diff options
Diffstat (limited to '')
| -rw-r--r-- | src/ExtractToFStar.ml | 34 | ||||
| -rw-r--r-- | src/Translate.ml | 8 |
2 files changed, 12 insertions, 30 deletions
diff --git a/src/ExtractToFStar.ml b/src/ExtractToFStar.ml index 4baa1fd6..1c93c9da 100644 --- a/src/ExtractToFStar.ml +++ b/src/ExtractToFStar.ml @@ -1310,8 +1310,8 @@ let extract_template_decreases_clause (ctx : extraction_ctx) (fmt : F.formatter) it is useful for the decrease clause. *) let extract_fun_decl (ctx : extraction_ctx) (fmt : F.formatter) - (qualif : fun_decl_qualif) (has_decreases_clause : bool) - (has_state_param : bool) (fwd_def : fun_decl) (def : fun_decl) : unit = + (qualif : fun_decl_qualif) (has_decreases_clause : bool) (def : fun_decl) : + unit = (* Retrieve the function name *) let def_name = ctx_get_local_function def.def_id def.back_id ctx in (* (* Add the type parameters - note that we need those bindings only for the @@ -1397,31 +1397,19 @@ let extract_fun_decl (ctx : extraction_ctx) (fmt : F.formatter) * backward functions have no influence on termination: we thus * share the decrease clauses between the forward and the backward * functions). - * Something annoying is that there may be a state parameter, for - * the state-error monad, in which case we need to forget the input - * parameter before last: - * ``` - * val f_fwd (x : u32) (st : state) : - * Tot (result (state & u32)) (decreases (f_decreases x st)) - * - * We ignore this parameter - * VVV - * val f_back (x : u32) (ret : u32) (st : state) : - * Tot (result (state & u32)) (decreases (f_decreases x st)) - * ``` - * Rk.: if a function has a decreases clause, it is necessarily - * a transparent function *) let inputs_lvs = - let num_fwd_inputs = List.length (Option.get fwd_def.body).inputs_lvs in + let all_inputs = (Option.get def.body).inputs_lvs in + (* We have to count: + * - the forward inputs + * - the state + *) + let num_fwd_inputs = def.signature.info.num_fwd_inputs in let num_fwd_inputs = - if has_state_param then num_fwd_inputs - 1 else num_fwd_inputs + if def.signature.info.input_state then 1 + num_fwd_inputs + else num_fwd_inputs in - let all_inputs = (Option.get def.body).inputs_lvs in - let inputs = Collections.List.prefix num_fwd_inputs all_inputs in - if has_state_param then - inputs @ [ List.nth all_inputs (List.length all_inputs - 1) ] - else inputs + Collections.List.prefix num_fwd_inputs all_inputs in let _ = List.fold_left diff --git a/src/Translate.ml b/src/Translate.ml index a264a121..d5505894 100644 --- a/src/Translate.ml +++ b/src/Translate.ml @@ -481,19 +481,13 @@ let extract_definitions (fmt : Format.formatter) (config : gen_config) let has_decr_clause = has_decreases_clause def && config.extract_decreases_clauses in - (* Is there an input parameter "visible" for the state used in - * the state error monad (if we use a state error monad)? *) - let has_state_param = - config.use_state_monad - && config.mp_config.unfold_monadic_let_bindings - in (* Check if the definition needs to be filtered or not *) if ((not is_opaque) && config.extract_transparent) || (is_opaque && config.extract_opaque) then ExtractToFStar.extract_fun_decl ctx.extract_ctx fmt qualif - has_decr_clause has_state_param fwd_def def) + has_decr_clause def) fls); (* Insert unit tests if necessary *) if config.test_unit_functions then |