[Agda] agda slow

[Thorsten Altenkirch]

Thank you for your advice. As usual I have jumped to the conclusion too
quickly. Switching off eta by declaring records to be coinductive doesn’t
help. :-(

Maybe it is caused by me using a let inside a lambda inside a record?

m : Methods M
m = record
      { .. ; _[_]Tᴹ = λ {Γ} {Γᴹ} {Δ} {Δᴹ} {A} Aᴹ {δ} δᴹ →
      let
        p : ((A [ δ ]T) [ Pr Γᴹ ]T) [ π₁ {A = A [ δ ]T [ Pr Γᴹ ]T} id ]T ≡
(A [ Pr Δᴹ ]T) [ =s δᴹ ∘ π₁ id ]T
        p = obvious
      in Aᴹ [ =s δᴹ ∘ (π₁ id) , coe (TmΓ= p) (π₂ id) ]T
 


The full code is at https://bitbucket.org/akaposi/tt-in-tt in
TT/LogPredElim.agda

I am happy to do more experiments as soon as I find the time but I’d just
like to know wether this is related to a known issue.

Thorsten

On 02/06/2015 17:44, "Andrea Vezzosi" <sanzhiyan at gmail.com> wrote:

>One hacky way would be to declare them coinductive, that would disable
>eta but also pattern matching.
>
>record Foo .. : Set where
>   coinductive
>   field
>      bar : ...
>
>
>Best,
>Andrea
>
>
>On Tue, Jun 2, 2015 at 6:03 PM, Thorsten Altenkirch
><Thorsten.Altenkirch at nottingham.ac.uk> wrote:
>> Hi,
>>
>> I know that this is a common experience. I was just starting to use some
>> records to restructure some code we are working on and the memory goes
>> through the roof. Is there a way to switch off eta expansion of records
>>or
>> would this disable type checking of records altogether.
>>
>> Cheers,
>> Thorsten
>>
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