#5988: Safe Haskell doesn't report all reasons why safe inference fails
-----------------------------------------------+----------------------------
Reporter: dterei | Owner: dterei
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.4.1 | Keywords:
Os: Unknown/Multiple | Architecture:
Unknown/Multiple
Failure: Incorrect warning at compile-time | Testcase:
Blockedby: | Blocking:
Related: |
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When using `-fwarn-unsafe` to report why safe inference has failed Safe
Haskell doesn't report bad language extensions.
e.g this program is unsafe due to the use of Template Haskell:
{{{
{-# LANGUAGE TemplateHaskell #-}
{-# OPTIONS_GHC -fwarn-unsafe #-}
module A where
a :: Int
a = 1
}}}
but the output is:
{{{
UnsafeInfered.hs:2:16: Warning:
`UnsafeInfered' has been infered as unsafe!
Reason:
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5988>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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