Commit 6ff38bf1 authored by John van Groningen's avatar John van Groningen
Browse files

add EOL property

parent 8fcf5c33
definition module expand_types
import syntax
simplifyTypeApplication :: !Type ![AType] -> Type
convertSymbolType :: !Bool !{#CommonDefs} !SymbolType !Int !*ImportedTypes !ImportedConstructors !*TypeHeaps !*VarHeap
-> (!SymbolType, !*ImportedTypes,!ImportedConstructors,!*TypeHeaps,!*VarHeap)
convertSymbolTypeWithoutExpandingAbstractSynTypes :: !Bool !{#CommonDefs} !SymbolType !Int
!*ImportedTypes !ImportedConstructors !*TypeHeaps !*VarHeap
-> (!SymbolType, !Bool, !*ImportedTypes,!ImportedConstructors,!*TypeHeaps,!*VarHeap)
convertSymbolTypeWithoutCollectingImportedConstructors :: !Bool !{#CommonDefs} !SymbolType !Int !*ImportedTypes !*TypeHeaps !*VarHeap
-> (!SymbolType,!*ImportedTypes,!*TypeHeaps,!*VarHeap)
addTypesOfDictionaries :: !{#CommonDefs} ![TypeContext] ![AType] -> [AType]
RemoveAnnotationsMask:==1
ExpandAbstractSynTypesMask:==2
DontCollectImportedConstructors:==4
:: ExpandTypeState =
{ ets_type_defs :: !.{#{#CheckedTypeDef}}
, ets_collected_conses :: !ImportedConstructors
, ets_type_heaps :: !.TypeHeaps
, ets_var_heap :: !.VarHeap
, ets_main_dcl_module_n :: !Int
, ets_contains_unexpanded_abs_syn_type :: !Bool
}
class expandSynTypes a :: !Int !{#CommonDefs} !a !*ExpandTypeState -> (!Bool,!a, !*ExpandTypeState)
instance expandSynTypes (a,b) | expandSynTypes a & expandSynTypes b special a=[AType],b=AType
class substitute a :: !a !*TypeHeaps -> (!Bool, !a, !*TypeHeaps)
instance substitute Type,AType,TypeContext,AttrInequality,CaseType
instance substitute [a] | substitute a special a=AType; a=TypeContext; a=AttrInequality
class removeAnnotations a :: !a -> (!Bool, !a)
instance removeAnnotations Type,SymbolType
definition module expand_types
import syntax
simplifyTypeApplication :: !Type ![AType] -> Type
convertSymbolType :: !Bool !{#CommonDefs} !SymbolType !Int !*ImportedTypes !ImportedConstructors !*TypeHeaps !*VarHeap
-> (!SymbolType, !*ImportedTypes,!ImportedConstructors,!*TypeHeaps,!*VarHeap)
convertSymbolTypeWithoutExpandingAbstractSynTypes :: !Bool !{#CommonDefs} !SymbolType !Int
!*ImportedTypes !ImportedConstructors !*TypeHeaps !*VarHeap
-> (!SymbolType, !Bool, !*ImportedTypes,!ImportedConstructors,!*TypeHeaps,!*VarHeap)
convertSymbolTypeWithoutCollectingImportedConstructors :: !Bool !{#CommonDefs} !SymbolType !Int !*ImportedTypes !*TypeHeaps !*VarHeap
-> (!SymbolType,!*ImportedTypes,!*TypeHeaps,!*VarHeap)
addTypesOfDictionaries :: !{#CommonDefs} ![TypeContext] ![AType] -> [AType]
RemoveAnnotationsMask:==1
ExpandAbstractSynTypesMask:==2
DontCollectImportedConstructors:==4
:: ExpandTypeState =
{ ets_type_defs :: !.{#{#CheckedTypeDef}}
, ets_collected_conses :: !ImportedConstructors
, ets_type_heaps :: !.TypeHeaps
, ets_var_heap :: !.VarHeap
, ets_main_dcl_module_n :: !Int
, ets_contains_unexpanded_abs_syn_type :: !Bool
}
class expandSynTypes a :: !Int !{#CommonDefs} !a !*ExpandTypeState -> (!Bool,!a, !*ExpandTypeState)
instance expandSynTypes (a,b) | expandSynTypes a & expandSynTypes b special a=[AType],b=AType
class substitute a :: !a !*TypeHeaps -> (!Bool, !a, !*TypeHeaps)
instance substitute Type,AType,TypeContext,AttrInequality,CaseType
instance substitute [a] | substitute a special a=AType; a=TypeContext; a=AttrInequality
class removeAnnotations a :: !a -> (!Bool, !a)
instance removeAnnotations Type,SymbolType
implementation module expand_types
import StdEnv
import syntax,predef,containers,utilities
simplifyTypeApplication :: !Type ![AType] -> Type
simplifyTypeApplication type type_args
# (ok, type)
= simplifyAndCheckTypeApplication type type_args
| not ok
= abort "expand_types.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))
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)
simplifyAndCheckTypeApplication (CV tv :@: type_args1) type_args2
= (True, CV tv :@: (type_args1 ++ type_args2))
simplifyAndCheckTypeApplication TArrow [type1, type2]
= (True, type1 --> type2)
simplifyAndCheckTypeApplication TArrow [type]
= (True, TArrow1 type)
simplifyAndCheckTypeApplication (TArrow1 type1) [type2]
= (True, type1 --> type2)
simplifyAndCheckTypeApplication (TV tv) type_args
= (True, CV tv :@: type_args)
simplifyAndCheckTypeApplication (TempV i) type_args
= (True, TempCV i :@: type_args)
simplifyAndCheckTypeApplication type type_args
= (False, type)
readVarInfo :: VarInfoPtr *VarHeap -> (VarInfo, !*VarHeap)
readVarInfo var_info_ptr var_heap
# (var_info, var_heap) = readPtr var_info_ptr var_heap
= case var_info of
VI_Extended _ original_var_info -> (original_var_info, var_heap)
_ -> (var_info, var_heap)
writeVarInfo :: VarInfoPtr VarInfo *VarHeap -> *VarHeap
writeVarInfo var_info_ptr new_var_info var_heap
# (old_var_info, var_heap) = readPtr var_info_ptr var_heap
= case old_var_info of
VI_Extended extensions _ -> writePtr var_info_ptr (VI_Extended extensions new_var_info) var_heap
_ -> writePtr var_info_ptr new_var_info var_heap
RemoveAnnotationsMask:==1
ExpandAbstractSynTypesMask:==2
DontCollectImportedConstructorsAndRestorePointers:==4
convertSymbolType :: !Bool !{#CommonDefs} !SymbolType !Int !*ImportedTypes !ImportedConstructors !*TypeHeaps !*VarHeap
-> (!SymbolType, !*ImportedTypes,!ImportedConstructors,!*TypeHeaps,!*VarHeap)
convertSymbolType rem_annots common_defs st main_dcl_module_n imported_types collected_imports type_heaps var_heap
# (st, ets_contains_unexpanded_abs_syn_type,ets_type_defs, ets_collected_conses, ets_type_heaps, ets_var_heap)
= convertSymbolType_ (if rem_annots (RemoveAnnotationsMask bitor ExpandAbstractSynTypesMask) ExpandAbstractSynTypesMask) common_defs st main_dcl_module_n imported_types collected_imports type_heaps var_heap
= (st, ets_type_defs, ets_collected_conses, ets_type_heaps, ets_var_heap)
convertSymbolTypeWithoutExpandingAbstractSynTypes :: !Bool !{#CommonDefs} !SymbolType !Int
!*ImportedTypes !ImportedConstructors !*TypeHeaps !*VarHeap
-> (!SymbolType, !Bool, !*ImportedTypes,!ImportedConstructors,!*TypeHeaps,!*VarHeap)
convertSymbolTypeWithoutExpandingAbstractSynTypes rem_annots common_defs st main_dcl_module_n imported_types collected_imports type_heaps var_heap
= convertSymbolType_ (if rem_annots RemoveAnnotationsMask 0) common_defs st main_dcl_module_n imported_types collected_imports type_heaps var_heap
convertSymbolTypeWithoutCollectingImportedConstructors :: !Bool !{#CommonDefs} !SymbolType !Int !*ImportedTypes !*TypeHeaps !*VarHeap
-> (!SymbolType,!*ImportedTypes,!*TypeHeaps,!*VarHeap)
convertSymbolTypeWithoutCollectingImportedConstructors rem_annots common_defs st main_dcl_module_n imported_types type_heaps var_heap
# rem_annots
= if rem_annots
(RemoveAnnotationsMask bitor ExpandAbstractSynTypesMask bitor DontCollectImportedConstructorsAndRestorePointers)
(ExpandAbstractSynTypesMask bitor DontCollectImportedConstructorsAndRestorePointers)
# (st, ets_contains_unexpanded_abs_syn_type,ets_type_defs, ets_collected_conses, ets_type_heaps, ets_var_heap)
= convertSymbolType_ rem_annots common_defs st main_dcl_module_n imported_types [] type_heaps var_heap
= (st, ets_type_defs, ets_type_heaps, ets_var_heap)
convertSymbolType_ :: !Int !{# CommonDefs} !SymbolType !Int !*ImportedTypes !ImportedConstructors !*TypeHeaps !*VarHeap
-> (!SymbolType, !Bool,!*ImportedTypes, !ImportedConstructors, !*TypeHeaps, !*VarHeap)
convertSymbolType_ rem_annots common_defs st main_dcl_module_n imported_types collected_imports type_heaps var_heap
# ets = { ets_type_defs = imported_types
, ets_collected_conses = collected_imports
, ets_type_heaps = type_heaps
, ets_var_heap = var_heap
, ets_main_dcl_module_n = main_dcl_module_n
, ets_contains_unexpanded_abs_syn_type = False
}
# {st_args,st_result,st_context,st_args_strictness} = st
#! (_,(st_args,st_result), ets) = expandSynTypes rem_annots common_defs (st_args,st_result) ets
# new_st_args = addTypesOfDictionaries common_defs st_context st_args
new_st_arity = length new_st_args
st = { st
& st_args = new_st_args
, st_result = st_result
, st_arity = new_st_arity
, st_args_strictness = insert_n_strictness_values_at_beginning (new_st_arity-length st_args) st_args_strictness
, st_context = []
}
# {ets_type_defs, ets_collected_conses, ets_type_heaps, ets_var_heap,ets_contains_unexpanded_abs_syn_type} = ets
= (st, ets_contains_unexpanded_abs_syn_type, ets_type_defs, ets_collected_conses, ets_type_heaps, ets_var_heap)
addTypesOfDictionaries :: !{#CommonDefs} ![TypeContext] ![AType] -> [AType]
addTypesOfDictionaries common_defs type_contexts type_args
= mapAppend (add_types_of_dictionary common_defs) type_contexts type_args
where
add_types_of_dictionary common_defs {tc_class = TCGeneric {gtc_generic_dict={gi_module,gi_index}}, tc_types}
#! generict_dict_ident = predefined_idents.[PD_TypeGenericDict]
/*
AA HACK:
Generic classes are always generated locally,
and therefore the their dictionaries are also generated localy.
Overloaded functions in DCL modules can have generic context restrictions, i.e. they will
get generic class dictionaries.
Problem: DCL function types refer to ICL type defs of dictionaries.
Solution: plug a dummy dictinary type, defined in StdGeneric.
It is possible because all generic class have one class argument and one member.
*/
# dict_type_symb = MakeTypeSymbIdent {glob_object = gi_index, glob_module = gi_module} generict_dict_ident 1
# type_arg = {at_attribute = TA_Multi, at_type=hd tc_types}
= {at_attribute = TA_Multi, at_type = TA dict_type_symb [type_arg]}
add_types_of_dictionary common_defs {tc_class = TCClass {glob_module, glob_object={ds_index,ds_ident}}, tc_types}
# {class_arity, class_dictionary={ds_ident,ds_index}, class_cons_vars}
= common_defs.[glob_module].com_class_defs.[ds_index]
dict_type_symb
= MakeTypeSymbIdent {glob_object = ds_index, glob_module = glob_module} ds_ident class_arity
(dict_args,_) = mapSt (\type class_cons_vars
-> let at_attribute = if (class_cons_vars bitand 1<>0) TA_MultiOfPropagatingConsVar TA_Multi
in ({at_attribute = at_attribute, at_type = type}, class_cons_vars>>1)
) tc_types class_cons_vars
= {at_attribute = TA_Multi, /* at_annotation = AN_Strict, */ at_type = TA dict_type_symb dict_args}
:: ExpandTypeState =
{ ets_type_defs :: !.{#{#CheckedTypeDef}}
, ets_collected_conses :: !ImportedConstructors
, ets_type_heaps :: !.TypeHeaps
, ets_var_heap :: !.VarHeap
, ets_main_dcl_module_n :: !Int
, ets_contains_unexpanded_abs_syn_type :: !Bool
}
class expandSynTypes a :: !Int !{#CommonDefs} !a !*ExpandTypeState -> (!Bool,!a, !*ExpandTypeState)
instance expandSynTypes Type
where
expandSynTypes rem_annots common_defs type=:(arg_type --> res_type) ets
# (changed,(arg_type, res_type), ets) = expandSynTypes rem_annots common_defs (arg_type, res_type) ets
| changed
= (True,arg_type --> res_type, ets)
= (False,type, ets)
expandSynTypes rem_annots common_defs type=:(TB _) ets
= (False,type, ets)
expandSynTypes rem_annots common_defs type=:(cons_var :@: types) ets
# (changed,types, ets) = expandSynTypes rem_annots common_defs types ets
| changed
= (True,cons_var :@: types, ets)
= (False,type, ets)
expandSynTypes rem_annots common_defs type=:(TA type_symb types) ets
= expand_syn_types_in_TA rem_annots common_defs type TA_Multi ets
expandSynTypes rem_annots common_defs type=:(TAS type_symb types _) ets
= expand_syn_types_in_TA rem_annots common_defs type TA_Multi ets
expandSynTypes rem_annots common_defs tfa_type=:(TFA vars type) ets
# (changed,type, ets) = expandSynTypes rem_annots common_defs type ets
| changed
= (True,TFA vars type, ets)
= (False,tfa_type, ets)
expandSynTypes rem_annots common_defs tfac_type=:(TFAC vars type type_context) ets
# (changed,type, ets) = expandSynTypes rem_annots common_defs type ets
| changed
= (True,TFAC vars type type_context, ets)
= (False,tfac_type, ets)
expandSynTypes rem_annots common_defs type ets
= (False,type, ets)
instance expandSynTypes [a] | expandSynTypes a
where
expandSynTypes rem_annots common_defs [] ets
= (False,[],ets)
expandSynTypes rem_annots common_defs t=:[type:types] ets
#! (changed_type,type,ets) = expandSynTypes rem_annots common_defs type ets
(changed_types,types,ets) = expandSynTypes rem_annots common_defs types ets
| changed_type || changed_types
= (True,[type:types],ets)
= (False,t,ets)
instance expandSynTypes (a,b) | expandSynTypes a & expandSynTypes b
where
expandSynTypes rem_annots common_defs (type1,type2) ets
#! (changed_type1,type1,ets) = expandSynTypes rem_annots common_defs type1 ets
(changed_type2,type2,ets) = expandSynTypes rem_annots common_defs type2 ets
= (changed_type1 || changed_type2,(type1,type2),ets)
instance expandSynTypes AType
where
expandSynTypes rem_annots common_defs atype ets
= expand_syn_types_in_a_type rem_annots common_defs atype ets
where
expand_syn_types_in_a_type :: !.Int !{#.CommonDefs} !.AType !*ExpandTypeState -> (!.Bool,!AType,!.ExpandTypeState)
expand_syn_types_in_a_type rem_annots common_defs atype=:{at_type = at_type=: TA type_symb types,at_attribute} ets
# (changed,at_type, ets) = expand_syn_types_in_TA rem_annots common_defs at_type at_attribute ets
| changed
= (True,{ atype & at_type = at_type }, ets)
= (False,atype,ets)
expand_syn_types_in_a_type rem_annots common_defs atype=:{at_type = at_type=: TAS type_symb types _,at_attribute} ets
# (changed,at_type, ets) = expand_syn_types_in_TA rem_annots common_defs at_type at_attribute ets
| changed
= (True,{ atype & at_type = at_type }, ets)
= (False,atype,ets)
expand_syn_types_in_a_type rem_annots common_defs atype ets
# (changed,at_type, ets) = expandSynTypes rem_annots common_defs atype.at_type ets
| changed
= (True,{ atype & at_type = at_type }, ets)
= (False,atype,ets)
expand_syn_types_in_TA :: !.Int !{#.CommonDefs} !.Type !.TypeAttribute !*ExpandTypeState -> (!Bool,!Type,!.ExpandTypeState)
expand_syn_types_in_TA rem_annots common_defs ta_type attribute ets=:{ets_type_defs}
# (glob_object,glob_module,types) = case ta_type of
(TA type_symb=:{type_index={glob_object,glob_module},type_ident} types) -> (glob_object,glob_module,types)
(TAS type_symb=:{type_index={glob_object,glob_module},type_ident} types strictness) -> (glob_object,glob_module,types)
# ({td_rhs,td_ident,td_args,td_attribute},ets_type_defs) = ets_type_defs![glob_module].[glob_object]
ets = { ets & ets_type_defs = ets_type_defs }
= case td_rhs of
SynType rhs_type
-> expand_type types td_args td_attribute rhs_type rem_annots attribute ets
AbstractSynType _ rhs_type
| (rem_annots bitand ExpandAbstractSynTypesMask)<>0
-> expand_type types td_args td_attribute rhs_type rem_annots attribute ets
# ets = {ets & ets_contains_unexpanded_abs_syn_type=True }
#! (changed,types, ets) = expandSynTypes rem_annots common_defs types ets
# ta_type = if changed
( case ta_type of
TA type_symb _ -> TA type_symb types
TAS type_symb _ strictness -> TAS type_symb types strictness
) ta_type
| glob_module == ets.ets_main_dcl_module_n
-> (changed,ta_type, ets)
-> (changed,ta_type, collect_imported_constructors common_defs glob_module td_rhs ets)
NewType {ds_index}
# {cons_type={st_args=[arg_type:_]}} = common_defs.[glob_module].com_cons_defs.[ds_index];
-> expand_type types td_args td_attribute arg_type rem_annots attribute ets
_
#! (changed,types, ets) = expandSynTypes rem_annots common_defs types ets
# ta_type = if changed
( case ta_type of
TA type_symb _ -> TA type_symb types
TAS type_symb _ strictness -> TAS type_symb types strictness
) ta_type
| glob_module == ets.ets_main_dcl_module_n || (rem_annots bitand DontCollectImportedConstructorsAndRestorePointers)<>0
-> (changed,ta_type, ets)
-> (changed,ta_type, collect_imported_constructors common_defs glob_module td_rhs ets)
where
expand_type types td_args td_attribute rhs_type rem_annots attribute ets
| (rem_annots bitand DontCollectImportedConstructorsAndRestorePointers)==0
# (type,ets_type_heaps) = bind_and_substitute_before_expand types td_args td_attribute rhs_type rem_annots attribute ets.ets_type_heaps
(_,type,ets) = expandSynTypes rem_annots common_defs type {ets & ets_type_heaps = ets_type_heaps}
= (True,type,ets)
# (type,rev_tv_infos,ets_type_heaps) = bind_save_and_substitute_before_expand types td_args td_attribute rhs_type rem_annots attribute ets.ets_type_heaps
(_,type,ets=:{ets_type_heaps}) = expandSynTypes rem_annots common_defs type {ets & ets_type_heaps = ets_type_heaps}
th_vars = fold2St restore_tv_info (reverse rev_tv_infos) td_args ets_type_heaps.th_vars
= (True,type,{ets & ets_type_heaps = {ets_type_heaps & th_vars=th_vars}})
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
= substitute_rhs rem_annots rhs_type.at_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}
= {type_heaps & th_vars = th_vars <:= (tv_info_ptr, TVI_Type at_type), th_attrs = th_attrs <:= (av_info_ptr, AVI_Attr at_attribute)}
bind_var_and_attr {atv_variable = {tv_info_ptr}} {at_type} type_heaps=:{th_vars}
= {type_heaps & th_vars = th_vars <:= (tv_info_ptr, TVI_Type at_type)}
bind_save_and_substitute_before_expand types td_args td_attribute rhs_type rem_annots attribute ets_type_heaps
# ets_type_heaps=:{th_vars,th_attrs} = bind_attr td_attribute attribute ets_type_heaps
(rev_tv_infos,th_vars,th_attrs) = fold2St bind_and_save_var_and_attr td_args types ([],th_vars,th_attrs)
(type,heaps) = substitute_rhs rem_annots rhs_type.at_type {ets_type_heaps & th_vars=th_vars,th_attrs=th_attrs}
= (type,rev_tv_infos,heaps)
where
bind_and_save_var_and_attr {atv_attribute = TA_Var {av_info_ptr}, atv_variable = {tv_info_ptr}} {at_attribute,at_type} (rev_tv_infos,th_vars,th_attrs)
# (tv_info,th_vars) = readPtr tv_info_ptr th_vars
= ([tv_info:rev_tv_infos],th_vars <:= (tv_info_ptr, TVI_Type at_type), th_attrs <:= (av_info_ptr, AVI_Attr at_attribute))
bind_and_save_var_and_attr {atv_variable = {tv_info_ptr}} {at_type} (rev_tv_infos,th_vars,th_attrs)
# (tv_info,th_vars) = readPtr tv_info_ptr th_vars
= ([tv_info:rev_tv_infos],th_vars <:= (tv_info_ptr, TVI_Type at_type),th_attrs)
restore_tv_info tv_info {atv_variable={tv_info_ptr}} th_vars
= writePtr tv_info_ptr tv_info th_vars
bind_attr (TA_Var {av_info_ptr}) attribute type_heaps=:{th_attrs}
= {type_heaps & th_attrs = th_attrs <:= (av_info_ptr, AVI_Attr attribute)}
bind_attr _ attribute type_heaps
= type_heaps
substitute_rhs rem_annots rhs_type type_heaps
| rem_annots bitand RemoveAnnotationsMask<>0
# (_, rhs_type) = removeAnnotations rhs_type
# (_,type,heaps) = substitute rhs_type type_heaps
= (type,heaps)
# (_,type,heaps) = substitute rhs_type type_heaps
= (type,heaps)
collect_imported_constructors :: !{#.CommonDefs} !.Int !.TypeRhs !*ExpandTypeState -> .ExpandTypeState
collect_imported_constructors common_defs mod_index (RecordType {rt_constructor}) ets=:{ets_collected_conses,ets_var_heap}
# (ets_collected_conses, ets_var_heap)
= collect_imported_constructor mod_index common_defs.[mod_index].com_cons_defs rt_constructor (ets_collected_conses, ets_var_heap)
= { ets & ets_collected_conses = ets_collected_conses, ets_var_heap = ets_var_heap }
collect_imported_constructors common_defs mod_index (AlgType constructors) ets=:{ets_collected_conses,ets_var_heap}
# (ets_collected_conses, ets_var_heap)
= foldSt (collect_imported_constructor mod_index common_defs.[mod_index].com_cons_defs) constructors (ets_collected_conses, ets_var_heap)
= { ets & ets_collected_conses = ets_collected_conses, ets_var_heap = ets_var_heap }
collect_imported_constructors common_defs mod_index _ ets
= ets
collect_imported_constructor :: !.Int !{#.ConsDef} !.DefinedSymbol !*(!u:[v:(Global .Int)],!*(Heap VarInfo)) -> (!w:[x:(Global Int)],!.(Heap VarInfo)), [u <= w,v <= x]
collect_imported_constructor mod_index cons_defs {ds_index} (collected_conses, var_heap)
# {cons_type_ptr} = cons_defs.[ds_index]
(type_info, var_heap) = readVarInfo cons_type_ptr var_heap
| has_been_collected type_info
= (collected_conses, var_heap)
= ([{ glob_module = mod_index, glob_object = ds_index } : collected_conses ], writeVarInfo cons_type_ptr VI_Used var_heap)
where
has_been_collected VI_Used = True
has_been_collected (VI_ExpandedType _) = True
has_been_collected _ = False
class substitute a :: !a !*TypeHeaps -> (!Bool, !a, !*TypeHeaps)
instance substitute AType
where
substitute atype=:{at_attribute,at_type} heaps
# (changed_attribute, at_attribute_r, heaps) = substitute at_attribute heaps
# (changed_type, at_type_r, heaps) = substitute at_type heaps
| changed_attribute
| changed_type
= (True, {at_attribute = at_attribute_r, at_type = at_type_r}, heaps)
= (True, {atype & at_attribute = at_attribute_r}, heaps)
| changed_type
= (True, {atype & at_type = at_type_r}, heaps)
= (False, atype, heaps)
instance substitute TypeAttribute
where
substitute (TA_Var {av_info_ptr}) heaps=:{th_attrs}
= case sreadPtr av_info_ptr th_attrs of
AVI_Attr attr
-> (True, attr, heaps)
_
-> (True, TA_Multi, heaps)
substitute (TA_RootVar {av_info_ptr}) heaps=:{th_attrs}
= case sreadPtr av_info_ptr th_attrs of
AVI_Attr attr
-> (True, attr, heaps)
_
-> (True, TA_Multi, heaps)
substitute TA_None heaps
= (True, TA_Multi, heaps)
substitute attr heaps
= (False, attr, heaps)
instance substitute Type
where
substitute tv=:(TV {tv_info_ptr}) heaps=:{th_vars}
# (tv_info, th_vars) = readPtr tv_info_ptr th_vars
heaps & th_vars = th_vars
= case tv_info of
TVI_Type type
-> (True, type, heaps)
_
-> (False, tv, heaps)
substitute type=:(arg_type --> res_type) heaps
# (changed_arg_type, arg_type_r, heaps) = substitute arg_type heaps
# (changed_res_type, res_type_r, heaps) = substitute res_type heaps
| changed_arg_type
| changed_res_type
= (True, arg_type_r --> res_type_r, heaps)
= (True, arg_type_r --> res_type, heaps)
| changed_res_type
= (True, arg_type --> res_type_r, heaps)
= (False, type, heaps)
substitute type=:(TA cons_id cons_args) heaps
# (changed, cons_args_r, heaps) = substitute cons_args heaps
| changed
= (True, TA cons_id cons_args_r, heaps)
= (False, type, heaps)
substitute type=:(TAS cons_id cons_args strictness) heaps
# (changed, cons_args_r, heaps) = substitute cons_args heaps
| changed
= (True, TAS cons_id cons_args_r strictness, heaps)
= (False, type, heaps)
substitute type=:(CV type_var :@: types) heaps=:{th_vars}
# (tv_info, th_vars) = readPtr type_var.tv_info_ptr th_vars
heaps & th_vars = th_vars
(changed, types_r, heaps) = substitute types heaps
| changed
= case tv_info of
TVI_Type s_type
# (ok, simplified_type) = simplifyAndCheckTypeApplication s_type types_r
| ok
-> (True, simplified_type, heaps)
// this will lead to a kind check error later on
-> (True, CV type_var :@: types_r, heaps)
_
-> (True, CV type_var :@: types_r, heaps)
= case tv_info of
TVI_Type s_type
# (ok, simplified_type) = simplifyAndCheckTypeApplication s_type types
| ok
-> (True, simplified_type, heaps)
// this will lead to a kind check error later on
-> (False, type, heaps)
_
-> (False, type, heaps)
substitute type=:(TArrow1 arg_type) heaps
# (changed, arg_type_r, heaps) = substitute arg_type heaps
| changed
= (True, TArrow1 arg_type_r, heaps)
= (False, type, heaps)
substitute type heaps
= (False, type, heaps)
instance substitute [a] | substitute a
where
substitute lt=:[t:ts] heaps
# (changed_t, t_r, heaps) = substitute t heaps
(changed_ts, ts_r, heaps) = substitute ts heaps
| changed_t
| changed_ts
= (True, [t_r:ts_r], heaps)
= (True, [t_r:ts], heaps)
| changed_ts
= (True, [t:ts_r], heaps)
= (False, lt, heaps)
substitute [] heaps
= (False, [], heaps)
instance substitute TypeContext
where
substitute tc=:{tc_types} heaps
# (changed_tc_types, tc_types_r, heaps) = substitute tc_types heaps
| changed_tc_types
= (True, {tc & tc_types = tc_types_r}, heaps)
= (False, tc, heaps)
instance substitute AttributeVar
where
substitute av=:{av_info_ptr} heaps=:{th_attrs}