diff options
Diffstat (limited to 'frontend')
| -rw-r--r-- | frontend/analtypes.icl | 7 | ||||
| -rw-r--r-- | frontend/check.icl | 22 | ||||
| -rw-r--r-- | frontend/overloading.icl | 10 | ||||
| -rw-r--r-- | frontend/trans.icl | 18 | ||||
| -rw-r--r-- | frontend/transform.icl | 8 | ||||
| -rw-r--r-- | frontend/type.icl | 4 | ||||
| -rw-r--r-- | frontend/typesupport.dcl | 4 | ||||
| -rw-r--r-- | frontend/typesupport.icl | 140 |
8 files changed, 103 insertions, 110 deletions
diff --git a/frontend/analtypes.icl b/frontend/analtypes.icl index 224425a..f6cae62 100644 --- a/frontend/analtypes.icl +++ b/frontend/analtypes.icl @@ -117,11 +117,8 @@ where # (used_td=:{td_rhs}, type_defs) = type_defs![glob_module, glob_object] = case td_rhs of SynType {at_type} - # (ok, subst_rhs, type_heaps) = substituteType used_td.td_attribute attribute used_td.td_args types at_type type_heaps - | ok - -> (Yes {type & at_type = subst_rhs }, type_defs, type_heaps, error) - # error = popErrorAdmin (typeSynonymError used_td.td_ident "kind conflict in argument of type synonym" (pushErrorAdmin pos error)) - -> (No, type_defs, type_heaps, error) + # ( subst_rhs, type_heaps) = substituteType used_td.td_attribute attribute used_td.td_args types at_type type_heaps + -> (Yes {type & at_type = subst_rhs }, type_defs, type_heaps, error) _ -> (No, type_defs, type_heaps, error) diff --git a/frontend/check.icl b/frontend/check.icl index e48a2e8..ff9db8a 100644 --- a/frontend/check.icl +++ b/frontend/check.icl @@ -614,22 +614,16 @@ instantiateTypes old_type_vars old_attr_vars types type_contexts attr_env {ss_en (new_attr_vars, th_attrs) = foldSt build_attr_var_subst ss_attrs ([], th_attrs) type_heaps = foldSt build_type_subst ss_environ { type_heaps & th_vars = th_vars, th_attrs = th_attrs } - (ok1, new_ss_context, type_heaps) = substitute ss_context type_heaps + (new_ss_context, type_heaps) = substitute ss_context type_heaps (inst_vars, th_vars) = foldSt determine_free_var old_type_vars (new_type_vars, type_heaps.th_vars) (inst_attr_vars, th_attrs) = foldSt build_attr_var_subst old_attr_vars (new_attr_vars, type_heaps.th_attrs) (inst_types, (ok2, type_heaps)) = mapSt substitue_arg_type types (True, { type_heaps & th_vars = th_vars, th_attrs = th_attrs }) // (ok2, inst_types, type_heaps) = substitute types { type_heaps & th_vars = th_vars, th_attrs = th_attrs } - (ok3, inst_contexts, type_heaps) = substitute type_contexts type_heaps - (ok4, inst_attr_env, type_heaps) = substitute attr_env type_heaps + (inst_contexts, type_heaps) = substitute type_contexts type_heaps + (inst_attr_env, type_heaps) = substitute attr_env type_heaps (special_subst_list, th_vars) = mapSt adjust_special_subst special_subst_list type_heaps.th_vars - error = case ok1 && ok2 && ok3 && ok4 of - True - -> error - False - -> checkError "instance type incompatible with class type" "" error - = (inst_vars, inst_attr_vars, inst_types, new_ss_context ++ inst_contexts, inst_attr_env, special_subst_list, { type_heaps & th_vars = th_vars }, error) where clear_vars type_vars type_var_heap = foldSt (\tv -> writePtr tv.tv_info_ptr TVI_Empty) type_vars type_var_heap @@ -643,7 +637,7 @@ where -> (free_vars, type_var_heap) build_type_subst {bind_src,bind_dst} type_heaps - # (_, bind_src, type_heaps) = substitute bind_src type_heaps + # (bind_src, type_heaps) = substitute bind_src type_heaps // RWS ... /* FIXME: this is a patch for the following incorrect function type (in a dcl module) @@ -664,11 +658,11 @@ where substitue_arg_type at=:{at_type = TFA type_vars type} (was_ok, type_heaps) # (fresh_type_vars, type_heaps) = foldSt build_avar_subst type_vars ([], type_heaps) - (ok, new_at, type_heaps) = substitute {at & at_type = type} type_heaps - = ({ new_at & at_type = TFA fresh_type_vars new_at.at_type}, (was_ok && ok, type_heaps)) + (new_at, type_heaps) = substitute {at & at_type = type} type_heaps + = ({ new_at & at_type = TFA fresh_type_vars new_at.at_type}, (was_ok, type_heaps)) substitue_arg_type type (was_ok, type_heaps) - # (ok, type, type_heaps) = substitute type type_heaps - = (type, (was_ok && ok, type_heaps)) + # (type, type_heaps) = substitute type type_heaps + = (type, (was_ok, type_heaps)) build_var_subst var (free_vars, type_var_heap) # (new_info_ptr, type_var_heap) = newPtr TVI_Empty type_var_heap diff --git a/frontend/overloading.icl b/frontend/overloading.icl index 7f8655d..f97f44c 100644 --- a/frontend/overloading.icl +++ b/frontend/overloading.icl @@ -388,7 +388,7 @@ where where fresh_context :: !TypeContext !*(.a,*TypeHeaps) -> (TypeContext,(.a,*TypeHeaps)) fresh_context tc=:{tc_types} (var_heap, type_heaps) - # (_, tc_types, type_heaps) = substitute tc_types type_heaps + # (tc_types, type_heaps) = substitute tc_types type_heaps // (tc_var, var_heap) = newPtr VI_Empty var_heap // = ({ tc & tc_types = tc_types, tc_var = tc_var }, (var_heap, type_heaps)) = ({ tc & tc_types = tc_types }, (var_heap, type_heaps)) @@ -496,7 +496,7 @@ where is_predefined_symbol glob_module glob_object PD_UnboxedArrayType predef_symbols -> (unboxable, No, (predef_symbols, type_heaps)) SynType {at_type} - # (_, expanded_type, type_heaps) = substituteType td_attribute TA_Multi td_args type_args at_type type_heaps + # (expanded_type, type_heaps) = substituteType td_attribute TA_Multi td_args type_args at_type type_heaps -> try_to_unbox expanded_type defs (predef_symbols, type_heaps) _ -> (False, No, (predef_symbols, type_heaps)) @@ -593,7 +593,7 @@ tryToExpandTypeSyn defs type cons_id=:{type_ident,type_index={glob_object,glob_m # {td_ident,td_rhs,td_args,td_attribute} = defs.[glob_module].com_type_defs.[glob_object] = case td_rhs of SynType {at_type} - # (_, expanded_type, type_heaps) = substituteType td_attribute TA_Multi td_args type_args at_type type_heaps + # (expanded_type, type_heaps) = substituteType td_attribute TA_Multi td_args type_args at_type type_heaps -> (True, expanded_type, type_heaps) _ -> (False, type, type_heaps) @@ -835,7 +835,7 @@ where = type_var_heap <:= (tv_info_ptr, TVI_Type type) subst_context_and_generate_super_classes class_context (super_classes, type_heaps) - # (_, super_class, type_heaps) = substitute class_context type_heaps + # (super_class, type_heaps) = substitute class_context type_heaps | containsContext super_class super_classes = (super_classes, type_heaps) = generate_super_classes super_class ([super_class : super_classes], type_heaps) @@ -1057,7 +1057,7 @@ where # {tc_class=TCClass {glob_object={ds_index},glob_module}} = tc2 {class_args,class_members,class_context,class_dictionary} = defs.[glob_module].com_class_defs.[ds_index] th_vars = foldr2 (\{tv_info_ptr} type -> writePtr tv_info_ptr (TVI_Type type)) th_vars class_args tc2.tc_types - (_, super_instances, type_heaps) = substitute class_context { type_heaps & th_vars = th_vars } + (super_instances, type_heaps) = substitute class_context { type_heaps & th_vars = th_vars } = find_super_instance tc1 super_instances (size class_members) address glob_module class_dictionary.ds_index defs type_heaps where find_super_instance :: !TypeContext ![TypeContext] !Index ![(Int, Global DefinedSymbol)] !Index !Index !{#CommonDefs} !*TypeHeaps diff --git a/frontend/trans.icl b/frontend/trans.icl index 9466630..6e52c46 100644 --- a/frontend/trans.icl +++ b/frontend/trans.icl @@ -978,8 +978,8 @@ where (type_variables, th_vars) = getTypeVars [ct_result_type:arg_types] th_vars (fresh_type_vars, th_vars) = mapSt bind_to_fresh_type_variable type_variables th_vars ti_type_heaps = { ti_type_heaps & th_vars = th_vars } - (_, fresh_arg_types, ti_type_heaps) = substitute arg_types ti_type_heaps - (_, fresh_result_type, ti_type_heaps) = substitute ct_result_type ti_type_heaps + (fresh_arg_types, ti_type_heaps) = substitute arg_types ti_type_heaps + (fresh_result_type, ti_type_heaps) = substitute ct_result_type ti_type_heaps fun_type = { st_vars = fresh_type_vars , st_args = fresh_arg_types @@ -1349,7 +1349,7 @@ generateFunction app_symb fd=:{fun_body = TransformedBody {tb_args,tb_rhs},fun_i ti_type_heaps = { ti_type_heaps & th_attrs = th_attrs, th_vars = th_vars } // | False-!->("before substitute", st_args, "->", st_result) = undef - # (_, (st_args,st_result), ti_type_heaps) + # ((st_args,st_result), ti_type_heaps) = substitute (st_args,st_result) ti_type_heaps // | False-!->("after substitute", st_args, "->", st_result) = undef // determine args... @@ -1686,9 +1686,9 @@ where = mapSt bind_to_fresh_type_variable st_vars th_vars (fresh_st_attr_vars, th_attrs) = mapSt bind_to_fresh_attr_variable st_attr_vars th_attrs - (_, [fresh_st_result:fresh_st_args], ti_type_heaps) + ([fresh_st_result:fresh_st_args], ti_type_heaps) = substitute [st_result:st_args] { ti_type_heaps & th_vars = th_vars, th_attrs = th_attrs } - (_, fresh_st_attr_env, ti_type_heaps) + (fresh_st_attr_env, ti_type_heaps) = substitute st_attr_env ti_type_heaps = (Yes { symbol_type & st_vars = fresh_st_vars, st_attr_vars = fresh_st_attr_vars, st_args = fresh_st_args, st_result = fresh_st_result, st_attr_env = fresh_st_attr_env}, ti_type_heaps) @@ -1907,7 +1907,7 @@ determine_arg (PR_Class class_app free_vars_and_types class_type) _ {fv_info_ptr = das_arg_types![prod_index] # {ats_types=[arg_type:_]} = ws_arg_type - (_, int_class_type, das_type_heaps) + (int_class_type, das_type_heaps) = substitute class_type das_type_heaps class_atype = { empty_atype & at_type = int_class_type } @@ -1941,7 +1941,7 @@ determine_arg (PR_Class class_app free_vars_and_types class_type) _ {fv_info_ptr # (free_vars_and_types,das_type_heaps) = mapSt subFVT free_vars_and_types das_type_heaps with subFVT (fv,ty) th - # (_,ty`,th`) = substitute ty th + # (ty`,th`) = substitute ty th = ((fv,ty`),th`) # ws_ats_types = [ { empty_atype & at_type = at_type } \\ (_, at_type) <- free_vars_and_types] @@ -1977,7 +1977,7 @@ determine_arg producer (Yes {st_args, st_args_strictness, st_result, st_attr_var (das_next_attr_nr, th_attrs) = foldSt bind_to_temp_attr_var st_attr_vars (das_next_attr_nr, th_attrs) // prepare for substitute calls - (_, (st_args, st_result), das_type_heaps) + ((st_args, st_result), das_type_heaps) = substitute (st_args, st_result) { das_type_heaps & th_vars = th_vars, th_attrs = th_attrs } nr_of_applied_args = symbol_arity @@ -3924,7 +3924,7 @@ where bind_and_substitute_before_expand types td_args td_attribute rhs_type rem_annots attribute ets_type_heaps # ets_type_heaps = bind_attr td_attribute attribute ets_type_heaps ets_type_heaps = (fold2St bind_var_and_attr td_args types ets_type_heaps) - (_, type, ets_type_heaps) = substitute_rhs rem_annots rhs_type.at_type ets_type_heaps + (type, ets_type_heaps) = substitute_rhs rem_annots rhs_type.at_type ets_type_heaps = (type, ets_type_heaps) where bind_var_and_attr { atv_attribute = TA_Var {av_info_ptr}, atv_variable = {tv_info_ptr} } {at_attribute,at_type} type_heaps=:{th_vars,th_attrs} diff --git a/frontend/transform.icl b/frontend/transform.icl index b999102..1fabc93 100644 --- a/frontend/transform.icl +++ b/frontend/transform.icl @@ -353,7 +353,7 @@ unfoldVariable var=:{var_ident,var_info_ptr} ui us substitute_class_types class_types No = (class_types, No) substitute_class_types class_types (Yes type_heaps) - # (_,new_class_types, type_heaps) = substitute class_types type_heaps + # (new_class_types, type_heaps) = substitute class_types type_heaps = (new_class_types, Yes type_heaps) readVarInfo var_info_ptr us @@ -549,7 +549,7 @@ where -> unfold_function_app app ui us substitute_EI_DictionaryType (EI_DictionaryType class_type) (Yes type_heaps) - # (_,new_class_type, type_heaps) = substitute class_type type_heaps + # (new_class_type, type_heaps) = substitute class_type type_heaps = (EI_DictionaryType new_class_type, Yes type_heaps) substitute_EI_DictionaryType x opt_type_heaps = (x, opt_type_heaps) @@ -662,10 +662,10 @@ substitute_let_or_case_type (EI_Extended extensions expr_info) yes_type_heaps # (new_expr_info, yes_type_heaps) = substitute_let_or_case_type expr_info yes_type_heaps = (EI_Extended extensions new_expr_info, yes_type_heaps) substitute_let_or_case_type (EI_CaseType case_type) (Yes type_heaps) - # (_,new_case_type, type_heaps) = substitute case_type type_heaps + # (new_case_type, type_heaps) = substitute case_type type_heaps = (EI_CaseType new_case_type, Yes type_heaps) substitute_let_or_case_type (EI_LetType let_type) (Yes type_heaps) - # (_,new_let_type, type_heaps) = substitute let_type type_heaps + # (new_let_type, type_heaps) = substitute let_type type_heaps = (EI_LetType new_let_type, Yes type_heaps) instance unfold CasePatterns diff --git a/frontend/type.icl b/frontend/type.icl index 9c679f1..7d78c87 100644 --- a/frontend/type.icl +++ b/frontend/type.icl @@ -371,7 +371,7 @@ tryToExpand type=:(TA {type_index={glob_object,glob_module}} type_args) type_att #! type_def = ti_common_defs.[glob_module].com_type_defs.[glob_object] = case type_def.td_rhs of SynType {at_type} - # (_, expanded_type, type_heaps) = substituteType type_def.td_attribute type_attr type_def.td_args type_args at_type type_heaps + # (expanded_type, type_heaps) = substituteType type_def.td_attribute type_attr type_def.td_args type_args at_type type_heaps -> (True, expanded_type, type_heaps) _ -> (False, type, type_heaps) @@ -379,7 +379,7 @@ tryToExpand type=:(TAS {type_index={glob_object,glob_module}} type_args _) type_ #! type_def = ti_common_defs.[glob_module].com_type_defs.[glob_object] = case type_def.td_rhs of SynType {at_type} - # (_, expanded_type, type_heaps) = substituteType type_def.td_attribute type_attr type_def.td_args type_args at_type type_heaps + # (expanded_type, type_heaps) = substituteType type_def.td_attribute type_attr type_def.td_args type_args at_type type_heaps -> (True, expanded_type, type_heaps) _ -> (False, type, type_heaps) diff --git a/frontend/typesupport.dcl b/frontend/typesupport.dcl index 7868d04..c25fe97 100644 --- a/frontend/typesupport.dcl +++ b/frontend/typesupport.dcl @@ -71,12 +71,12 @@ beautifulizeAttributes :: !SymbolType !*AttrVarHeap -> (!SymbolType, !.AttrVarHe updateExpressionTypes :: !SymbolType !SymbolType ![ExprInfoPtr] !*TypeHeaps !*ExpressionHeap -> (!*TypeHeaps, !*ExpressionHeap) -class substitute a :: !a !*TypeHeaps -> (!Bool, !a, !*TypeHeaps) +class substitute a :: !a !*TypeHeaps -> (!a, !*TypeHeaps) instance substitute AType, Type, TypeContext, AttrInequality, CaseType, [a] | substitute a, (a,b) | substitute a & substitute b -substituteType :: !TypeAttribute !TypeAttribute ![ATypeVar] ![AType] !Type !*TypeHeaps -> (!Bool, !Type, !*TypeHeaps) +substituteType :: !TypeAttribute !TypeAttribute ![ATypeVar] ![AType] !Type !*TypeHeaps -> (!Type, !*TypeHeaps) bindTypeVarsAndAttributes :: !TypeAttribute !TypeAttribute ![ATypeVar] ![AType] !*TypeHeaps -> *TypeHeaps; clearBindingsOfTypeVarsAndAttributes :: !TypeAttribute ![ATypeVar] !*TypeHeaps -> *TypeHeaps; diff --git a/frontend/typesupport.icl b/frontend/typesupport.icl index 4054a9c..b75b8c8 100644 --- a/frontend/typesupport.icl +++ b/frontend/typesupport.icl @@ -24,29 +24,33 @@ import genericsupport | UncheckedType !TempSymbolType | ExpandedType !SymbolType !TempSymbolType !TempSymbolType | EmptyFunctionType -simplifyTypeApplication :: !Type ![AType] -> (!Bool, !Type) -simplifyTypeApplication (TA type_cons=:{type_arity} cons_args) type_args +simplifyTypeApplication :: !Type ![AType] -> Type +simplifyTypeApplication type type_args + # (ok, type) + = simplifyAndCheckTypeApplication type type_args + | not ok + = abort "typesupport.simplifyTypeApplication: unexpected error" + = type + +simplifyAndCheckTypeApplication :: !Type ![AType] -> (!Bool, !Type) +simplifyAndCheckTypeApplication (TA type_cons=:{type_arity} cons_args) type_args = (True, TA { type_cons & type_arity = type_arity + length type_args } (cons_args ++ type_args)) -simplifyTypeApplication (TAS type_cons=:{type_arity} cons_args strictness) type_args +simplifyAndCheckTypeApplication (TAS type_cons=:{type_arity} cons_args strictness) type_args = (True, TAS { type_cons & type_arity = type_arity + length type_args } (cons_args ++ type_args) strictness) -simplifyTypeApplication (CV tv :@: type_args1) type_args2 +simplifyAndCheckTypeApplication (CV tv :@: type_args1) type_args2 = (True, CV tv :@: (type_args1 ++ type_args2)) -simplifyTypeApplication TArrow [type1, type2] +simplifyAndCheckTypeApplication TArrow [type1, type2] = (True, type1 --> type2) -simplifyTypeApplication TArrow [type] +simplifyAndCheckTypeApplication TArrow [type] = (True, TArrow1 type) -simplifyTypeApplication (TArrow1 type1) [type2] +simplifyAndCheckTypeApplication (TArrow1 type1) [type2] = (True, type1 --> type2) -simplifyTypeApplication (TV tv) type_args +simplifyAndCheckTypeApplication (TV tv) type_args = (True, CV tv :@: type_args) -simplifyTypeApplication (TB _) _ - = (False, TE) -simplifyTypeApplication (TArrow1 _) _ - = (False, TE) -simplifyTypeApplication (_ --> _ ) _ - = (False, TE) - - +simplifyAndCheckTypeApplication (TempV i) type_args + = (True, TempCV i :@: type_args) +simplifyAndCheckTypeApplication type type_args + = (False, type) :: AttributeEnv :== {! TypeAttribute } :: VarEnv :== {! Type } @@ -163,7 +167,7 @@ where # (type, cus) = cus!cus_var_env.[tempvar] # (type, cus) = cleanUpVariable cui.cui_top_level type tempvar cus (types, cus) = clean_up cui types cus - = (snd (simplifyTypeApplication type types), cus) + = (simplifyTypeApplication type types, cus) clean_up cui (TempQCV tempvar :@: types) cus # (type, cus) = cus!cus_var_env.[tempvar] # (TV tv, cus) = cleanUpVariable cui.cui_top_level type tempvar cus @@ -257,7 +261,7 @@ where | checkCleanUpResult cur1 cUndefinedVar = (cur1, TempCV tv_number :@: types, env) # (cur2, types, env) = cleanUpClosed types env - = (combineCleanUpResults cur1 cur2, snd (simplifyTypeApplication type types), env) + = (combineCleanUpResults cur1 cur2, simplifyTypeApplication type types, env) cleanUpClosed t env = (cClosed, t, env) @@ -583,13 +587,13 @@ where # (info, expr_heap) = readPtr expr_ptr expr_heap = case info of EI_CaseType case_type - # (_, case_type, type_heaps) = substitute case_type type_heaps + # (case_type, type_heaps) = substitute case_type type_heaps -> (type_heaps, expr_heap <:= (expr_ptr, EI_CaseType case_type)) EI_LetType let_type - # (_, let_type, type_heaps) = substitute let_type type_heaps + # (let_type, type_heaps) = substitute let_type type_heaps -> (type_heaps, expr_heap <:= (expr_ptr, EI_LetType let_type)) EI_DictionaryType dict_type - # (_, dict_type, type_heaps) = substitute dict_type type_heaps + # (dict_type, type_heaps) = substitute dict_type type_heaps -> (type_heaps, expr_heap <:= (expr_ptr, EI_DictionaryType dict_type)) @@ -637,12 +641,11 @@ instance bindInstances AType bindInstances {at_type=t1} {at_type=t2} type_var_heap = bindInstances t1 t2 type_var_heap -substituteType :: !TypeAttribute !TypeAttribute ![ATypeVar] ![AType] !Type !*TypeHeaps -> (!Bool, !Type, !*TypeHeaps) +substituteType :: !TypeAttribute !TypeAttribute ![ATypeVar] ![AType] !Type !*TypeHeaps -> (!Type, !*TypeHeaps) substituteType form_root_attribute act_root_attribute form_type_args act_type_args orig_type type_heaps # type_heaps = bindTypeVarsAndAttributes form_root_attribute act_root_attribute form_type_args act_type_args type_heaps - (ok, expanded_type, type_heaps) = substitute orig_type type_heaps - = (ok, expanded_type, clearBindingsOfTypeVarsAndAttributes form_root_attribute form_type_args type_heaps) - + (expanded_type, type_heaps) = substitute orig_type type_heaps + = (expanded_type, clearBindingsOfTypeVarsAndAttributes form_root_attribute form_type_args type_heaps) bindTypeVarsAndAttributes :: !TypeAttribute !TypeAttribute ![ATypeVar] ![AType] !*TypeHeaps -> *TypeHeaps bindTypeVarsAndAttributes form_root_attribute act_root_attribute form_type_args act_type_args type_heaps @@ -671,13 +674,13 @@ where clear_attribute _ th_attrs = th_attrs -class substitute a :: !a !*TypeHeaps -> (!Bool, !a, !*TypeHeaps) +class substitute a :: !a !*TypeHeaps -> (!a, !*TypeHeaps) instance substitute AType where substitute atype=:{at_attribute,at_type} heaps - # (ok, (at_attribute,at_type), heaps) = substitute (at_attribute,at_type) heaps - = (ok, { atype & at_attribute = at_attribute, at_type = at_type }, heaps) + # ((at_attribute,at_type), heaps) = substitute (at_attribute,at_type) heaps + = ({ atype & at_attribute = at_attribute, at_type = at_type }, heaps) instance substitute TypeAttribute where @@ -685,35 +688,35 @@ where #! av_info = sreadPtr av_info_ptr th_attrs = case av_info of AVI_Attr attr - -> (True, attr, heaps) + -> (attr, heaps) _ - -> (True, TA_Multi, heaps) + -> (TA_Multi, heaps) substitute TA_None heaps - = (True, TA_Multi, heaps) + = (TA_Multi, heaps) substitute attr heaps - = (True, attr, heaps) + = (attr, heaps) instance substitute (a,b) | substitute a & substitute b where substitute (x,y) heaps - # (ok_x, x, heaps) = substitute x heaps - (ok_y, y, heaps) = substitute y heaps - = (ok_x && ok_y, (x,y), heaps) + # (x, heaps) = substitute x heaps + (y, heaps) = substitute y heaps + = ((x,y), heaps) instance substitute [a] | substitute a where substitute [] heaps - = (True, [], heaps) + = ( [], heaps) substitute [t:ts] heaps - # (ok_t, t, heaps) = substitute t heaps - (ok_ts, ts, heaps) = substitute ts heaps - = (ok_t && ok_ts, [t:ts], heaps) + # (t, heaps) = substitute t heaps + ( ts, heaps) = substitute ts heaps + = ([t:ts], heaps) instance substitute TypeContext where substitute tc=:{tc_types} heaps - # (ok, tc_types, heaps) = substitute tc_types heaps - = (ok, { tc & tc_types = tc_types }, heaps) + # (tc_types, heaps) = substitute tc_types heaps + = ({ tc & tc_types = tc_types }, heaps) instance substitute Type where @@ -722,37 +725,36 @@ where heaps = { heaps & th_vars = th_vars } = case tv_info of TVI_Type type - -> (True, type, heaps) + -> (type, heaps) _ - -> (True, tv, heaps) + -> (tv, heaps) substitute (arg_type --> res_type) heaps - # (ok, (arg_type, res_type), heaps) = substitute (arg_type, res_type) heaps - = (ok, arg_type --> res_type, heaps) + # ((arg_type, res_type), heaps) = substitute (arg_type, res_type) heaps + = (arg_type --> res_type, heaps) substitute (TArrow1 arg_type) heaps - # (ok, arg_type, heaps) = substitute arg_type heaps - = (ok, TArrow1 arg_type, heaps) + # (arg_type, heaps) = substitute arg_type heaps + = (TArrow1 arg_type, heaps) substitute (TA cons_id cons_args) heaps - # (ok, cons_args, heaps) = substitute cons_args heaps - = (ok, TA cons_id cons_args, heaps) + # (cons_args, heaps) = substitute cons_args heaps + = (TA cons_id cons_args, heaps) substitute (TAS cons_id cons_args strictness) heaps - # (ok, cons_args, heaps) = substitute cons_args heaps - = (ok, TAS cons_id cons_args strictness, heaps) + # (cons_args, heaps) = substitute cons_args heaps + = (TAS cons_id cons_args strictness, heaps) substitute (CV type_var :@: types) heaps=:{th_vars} # (tv_info, th_vars) = readPtr type_var.tv_info_ptr th_vars heaps = { heaps & th_vars = th_vars } - (ok_types, types, heaps) = substitute types heaps + (types, heaps) = substitute types heaps = case tv_info of TVI_Type type - -> case type of - TempV i - -> (ok_types, TempCV i :@: types, heaps) - _ - # (ok_type, simplified_type) = simplifyTypeApplication type types - -> (ok_type && ok_types, simplified_type, heaps) - _ - -> (ok_types, CV type_var :@: types, heaps) + # (ok, simplified_type) = simplifyAndCheckTypeApplication type types + | ok + -> (simplified_type, heaps) + // otherwise + // this will lead to a kind check error later on + -> (CV type_var :@: types, heaps) + -> (CV type_var :@: types, heaps) substitute type heaps - = (True, type, heaps) + = (type, heaps) instance substitute AttributeVar where @@ -760,23 +762,23 @@ where #! av_info = sreadPtr av_info_ptr th_attrs = case av_info of AVI_Attr (TA_Var attr_var) - -> (True, attr_var, heaps) + -> (attr_var, heaps) _ - -> (True, av, heaps) + -> (av, heaps) instance substitute AttrInequality where substitute {ai_demanded,ai_offered} heaps - # (ok, (ai_demanded, ai_offered), heaps) = substitute (ai_demanded, ai_offered) heaps - = (ok, {ai_demanded = ai_demanded, ai_offered = ai_offered}, heaps) + # ((ai_demanded, ai_offered), heaps) = substitute (ai_demanded, ai_offered) heaps + = ({ai_demanded = ai_demanded, ai_offered = ai_offered}, heaps) instance substitute CaseType where substitute {ct_pattern_type, ct_result_type, ct_cons_types} heaps - # (ok1, ct_pattern_type, heaps) = substitute ct_pattern_type heaps - (ok2, ct_result_type, heaps) = substitute ct_result_type heaps - (ok3, ct_cons_types, heaps) = substitute ct_cons_types heaps - = (ok1 && ok2 && ok3, {ct_pattern_type = ct_pattern_type, ct_result_type = ct_result_type, + # (ct_pattern_type, heaps) = substitute ct_pattern_type heaps + (ct_result_type, heaps) = substitute ct_result_type heaps + (ct_cons_types, heaps) = substitute ct_cons_types heaps + = ({ct_pattern_type = ct_pattern_type, ct_result_type = ct_result_type, ct_cons_types = ct_cons_types}, heaps) class removeAnnotations a :: !a -> (!Bool, !a) |