2022-09-08 18:49:47 +00:00
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λ(nix : ../NixPrelude.dhall) →
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let Any = ../Any/Type.dhall
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let Set = ../Set/Type.dhall
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let Optional/fold =
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2022-09-14 14:51:57 +00:00
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https://raw.githubusercontent.com/dhall-lang/dhall-lang/v22.0.0/Prelude/Optional/fold.dhall
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2022-09-08 18:49:47 +00:00
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sha256:c5b9d72f6f62bdaa0e196ac1c742cc175cd67a717b880fb8aec1333a5a4132cf
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let Any/toAny = ../Any/toAny.dhall nix
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let Any/hasAttr = ../Any/hasAttr.dhall nix
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let Any/select = ../Any/select.dhall nix
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let Any/selectOptional = ../Any/selectOptional.dhall nix
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let Any/toTypeUnchecked = ../Any/toTypeUnchecked.dhall nix
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let FunctionType = λ(x : Type) → x → ∀(a : Type) → ∀(b : Type) → (a → b) → Set
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let function =
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λ(function : FunctionType Any) →
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let functionArgs =
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Any/toTypeUnchecked
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(FunctionType (FunctionType Any))
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(Any/toAny (FunctionType Any) function)
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function
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in λ(a : Type) →
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λ(b : Type) →
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λ(f : a → b) →
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let fAny = Any/toAny (a → b) f
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let functor =
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Any/toTypeUnchecked (a → b) (Any/select fAny "__functor")
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let functorArg =
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Optional/fold
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Any
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(Any/selectOptional fAny "__functionArgs")
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Set
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(Any/toTypeUnchecked Set)
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(functionArgs a b functor)
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in if Any/hasAttr fAny "__functor"
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then functorArg
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else nix.builtins.functionArgs (Any/toAny (a → b) f)
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let functionErased =
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Any/toTypeUnchecked
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(FunctionType Any)
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(Any/toAny (FunctionType (FunctionType Any)) function)
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in function functionErased
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