I'm sorry, I don't see any location information ("Located .." types) in
tcg_type_env?
Edsko
On Mon, Feb 25, 2013 at 3:22 PM, Simon Peyton-Jones
Can’t you just use the range of the tcg_type_env?
Simon****
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*From:* Edsko de Vries [mailto:edskodevries@gmail.com] *Sent:* 18 February 2013 14:03 *To:* Simon Peyton-Jones *Cc:* ghc-devs@haskell.org *Subject:* Top-level type signatures in TcGblEnv?****
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Dear Simon, other ghc devs,****
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I hooked into genericHscRecompile to traverse the typechecked source and construct an environment of type****
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[(SrcSpan, Id)]****
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recording all identifiers in the source with their type, definition site, etc. To be precise, I am traversing the ****
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tcg_binds :: LHsBinds Id, -- Value bindings in this module****
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field of the TcGblEnv structure returned by the type checker. The problem is that I have so far been unable to find top-level user-supplied type annotations inside LHsBinds. The closest thing I've found is the PostTcType of a MatchGroup, but that is not Located; what I'm really looking for is an LSig. ****
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Now, let-bindings get a HsValBindsLR instead of an LHsBinds, and that *does* contain signatures. My question is two-fold:****
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1. First, am I missing something? Are there LSigs somewhere inside the TcGblEnv where I simply haven't seen them?****
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2. If not, is there a good reason why tcg_binds is an LHsBinds rather than an HsValBindsLR? And if there isn't, would you accept a patch making the change?****
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Thanks,****
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Edsko****