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Diffstat (limited to '')
| -rw-r--r-- | src/Translate.ml | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/Translate.ml b/src/Translate.ml index ba3effc5..8d9c0270 100644 --- a/src/Translate.ml +++ b/src/Translate.ml @@ -306,6 +306,16 @@ let translate_module (filename : string) (dest_dir : string) (config : config) { PureToExtract.trans_ctx; names_map; fmt = fstar_fmt; indent_incr = 2 } in + (* We need to compute which functions are recursive, in order to know + * whether we should generate a decrease clause or not. *) + let rec_functions = + Pure.FunDefId.Set.of_list + (List.concat + (List.map + (fun decl -> match decl with M.Fun (Rec ids) -> ids | _ -> []) + m.declarations)) + in + (* Register unique names for all the top-level types and functions. * Note that the order in which we generate the names doesn't matter: * we just need to generate a mapping from identifier to name, and make @@ -320,7 +330,12 @@ let translate_module (filename : string) (dest_dir : string) (config : config) let extract_ctx = List.fold_left (fun extract_ctx (keep_fwd, def) -> - ExtractToFStar.extract_fun_def_register_names extract_ctx keep_fwd def) + (* Note that we generate a decrease clause for all the recursive functions *) + let gen_decr_clause = + Pure.FunDefId.Set.mem (fst def).Pure.def_id rec_functions + in + ExtractToFStar.extract_fun_def_register_names extract_ctx keep_fwd + gen_decr_clause def) extract_ctx trans_funs in |