implementation module checkKindCorrectness import StdEnv import syntax, containers, checksupport, utilities // import RWSDebug checkKindCorrectness :: !NumberSet !Index IndexRange !{#CommonDefs} !{#DclModule} !u:{# FunDef} !*TypeVarHeap !*TypeDefInfos !*ErrorAdmin -> (!u:{# FunDef}, !*TypeVarHeap, !*TypeDefInfos, !*ErrorAdmin) checkKindCorrectness icl_used_module_numbers main_dcl_module_n icl_instances common_defs dcl_mods fun_defs th_vars td_infos error_admin #! n_fun_defs = size fun_defs # (th_vars, td_infos, error_admin) = iFoldSt (\mod_index state -> if (inNumberSet mod_index icl_used_module_numbers) (check_kind_correctness_of_classes common_defs common_defs.[mod_index] state) state) 0 (size dcl_mods) (th_vars, td_infos, error_admin) th_vars = th_vars (th_vars, td_infos, error_admin) = iFoldSt (\mod_index state -> if (inNumberSet mod_index icl_used_module_numbers) (check_kind_correctness_of_instances_and_class_and_member_contexts common_defs common_defs.[mod_index] state) state) 0 (size dcl_mods) (th_vars, td_infos, error_admin) // check_kind_correctness_of_icl_function: don't check the types that were generated for instances th_vars = th_vars state = iFoldSt check_kind_correctness_of_icl_function 0 icl_instances.ir_from (fun_defs, th_vars, td_infos, error_admin) (fun_defs, th_vars, td_infos, error_admin) = iFoldSt check_kind_correctness_of_icl_function icl_instances.ir_to n_fun_defs state th_vars = th_vars (th_vars, td_infos, error_admin) = iFoldSt (\mod_index state -> if (inNumberSet mod_index icl_used_module_numbers && mod_index<>main_dcl_module_n) (check_kind_correctness_of_dcl_functions common_defs dcl_mods.[mod_index] state) state) 0 (size dcl_mods) (th_vars, td_infos, error_admin) th_vars = th_vars = (fun_defs, th_vars, td_infos, error_admin) where check_kind_correctness_of_classes common_defs {com_class_defs, com_member_defs} state = foldlArraySt (check_kind_correctness_of_class common_defs com_member_defs) com_class_defs state check_kind_correctness_of_class common_defs com_member_defs {class_name, class_args, class_members} (th_vars, td_infos, error_admin) # th_vars = foldSt init_type_var class_args th_vars = foldlArraySt (\{ds_index} state -> check_kind_correctness_of_member_without_context common_defs class_args com_member_defs.[ds_index] state) class_members (th_vars, td_infos, error_admin) check_kind_correctness_of_member_without_context common_defs class_args {me_symb, me_pos, me_class_vars, me_type=me_type=:{st_vars, st_args, st_result}} (th_vars, td_infos, error_admin) # error_admin = setErrorAdmin (newPosition me_symb me_pos) error_admin th_vars = foldSt init_type_var st_vars th_vars th_vars = fold2St copy_TVI class_args me_class_vars th_vars (th_vars, td_infos, error_admin) = unsafeFold2St (check_kind_correctness_of_atype KindConst) [0..] [st_result:st_args] (th_vars, td_infos, error_admin) th_vars = fold2St copy_TVI me_class_vars class_args th_vars = (th_vars, td_infos, error_admin) where copy_TVI src dst th_vars # (tvi, th_vars) = readPtr src.tv_info_ptr th_vars = writePtr dst.tv_info_ptr tvi th_vars check_kind_correctness_of_instances_and_class_and_member_contexts common_defs {com_instance_defs, com_class_defs, com_member_defs} state # state = foldlArraySt (check_kind_correctness_of_instance common_defs) com_instance_defs state state = foldlArraySt (check_kind_correctness_of_class_context_and_member_contexts common_defs com_member_defs) com_class_defs state = state check_kind_correctness_of_instance common_defs {ins_class, ins_ident, ins_pos, ins_type} (th_vars, td_infos, error_admin) # {class_args} = common_defs.[ins_class.glob_module].com_class_defs.[ins_class.glob_object.ds_index] (expected_kinds, th_vars) = mapSt get_tvi class_args th_vars error_admin = setErrorAdmin (newPosition ins_ident ins_pos) error_admin th_vars = foldSt init_type_var ins_type.it_vars th_vars state = unsafeFold3St possibly_check_kind_correctness_of_type expected_kinds [1..] ins_type.it_types (th_vars, td_infos, error_admin) state = foldSt (check_kind_correctness_of_context common_defs) ins_type.it_context state = state possibly_check_kind_correctness_of_type TVI_Empty _ _ state // This can happen for stooopid classes like StdClass::Ord, where the member type is ignored at all = state possibly_check_kind_correctness_of_type (TVI_Kind expected_kind) arg_nr type state = check_kind_correctness_of_type expected_kind arg_nr type state check_kind_correctness_of_class_context_and_member_contexts common_defs com_member_defs {class_name, class_pos, class_context, class_members} (th_vars, td_infos, error_admin) # error_admin = setErrorAdmin (newPosition class_name class_pos) error_admin state = foldSt (check_kind_correctness_of_context common_defs) class_context (th_vars, td_infos, error_admin) state = foldlArraySt (check_kind_correctness_of_member_context common_defs com_member_defs) class_members state = state check_kind_correctness_of_member_context common_defs com_member_defs {ds_index} (th_vars, td_infos, error_admin) # {me_symb, me_pos, me_type} = com_member_defs.[ds_index] error_admin = setErrorAdmin (newPosition me_symb me_pos) error_admin = foldSt (check_kind_correctness_of_context common_defs) me_type.st_context (th_vars, td_infos, error_admin) get_tvi {tv_info_ptr} th_vars = readPtr tv_info_ptr th_vars check_kind_correctness_of_icl_function fun_n (fun_defs, th_vars, td_infos, error_admin) # (fun_def, fun_defs) = fun_defs![fun_n] = case fun_def.fun_type of No -> (fun_defs, th_vars, td_infos, error_admin) Yes st # (th_vars, td_infos, error_admin) = check_kind_correctness_of_symbol_type common_defs fun_def.fun_symb fun_def.fun_pos st (th_vars, td_infos, error_admin) -> (fun_defs, th_vars, td_infos, error_admin) check_kind_correctness_of_dcl_functions common_defs {dcl_functions, dcl_instances, dcl_macros} state = iFoldSt (\i state -> if (in_index_range i dcl_instances || in_index_range i dcl_macros) // yawn state (let ({ft_symb, ft_pos, ft_type}) = dcl_functions.[i] in check_kind_correctness_of_symbol_type common_defs ft_symb ft_pos ft_type state)) 0 (size dcl_functions) state check_kind_correctness_of_symbol_type common_defs fun_symb fun_pos st=:{st_vars, st_args, st_result, st_context} (th_vars, td_infos, error_admin) # error_admin = setErrorAdmin (newPosition fun_symb fun_pos) error_admin th_vars = foldSt init_type_var st_vars th_vars (th_vars, td_infos, error_admin) = unsafeFold2St (check_kind_correctness_of_atype KindConst) [0..] [st_result:st_args] (th_vars, td_infos, error_admin) (th_vars, td_infos, error_admin) = foldSt (check_kind_correctness_of_context common_defs) st_context (th_vars, td_infos, error_admin) = (th_vars, td_infos, error_admin) check_kind_correctness_of_atype expected_kind arg_nr {at_type} state = check_kind_correctness_of_type expected_kind arg_nr at_type state check_kind_correctness_of_type expected_kind arg_nr (TA {type_name,type_index} args) (th_vars, td_infos, error_admin) # ({tdi_kinds}, td_infos) = td_infos![type_index.glob_module,type_index.glob_object] (th_vars, td_infos, error_admin) = unsafeFold2St (flip check_kind_correctness_of_atype arg_nr) tdi_kinds args (th_vars, td_infos, error_admin) n_args = length args kind_of_application = if (n_args==length tdi_kinds) KindConst (KindArrow (drop n_args tdi_kinds)) error_admin = check_equality_of_kinds arg_nr expected_kind kind_of_application error_admin = (th_vars, td_infos, error_admin) check_kind_correctness_of_type expected_kind _ (TV tv) (th_vars, td_infos, error_admin) # (th_vars, error_admin) = unify_var_kinds expected_kind tv th_vars error_admin = (th_vars, td_infos, error_admin) check_kind_correctness_of_type expected_kind _ (GTV tv) (th_vars, td_infos, error_admin) # (th_vars, error_admin) = unify_var_kinds expected_kind tv th_vars error_admin = (th_vars, td_infos, error_admin) check_kind_correctness_of_type expected_kind arg_nr (l --> r) state # state = check_kind_correctness_of_atype KindConst arg_nr l state (th_vars, td_infos, error_admin) = check_kind_correctness_of_atype KindConst arg_nr r state error_admin = check_equality_of_kinds arg_nr expected_kind KindConst error_admin = (th_vars, td_infos, error_admin) check_kind_correctness_of_type expected_kind arg_nr ((CV tv) :@: args) state # (th_vars, td_infos, error_admin) = foldSt (check_kind_correctness_of_atype KindConst arg_nr) args state expected_kind_of_cons_var = KindArrow (repeatn (length args) KindConst) (th_vars, error_admin) = unify_var_kinds expected_kind_of_cons_var tv th_vars error_admin error_admin = check_equality_of_kinds arg_nr expected_kind KindConst error_admin = (th_vars, td_infos, error_admin) check_kind_correctness_of_type expected_kind arg_nr (TB _) (th_vars, td_infos, error_admin) # error_admin = check_equality_of_kinds arg_nr expected_kind KindConst error_admin = (th_vars, td_infos, error_admin) check_kind_correctness_of_context common_defs {tc_class, tc_types} (th_vars, td_infos, error_admin) # {class_args} = common_defs.[tc_class.glob_module].com_class_defs.[tc_class.glob_object.ds_index] (expected_kinds, th_vars) = mapSt get_tvi class_args th_vars state = unsafeFold3St possibly_check_kind_correctness_of_type expected_kinds (descending (-1)) tc_types (th_vars, td_infos, error_admin) = state where descending i = [i:descending (i-1)] init_type_var {tv_info_ptr} th_vars = writePtr tv_info_ptr TVI_Empty th_vars unify_var_kinds expected_kind {tv_name, tv_info_ptr} th_vars error_admin # (tvi, th_vars) = readPtr tv_info_ptr th_vars = case tvi of TVI_Empty -> (writePtr tv_info_ptr (TVI_Kind expected_kind) th_vars, error_admin) TVI_Kind kind | expected_kind==kind -> (th_vars, error_admin) -> (th_vars, checkError "cannot consistently assign a kind to type variable" tv_name.id_name error_admin) check_equality_of_kinds arg_nr expected_kind kind error_admin | expected_kind==kind = error_admin = checkError "inconsistent kind in " (arg_nr_to_string arg_nr) error_admin arg_nr_to_string 0 = "result type" arg_nr_to_string i | i >0 = "type of argument nr "+++toString i = "type context nr "+++toString (~i) in_index_range test ir :== test>=ir.ir_from && test < ir.ir_to