#2597: panic! (the 'impossible' happened) (using TH)
------------------------------+---------------------------------------------
Reporter: jcab | Owner: igloo
Type: merge | Status: new
Priority: normal | Milestone:
Component: Template Haskell | Version: 6.8.3
Severity: major | Resolution:
Keywords: | Difficulty: Unknown
Testcase: | Architecture: x86
Os: Windows |
------------------------------+---------------------------------------------
Changes (by simonpj):
* owner: simonpj => igloo
* type: bug => merge
Comment:
Here are the patches.
{{{
Sat Sep 20 22:20:10 GMT Daylight Time 2008 [EMAIL PROTECTED]
* Fix Trac #2597 (first bug): correct type checking for empty list
The GHC front end never generates (ExplicitList []), but TH can.
This patch makes the typechecker robust to such programs.
Sat Sep 20 22:11:01 GMT Daylight Time 2008 [EMAIL PROTECTED]
* Fix Trac #2597 (second bug): complain about an empty DoE block
When converting an empty do-block from TH syntax to HsSyn,
complain rather than crashing.
}}}
Ian; worth merging these across I think. Both are small
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2597#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
