seems that transparency hints declared in a database are not used in combination with other databases when calling `typeclasses eauto with database1 database2...`. This se…
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A while back, @JasonGross pointed out that you can obtain an eta expansion of a record's constructor without relying on user-provided typeclass instances like
```coq
(* all you need to do is provi…
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Instead of handling it with typeclasses.
This would allow simpler typeclasses: Html, Pandoc.
It might also allow us to improve performance by avoiding the work of storing and computing ranges.
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Iterable cannot be combined with other types for a typeclass.
### Example
```nim
type IntIter = openArray[int] or iterable[int]
template doThing(a: IntIter) =
for x in a:
echo x
itera…
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```coq
Record B := { A : Type }.
Existing Class A.
Goal forall b, A b -> A b.
intros.
typeclasses eauto. (* works *)
Qed.
Axiom b : B.
Declare Instance foo : A b.
Goal A b.
…
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Some Java classes present `Functor` or `Monad` _shapes_ (like `java.util.Optional`). It would be great to provide instances for `Functor` or `Monad` for this types that leverage their native implement…
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Hi there,
this issue was already discussed on [discourse](https://discourse.julialang.org/t/need-help-with-incomprehensible-typeinference/81056). While we could gather some clarification, it couldn…