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authorSimon Peyton Jones <simonpj@microsoft.com>2012-09-21 12:19:56 +0100
committerSimon Peyton Jones <simonpj@microsoft.com>2012-09-21 12:19:56 +0100
commitf1557f3b7cfb0b036d0ab350ffaa910f95ff58cc (patch)
treed92417d310e276977214ab989615b17c71ddb5d4 /testsuite/tests/rebindable
parent7095121c528fa81a27405009801855ec62fd8a7c (diff)
downloadhaskell-f1557f3b7cfb0b036d0ab350ffaa910f95ff58cc.tar.gz
A ton of error message wibbles
Notably * Showing relevant bindings * Not suggesting add instance (Num T); see Trac #7222
Diffstat (limited to 'testsuite/tests/rebindable')
-rw-r--r--testsuite/tests/rebindable/rebindable6.stderr20
1 files changed, 14 insertions, 6 deletions
diff --git a/testsuite/tests/rebindable/rebindable6.stderr b/testsuite/tests/rebindable/rebindable6.stderr
index f380db4446..5130968c02 100644
--- a/testsuite/tests/rebindable/rebindable6.stderr
+++ b/testsuite/tests/rebindable/rebindable6.stderr
@@ -4,11 +4,14 @@ rebindable6.hs:106:17:
arising from a do statement
The type variable `t0' is ambiguous
Possible fix: add a type signature that fixes these type variable(s)
+ Relevant bindings include
+ test_do :: IO a -> IO (Maybe b) -> IO b
+ (bound at rebindable6.hs:104:9)
+ f :: IO a (bound at rebindable6.hs:104:17)
+ g :: IO (Maybe b) (bound at rebindable6.hs:104:19)
Note: there is a potential instance available:
instance HasSeq (IO a -> IO b -> IO b)
-- Defined at rebindable6.hs:52:18
- Possible fix:
- add an instance declaration for (HasSeq (IO a -> t0 -> IO b))
In a stmt of a 'do' block: f
In the expression:
do { f;
@@ -25,12 +28,13 @@ rebindable6.hs:107:17:
arising from a do statement
The type variables `t0', `t1' are ambiguous
Possible fix: add a type signature that fixes these type variable(s)
+ Relevant bindings include
+ test_do :: IO a -> IO (Maybe b) -> IO b
+ (bound at rebindable6.hs:104:9)
+ g :: IO (Maybe b) (bound at rebindable6.hs:104:19)
Note: there is a potential instance available:
instance HasBind (IO a -> (a -> IO b) -> IO b)
-- Defined at rebindable6.hs:47:18
- Possible fix:
- add an instance declaration for
- (HasBind (IO (Maybe b) -> (Maybe b -> t1) -> t0))
In a stmt of a 'do' block: Just (b :: b) <- g
In the expression:
do { f;
@@ -47,9 +51,13 @@ rebindable6.hs:108:17:
arising from a use of `return'
The type variable `t1' is ambiguous
Possible fix: add a type signature that fixes these type variable(s)
+ Relevant bindings include
+ test_do :: IO a -> IO (Maybe b) -> IO b
+ (bound at rebindable6.hs:104:9)
+ g :: IO (Maybe b) (bound at rebindable6.hs:104:19)
+ b :: b (bound at rebindable6.hs:107:23)
Note: there is a potential instance available:
instance HasReturn (a -> IO a) -- Defined at rebindable6.hs:42:18
- Possible fix: add an instance declaration for (HasReturn (b -> t1))
In a stmt of a 'do' block: return b
In the expression:
do { f;