Source Location of DataCon objects in GHC 7.4.1 API

[Simon Peyton-Jones]

Ah I see.  I'm fixing this.

Simon

| -----Original Message-----
| From: glasgow-haskell-users-bounces at haskell.org [mailto:glasgow-haskell-
| users-bounces at haskell.org] On Behalf Of JP Moresmau
| Sent: 01 June 2012 10:25
| To: glasgow-haskell-users at haskell.org
| Subject: Source Location of DataCon objects in GHC 7.4.1 API
| 
| Hello
| 
| I have a failing test in BuildWrapper when moving from GHC 7.0.4 to
| 7.4.1. As far I can tell, in the TypecheckedSource I get DataCon objects
| that have no location info, and hence I can't retrieve them by
| location... Which is useful in a IDE (tell me what's under my mouse
| cursor, tell me where else it's used).
| 
| Given the simple data declaration:
| data DataT=MkData {name :: String}
| 
| In 7.0.4 I obtain a hierarchy that ends in FunBind (on a Var called
| "name")/MatchGroup/Match/ConPatOut and the contained DataCon named
| "MkData" has a SrcSpan associated with it, and so do the Var, MatchGroup
| and Match.
| In 7.4.1 I have the same hierarchy but the DataCon tells me "no location
| info". The Var "name" has a location, but the MatchGroup and Match don't
| either.
| 
| Is it a normal change? Do I need to change something in the way I load
| the module? Is it a regression?
| 
| Thanks!
| 
| --
| JP Moresmau
| http://jpmoresmau.blogspot.com/
| 
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