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use the syntax <x : A> in PGF.Expr for typed expressions. This is consistent with the GF language

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This commit is contained in:
krasimir
2009-09-19 10:16:37 +00:00
parent 2bb3229a84
commit fd63cdaeed
4 changed files with 37 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/PGF/Expr.hs
+12 -13
View File
@@ -127,28 +127,27 @@ unDouble (ELit (LFlt f)) = Just f
-----------------------------------------------------
pExpr :: RP.ReadP Expr
pExpr = pExpr0 >>= optTyped
pExpr = RP.skipSpaces >> (pAbs RP.<++ pTerm)
where
pExpr0 = RP.skipSpaces >> (pAbs RP.<++ pTerm)
pTerm = fmap (foldl1 EApp) (RP.sepBy1 pFactor RP.skipSpaces)
pAbs = do xs <- RP.between (RP.char '\\') (RP.skipSpaces >> RP.string "->") (RP.sepBy1 (RP.skipSpaces >> pCId) (RP.skipSpaces >> RP.char ','))
e <- pExpr0
e <- pExpr
return (foldr EAbs e xs)
optTyped e = do RP.skipSpaces
RP.char ':'
RP.skipSpaces
ty <- pType
return (ETyped e ty)
RP.<++
return e
pFactor = fmap EFun pCId
RP.<++ fmap ELit pLit
RP.<++ fmap EMeta pMeta
RP.<++ RP.between (RP.char '(') (RP.char ')') pExpr
RP.<++ RP.between (RP.char '<') (RP.char '>') pTyped
pTyped = do RP.skipSpaces
e <- pExpr
RP.skipSpaces
RP.char ':'
RP.skipSpaces
ty <- pType
return (ETyped e ty)
pMeta = do RP.char '?'
return 0
@@ -184,7 +183,7 @@ ppExpr d scope (ELit l) = ppLit l
ppExpr d scope (EMeta n) = ppMeta n
ppExpr d scope (EFun f) = ppCId f
ppExpr d scope (EVar i) = ppCId (scope !! i)
ppExpr d scope (ETyped e ty)= ppParens (d > 0) (ppExpr 0 scope e PP.<+> PP.colon PP.<+> ppType 0 scope ty)
ppExpr d scope (ETyped e ty)= PP.char '<' PP.<> ppExpr 0 scope e PP.<+> PP.colon PP.<+> ppType 0 scope ty PP.<> PP.char '>'
ppPatt :: Int -> [CId] -> Patt -> ([CId],PP.Doc)
ppPatt d scope (PApp f ps) = let (scope',ds) = mapAccumL (ppPatt 2) scope ps
testsuite/runtime/eval/eval.gfs
+12 -12
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@@ -1,28 +1,28 @@
i -src testsuite/runtime/eval/Test.gf
pt -compute \x -> x 1 : (Int->Int)->Int
pt -compute (? : Int -> Int) 1
pt -compute (\x -> x 1 : (Int->Int)->Int) ?
pt -compute <\x -> x 1 : (Int->Int)->Int>
pt -compute <? : Int -> Int> 1
pt -compute <\x -> x 1 : (Int->Int)->Int> ?
pt -compute f 1 2
pt -compute \x -> x : Nat -> Nat
pt -compute ? : String
pt -compute <\x -> x : Nat -> Nat>
pt -compute <? : String>
pt -compute f
pt -compute (\x -> x 2 : (Int->Int)->Int) (f 1)
pt -compute <\x -> x 2 : (Int->Int)->Int> (f 1)
pt -compute g 1
pt -compute g 0
pt -compute \x -> g x : Int -> Int
pt -compute <\x -> g x : Int -> Int>
pt -compute g ?
pt -compute (\x -> x 5 : (Int->Int)->Int) (g2 1)
pt -compute (\x -> x 3 : (Int->Int)->Int) (\x -> x)
pt -compute <\x -> x 5 : (Int->Int)->Int> (g2 1)
pt -compute <\x -> x 3 : (Int->Int)->Int> (\x -> x)
pt -compute g0
pt -compute (\x -> x 32 : (Int -> Int -> Int) -> Int -> Int) (\x -> f x : Int -> Int -> Int)
pt -compute <\x -> x 32 : (Int -> Int -> Int) -> Int -> Int> <\x -> f x : Int -> Int -> Int>
pt -compute g0 23
pt -compute const 3.14 "pi"
pt -compute dec (succ (succ zero))
pt -compute dec (succ ?)
pt -compute \x -> dec x : Nat -> Nat
pt -compute <\x -> dec x : Nat -> Nat>
pt -compute dec ?
pt -compute (\f -> f 0 : (Int -> Int) -> Int) (g3 ?)
pt -compute <\f -> f 0 : (Int -> Int) -> Int> (g3 ?)
pt -compute g (g2 ? 0)
pt -compute plus (succ zero) (succ zero)
pt -compute dec2 0 (succ zero)
testsuite/runtime/typecheck/typecheck.gfs
+9 -9
View File
@@ -1,22 +1,22 @@
i -src testsuite/runtime/typecheck/Test.gf
ai succ "0"
ai succ : Int 0
ai <succ : Int 0>
ai 1 2
ai (\x -> x 2 : (Int->Int)->Int) 1
ai <\x -> x 2 : (Int->Int)->Int> 1
ai unknown_fun
ai 0 : unknown_cat
ai <0 : unknown_cat>
ai \x -> x
ai \x -> x : Int
ai <\x -> x : Int>
ai append (succ (succ zero)) (succ zero) (vector (succ (succ zero))) (vector (succ zero))
ai \m,n -> vector (plus m n) : (m,n : Nat) -> Vector (plus m n)
ai <\m,n -> vector (plus m n) : (m,n : Nat) -> Vector (plus m n)>
ai mkMorph (\x -> succ zero)
ai idMorph (mkMorph (\x -> x))
ai idMorph (mkMorph (\x -> succ zero))
ai append zero (succ zero) : Vector zero -> Vector (succ zero) -> Vector (succ zero)
ai \n,v1,n,v2 -> append ? ? v1 v2 : (n : Nat) -> Vector n -> (m : Nat) -> Vector m -> Vector (plus n m)
ai \n -> (\v1,v2 -> eqVector n v1 v2 : Vector ? -> Vector ? -> EQ) (vector ?) : (n : Nat) -> Vector n -> EQ
ai (\v1,v2 -> cmpVector ? v1 v2 : Vector ? -> Vector ? -> Int) (vector ?)
ai <append zero (succ zero) : Vector zero -> Vector (succ zero) -> Vector (succ zero)>
ai <\n,v1,n,v2 -> append ? ? v1 v2 : (n : Nat) -> Vector n -> (m : Nat) -> Vector m -> Vector (plus n m)>
ai <\n -> <\v1,v2 -> eqVector n v1 v2 : Vector ? -> Vector ? -> EQ> (vector ?) : (n : Nat) -> Vector n -> EQ>
ai <\v1,v2 -> cmpVector ? v1 v2 : Vector ? -> Vector ? -> Int> (vector ?)
ai f0 ? vector
ai f1 ? vector
ai f1 ? (\x -> vector (succ x))
testsuite/runtime/typecheck/typecheck.gfs.gold
+4 -32
View File
@@ -1,16 +1,9 @@
␍
Couldn't match expected type Nat␍
against inferred type String␍
In the expression: "0"␍
␍
␍
Category Int should have 0 argument(s), but has been given 1␍
In the type: Int 0␍
␍
␍
A function type is expected for the expression 1 instead of type Int␍
␍
␍
Couldn't match expected type Int -> Int␍
against inferred type Int␍
In the expression: 1␍
@@ -20,17 +13,12 @@ Function unknown_fun is not in scope
␍
␍
Category unknown_cat is not in scope␍
␍
␍
Cannot infer the type of expression \x -> x␍
␍
␍
A function type is expected for the expression \x -> x instead of type Int␍
␍
Expression: append (succ (succ zero)) (succ zero) (vector (succ (succ zero))) (vector (succ zero))␍
Type: Vector (plus (succ (succ zero)) (succ zero))␍
␍
Expression: \m, n -> vector (plus m n) : (m : Nat) -> (n : Nat) -> Vector (plus m n)␍
Expression: <\m, n -> vector (plus m n) : (m : Nat) -> (n : Nat) -> Vector (plus m n)>␍
Type: (m : Nat) -> (n : Nat) -> Vector (plus m n)␍
␍
Expression: mkMorph (\x -> succ zero)␍
@@ -39,64 +27,48 @@ Type: Morph (\x -> succ zero)
Expression: idMorph (mkMorph (\x -> x))␍
Type: Nat␍
␍
␍
Couldn't match expected type Morph (\x -> x)␍
against inferred type Morph (\x -> succ zero)␍
In the expression: mkMorph (\x -> succ zero)␍
␍
Expression: append zero (succ zero) : Vector zero -> Vector (succ zero) -> Vector (succ zero)␍
Expression: <append zero (succ zero) : Vector zero -> Vector (succ zero) -> Vector (succ zero)>␍
Type: Vector zero -> Vector (succ zero) -> Vector (succ zero)␍
␍
Expression: \n, v1, n'1, v2 -> append n n'1 v1 v2 : (n : Nat) -> Vector n -> (m : Nat) -> Vector m -> Vector (plus n m)␍
Expression: <\n, v1, n'1, v2 -> append n n'1 v1 v2 : (n : Nat) -> Vector n -> (m : Nat) -> Vector m -> Vector (plus n m)>␍
Type: (n : Nat) -> Vector n -> (m : Nat) -> Vector m -> Vector (plus n m)␍
␍
␍
Category EQ is not in scope␍
␍
Expression: (\v1, v2 -> cmpVector ?7 v1 v2 : Vector ?7 -> Vector ?7 -> Int) (vector ?7)␍
Expression: <\v1, v2 -> cmpVector ?7 v1 v2 : Vector ?7 -> Vector ?7 -> Int> (vector ?7)␍
Type: Vector ?7 -> Int␍
␍
␍
Couldn't match expected type (m : Nat) -> Vector ?1␍
against inferred type (n : Nat) -> Vector n␍
In the expression: vector␍
␍
Expression: f1 (\v -> v) vector␍
Type: Int␍
␍
Expression: f1 (\v -> succ v) (\x -> vector (succ x))␍
Type: Int␍
␍
␍
Couldn't match expected type Vector x␍
against inferred type Vector (succ x)␍
In the expression: vector (succ x)␍
␍
␍
Couldn't match expected type Vector n␍
against inferred type Vector (succ n)␍
In the expression: vector (succ n)␍
␍
Expression: h ?2 (u0 ?2)␍
Type: Int␍
␍
␍
Couldn't match expected type U ?2 ?2␍
against inferred type U ?2 (succ ?2)␍
In the expression: u1 ?2␍
␍
␍
Meta variable(s) ?11 should be resolved␍
in the expression: cmpVector (succ (succ zero)) (vector (succ (succ zero))) (append ?11 (succ zero) (vector ?11) (vector (succ zero)))␍
␍
Expression: diff (succ (succ (succ zero))) (succ (succ zero)) (vector (succ (succ (succ (succ (succ zero)))))) (vector (succ (succ (succ zero))))␍
Type: Vector (succ (succ zero))␍
␍
Couldn't match expected type Vector (plus (succ (succ (succ zero))) (succ (succ zero)))␍
against inferred type Vector (succ (succ (succ (succ zero))))␍
In the expression: vector (succ (succ (succ (succ zero))))␍
␍
Couldn't match expected type Vector ?1␍
against inferred type Vector zero␍
In the expression: vector zero␍
␍