From ffd72d6471ec0166b4dcb4f6b622bcc1c4aafcbf Mon Sep 17 00:00:00 2001 From: Helmut Grohne Date: Thu, 30 Jan 2014 14:04:29 +0100 Subject: make the getlen functions explicit in PartialVecBFF There is no way for Agda to infer these functions or even the intended index Setoid, so making these explicit is rather required. --- BFF.agda | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'BFF.agda') diff --git a/BFF.agda b/BFF.agda index bf8e751..b26cc92 100644 --- a/BFF.agda +++ b/BFF.agda @@ -37,8 +37,9 @@ module PartialVecBFF (A : DecSetoid ℓ₀ ℓ₀) where denumerate : {n : ℕ} → Vec Carrier n → Fin n → Carrier denumerate = flip lookupV - bff : {I : Setoid ℓ₀ ℓ₀} {gl₁ : I ↪ (EqSetoid ℕ)} {gl₂ : I ⟶ EqSetoid ℕ} → get-type gl₁ gl₂ → ({i : Setoid.Carrier I} → Vec Carrier (to gl₁ ⟨$⟩ i) → Vec Carrier (gl₂ ⟨$⟩ i) → Maybe (Vec Carrier (to gl₁ ⟨$⟩ i))) - bff get s v = let s′ = enumerate s + bff : {I : Setoid ℓ₀ ℓ₀} → (gl₁ : I ↪ (EqSetoid ℕ)) → (gl₂ : I ⟶ EqSetoid ℕ) → get-type gl₁ gl₂ → ({i : Setoid.Carrier I} → Vec Carrier (to gl₁ ⟨$⟩ i) → Vec Carrier (gl₂ ⟨$⟩ i) → Maybe (Vec Carrier (to gl₁ ⟨$⟩ i))) + bff gl₁ gl₂ get s v = + let s′ = enumerate s t′ = get s′ g = fromFunc (denumerate s) g′ = delete-many t′ g @@ -54,4 +55,4 @@ module VecBFF (A : DecSetoid ℓ₀ ℓ₀) where open PartialVecBFF A public using (assoc ; enumerate ; denumerate) bff : {getlen : ℕ → ℕ} → (get-type getlen) → ({n : ℕ} → Vec Carrier n → Vec Carrier (getlen n) → Maybe (Vec Carrier n)) - bff {getlen} get s v = PartialVecBFF.bff A {_} {id↪} {≡-to-Π getlen} get {_} s v + bff {getlen} get s v = PartialVecBFF.bff A id↪ (≡-to-Π getlen) get {_} s v -- cgit v1.2.3