open LlbcAst include Charon.LlbcAstUtils let lookup_fun_sig (fun_id : fun_id) (fun_decls : fun_decl FunDeclId.Map.t) : fun_sig = match fun_id with | Regular id -> (FunDeclId.Map.find id fun_decls).signature | Assumed aid -> Assumed.get_assumed_sig aid let lookup_fun_name (fun_id : fun_id) (fun_decls : fun_decl FunDeclId.Map.t) : Names.fun_name = match fun_id with | Regular id -> (FunDeclId.Map.find id fun_decls).name | Assumed aid -> Assumed.get_assumed_name aid (** Return the opaque declarations found in the crate. [filter_assumed]: if [true], do not consider as opaque the external definitions that we will map to definitions from the standard library. Remark: the list of functions also contains the list of opaque global bodies. *) let crate_get_opaque_decls (k : crate) (filter_assumed : bool) : T.type_decl list * fun_decl list = let open ExtractAssumed in let is_opaque_fun (d : fun_decl) : bool = let sname = name_to_simple_name d.name in d.body = None (* Something to pay attention to: we must ignore trait method *declarations* (which don't have a body but must not be considered as opaque) *) && (match d.kind with TraitMethodDecl _ -> false | _ -> true) && ((not filter_assumed) || not (SimpleNameMap.mem sname assumed_globals_map)) in let is_opaque_type (d : T.type_decl) : bool = d.kind = T.Opaque in (* Note that by checking the function bodies we also the globals *) ( List.filter is_opaque_type (T.TypeDeclId.Map.values k.types), List.filter is_opaque_fun (FunDeclId.Map.values k.functions) ) (** Return true if the crate contains opaque declarations, ignoring the assumed definitions. *) let crate_has_opaque_decls (k : crate) (filter_assumed : bool) : bool = crate_get_opaque_decls k filter_assumed <> ([], [])