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 wrote:

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****

Ah, yes. But I am interested in the SrcSpan of the *usage site* (as well as the binding site). Edsko On Mon, Feb 25, 2013 at 4:41 PM, Simon Peyton-Jones wrote:

The SrcSpan of the binding site is stored inside the Id. getSrcSpan should do it.****

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S****

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*From:* Edsko de Vries [mailto:edskodevries@gmail.com] *Sent:* 25 February 2013 16:27

*To:* Simon Peyton-Jones *Cc:* ghc-devs@haskell.org *Subject:* Re: Top-level type signatures in TcGblEnv?****

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I'm sorry, I don't see any location information ("Located .." types) in tcg_type_env?****

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Edsko****

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On Mon, Feb 25, 2013 at 3:22 PM, Simon Peyton-Jones wrote:****

Can’t you just use the range of the tcg_type_env?

Simon****

****

*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?****

****

Dear Simon, other ghc devs,****

****

I hooked into genericHscRecompile to traverse the typechecked source and construct an environment of type****

****

[(SrcSpan, Id)]****

****

recording all identifiers in the source with their type, definition site, etc. To be precise, I am traversing the ****

****

tcg_binds :: LHsBinds Id, -- Value bindings in this module****

****

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. ****

****

Now, let-bindings get a HsValBindsLR instead of an LHsBinds, and that *does* contain signatures. My question is two-fold:****

****

1. First, am I missing something? Are there LSigs somewhere inside the TcGblEnv where I simply haven't seen them?****

****

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?****

****

Thanks,****

****

Edsko****

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