projects
/
ghc-hetmet.git
/ blob
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
history
|
raw
|
HEAD
[project @ 1996-01-08 20:28:12 by partain]
[ghc-hetmet.git]
/
ghc
/
compiler
/
tests
/
typecheck
/
should_succeed
/
tc045.hs
1
module H where
2
3
class C a where
4
op1 :: a -> a
5
6
class (C a) => B a where
7
op2 :: a -> a -> a
8
9
instance (B a) => B [a] where
10
op2 xs ys = xs
11
12
instance C [a] where
13
op1 xs = xs
14
15
{- This was passed by the prototype, but failed hard in the new
16
typechecker with the message
17
18
Fail:No match in theta_class
19
-}