more erasure
This commit is contained in:
parent
ea74c148b7
commit
8e0d66cab8
|
|
@ -50,6 +50,7 @@ data Error =
|
|||
CompileTimeOnly (ErasureContext d n) (Q.Term d n)
|
||||
| WrapTypeError TypeError
|
||||
| Postulate Loc Name
|
||||
| WhileErasing Name Q.Definition Error
|
||||
%name Error err
|
||||
|
||||
private %inline
|
||||
|
|
@ -58,9 +59,10 @@ notInScope = WrapTypeError .: NotInScope
|
|||
|
||||
export
|
||||
Located Error where
|
||||
(CompileTimeOnly _ s).loc = s.loc
|
||||
(WrapTypeError err).loc = err.loc
|
||||
(Postulate loc _).loc = loc
|
||||
(CompileTimeOnly _ s).loc = s.loc
|
||||
(WrapTypeError err).loc = err.loc
|
||||
(Postulate loc _).loc = loc
|
||||
(WhileErasing _ def e).loc = e.loc `or` def.loc
|
||||
|
||||
|
||||
parameters {opts : LayoutOpts} (showContext : Bool)
|
||||
|
|
@ -74,6 +76,9 @@ parameters {opts : LayoutOpts} (showContext : Bool)
|
|||
prettyErrorNoLoc showContext err
|
||||
prettyErrorNoLoc (Postulate _ x) =
|
||||
pure $ sep [!(prettyFree x), "is a postulate with no definition"]
|
||||
prettyErrorNoLoc (WhileErasing name def err) = pure $
|
||||
vsep [hsep ["while erasing the definition", !(prettyFree name)],
|
||||
!(prettyErrorNoLoc err)]
|
||||
|
||||
export
|
||||
prettyError : Error -> Eff Pretty (Doc opts)
|
||||
|
|
@ -147,7 +152,8 @@ eraseTerm ctx _ s@(Pi {}) =
|
|||
-- to preserve expected evaluation order
|
||||
eraseTerm ctx ty (Lam body loc) = do
|
||||
(qty, arg, res) <- wrapExpect `(expectPi) ctx loc ty
|
||||
let x = body.name
|
||||
let x = case isErased qty of Kept => body.name
|
||||
Erased => BN Unused body.name.loc
|
||||
body <- eraseTerm (extendTy qty x arg ctx) res.term body.term
|
||||
pure $ U.Lam x body loc
|
||||
|
||||
|
|
@ -346,7 +352,7 @@ eraseElim ctx (CaseNat qty qtyIH nat ret zero succ loc) = do
|
|||
eraseElim ctx (CaseBox qty box ret body loc) = do
|
||||
tbox <- computeElimType ctx SOne box -- [fixme] is there any way to avoid this?
|
||||
(pi, tinner) <- wrapExpect `(expectBOX) ctx loc tbox
|
||||
let ctx' = extendTy Zero body.name tinner ctx
|
||||
let ctx' = extendTy (pi * qty) body.name tinner ctx
|
||||
bty = sub1 (ret // shift 1) $
|
||||
Ann (Box (BVT 0 loc) loc) (weakT 1 tbox) loc
|
||||
case isErased pi of
|
||||
|
|
@ -397,9 +403,10 @@ eraseElim ctx (DCloE (Sub term th)) =
|
|||
|
||||
export covering
|
||||
eraseDef : Name -> Q.Definition -> Eff Erase U.Definition
|
||||
eraseDef name (MkDef qty type body loc) = do
|
||||
eraseDef name def@(MkDef qty type body loc) =
|
||||
wrapErr (WhileErasing name def) $
|
||||
case isErased qty.qty of
|
||||
Erased => pure ErasedDef
|
||||
Kept => case body of
|
||||
Concrete body => KeptDef <$> eraseTerm empty type body
|
||||
Postulate => throw $ Postulate loc name
|
||||
Concrete body => KeptDef <$> eraseTerm empty type body
|
||||
|
|
|
|||
|
|
@ -73,85 +73,94 @@ public export
|
|||
Definitions = SortedMap Name Definition
|
||||
|
||||
|
||||
parameters {opts : LayoutOpts}
|
||||
export
|
||||
prettyTerm : BContext n -> Term n -> Eff Pretty (Doc opts)
|
||||
export
|
||||
prettyTerm : {opts : LayoutOpts} -> BContext n ->
|
||||
Term n -> Eff Pretty (Doc opts)
|
||||
|
||||
export
|
||||
prettyArg : BContext n -> Term n -> Eff Pretty (Doc opts)
|
||||
prettyArg xs arg = withPrec Arg $ prettyTerm xs arg
|
||||
export
|
||||
prettyArg : {opts : LayoutOpts} -> BContext n -> Term n -> Eff Pretty (Doc opts)
|
||||
prettyArg xs arg = withPrec Arg $ prettyTerm xs arg
|
||||
|
||||
export
|
||||
prettyApp' : Context' BindName n -> Doc opts -> Term n -> Eff Pretty (Doc opts)
|
||||
prettyApp' xs fun arg =
|
||||
parensIfM App =<< do
|
||||
arg <- prettyArg xs arg
|
||||
pure $ sep [fun, arg]
|
||||
export
|
||||
prettyApp' : {opts : LayoutOpts} -> BContext n -> Doc opts ->
|
||||
Term n -> Eff Pretty (Doc opts)
|
||||
prettyApp' xs fun arg =
|
||||
parensIfM App =<< do
|
||||
arg <- prettyArg xs arg
|
||||
pure $ sep [fun, arg]
|
||||
|
||||
export
|
||||
prettyApp : Context' BindName n -> Term n -> Term n -> Eff Pretty (Doc opts)
|
||||
prettyApp xs fun arg = prettyApp' xs !(prettyArg xs fun) arg
|
||||
export
|
||||
prettyApp : {opts : LayoutOpts} -> BContext n ->
|
||||
Term n -> Term n -> Eff Pretty (Doc opts)
|
||||
prettyApp xs fun arg =
|
||||
prettyApp' xs !(withPrec App $ prettyTerm xs fun) arg
|
||||
|
||||
public export
|
||||
PrettyCaseArm : Nat -> Type
|
||||
PrettyCaseArm n = Exists $ \s => (Vect s BindName, Term (s + n))
|
||||
public export
|
||||
record PrettyCaseArm a n where
|
||||
constructor MkPrettyCaseArm
|
||||
lhs : a
|
||||
{len : Nat}
|
||||
vars : Vect len BindName
|
||||
rhs : Term (len + n)
|
||||
|
||||
export %inline
|
||||
caseArm : Vect s BindName -> Term (s + n) -> PrettyCaseArm n
|
||||
caseArm xs t = Evidence _ (xs, t)
|
||||
export
|
||||
prettyCase : {opts : LayoutOpts} -> BContext n ->
|
||||
(a -> Eff Pretty (Doc opts)) ->
|
||||
Term n -> List (PrettyCaseArm a n) ->
|
||||
Eff Pretty (Doc opts)
|
||||
prettyCase xs f head arms =
|
||||
parensIfM Outer =<< do
|
||||
header <- hsep <$> sequence [caseD, prettyTerm xs head, ofD]
|
||||
cases <- for arms $ \(MkPrettyCaseArm lhs ys rhs) => do
|
||||
lhs <- hsep <$> sequence [f lhs, darrowD]
|
||||
rhs <- withPrec Outer $ prettyTerm (xs <>< ys) rhs
|
||||
hangDSingle lhs rhs
|
||||
lb <- hl Delim "{"; sc <- semiD; rb <- hl Delim "}"; d <- askAt INDENT
|
||||
pure $ ifMultiline
|
||||
(hsep [header, lb, separateTight sc cases, rb])
|
||||
(vsep [hsep [header, lb], indent d $ vsep (map (<+> sc) cases), rb])
|
||||
|
||||
export
|
||||
prettyCase : Context' BindName n ->
|
||||
(a -> Eff Pretty (Doc opts)) ->
|
||||
Term n -> List (a, PrettyCaseArm n) ->
|
||||
Eff Pretty (Doc opts)
|
||||
prettyCase xs f head arms =
|
||||
parensIfM Outer =<< Prelude.do
|
||||
header <- hsep <$> sequence [caseD, prettyTerm xs head, ofD]
|
||||
cases <- for arms $ \(lhs, (Evidence s (ys, rhs))) => do
|
||||
lhs <- hsep <$> sequence [f lhs, darrowD]
|
||||
rhs <- withPrec Outer $ prettyTerm (xs <>< ys) rhs
|
||||
hangDSingle lhs rhs
|
||||
body <- braces $ separateLoose !semiD cases
|
||||
pure $ sep [header, body]
|
||||
prettyTerm _ (F x _) = prettyFree x
|
||||
prettyTerm xs (B i _) = prettyTBind $ xs !!! i
|
||||
prettyTerm xs (Lam x body _) =
|
||||
parensIfM Outer =<< do
|
||||
header <- hsep <$> sequence [lamD, prettyTBind x, darrowD]
|
||||
body <- withPrec Outer $ prettyTerm (xs :< x) body
|
||||
hangDSingle header body
|
||||
prettyTerm xs (App fun arg _) = prettyApp xs fun arg
|
||||
prettyTerm xs (Pair fst snd _) =
|
||||
parens =<< separateTight !commaD <$>
|
||||
sequence {t = List} [prettyTerm xs fst, prettyTerm xs snd]
|
||||
prettyTerm xs (Fst pair _) = prettyApp' xs !fstD pair
|
||||
prettyTerm xs (Snd pair _) = prettyApp' xs !sndD pair
|
||||
prettyTerm xs (Tag tag _) = prettyTag tag
|
||||
prettyTerm xs (CaseEnum tag cases _) =
|
||||
assert_total
|
||||
prettyCase xs prettyTag tag $
|
||||
map (\(t, rhs) => MkPrettyCaseArm t [] rhs) cases
|
||||
prettyTerm xs (Absurd _) = hl Syntax "absurd"
|
||||
prettyTerm xs (Zero _) = zeroD
|
||||
prettyTerm xs (Succ nat _) = prettyApp' xs !succD nat
|
||||
prettyTerm xs (CaseNat nat zer x ih suc _) =
|
||||
assert_total
|
||||
prettyCase xs pure nat
|
||||
[MkPrettyCaseArm !zeroD [] zer,
|
||||
MkPrettyCaseArm !sucPat [x, ih] suc]
|
||||
where
|
||||
sucPat = pure $
|
||||
hsep [!succD, !(prettyTBind x) <+> !commaD, !(prettyTBind ih)]
|
||||
prettyTerm _ (Erased _) =
|
||||
hl Syntax =<< ifUnicode "⌷" "[]"
|
||||
|
||||
prettyTerm _ (F x _) = prettyFree x
|
||||
prettyTerm xs (B i _) = prettyTBind $ xs !!! i
|
||||
prettyTerm xs (Lam x body _) =
|
||||
parensIfM Outer =<< do
|
||||
header <- hsep <$> sequence [lamD, prettyTBind x, darrowD]
|
||||
body <- withPrec Outer $ prettyTerm (xs :< x) body
|
||||
hangDSingle header body
|
||||
prettyTerm xs (App fun arg _) = prettyApp xs fun arg
|
||||
prettyTerm xs (Pair fst snd _) =
|
||||
parens =<< separateTight !commaD <$>
|
||||
sequence {t = List} [prettyTerm xs fst, prettyTerm xs snd]
|
||||
prettyTerm xs (Fst pair _) = prettyApp' xs !fstD pair
|
||||
prettyTerm xs (Snd pair _) = prettyApp' xs !sndD pair
|
||||
prettyTerm xs (Tag tag _) = prettyTag tag
|
||||
prettyTerm xs (CaseEnum tag cases _) = assert_total
|
||||
prettyCase xs prettyTag tag $ map (mapSnd $ caseArm []) cases
|
||||
prettyTerm xs (Absurd _) = hl Syntax "absurd"
|
||||
prettyTerm xs (Zero _) = zeroD
|
||||
prettyTerm xs (Succ nat _) = prettyApp' xs !succD nat
|
||||
prettyTerm xs (CaseNat nat zer x ih suc _) = assert_total
|
||||
prettyCase xs pure nat
|
||||
[(!zeroD, caseArm [] zer),
|
||||
(!sucPat, caseArm [x, ih] suc)]
|
||||
where
|
||||
sucPat = separateTight {t = List} !commaD <$>
|
||||
sequence [[|succD <++> prettyTBind x|], prettyTBind ih]
|
||||
prettyTerm _ (Erased _) =
|
||||
hl Syntax =<< ifUnicode "⌷" "[]"
|
||||
|
||||
export
|
||||
prettyDef : Name -> Definition -> Eff Pretty (Maybe (Doc opts))
|
||||
prettyDef _ ErasedDef = [|Nothing|]
|
||||
prettyDef name (KeptDef rhs) = map Just $ do
|
||||
name <- prettyFree name
|
||||
eq <- cstD
|
||||
rhs <- prettyTerm [<] rhs
|
||||
hangDSingle (name <++> eq) rhs
|
||||
export
|
||||
prettyDef : {opts : LayoutOpts} -> Name ->
|
||||
Definition -> Eff Pretty (Maybe (Doc opts))
|
||||
prettyDef _ ErasedDef = [|Nothing|]
|
||||
prettyDef name (KeptDef rhs) = map Just $ do
|
||||
name <- prettyFree name
|
||||
eq <- cstD
|
||||
rhs <- prettyTerm [<] rhs
|
||||
hangDSingle (name <++> eq) rhs
|
||||
|
||||
|
||||
public export
|
||||
|
|
|
|||
Loading…
Reference in New Issue