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camlp4 3.10 questions
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Date: | 2007-03-30 (11:13) |
From: | Hendrik Tews <H.Tews@c...> |
Subject: | Re: [Caml-list] camlp4 3.10 questions |
"Nicolas Pouillard" <nicolas.pouillard@gmail.com> writes: On 3/29/07, Hendrik Tews <H.Tews@cs.ru.nl> wrote: > "Nicolas Pouillard" <nicolas.pouillard@gmail.com> writes: > > > 2. There are various maps and folds on asts in Sig.Camlp4Ast. How > > can I use them? > > 2/ There is a lot of shortcuts to made the use of them easier when one > just want to hook up only one thing (expressions for instance). > > The same example. > > open Camlp4.PreCast > let f = Ast.map_expr begin function > | <:expr< $x$ + 0 >> | <:expr< 0 + $x$ >> -> x > | e -> e > end in > AstFilters.register_str_item f#str_item > > That should be AstFilters.register_str_item f ? Nop, giving the up to date signature of Ast.map_exp: value map_expr : (expr -> expr) -> map; Where does this come from? I only found value map_expr : (expr -> expr) -> expr -> expr; in Sig.ml line 515. > > 8. How can I process multiple files with the same camlp4 process? You're right only one file (implem or interf). So you can't by command line. Well, I guessed that. But how about using the API? Hendrik