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Commit 8024fd77 authored by Sjaak Smetsers's avatar Sjaak Smetsers
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Added existential attribute variables to type definitions

parent 5c8aeef4
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frontend/analtypes.icl
View file @ 8024fd77
......@@ -51,9 +51,9 @@ partionateAndExpandTypes used_module_numbers main_dcl_module_index icl_common=:{
= (reverse pi_groups, common_defs, pi_type_def_infos, {icl_common & com_type_defs = icl_type_defs}, dcl_modules, type_heaps, error)
where
copy_type_defs_and_create_marks_and_infos used_module_numbers main_dcl_module_index nr_of_types_in_icl_mod nr_of_modules (icl_type_defs, dcl_modules)
# type_defs = { {} \\ module_nr <- [0..nr_of_modules] }
marks = { {} \\ module_nr <- [0..nr_of_modules] }
type_def_infos = { {} \\ module_nr <- [0..nr_of_modules] }
# type_defs = { {} \\ module_nr <- [1..nr_of_modules] }
marks = { {} \\ module_nr <- [1..nr_of_modules] }
type_def_infos = { {} \\ module_nr <- [1..nr_of_modules] }
= iFoldSt (copy_type_def_and_create_marks_and_infos used_module_numbers main_dcl_module_index nr_of_types_in_icl_mod) 0 nr_of_modules
(icl_type_defs, dcl_modules, type_defs, marks, type_def_infos)
where
......
frontend/checktypes.icl
View file @ 8024fd77
......@@ -279,6 +279,7 @@ where
= ({ ts & ts_cons_defs = { ts.ts_cons_defs & [ds_index] =
{ cons_def & cons_type = cons_type, cons_index = cons_index, cons_type_index = cti.cti_type_index, cons_exi_vars = exi_vars,
cons_type_ptr = new_type_ptr, cons_arg_vars = cons_arg_vars }}}, { ti & ti_var_heap = ti_var_heap }, cs)
// ---> ("bind_types_of_constructors", cons_def.cons_symb, exi_vars, cons_type)
where
bind_types_of_cons :: ![AType] !CurrentTypeInfo ![TypeVar] ![AttrInequality] !(!*TypeSymbols, !*TypeInfo, !*CheckState)
-> !(![AType], ![[ATypeVar]], ![AttrInequality], !(!*TypeSymbols, !*TypeInfo, !*CheckState))
......@@ -1056,28 +1057,32 @@ where
= (TA_Unique, attr_vars, attr_var_heap, cs)
check_attribute is_rank_two attr name attr_vars attr_var_heap cs
| is_rank_two
= check_rank_two_attribute attr name attr_vars attr_var_heap cs
= check_rank_two_attribute attr attr_vars attr_var_heap cs
= check_global_attribute attr name attr_vars attr_var_heap cs
where
check_global_attribute TA_Multi name attr_vars attr_var_heap cs
# (attr_info_ptr, attr_var_heap) = newPtr AVI_Empty attr_var_heap
new_var = { av_name = emptyIdent name, av_info_ptr = attr_info_ptr}
= (TA_Var new_var, [new_var : attr_vars], attr_var_heap, cs)
# (attr_info_ptr, attr_var_heap) = newPtr AVI_Empty attr_var_heap
new_var = { av_name = emptyIdent name, av_info_ptr = attr_info_ptr}
= (TA_Var new_var, [new_var : attr_vars], attr_var_heap, cs)
check_global_attribute TA_None name attr_vars attr_var_heap cs
# (attr_info_ptr, attr_var_heap) = newPtr AVI_Empty attr_var_heap
new_var = { av_name = emptyIdent name, av_info_ptr = attr_info_ptr}
= (TA_Var new_var, [new_var : attr_vars], attr_var_heap, cs)
# (attr_info_ptr, attr_var_heap) = newPtr AVI_Empty attr_var_heap
new_var = { av_name = emptyIdent name, av_info_ptr = attr_info_ptr}
= (TA_Var new_var, [new_var : attr_vars], attr_var_heap, cs)
check_global_attribute _ name attr_vars attr_var_heap cs
= (TA_Multi, attr_vars, attr_var_heap, checkError name "specified attribute variable not allowed" cs)
check_rank_two_attribute TA_Anonymous name attr_vars attr_var_heap cs
check_rank_two_attribute (TA_Var var) attr_vars attr_var_heap cs
# (attr_info_ptr, attr_var_heap) = newPtr AVI_Empty attr_var_heap
new_var = { var & av_info_ptr = attr_info_ptr}
= (TA_Var new_var, [new_var : attr_vars], attr_var_heap, cs)
check_rank_two_attribute TA_Anonymous attr_vars attr_var_heap cs
= abort "check_rank_two_attribute (TA_Anonymous, check_types.icl)"
/* # (attr_info_ptr, attr_var_heap) = newPtr AVI_Empty attr_var_heap
new_var = { av_name = emptyIdent name, av_info_ptr = attr_info_ptr}
= (TA_Var new_var, [new_var : attr_vars], attr_var_heap, cs)
check_rank_two_attribute attr name attr_vars attr_var_heap cs
*/ check_rank_two_attribute attr attr_vars attr_var_heap cs
= (attr, attr_vars, attr_var_heap, cs)
addExistentionalTypeVariablesToSymbolTable :: !TypeAttribute ![ATypeVar] !*TypeHeaps !*CheckState
-> (![ATypeVar], !(!*TypeHeaps, !*CheckState))
addExistentionalTypeVariablesToSymbolTable root_attr type_vars heaps cs
......@@ -1092,15 +1097,15 @@ where
| entry.ste_def_level < cGlobalScope // cOuterMostLevel
# (tv_info_ptr, th_vars) = newPtr TVI_Empty th_vars
atv_variable = { atv_variable & tv_info_ptr = tv_info_ptr }
(atv_attribute, cs_error) = check_attribute atv_attribute root_attr tv_name.id_name cs_error
(atv_attribute, th_attrs, cs_error) = check_attribute atv_attribute root_attr tv_name.id_name th_attrs cs_error
cs_symbol_table = cs_symbol_table <:= (tv_info, {ste_index = NoIndex, ste_kind = STE_BoundTypeVariable {stv_attribute = atv_attribute,
stv_info_ptr = tv_info_ptr, stv_count = 0 }, ste_def_level = cGlobalScope /* cOuterMostLevel */, ste_previous = entry })
heaps = { heaps & th_vars = th_vars }
heaps = { heaps & th_vars = th_vars, th_attrs = th_attrs }
= ({atv & atv_variable = atv_variable, atv_attribute = atv_attribute},
(heaps, { cs & cs_symbol_table = cs_symbol_table, cs_error = cs_error}))
= (atv, ({ heaps & th_vars = th_vars },
{ cs & cs_symbol_table = cs_symbol_table, cs_error = checkError tv_name.id_name "type variable already defined" cs_error}))
/*
check_attribute :: !TypeAttribute !TypeAttribute !String !*ErrorAdmin
-> (!TypeAttribute, !*ErrorAdmin)
check_attribute TA_Multi root_attr name error
......@@ -1117,6 +1122,28 @@ where
-> (PA_BUG (TA_RootVar (abort "SwitchUniquenessBug is on")) root_attr, error)
check_attribute attr root_attr name error
= (TA_Multi, checkError name "specified attribute not allowed" error)
*/
check_attribute :: !TypeAttribute !TypeAttribute !String !*AttrVarHeap !*ErrorAdmin
-> (!TypeAttribute, !*AttrVarHeap, !*ErrorAdmin)
check_attribute TA_Multi root_attr name attr_var_heap error
= (TA_Multi, attr_var_heap, error)
check_attribute TA_None root_attr name attr_var_heap error
= (TA_Multi, attr_var_heap, error)
check_attribute TA_Unique root_attr name attr_var_heap error
= (TA_Unique, attr_var_heap, error)
check_attribute (TA_Var var) root_attr name attr_var_heap error
= case root_attr of
TA_Var root_var
-> (TA_RootVar root_var, attr_var_heap, error)
TA_Unique
# (attr_info_ptr, attr_var_heap) = newPtr AVI_Empty attr_var_heap
-> (TA_Var { var & av_info_ptr = attr_info_ptr}, attr_var_heap, error)
// -> (PA_BUG (TA_RootVar (abort "SwitchUniquenessBug is on")) root_attr, error)
check_attribute attr root_attr name attr_var_heap error
= (TA_Multi, attr_var_heap, checkError name "specified attribute not allowed" error)
retrieveKinds :: ![ATypeVar] *TypeVarHeap -> (![TypeKind], !*TypeVarHeap)
retrieveKinds type_vars var_heap = mapSt retrieve_kind type_vars var_heap
......
frontend/parse.icl
View file @ 8024fd77
......@@ -2034,9 +2034,11 @@ optionalExistentialQuantifiedVariables pState
# (token, pState) = nextToken TypeContext pState
= case token of
ExistsToken
# (vars, pState) = wantList "existential quantified variable(s)" try_existential_type_var pState
# (vars, pState) = wantList "existential quantified variable(s)" tryQuantifiedTypeVar pState
-> (vars, wantToken TypeContext "Existential Quantified Variables" ColonToken pState)
_ -> ([], tokenBack pState)
/* Sjaak 041001
where
try_existential_type_var :: !ParseState -> (Bool,ATypeVar,ParseState)
try_existential_type_var pState
......@@ -2053,34 +2055,34 @@ where
# atypevar = {atv_attribute = TA_None, atv_annotation = AN_None, atv_variable = typevar}
-> (True,atypevar,pState)
-> (False,abort "no ATypeVar",pState)
// Sjaak 210801 ....
*/
// Sjaak 041001 ....
optionalUniversalQuantifiedVariables :: !*ParseState -> *(![ATypeVar],!*ParseState)
optionalUniversalQuantifiedVariables pState
# (token, pState) = nextToken TypeContext pState
= case token of
ForAllToken
# (vars, pState) = wantList "universal quantified variable(s)" try_universal_type_var pState
# (vars, pState) = wantList "universal quantified variable(s)" tryQuantifiedTypeVar pState
-> (vars, wantToken TypeContext "Universal Quantified Variables" ColonToken pState)
_ -> ([], tokenBack pState)
where
try_universal_type_var :: !ParseState -> (Bool, ATypeVar, ParseState)
try_universal_type_var pState
# (token, pState) = nextToken TypeContext pState
(succ, attr, pState) = try_universal_attribute token pState
| succ
# (typevar, pState) = wantTypeVar pState
(attr, pState) = adjustAttributeOfTypeVariable attr typevar.tv_name pState
= (True, {atv_attribute = attr, atv_annotation = AN_None, atv_variable = typevar}, pState)
# (succ, typevar, pState) = tryTypeVarT token pState
| succ
= (True, {atv_attribute = TA_None, atv_annotation = AN_None, atv_variable = typevar}, pState)
= (False, abort "no ATypeVar", pState)
try_universal_attribute DotToken pState = (True, TA_Anonymous, pState)
try_universal_attribute AsteriskToken pState = (True, TA_Unique, pState)
try_universal_attribute token pState = (False, TA_None, pState)
tryQuantifiedTypeVar :: !ParseState -> (Bool, ATypeVar, ParseState)
tryQuantifiedTypeVar pState
# (token, pState) = nextToken TypeContext pState
(succ, attr, pState) = try_attribute token pState
| succ
# (typevar, pState) = wantTypeVar pState
(attr, pState) = adjustAttributeOfTypeVariable attr typevar.tv_name pState
= (True, {atv_attribute = attr, atv_annotation = AN_None, atv_variable = typevar}, pState)
# (succ, typevar, pState) = tryTypeVarT token pState
| succ
= (True, {atv_attribute = TA_None, atv_annotation = AN_None, atv_variable = typevar}, pState)
= (False, abort "no ATypeVar", pState)
where
try_attribute DotToken pState = (True, TA_Anonymous, pState)
try_attribute AsteriskToken pState = (True, TA_Unique, pState)
try_attribute token pState = (False, TA_None, pState)
// ... Sjaak
......
frontend/type.icl
View file @ 8024fd77
......@@ -504,12 +504,8 @@ freshCopyOfAttributeVar {av_name,av_info_ptr} attr_var_heap
freshCopyOfTypeAttribute (TA_Var avar) attr_var_heap
= freshCopyOfAttributeVar avar attr_var_heap
/* A temporary hack to handle the new Object IO lib */
/* Should be removed !!!!!!!!!! */
freshCopyOfTypeAttribute (TA_RootVar avar) attr_var_heap
= PA_BUG (TA_PA_BUG, attr_var_heap) (freshCopyOfAttributeVar avar attr_var_heap)
= freshCopyOfAttributeVar avar attr_var_heap
freshCopyOfTypeAttribute TA_None attr_var_heap
= (TA_Multi, attr_var_heap)
freshCopyOfTypeAttribute TA_Unique attr_var_heap
......@@ -517,7 +513,6 @@ freshCopyOfTypeAttribute TA_Unique attr_var_heap
freshCopyOfTypeAttribute attr attr_var_heap
= (attr, attr_var_heap)
cIsExistential :== True
cIsNotExistential :== False
......@@ -582,12 +577,20 @@ where
freshCopy type type_heaps
= (type, type_heaps)
freshExistentialVariables type_variables state
= foldSt fresh_existential_variable type_variables state
freshExistentialVariables type_variables var_store attr_store type_heaps
= foldSt fresh_existential_variable type_variables ([], var_store, attr_store, type_heaps)
where
fresh_existential_variable {atv_variable={tv_info_ptr}} (var_heap, var_store)
= (var_heap <:= (tv_info_ptr, TVI_Type (TempQV var_store)), inc var_store)
fresh_existential_variable {atv_variable={tv_info_ptr},atv_attribute} (exi_attr_vars, var_store, attr_store, type_heaps =: {th_vars, th_attrs})
# th_vars = th_vars <:= (tv_info_ptr, TVI_Type (TempQV var_store))
# var_store = inc var_store
# (exi_attr_vars, attr_store, th_attrs) = fresh_existential_attribute atv_attribute (exi_attr_vars, attr_store, th_attrs)
= (exi_attr_vars, var_store, attr_store, { type_heaps & th_vars = th_vars, th_attrs = th_attrs })
fresh_existential_attribute (TA_Var {av_info_ptr}) (exi_attr_vars, attr_store, attr_heap)
= ([ attr_store : exi_attr_vars ], inc attr_store, attr_heap <:= (av_info_ptr, AVI_Attr (TA_TempVar attr_store)))
fresh_existential_attribute attr state
= state
fresh_type_variables :: [ATypeVar] *(*Heap TypeVarInfo,Int) -> *(!*Heap TypeVarInfo,!Int);
fresh_type_variables type_variables state
= foldSt (\{atv_variable={tv_info_ptr}} (var_heap, var_store) -> (var_heap <:= (tv_info_ptr, TVI_Type (TempV var_store)), inc var_store))
......@@ -622,21 +625,6 @@ fresh_environment inequalities attr_env attr_heap
is_new_ineqality dem_attr_var off_attr_var []
= True
fresh_symbol_types [{ap_symbol={glob_object}}] cons_defs var_store type_heaps
# {cons_type = {st_args,st_attr_env,st_result}, cons_index, cons_exi_vars} = cons_defs.[glob_object.ds_index]
(th_vars, var_store) = freshExistentialVariables cons_exi_vars (type_heaps.th_vars, var_store)
(attr_env, th_attrs) = fresh_environment st_attr_env [] type_heaps.th_attrs
(result_type, type_heaps) = freshCopy st_result { type_heaps & th_attrs = th_attrs, th_vars = th_vars }
(fresh_args, type_heaps) = freshCopy st_args type_heaps
= ([fresh_args], result_type, var_store, attr_env, type_heaps)
fresh_symbol_types [{ap_symbol={glob_object}} : patterns] cons_defs var_store type_heaps
# (cons_types, result_type, var_store, attr_env, type_heaps)
= fresh_symbol_types patterns cons_defs var_store type_heaps
{cons_type = {st_args,st_attr_env}, cons_index, cons_exi_vars} = cons_defs.[glob_object.ds_index]
(th_vars, var_store) = freshExistentialVariables cons_exi_vars (type_heaps.th_vars, var_store)
(attr_env, th_attrs) = fresh_environment st_attr_env attr_env type_heaps.th_attrs
(fresh_args, type_heaps) = freshCopy st_args { type_heaps & th_attrs = th_attrs, th_vars = th_vars }
= ([fresh_args : cons_types], result_type, var_store, attr_env, type_heaps)
freshUniversalVariables type_variables state
= foldSt fresh_universal_variable type_variables state
......@@ -645,15 +633,39 @@ where
= (var_heap <:= (tv_info_ptr, TVI_Type (TempQV var_store)), inc var_store)
freshAlgebraicType :: !(Global Int) ![AlgebraicPattern] !{#CommonDefs} !*TypeState -> (![[AType]],!AType,![AttrCoercion],!*TypeState)
freshAlgebraicType {glob_module, glob_object} patterns common_defs ts=:{ts_var_store,ts_attr_store,ts_type_heaps,ts_td_infos}
freshAlgebraicType {glob_module, glob_object} patterns common_defs ts=:{ts_var_store,ts_attr_store,ts_type_heaps,ts_td_infos,ts_exis_variables}
# {td_rhs,td_args,td_attrs,td_name,td_attribute} = common_defs.[glob_module].com_type_defs.[glob_object]
# (th_vars, ts_var_store) = fresh_type_variables td_args (ts_type_heaps.th_vars, ts_var_store)
(th_attrs, ts_attr_store) = fresh_attributes td_attrs (ts_type_heaps.th_attrs, ts_attr_store)
type_heaps = { ts_type_heaps & th_vars = th_vars, th_attrs = th_attrs }
(cons_types, alg_type, ts_var_store, attr_env, type_heaps)
= fresh_symbol_types patterns common_defs.[glob_module].com_cons_defs ts_var_store type_heaps
= (cons_types, alg_type, attr_env, { ts & ts_var_store = ts_var_store, ts_attr_store = ts_attr_store, ts_type_heaps = type_heaps })
ts_type_heaps = { ts_type_heaps & th_vars = th_vars, th_attrs = th_attrs }
(cons_types, alg_type, attr_env, ts_var_store, ts_attr_store, ts_type_heaps, ts_exis_variables)
= fresh_symbol_types patterns common_defs.[glob_module].com_cons_defs ts_var_store ts_attr_store ts_type_heaps ts_exis_variables
= (cons_types, alg_type, attr_env,
{ ts & ts_var_store = ts_var_store, ts_attr_store = ts_attr_store, ts_type_heaps = ts_type_heaps, ts_exis_variables = ts_exis_variables })
// ---> ("freshAlgebraicType", alg_type, cons_types)
where
fresh_symbol_types [{ap_symbol={glob_object},ap_expr}] cons_defs var_store attr_store type_heaps all_exis_variables
# {cons_type = {st_args,st_attr_env,st_result}, cons_index, cons_exi_vars} = cons_defs.[glob_object.ds_index]
(exis_variables, var_store, attr_store, type_heaps) = freshExistentialVariables cons_exi_vars var_store attr_store type_heaps
(attr_env, th_attrs) = fresh_environment st_attr_env [] type_heaps.th_attrs
(result_type, type_heaps) = freshCopy st_result { type_heaps & th_attrs = th_attrs }
(fresh_args, type_heaps) = freshCopy st_args type_heaps
all_exis_variables = add_exis_variables ap_expr exis_variables all_exis_variables
= ([fresh_args], result_type, attr_env, var_store, attr_store, type_heaps, all_exis_variables)
fresh_symbol_types [{ap_symbol={glob_object},ap_expr} : patterns] cons_defs var_store attr_store type_heaps all_exis_variables
# (cons_types, result_type, attr_env, var_store, attr_store, type_heaps, all_exis_variables)
= fresh_symbol_types patterns cons_defs var_store attr_store type_heaps all_exis_variables
{cons_type = {st_args,st_attr_env}, cons_index, cons_exi_vars} = cons_defs.[glob_object.ds_index]
(exis_variables, var_store, attr_store, type_heaps) = freshExistentialVariables cons_exi_vars var_store attr_store type_heaps
(attr_env, th_attrs) = fresh_environment st_attr_env attr_env type_heaps.th_attrs
(fresh_args, type_heaps) = freshCopy st_args { type_heaps & th_attrs = th_attrs }
all_exis_variables = add_exis_variables ap_expr exis_variables all_exis_variables
= ([fresh_args : cons_types], result_type, attr_env, var_store, attr_store, type_heaps, all_exis_variables)
add_exis_variables expr [] exis_variables
= exis_variables
add_exis_variables expr new_exis_variables exis_variables
= [(CP_Expression expr, new_exis_variables) : exis_variables]
fresh_overloaded_list_type [{ap_symbol}:patterns] pd_cons_symbol pd_nil_symbol decons_u_index nil_u_index stdStrictLists_index pos functions common_defs ts
| ap_symbol.glob_module==cPredefinedModuleIndex
......@@ -760,7 +772,7 @@ freshSymbolType is_appl fresh_context_vars st=:{st_vars,st_args,st_result,st_con
(fresh_type, type_heaps) = freshCopy type type_heaps
type_heaps = clearBindings vars type_heaps
= ({ at & at_attribute = fresh_attribute, at_type = fresh_type },
(var_store, attr_store, add_exis_variables pos new_exis_variables exis_variables, type_heaps))
(var_store, attr_store, addToExistentialVariables pos new_exis_variables exis_variables, type_heaps))
fresh_arg_type _ at (var_store, attr_store, exis_variables, type_heaps)
# (fresh_at, type_heaps) = freshCopy at type_heaps
= (fresh_at, (var_store, attr_store, exis_variables, type_heaps))
......@@ -774,10 +786,10 @@ freshSymbolType is_appl fresh_context_vars st=:{st_vars,st_args,st_result,st_con
fresh_attr attr state
= state
add_exis_variables pos [] exis_variables
= exis_variables
add_exis_variables pos new_exis_variables exis_variables
= [(pos, new_exis_variables) : exis_variables]
addToExistentialVariables pos [] exis_variables
= exis_variables
addToExistentialVariables pos new_exis_variables exis_variables
= [(pos, new_exis_variables) : exis_variables]
freshArgumentsOfSymbolType :: ![AType] !*TypeHeaps -> (![AType], !*TypeHeaps)
freshArgumentsOfSymbolType atypes type_heaps = mapSt fresh_arg_type atypes type_heaps
......@@ -1024,10 +1036,12 @@ determineSymbolTypeOfFunction pos ident act_arity st=:{st_args,st_result,st_attr
ts_var_heap = ts.ts_var_heap <:= (type_ptr, VI_PropagationType st) }
-> currySymbolType copy_symb_type act_arity ts
standardFieldSelectorType pos {glob_object={ds_ident,ds_index},glob_module} {ti_common_defs} ts=:{ts_var_store,ts_type_heaps}
#! {sd_type,sd_exi_vars} = ti_common_defs.[glob_module].com_selector_defs.[ds_index]
# (th_vars, ts_var_store) = freshExistentialVariables sd_exi_vars (ts_type_heaps.th_vars, ts_var_store)
= freshSymbolType (Yes pos) cWithFreshContextVars sd_type ti_common_defs { ts & ts_type_heaps = { ts_type_heaps & th_vars = th_vars }, ts_var_store = ts_var_store }
standardFieldSelectorType pos {glob_object={ds_ident,ds_index},glob_module} {ti_common_defs} ts=:{ts_var_store,ts_attr_store,ts_type_heaps,ts_exis_variables}
# {sd_type,sd_exi_vars} = ti_common_defs.[glob_module].com_selector_defs.[ds_index]
(new_exis_variables, ts_var_store, ts_attr_store, ts_type_heaps) = freshExistentialVariables sd_exi_vars ts_var_store ts_attr_store ts_type_heaps
ts_exis_variables = addToExistentialVariables pos new_exis_variables ts_exis_variables
ts = { ts & ts_type_heaps = ts_type_heaps, ts_var_store = ts_var_store, ts_attr_store = ts_attr_store, ts_exis_variables = ts_exis_variables }
= freshSymbolType (Yes pos) cWithFreshContextVars sd_type ti_common_defs ts
// ---> ("standardFieldSelectorType", ds_ident, inst)
standardTupleSelectorType pos {ds_index} arg_nr {ti_common_defs} ts
......@@ -1041,10 +1055,12 @@ standardRhsConstructorType pos index mod arity {ti_common_defs} ts
= currySymbolType fresh_type arity ts
// ---> ("standardRhsConstructorType", cons_symb, fresh_type)
standardLhsConstructorType index mod arity {ti_common_defs} ts=:{ts_var_store,ts_type_heaps}
#! {cons_symb, cons_type, cons_exi_vars } = ti_common_defs.[mod].com_cons_defs.[index]
# (th_vars, ts_var_store) = freshExistentialVariables cons_exi_vars (ts_type_heaps.th_vars, ts_var_store)
= freshSymbolType No cWithFreshContextVars cons_type ti_common_defs { ts & ts_type_heaps = { ts_type_heaps & th_vars = th_vars }, ts_var_store = ts_var_store }
standardLhsConstructorType pos index mod arity {ti_common_defs} ts=:{ts_var_store,ts_attr_store,ts_type_heaps,ts_exis_variables}
# {cons_symb, cons_type, cons_exi_vars } = ti_common_defs.[mod].com_cons_defs.[index]
(new_exis_variables, ts_var_store, ts_attr_store, ts_type_heaps) = freshExistentialVariables cons_exi_vars ts_var_store ts_attr_store ts_type_heaps
ts_exis_variables = addToExistentialVariables pos new_exis_variables ts_exis_variables
ts = { ts & ts_type_heaps = ts_type_heaps, ts_var_store = ts_var_store, ts_attr_store = ts_attr_store, ts_exis_variables = ts_exis_variables }
= freshSymbolType No cWithFreshContextVars cons_type ti_common_defs ts
// ---> ("standardLhsConstructorType", cons_symb, fresh_type)
:: ReferenceMarking :== Bool
......@@ -1464,8 +1480,9 @@ where
= (composite_expr_type, opt_composite_expr_ptr, (reqs, ts))
requirements ti (RecordUpdate {glob_module,glob_object={ds_index,ds_arity}} expression expressions) (reqs, ts)
# (lhs, ts) = standardLhsConstructorType ds_index glob_module ds_arity ti ts
(rhs, ts) = standardRhsConstructorType (CP_Expression expression) ds_index glob_module ds_arity ti ts
# cp = CP_Expression expression
(lhs, ts) = standardLhsConstructorType cp ds_index glob_module ds_arity ti ts
(rhs, ts) = standardRhsConstructorType cp ds_index glob_module ds_arity ti ts
(expression_type, opt_expr_ptr, reqs_ts) = requirements ti expression (reqs, ts)
(reqs, ts) = requirements_of_fields ti expression expressions rhs.tst_args lhs.tst_args reqs_ts
ts = { ts & ts_expr_heap = storeAttribute opt_expr_ptr lhs.tst_result.at_attribute ts.ts_expr_heap }
......@@ -1504,10 +1521,11 @@ where
requirements ti (MatchExpr opt_tuple_type {glob_object={ds_arity, ds_index},glob_module} expr) (reqs, ts)
# ({tst_result,tst_args,tst_attr_env}, ts) = standardLhsConstructorType ds_index glob_module ds_arity ti ts
# cp = CP_Expression expr
({tst_result,tst_args,tst_attr_env}, ts) = standardLhsConstructorType cp ds_index glob_module ds_arity ti ts
(e_type, opt_expr_ptr, (reqs, ts)) = requirements ti expr (reqs, ts)
reqs = { reqs & req_attr_coercions = tst_attr_env ++ reqs.req_attr_coercions,
req_type_coercions = [{ tc_demanded = tst_result, tc_offered = e_type, tc_position = CP_Expression expr, tc_coercible = True } : reqs.req_type_coercions ] }
req_type_coercions = [{ tc_demanded = tst_result, tc_offered = e_type, tc_position = cp, tc_coercible = True } : reqs.req_type_coercions ] }
ts = { ts & ts_expr_heap = storeAttribute opt_expr_ptr tst_result.at_attribute ts.ts_expr_heap }
= case opt_tuple_type of
Yes {glob_object={ds_ident,ds_index,ds_arity}, glob_module}
......
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