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tycasePi etc don't actually need a scope of (S d)

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rhiannon morris 2023-08-24 17:45:37 +02:00
parent 688204f1a4
commit a24ebe0702
1 changed files with 12 additions and 15 deletions
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27
lib/Quox/Reduce.idr
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@ -261,11 +261,8 @@ coeScoped ty p q loc (S names (N body)) =
S names $ N $ E $ Coe ty p q body loc
export covering
CanWhnf Term Reduce.isRedexT
export covering
CanWhnf Elim Reduce.isRedexE
export covering CanWhnf Term Reduce.isRedexT
export covering CanWhnf Elim Reduce.isRedexE
parameters {d, n : Nat} (defs : Definitions) (ctx : WhnfContext d n)
||| performs the minimum work required to recompute the type of an elim.
@ -295,13 +292,14 @@ parameters {d, n : Nat} (defs : Definitions) (ctx : WhnfContext d n)
computeElimType (Comp {ty, _}) = pure ty
computeElimType (TypeCase {ret, _}) = pure ret
parameters {d, n : Nat} (defs : Definitions) (ctx : WhnfContext (S d) n)
parameters {d, n : Nat} (defs : Definitions) (ctx : WhnfContext d n)
||| for π.(x : A) → B, returns (A, B);
||| for an elim returns a pair of type-cases that will reduce to that;
||| for other intro forms error
private covering
tycasePi : (t : Term (S d) n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term (S d) n, ScopeTerm (S d) n)
tycasePi : (t : Term d n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term d n, ScopeTerm d n)
tycasePi (Pi {arg, res, _}) = pure (arg, res)
tycasePi (E e) {tnf} = do
ty <- computeElimType defs ctx e @{noOr2 tnf}
@ -318,8 +316,8 @@ parameters {d, n : Nat} (defs : Definitions) (ctx : WhnfContext (S d) n)
||| for an elim returns a pair of type-cases that will reduce to that;
||| for other intro forms error
private covering
tycaseSig : (t : Term (S d) n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term (S d) n, ScopeTerm (S d) n)
tycaseSig : (t : Term d n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term d n, ScopeTerm d n)
tycaseSig (Sig {fst, snd, _}) = pure (fst, snd)
tycaseSig (E e) {tnf} = do
ty <- computeElimType defs ctx e @{noOr2 tnf}
@ -336,8 +334,8 @@ parameters {d, n : Nat} (defs : Definitions) (ctx : WhnfContext (S d) n)
||| for an elim returns a type-case that will reduce to that;
||| for other intro forms error
private covering
tycaseBOX : (t : Term (S d) n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term (S d) n)
tycaseBOX : (t : Term d n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term d n)
tycaseBOX (BOX {ty, _}) = pure ty
tycaseBOX (E e) {tnf} = do
ty <- computeElimType defs ctx e @{noOr2 tnf}
@ -348,9 +346,8 @@ parameters {d, n : Nat} (defs : Definitions) (ctx : WhnfContext (S d) n)
||| for an elim returns five type-cases that will reduce to that;
||| for other intro forms error
private covering
tycaseEq : (t : Term (S d) n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term (S d) n, Term (S d) n, DScopeTerm (S d) n,
Term (S d) n, Term (S d) n)
tycaseEq : (t : Term d n) -> (0 tnf : No (isRedexT defs t)) =>
Eff Whnf (Term d n, Term d n, DScopeTerm d n, Term d n, Term d n)
tycaseEq (Eq {ty, l, r, _}) = pure (ty.zero, ty.one, ty, l, r)
tycaseEq (E e) {tnf} = do
ty <- computeElimType defs ctx e @{noOr2 tnf}