diff options
Diffstat (limited to 'testsuite')
136 files changed, 1685 insertions, 1077 deletions
diff --git a/testsuite/tests/annotations/should_fail/annfail08.stderr b/testsuite/tests/annotations/should_fail/annfail08.stderr index a97ca4e2b5..7e9b112dca 100644 --- a/testsuite/tests/annotations/should_fail/annfail08.stderr +++ b/testsuite/tests/annotations/should_fail/annfail08.stderr @@ -1,15 +1,19 @@ -
-annfail08.hs:9:1:
- No instance for (Data.Data.Data (a0 -> a0))
- arising from an annotation
- Possible fix:
- add an instance declaration for (Data.Data.Data (a0 -> a0))
- In the expression: (id + 1)
- In the annotation: {-# ANN f (id + 1) #-}
-
-annfail08.hs:9:15:
- No instance for (Num (a0 -> a0))
- arising from a use of `+'
- Possible fix: add an instance declaration for (Num (a0 -> a0))
- In the expression: (id + 1)
- In the annotation: {-# ANN f (id + 1) #-}
+ +annfail08.hs:9:1: + No instance for (Data.Data.Data (a0 -> a0)) + arising from an annotation + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + Possible fix: + add an instance declaration for (Data.Data.Data (a0 -> a0)) + In the expression: (id + 1) + In the annotation: {-# ANN f (id + 1) #-} + +annfail08.hs:9:15: + No instance for (Num (a0 -> a0)) + arising from a use of `+' + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + Possible fix: add an instance declaration for (Num (a0 -> a0)) + In the expression: (id + 1) + In the annotation: {-# ANN f (id + 1) #-} diff --git a/testsuite/tests/annotations/should_fail/annfail10.stderr b/testsuite/tests/annotations/should_fail/annfail10.stderr index eac3002efa..33a4c16a9b 100644 --- a/testsuite/tests/annotations/should_fail/annfail10.stderr +++ b/testsuite/tests/annotations/should_fail/annfail10.stderr @@ -1,9 +1,16 @@ annfail10.hs:9:1: - Ambiguous type variable `a0' in the constraints: - (Data.Data.Data a0) arising from an annotation - at annfail10.hs:9:1-15 - (Num a0) arising from the literal `1' at annfail10.hs:9:11 - Probable fix: add a type signature that fixes these type variable(s) + No instance for (Data.Data.Data a0) + arising from an annotation + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: 1 + In the annotation: {-# ANN f 1 #-} + +annfail10.hs:9:11: + No instance for (Num a0) + arising from the literal `1' + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) In the expression: 1 In the annotation: {-# ANN f 1 #-} diff --git a/testsuite/tests/arrows/should_fail/T5380.stderr b/testsuite/tests/arrows/should_fail/T5380.stderr index 07b89eef84..c9df47cf6f 100644 --- a/testsuite/tests/arrows/should_fail/T5380.stderr +++ b/testsuite/tests/arrows/should_fail/T5380.stderr @@ -1,22 +1,24 @@ -
-T5380.hs:7:27:
- Couldn't match type `not_bool' with `Bool'
- `not_bool' is a rigid type variable bound by
- the type signature for
- testB :: not_bool -> (() -> ()) -> () -> not_unit
- at T5380.hs:7:1
- In the expression: b
- In the expression: proc () -> if b then f -< () else f -< ()
- In an equation for `testB':
- testB b f = proc () -> if b then f -< () else f -< ()
-
-T5380.hs:7:34:
- Couldn't match type `not_unit' with `()'
- `not_unit' is a rigid type variable bound by
- the type signature for
- testB :: not_bool -> (() -> ()) -> () -> not_unit
- at T5380.hs:7:1
- Expected type: () -> not_unit
- Actual type: () -> ()
- In the expression: f
- In the expression: proc () -> if b then f -< () else f -< ()
+ +T5380.hs:7:27: + Couldn't match expected type `not_bool' with actual type `Bool' + `not_bool' is a rigid type variable bound by + the type signature for + testB :: not_bool -> (() -> ()) -> () -> not_unit + at T5380.hs:7:1 + In the expression: b + In the expression: proc () -> if b then f -< () else f -< () + In an equation for `testB': + testB b f = proc () -> if b then f -< () else f -< () + +T5380.hs:7:34: + Couldn't match type `not_unit' with `()' + `not_unit' is a rigid type variable bound by + the type signature for + testB :: not_bool -> (() -> ()) -> () -> not_unit + at T5380.hs:7:1 + Expected type: () -> not_unit + Actual type: () -> () + In the expression: f + In the expression: proc () -> if b then f -< () else f -< () + In an equation for `testB': + testB b f = proc () -> if b then f -< () else f -< () diff --git a/testsuite/tests/deriving/should_fail/T5287.stderr b/testsuite/tests/deriving/should_fail/T5287.stderr index 4067522580..e95212f67e 100644 --- a/testsuite/tests/deriving/should_fail/T5287.stderr +++ b/testsuite/tests/deriving/should_fail/T5287.stderr @@ -1,7 +1,10 @@ -
-T5287.hs:6:29:
- Ambiguous type variable `oops' in the constraint:
- (A e oops)
- arising from the 'deriving' clause of a data type declaration
- Probable fix: use a 'standalone deriving' declaration instead
- When deriving the instance for (Read (E e))
+ +T5287.hs:6:29: + No instance for (A e oops) + arising from the 'deriving' clause of a data type declaration + The type variable `oops' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + Possible fix: + use a standalone 'deriving instance' declaration, + so you can specify the instance context yourself + When deriving the instance for (Read (E e)) diff --git a/testsuite/tests/gadt/T3169.stderr b/testsuite/tests/gadt/T3169.stderr index 878324caeb..c1ee5b5e2f 100644 --- a/testsuite/tests/gadt/T3169.stderr +++ b/testsuite/tests/gadt/T3169.stderr @@ -1,11 +1,28 @@ -
-T3169.hs:13:13:
- Couldn't match type `elt' with `Map b elt'
- `elt' is a rigid type variable bound by
- the type signature for
- lookup :: (a, b) -> Map (a, b) elt -> Maybe elt
- at T3169.hs:12:3
- Expected type: Maybe (Map b elt)
- Actual type: Maybe elt
- In the return type of a call of `lookup'
- In the expression: lookup a m :: Maybe (Map b elt)
+ +T3169.hs:13:13: + Could not deduce (elt ~ Map b elt) + from the context (Key a, Key b) + bound by the instance declaration at T3169.hs:10:10-36 + `elt' is a rigid type variable bound by + the type signature for + lookup :: (a, b) -> Map (a, b) elt -> Maybe elt + at T3169.hs:12:3 + Expected type: Maybe (Map b elt) + Actual type: Maybe elt + In the return type of a call of `lookup' + In the expression: lookup a m :: Maybe (Map b elt) + In the expression: + case lookup a m :: Maybe (Map b elt) of { + Just (m2 :: Map b elt) -> lookup b m2 :: Maybe elt } + +T3169.hs:13:22: + Could not deduce (Map a ~ MP a b) + from the context (Key a, Key b) + bound by the instance declaration at T3169.hs:10:10-36 + Expected type: Map a elt + Actual type: Map (a, b) elt + In the second argument of `lookup', namely `m' + In the expression: lookup a m :: Maybe (Map b elt) + In the expression: + case lookup a m :: Maybe (Map b elt) of { + Just (m2 :: Map b elt) -> lookup b m2 :: Maybe elt } diff --git a/testsuite/tests/gadt/rw.stderr b/testsuite/tests/gadt/rw.stderr index 4c0c0ce6cd..752d0fd8a3 100644 --- a/testsuite/tests/gadt/rw.stderr +++ b/testsuite/tests/gadt/rw.stderr @@ -1,19 +1,20 @@ -
-rw.hs:14:47:
- Couldn't match type `a' with `Int'
- `a' is a rigid type variable bound by
- the type signature for writeInt :: T a -> IORef a -> IO ()
- at rw.hs:13:1
- In the second argument of `writeIORef', namely `(1 :: Int)'
- In the expression: writeIORef ref (1 :: Int)
- In a case alternative: ~(Li x) -> writeIORef ref (1 :: Int)
-
-rw.hs:19:51:
- Couldn't match type `a' with `Bool'
- `a' is a rigid type variable bound by
- the type signature for readBool :: T a -> IORef a -> IO ()
- at rw.hs:17:1
- Expected type: a -> Bool
- Actual type: Bool -> Bool
- In the second argument of `(.)', namely `not'
- In the second argument of `(>>=)', namely `(print . not)'
+ +rw.hs:14:47: + Couldn't match expected type `a' with actual type `Int' + `a' is a rigid type variable bound by + the type signature for writeInt :: T a -> IORef a -> IO () + at rw.hs:13:1 + In the second argument of `writeIORef', namely `(1 :: Int)' + In the expression: writeIORef ref (1 :: Int) + In a case alternative: ~(Li x) -> writeIORef ref (1 :: Int) + +rw.hs:19:51: + Couldn't match type `a' with `Bool' + `a' is a rigid type variable bound by + the type signature for readBool :: T a -> IORef a -> IO () + at rw.hs:17:1 + Expected type: a -> Bool + Actual type: Bool -> Bool + In the second argument of `(.)', namely `not' + In the second argument of `(>>=)', namely `(print . not)' + In the expression: readIORef ref >>= (print . not) diff --git a/testsuite/tests/ghci.debugger/scripts/break003.stderr b/testsuite/tests/ghci.debugger/scripts/break003.stderr index f5944094e7..58f1b68f78 100644 --- a/testsuite/tests/ghci.debugger/scripts/break003.stderr +++ b/testsuite/tests/ghci.debugger/scripts/break003.stderr @@ -2,5 +2,7 @@ <interactive>:5:1: No instance for (Show (t -> a)) arising from a use of `print' + Cannot resolve unknown runtime types `t', `a' + Use :print or :force to determine these types Possible fix: add an instance declaration for (Show (t -> a)) In a stmt of an interactive GHCi command: print it diff --git a/testsuite/tests/ghci.debugger/scripts/break006.stderr b/testsuite/tests/ghci.debugger/scripts/break006.stderr index 40bb7861e0..7ee08988ab 100644 --- a/testsuite/tests/ghci.debugger/scripts/break006.stderr +++ b/testsuite/tests/ghci.debugger/scripts/break006.stderr @@ -1,14 +1,14 @@ <interactive>:6:1: - Ambiguous type variable `a' in the constraint: - (Show a) arising from a use of `print' - Cannot resolve unknown runtime types: a + No instance for (Show a) + arising from a use of `print' + Cannot resolve unknown runtime type `a' Use :print or :force to determine these types In a stmt of an interactive GHCi command: print it <interactive>:8:1: - Ambiguous type variable `a' in the constraint: - (Show a) arising from a use of `print' - Cannot resolve unknown runtime types: a + No instance for (Show a) + arising from a use of `print' + Cannot resolve unknown runtime type `a' Use :print or :force to determine these types In a stmt of an interactive GHCi command: print it diff --git a/testsuite/tests/ghci.debugger/scripts/break018.stderr b/testsuite/tests/ghci.debugger/scripts/break018.stderr index 0107b5880f..d0bb1e0d0a 100644 --- a/testsuite/tests/ghci.debugger/scripts/break018.stderr +++ b/testsuite/tests/ghci.debugger/scripts/break018.stderr @@ -1,3 +1,3 @@ -
-<no location info>:
- Warning: -XRecursiveDo is deprecated: use -XDoRec or pragma {-# LANGUAGE DoRec #-} instead
+ +<no location info>: Warning: + -XRecursiveDo is deprecated: use -XDoRec or pragma {-# LANGUAGE DoRec #-} instead diff --git a/testsuite/tests/ghci.debugger/scripts/dynbrk004.stderr b/testsuite/tests/ghci.debugger/scripts/dynbrk004.stderr index 0107b5880f..d0bb1e0d0a 100644 --- a/testsuite/tests/ghci.debugger/scripts/dynbrk004.stderr +++ b/testsuite/tests/ghci.debugger/scripts/dynbrk004.stderr @@ -1,3 +1,3 @@ -
-<no location info>:
- Warning: -XRecursiveDo is deprecated: use -XDoRec or pragma {-# LANGUAGE DoRec #-} instead
+ +<no location info>: Warning: + -XRecursiveDo is deprecated: use -XDoRec or pragma {-# LANGUAGE DoRec #-} instead diff --git a/testsuite/tests/ghci.debugger/scripts/print006.stdout b/testsuite/tests/ghci.debugger/scripts/print006.stdout index 1cf7de8a8e..72a0328b2f 100644 --- a/testsuite/tests/ghci.debugger/scripts/print006.stdout +++ b/testsuite/tests/ghci.debugger/scripts/print006.stdout @@ -2,7 +2,7 @@ t = O (_t1::a) () t = O ((_t2::a1) : (_t3::[a1])) () -t = O ((_t4::a2) : (_t5::a2) : (_t6::[a2])) +t = O ((_t4::a1) : (_t5::a1) : (_t6::[a1])) () t = O ((_t7::Maybe [Integer]) : Just [2,2] : (_t8::[Maybe [Integer]])) diff --git a/testsuite/tests/ghci.debugger/scripts/print007.stderr b/testsuite/tests/ghci.debugger/scripts/print007.stderr index 713c629818..d298a59365 100644 --- a/testsuite/tests/ghci.debugger/scripts/print007.stderr +++ b/testsuite/tests/ghci.debugger/scripts/print007.stderr @@ -1,3 +1,3 @@ -<no location info>: - Warning: -O conflicts with --interactive; -O ignored. +<no location info>: Warning: + -O conflicts with --interactive; -O ignored. diff --git a/testsuite/tests/ghci.debugger/scripts/print019.stderr b/testsuite/tests/ghci.debugger/scripts/print019.stderr index 5cc34662fe..e272ce9e1f 100644 --- a/testsuite/tests/ghci.debugger/scripts/print019.stderr +++ b/testsuite/tests/ghci.debugger/scripts/print019.stderr @@ -1,7 +1,7 @@ <interactive>:11:1: - Ambiguous type variable `a1' in the constraint: - (Show a1) arising from a use of `print' - Cannot resolve unknown runtime types: a1 + No instance for (Show a1) + arising from a use of `print' + Cannot resolve unknown runtime type `a1' Use :print or :force to determine these types In a stmt of an interactive GHCi command: print it diff --git a/testsuite/tests/ghci/scripts/Defer02.script b/testsuite/tests/ghci/scripts/Defer02.script new file mode 100755 index 0000000000..3fc6aff5b0 --- /dev/null +++ b/testsuite/tests/ghci/scripts/Defer02.script @@ -0,0 +1,14 @@ +-- Test -fwarn-type-errors +-- This test shows how each error is printed at runtime +:l ../../typecheck/should_run/Defer01 +t5624 +print a +print (b B) +print (c (C2 True)) +print (d ()) +print f +print (h ()) +print (i ()) +print j +print (k 2) +l
\ No newline at end of file diff --git a/testsuite/tests/ghci/scripts/Defer02.stderr b/testsuite/tests/ghci/scripts/Defer02.stderr new file mode 100644 index 0000000000..4a17b34d19 --- /dev/null +++ b/testsuite/tests/ghci/scripts/Defer02.stderr @@ -0,0 +1,92 @@ + +../../typecheck/should_run/Defer01.hs:11:40: Warning: + Couldn't match type `Char' with `[Char]' + Expected type: String + Actual type: Char + In the first argument of `putStr', namely ',' + In the second argument of `(>>)', namely putStr ',' + In the expression: putStr "Hello World" >> putStr ',' + +../../typecheck/should_run/Defer01.hs:14:5: Warning: + Couldn't match expected type `Int' with actual type `Char' + In the expression: 'p' + In an equation for `a': a = 'p' + +../../typecheck/should_run/Defer01.hs:18:9: Warning: + No instance for (Eq B) + arising from a use of `==' + Possible fix: add an instance declaration for (Eq B) + In the expression: x == x + In an equation for `b': b x = x == x + +../../typecheck/should_run/Defer01.hs:28:5: Warning: + No instance for (Num (a -> a)) + arising from the literal `1' + Possible fix: add an instance declaration for (Num (a -> a)) + In the expression: 1 + In an equation for `d': d = 1 + +../../typecheck/should_run/Defer01.hs:31:5: Warning: + Couldn't match expected type `Char -> t' with actual type `Char' + The function `e' is applied to one argument, + but its type `Char' has none + In the expression: e 'q' + In an equation for `f': f = e 'q' + +../../typecheck/should_run/Defer01.hs:34:8: Warning: + Couldn't match expected type `a' with actual type `Char' + `a' is a rigid type variable bound by + the type signature for h :: a -> (Char, Char) + at ../../typecheck/should_run/Defer01.hs:34:1 + In the expression: x + In the expression: (x, 'c') + In an equation for `h': h x = (x, 'c') + +../../typecheck/should_run/Defer01.hs:39:17: Warning: + Couldn't match expected type `Bool' with actual type `T a' + In the return type of a call of `K' + In the first argument of `not', namely `(K a)' + In the first argument of `seq', namely `(not (K a))' + +../../typecheck/should_run/Defer01.hs:43:5: Warning: + No instance for (MyClass a1) + arising from a use of `myOp' + The type variable `a1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: myOp 23 + In an equation for `j': j = myOp 23 + +../../typecheck/should_run/Defer01.hs:43:10: Warning: + No instance for (Num a1) + arising from the literal `23' + The type variable `a1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the first argument of `myOp', namely `23' + In the expression: myOp 23 + In an equation for `j': j = myOp 23 + +../../typecheck/should_run/Defer01.hs:46:7: Warning: + Couldn't match expected type `Bool' with actual type `Int' + In the expression: x + In an equation for `k': k x = x + +../../typecheck/should_run/Defer01.hs:49:5: Warning: + Couldn't match expected type `IO a0' + with actual type `Char -> IO ()' + In the first argument of `(>>)', namely `putChar' + In the expression: putChar >> putChar 'p' + In an equation for `l': l = putChar >> putChar 'p' + +<interactive>:8:11: + Couldn't match type `Bool' with `Int' + Expected type: C Int + Actual type: C Bool + In the return type of a call of `C2' + In the first argument of `c', namely `(C2 True)' + In the first argument of `print', namely `(c (C2 True))' + +<interactive>:14:8: + Couldn't match expected type `Bool' with actual type `Int' + In the first argument of `print', namely `(k 2)' + In the expression: print (k 2) + In an equation for `it': it = print (k 2) diff --git a/testsuite/tests/ghci/scripts/T3263.stderr b/testsuite/tests/ghci/scripts/T3263.stderr index a7924e4b7f..b8c47887e4 100644 --- a/testsuite/tests/ghci/scripts/T3263.stderr +++ b/testsuite/tests/ghci/scripts/T3263.stderr @@ -1,5 +1,5 @@ -T3263.hs:8:12: - Warning: A do-notation statement discarded a result of type Char. - Suppress this warning by saying "_ <- getChar", - or by using the flag -fno-warn-unused-do-bind +T3263.hs:8:12: Warning: + A do-notation statement discarded a result of type Char. + Suppress this warning by saying "_ <- getChar", + or by using the flag -fno-warn-unused-do-bind diff --git a/testsuite/tests/ghci/scripts/T5130.stderr b/testsuite/tests/ghci/scripts/T5130.stderr index b68777e594..3c31593991 100644 --- a/testsuite/tests/ghci/scripts/T5130.stderr +++ b/testsuite/tests/ghci/scripts/T5130.stderr @@ -1,6 +1,6 @@ <interactive>:3:27: - Couldn't match type `a' with `[Char]' + Couldn't match expected type `a' with actual type `[Char]' In the expression: "hi" In the expression: [x, "hi"] In the expression: (\ (x :: a, y :: a) -> [x, "hi"]) diff --git a/testsuite/tests/ghci/scripts/all.T b/testsuite/tests/ghci/scripts/all.T index d8c1501915..b559dcf099 100644..100755 --- a/testsuite/tests/ghci/scripts/all.T +++ b/testsuite/tests/ghci/scripts/all.T @@ -108,3 +108,4 @@ test('T5557', normal, ghci_script, ['T5557.script']) test('T5566', normal, ghci_script, ['T5566.script']) test('GhciKinds', normal, ghci_script, ['GhciKinds.script']) test('T5564', normal, ghci_script, ['T5564.script']) +test('Defer02', normal, ghci_script, ['Defer02.script'])
\ No newline at end of file diff --git a/testsuite/tests/ghci/scripts/ghci031.stderr b/testsuite/tests/ghci/scripts/ghci031.stderr index 8e4256c7f4..6f72f603e1 100644 --- a/testsuite/tests/ghci/scripts/ghci031.stderr +++ b/testsuite/tests/ghci/scripts/ghci031.stderr @@ -1,3 +1,3 @@ -ghci031.hs:1:14: - Warning: -XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language. +ghci031.hs:1:14: Warning: + -XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language. diff --git a/testsuite/tests/ghci/scripts/ghci047.stderr b/testsuite/tests/ghci/scripts/ghci047.stderr index 1807dcb866..0051710378 100644 --- a/testsuite/tests/ghci/scripts/ghci047.stderr +++ b/testsuite/tests/ghci/scripts/ghci047.stderr @@ -1,12 +1,16 @@ <interactive>:38:1: Couldn't match type `HFalse' with `HTrue' + Expected type: HTrue + Actual type: Or HFalse HFalse In the expression: f In the expression: f $ Baz 'a' In an equation for `it': it = f $ Baz 'a' <interactive>:39:1: Couldn't match type `HFalse' with `HTrue' + Expected type: HTrue + Actual type: Or HFalse HFalse In the expression: f In the expression: f $ Quz In an equation for `it': it = f $ Quz diff --git a/testsuite/tests/ghci/scripts/ghci050.stderr b/testsuite/tests/ghci/scripts/ghci050.stderr index 6f0e2c2ff2..74dc9a9b94 100644 --- a/testsuite/tests/ghci/scripts/ghci050.stderr +++ b/testsuite/tests/ghci/scripts/ghci050.stderr @@ -1,8 +1,9 @@ -
-<interactive>:6:49:
- Couldn't match type `a' with `ListableElem (a, a)'
- `a' is a rigid type variable bound by
- the instance declaration at <interactive>:6:20
- In the expression: a
- In the expression: [a, b]
- In an equation for `asList': asList (a, b) = [a, b]
+ +<interactive>:6:49: + Couldn't match expected type `a' + with actual type `ListableElem (a, a)' + `a' is a rigid type variable bound by + the instance declaration at <interactive>:6:20 + In the expression: a + In the expression: [a, b] + In an equation for `asList': asList (a, b) = [a, b] diff --git a/testsuite/tests/ghci/scripts/ghci051.stderr b/testsuite/tests/ghci/scripts/ghci051.stderr index 3a78849813..130d0012a2 100644 --- a/testsuite/tests/ghci/scripts/ghci051.stderr +++ b/testsuite/tests/ghci/scripts/ghci051.stderr @@ -1,5 +1,7 @@ <interactive>:7:9: - Couldn't match expected type T' with actual type `T' + Couldn't match type `T' with `main::Interactive.T' + Expected type: T' + Actual type: T In the expression: C :: T' In an equation for `c': c = C :: T' diff --git a/testsuite/tests/indexed-types/should_compile/Simple14.stderr b/testsuite/tests/indexed-types/should_compile/Simple14.stderr index a5250d556f..c86fffe2fe 100644 --- a/testsuite/tests/indexed-types/should_compile/Simple14.stderr +++ b/testsuite/tests/indexed-types/should_compile/Simple14.stderr @@ -8,6 +8,8 @@ Simple14.hs:17:12: `n' is a rigid type variable bound by the type signature for foo :: EQ_ (Maybe m) (Maybe n) at Simple14.hs:17:1 + Expected type: EQ_ z0 z0 + Actual type: EQ_ m n In the second argument of `eqE', namely `(eqI :: EQ_ m n)' In the first argument of `ntI', namely `(`eqE` (eqI :: EQ_ m n))' In the expression: ntI (`eqE` (eqI :: EQ_ m n)) diff --git a/testsuite/tests/indexed-types/should_compile/T3208b.stderr b/testsuite/tests/indexed-types/should_compile/T3208b.stderr index 2256e610e3..f8c8db4bcc 100644 --- a/testsuite/tests/indexed-types/should_compile/T3208b.stderr +++ b/testsuite/tests/indexed-types/should_compile/T3208b.stderr @@ -6,17 +6,21 @@ T3208b.hs:15:10: fce' :: (OTerm a ~ STerm a, OBJECT a, SUBST a) => a -> c at T3208b.hs:15:1-22 NB: `STerm' is a type function, and may not be injective + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Expected type: STerm a0 Actual type: OTerm a0 In the expression: fce (apply f) In an equation for fce': fce' f = fce (apply f) T3208b.hs:15:15: - Could not deduce (OTerm a0 ~ STerm a) + Could not deduce (STerm a ~ OTerm a0) from the context (OTerm a ~ STerm a, OBJECT a, SUBST a) bound by the type signature for fce' :: (OTerm a ~ STerm a, OBJECT a, SUBST a) => a -> c at T3208b.hs:15:1-22 + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) In the first argument of `fce', namely `(apply f)' In the expression: fce (apply f) In an equation for fce': fce' f = fce (apply f) diff --git a/testsuite/tests/indexed-types/should_fail/GADTwrong1.stderr b/testsuite/tests/indexed-types/should_fail/GADTwrong1.stderr index e565aa6cde..6ec39c3daf 100644 --- a/testsuite/tests/indexed-types/should_fail/GADTwrong1.stderr +++ b/testsuite/tests/indexed-types/should_fail/GADTwrong1.stderr @@ -1,18 +1,18 @@ GADTwrong1.hs:12:19: - Could not deduce (a1 ~ b) + Could not deduce (b ~ a1) from the context (() ~ Const a1) bound by a pattern with constructor T :: forall a. a -> T (Const a), in a case alternative at GADTwrong1.hs:12:12-14 + `b' is a rigid type variable bound by + the type signature for coerce :: a -> b at GADTwrong1.hs:11:1 `a1' is a rigid type variable bound by a pattern with constructor T :: forall a. a -> T (Const a), in a case alternative at GADTwrong1.hs:12:12 - `b' is a rigid type variable bound by - the type signature for coerce :: a -> b at GADTwrong1.hs:11:1 In the expression: y In a case alternative: T y -> y In the expression: case T x :: T (Const b) of { T y -> y } diff --git a/testsuite/tests/indexed-types/should_fail/NoMatchErr.stderr b/testsuite/tests/indexed-types/should_fail/NoMatchErr.stderr index 713afea184..77d93e87ff 100644 --- a/testsuite/tests/indexed-types/should_fail/NoMatchErr.stderr +++ b/testsuite/tests/indexed-types/should_fail/NoMatchErr.stderr @@ -5,8 +5,8 @@ NoMatchErr.hs:20:5: bound by the type signature for f :: Fun d => Memo d a -> Memo d a at NoMatchErr.hs:20:1-15 NB: `Memo' is a type function, and may not be injective - Expected type: Memo d a - Actual type: Memo d0 a + The type variable `d0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Expected type: Memo d a -> Memo d a Actual type: Memo d0 a -> Memo d0 a In the expression: abst . appl diff --git a/testsuite/tests/indexed-types/should_fail/SimpleFail16.stderr b/testsuite/tests/indexed-types/should_fail/SimpleFail16.stderr index 0573e15aea..41812eacf1 100644 --- a/testsuite/tests/indexed-types/should_fail/SimpleFail16.stderr +++ b/testsuite/tests/indexed-types/should_fail/SimpleFail16.stderr @@ -1,6 +1,11 @@ - -SimpleFail16.hs:10:12: - Couldn't match type `F ()' with `p0 a0' - In the first argument of `foo', namely `(undefined :: F ())' - In the expression: foo (undefined :: F ()) - In an equation for `bar': bar = foo (undefined :: F ()) +
+SimpleFail16.hs:10:12:
+ Couldn't match expected type `p0 a0' with actual type `F ()'
+ The type variables `p0', `a0' are ambiguous
+ Possible cause: the monomorphism restriction applied to the following:
+ bar :: p0 a0 (bound at SimpleFail16.hs:10:1)
+ Probable fix: give these definition(s) an explicit type signature
+ or use -XNoMonomorphismRestriction
+ In the first argument of `foo', namely `(undefined :: F ())'
+ In the expression: foo (undefined :: F ())
+ In an equation for `bar': bar = foo (undefined :: F ())
diff --git a/testsuite/tests/indexed-types/should_fail/SimpleFail5b.stderr b/testsuite/tests/indexed-types/should_fail/SimpleFail5b.stderr index 34e7cab285..bd28918f15 100644 --- a/testsuite/tests/indexed-types/should_fail/SimpleFail5b.stderr +++ b/testsuite/tests/indexed-types/should_fail/SimpleFail5b.stderr @@ -1,6 +1,6 @@ SimpleFail5b.hs:31:12: - Couldn't match expected type `Int' with actual type `Char' + Couldn't match type `Char' with `Int' Expected type: S3 Int Actual type: S3 Char In the pattern: D3Char diff --git a/testsuite/tests/indexed-types/should_fail/T1897b.stderr b/testsuite/tests/indexed-types/should_fail/T1897b.stderr index f2f5250b0b..ff0667af2d 100644 --- a/testsuite/tests/indexed-types/should_fail/T1897b.stderr +++ b/testsuite/tests/indexed-types/should_fail/T1897b.stderr @@ -1,13 +1,15 @@ - -T1897b.hs:16:1: - Could not deduce (Depend a ~ Depend a0) - from the context (Bug a) - bound by the inferred type for `isValid': - Bug a => [Depend a] -> Bool - at T1897b.hs:16:1-41 - NB: `Depend' is a type function, and may not be injective - Expected type: [Depend a] -> Bool - Actual type: [Depend a0] -> Bool - When checking that `isValid' - has the inferred type `forall a1. Bug a1 => [Depend a1] -> Bool' - Probable cause: the inferred type is ambiguous +
+T1897b.hs:16:1:
+ Could not deduce (Depend a ~ Depend a0)
+ from the context (Bug a)
+ bound by the inferred type for `isValid':
+ Bug a => [Depend a] -> Bool
+ at T1897b.hs:16:1-41
+ NB: `Depend' is a type function, and may not be injective
+ The type variable `a0' is ambiguous
+ Possible fix: add a type signature that fixes these type variable(s)
+ Expected type: [Depend a] -> Bool
+ Actual type: [Depend a0] -> Bool
+ When checking that `isValid'
+ has the inferred type `forall a. Bug a => [Depend a] -> Bool'
+ Probable cause: the inferred type is ambiguous
diff --git a/testsuite/tests/indexed-types/should_fail/T1900.stderr b/testsuite/tests/indexed-types/should_fail/T1900.stderr index 8ea2bb97be..2044c6cab8 100644 --- a/testsuite/tests/indexed-types/should_fail/T1900.stderr +++ b/testsuite/tests/indexed-types/should_fail/T1900.stderr @@ -1,18 +1,20 @@ -
-T1900.hs:11:12:
- No instance for (Num ())
- arising from a use of `+'
- Possible fix: add an instance declaration for (Num ())
- In the expression: (+ 1)
- In an equation for `trans': trans = (+ 1)
- In the instance declaration for `Bug Int'
-
-T1900.hs:14:22:
- Could not deduce (Depend s0 ~ Depend s)
- from the context (Bug s)
- bound by the type signature for check :: Bug s => Depend s -> Bool
- at T1900.hs:14:1-22
- NB: `Depend' is a type function, and may not be injective
- In the first argument of `trans', namely `d'
- In the second argument of `(==)', namely `trans d'
- In the expression: d == trans d
+ +T1900.hs:11:12: + No instance for (Num ()) + arising from a use of `+' + Possible fix: add an instance declaration for (Num ()) + In the expression: (+ 1) + In an equation for `trans': trans = (+ 1) + In the instance declaration for `Bug Int' + +T1900.hs:14:22: + Could not deduce (Depend s0 ~ Depend s) + from the context (Bug s) + bound by the type signature for check :: Bug s => Depend s -> Bool + at T1900.hs:14:1-22 + NB: `Depend' is a type function, and may not be injective + The type variable `s0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the first argument of `trans', namely `d' + In the second argument of `(==)', namely `trans d' + In the expression: d == trans d diff --git a/testsuite/tests/indexed-types/should_fail/T2239.stderr b/testsuite/tests/indexed-types/should_fail/T2239.stderr index b8d5fc7a36..759ba2babd 100644 --- a/testsuite/tests/indexed-types/should_fail/T2239.stderr +++ b/testsuite/tests/indexed-types/should_fail/T2239.stderr @@ -1,10 +1,10 @@ T2239.hs:47:13: - Couldn't match expected type `b -> b' - with actual type `forall b1. MyEq b1 Bool => b1 -> b1' - Expected type: (forall b1. MyEq b1 Bool => b1 -> b1) -> b -> b - Actual type: (forall b1. MyEq b1 Bool => b1 -> b1) - -> forall b1. MyEq b1 Bool => b1 -> b1 + Couldn't match type `forall b1. MyEq b1 Bool => b1 -> b1' + with `b -> b' + Expected type: (forall b. MyEq b Bool => b -> b) -> b -> b + Actual type: (forall b. MyEq b Bool => b -> b) + -> forall b. MyEq b Bool => b -> b In the expression: id :: (forall b. MyEq b Bool => b -> b) @@ -16,11 +16,11 @@ T2239.hs:47:13: -> (forall b. MyEq b Bool => b -> b) T2239.hs:50:13: - Couldn't match expected type `b -> b' - with actual type `forall b1. b1 ~ Bool => b1 -> b1' - Expected type: (forall b1. b1 ~ Bool => b1 -> b1) -> b -> b - Actual type: (forall b1. b1 ~ Bool => b1 -> b1) - -> forall b1. b1 ~ Bool => b1 -> b1 + Couldn't match type `forall b1. b1 ~ Bool => b1 -> b1' + with `b -> b' + Expected type: (forall b. b ~ Bool => b -> b) -> b -> b + Actual type: (forall b. b ~ Bool => b -> b) + -> forall b. b ~ Bool => b -> b In the expression: id :: (forall b. b ~ Bool => b -> b) -> (forall b. b ~ Bool => b -> b) diff --git a/testsuite/tests/indexed-types/should_fail/T2544.stderr b/testsuite/tests/indexed-types/should_fail/T2544.stderr index cacd5a3610..b6bc222fa0 100644 --- a/testsuite/tests/indexed-types/should_fail/T2544.stderr +++ b/testsuite/tests/indexed-types/should_fail/T2544.stderr @@ -1,22 +1,13 @@ -
-T2544.hs:15:12:
- Could not deduce (IxMap r ~ IxMap i1)
- from the context (Ix l, Ix r)
- bound by the instance declaration at T2544.hs:13:10-37
- NB: `IxMap' is a type function, and may not be injective
- Expected type: IxMap (l :|: r) [Int]
- Actual type: BiApp (IxMap i0) (IxMap i1) [Int]
- In the return type of a call of `BiApp'
- In the expression: BiApp empty empty
- In an equation for `empty': empty = BiApp empty empty
-
-T2544.hs:15:12:
- Could not deduce (IxMap l ~ IxMap i0)
- from the context (Ix l, Ix r)
- bound by the instance declaration at T2544.hs:13:10-37
- NB: `IxMap' is a type function, and may not be injective
- Expected type: IxMap (l :|: r) [Int]
- Actual type: BiApp (IxMap i0) (IxMap i1) [Int]
- In the return type of a call of `BiApp'
- In the expression: BiApp empty empty
- In an equation for `empty': empty = BiApp empty empty
+ +T2544.hs:15:12: + Could not deduce (IxMap r ~ IxMap i1) + from the context (Ix l, Ix r) + bound by the instance declaration at T2544.hs:13:10-37 + NB: `IxMap' is a type function, and may not be injective + The type variable `i1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + Expected type: IxMap (l :|: r) [Int] + Actual type: BiApp (IxMap i0) (IxMap i1) [Int] + In the return type of a call of `BiApp' + In the expression: BiApp empty empty + In an equation for `empty': empty = BiApp empty empty diff --git a/testsuite/tests/indexed-types/should_fail/T2664.stderr b/testsuite/tests/indexed-types/should_fail/T2664.stderr index a4a1a24a85..2b5dd24660 100644 --- a/testsuite/tests/indexed-types/should_fail/T2664.stderr +++ b/testsuite/tests/indexed-types/should_fail/T2664.stderr @@ -1,18 +1,19 @@ -
-T2664.hs:31:33:
- Could not deduce (Dual b ~ Dual a)
- from the context (Connect a, Connect b)
- bound by the instance declaration at T2664.hs:22:10-52
- or from ((a :*: b) ~ Dual c, c ~ Dual (a :*: b))
- bound by the type signature for
- newPChan :: ((a :*: b) ~ Dual c, c ~ Dual (a :*: b)) =>
- IO (PChan (a :*: b), PChan c)
- at T2664.hs:(23,5)-(31,87)
- NB: `Dual' is a type function, and may not be injective
- Expected type: c
- Actual type: Dual b :+: Dual a
- Expected type: PChan c
- Actual type: PChan (Dual b :+: Dual a)
- In the return type of a call of `E'
- In the expression:
- E (pchoose Right v newPChan) (pchoose Left v newPChan)
+ +T2664.hs:31:33: + Could not deduce (Dual b ~ Dual a) + from the context (Connect a, Connect b) + bound by the instance declaration at T2664.hs:22:10-52 + or from ((a :*: b) ~ Dual c, c ~ Dual (a :*: b)) + bound by the type signature for + newPChan :: ((a :*: b) ~ Dual c, c ~ Dual (a :*: b)) => + IO (PChan (a :*: b), PChan c) + at T2664.hs:(23,5)-(31,87) + NB: `Dual' is a type function, and may not be injective + Expected type: PChan c + Actual type: PChan (Dual b :+: Dual a) + In the return type of a call of `E' + In the expression: + E (pchoose Right v newPChan) (pchoose Left v newPChan) + In the first argument of `return', namely + `(O $ takeMVar v, + E (pchoose Right v newPChan) (pchoose Left v newPChan))' diff --git a/testsuite/tests/indexed-types/should_fail/T2693.stderr b/testsuite/tests/indexed-types/should_fail/T2693.stderr index 9bbe1c3b3b..4894b895eb 100644 --- a/testsuite/tests/indexed-types/should_fail/T2693.stderr +++ b/testsuite/tests/indexed-types/should_fail/T2693.stderr @@ -1,33 +1,16 @@ - -T2693.hs:10:7: - Couldn't match type `TFn a' with `TFn a0' - NB: `TFn' is a type function, and may not be injective - When checking that `x' has the inferred type `forall a. TFn a' - Probable cause: the inferred type is ambiguous - In the expression: - do { let Just x = ...; - let n = fst x + fst x; - return () } - In an equation for `f': - f = do { let Just x = ...; - let n = ...; - return () } - -T2693.hs:18:15: - Couldn't match type `TFn a3' with `(a2, b0)' - In the first argument of `fst', namely `x' - In the first argument of `(+)', namely `fst x' - In the expression: fst x + snd x - -T2693.hs:18:23: - Couldn't match type `TFn a5' with `(a4, a2)' - In the first argument of `snd', namely `x' - In the second argument of `(+)', namely `snd x' - In the expression: fst x + snd x - -T2693.hs:28:20: - Couldn't match type `TFn a0' with `PVR a1' - Expected type: () -> Maybe (PVR a1) - Actual type: () -> Maybe (TFn a0) - In the first argument of `mapM', namely `g' - In a stmt of a 'do' block: pvs <- mapM g undefined +
+T2693.hs:10:7:
+ Couldn't match expected type `TFn a' with actual type `TFn a0'
+ NB: `TFn' is a type function, and may not be injective
+ The type variable `a0' is ambiguous
+ Possible fix: add a type signature that fixes these type variable(s)
+ When checking that `x' has the inferred type `forall a. TFn a'
+ Probable cause: the inferred type is ambiguous
+ In the expression:
+ do { let Just x = ...;
+ let n = fst x + fst x;
+ return () }
+ In an equation for `f':
+ f = do { let Just x = ...;
+ let n = ...;
+ return () }
diff --git a/testsuite/tests/indexed-types/should_fail/T3330a.hs b/testsuite/tests/indexed-types/should_fail/T3330a.hs index c09eb0fd5c..c13760c6ac 100644 --- a/testsuite/tests/indexed-types/should_fail/T3330a.hs +++ b/testsuite/tests/indexed-types/should_fail/T3330a.hs @@ -7,7 +7,9 @@ module T3330a where -import Control.Monad.Writer +newtype Writer w a = Writer { runWriter :: (a, w) } +execWriter :: Writer w a -> w +execWriter m = snd (runWriter m) data AnyF (s :: * -> *) = AnyF class HFunctor (f :: (* -> *) -> * -> *) diff --git a/testsuite/tests/indexed-types/should_fail/T3330a.stderr b/testsuite/tests/indexed-types/should_fail/T3330a.stderr index cafc6bcfac..d8b5d2606d 100644 --- a/testsuite/tests/indexed-types/should_fail/T3330a.stderr +++ b/testsuite/tests/indexed-types/should_fail/T3330a.stderr @@ -1,9 +1,22 @@ -T3330a.hs:17:34:
- Couldn't match type `s' with `(->) (s ix1 -> ix1)'
+T3330a.hs:19:34:
+ Couldn't match type `s' with `(->) (s0 ix1 -> ix1)'
`s' is a rigid type variable bound by
the type signature for children :: s ix -> PF s r ix -> [AnyF s]
- at T3330a.hs:17:1
+ at T3330a.hs:19:1
+ Expected type: (s0 ix0 -> ix1) -> r ix1 -> Writer [AnyF s] (r ix1)
+ Actual type: s ix
In the first argument of `hmapM', namely `p'
In the first argument of `execWriter', namely `(hmapM p collect x)'
In the expression: execWriter (hmapM p collect x)
+
+T3330a.hs:19:36:
+ Couldn't match type `ix' with `r ix0 -> Writer [AnyF s0] (r ix0)'
+ `ix' is a rigid type variable bound by
+ the type signature for children :: s ix -> PF s r ix -> [AnyF s]
+ at T3330a.hs:19:1
+ Expected type: s0 ix0 -> ix
+ Actual type: s0 ix0 -> r ix0 -> Writer [AnyF s0] (r ix0)
+ In the second argument of `hmapM', namely `collect'
+ In the first argument of `execWriter', namely `(hmapM p collect x)'
+ In the expression: execWriter (hmapM p collect x)
diff --git a/testsuite/tests/indexed-types/should_fail/T3330c.stderr b/testsuite/tests/indexed-types/should_fail/T3330c.stderr index b35db0dcdb..b9db62a887 100644 --- a/testsuite/tests/indexed-types/should_fail/T3330c.stderr +++ b/testsuite/tests/indexed-types/should_fail/T3330c.stderr @@ -1,17 +1,20 @@ -T3330c.hs:23:33: - Kind incompatibility when matching types: - f0 :: * -> * - f0 x :: * - In the return type of a call of `Inl' - In the expression: Inl (plug rf df x) - In an equation for plug': - plug' (RSum rf rg) (Inl df) x = Inl (plug rf df x) - T3330c.hs:23:43: - Couldn't match kind `*' with `* -> *' - Kind incompatibility when matching types: - Der ((->) x) :: * -> * - R :: (* -> *) -> * + Could not deduce (f1 ~ t0 x) + from the context (f ~ (f1 :+: g)) + bound by a pattern with constructor + RSum :: forall (f :: * -> *) (g :: * -> *). + R f -> R g -> R (f :+: g), + in an equation for plug' + at T3330c.hs:23:8-17 + `f1' is a rigid type variable bound by + a pattern with constructor + RSum :: forall (f :: * -> *) (g :: * -> *). + R f -> R g -> R (f :+: g), + in an equation for plug' + at T3330c.hs:23:8 + Expected type: Der ((->) x) (t0 x) + Actual type: R f1 In the first argument of `plug', namely `rf' In the first argument of `Inl', namely `(plug rf df x)' + In the expression: Inl (plug rf df x) diff --git a/testsuite/tests/indexed-types/should_fail/T3440.stderr b/testsuite/tests/indexed-types/should_fail/T3440.stderr index fe61b1da65..4e77eef70e 100644 --- a/testsuite/tests/indexed-types/should_fail/T3440.stderr +++ b/testsuite/tests/indexed-types/should_fail/T3440.stderr @@ -1,19 +1,19 @@ T3440.hs:11:22: - Could not deduce (a1 ~ a) + Could not deduce (a ~ a1) from the context (Fam a ~ Fam a1) bound by a pattern with constructor GADT :: forall a. a -> Fam a -> GADT (Fam a), in an equation for `unwrap' at T3440.hs:11:9-16 + `a' is a rigid type variable bound by + the type signature for unwrap :: GADT (Fam a) -> (a, Fam a) + at T3440.hs:11:1 `a1' is a rigid type variable bound by a pattern with constructor GADT :: forall a. a -> Fam a -> GADT (Fam a), in an equation for `unwrap' at T3440.hs:11:9 - `a' is a rigid type variable bound by - the type signature for unwrap :: GADT (Fam a) -> (a, Fam a) - at T3440.hs:11:1 In the expression: x In the expression: (x, y) In an equation for `unwrap': unwrap (GADT x y) = (x, y) diff --git a/testsuite/tests/indexed-types/should_fail/T4099.stderr b/testsuite/tests/indexed-types/should_fail/T4099.stderr index 926579de74..3512e321bd 100644 --- a/testsuite/tests/indexed-types/should_fail/T4099.stderr +++ b/testsuite/tests/indexed-types/should_fail/T4099.stderr @@ -1,13 +1,17 @@ -
-T4099.hs:11:14:
- Couldn't match type `T b' with `T a0'
- NB: `T' is a type function, and may not be injective
- In the first argument of `foo', namely `x'
- In the expression: foo x
- In an equation for `bar1': bar1 x = foo x
-
-T4099.hs:14:14:
- Couldn't match type `T a1' with `Maybe b'
- In the first argument of `foo', namely `x'
- In the expression: foo x
- In an equation for `bar2': bar2 x = foo x
+ +T4099.hs:11:14: + Couldn't match expected type `T a0' with actual type `T b' + NB: `T' is a type function, and may not be injective + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the first argument of `foo', namely `x' + In the expression: foo x + In an equation for `bar1': bar1 x = foo x + +T4099.hs:14:14: + Couldn't match expected type `T a1' with actual type `Maybe b' + The type variable `a1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the first argument of `foo', namely `x' + In the expression: foo x + In an equation for `bar2': bar2 x = foo x diff --git a/testsuite/tests/indexed-types/should_fail/T4174.stderr b/testsuite/tests/indexed-types/should_fail/T4174.stderr index 2a403786d9..81fb603dd8 100644 --- a/testsuite/tests/indexed-types/should_fail/T4174.stderr +++ b/testsuite/tests/indexed-types/should_fail/T4174.stderr @@ -1,5 +1,7 @@ T4174.hs:42:12: Couldn't match type `False' with `True' + Expected type: True + Actual type: GHCVersion (WayOf m) :>=: GHC6'10 Minor1 In the expression: sync_large_objects In an equation for `testcase': testcase = sync_large_objects diff --git a/testsuite/tests/indexed-types/should_fail/T4179.stderr b/testsuite/tests/indexed-types/should_fail/T4179.stderr index 1903d7caf3..021e73e413 100644 --- a/testsuite/tests/indexed-types/should_fail/T4179.stderr +++ b/testsuite/tests/indexed-types/should_fail/T4179.stderr @@ -1,24 +1,5 @@ T4179.hs:26:16: - Could not deduce (DoC (x (A2 (x (Con x)) -> A3 (x (Con x))))) - arising from a use of `op' - from the context (Functor x, DoC (FCon x)) - bound by the type signature for - fCon :: (Functor x, DoC (FCon x)) => - Con x -> A2 (FCon x) -> A3 (FCon x) - at T4179.hs:26:1-17 - Possible fix: - add (DoC (x (A2 (x (Con x)) -> A3 (x (Con x))))) to the context of - the type signature for - fCon :: (Functor x, DoC (FCon x)) => - Con x -> A2 (FCon x) -> A3 (FCon x) - or add an instance declaration for - (DoC (x (A2 (x (Con x)) -> A3 (x (Con x))))) - In the first argument of `foldDoC', namely `op' - In the expression: foldDoC op - In an equation for `fCon': fCon = foldDoC op - -T4179.hs:26:16: Could not deduce (A3 (x (A2 (x (Con x)) -> A3 (x (Con x)))) ~ A3 (x (Con x))) from the context (Functor x, DoC (FCon x)) @@ -27,29 +8,6 @@ T4179.hs:26:16: Con x -> A2 (FCon x) -> A3 (FCon x) at T4179.hs:26:1-17 NB: `A3' is a type function, and may not be injective - Expected type: A2 (x (Con x)) -> A3 (x (Con x)) - Actual type: A2 (x (A2 (x (Con x)) -> A3 (x (Con x)))) - -> A3 (x (A2 (x (Con x)) -> A3 (x (Con x)))) - Expected type: x (A2 (x (Con x)) -> A3 (x (Con x))) - -> A2 (x (Con x)) -> A3 (x (Con x)) - Actual type: x (A2 (x (Con x)) -> A3 (x (Con x))) - -> A2 (x (A2 (x (Con x)) -> A3 (x (Con x)))) - -> A3 (x (A2 (x (Con x)) -> A3 (x (Con x)))) - In the first argument of `foldDoC', namely `op' - In the expression: foldDoC op - -T4179.hs:26:16: - Could not deduce (A2 (x (A2 (x (Con x)) -> A3 (x (Con x)))) - ~ A2 (x (Con x))) - from the context (Functor x, DoC (FCon x)) - bound by the type signature for - fCon :: (Functor x, DoC (FCon x)) => - Con x -> A2 (FCon x) -> A3 (FCon x) - at T4179.hs:26:1-17 - NB: `A2' is a type function, and may not be injective - Expected type: A2 (x (Con x)) -> A3 (x (Con x)) - Actual type: A2 (x (A2 (x (Con x)) -> A3 (x (Con x)))) - -> A3 (x (A2 (x (Con x)) -> A3 (x (Con x)))) Expected type: x (A2 (x (Con x)) -> A3 (x (Con x))) -> A2 (x (Con x)) -> A3 (x (Con x)) Actual type: x (A2 (x (Con x)) -> A3 (x (Con x))) @@ -57,3 +15,4 @@ T4179.hs:26:16: -> A3 (x (A2 (x (Con x)) -> A3 (x (Con x)))) In the first argument of `foldDoC', namely `op' In the expression: foldDoC op + In an equation for `fCon': fCon = foldDoC op diff --git a/testsuite/tests/indexed-types/should_fail/T4272.hs b/testsuite/tests/indexed-types/should_fail/T4272.hs index 3370fc3637..d9fd6d9724 100644 --- a/testsuite/tests/indexed-types/should_fail/T4272.hs +++ b/testsuite/tests/indexed-types/should_fail/T4272.hs @@ -10,7 +10,7 @@ class Family (TermFamily a) => TermLike a where laws :: forall a b. TermLike a => TermFamily a a -> b laws t = prune t (terms (undefined :: TermFamily a a)) -prune :: TermLike a => TermFamily a a -> TermFamily a a -> b +prune :: TermLike x => TermFamily x x -> TermFamily x x -> b prune = undefined -- terms :: Family f => f a -> a diff --git a/testsuite/tests/indexed-types/should_fail/T4272.stderr b/testsuite/tests/indexed-types/should_fail/T4272.stderr index 5c6e38f0ae..0a6b3be8ff 100644 --- a/testsuite/tests/indexed-types/should_fail/T4272.stderr +++ b/testsuite/tests/indexed-types/should_fail/T4272.stderr @@ -1,8 +1,37 @@ -
-T4272.hs:11:16:
- Occurs check: cannot construct the infinite type:
- a0 = TermFamily a0 a0
- In the first argument of `prune', namely `t'
- In the expression: prune t (terms (undefined :: TermFamily a a))
- In an equation for `laws':
- laws t = prune t (terms (undefined :: TermFamily a a))
+ +T4272.hs:11:16: + Couldn't match type `TermFamily (TermFamily x0 x0)' + with `TermFamily x0' + NB: `TermFamily' is a type function, and may not be injective + The type variable `x0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + Expected type: TermFamily x0 x0 + Actual type: TermFamily a a + In the first argument of `prune', namely `t' + In the expression: prune t (terms (undefined :: TermFamily a a)) + In an equation for `laws': + laws t = prune t (terms (undefined :: TermFamily a a)) + +T4272.hs:11:16: + Occurs check: cannot construct the infinite type: + x0 = TermFamily x0 x0 + Expected type: TermFamily x0 x0 + Actual type: TermFamily a a + In the first argument of `prune', namely `t' + In the expression: prune t (terms (undefined :: TermFamily a a)) + In an equation for `laws': + laws t = prune t (terms (undefined :: TermFamily a a)) + +T4272.hs:11:19: + Could not deduce (a ~ TermFamily x0 x0) + from the context (TermLike a) + bound by the type signature for + laws :: TermLike a => TermFamily a a -> b + at T4272.hs:11:1-54 + `a' is a rigid type variable bound by + the type signature for laws :: TermLike a => TermFamily a a -> b + at T4272.hs:11:1 + In the return type of a call of `terms' + In the second argument of `prune', namely + `(terms (undefined :: TermFamily a a))' + In the expression: prune t (terms (undefined :: TermFamily a a)) diff --git a/testsuite/tests/indexed-types/should_fail/T4485.stderr b/testsuite/tests/indexed-types/should_fail/T4485.stderr index d8ebccb28a..21811da390 100644 --- a/testsuite/tests/indexed-types/should_fail/T4485.stderr +++ b/testsuite/tests/indexed-types/should_fail/T4485.stderr @@ -1,19 +1,29 @@ - -T4485.hs:47:15: - Overlapping instances for EmbedAsChild - (IdentityT IO) (XMLGenT m0 (XML m0)) - arising from a use of `asChild' - Matching instances: - instance [overlap ok] (EmbedAsChild m c, m1 ~ m) => - EmbedAsChild m (XMLGenT m1 c) - -- Defined at T4485.hs:29:10 - instance [overlap ok] EmbedAsChild - (IdentityT IO) (XMLGenT Identity ()) - -- Defined at T4485.hs:42:10 - (The choice depends on the instantiation of `m0' - To pick the first instance above, use -XIncoherentInstances - when compiling the other instance declarations) - In the expression: asChild - In the expression: asChild $ (genElement "foo") - In an equation for `asChild': - asChild b = asChild $ (genElement "foo") +
+T4485.hs:47:15:
+ Overlapping instances for EmbedAsChild
+ (IdentityT IO) (XMLGenT m0 (XML m0))
+ arising from a use of `asChild'
+ Matching instances:
+ instance [overlap ok] (EmbedAsChild m c, m1 ~ m) =>
+ EmbedAsChild m (XMLGenT m1 c)
+ -- Defined at T4485.hs:29:10
+ instance [overlap ok] EmbedAsChild
+ (IdentityT IO) (XMLGenT Identity ())
+ -- Defined at T4485.hs:42:10
+ (The choice depends on the instantiation of `m0'
+ To pick the first instance above, use -XIncoherentInstances
+ when compiling the other instance declarations)
+ In the expression: asChild
+ In the expression: asChild $ (genElement "foo")
+ In an equation for `asChild':
+ asChild b = asChild $ (genElement "foo")
+
+T4485.hs:47:26:
+ No instance for (XMLGen m0)
+ arising from a use of `genElement'
+ The type variable `m0' is ambiguous
+ Possible fix: add a type signature that fixes these type variable(s)
+ In the second argument of `($)', namely `(genElement "foo")'
+ In the expression: asChild $ (genElement "foo")
+ In an equation for `asChild':
+ asChild b = asChild $ (genElement "foo")
diff --git a/testsuite/tests/indexed-types/should_fail/T5439.stderr b/testsuite/tests/indexed-types/should_fail/T5439.stderr index 6f4a9c9c1e..4d8742c955 100644 --- a/testsuite/tests/indexed-types/should_fail/T5439.stderr +++ b/testsuite/tests/indexed-types/should_fail/T5439.stderr @@ -1,4 +1,14 @@ +T5439.hs:83:28: + Couldn't match type `Attempt (WaitOpResult (WaitOps rs))' + with `Attempt (HNth n0 l0) -> Attempt (HElemOf l0)' + Expected type: f (Attempt (HNth n0 l0) -> Attempt (HElemOf l0)) + Actual type: f (Attempt (WaitOpResult (WaitOps rs))) + In the first argument of `complete', namely `ev' + In the expression: complete ev + In a stmt of a 'do' block: + c <- complete ev $ inj $ Failure (e :: SomeException) + T5439.hs:83:39: Couldn't match expected type `Peano n0' with actual type `Attempt α0' diff --git a/testsuite/tests/indexed-types/should_fail/all.T b/testsuite/tests/indexed-types/should_fail/all.T index 4f0b077bdf..1f8f99ac23 100644 --- a/testsuite/tests/indexed-types/should_fail/all.T +++ b/testsuite/tests/indexed-types/should_fail/all.T @@ -56,7 +56,7 @@ test('T4272', normal, compile_fail, ['']) test('T4246', normal, compile_fail, ['']) test('T4093a', normal, compile_fail, ['']) test('T4093b', normal, compile_fail, ['']) -test('T3330a', reqlib('mtl'), compile_fail, ['']) +test('T3330a', normal, compile_fail, ['']) test('T3330b', normal, compile_fail, ['']) test('T3330c', normal, compile_fail, ['']) test('T4179', normal, compile_fail, ['']) @@ -72,4 +72,5 @@ test('T2544', normal, compile_fail, ['']) test('T1897b', normal, compile_fail, ['']) test('T5439', normal, compile_fail, ['']) test('T5515', normal, compile_fail, ['']) +test('T5763', expect_broken(5673), compile_fail, ['']) diff --git a/testsuite/tests/layout/layout001.stdout b/testsuite/tests/layout/layout001.stdout index be1cd62b20..4273843584 100644 --- a/testsuite/tests/layout/layout001.stdout +++ b/testsuite/tests/layout/layout001.stdout @@ -4,6 +4,6 @@ Running with -XAlternativeLayoutRule layout001.hs:6:3: parse error on input `where' Running with -XAlternativeLayoutRule -XAlternativeLayoutRuleTransitional -layout001.hs:6:3: +layout001.hs:6:3: Warning: transitional layout will not be accepted in the future: `where' clause at the same depth as implicit layout block diff --git a/testsuite/tests/layout/layout003.stdout b/testsuite/tests/layout/layout003.stdout index e40bac2077..1eb86386e3 100644 --- a/testsuite/tests/layout/layout003.stdout +++ b/testsuite/tests/layout/layout003.stdout @@ -4,6 +4,6 @@ Running with -XAlternativeLayoutRule layout003.hs:11:4: parse error on input `|' Running with -XAlternativeLayoutRule -XAlternativeLayoutRuleTransitional -layout003.hs:11:4: +layout003.hs:11:4: Warning: transitional layout will not be accepted in the future: `|' at the same depth as implicit layout block diff --git a/testsuite/tests/layout/layout006.stdout b/testsuite/tests/layout/layout006.stdout index ab33a6e1fe..84704ba1ab 100644 --- a/testsuite/tests/layout/layout006.stdout +++ b/testsuite/tests/layout/layout006.stdout @@ -4,6 +4,6 @@ Running with -XAlternativeLayoutRule layout006.hs:12:2: parse error on input `|' Running with -XAlternativeLayoutRule -XAlternativeLayoutRuleTransitional -layout006.hs:12:2: +layout006.hs:12:2: Warning: transitional layout will not be accepted in the future: `|' at the same depth as implicit layout block diff --git a/testsuite/tests/parser/should_compile/read064.stderr b/testsuite/tests/parser/should_compile/read064.stderr index 8ed04fc629..dfc662f422 100644 --- a/testsuite/tests/parser/should_compile/read064.stderr +++ b/testsuite/tests/parser/should_compile/read064.stderr @@ -1,2 +1,2 @@ -read064.hs:4:1: Unrecognised pragma +read064.hs:4:1: Warning: Unrecognised pragma diff --git a/testsuite/tests/parser/should_compile/read066.stderr b/testsuite/tests/parser/should_compile/read066.stderr index a094133754..3eca28b785 100644 --- a/testsuite/tests/parser/should_compile/read066.stderr +++ b/testsuite/tests/parser/should_compile/read066.stderr @@ -1,2 +1,2 @@ -read066.hs:2:1: Unrecognised pragma +read066.hs:2:1: Warning: Unrecognised pragma diff --git a/testsuite/tests/rebindable/DoParamM.stderr b/testsuite/tests/rebindable/DoParamM.stderr index 7c095445e1..09d2370737 100644 --- a/testsuite/tests/rebindable/DoParamM.stderr +++ b/testsuite/tests/rebindable/DoParamM.stderr @@ -6,20 +6,29 @@ DoParamM.hs:146:25: In a stmt of a 'do' block: return (v == v') DoParamM.hs:286:28: - Couldn't match expected type `Locked' with actual type `Unlocked' - Expected type: LIO Locked r0 b0 + Couldn't match type `Unlocked' with `Locked' + Expected type: LIO Locked Locked () Actual type: LIO Unlocked Locked () In a stmt of a 'do' block: tlock2_do In the expression: do { tlock2_do; tlock2_do } + In an equation for `tlock4_do': + tlock4_do + = do { tlock2_do; + tlock2_do } DoParamM.hs:302:37: - Couldn't match expected type `Unlocked' with actual type `Locked' - Expected type: LIO Unlocked r0 b0 + Couldn't match type `Locked' with `Unlocked' + Expected type: LIO Unlocked Unlocked () Actual type: LIO Locked Unlocked () In a stmt of a 'do' block: unlock In the expression: do { tlock2_do; unlock; unlock } + In an equation for `tlock4'_do': + tlock4'_do + = do { tlock2_do; + unlock; + unlock } diff --git a/testsuite/tests/rebindable/rebindable6.stderr b/testsuite/tests/rebindable/rebindable6.stderr index d451400514..d38e53dbff 100644 --- a/testsuite/tests/rebindable/rebindable6.stderr +++ b/testsuite/tests/rebindable/rebindable6.stderr @@ -2,6 +2,8 @@ rebindable6.hs:106:17: No instance for (HasSeq (IO a -> t0 -> IO b)) arising from a do statement + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Possible fix: add an instance declaration for (HasSeq (IO a -> t0 -> IO b)) In a stmt of a 'do' block: f @@ -16,27 +18,15 @@ rebindable6.hs:106:17: return b } rebindable6.hs:107:17: - No instance for (HasFail ([Prelude.Char] -> t1)) + No instances for (HasBind (IO (Maybe b) -> (Maybe b -> t1) -> t0), + HasFail ([Prelude.Char] -> t1)) arising from a do statement + The type variables `t0', `t1' are ambiguous + Possible fix: add a type signature that fixes these type variable(s) Possible fix: - add an instance declaration for (HasFail ([Prelude.Char] -> t1)) - In a stmt of a 'do' block: Just (b :: b) <- g - In the expression: - do { f; - Just (b :: b) <- g; - return b } - In an equation for `test_do': - test_do f g - = do { f; - Just (b :: b) <- g; - return b } - -rebindable6.hs:107:17: - No instance for (HasBind (IO (Maybe b) -> (Maybe b -> t1) -> t0)) - arising from a do statement - Possible fix: - add an instance declaration for - (HasBind (IO (Maybe b) -> (Maybe b -> t1) -> t0)) + add instance declarations for + (HasBind (IO (Maybe b) -> (Maybe b -> t1) -> t0), + HasFail ([Prelude.Char] -> t1)) In a stmt of a 'do' block: Just (b :: b) <- g In the expression: do { f; @@ -51,6 +41,8 @@ rebindable6.hs:107:17: rebindable6.hs:108:17: No instance for (HasReturn (b -> t1)) arising from a use of `return' + The type variable `t1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Possible fix: add an instance declaration for (HasReturn (b -> t1)) In a stmt of a 'do' block: return b In the expression: diff --git a/testsuite/tests/safeHaskell/safeLanguage/SafeLang03.stderr b/testsuite/tests/safeHaskell/safeLanguage/SafeLang03.stderr index fdcc5997d5..33a66e6267 100644 --- a/testsuite/tests/safeHaskell/safeLanguage/SafeLang03.stderr +++ b/testsuite/tests/safeHaskell/safeLanguage/SafeLang03.stderr @@ -1,4 +1,4 @@ -SafeLang03.hs:7:11: +SafeLang03.hs:7:11: Warning: Rule "f" ignored User defined rules are disabled under Safe Haskell diff --git a/testsuite/tests/simplCore/should_compile/simpl017.stderr b/testsuite/tests/simplCore/should_compile/simpl017.stderr index 325920fd57..497bc8b51a 100644 --- a/testsuite/tests/simplCore/should_compile/simpl017.stderr +++ b/testsuite/tests/simplCore/should_compile/simpl017.stderr @@ -1,20 +1,28 @@ -
-simpl017.hs:44:12:
- Couldn't match expected type `forall v. [E m i] -> E' v m a'
- with actual type `[E m i] -> E' v0 m a'
- In the first argument of `return', namely `f'
- In a stmt of a 'do' block: return f
- In the first argument of `E', namely
- `(do { let ix :: [E m i] -> m i
- ix [i] = runE i
- {-# INLINE f #-}
- ....;
- return f })'
-
-simpl017.hs:63:5:
- Couldn't match expected type `t0 -> t1'
- with actual type `forall v. [E m0 Int] -> E' v m0 Int'
- The function `a' is applied to one argument,
- but its type `forall v. [E m0 Int] -> E' v m0 Int' has none
- In the first argument of `plus', namely `a [one]'
- In a stmt of a 'do' block: a [one] `plus` a [one]
+ +simpl017.hs:44:12: + Couldn't match expected type `forall v. [E m i] -> E' v m a' + with actual type `[E m i] -> E' v0 m a' + In the first argument of `return', namely `f' + In a stmt of a 'do' block: return f + In the first argument of `E', namely + `(do { let ix :: [E m i] -> m i + ix [i] = runE i + {-# INLINE f #-} + ....; + return f })' + +simpl017.hs:63:5: + Couldn't match expected type `[E (ST t0) Int] -> E (ST s) Int' + with actual type `forall v. [E (ST s) Int] -> E' v (ST s) Int' + The function `a' is applied to one argument, + but its type `forall v. [E (ST s) Int] -> E' v (ST s) Int' has none + In the first argument of `plus', namely `a [one]' + In a stmt of a 'do' block: a [one] `plus` a [one] + +simpl017.hs:63:19: + Couldn't match expected type `[E (ST t1) Int] -> E (ST s) Int' + with actual type `forall v. [E (ST s) Int] -> E' v (ST s) Int' + The function `a' is applied to one argument, + but its type `forall v. [E (ST s) Int] -> E' v (ST s) Int' has none + In the second argument of `plus', namely `a [one]' + In a stmt of a 'do' block: a [one] `plus` a [one] diff --git a/testsuite/tests/th/T5358.stderr b/testsuite/tests/th/T5358.stderr index 4a1bfbd5fe..01f1ffa608 100644 --- a/testsuite/tests/th/T5358.stderr +++ b/testsuite/tests/th/T5358.stderr @@ -1,15 +1,24 @@ T5358.hs:7:1: + Couldn't match expected type `t1 -> t1' with actual type `Int' The equation(s) for `t1' have one argument, but its type `Int' has none T5358.hs:8:1: + Couldn't match expected type `t0 -> t0' with actual type `Int' The equation(s) for `t2' have one argument, but its type `Int' has none T5358.hs:10:13: + Couldn't match expected type `t0 -> a0' with actual type `Int' The function `t1' is applied to one argument, but its type `Int' has none In the first argument of `(==)', namely `t1 x' In the expression: t1 x == t2 x - In an equation for `prop_x1': prop_x1 x = t1 x == t2 x + +T5358.hs:10:21: + Couldn't match expected type `t0 -> a0' with actual type `Int' + The function `t2' is applied to one argument, + but its type `Int' has none + In the second argument of `(==)', namely `t2 x' + In the expression: t1 x == t2 x diff --git a/testsuite/tests/th/TH_reifyDecl1.hs b/testsuite/tests/th/TH_reifyDecl1.hs index 9c0880b2af..f2f5dd8b0e 100644 --- a/testsuite/tests/th/TH_reifyDecl1.hs +++ b/testsuite/tests/th/TH_reifyDecl1.hs @@ -3,6 +3,7 @@ {-# LANGUAGE TypeFamilies #-} module TH_reifyDecl1 where +import System.IO import Language.Haskell.TH import Text.PrettyPrint.HughesPJ @@ -62,7 +63,7 @@ data instance DF2 Bool = DBool test :: () test = $(let display :: Name -> Q () - display q = do { i <- reify q; report False (pprint i) } + display q = do { i <- reify q; runIO $ hPutStrLn stderr (pprint i) } in do { display ''T ; display ''R ; display ''List diff --git a/testsuite/tests/th/TH_reifyDecl1.stderr b/testsuite/tests/th/TH_reifyDecl1.stderr index 7f4ae8550f..82a4f572ce 100644 --- a/testsuite/tests/th/TH_reifyDecl1.stderr +++ b/testsuite/tests/th/TH_reifyDecl1.stderr @@ -1,67 +1,35 @@ - -TH_reifyDecl1.hs:63:10: - data TH_reifyDecl1.T = TH_reifyDecl1.A | TH_reifyDecl1.B - -TH_reifyDecl1.hs:63:10: - data TH_reifyDecl1.R a_0 = TH_reifyDecl1.C a_0 | TH_reifyDecl1.D - -TH_reifyDecl1.hs:63:10: - data TH_reifyDecl1.List a_0 +data TH_reifyDecl1.T = TH_reifyDecl1.A | TH_reifyDecl1.B +data TH_reifyDecl1.R a_0 = TH_reifyDecl1.C a_0 | TH_reifyDecl1.D +data TH_reifyDecl1.List a_0 = TH_reifyDecl1.Nil | TH_reifyDecl1.Cons a_0 (TH_reifyDecl1.List a_0) - -TH_reifyDecl1.hs:63:10: - data TH_reifyDecl1.Tree a_0 +data TH_reifyDecl1.Tree a_0 = TH_reifyDecl1.Leaf | (TH_reifyDecl1.Tree a_0) TH_reifyDecl1.:+: (TH_reifyDecl1.Tree a_0) - -TH_reifyDecl1.hs:63:10: - type TH_reifyDecl1.IntList = [GHC.Types.Int] - -TH_reifyDecl1.hs:63:10: - newtype TH_reifyDecl1.Length = TH_reifyDecl1.Length GHC.Types.Int - -TH_reifyDecl1.hs:63:10: - Constructor from TH_reifyDecl1.Tree: TH_reifyDecl1.Leaf :: forall a_0 . TH_reifyDecl1.Tree a_0 - -TH_reifyDecl1.hs:63:10: - Class op from TH_reifyDecl1.C1: TH_reifyDecl1.m1 :: forall a_0 . TH_reifyDecl1.C1 a_0 => +type TH_reifyDecl1.IntList = [GHC.Types.Int] +newtype TH_reifyDecl1.Length = TH_reifyDecl1.Length GHC.Types.Int +Constructor from TH_reifyDecl1.Tree: TH_reifyDecl1.Leaf :: forall a_0 . TH_reifyDecl1.Tree a_0 +Class op from TH_reifyDecl1.C1: TH_reifyDecl1.m1 :: forall a_0 . TH_reifyDecl1.C1 a_0 => a_0 -> GHC.Types.Int infixl 3 TH_reifyDecl1.m1 - -TH_reifyDecl1.hs:63:10: - class TH_reifyDecl1.C1 a_0 +class TH_reifyDecl1.C1 a_0 where TH_reifyDecl1.m1 :: forall a_0 . TH_reifyDecl1.C1 a_0 => a_0 -> GHC.Types.Int - -TH_reifyDecl1.hs:63:10: - class TH_reifyDecl1.C2 a_0 +class TH_reifyDecl1.C2 a_0 where TH_reifyDecl1.m2 :: forall a_0 . TH_reifyDecl1.C2 a_0 => a_0 -> GHC.Types.Int instance TH_reifyDecl1.C2 GHC.Types.Int - -TH_reifyDecl1.hs:63:10: - class TH_reifyDecl1.C3 a_0 +class TH_reifyDecl1.C3 a_0 instance TH_reifyDecl1.C3 GHC.Types.Int - -TH_reifyDecl1.hs:63:10: - type family TH_reifyDecl1.AT1 a_0 :: * -> * +type family TH_reifyDecl1.AT1 a_0 :: * -> * type instance TH_reifyDecl1.AT1 GHC.Types.Int = GHC.Types.Bool - -TH_reifyDecl1.hs:63:10: - data family TH_reifyDecl1.AT2 a_0 :: * -> * +data family TH_reifyDecl1.AT2 a_0 :: * -> * data instance TH_reifyDecl1.AT2 GHC.Types.Int = TH_reifyDecl1.AT2Int - -TH_reifyDecl1.hs:63:10: type family TH_reifyDecl1.TF1 a_0 :: * -> * - -TH_reifyDecl1.hs:63:10: - type family TH_reifyDecl1.TF2 a_0 :: * -> * +type family TH_reifyDecl1.TF1 a_0 :: * -> * +type family TH_reifyDecl1.TF2 a_0 :: * -> * type instance TH_reifyDecl1.TF2 GHC.Types.Bool = GHC.Types.Bool - -TH_reifyDecl1.hs:63:10: data family TH_reifyDecl1.DF1 a_0 :: * -> * - -TH_reifyDecl1.hs:63:10: - data family TH_reifyDecl1.DF2 a_0 :: * -> * +data family TH_reifyDecl1.DF1 a_0 :: * -> * +data family TH_reifyDecl1.DF2 a_0 :: * -> * data instance TH_reifyDecl1.DF2 GHC.Types.Bool = TH_reifyDecl1.DBool diff --git a/testsuite/tests/th/TH_reifyMkName.hs b/testsuite/tests/th/TH_reifyMkName.hs index c5d5ebeea9..7c4d7196e0 100644 --- a/testsuite/tests/th/TH_reifyMkName.hs +++ b/testsuite/tests/th/TH_reifyMkName.hs @@ -2,12 +2,13 @@ module Foo where +import System.IO import Language.Haskell.TH type C = Int $(do a <- reify $ mkName "C" - report False $ show a + runIO $ hPutStrLn stderr (show a) return [] ) diff --git a/testsuite/tests/th/TH_reifyMkName.stderr b/testsuite/tests/th/TH_reifyMkName.stderr index 0537f1ddcf..a82707f987 100644 --- a/testsuite/tests/th/TH_reifyMkName.stderr +++ b/testsuite/tests/th/TH_reifyMkName.stderr @@ -1,3 +1 @@ - -TH_reifyMkName.hs:9:3: - TyConI (TySynD Foo.C [] (ConT GHC.Types.Int)) +TyConI (TySynD Foo.C [] (ConT GHC.Types.Int)) diff --git a/testsuite/tests/typecheck/prog001/typecheck.prog001.stderr-ghc b/testsuite/tests/typecheck/prog001/typecheck.prog001.stderr-ghc index ea4c0e88f6..04d55b4447 100644 --- a/testsuite/tests/typecheck/prog001/typecheck.prog001.stderr-ghc +++ b/testsuite/tests/typecheck/prog001/typecheck.prog001.stderr-ghc @@ -1,4 +1,4 @@ - -B.hs:7:10: - Warning: No explicit method nor default method for `row' - In the instance declaration for `Matrix Bool Val' +
+B.hs:7:10:
+ Warning: No explicit method or default declaration for `row'
+ In the instance declaration for `Matrix Bool Val'
diff --git a/testsuite/tests/typecheck/should_compile/FD2.stderr b/testsuite/tests/typecheck/should_compile/FD2.stderr index 4dd98e2c77..2b2fee3eb9 100644 --- a/testsuite/tests/typecheck/should_compile/FD2.stderr +++ b/testsuite/tests/typecheck/should_compile/FD2.stderr @@ -1,25 +1,25 @@ -
-FD2.hs:26:36:
- Could not deduce (e1 ~ e)
- from the context (Foldable a)
- bound by the class declaration for `Foldable'
- at FD2.hs:(17,1)-(26,39)
- or from (Elem a e)
- bound by the type signature for
- foldr1 :: Elem a e => (e -> e -> e) -> a -> e
- at FD2.hs:(22,3)-(26,39)
- or from (Elem a e1)
- bound by the type signature for
- mf :: Elem a e1 => e1 -> Maybe e1 -> Maybe e1
- at FD2.hs:(25,12)-(26,39)
- `e1' is a rigid type variable bound by
- the type signature for
- mf :: Elem a e1 => e1 -> Maybe e1 -> Maybe e1
- at FD2.hs:25:12
- `e' is a rigid type variable bound by
- the type signature for
- foldr1 :: Elem a e => (e -> e -> e) -> a -> e
- at FD2.hs:22:3
- In the first argument of `f', namely `x'
- In the first argument of `Just', namely `(f x y)'
- In the expression: Just (f x y)
+ +FD2.hs:26:36: + Could not deduce (e ~ e1) + from the context (Foldable a) + bound by the class declaration for `Foldable' + at FD2.hs:(17,1)-(26,39) + or from (Elem a e) + bound by the type signature for + foldr1 :: Elem a e => (e -> e -> e) -> a -> e + at FD2.hs:(22,3)-(26,39) + or from (Elem a e1) + bound by the type signature for + mf :: Elem a e1 => e1 -> Maybe e1 -> Maybe e1 + at FD2.hs:(25,12)-(26,39) + `e' is a rigid type variable bound by + the type signature for + foldr1 :: Elem a e => (e -> e -> e) -> a -> e + at FD2.hs:22:3 + `e1' is a rigid type variable bound by + the type signature for + mf :: Elem a e1 => e1 -> Maybe e1 -> Maybe e1 + at FD2.hs:25:12 + In the first argument of `f', namely `x' + In the first argument of `Just', namely `(f x y)' + In the expression: Just (f x y) diff --git a/testsuite/tests/typecheck/should_compile/T2494.stderr b/testsuite/tests/typecheck/should_compile/T2494.stderr index 5e5661e74a..765858e198 100644 --- a/testsuite/tests/typecheck/should_compile/T2494.stderr +++ b/testsuite/tests/typecheck/should_compile/T2494.stderr @@ -1,22 +1,24 @@ -
-T2494.hs:15:7:
- Couldn't match type `b' with `a'
- `b' is a rigid type variable bound by
- the RULE "foo/foo" at T2494.hs:14:46
- `a' is a rigid type variable bound by
- the RULE "foo/foo" at T2494.hs:13:46
- Expected type: Maybe (m b) -> Maybe (m b)
- Actual type: Maybe (m a) -> Maybe (m a)
- In the first argument of `foo', namely `f'
- In the expression: foo f (foo g x)
-
-T2494.hs:15:30:
- Couldn't match type `b' with `a'
- `b' is a rigid type variable bound by
- the RULE "foo/foo" at T2494.hs:14:46
- `a' is a rigid type variable bound by
- the RULE "foo/foo" at T2494.hs:13:46
- Expected type: Maybe (m b) -> Maybe (m a)
- Actual type: Maybe (m b) -> Maybe (m b)
- In the second argument of `(.)', namely `g'
- In the first argument of `foo', namely `(f . g)'
+ +T2494.hs:15:7: + Couldn't match type `b' with `a' + `b' is a rigid type variable bound by + the RULE "foo/foo" at T2494.hs:14:46 + `a' is a rigid type variable bound by + the RULE "foo/foo" at T2494.hs:13:46 + Expected type: Maybe (m b) -> Maybe (m b) + Actual type: Maybe (m a) -> Maybe (m a) + In the first argument of `foo', namely `f' + In the expression: foo f (foo g x) + When checking the transformation rule "foo/foo" + +T2494.hs:15:30: + Couldn't match type `b' with `a' + `b' is a rigid type variable bound by + the RULE "foo/foo" at T2494.hs:14:46 + `a' is a rigid type variable bound by + the RULE "foo/foo" at T2494.hs:13:46 + Expected type: Maybe (m b) -> Maybe (m a) + Actual type: Maybe (m b) -> Maybe (m b) + In the second argument of `(.)', namely `g' + In the first argument of `foo', namely `(f . g)' + In the expression: foo (f . g) x diff --git a/testsuite/tests/typecheck/should_compile/T4912.stderr b/testsuite/tests/typecheck/should_compile/T4912.stderr index c944dc1260..50d2deb3cd 100644 --- a/testsuite/tests/typecheck/should_compile/T4912.stderr +++ b/testsuite/tests/typecheck/should_compile/T4912.stderr @@ -1,4 +1,4 @@ -T4912.hs:10:10: Warning: orphan instance: instance Foo TheirData +T4912.hs:10:10: Warning: Orphan instance: instance Foo TheirData -T4912.hs:13:10: Warning: orphan instance: instance Bar OurData +T4912.hs:13:10: Warning: Orphan instance: instance Bar OurData diff --git a/testsuite/tests/typecheck/should_compile/tc168.stderr b/testsuite/tests/typecheck/should_compile/tc168.stderr index 3a97b3f097..cbaa0aceeb 100644 --- a/testsuite/tests/typecheck/should_compile/tc168.stderr +++ b/testsuite/tests/typecheck/should_compile/tc168.stderr @@ -5,6 +5,8 @@ tc168.hs:17:1: from the context (C a1 (a, b)) bound by the inferred type for `g': C a1 (a, b) => a1 -> a at tc168.hs:17:1-16 + The type variable `b0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Possible fix: add an instance declaration for (C a1 (a, b0)) When checking that `g' has the inferred type `forall a b a1. C a1 (a, b) => a1 -> a' diff --git a/testsuite/tests/typecheck/should_compile/tc211.stderr b/testsuite/tests/typecheck/should_compile/tc211.stderr index 30d986c456..e6c5675422 100644 --- a/testsuite/tests/typecheck/should_compile/tc211.stderr +++ b/testsuite/tests/typecheck/should_compile/tc211.stderr @@ -1,25 +1,24 @@ tc211.hs:15:22: - Couldn't match expected type `a -> a' - with actual type `forall a1. a1 -> a1' - Expected type: [a -> a] - Actual type: [forall a1. a1 -> a1] + Couldn't match type `forall a1. a1 -> a1' with `a -> a' + Expected type: [a -> a] + Actual type: [forall a. a -> a] In the first argument of `head', namely `foo' In the first argument of `(:) :: (forall a. a -> a) -> [forall a. a -> a] -> [forall a. a -> a]', namely `(head foo)' + In the expression: + ((:) :: + (forall a. a -> a) -> [forall a. a -> a] -> [forall a. a -> a]) + (head foo) foo tc211.hs:70:9: - Couldn't match expected type `a -> a' - with actual type `forall a1. a1 -> a1' - Expected type: List (forall a1. a1 -> a1) - -> (forall a1. a1 -> a1) - -> a - -> a - Actual type: List (forall a1. a1 -> a1) - -> (forall a1. a1 -> a1) - -> forall a1. a1 -> a1 + Couldn't match type `forall a1. a1 -> a1' with `a -> a' + Expected type: List (forall a. a -> a) + -> (forall a. a -> a) -> a -> a + Actual type: List (forall a. a -> a) + -> (forall a. a -> a) -> forall a. a -> a In the expression: foo2 :: List (forall a. a -> a) -> (forall a. a -> a) -> (forall a. a -> a) @@ -28,3 +27,9 @@ tc211.hs:70:9: List (forall a. a -> a) -> (forall a. a -> a) -> (forall a. a -> a)) xs1 (\ x -> x) + In an equation for `bar4': + bar4 + = (foo2 :: + List (forall a. a -> a) + -> (forall a. a -> a) -> (forall a. a -> a)) + xs1 (\ x -> x) diff --git a/testsuite/tests/typecheck/should_fail/FrozenErrorTests.stderr b/testsuite/tests/typecheck/should_fail/FrozenErrorTests.stderr index 193d356190..f5a49c89d0 100644 --- a/testsuite/tests/typecheck/should_fail/FrozenErrorTests.stderr +++ b/testsuite/tests/typecheck/should_fail/FrozenErrorTests.stderr @@ -1,73 +1,70 @@ -
-FrozenErrorTests.hs:11:1:
- Couldn't match type `a' with `T a'
- `a' is a rigid type variable bound by
- the type signature for foo :: a ~ T a => a -> a
- at FrozenErrorTests.hs:11:1
- Inaccessible code in
- the type signature for foo :: a ~ T a => a -> a
-
-FrozenErrorTests.hs:14:12:
- Couldn't match type `b' with `T b'
- `b' is a rigid type variable bound by
- a pattern with constructor
- MkT2 :: forall a b. b ~ T b => b -> T a,
- in a case alternative
- at FrozenErrorTests.hs:14:12
- Inaccessible code in
- a pattern with constructor
- MkT2 :: forall a b. b ~ T b => b -> T a,
- in a case alternative
- In the pattern: MkT2 y
- In a case alternative: MkT2 y -> ()
- In the expression: case x of { MkT2 y -> () }
-
-FrozenErrorTests.hs:19:12:
- Couldn't match type `Int' with `Bool'
- Inaccessible code in
- a pattern with constructor
- MkT3 :: forall a. a ~ Bool => T a,
- in a case alternative
- In the pattern: MkT3
- In a case alternative: MkT3 -> ()
- In the expression: case x of { MkT3 -> () }
-
-FrozenErrorTests.hs:33:9:
- Occurs check: cannot construct the infinite type: a0 = [a0]
- In the expression: goo1 False undefined
- In an equation for `test1': test1 = goo1 False undefined
-
-FrozenErrorTests.hs:36:15:
- Couldn't match type `[Int]' with `Int'
- In the first argument of `goo2', namely `(goo1 False undefined)'
- In the expression: goo2 (goo1 False undefined)
- In an equation for `test2': test2 = goo2 (goo1 False undefined)
-
-FrozenErrorTests.hs:37:9:
- Couldn't match type `Int' with `[Int]'
- In the expression: goo1 False (goo2 undefined)
- In an equation for `test3': test3 = goo1 False (goo2 undefined)
-
-FrozenErrorTests.hs:52:15:
- Occurs check: cannot construct the infinite type:
- c0 = T2 (T2 c0 c0) c0
- In the first argument of `goo4', namely `(goo3 False undefined)'
- In the expression: goo4 (goo3 False undefined)
- In an equation for `test4': test4 = goo4 (goo3 False undefined)
-
-FrozenErrorTests.hs:52:15:
- Couldn't match type `T2 c0' with `M'
- In the first argument of `goo4', namely `(goo3 False undefined)'
- In the expression: goo4 (goo3 False undefined)
- In an equation for `test4': test4 = goo4 (goo3 False undefined)
-
-FrozenErrorTests.hs:53:9:
- Occurs check: cannot construct the infinite type:
- c0 = T2 (T2 c0 c0) c0
- In the expression: goo3 False (goo4 undefined)
- In an equation for `test5': test5 = goo3 False (goo4 undefined)
-
-FrozenErrorTests.hs:53:9:
- Couldn't match type `T2 c0' with `M'
- In the expression: goo3 False (goo4 undefined)
- In an equation for `test5': test5 = goo3 False (goo4 undefined)
+ +FrozenErrorTests.hs:11:1: + Couldn't match type `a' with `T a' + `a' is a rigid type variable bound by + the type signature for foo :: a ~ T a => a -> a + at FrozenErrorTests.hs:11:1 + Inaccessible code in + the type signature for foo :: a ~ T a => a -> a + +FrozenErrorTests.hs:14:12: + Couldn't match type `b' with `T b' + `b' is a rigid type variable bound by + a pattern with constructor + MkT2 :: forall a b. b ~ T b => b -> T a, + in a case alternative + at FrozenErrorTests.hs:14:12 + Inaccessible code in + a pattern with constructor + MkT2 :: forall a b. b ~ T b => b -> T a, + in a case alternative + In the pattern: MkT2 y + In a case alternative: MkT2 y -> () + In the expression: case x of { MkT2 y -> () } + +FrozenErrorTests.hs:19:12: + Couldn't match type `Int' with `Bool' + Inaccessible code in + a pattern with constructor + MkT3 :: forall a. a ~ Bool => T a, + in a case alternative + In the pattern: MkT3 + In a case alternative: MkT3 -> () + In the expression: case x of { MkT3 -> () } + +FrozenErrorTests.hs:33:9: + Occurs check: cannot construct the infinite type: a0 = [a0] + Expected type: [a0] + Actual type: F a0 Bool + In the expression: goo1 False undefined + In an equation for `test1': test1 = goo1 False undefined + +FrozenErrorTests.hs:36:15: + Couldn't match type `[Int]' with `Int' + Expected type: [[Int]] + Actual type: F [Int] Bool + In the first argument of `goo2', namely `(goo1 False undefined)' + In the expression: goo2 (goo1 False undefined) + In an equation for `test2': test2 = goo2 (goo1 False undefined) + +FrozenErrorTests.hs:37:9: + Couldn't match type `Int' with `[Int]' + Expected type: [[Int]] + Actual type: F [Int] Bool + In the expression: goo1 False (goo2 undefined) + In an equation for `test3': test3 = goo1 False (goo2 undefined) + +FrozenErrorTests.hs:52:15: + Couldn't match type `T2 c0 c0' with `M (T2 (T2 c0 c0) c0)' + Expected type: T2 (M (T2 (T2 c0 c0) c0)) (T2 (T2 c0 c0) c0) + Actual type: F (T2 (T2 c0 c0) c0) Bool + In the first argument of `goo4', namely `(goo3 False undefined)' + In the expression: goo4 (goo3 False undefined) + In an equation for `test4': test4 = goo4 (goo3 False undefined) + +FrozenErrorTests.hs:53:9: + Couldn't match type `T2 c0 c0' with `M (T2 (T2 c0 c0) c0)' + Expected type: T2 (M (T2 (T2 c0 c0) c0)) (T2 (T2 c0 c0) c0) + Actual type: F (T2 (T2 c0 c0) c0) Bool + In the expression: goo3 False (goo4 undefined) + In an equation for `test5': test5 = goo3 False (goo4 undefined) diff --git a/testsuite/tests/typecheck/should_fail/T1897a.stderr b/testsuite/tests/typecheck/should_fail/T1897a.stderr index bbbf8260bd..6e5ee1c7a9 100644 --- a/testsuite/tests/typecheck/should_fail/T1897a.stderr +++ b/testsuite/tests/typecheck/should_fail/T1897a.stderr @@ -1,8 +1,12 @@ T1897a.hs:9:1: - Ambiguous type variable `a0' in the constraint: - (Wob a0 b) arising from the ambiguity check for `foo' - Probable fix: add a type signature that fixes these type variable(s) + Could not deduce (Wob a0 b) + arising from the ambiguity check for `foo' + from the context (Wob a b) + bound by the inferred type for `foo': Wob a b => b -> [b] + at T1897a.hs:9:1-24 + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) When checking that `foo' has the inferred type `forall a b. Wob a b => b -> [b]' Probable cause: the inferred type is ambiguous diff --git a/testsuite/tests/typecheck/should_fail/T1899.stderr b/testsuite/tests/typecheck/should_fail/T1899.stderr index b0c017351a..5779301745 100644 --- a/testsuite/tests/typecheck/should_fail/T1899.stderr +++ b/testsuite/tests/typecheck/should_fail/T1899.stderr @@ -1,10 +1,11 @@ -
-T1899.hs:14:36:
- Couldn't match type `a' with `Proposition a0'
- `a' is a rigid type variable bound by
- the type signature for transRHS :: [a] -> Int -> Constraint a
- at T1899.hs:10:2
- Expected type: [Proposition a0]
- Actual type: [a]
- In the first argument of `Auxiliary', namely `varSet'
- In the first argument of `Prop', namely `(Auxiliary varSet)'
+ +T1899.hs:14:36: + Couldn't match type `a' with `Proposition a0' + `a' is a rigid type variable bound by + the type signature for transRHS :: [a] -> Int -> Constraint a + at T1899.hs:10:2 + Expected type: [Proposition a0] + Actual type: [a] + In the first argument of `Auxiliary', namely `varSet' + In the first argument of `Prop', namely `(Auxiliary varSet)' + In the expression: Prop (Auxiliary varSet) diff --git a/testsuite/tests/typecheck/should_fail/T2414.stderr b/testsuite/tests/typecheck/should_fail/T2414.stderr index 030bf6e52a..5fa8f0060a 100644 --- a/testsuite/tests/typecheck/should_fail/T2414.stderr +++ b/testsuite/tests/typecheck/should_fail/T2414.stderr @@ -5,3 +5,4 @@ T2414.hs:9:13: Actual type: b0 -> Maybe b0 In the first argument of `unfoldr', namely `Just' In the expression: unfoldr Just + In an equation for `f': f = unfoldr Just diff --git a/testsuite/tests/typecheck/should_fail/T2688.stderr b/testsuite/tests/typecheck/should_fail/T2688.stderr index a658d7395d..aa896569b9 100644 --- a/testsuite/tests/typecheck/should_fail/T2688.stderr +++ b/testsuite/tests/typecheck/should_fail/T2688.stderr @@ -1,13 +1,13 @@ -
-T2688.hs:8:22:
- Could not deduce (s ~ v)
- from the context (VectorSpace v s)
- bound by the class declaration for `VectorSpace'
- at T2688.hs:(5,1)-(8,23)
- `s' is a rigid type variable bound by
- the class declaration for `VectorSpace' at T2688.hs:5:21
- `v' is a rigid type variable bound by
- the class declaration for `VectorSpace' at T2688.hs:5:19
- In the second argument of `(/)', namely `s'
- In the second argument of `(*^)', namely `(1 / s)'
- In the expression: v *^ (1 / s)
+ +T2688.hs:8:22: + Could not deduce (v ~ s) + from the context (VectorSpace v s) + bound by the class declaration for `VectorSpace' + at T2688.hs:(5,1)-(8,23) + `v' is a rigid type variable bound by + the class declaration for `VectorSpace' at T2688.hs:5:19 + `s' is a rigid type variable bound by + the class declaration for `VectorSpace' at T2688.hs:5:21 + In the second argument of `(/)', namely `s' + In the second argument of `(*^)', namely `(1 / s)' + In the expression: v *^ (1 / s) diff --git a/testsuite/tests/typecheck/should_fail/T2714.stderr b/testsuite/tests/typecheck/should_fail/T2714.stderr index da355fc738..18e36fa800 100644 --- a/testsuite/tests/typecheck/should_fail/T2714.stderr +++ b/testsuite/tests/typecheck/should_fail/T2714.stderr @@ -14,8 +14,6 @@ T2714.hs:8:5: `c' is a rigid type variable bound by the type signature for f :: ((a -> b) -> b) -> c -> a at T2714.hs:8:1 - Expected type: c - Actual type: f0 (a -> b) Expected type: ((a -> b) -> b) -> c -> a Actual type: ((a -> b) -> b) -> f0 (a -> b) -> f0 b In the expression: ffmap diff --git a/testsuite/tests/typecheck/should_fail/T2846b.stderr b/testsuite/tests/typecheck/should_fail/T2846b.stderr index 79527c15b7..de90637c2a 100644 --- a/testsuite/tests/typecheck/should_fail/T2846b.stderr +++ b/testsuite/tests/typecheck/should_fail/T2846b.stderr @@ -2,6 +2,8 @@ T2846b.hs:5:5: No instance for (Show (Num a0 => a0)) arising from a use of `show' + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Possible fix: add an instance declaration for (Show (Num a0 => a0)) In the expression: show ([1, 2, 3] :: [Num a => a]) In an equation for `f': f = show ([1, 2, 3] :: [Num a => a]) diff --git a/testsuite/tests/typecheck/should_fail/T3102.stderr b/testsuite/tests/typecheck/should_fail/T3102.stderr index cf3483870d..0cf9d52187 100644 --- a/testsuite/tests/typecheck/should_fail/T3102.stderr +++ b/testsuite/tests/typecheck/should_fail/T3102.stderr @@ -7,3 +7,4 @@ T3102.hs:11:12: Actual type: ((?p::Int) => a0) -> String In the first argument of `f', namely `t' In the expression: f t + In an equation for `result': result = f t diff --git a/testsuite/tests/typecheck/should_fail/T3613.stderr b/testsuite/tests/typecheck/should_fail/T3613.stderr index feb46416df..1373b7143d 100644 --- a/testsuite/tests/typecheck/should_fail/T3613.stderr +++ b/testsuite/tests/typecheck/should_fail/T3613.stderr @@ -1,12 +1,16 @@ T3613.hs:14:20: - Couldn't match expected type `Maybe a0' with actual type `IO ()' + Couldn't match type `IO' with `Maybe' + Expected type: Maybe () + Actual type: IO () In the first argument of `(>>)', namely `bar' In the first argument of `fooThen', namely `(bar >> undefined)' In the expression: fooThen (bar >> undefined) T3613.hs:17:24: - Couldn't match expected type `Maybe a0' with actual type `IO ()' + Couldn't match type `IO' with `Maybe' + Expected type: Maybe () + Actual type: IO () In a stmt of a 'do' block: bar In the first argument of `fooThen', namely `(do { bar; diff --git a/testsuite/tests/typecheck/should_fail/T3950.stderr b/testsuite/tests/typecheck/should_fail/T3950.stderr index 8e6f948524..c8d8340885 100644 --- a/testsuite/tests/typecheck/should_fail/T3950.stderr +++ b/testsuite/tests/typecheck/should_fail/T3950.stderr @@ -1,7 +1,13 @@ -
-T3950.hs:15:13:
- Couldn't match expected type `Id p' with actual type `Id p x0'
- Expected type: w (Id p)
- Actual type: Sealed (Id p x0)
- In the first argument of `Just', namely rp'
- In the expression: Just rp'
+ +T3950.hs:15:13: + Couldn't match type `Id p0 x0' with `Id p' + Expected type: w (Id p) + Actual type: Sealed (Id p0 x0) + In the first argument of `Just', namely rp' + In the expression: Just rp' + In an equation for `rp': + rp _ + = Just rp' + where + rp' :: Sealed (Id p x) + rp' = undefined diff --git a/testsuite/tests/typecheck/should_fail/T5236.stderr b/testsuite/tests/typecheck/should_fail/T5236.stderr index 76f6de2353..a2da439690 100644 --- a/testsuite/tests/typecheck/should_fail/T5236.stderr +++ b/testsuite/tests/typecheck/should_fail/T5236.stderr @@ -1,20 +1,10 @@ -
-T5236.hs:17:5:
- Couldn't match type `A' with `B'
- When using functional dependencies to combine
- Id A A,
- arising from the dependency `a -> b'
- in the instance declaration at T5236.hs:10:10
- Id A B, arising from a use of `loop' at T5236.hs:17:5-8
- In the expression: loop
- In an equation for `f': f = loop
-
-T5236.hs:17:5:
- Couldn't match type `B' with `A'
- When using functional dependencies to combine
- Id B B,
- arising from the dependency `b -> a'
- in the instance declaration at T5236.hs:11:10
- Id A B, arising from a use of `loop' at T5236.hs:17:5-8
- In the expression: loop
- In an equation for `f': f = loop
+ +T5236.hs:17:5: + Couldn't match type `A' with `B' + When using functional dependencies to combine + Id A A, + arising from the dependency `a -> b' + in the instance declaration at T5236.hs:10:10 + Id A B, arising from a use of `loop' at T5236.hs:17:5-8 + In the expression: loop + In an equation for `f': f = loop diff --git a/testsuite/tests/typecheck/should_fail/T5300.stderr b/testsuite/tests/typecheck/should_fail/T5300.stderr index bc3bc066b5..a051692bc5 100644 --- a/testsuite/tests/typecheck/should_fail/T5300.stderr +++ b/testsuite/tests/typecheck/should_fail/T5300.stderr @@ -1,8 +1,13 @@ T5300.hs:15:9: - Ambiguous type variable `c0' in the constraint: - (C1 a1 b2 c0) arising from a use of `f1' - Probable fix: add a type signature that fixes these type variable(s) + Could not deduce (C1 a1 b2 c0) arising from a use of `f1' + from the context (Monad m, C1 a1 b1 c1, C2 a2 b2 c2) + bound by the type signature for + f2 :: (Monad m, C1 a1 b1 c1, C2 a2 b2 c2) => + a1 -> StateT (T b2) m a2 + at T5300.hs:15:1-36 + The type variable `c0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) In the first argument of `(>>=)', namely `f1 fm' In the expression: f1 fm >>= return . undefined In an equation for `f2': f2 fm = f1 fm >>= return . undefined diff --git a/testsuite/tests/typecheck/should_fail/T5573a.stderr b/testsuite/tests/typecheck/should_fail/T5573a.stderr index 7c599cc047..52aa99ae71 100644 --- a/testsuite/tests/typecheck/should_fail/T5573a.stderr +++ b/testsuite/tests/typecheck/should_fail/T5573a.stderr @@ -3,7 +3,7 @@ T5573a.hs:11:16: Couldn't match kind `ArgKind' against `(#)' Kind incompatibility when matching types: t0 :: ArgKind - (# t1, t2 #) :: (#) + (# t0, t1 #) :: (#) In the expression: (# True, False #) In the expression: (# x, (# True, False #) #) @@ -11,6 +11,6 @@ T5573a.hs:14:6: Couldn't match kind `ArgKind' against `(#)' Kind incompatibility when matching types: t0 :: ArgKind - (# t1, t2 #) :: (#) + (# t0, t1 #) :: (#) In the pattern: (# x, y #) In an equation for `foo3': foo3 (# x, y #) = x diff --git a/testsuite/tests/typecheck/should_fail/T5684.stderr b/testsuite/tests/typecheck/should_fail/T5684.stderr index 0d029786b0..0aa8b17973 100644 --- a/testsuite/tests/typecheck/should_fail/T5684.stderr +++ b/testsuite/tests/typecheck/should_fail/T5684.stderr @@ -1,20 +1,10 @@ - -T5684.hs:24:12: - No instance for (B Char b5) - arising from a use of `op' - Possible fix: add an instance declaration for (B Char b5) - In the expression: op 'c' undefined - In the expression: - [op False False, op 'c' undefined, op True undefined] - In an equation for `flop1': - flop1 = [op False False, op 'c' undefined, op True undefined] - -T5684.hs:53:12: - No instance for (A Bool) - arising from a use of `op' - Possible fix: add an instance declaration for (A Bool) - In the expression: op False False - In the expression: - [op True undefined, op False False, op 'c' undefined] - In an equation for `flop6': - flop6 = [op True undefined, op False False, op 'c' undefined] +
+T5684.hs:53:12:
+ No instance for (A Bool)
+ arising from a use of `op'
+ Possible fix: add an instance declaration for (A Bool)
+ In the expression: op False False
+ In the expression:
+ [op True undefined, op False False, op 'c' undefined]
+ In an equation for `flop6':
+ flop6 = [op True undefined, op False False, op 'c' undefined]
diff --git a/testsuite/tests/typecheck/should_fail/T5689.stderr b/testsuite/tests/typecheck/should_fail/T5689.stderr index cad433a2ca..28f9c01940 100644 --- a/testsuite/tests/typecheck/should_fail/T5689.stderr +++ b/testsuite/tests/typecheck/should_fail/T5689.stderr @@ -1,7 +1,7 @@ -
-T5689.hs:10:36:
- Couldn't match type `t' with `Bool'
- In the expression: v
- In the expression: if v then False else True
- In the second argument of `writeIORef', namely
- `(\ v -> if v then False else True)'
+ +T5689.hs:10:36: + Couldn't match expected type `t' with actual type `Bool' + In the expression: v + In the expression: if v then False else True + In the second argument of `writeIORef', namely + `(\ v -> if v then False else True)' diff --git a/testsuite/tests/typecheck/should_fail/all.T b/testsuite/tests/typecheck/should_fail/all.T index 3585f4ae7e..0459783281 100644 --- a/testsuite/tests/typecheck/should_fail/all.T +++ b/testsuite/tests/typecheck/should_fail/all.T @@ -67,7 +67,7 @@ test('tcfail076', normal, compile_fail, ['']) test('tcfail077', normal, compile_fail, ['']) test('tcfail078', normal, compile_fail, ['']) test('tcfail079', only_compiler_types(['ghc']), compile_fail, ['']) -test('tcfail080', if_compiler_type('ghc', expect_fail), compile_fail, ['']) +test('tcfail080', normal, compile_fail, ['']) test('tcfail082', normal, compile_fail, ['']) test('tcfail083', normal, compile_fail, ['']) test('tcfail084', normal, compile_fail, ['']) diff --git a/testsuite/tests/typecheck/should_fail/mc19.stderr b/testsuite/tests/typecheck/should_fail/mc19.stderr index b75e90a30d..7015d47d74 100644 --- a/testsuite/tests/typecheck/should_fail/mc19.stderr +++ b/testsuite/tests/typecheck/should_fail/mc19.stderr @@ -1,9 +1,10 @@ -
-mc19.hs:10:31:
- Couldn't match type `a' with `[a]'
- `a' is a rigid type variable bound by
- a type expected by the context: [a] -> [a] at mc19.hs:10:26
- Expected type: [a] -> [a]
- Actual type: [a] -> [[a]]
- In the expression: inits
- In a stmt of a monad comprehension: then inits
+ +mc19.hs:10:31: + Couldn't match type `a' with `[a]' + `a' is a rigid type variable bound by + a type expected by the context: [a] -> [a] at mc19.hs:10:26 + Expected type: [a] -> [a] + Actual type: [a] -> [[a]] + In the expression: inits + In a stmt of a monad comprehension: then inits + In the expression: [x | x <- [3, 2, 1], then inits] diff --git a/testsuite/tests/typecheck/should_fail/mc21.stderr b/testsuite/tests/typecheck/should_fail/mc21.stderr index 1e958c83d2..bd7bac1dd9 100644 --- a/testsuite/tests/typecheck/should_fail/mc21.stderr +++ b/testsuite/tests/typecheck/should_fail/mc21.stderr @@ -1,9 +1,10 @@ -
-mc21.hs:12:26:
- Couldn't match type `a' with `[a]'
- `a' is a rigid type variable bound by
- a type expected by the context: [a] -> [[a]] at mc21.hs:12:9
- Expected type: [a] -> [[a]]
- Actual type: [a] -> [a]
- In the return type of a call of `take'
- In the expression: take 5
+ +mc21.hs:12:26: + Couldn't match type `a' with `[a]' + `a' is a rigid type variable bound by + a type expected by the context: [a] -> [[a]] at mc21.hs:12:9 + Expected type: [a] -> [[a]] + Actual type: [a] -> [a] + In the return type of a call of `take' + In the expression: take 5 + In a stmt of a monad comprehension: then group using take 5 diff --git a/testsuite/tests/typecheck/should_fail/mc22.stderr b/testsuite/tests/typecheck/should_fail/mc22.stderr index 57d9a01835..a309d3bf4b 100644 --- a/testsuite/tests/typecheck/should_fail/mc22.stderr +++ b/testsuite/tests/typecheck/should_fail/mc22.stderr @@ -1,9 +1,32 @@ -
-mc22.hs:10:26:
- Couldn't match type `a' with `t0 a'
- `a' is a rigid type variable bound by
- a type expected by the context: [a] -> [t0 a] at mc22.hs:10:9
- Expected type: [a] -> [t0 a]
- Actual type: [a] -> [a]
- In the return type of a call of `take'
- In the expression: take 5
+ +mc22.hs:8:11: + No instance for (Num (t0 [Char])) + arising from a use of `+' + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + Possible fix: add an instance declaration for (Num (t0 [Char])) + In the expression: x + 1 + In the expression: + [x + 1 | x <- ["Hello", "World"], then group using take 5] + In an equation for `foo': + foo = [x + 1 | x <- ["Hello", "World"], then group using take 5] + +mc22.hs:10:9: + No instance for (Functor t0) + arising from a use of `fmap' + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: fmap + In a stmt of a monad comprehension: then group using take 5 + In the expression: + [x + 1 | x <- ["Hello", "World"], then group using take 5] + +mc22.hs:10:26: + Couldn't match type `a' with `t0 a' + `a' is a rigid type variable bound by + a type expected by the context: [a] -> [t0 a] at mc22.hs:10:9 + Expected type: [a] -> [t0 a] + Actual type: [a] -> [a] + In the return type of a call of `take' + In the expression: take 5 + In a stmt of a monad comprehension: then group using take 5 diff --git a/testsuite/tests/typecheck/should_fail/mc23.stderr b/testsuite/tests/typecheck/should_fail/mc23.stderr index ec632f8bdb..6e69a1df15 100644 --- a/testsuite/tests/typecheck/should_fail/mc23.stderr +++ b/testsuite/tests/typecheck/should_fail/mc23.stderr @@ -1,8 +1,36 @@ +mc23.hs:9:15: + No instance for (Enum b0) + arising from the arithmetic sequence `1 .. 10' + The type variable `b0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In a stmt of a monad comprehension: x <- [1 .. 10] + In a stmt of a monad comprehension: then take 5 by x + In the expression: [x | x <- [1 .. 10], then take 5 by x] + +mc23.hs:9:16: + No instance for (Num b0) + arising from the literal `1' + The type variable `b0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: 1 + In a stmt of a monad comprehension: x <- [1 .. 10] + In a stmt of a monad comprehension: then take 5 by x + +mc23.hs:9:24: + No instance for (Monad t0) + arising from a statement in a monad comprehension + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In a stmt of a monad comprehension: then take 5 by x + In the expression: [x | x <- [1 .. 10], then take 5 by x] + In an equation for `z': z = [x | x <- [1 .. 10], then take 5 by x] + mc23.hs:9:29: - Couldn't match expected type `a -> t0' with actual type `[a0]' - Expected type: (a -> t0) -> [a] -> t1 a + Couldn't match type `[a0]' with `a -> b0' + Expected type: (a -> b0) -> [a] -> t0 a Actual type: [a0] -> [a0] In the return type of a call of `take' Probable cause: `take' is applied to too many arguments In the expression: take 5 + In a stmt of a monad comprehension: then take 5 by x diff --git a/testsuite/tests/typecheck/should_fail/mc24.stderr b/testsuite/tests/typecheck/should_fail/mc24.stderr index bee1592659..4856dc75ad 100644 --- a/testsuite/tests/typecheck/should_fail/mc24.stderr +++ b/testsuite/tests/typecheck/should_fail/mc24.stderr @@ -1,8 +1,39 @@ +mc24.hs:9:14: + No instance for (Enum a1) + arising from the arithmetic sequence `1 .. 10' + The type variable `a1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In a stmt of a monad comprehension: x <- [1 .. 10] + In a stmt of a monad comprehension: then group by x using take 2 + In the expression: + [length x | x <- [1 .. 10], then group by x using take 2] + +mc24.hs:9:15: + No instance for (Num a1) + arising from the literal `1' + The type variable `a1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: 1 + In a stmt of a monad comprehension: x <- [1 .. 10] + In a stmt of a monad comprehension: then group by x using take 2 + +mc24.hs:10:9: + No instance for (Monad t0) + arising from a statement in a monad comprehension + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In a stmt of a monad comprehension: then group by x using take 2 + In the expression: + [length x | x <- [1 .. 10], then group by x using take 2] + In an equation for `foo': + foo = [length x | x <- [1 .. 10], then group by x using take 2] + mc24.hs:10:31: - Couldn't match expected type `a -> t0' with actual type `[a0]' - Expected type: (a -> t0) -> [a] -> t1 (t2 a) + Couldn't match type `[a0]' with `a -> a1' + Expected type: (a -> a1) -> [a] -> t0 [a] Actual type: [a0] -> [a0] In the return type of a call of `take' Probable cause: `take' is applied to too many arguments In the expression: take 2 + In a stmt of a monad comprehension: then group by x using take 2 diff --git a/testsuite/tests/typecheck/should_fail/mc25.stderr b/testsuite/tests/typecheck/should_fail/mc25.stderr index 7016fad147..71559fb3d2 100644 --- a/testsuite/tests/typecheck/should_fail/mc25.stderr +++ b/testsuite/tests/typecheck/should_fail/mc25.stderr @@ -1,7 +1,35 @@ +mc25.hs:9:15: + No instance for (Enum t0) + arising from the arithmetic sequence `1 .. 10' + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In a stmt of a monad comprehension: x <- [1 .. 10] + In a stmt of a monad comprehension: then group by x using take + In the expression: [x | x <- [1 .. 10], then group by x using take] + +mc25.hs:9:16: + No instance for (Num t0) + arising from the literal `1' + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: 1 + In a stmt of a monad comprehension: x <- [1 .. 10] + In a stmt of a monad comprehension: then group by x using take + +mc25.hs:9:24: + No instance for (Functor t1) + arising from a use of `fmap' + The type variable `t1' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: fmap + In a stmt of a monad comprehension: then group by x using take + In the expression: [x | x <- [1 .. 10], then group by x using take] + mc25.hs:9:46: - Couldn't match expected type `a -> t0' with actual type `Int' - Expected type: (a -> t0) -> [a] -> t1 (t2 a) - Actual type: Int -> [a0] -> [a0] + Couldn't match type `Int' with `a -> t0' + Expected type: (a -> t0) -> [a] -> [t1 a] + Actual type: Int -> [a] -> [a] In the expression: take In a stmt of a monad comprehension: then group by x using take + In the expression: [x | x <- [1 .. 10], then group by x using take] diff --git a/testsuite/tests/typecheck/should_fail/tcfail001.stderr b/testsuite/tests/typecheck/should_fail/tcfail001.stderr index 5fadcf6271..7c9b8ba27b 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail001.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail001.stderr @@ -1,5 +1,6 @@ tcfail001.hs:9:2: + Couldn't match expected type `[t0] -> [a0]' with actual type `[a]' The equation(s) for `op' have one argument, but its type `[a]' has none In the instance declaration for `A [a]' diff --git a/testsuite/tests/typecheck/should_fail/tcfail005.stderr b/testsuite/tests/typecheck/should_fail/tcfail005.stderr index 8a158f5c8d..66e6fa9f69 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail005.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail005.stderr @@ -1,5 +1,5 @@ tcfail005.hs:3:9: - Couldn't match expected type `[t0]' with actual type `(t1, t2)' + Couldn't match expected type `[t0]' with actual type `(t1, Char)' In the expression: (1, 'a') In a pattern binding: (h : i) = (1, 'a') diff --git a/testsuite/tests/typecheck/should_fail/tcfail008.stderr b/testsuite/tests/typecheck/should_fail/tcfail008.stderr index 2d31ee6034..a6d97c71af 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail008.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail008.stderr @@ -1,7 +1,24 @@ +tcfail008.hs:3:5: + No instance for (Num a0) + arising from the literal `1' + The type variable `a0' is ambiguous + Possible cause: the monomorphism restriction applied to the following: + o :: [a0] (bound at tcfail008.hs:3:1) + Probable fix: give these definition(s) an explicit type signature + or use -XNoMonomorphismRestriction + In the first argument of `(:)', namely `1' + In the expression: 1 : 2 + In an equation for `o': o = 1 : 2 + tcfail008.hs:3:7: No instance for (Num [a0]) arising from the literal `2' + The type variable `a0' is ambiguous + Possible cause: the monomorphism restriction applied to the following: + o :: [a0] (bound at tcfail008.hs:3:1) + Probable fix: give these definition(s) an explicit type signature + or use -XNoMonomorphismRestriction Possible fix: add an instance declaration for (Num [a0]) In the second argument of `(:)', namely `2' In the expression: 1 : 2 diff --git a/testsuite/tests/typecheck/should_fail/tcfail010.stderr b/testsuite/tests/typecheck/should_fail/tcfail010.stderr index 20a6d222a7..9371d51dcd 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail010.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail010.stderr @@ -1,8 +1,13 @@ -
-tcfail010.hs:3:17:
- No instance for (Num [t0])
- arising from a use of `+'
- Possible fix: add an instance declaration for (Num [t0])
- In the expression: z + 2
- In the expression: \ (y : z) -> z + 2
- In an equation for `q': q = \ (y : z) -> z + 2
+ +tcfail010.hs:3:17: + No instance for (Num [t0]) + arising from a use of `+' + The type variable `t0' is ambiguous + Possible cause: the monomorphism restriction applied to the following: + q :: [t0] -> [t0] (bound at tcfail010.hs:3:1) + Probable fix: give these definition(s) an explicit type signature + or use -XNoMonomorphismRestriction + Possible fix: add an instance declaration for (Num [t0]) + In the expression: z + 2 + In the expression: \ (y : z) -> z + 2 + In an equation for `q': q = \ (y : z) -> z + 2 diff --git a/testsuite/tests/typecheck/should_fail/tcfail016.stderr b/testsuite/tests/typecheck/should_fail/tcfail016.stderr index 6420918b37..6c1fa9ce62 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail016.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail016.stderr @@ -1,7 +1,16 @@ tcfail016.hs:9:20: - Couldn't match expected type `Expr t0' - with actual type `AnnExpr t0' + Couldn't match type `(t0, Expr t0)' with `Expr t0' + Expected type: Expr t0 + Actual type: AnnExpr t0 In the first argument of `g', namely `e1' In the first argument of `(++)', namely `(g e1)' In the expression: (g e1) ++ (g e2) + +tcfail016.hs:9:28: + Couldn't match type `(t0, Expr t0)' with `Expr t0' + Expected type: Expr t0 + Actual type: AnnExpr t0 + In the first argument of `g', namely `e2' + In the second argument of `(++)', namely `(g e2)' + In the expression: (g e1) ++ (g e2) diff --git a/testsuite/tests/typecheck/should_fail/tcfail018.stderr b/testsuite/tests/typecheck/should_fail/tcfail018.stderr index 67ee509537..1aa13624e9 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail018.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail018.stderr @@ -2,6 +2,11 @@ tcfail018.hs:5:10: No instance for (Num [t0]) arising from the literal `1' + The type variable `t0' is ambiguous + Possible cause: the monomorphism restriction applied to the following: + a :: t0 (bound at tcfail018.hs:5:2) + Probable fix: give these definition(s) an explicit type signature + or use -XNoMonomorphismRestriction Possible fix: add an instance declaration for (Num [t0]) In the expression: 1 In a pattern binding: (a : []) = 1 diff --git a/testsuite/tests/typecheck/should_fail/tcfail040.stderr b/testsuite/tests/typecheck/should_fail/tcfail040.stderr index 19020b609d..cd5ef7a742 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail040.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail040.stderr @@ -1,8 +1,9 @@ -
-tcfail040.hs:19:5:
- Ambiguous type variable `a0' in the constraint:
- (ORD a0) arising from a use of `<<'
- Probable fix: add a type signature that fixes these type variable(s)
- In the first argument of `(===)', namely `(<<)'
- In the expression: (<<) === (<<)
- In an equation for `f': f = (<<) === (<<)
+ +tcfail040.hs:19:5: + No instance for (ORD a0) + arising from a use of `<<' + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the first argument of `(===)', namely `(<<)' + In the expression: (<<) === (<<) + In an equation for `f': f = (<<) === (<<) diff --git a/testsuite/tests/typecheck/should_fail/tcfail043.stderr b/testsuite/tests/typecheck/should_fail/tcfail043.stderr index 7cd3faf53e..cf161d4af2 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail043.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail043.stderr @@ -1,21 +1,37 @@ - -tcfail043.hs:38:17: - Ambiguous type variable `a0' in the constraints: - (Ord_ a0) arising from a use of `gt' at tcfail043.hs:38:17-18 - (Eq_ a0) arising from a use of `eq' at tcfail043.hs:40:25-26 - Possible cause: the monomorphism restriction applied to the following: - search :: a0 -> [a0] -> Bool (bound at tcfail043.hs:37:1) - Probable fix: give these definition(s) an explicit type signature - or use -XNoMonomorphismRestriction - In the expression: gt (hd bs) a - In the expression: - if gt (hd bs) a then - False - else - if eq a (hd bs) then True else search a (tl bs) - In the expression: - \ a bs - -> if gt (hd bs) a then - False - else - if eq a (hd bs) then True else search a (tl bs) +
+tcfail043.hs:38:17:
+ No instance for (Ord_ a0)
+ arising from a use of `gt'
+ The type variable `a0' is ambiguous
+ Possible cause: the monomorphism restriction applied to the following:
+ search :: a0 -> [a0] -> Bool (bound at tcfail043.hs:37:1)
+ Probable fix: give these definition(s) an explicit type signature
+ or use -XNoMonomorphismRestriction
+ In the expression: gt (hd bs) a
+ In the expression:
+ if gt (hd bs) a then
+ False
+ else
+ if eq a (hd bs) then True else search a (tl bs)
+ In the expression:
+ \ a bs
+ -> if gt (hd bs) a then
+ False
+ else
+ if eq a (hd bs) then True else search a (tl bs)
+
+tcfail043.hs:40:25:
+ No instance for (Eq_ a0)
+ arising from a use of `eq'
+ The type variable `a0' is ambiguous
+ Possible cause: the monomorphism restriction applied to the following:
+ search :: a0 -> [a0] -> Bool (bound at tcfail043.hs:37:1)
+ Probable fix: give these definition(s) an explicit type signature
+ or use -XNoMonomorphismRestriction
+ In the expression: eq a (hd bs)
+ In the expression: if eq a (hd bs) then True else search a (tl bs)
+ In the expression:
+ if gt (hd bs) a then
+ False
+ else
+ if eq a (hd bs) then True else search a (tl bs)
diff --git a/testsuite/tests/typecheck/should_fail/tcfail065.stderr b/testsuite/tests/typecheck/should_fail/tcfail065.stderr index 0621cd74d9..3e9aecf817 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail065.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail065.stderr @@ -1,11 +1,11 @@ -
-tcfail065.hs:29:20:
- Couldn't match type `x1' with `x'
- `x1' is a rigid type variable bound by
- the type signature for setX :: x1 -> X x -> X x
- at tcfail065.hs:29:3
- `x' is a rigid type variable bound by
- the instance declaration at tcfail065.hs:28:18
- In the first argument of `X', namely `x'
- In the expression: X x
- In an equation for `setX': setX x (X _) = X x
+ +tcfail065.hs:29:20: + Couldn't match expected type `x' with actual type `x1' + `x' is a rigid type variable bound by + the instance declaration at tcfail065.hs:28:18 + `x1' is a rigid type variable bound by + the type signature for setX :: x1 -> X x -> X x + at tcfail065.hs:29:3 + In the first argument of `X', namely `x' + In the expression: X x + In an equation for `setX': setX x (X _) = X x diff --git a/testsuite/tests/typecheck/should_fail/tcfail067.stderr b/testsuite/tests/typecheck/should_fail/tcfail067.stderr index 039a4e61f9..513f5e9977 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail067.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail067.stderr @@ -30,12 +30,12 @@ tcfail067.hs:46:12: = show value ++ " :" ++ show lower ++ ".." ++ show upper tcfail067.hs:61:12: - Could not deduce (Ord a, Show a) + Could not deduce (Show a, Ord a) arising from a use of `numSubRangeNegate' from the context (Num a) bound by the instance declaration at tcfail067.hs:60:10-34 Possible fix: - add (Ord a, Show a) to the context of the instance declaration + add (Show a, Ord a) to the context of the instance declaration In the expression: numSubRangeNegate In an equation for `negate': negate = numSubRangeNegate In the instance declaration for `Num (SubRange a)' diff --git a/testsuite/tests/typecheck/should_fail/tcfail068.stderr b/testsuite/tests/typecheck/should_fail/tcfail068.stderr index 286d0e8e79..11d39617db 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail068.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail068.stderr @@ -1,91 +1,97 @@ -
-tcfail068.hs:14:9:
- Could not deduce (s1 ~ s)
- from the context (Constructed a)
- bound by the type signature for
- itgen :: Constructed a => (Int, Int) -> a -> IndTree s a
- at tcfail068.hs:(12,1)-(14,31)
- `s1' is a rigid type variable bound by
- a type expected by the context: GHC.ST.ST s1 (IndTree s a)
- at tcfail068.hs:13:9
- `s' is a rigid type variable bound by
- the type signature for
- itgen :: Constructed a => (Int, Int) -> a -> IndTree s a
- at tcfail068.hs:12:1
- Expected type: GHC.ST.ST s (IndTree s1 a)
- Actual type: GHC.ST.ST s (STArray s (Int, Int) a)
- In the return type of a call of `newSTArray'
- In the first argument of `runST', namely
- `(newSTArray ((1, 1), n) x)'
-
-tcfail068.hs:19:21:
- Could not deduce (s ~ s1)
- from the context (Constructed a)
- bound by the type signature for
- itiap :: Constructed a =>
- (Int, Int) -> (a -> a) -> IndTree s a -> IndTree s a
- at tcfail068.hs:(17,1)-(21,19)
- `s' is a rigid type variable bound by
- the type signature for
- itiap :: Constructed a =>
- (Int, Int) -> (a -> a) -> IndTree s a -> IndTree s a
- at tcfail068.hs:17:1
- `s1' is a rigid type variable bound by
- a type expected by the context: GHC.ST.ST s1 (IndTree s a)
- at tcfail068.hs:18:9
- Expected type: STArray s1 (Int, Int) a
- Actual type: IndTree s a
- In the first argument of `readSTArray', namely `arr'
- In the first argument of `(>>=)', namely `readSTArray arr i'
-
-tcfail068.hs:24:35:
- Could not deduce (s ~ s1)
- from the context (Constructed a)
- bound by the type signature for
- itrap :: Constructed a =>
- ((Int, Int), (Int, Int)) -> (a -> a) -> IndTree s a -> IndTree s a
- at tcfail068.hs:(24,1)-(32,41)
- `s' is a rigid type variable bound by
- the type signature for
- itrap :: Constructed a =>
- ((Int, Int), (Int, Int)) -> (a -> a) -> IndTree s a -> IndTree s a
- at tcfail068.hs:24:1
- `s1' is a rigid type variable bound by
- a type expected by the context: GHC.ST.ST s1 (IndTree s a)
- at tcfail068.hs:24:29
- Expected type: GHC.ST.ST s1 (IndTree s a)
- Actual type: GHC.ST.ST s (IndTree s a)
- In the return type of a call of itrap'
- In the first argument of `runST', namely `(itrap' i k)'
-
-tcfail068.hs:36:46:
- Could not deduce (s ~ s1)
- from the context (Constructed b)
- bound by the type signature for
- itrapstate :: Constructed b =>
- ((Int, Int), (Int, Int))
- -> (a -> b -> (a, b))
- -> ((Int, Int) -> c -> a)
- -> (a -> c)
- -> c
- -> IndTree s b
- -> (c, IndTree s b)
- at tcfail068.hs:(36,1)-(45,66)
- `s' is a rigid type variable bound by
- the type signature for
- itrapstate :: Constructed b =>
- ((Int, Int), (Int, Int))
- -> (a -> b -> (a, b))
- -> ((Int, Int) -> c -> a)
- -> (a -> c)
- -> c
- -> IndTree s b
- -> (c, IndTree s b)
- at tcfail068.hs:36:1
- `s1' is a rigid type variable bound by
- a type expected by the context: GHC.ST.ST s1 (c, IndTree s b)
- at tcfail068.hs:36:40
- Expected type: GHC.ST.ST s1 (c, IndTree s b)
- Actual type: GHC.ST.ST s (c, IndTree s b)
- In the return type of a call of itrapstate'
- In the first argument of `runST', namely `(itrapstate' i k s)'
+ +tcfail068.hs:14:9: + Could not deduce (s1 ~ s) + from the context (Constructed a) + bound by the type signature for + itgen :: Constructed a => (Int, Int) -> a -> IndTree s a + at tcfail068.hs:(12,1)-(14,31) + `s1' is a rigid type variable bound by + a type expected by the context: GHC.ST.ST s1 (IndTree s a) + at tcfail068.hs:13:9 + `s' is a rigid type variable bound by + the type signature for + itgen :: Constructed a => (Int, Int) -> a -> IndTree s a + at tcfail068.hs:12:1 + Expected type: GHC.ST.ST s1 (IndTree s a) + Actual type: GHC.ST.ST s1 (STArray s1 (Int, Int) a) + In the return type of a call of `newSTArray' + In the first argument of `runST', namely + `(newSTArray ((1, 1), n) x)' + In the expression: runST (newSTArray ((1, 1), n) x) + +tcfail068.hs:19:21: + Could not deduce (s ~ s1) + from the context (Constructed a) + bound by the type signature for + itiap :: Constructed a => + (Int, Int) -> (a -> a) -> IndTree s a -> IndTree s a + at tcfail068.hs:(17,1)-(21,19) + `s' is a rigid type variable bound by + the type signature for + itiap :: Constructed a => + (Int, Int) -> (a -> a) -> IndTree s a -> IndTree s a + at tcfail068.hs:17:1 + `s1' is a rigid type variable bound by + a type expected by the context: GHC.ST.ST s1 (IndTree s a) + at tcfail068.hs:18:9 + Expected type: STArray s1 (Int, Int) a + Actual type: IndTree s a + In the first argument of `readSTArray', namely `arr' + In the first argument of `(>>=)', namely `readSTArray arr i' + In the first argument of `runST', namely + `(readSTArray arr i + >>= \ val -> writeSTArray arr i (f val) >> return arr)' + +tcfail068.hs:24:35: + Could not deduce (s ~ s1) + from the context (Constructed a) + bound by the type signature for + itrap :: Constructed a => + ((Int, Int), (Int, Int)) -> (a -> a) -> IndTree s a -> IndTree s a + at tcfail068.hs:(24,1)-(32,41) + `s' is a rigid type variable bound by + the type signature for + itrap :: Constructed a => + ((Int, Int), (Int, Int)) -> (a -> a) -> IndTree s a -> IndTree s a + at tcfail068.hs:24:1 + `s1' is a rigid type variable bound by + a type expected by the context: GHC.ST.ST s1 (IndTree s a) + at tcfail068.hs:24:29 + Expected type: GHC.ST.ST s1 (IndTree s a) + Actual type: GHC.ST.ST s (IndTree s a) + In the return type of a call of itrap' + In the first argument of `runST', namely `(itrap' i k)' + In the expression: runST (itrap' i k) + +tcfail068.hs:36:46: + Could not deduce (s ~ s1) + from the context (Constructed b) + bound by the type signature for + itrapstate :: Constructed b => + ((Int, Int), (Int, Int)) + -> (a -> b -> (a, b)) + -> ((Int, Int) -> c -> a) + -> (a -> c) + -> c + -> IndTree s b + -> (c, IndTree s b) + at tcfail068.hs:(36,1)-(45,66) + `s' is a rigid type variable bound by + the type signature for + itrapstate :: Constructed b => + ((Int, Int), (Int, Int)) + -> (a -> b -> (a, b)) + -> ((Int, Int) -> c -> a) + -> (a -> c) + -> c + -> IndTree s b + -> (c, IndTree s b) + at tcfail068.hs:36:1 + `s1' is a rigid type variable bound by + a type expected by the context: GHC.ST.ST s1 (c, IndTree s b) + at tcfail068.hs:36:40 + Expected type: GHC.ST.ST s1 (c, IndTree s b) + Actual type: GHC.ST.ST s (c, IndTree s b) + In the return type of a call of itrapstate' + In the first argument of `runST', namely `(itrapstate' i k s)' + In the expression: runST (itrapstate' i k s) diff --git a/testsuite/tests/typecheck/should_fail/tcfail072.stderr b/testsuite/tests/typecheck/should_fail/tcfail072.stderr index 469e75849a..4d6bd867b2 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail072.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail072.stderr @@ -1,14 +1,11 @@ tcfail072.hs:23:13: - Ambiguous type variable `p0' in the constraint: - (Ord p0) arising from a use of `g' - Probable fix: add a type signature that fixes these type variable(s) - In the expression: g A - In an equation for `g': g (B _ _) = g A - -tcfail072.hs:23:13: - Ambiguous type variable `q0' in the constraint: - (Ord q0) arising from a use of `g' - Probable fix: add a type signature that fixes these type variable(s) + Could not deduce (Ord p0, Ord q0) arising from a use of `g' + from the context (Ord p, Ord q) + bound by the type signature for + g :: (Ord p, Ord q) => AB p q -> Bool + at tcfail072.hs:23:1-15 + The type variables `p0', `q0' are ambiguous + Possible fix: add a type signature that fixes these type variable(s) In the expression: g A In an equation for `g': g (B _ _) = g A diff --git a/testsuite/tests/typecheck/should_fail/tcfail076.stderr b/testsuite/tests/typecheck/should_fail/tcfail076.stderr index 9c380de958..4ca4cf403b 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail076.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail076.stderr @@ -11,3 +11,4 @@ tcfail076.hs:18:82: Actual type: m res In the return type of a call of `cont' In the expression: cont a + In the first argument of `KContT', namely `(\ cont' -> cont a)' diff --git a/testsuite/tests/typecheck/should_fail/tcfail080.hs b/testsuite/tests/typecheck/should_fail/tcfail080.hs index b2a62cea54..fa77ad8242 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail080.hs +++ b/testsuite/tests/typecheck/should_fail/tcfail080.hs @@ -11,7 +11,9 @@ -- Of course, it'd be hard to fill in the "..." in this particular -- case, but that relies on observations about the form of the types -- of the class methods, surely beyond what a compiler should do. --- That's why GHC accepts it +-- +-- Still, the type is ambiguous because there's nothing to fix 'c' + module ShouldFail where diff --git a/testsuite/tests/typecheck/should_fail/tcfail080.stderr b/testsuite/tests/typecheck/should_fail/tcfail080.stderr index e69de29bb2..520078682b 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail080.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail080.stderr @@ -0,0 +1,14 @@ + +tcfail080.hs:27:1: + Could not deduce (Collection c0 a) + arising from the ambiguity check for `q' + from the context (Collection c a) + bound by the inferred type for `q': Collection c a => a -> Bool + at tcfail080.hs:27:1-27 + The type variable `c0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + When checking that `q' + has the inferred type `forall (c :: * -> *) a. + Collection c a => + a -> Bool' + Probable cause: the inferred type is ambiguous diff --git a/testsuite/tests/typecheck/should_fail/tcfail099.stderr b/testsuite/tests/typecheck/should_fail/tcfail099.stderr index f97c5a1161..aa7eb99197 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail099.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail099.stderr @@ -1,13 +1,13 @@ tcfail099.hs:9:20: - Couldn't match type `t' with `a' - `t' is a rigid type variable bound by - the inferred type of call :: DS -> t -> Int at tcfail099.hs:9:1 + Couldn't match expected type `a' with actual type `t' `a' is a rigid type variable bound by a pattern with constructor C :: forall a. (a -> Int) -> DS, in an equation for `call' at tcfail099.hs:9:7 + `t' is a rigid type variable bound by + the inferred type of call :: DS -> t -> Int at tcfail099.hs:9:1 In the first argument of `f', namely `arg' In the expression: f arg In an equation for `call': call (C f) arg = f arg diff --git a/testsuite/tests/typecheck/should_fail/tcfail103.stderr b/testsuite/tests/typecheck/should_fail/tcfail103.stderr index 2602859db4..7d6e4dfd6c 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail103.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail103.stderr @@ -1,11 +1,12 @@ -
-tcfail103.hs:15:23:
- Couldn't match type `t' with `s'
- `t' is a rigid type variable bound by
- the type signature for f :: ST t Int at tcfail103.hs:11:1
- `s' is a rigid type variable bound by
- the type signature for g :: ST s Int at tcfail103.hs:15:9
- Expected type: STRef s Int
- Actual type: STRef t Int
- In the first argument of `readSTRef', namely `v'
- In the expression: readSTRef v
+ +tcfail103.hs:15:23: + Couldn't match type `t' with `s' + `t' is a rigid type variable bound by + the type signature for f :: ST t Int at tcfail103.hs:11:1 + `s' is a rigid type variable bound by + the type signature for g :: ST s Int at tcfail103.hs:15:9 + Expected type: STRef s Int + Actual type: STRef t Int + In the first argument of `readSTRef', namely `v' + In the expression: readSTRef v + In an equation for `g': g = readSTRef v diff --git a/testsuite/tests/typecheck/should_fail/tcfail104.stderr b/testsuite/tests/typecheck/should_fail/tcfail104.stderr index 8bd4608bde..5e6fc3bb1f 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail104.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail104.stderr @@ -1,6 +1,6 @@ tcfail104.hs:16:19: - Couldn't match expected type `a0 -> a0' + Couldn't match expected type `Char -> Char' with actual type `forall a. a -> a' In the expression: x In the expression: (\ x -> x) diff --git a/testsuite/tests/typecheck/should_fail/tcfail128.stderr b/testsuite/tests/typecheck/should_fail/tcfail128.stderr index a3c99a9548..90793cf7d0 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail128.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail128.stderr @@ -2,6 +2,8 @@ tcfail128.hs:18:16: No instance for (Data.Array.Base.MArray b0 FlatVector IO) arising from a use of `thaw' + The type variable `b0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Possible fix: add an instance declaration for (Data.Array.Base.MArray b0 FlatVector IO) diff --git a/testsuite/tests/typecheck/should_fail/tcfail133.stderr b/testsuite/tests/typecheck/should_fail/tcfail133.stderr index 2808159950..fb506dd7d1 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail133.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail133.stderr @@ -2,9 +2,21 @@ tcfail133.hs:2:61: Warning: -XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language. +tcfail133.hs:68:7: + No instance for (Show a0) + arising from a use of `show' + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: show + In the expression: show $ add (One :@ Zero) (One :@ One) + In an equation for `foo': + foo = show $ add (One :@ Zero) (One :@ One) + tcfail133.hs:68:14: No instance for (AddDigit (Zero :@ (One :@ One)) One a0) arising from a use of `add' + The type variable `a0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) Possible fix: add an instance declaration for (AddDigit (Zero :@ (One :@ One)) One a0) diff --git a/testsuite/tests/typecheck/should_fail/tcfail140.stderr b/testsuite/tests/typecheck/should_fail/tcfail140.stderr index bc888d2309..f24a2a7f82 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail140.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail140.stderr @@ -1,22 +1,24 @@ tcfail140.hs:10:7: + Couldn't match expected type `a0 -> t0' with actual type `Int' The function `f' is applied to two arguments, but its type `Int -> Int' has only one In the expression: f 3 9 In an equation for `bar': bar = f 3 9 tcfail140.hs:12:10: + Couldn't match expected type `a0 -> t0' with actual type `Int' The operator `f' takes two arguments, but its type `Int -> Int' has only one In the expression: 3 `f` 4 In an equation for `rot': rot xs = 3 `f` 4 tcfail140.hs:14:15: + Couldn't match expected type `a0 -> b0' with actual type `Int' The operator `f' takes two arguments, but its type `Int -> Int' has only one In the first argument of `map', namely `(3 `f`)' In the expression: map (3 `f`) xs - In an equation for `bot': bot xs = map (3 `f`) xs tcfail140.hs:16:8: Constructor `Just' should have 1 argument, but has been given none @@ -25,5 +27,6 @@ tcfail140.hs:16:8: In the expression: ((\ Just x -> x) :: Maybe a -> a) (Just 1) tcfail140.hs:19:1: + Couldn't match expected type `t0 -> Bool' with actual type `Int' The equation(s) for `g' have two arguments, but its type `Int -> Int' has only one diff --git a/testsuite/tests/typecheck/should_fail/tcfail142.stderr b/testsuite/tests/typecheck/should_fail/tcfail142.stderr index cd0161658f..3fd20cc2f9 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail142.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail142.stderr @@ -1,8 +1,9 @@ tcfail142.hs:21:12: - Ambiguous type variables `a0', `r0' in the constraint: - (Bar a0 r0) arising from a use of `bar' - Probable fix: add a type signature that fixes these type variable(s) + No instance for (Bar a0 r0) + arising from a use of `bar' + The type variables `a0', `r0' are ambiguous + Possible fix: add a type signature that fixes these type variable(s) In the first argument of `foo', namely `bar' In the expression: foo bar In an equation for `test': test = foo bar diff --git a/testsuite/tests/typecheck/should_fail/tcfail143.stderr b/testsuite/tests/typecheck/should_fail/tcfail143.stderr index 2c3857e0ee..846f8c0252 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail143.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail143.stderr @@ -1,22 +1,11 @@ -
-tcfail143.hs:29:9:
- Couldn't match type `S Z' with `Z'
- When using functional dependencies to combine
- MinMax a Z Z a,
- arising from the dependency `a b -> c d'
- in the instance declaration at tcfail143.hs:11:10
- MinMax (S Z) Z Z Z,
- arising from a use of `extend' at tcfail143.hs:29:9-16
- In the expression: n1 `extend` n0
- In an equation for `t2': t2 = n1 `extend` n0
-
-tcfail143.hs:29:9:
- Couldn't match type `Z' with `S Z'
- When using functional dependencies to combine
- MinMax Z Z Z Z,
- arising from the dependency `b c d -> a'
- in the instance declaration at tcfail143.hs:10:10
- MinMax (S Z) Z Z Z,
- arising from a use of `extend' at tcfail143.hs:29:9-16
- In the expression: n1 `extend` n0
- In an equation for `t2': t2 = n1 `extend` n0
+ +tcfail143.hs:29:9: + Couldn't match type `S Z' with `Z' + When using functional dependencies to combine + MinMax a Z Z a, + arising from the dependency `a b -> c d' + in the instance declaration at tcfail143.hs:11:10 + MinMax (S Z) Z Z Z, + arising from a use of `extend' at tcfail143.hs:29:9-16 + In the expression: n1 `extend` n0 + In an equation for `t2': t2 = n1 `extend` n0 diff --git a/testsuite/tests/typecheck/should_fail/tcfail153.stderr b/testsuite/tests/typecheck/should_fail/tcfail153.stderr index 0b40df47d1..ca0b42b054 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail153.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail153.stderr @@ -1,6 +1,6 @@ tcfail153.hs:6:9: - Couldn't match type `a' with `Bool' + Couldn't match expected type `a' with actual type `Bool' `a' is a rigid type variable bound by the type signature for f :: a -> [a] at tcfail153.hs:6:1 In the first argument of `g', namely `x' diff --git a/testsuite/tests/typecheck/should_fail/tcfail168.hs b/testsuite/tests/typecheck/should_fail/tcfail168.hs index 94a78a93b0..b6762d888d 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail168.hs +++ b/testsuite/tests/typecheck/should_fail/tcfail168.hs @@ -63,4 +63,3 @@ foo = do putChar 'a' putChar 'a' putChar 'a' - diff --git a/testsuite/tests/typecheck/should_fail/tcfail168.stderr b/testsuite/tests/typecheck/should_fail/tcfail168.stderr index f16f65bdb1..a6a5064562 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail168.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail168.stderr @@ -1,12 +1,17 @@ -tcfail168.hs:8:11: - Couldn't match expected type `Char -> a0' with actual type `IO ()' - In the return type of a call of `putChar' - Probable cause: `putChar' is applied to too many arguments - In a stmt of a 'do' block: putChar 'a' +tcfail168.hs:7:11: + Couldn't match expected type `IO a0' + with actual type `Char -> IO ()' + In a stmt of a 'do' block: putChar In the expression: do { putChar; putChar 'a'; putChar 'a'; putChar 'a'; .... } + In an equation for `foo': + foo + = do { putChar; + putChar 'a'; + putChar 'a'; + .... } diff --git a/testsuite/tests/typecheck/should_fail/tcfail171.stderr b/testsuite/tests/typecheck/should_fail/tcfail171.stderr index b4efd33e32..714edb1f12 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail171.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail171.stderr @@ -1,6 +1,6 @@ tcfail171.hs:9:10: - No instances for (PrintfType b, PrintfArg a) + No instances for (PrintfArg a, PrintfType b) arising from a use of `printf' In the expression: printf "0x%x" x In an equation for `phex': phex x = printf "0x%x" x diff --git a/testsuite/tests/typecheck/should_fail/tcfail174.stderr b/testsuite/tests/typecheck/should_fail/tcfail174.stderr index cf8c4cc9c0..89135d656e 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail174.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail174.stderr @@ -1,29 +1,31 @@ -
-tcfail174.hs:9:10:
- Couldn't match expected type `forall a. a -> a'
- with actual type `a0 -> a0'
- In the first argument of `Base', namely `id'
- In the expression: Base id
- In an equation for `g': g = Base id
-
-tcfail174.hs:13:14:
- Couldn't match type `a' with `a1'
- `a' is a rigid type variable bound by
- the inferred type of h1 :: Capture a at tcfail174.hs:13:1
- `a1' is a rigid type variable bound by
- the type forall a. a -> a at tcfail174.hs:13:14
- Expected type: Capture (forall x. x -> a)
- Actual type: Capture (forall a. a -> a)
- In the first argument of `Capture', namely `g'
- In the expression: Capture g
-
-tcfail174.hs:16:14:
- Couldn't match type `a' with `b'
- `a' is a rigid type variable bound by
- the type forall a. a -> a at tcfail174.hs:16:14
- `b' is a rigid type variable bound by
- the type signature for h2 :: Capture b at tcfail174.hs:16:1
- Expected type: Capture (forall x. x -> b)
- Actual type: Capture (forall a. a -> a)
- In the first argument of `Capture', namely `g'
- In the expression: Capture g
+ +tcfail174.hs:9:10: + Couldn't match expected type `forall a. a -> a' + with actual type `a0 -> a0' + In the first argument of `Base', namely `id' + In the expression: Base id + In an equation for `g': g = Base id + +tcfail174.hs:13:14: + Couldn't match type `a' with `a1' + `a' is a rigid type variable bound by + the inferred type of h1 :: Capture a at tcfail174.hs:13:1 + `a1' is a rigid type variable bound by + the type forall a1. a1 -> a1 at tcfail174.hs:13:14 + Expected type: Capture (forall x. x -> a) + Actual type: Capture (forall a. a -> a) + In the first argument of `Capture', namely `g' + In the expression: Capture g + In an equation for `h1': h1 = Capture g + +tcfail174.hs:16:14: + Couldn't match type `a' with `b' + `a' is a rigid type variable bound by + the type forall a. a -> a at tcfail174.hs:16:14 + `b' is a rigid type variable bound by + the type signature for h2 :: Capture b at tcfail174.hs:16:1 + Expected type: Capture (forall x. x -> b) + Actual type: Capture (forall a. a -> a) + In the first argument of `Capture', namely `g' + In the expression: Capture g + In an equation for `h2': h2 = Capture g diff --git a/testsuite/tests/typecheck/should_fail/tcfail175.stderr b/testsuite/tests/typecheck/should_fail/tcfail175.stderr index f181c00bcd..4fe5bfbe41 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail175.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail175.stderr @@ -1,6 +1,7 @@ tcfail175.hs:11:1: - Couldn't match type `a' with `String -> String -> String' + Couldn't match expected type `a' + with actual type `String -> String -> String' `a' is a rigid type variable bound by the type signature for evalRHS :: Int -> a at tcfail175.hs:11:1 The equation(s) for `evalRHS' have three arguments, diff --git a/testsuite/tests/typecheck/should_fail/tcfail177.stderr b/testsuite/tests/typecheck/should_fail/tcfail177.stderr index 3107d1e668..dc622daafa 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail177.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail177.stderr @@ -7,3 +7,165 @@ tcfail177.hs:10:12: [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] In an equation for `allTests': allTests = foo [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", ....] + +tcfail177.hs:20:13: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:20:20: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:20:27: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:21:13: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:21:20: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:21:27: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:22:13: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:22:20: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:22:27: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:23:13: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:23:20: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:23:27: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:24:13: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:24:20: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:24:27: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:25:13: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:25:20: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] + +tcfail177.hs:25:27: + Couldn't match expected type `Bool' with actual type `[Char]' + In the expression: "Two" + In the first argument of `foo', namely + `[a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....]' + In the expression: + foo + [a ~?= b, "Three" ~?= "3", "Four" ~?= "4", "Five" ~?= "5", ....] diff --git a/testsuite/tests/typecheck/should_fail/tcfail178.stderr b/testsuite/tests/typecheck/should_fail/tcfail178.stderr index 63119af75e..66773a2fea 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail178.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail178.stderr @@ -1,10 +1,11 @@ tcfail178.hs:15:7: - Couldn't match expected type `[a0]' with actual type `()' + Couldn't match type `()' with `[a0]' Expected type: Bool -> [a0] Actual type: Bool -> () In the first argument of `a', namely `y' In the expression: a y + In an equation for `c': c = a y tcfail178.hs:18:7: Couldn't match expected type `Bool -> [a0]' with actual type `()' diff --git a/testsuite/tests/typecheck/should_fail/tcfail179.stderr b/testsuite/tests/typecheck/should_fail/tcfail179.stderr index 6d723db452..a24d404e15 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail179.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail179.stderr @@ -1,13 +1,13 @@ -
-tcfail179.hs:14:39:
- Couldn't match type `x' with `s'
- `x' is a rigid type variable bound by
- a pattern with constructor
- T :: forall s x. (s -> (x -> s) -> (x, s, Int)) -> T s,
- in a case alternative
- at tcfail179.hs:14:14
- `s' is a rigid type variable bound by
- the type signature for run :: T s -> Int at tcfail179.hs:13:1
- In the first argument of `g', namely `x'
- In the expression: g x id
- In a pattern binding: (x, _, b) = g x id
+ +tcfail179.hs:14:39: + Couldn't match expected type `s' with actual type `x' + `s' is a rigid type variable bound by + the type signature for run :: T s -> Int at tcfail179.hs:13:1 + `x' is a rigid type variable bound by + a pattern with constructor + T :: forall s x. (s -> (x -> s) -> (x, s, Int)) -> T s, + in a case alternative + at tcfail179.hs:14:14 + In the first argument of `g', namely `x' + In the expression: g x id + In a pattern binding: (x, _, b) = g x id diff --git a/testsuite/tests/typecheck/should_fail/tcfail181.stderr b/testsuite/tests/typecheck/should_fail/tcfail181.stderr index 59fe8b83af..25e6cbf2af 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail181.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail181.stderr @@ -1,8 +1,9 @@ tcfail181.hs:17:9: - Ambiguous type variable `m0' in the constraint: - (Monad m0) arising from a use of `foo' - Probable fix: add a type signature that fixes these type variable(s) + No instance for (Monad m0) + arising from a use of `foo' + The type variable `m0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) In the expression: foo In the expression: foo {bar = return True} In an equation for `wog': wog x = foo {bar = return True} diff --git a/testsuite/tests/typecheck/should_fail/tcfail186.stderr b/testsuite/tests/typecheck/should_fail/tcfail186.stderr index 3f4504b810..b22e672ae6 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail186.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail186.stderr @@ -1,7 +1,8 @@ tcfail186.hs:7:9: - Couldn't match expected type `PhantomSyn a0' - with actual type `[Char]' + Couldn't match type `[Char]' with `Int' + Expected type: PhantomSyn a0 + Actual type: [Char] In the first argument of `f', namely `"hoo"' In the expression: f "hoo" In an equation for `foo': foo = f "hoo" diff --git a/testsuite/tests/typecheck/should_fail/tcfail189.stderr b/testsuite/tests/typecheck/should_fail/tcfail189.stderr index b3a6cb4b96..6364cc2d5b 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail189.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail189.stderr @@ -1,8 +1,9 @@ tcfail189.hs:10:31: - Couldn't match expected type `a -> t0' with actual type `[a0]' - Expected type: (a -> t0) -> [a] -> [[a]] + Couldn't match type `[a0]' with `a -> a1' + Expected type: (a -> a1) -> [a] -> [[a]] Actual type: [a0] -> [a0] In the return type of a call of `take' Probable cause: `take' is applied to too many arguments In the expression: take 2 + In a stmt of a list comprehension: then group by x using take 2 diff --git a/testsuite/tests/typecheck/should_fail/tcfail191.stderr b/testsuite/tests/typecheck/should_fail/tcfail191.stderr index f69bd2c263..a276a04eae 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail191.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail191.stderr @@ -1,9 +1,10 @@ -
-tcfail191.hs:11:26:
- Couldn't match type `a' with `[a]'
- `a' is a rigid type variable bound by
- a type expected by the context: [a] -> [[a]] at tcfail191.hs:11:9
- Expected type: [a] -> [[a]]
- Actual type: [a] -> [a]
- In the return type of a call of `take'
- In the expression: take 5
+ +tcfail191.hs:11:26: + Couldn't match type `a' with `[a]' + `a' is a rigid type variable bound by + a type expected by the context: [a] -> [[a]] at tcfail191.hs:11:9 + Expected type: [a] -> [[a]] + Actual type: [a] -> [a] + In the return type of a call of `take' + In the expression: take 5 + In a stmt of a list comprehension: then group using take 5 diff --git a/testsuite/tests/typecheck/should_fail/tcfail192.stderr b/testsuite/tests/typecheck/should_fail/tcfail192.stderr index 097c02fab5..349121975c 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail192.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail192.stderr @@ -1,19 +1,20 @@ -
-tcfail192.hs:8:11:
- No instance for (Num [[Char]])
- arising from a use of `+'
- Possible fix: add an instance declaration for (Num [[Char]])
- In the expression: x + 1
- In the expression:
- [x + 1 | x <- ["Hello", "World"], then group using take 5]
- In an equation for `foo':
- foo = [x + 1 | x <- ["Hello", "World"], then group using take 5]
-
-tcfail192.hs:10:26:
- Couldn't match type `a' with `[a]'
- `a' is a rigid type variable bound by
- a type expected by the context: [a] -> [[a]] at tcfail192.hs:10:9
- Expected type: [a] -> [[a]]
- Actual type: [a] -> [a]
- In the return type of a call of `take'
- In the expression: take 5
+ +tcfail192.hs:8:11: + No instance for (Num [[Char]]) + arising from a use of `+' + Possible fix: add an instance declaration for (Num [[Char]]) + In the expression: x + 1 + In the expression: + [x + 1 | x <- ["Hello", "World"], then group using take 5] + In an equation for `foo': + foo = [x + 1 | x <- ["Hello", "World"], then group using take 5] + +tcfail192.hs:10:26: + Couldn't match type `a' with `[a]' + `a' is a rigid type variable bound by + a type expected by the context: [a] -> [[a]] at tcfail192.hs:10:9 + Expected type: [a] -> [[a]] + Actual type: [a] -> [a] + In the return type of a call of `take' + In the expression: take 5 + In a stmt of a list comprehension: then group using take 5 diff --git a/testsuite/tests/typecheck/should_fail/tcfail193.stderr b/testsuite/tests/typecheck/should_fail/tcfail193.stderr index 988810e2f8..47375e8401 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail193.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail193.stderr @@ -1,9 +1,10 @@ -
-tcfail193.hs:10:31:
- Couldn't match type `a' with `[a]'
- `a' is a rigid type variable bound by
- a type expected by the context: [a] -> [a] at tcfail193.hs:10:26
- Expected type: [a] -> [a]
- Actual type: [a] -> [[a]]
- In the expression: inits
- In a stmt of a list comprehension: then inits
+ +tcfail193.hs:10:31: + Couldn't match type `a' with `[a]' + `a' is a rigid type variable bound by + a type expected by the context: [a] -> [a] at tcfail193.hs:10:26 + Expected type: [a] -> [a] + Actual type: [a] -> [[a]] + In the expression: inits + In a stmt of a list comprehension: then inits + In the expression: [x | x <- [3, 2, 1], then inits] diff --git a/testsuite/tests/typecheck/should_fail/tcfail194.stderr b/testsuite/tests/typecheck/should_fail/tcfail194.stderr index be6e37ec6b..c206bd51f3 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail194.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail194.stderr @@ -1,8 +1,27 @@ +tcfail194.hs:9:15: + No instance for (Enum t0) + arising from the arithmetic sequence `1 .. 10' + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: [1 .. 10] + In a stmt of a list comprehension: x <- [1 .. 10] + In a stmt of a list comprehension: then take 5 by x + +tcfail194.hs:9:16: + No instance for (Num t0) + arising from the literal `1' + The type variable `t0' is ambiguous + Possible fix: add a type signature that fixes these type variable(s) + In the expression: 1 + In the expression: [1 .. 10] + In a stmt of a list comprehension: x <- [1 .. 10] + tcfail194.hs:9:29: - Couldn't match expected type `a -> t0' with actual type `[a0]' + Couldn't match type `[a0]' with `a -> t0' Expected type: (a -> t0) -> [a] -> [a] Actual type: [a0] -> [a0] In the return type of a call of `take' Probable cause: `take' is applied to too many arguments In the expression: take 5 + In a stmt of a list comprehension: then take 5 by x diff --git a/testsuite/tests/typecheck/should_fail/tcfail198.stderr b/testsuite/tests/typecheck/should_fail/tcfail198.stderr index 27fbf92f5a..bba13900de 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail198.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail198.stderr @@ -1,10 +1,10 @@ tcfail198.hs:6:36: - Couldn't match type `a' with `a1' - `a' is a rigid type variable bound by - the inferred type of f3 :: [a] -> [a] at tcfail198.hs:6:1 + Couldn't match expected type `a1' with actual type `a' `a1' is a rigid type variable bound by an expression type signature: a1 at tcfail198.hs:6:36 + `a' is a rigid type variable bound by + the inferred type of f3 :: [a] -> [a] at tcfail198.hs:6:1 In the expression: x :: a In the second argument of `(++)', namely `[x :: a]' In the expression: xs ++ [x :: a] diff --git a/testsuite/tests/typecheck/should_fail/tcfail201.stderr b/testsuite/tests/typecheck/should_fail/tcfail201.stderr index 23dd02614b..f45b899b90 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail201.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail201.stderr @@ -1,15 +1,15 @@ -
-tcfail201.hs:18:28:
- Couldn't match type `a' with `HsDoc id0'
- `a' is a rigid type variable bound by
- the type signature for
- gfoldl' :: (forall a1 b. c (a1 -> b) -> a1 -> c b)
- -> (forall g. g -> c g) -> a -> c a
- at tcfail201.hs:16:1
- In the pattern: DocParagraph hsDoc
- In a case alternative:
- (DocParagraph hsDoc) -> z DocParagraph `k` hsDoc
- In the expression:
- case hsDoc of {
- DocEmpty -> z DocEmpty
- (DocParagraph hsDoc) -> z DocParagraph `k` hsDoc }
+ +tcfail201.hs:18:28: + Couldn't match expected type `a' with actual type `HsDoc id0' + `a' is a rigid type variable bound by + the type signature for + gfoldl' :: (forall a1 b. c (a1 -> b) -> a1 -> c b) + -> (forall g. g -> c g) -> a -> c a + at tcfail201.hs:16:1 + In the pattern: DocParagraph hsDoc + In a case alternative: + (DocParagraph hsDoc) -> z DocParagraph `k` hsDoc + In the expression: + case hsDoc of { + DocEmpty -> z DocEmpty + (DocParagraph hsDoc) -> z DocParagraph `k` hsDoc } diff --git a/testsuite/tests/typecheck/should_fail/tcfail206.hs b/testsuite/tests/typecheck/should_fail/tcfail206.hs index a256bc3e34..95b0eba359 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail206.hs +++ b/testsuite/tests/typecheck/should_fail/tcfail206.hs @@ -1,5 +1,5 @@ {-# LANGUAGE TupleSections, UnboxedTuples #-} -module Main where +module ShouldCompile where a :: Bool -> (Int, Bool) a = ( , True) @@ -18,5 +18,3 @@ e = (#1, #) f :: a -> (#a, Bool#) f = (#True || False, #) - -main = return ()
\ No newline at end of file diff --git a/testsuite/tests/typecheck/should_fail/tcfail206.stderr b/testsuite/tests/typecheck/should_fail/tcfail206.stderr index f469475b9f..76b5c7ebd2 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail206.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail206.stderr @@ -1,48 +1,47 @@ -
-tcfail206.hs:5:5:
- Couldn't match expected type `Int' with actual type `Bool'
- Expected type: Bool -> (Int, Bool)
- Actual type: Bool -> (Bool, t0)
- In the expression: (, True)
- In an equation for `a': a = (, True)
-
-tcfail206.hs:8:5:
- Couldn't match expected type `Bool -> (Int, Bool)'
- with actual type `(t0, Int)'
- Expected type: Int -> Bool -> (Int, Bool)
- Actual type: Int -> (t0, Int)
- In the expression: (1,)
- In an equation for `b': b = (1,)
-
-tcfail206.hs:11:5:
- Couldn't match type `a' with `Bool'
- `a' is a rigid type variable bound by
- the type signature for c :: a -> (a, Bool) at tcfail206.hs:11:1
- Expected type: a -> (a, Bool)
- Actual type: a -> (a, a)
- In the expression: (True || False,)
- In an equation for `c': c = (True || False,)
-
-tcfail206.hs:14:5:
- Couldn't match expected type `Int' with actual type `Bool'
- Expected type: Bool -> (# Int, Bool #)
- Actual type: Bool -> (# Bool, t0 #)
- In the expression: (# , True #)
- In an equation for `d': d = (# , True #)
-
-tcfail206.hs:17:5:
- Couldn't match expected type `Bool -> (# Int, Bool #)'
- with actual type `(# t0, Int #)'
- Expected type: Int -> Bool -> (# Int, Bool #)
- Actual type: Int -> (# t0, Int #)
- In the expression: (# 1, #)
- In an equation for `e': e = (# 1, #)
-
-tcfail206.hs:20:5:
- Couldn't match type `a' with `Bool'
- `a' is a rigid type variable bound by
- the type signature for f :: a -> (# a, Bool #) at tcfail206.hs:20:1
- Expected type: a -> (# a, Bool #)
- Actual type: a -> (# a, a #)
- In the expression: (# True || False, #)
- In an equation for `f': f = (# True || False, #)
+ +tcfail206.hs:5:5: + Couldn't match type `Bool' with `Int' + Expected type: Bool -> (Int, Bool) + Actual type: Bool -> (Bool, Bool) + In the expression: (, True) + In an equation for `a': a = (, True) + +tcfail206.hs:8:5: + Couldn't match type `(Integer, Int)' with `Bool -> (Int, Bool)' + Expected type: Int -> Bool -> (Int, Bool) + Actual type: Int -> (Integer, Int) + In the expression: (1,) + In an equation for `b': b = (1,) + +tcfail206.hs:11:5: + Couldn't match type `a' with `Bool' + `a' is a rigid type variable bound by + the type signature for c :: a -> (a, Bool) at tcfail206.hs:11:1 + Expected type: a -> (a, Bool) + Actual type: a -> (a, a) + In the expression: (True || False,) + In an equation for `c': c = (True || False,) + +tcfail206.hs:14:5: + Couldn't match type `Bool' with `Int' + Expected type: Bool -> (# Int, Bool #) + Actual type: Bool -> (# Bool, Bool #) + In the expression: (# , True #) + In an equation for `d': d = (# , True #) + +tcfail206.hs:17:5: + Couldn't match type `(# Integer, Int #)' + with `Bool -> (# Int, Bool #)' + Expected type: Int -> Bool -> (# Int, Bool #) + Actual type: Int -> (# Integer, Int #) + In the expression: (# 1, #) + In an equation for `e': e = (# 1, #) + +tcfail206.hs:20:5: + Couldn't match type `a' with `Bool' + `a' is a rigid type variable bound by + the type signature for f :: a -> (# a, Bool #) at tcfail206.hs:20:1 + Expected type: a -> (# a, Bool #) + Actual type: a -> (# a, a #) + In the expression: (# True || False, #) + In an equation for `f': f = (# True || False, #) diff --git a/testsuite/tests/typecheck/should_fail/tcfail207.stderr b/testsuite/tests/typecheck/should_fail/tcfail207.stderr index 307b4044d5..3e96a0994e 100644 --- a/testsuite/tests/typecheck/should_fail/tcfail207.stderr +++ b/testsuite/tests/typecheck/should_fail/tcfail207.stderr @@ -1,7 +1,7 @@ tcfail207.hs:5:7: Couldn't match expected type `[Int] -> [Int]' - with actual type `[a0]' + with actual type `[a1]' In the return type of a call of `take' Probable cause: `take' is applied to too many arguments In the expression: take x [] diff --git a/testsuite/tests/typecheck/should_run/Defer01.hs b/testsuite/tests/typecheck/should_run/Defer01.hs new file mode 100755 index 0000000000..368db9873f --- /dev/null +++ b/testsuite/tests/typecheck/should_run/Defer01.hs @@ -0,0 +1,53 @@ +-- Test -fdefer-type-errors +-- Should compile and run + +{-# LANGUAGE FlexibleContexts #-} +{-# LANGUAGE GADTs #-} +{-# OPTIONS_GHC -fdefer-type-errors #-} + +module Main where + +t5624 :: IO () +t5624 = putStr "Hello World" >> putStr ',' + +a :: Int +a = 'p' + +data B = B +b :: B -> Bool +b x = x == x + +data C a where + C1 :: C Int + C2 :: Bool -> C Bool + +c :: C Int -> Bool +c (C2 x) = True + +d :: a -> a +d = 1 + +e = 'p' +f = e 'q' + +h :: a -> (Char,Char) +h x = (x,'c') + +data T a where + K :: a -> T a + +i a = seq (not (K a)) () + +class MyClass a where myOp :: a -> String + +j = myOp 23 -- Two errors, should not combine them + +k :: (Int ~ Bool) => Int -> Bool +k x = x + +l :: IO () +l = putChar >> putChar 'p' + + +main :: IO () +main = print "No errors!" diff --git a/testsuite/tests/typecheck/should_run/Defer01.stdout b/testsuite/tests/typecheck/should_run/Defer01.stdout new file mode 100644 index 0000000000..19c37779d6 --- /dev/null +++ b/testsuite/tests/typecheck/should_run/Defer01.stdout @@ -0,0 +1 @@ +"No errors!" diff --git a/testsuite/tests/typecheck/should_run/all.T b/testsuite/tests/typecheck/should_run/all.T index aacdc7d082..d13b317222 100644..100755 --- a/testsuite/tests/typecheck/should_run/all.T +++ b/testsuite/tests/typecheck/should_run/all.T @@ -11,6 +11,7 @@ test('tcrun002', only_compiler_types(['ghc']), compile_and_run, ['']) test('tcrun003', normal, compile_and_run, ['']) test('tcrun004', normal, compile_and_run, ['']) test('tcrun005', normal, compile_and_run, ['']) +test('Defer01', normal, compile_and_run, ['']) # ----------------------------------------------------------------------------- # Skip everything else if fast is on @@ -84,4 +85,4 @@ test('T3500a', normal, compile_and_run, ['']) test('T3500b', normal, compile_and_run, ['']) test('T4809', reqlib('mtl'), compile_and_run, ['']) test('T2722', normal, compile_and_run, ['']) -test('mc17', normal, compile_and_run, ['']) +test('mc17', normal, compile_and_run, [''])
\ No newline at end of file diff --git a/testsuite/tests/typecheck/should_run/tcrun041.hs b/testsuite/tests/typecheck/should_run/tcrun041.hs index f78141adc7..dbdebf7687 100644 --- a/testsuite/tests/typecheck/should_run/tcrun041.hs +++ b/testsuite/tests/typecheck/should_run/tcrun041.hs @@ -23,7 +23,7 @@ h = (# ,1, #) unchanged :: a -> (# Int #) -unchanged _binding = (# #) 1 +unchanged _binding = (# 1 #) main = do |