implementation module overloading
import StdEnv
import syntax, check, type, typesupport, utilities, unitype, predef, checktypes, convertDynamics // ,RWSDebug
:: InstanceTree = IT_Node !(Global Index) !InstanceTree !InstanceTree | IT_Empty
:: ClassInstanceInfo :== {# {! .InstanceTree}}
:: ReducedContext =
{ rc_class :: !Global DefinedSymbol
, rc_types :: ![Type]
, rc_inst_module :: !Index
, rc_inst_members :: !{# DefinedSymbol}
, rc_red_contexts :: ![ClassApplication]
}
:: ReducedContexts =
{ rcs_class_context :: !ReducedContext
, rcs_constraints_contexts :: ![ReducedContexts]
}
:: TypeCodeInstance =
{ tci_index :: !Index
, tci_contexts :: ![ClassApplication]
}
:: ClassApplication = CA_Instance !ReducedContexts
| CA_Context !TypeContext
| CA_LocalTypeCode !VarInfoPtr /* for (local) type pattern variables */
| CA_GlobalTypeCode !TypeCodeInstance /* for (global) type constructors */
:: ArrayInstance =
{ ai_record :: !TypeSymbIdent
, ai_members :: !{# DefinedSymbol}
}
:: GlobalTCInstance =
{ gtci_type :: !GlobalTCType
, gtci_index :: !Index
}
:: SpecialInstances =
{ si_next_array_member_index :: !Index
, si_array_instances :: ![ArrayInstance]
, si_next_TC_member_index :: !Index
, si_TC_instances :: ![GlobalTCInstance]
}
:: LocalTypePatternVariable =
{ ltpv_var :: !Int
, ltpv_new_var :: !VarInfoPtr
}
:: OverloadingState =
{ os_type_heaps :: !.TypeHeaps
, os_var_heap :: !.VarHeap
, os_symbol_heap :: !.ExpressionHeap
, os_predef_symbols :: !.PredefinedSymbols
, os_special_instances :: !.SpecialInstances
, os_error :: !.ErrorAdmin
}
instance =< TypeSymbIdent
where
(=<) {type_index={glob_module=mod1,glob_object=index1}} {type_index={glob_module=mod2,glob_object=index2}}
# cmp = mod1 =< mod2
| cmp == Equal
= index1 =< index2
= cmp
instance =< GlobalTCType
where
(=<) globtype1 globtype2
| equal_constructor globtype1 globtype2
= compare_types globtype1 globtype2
| less_constructor globtype1 globtype2
= Smaller
= Greater
where
compare_types (GTT_Basic bt1) (GTT_Basic bt2)
= bt1 =< bt2
compare_types (GTT_Constructor cons1) (GTT_Constructor cons2)
= cons1 =< cons2
compare_types _ _
= Equal
instanceError symbol types err
# err = errorHeading "Overloading error" err
format = { form_properties = cNoProperties, form_attr_position = No }
= { err & ea_file = err.ea_file <<< " \"" <<< symbol <<< "\" no instance available of type "
<:: (format, types, Yes initialTypeVarBeautifulizer) <<< '\n' }
uniqueError symbol types err
# err = errorHeading "Overloading/Uniqueness error" err
format = { form_properties = cAnnotated, form_attr_position = No }
= { err & ea_file = err.ea_file <<< " \"" <<< symbol
<<< "\" uniqueness specification of instance conflicts with current application "
<:: (format, types, Yes initialTypeVarBeautifulizer) <<< '\n'}
unboxError type err
# err = errorHeading "Overloading error of Array class" err
format = { form_properties = cNoProperties, form_attr_position = No }
= { err & ea_file = err.ea_file <<< ' ' <:: (format, type, Yes initialTypeVarBeautifulizer) <<< " instance cannot be unboxed\n"}
overloadingError op_symb err
# err = errorHeading "Overloading error" err
str = case optBeautifulizeIdent op_symb.id_name of
No
-> op_symb.id_name
Yes (str, line_nr)
-> str+++" [line "+++toString line_nr+++"]"
= { err & ea_file = err.ea_file <<< " internal overloading of \"" <<< str <<< "\" could not be solved\n" }
/*
As soon as all overloaded variables in an type context are instantiated, context reduction is carried out.
This reduction yields a type class instance (here represented by a an index) and a list of
ClassApplications.
*/
containsContext :: !TypeContext ![TypeContext] -> Bool
containsContext new_tc []
= False
containsContext new_tc [tc : tcs]
= new_tc == tc || containsContext new_tc tcs
FoundObject object :== object.glob_module <> NotFound
ObjectNotFound :== { glob_module = NotFound, glob_object = NotFound }
reduceContexts :: ![TypeContext] !Int !{# CommonDefs} !ClassInstanceInfo ![TypeContext] !*SpecialInstances ![LocalTypePatternVariable]
!(!*VarHeap, !*TypeHeaps) !*Coercions !*PredefinedSymbols !*ErrorAdmin
-> *(![ClassApplication], ![TypeContext], !*SpecialInstances, ![LocalTypePatternVariable],
!(!*VarHeap, !*TypeHeaps), !*Coercions, !*PredefinedSymbols, !*ErrorAdmin)
reduceContexts [] main_dcl_module_n defs instance_info new_contexts special_instances type_pattern_vars heaps coercion_env predef_symbols error
= ([], new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
reduceContexts [tc : tcs] main_dcl_module_n defs instance_info new_contexts special_instances type_pattern_vars heaps coercion_env predef_symbols error
# (appl, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= try_to_reduce_context tc defs instance_info new_contexts special_instances type_pattern_vars heaps coercion_env predef_symbols error
(appls, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= reduceContexts tcs main_dcl_module_n defs instance_info new_contexts special_instances type_pattern_vars heaps coercion_env predef_symbols error
= ([appl : appls], new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
where
try_to_reduce_context :: !TypeContext !{# CommonDefs} !ClassInstanceInfo ![TypeContext] !*SpecialInstances ![LocalTypePatternVariable]
!(!*VarHeap, !*TypeHeaps) !*Coercions !*PredefinedSymbols !*ErrorAdmin
-> *(!ClassApplication, ![TypeContext], !*SpecialInstances, ![LocalTypePatternVariable], !(!*VarHeap, !*TypeHeaps), !*Coercions, !*PredefinedSymbols, !*ErrorAdmin)
try_to_reduce_context tc=:{tc_class=class_symb=:{glob_object={ds_index},glob_module},tc_types} defs instance_info new_contexts
special_instances type_pattern_vars (var_heap, type_heaps) coercion_env predef_symbols error
| context_is_reducible tc predef_symbols
| is_predefined_symbol glob_module ds_index PD_TypeCodeClass predef_symbols
# (red_context, (new_contexts, special_instances, type_pattern_vars, var_heap))
= reduce_TC_context class_symb (hd tc_types) new_contexts special_instances type_pattern_vars var_heap
= (red_context, new_contexts, special_instances, type_pattern_vars, (var_heap, type_heaps), coercion_env, predef_symbols, error)
# (class_appls, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= reduce_context tc defs instance_info new_contexts special_instances type_pattern_vars
(var_heap, type_heaps) coercion_env predef_symbols error
= (CA_Instance class_appls, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
| containsContext tc new_contexts
= (CA_Context tc, new_contexts, special_instances, type_pattern_vars, (var_heap, type_heaps), coercion_env, predef_symbols, error)
# (tc_var, var_heap) = newPtr VI_Empty var_heap
= (CA_Context tc, [{ tc & tc_var = tc_var } : new_contexts], special_instances,
type_pattern_vars, (var_heap, type_heaps), coercion_env, predef_symbols, error)
reduce_context {tc_class=class_symb=:{glob_object={ds_index},glob_module},tc_types} defs
instance_info new_contexts special_instances type_pattern_vars heaps coercion_env predef_symbols error
# {class_members,class_context,class_args,class_name} = defs.[glob_module].com_class_defs.[ds_index]
| size class_members > 0
# class_instances = instance_info.[glob_module].[ds_index]
# ({glob_module,glob_object}, contexts, uni_ok, (var_heap, type_heaps), coercion_env) = find_instance tc_types class_instances defs heaps coercion_env
| (glob_module <> NotFound) && uni_ok
# {ins_members, ins_class} = defs.[glob_module].com_instance_defs.[glob_object]
| is_predefined_symbol ins_class.glob_module ins_class.glob_object.ds_index PD_ArrayClass predef_symbols &&
is_unboxed_array tc_types predef_symbols
# (rcs_class_context, special_instances, (predef_symbols, type_heaps), error)
= check_unboxed_type glob_module ins_class ins_members tc_types class_members defs special_instances (predef_symbols, type_heaps) error
= ({ rcs_class_context = rcs_class_context, rcs_constraints_contexts = []}, new_contexts,
special_instances, type_pattern_vars, (var_heap, type_heaps), coercion_env, predef_symbols, error)
# (appls, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= reduceContexts contexts main_dcl_module_n defs instance_info new_contexts special_instances type_pattern_vars (var_heap, type_heaps) coercion_env predef_symbols error
(constraints, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= reduce_contexts_in_constraints tc_types class_args class_context defs instance_info new_contexts special_instances type_pattern_vars
heaps coercion_env predef_symbols error
= ({ rcs_class_context = { rc_class = ins_class, rc_inst_module = glob_module, rc_inst_members = ins_members,
rc_types = tc_types, rc_red_contexts = appls }, rcs_constraints_contexts = constraints }, new_contexts,
special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
# rcs_class_context = { rc_class = class_symb, rc_inst_module = NoIndex, rc_inst_members = {}, rc_types = tc_types, rc_red_contexts = [] }
| glob_module <> NotFound
= ({ rcs_class_context = rcs_class_context, rcs_constraints_contexts = []}, new_contexts,
special_instances, type_pattern_vars, (var_heap, type_heaps), coercion_env, predef_symbols, uniqueError class_name tc_types error)
= ({ rcs_class_context = rcs_class_context, rcs_constraints_contexts = []}, new_contexts,
special_instances, type_pattern_vars, (var_heap, type_heaps), coercion_env, predef_symbols, instanceError class_name tc_types error)
# (constraints, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= reduce_contexts_in_constraints tc_types class_args class_context defs instance_info new_contexts special_instances type_pattern_vars
heaps coercion_env predef_symbols error
= ({ rcs_class_context = { rc_class = class_symb, rc_inst_module = NoIndex, rc_inst_members = {}, rc_types = tc_types, rc_red_contexts = [] },
rcs_constraints_contexts = constraints }, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
reduce_contexts_in_constraints types class_args [] defs instance_info new_contexts special_instances type_pattern_vars heaps coercion_env predef_symbols error
= ([], new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
reduce_contexts_in_constraints types class_args class_context defs instance_info new_contexts special_instances type_pattern_vars
(var_heap, type_heaps=:{th_vars}) coercion_env predef_symbols error
# th_vars = fold2St (\ type {tv_info_ptr} -> writePtr tv_info_ptr (TVI_Type type)) types class_args th_vars
(instantiated_context, heaps) = fresh_contexts class_context (var_heap, { type_heaps & th_vars = th_vars })
# (cappls, (new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error))
= mapSt (reduce_context_in_constraint defs instance_info) instantiated_context
(new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= (cappls, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
where
reduce_context_in_constraint defs instance_info tc (new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
# (cappls, new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error)
= reduce_context tc defs instance_info new_contexts special_instances type_pattern_vars heaps coercion_env predef_symbols error
= (cappls, (new_contexts, special_instances, type_pattern_vars, heaps, coercion_env, predef_symbols, error))
find_instance co_types (IT_Node this_inst_index=:{glob_object,glob_module} left right) defs heaps coercion_env
# (left_index, types, uni_ok, (var_heap, type_heaps), coercion_env) = find_instance co_types left defs heaps coercion_env
| FoundObject left_index
= (left_index, types, uni_ok, (var_heap, type_heaps), coercion_env)
# {ins_type={it_types,it_context}, ins_specials} = defs.[glob_module].com_instance_defs.[glob_object]
(matched, type_heaps) = match defs it_types co_types type_heaps
| matched
# (subst_context, (var_heap, type_heaps)) = fresh_contexts it_context (var_heap, type_heaps)
(uni_ok, coercion_env, type_heaps) = adjust_type_attributes defs co_types it_types coercion_env type_heaps
(spec_inst, type_heaps) = trySpecializedInstances subst_context (get_specials ins_specials) type_heaps
| FoundObject spec_inst
= (spec_inst, [], uni_ok, (var_heap, type_heaps), coercion_env)
= (this_inst_index, subst_context, uni_ok, (var_heap, type_heaps), coercion_env)
= find_instance co_types right defs (var_heap, type_heaps) coercion_env
find_instance co_types IT_Empty defs heaps coercion_env
= (ObjectNotFound, [], True, heaps, coercion_env)
get_specials (SP_ContextTypes specials) = specials
get_specials SP_None = []
adjust_type_attributes defs act_types form_types coercion_env type_heaps
= fold2St (adjust_type_attribute defs) act_types form_types (True, coercion_env, type_heaps)
adjust_type_attribute _ _ (TV _) state
= state
adjust_type_attribute defs (TA type_cons1 cons_args1) (TA type_cons2 cons_args2) (ok, coercion_env, type_heaps)
| type_cons1 == type_cons2
= adjust_attributes_and_subtypes defs cons_args1 cons_args2 (ok, coercion_env, type_heaps)
# (_, type1, type_heaps) = tryToExpandTypeSyn defs type_cons1 cons_args1 type_heaps
(_, type2, type_heaps) = tryToExpandTypeSyn defs type_cons2 cons_args2 type_heaps
= adjust_type_attribute defs type1 type2 (ok, coercion_env, type_heaps)
adjust_type_attribute defs (arg_type1 --> res_type1) (arg_type2 --> res_type2) state
= adjust_attributes_and_subtypes defs [arg_type1, res_type1] [arg_type2, res_type2] state
adjust_type_attribute defs (_ :@: types1) (_ :@: types2) state
= adjust_attributes_and_subtypes defs types1 types2 state
adjust_type_attribute _ (TA type_cons1 cons_args1) type2 (ok, coercion_env, type_heaps)
# (expanded, type1, type_heaps) = tryToExpandTypeSyn defs type_cons1 cons_args1 type_heaps
| expanded
= adjust_type_attribute defs type1 type2 (ok, coercion_env, type_heaps)
= (ok, coercion_env, type_heaps)
adjust_type_attribute _ type1 (TA type_cons2 cons_args2) (ok, coercion_env, type_heaps)
# (expanded, type2, type_heaps) = tryToExpandTypeSyn defs type_cons2 cons_args2 type_heaps
| expanded
= adjust_type_attribute defs type1 type2 (ok, coercion_env, type_heaps)
= (ok, coercion_env, type_heaps)
adjust_type_attribute _ _ _ state
= state
adjust_attributes_and_subtypes defs types1 types2 state
= fold2St (adjust_attribute_and_subtypes defs) types1 types2 state
adjust_attribute_and_subtypes defs atype1 atype2 (ok, coercion_env, type_heaps)
# (ok, coercion_env) = adjust_attribute atype1.at_attribute atype2.at_attribute (ok, coercion_env)
= adjust_type_attribute defs atype1.at_type atype2.at_type (ok, coercion_env, type_heaps)
where
adjust_attribute attr1 (TA_Var _) state
= state
adjust_attribute attr1 TA_Unique (ok, coercion_env)
= case attr1 of
TA_Unique
-> (ok, coercion_env)
TA_TempVar av_number
# (succ, coercion_env) = tryToMakeUnique av_number coercion_env
-> (ok && succ, coercion_env)
_
-> (False, coercion_env)
adjust_attribute attr1 attr (ok, coercion_env)
= case attr1 of
TA_Multi
-> (ok, coercion_env)
TA_TempVar av_number
# (succ, coercion_env) = tryToMakeNonUnique av_number coercion_env
-> (ok && succ, coercion_env)
_
-> (False, coercion_env)
context_is_reducible {tc_class,tc_types = [type : types]} predef_symbols
// = type_is_reducible type && is_reducible types
= type_is_reducible type && types_are_reducible types type tc_class predef_symbols
type_is_reducible (TempV _)
= False
type_is_reducible (_ :@: _)
= False
type_is_reducible _
= True
types_are_reducible [] _ _ _
= True
types_are_reducible [type : types] first_type tc_class predef_symbols
= case type of
TempV _
-> is_predefined_symbol tc_class.glob_module tc_class.glob_object.ds_index PD_ArrayClass predef_symbols &&
is_lazy_or_strict_array_type first_type predef_symbols
_ :@: _
-> False
_
-> is_reducible types
where
is_lazy_or_strict_array_type (TA {type_index} _) predef_symbols
= is_predefined_symbol type_index.glob_module type_index.glob_object PD_LazyArrayType predef_symbols ||
is_predefined_symbol type_index.glob_module type_index.glob_object PD_StrictArrayType predef_symbols
is_lazy_or_strict_array_type _ _
= False
is_reducible []
= True
is_reducible [ type : types]
= type_is_reducible type && is_reducible types
fresh_contexts contexts heaps
= mapSt fresh_context contexts heaps
where
fresh_context tc=:{tc_types} (var_heap, 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))
is_predefined_symbol mod_index symb_index predef_index predef_symbols
# {pds_def,pds_module,pds_ident} = predef_symbols.[predef_index]
= (mod_index == pds_module && symb_index == pds_def)
is_unboxed_array [TA {type_index={glob_module,glob_object},type_arity} _ : _] predef_symbols
= is_predefined_symbol glob_module glob_object PD_UnboxedArrayType predef_symbols
is_unboxed_array _ predef_symbols
= False
check_unboxed_type ins_module ins_class ins_members types=:[ _, elem_type :_] class_members defs special_instances predef_symbols_type_heaps error
# (unboxable, opt_record, predef_symbols_type_heaps) = try_to_unbox elem_type defs predef_symbols_type_heaps
| unboxable
= case opt_record of
Yes record
# (ins_members, special_instances) = add_record_to_array_instances record class_members special_instances
// -> ({ rc_class = ins_class, rc_inst_module = cIclModIndex, rc_inst_members = ins_members, rc_red_contexts = [], rc_types = types },
-> ({ rc_class = ins_class, rc_inst_module = main_dcl_module_n, rc_inst_members = ins_members, rc_red_contexts = [], rc_types = types },
special_instances, predef_symbols_type_heaps, error)
No
-> ({ rc_class = ins_class, rc_inst_module = ins_module, rc_inst_members = ins_members, rc_red_contexts = [], rc_types = types },
special_instances, predef_symbols_type_heaps, error)
= ({ rc_class = ins_class, rc_inst_module = ins_module, rc_inst_members = ins_members, rc_red_contexts = [], rc_types = types },
special_instances, predef_symbols_type_heaps, unboxError elem_type error)
where
try_to_unbox (TB _) _ predef_symbols_type_heaps
= (True, No, predef_symbols_type_heaps)
try_to_unbox (TA type_symb=:{type_index={glob_module,glob_object},type_arity} type_args) defs (predef_symbols, type_heaps)
# {td_arity,td_rhs,td_args,td_attribute} = defs.[glob_module].com_type_defs.[glob_object]
= case td_rhs of
RecordType _
-> (True, (Yes type_symb), (predef_symbols, type_heaps))
AbstractType _
#! unboxable =
is_predefined_symbol glob_module glob_object PD_LazyArrayType predef_symbols ||
is_predefined_symbol glob_module glob_object PD_StrictArrayType predef_symbols ||
is_predefined_symbol glob_module glob_object PD_UnboxedArrayType predef_symbols
-> (unboxable, No, (predef_symbols, type_heaps))
SynType {at_type}
# (expanded_type, type_heaps) = expandTypeSyn td_attribute td_args type_args at_type type_heaps
-> try_to_unbox expanded_type defs (predef_symbols, type_heaps)
_
-> (False, No, (predef_symbols, type_heaps))
try_to_unbox type _ predef_symbols_type_heaps
= (True, No, predef_symbols_type_heaps)
add_record_to_array_instances :: !TypeSymbIdent !{# DefinedSymbol} !*SpecialInstances -> (!{#DefinedSymbol},!*SpecialInstances)
add_record_to_array_instances record members special_instances=:{si_next_array_member_index,si_array_instances}
# may_be_there = look_up_array_instance record si_array_instances
= case may_be_there of
Yes inst
-> (inst.ai_members, special_instances)
No
# inst = new_array_instance record members si_next_array_member_index
-> (inst.ai_members, { special_instances & si_next_array_member_index = si_next_array_member_index + size members,
si_array_instances = [ inst : si_array_instances ] })
where
look_up_array_instance :: !TypeSymbIdent ![ArrayInstance] -> Optional ArrayInstance
look_up_array_instance record []
= No
look_up_array_instance record [inst : insts]
| record == inst.ai_record
= Yes inst
= look_up_array_instance record insts
new_array_instance :: !TypeSymbIdent !{# DefinedSymbol} !Index -> ArrayInstance
new_array_instance record members next_member_index
= { ai_members = { { class_member & ds_index = next_inst_index } \\ class_member <-: members & next_inst_index <- [next_member_index .. ]},
ai_record = record }
reduce_TC_context type_code_class tc_type new_contexts special_instances type_pattern_vars var_heap
= reduce_tc_context type_code_class tc_type (new_contexts, special_instances, type_pattern_vars, var_heap)
where
reduce_tc_context type_code_class (TA cons_id cons_args) (new_contexts, special_instances=:{si_next_TC_member_index, si_TC_instances}, type_pattern_vars, var_heap)
# (inst_index, (si_next_TC_member_index, si_TC_instances))
= addGlobalTCInstance (GTT_Constructor cons_id) (si_next_TC_member_index, si_TC_instances)
(rc_red_contexts, instances) = reduce_TC_contexts type_code_class cons_args
(new_contexts, { special_instances & si_next_TC_member_index = si_next_TC_member_index, si_TC_instances = si_TC_instances }, type_pattern_vars, var_heap)
= (CA_GlobalTypeCode { tci_index = inst_index, tci_contexts = rc_red_contexts }, instances)
reduce_tc_context type_code_class (TB basic_type) (new_contexts, special_instances=:{si_next_TC_member_index, si_TC_instances}, type_pattern_vars, var_heap)
# (inst_index, (si_next_TC_member_index, si_TC_instances))
= addGlobalTCInstance (GTT_Basic basic_type) (si_next_TC_member_index, si_TC_instances)
= (CA_GlobalTypeCode { tci_index = inst_index, tci_contexts = [] },
(new_contexts, { special_instances & si_next_TC_member_index = si_next_TC_member_index, si_TC_instances = si_TC_instances }, type_pattern_vars, var_heap))
reduce_tc_context type_code_class (arg_type --> result_type) (new_contexts, special_instances=:{si_next_TC_member_index, si_TC_instances}, type_pattern_vars, var_heap)
# (inst_index, (si_next_TC_member_index, si_TC_instances))
= addGlobalTCInstance GTT_Function (si_next_TC_member_index, si_TC_instances)
(rc_red_contexts, instances) = reduce_TC_contexts type_code_class [arg_type, result_type]
(new_contexts, { special_instances & si_next_TC_member_index = si_next_TC_member_index, si_TC_instances = si_TC_instances }, type_pattern_vars, var_heap)
= (CA_GlobalTypeCode { tci_index = inst_index, tci_contexts = rc_red_contexts }, instances)
reduce_tc_context type_code_class (TempQV var_number) (new_contexts, special_instances, type_pattern_vars, var_heap)
# (inst_var, (type_pattern_vars, var_heap)) = addLocalTCInstance var_number (type_pattern_vars, var_heap)
= (CA_LocalTypeCode inst_var, (new_contexts, special_instances, type_pattern_vars, var_heap))
reduce_tc_context type_code_class (TempV var_number) (new_contexts, special_instances, type_pattern_vars, var_heap)
# (tc_var, var_heap) = newPtr VI_Empty var_heap
tc = { tc_class = type_code_class, tc_types = [TempV var_number], tc_var = tc_var }
| containsContext tc new_contexts
= (CA_Context tc, (new_contexts, special_instances, type_pattern_vars, var_heap))
= (CA_Context tc, ([tc : new_contexts], special_instances, type_pattern_vars, var_heap))
reduce_TC_contexts type_code_class cons_args instances
= mapSt (\{at_type} -> reduce_tc_context type_code_class at_type) cons_args instances
addLocalTCInstance var_number (instances=:[inst : insts], ltp_var_heap)
# cmp = var_number =< inst.ltpv_var
| cmp == Equal
= (inst.ltpv_new_var, (instances, ltp_var_heap))
| cmp == Smaller
# (ltpv_new_var, ltp_var_heap) = newPtr VI_Empty ltp_var_heap
= (ltpv_new_var, ( [{ ltpv_new_var = ltpv_new_var, ltpv_var = var_number } : instances ], ltp_var_heap ))
# (found_var, (insts, ltp_var_heap)) = addLocalTCInstance var_number (insts, ltp_var_heap)
= (found_var, ([inst : insts ], ltp_var_heap))
addLocalTCInstance var_number ([], ltp_var_heap)
# (ltpv_new_var, ltp_var_heap) = newPtr VI_Empty ltp_var_heap
= (ltpv_new_var, ([{ ltpv_new_var = ltpv_new_var, ltpv_var = var_number }], ltp_var_heap))
addGlobalTCInstance type_of_TC (next_member_index, instances=:[inst : insts])
# cmp = type_of_TC =< inst.gtci_type
| cmp == Equal
= (inst.gtci_index, (next_member_index, instances))
| cmp == Smaller
= (next_member_index, (inc next_member_index, [{ gtci_index = next_member_index, gtci_type = type_of_TC } : instances ]))
# (found_inst, (next_member_index, insts)) = addGlobalTCInstance type_of_TC (next_member_index, insts)
= (found_inst, (next_member_index, [inst : insts]))
addGlobalTCInstance type_of_TC (next_member_index, [])
= (next_member_index, (inc next_member_index, [{ gtci_index = next_member_index, gtci_type = type_of_TC }]))
tryToExpandTypeSyn defs cons_id=:{type_name,type_index={glob_object,glob_module}} type_args type_heaps
# {td_name,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) = expandTypeSyn td_attribute td_args type_args at_type type_heaps
-> (True, expanded_type, type_heaps)
_
-> (False, TA cons_id type_args, type_heaps)
expandTypeSyn td_attribute td_args type_args td_rhs type_heaps
# type_heaps = bindTypeVarsAndAttributes td_attribute TA_Multi td_args type_args type_heaps
(expanded_type, type_heaps) = substitute td_rhs type_heaps
= (expanded_type, clearBindingsOfTypeVarsAndAttributes td_attribute td_args type_heaps)
class match type :: !{# CommonDefs} !type !type !*TypeHeaps -> (!Bool, !*TypeHeaps)
instance match AType
where
match defs atype1 atype2 type_heaps = match defs atype1.at_type atype2.at_type type_heaps
instance match Type
where
match defs (TV {tv_info_ptr}) type type_heaps=:{th_vars}
= (True, { type_heaps & th_vars = th_vars <:= (tv_info_ptr,TVI_Type type)})
match defs (TA cons_id1 cons_args1) (TA cons_id2 cons_args2) type_heaps
| cons_id1 == cons_id2
= match defs cons_args1 cons_args2 type_heaps
// # (succ1, type1, type_heaps) = tryToExpandTypeSyn defs cons_id1 cons_args1 type_heaps
# (succ2, type2, type_heaps) = tryToExpandTypeSyn defs cons_id2 cons_args2 type_heaps
| succ2
= case type2 of
TA cons_id2 cons_args2
| cons_id1 == cons_id2
-> match defs cons_args1 cons_args2 type_heaps
-> (False, type_heaps)
_
-> (False, type_heaps)
= (False, type_heaps)
match defs (arg_type1 --> res_type1) (arg_type2 --> res_type2) type_heaps
= match defs (arg_type1,res_type1) (arg_type2,res_type2) type_heaps
match defs (type1 :@: types1) (type2 :@: types2) type_heaps
= match defs (type1,types1) (type2,types2) type_heaps
match defs (CV tv :@: types) (TA type_cons cons_args) type_heaps
# diff = type_cons.type_arity - length types
| diff >= 0
= match defs (TV tv, types) (TA { type_cons & type_arity = diff } (take diff cons_args), drop diff cons_args) type_heaps
= (False, type_heaps)
match defs (TB tb1) (TB tb2) type_heaps
= (tb1 == tb2, type_heaps)
/* match defs type (TB (BT_String array_type)) type_heaps
= match defs type array_type type_heaps
*/ match defs (TA cons_id cons_args) type2 type_heaps
# (succ, type1, type_heaps) = tryToExpandTypeSyn defs cons_id cons_args type_heaps
| succ
= match defs type1 type2 type_heaps
= (False, type_heaps)
match defs type1 (TA cons_id cons_args) type_heaps
# (succ, type2, type_heaps) = tryToExpandTypeSyn defs cons_id cons_args type_heaps
| succ
= match defs type1 type2 type_heaps
= (False, type_heaps)
match defs type1 type2 type_heaps
= (False, type_heaps)
instance match (!a,!b) | match a & match b
where
match defs (x1,y1) (x2,y2) type_heaps
# (matched, type_heaps) = match defs x1 x2 type_heaps
| matched
= match defs y1 y2 type_heaps
= (False, type_heaps)
instance match [a] | match a
where
match defs [t1 : ts1] [t2 : ts2] type_heaps
= match defs (t1,ts1) (t2,ts2) type_heaps
match defs [] [] type_heaps
= (True, type_heaps)
instance match ConsVariable
where
match defs (CV {tv_info_ptr}) cons_var type_heaps=:{th_vars}
= (True, { type_heaps & th_vars = th_vars <:= (tv_info_ptr,TVI_Type (consVariableToType cons_var))})
consVariableToType (TempCV temp_var_id)
= TempV temp_var_id
consVariableToType (TempQCV temp_var_id)
= TempQV temp_var_id
trySpecializedInstances type_contexts [] type_heaps
= (ObjectNotFound, type_heaps)
trySpecializedInstances type_contexts specials type_heaps=:{th_vars}
# (spec_index, th_vars) = try_specialized_instances (map (\{tc_types} -> tc_types) type_contexts) specials th_vars
= (spec_index, { type_heaps & th_vars = th_vars })
where
try_specialized_instances type_contexts_types [{spec_index,spec_vars,spec_types} : specials] type_var_heap
# type_var_heap = foldSt (\tv -> writePtr tv.tv_info_ptr TVI_Empty) spec_vars type_var_heap
(equ, type_var_heap) = equalTypes spec_types type_contexts_types type_var_heap
| equ
= (spec_index, type_var_heap)
= try_specialized_instances type_contexts_types specials type_var_heap
try_specialized_instances type_contexts_types [] type_var_heap
= (ObjectNotFound, type_var_heap)
:: DictionaryTypes :== [(Index, [ExprInfoPtr])]
tryToSolveOverloading :: ![(Optional [TypeContext], [ExprInfoPtr], IdentPos, Index)] !Int !{# CommonDefs } !ClassInstanceInfo !*Coercions !*OverloadingState
-> (![TypeContext], !*Coercions, ![LocalTypePatternVariable], DictionaryTypes, !*OverloadingState)
tryToSolveOverloading ocs main_dcl_module_n defs instance_info coercion_env os
# (reduced_contexts, contexts, coercion_env, type_pattern_vars, os) = foldSt (reduce_contexts defs instance_info) ocs ([], [], coercion_env, [], os)
| os.os_error.ea_ok
# (contexts, os_var_heap) = foldSt add_spec_contexts ocs (contexts, os.os_var_heap)
(contexts, os_type_heaps) = remove_sub_classes contexts os.os_type_heaps
({ hp_var_heap, hp_expression_heap, hp_type_heaps}, dict_types) = foldSt (convert_dictionaries defs contexts) reduced_contexts
({ hp_var_heap = os_var_heap, hp_expression_heap = os.os_symbol_heap, hp_type_heaps = os_type_heaps}, [])
= (contexts, coercion_env, type_pattern_vars, dict_types, { os & os_type_heaps = hp_type_heaps, os_symbol_heap = hp_expression_heap, os_var_heap = hp_var_heap} )
= ([], coercion_env, type_pattern_vars, [], os)
where
reduce_contexts defs instance_info (opt_spec_contexts, expr_ptrs, pos, index) rc_state
= foldSt (reduce_contexts_of_application index defs instance_info) expr_ptrs rc_state
add_spec_contexts (Yes spec_context, expr_ptrs, pos, index) contexts_and_var_heap
= foldSt add_spec_context spec_context contexts_and_var_heap
where
add_spec_context tc (contexts, var_heap)
| containsContext tc contexts
= (contexts, var_heap)
# (tc_var, var_heap) = newPtr VI_Empty var_heap
= ([{ tc & tc_var = tc_var } : contexts], var_heap)
add_spec_contexts (No, expr_ptrs, pos, index) contexts_and_var_heap
= contexts_and_var_heap
reduce_contexts_of_application :: !Index !{# CommonDefs } !ClassInstanceInfo !ExprInfoPtr
([(SymbIdent, Index, ExprInfoPtr,[ClassApplication])], ![TypeContext], !*Coercions, ![LocalTypePatternVariable], !*OverloadingState)
-> ([(SymbIdent, Index, ExprInfoPtr,[ClassApplication])], ![TypeContext], !*Coercions, ![LocalTypePatternVariable], !*OverloadingState)
reduce_contexts_of_application fun_index defs instance_info over_info_ptr (reduced_calls, new_contexts, coercion_env, type_pattern_vars,
os=:{os_symbol_heap,os_type_heaps,os_var_heap,os_special_instances,os_error,os_predef_symbols})
# (EI_Overloaded {oc_symbol, oc_context, oc_specials}, os_symbol_heap) = readPtr over_info_ptr os_symbol_heap
(glob_fun, os_type_heaps) = trySpecializedInstances oc_context oc_specials os_type_heaps
| FoundObject glob_fun
# os_symbol_heap = os_symbol_heap <:= (over_info_ptr, EI_Instance {glob_module = glob_fun.glob_module, glob_object =
{ ds_ident = oc_symbol.symb_name, ds_arity = 0, ds_index = glob_fun.glob_object }} [])
= (reduced_calls, new_contexts, coercion_env, type_pattern_vars, { os & os_type_heaps = os_type_heaps, os_symbol_heap = os_symbol_heap })
| otherwise
# (class_applications, new_contexts, os_special_instances, type_pattern_vars,
(os_var_heap, os_type_heaps), coercion_env, os_predef_symbols, os_error)
= reduceContexts oc_context main_dcl_module_n defs instance_info new_contexts os_special_instances type_pattern_vars
(os_var_heap, os_type_heaps) coercion_env os_predef_symbols os_error
= ([ (oc_symbol, fun_index, over_info_ptr, class_applications) : reduced_calls ], new_contexts, coercion_env, type_pattern_vars,
{ os & os_type_heaps = os_type_heaps, os_symbol_heap = os_symbol_heap, os_var_heap = os_var_heap,
os_special_instances = os_special_instances, os_error = os_error, os_predef_symbols = os_predef_symbols })
remove_sub_classes contexts type_heaps
# (sub_classes, type_heaps) = foldSt generate_subclasses contexts ([], type_heaps)
= (foldSt (remove_doubles sub_classes) contexts [], type_heaps)
generate_subclasses {tc_class={glob_object={ds_index},glob_module},tc_types} (sub_classes, type_heaps)
# {class_args,class_members,class_context,class_dictionary} = defs.[glob_module].com_class_defs.[ds_index]
th_vars = fold2St set_type class_args tc_types type_heaps.th_vars
= foldSt subst_context class_context (sub_classes, { type_heaps & th_vars = th_vars })
where
set_type {tv_info_ptr} type type_var_heap
= type_var_heap <:= (tv_info_ptr, TVI_Type type)
subst_context class_context (sub_classes, type_heaps)
# (sub_class, type_heaps) = substitute class_context type_heaps
= ([sub_class : sub_classes], type_heaps)
remove_doubles sub_classes tc context
| containsContext tc sub_classes
= context
= [tc : context]
convert_dictionaries :: !{# CommonDefs } ![TypeContext] !(!SymbIdent,!Index,!ExprInfoPtr,![ClassApplication]) !(!*Heaps,!DictionaryTypes) -> (!*Heaps,!DictionaryTypes)
convert_dictionaries defs contexts (oc_symbol, index, over_info_ptr, class_applications) (heaps, dict_types)
# (heaps, ptrs) = convertOverloadedCall defs contexts oc_symbol over_info_ptr class_applications (heaps, [])
| isEmpty ptrs
= (heaps, dict_types)
= (heaps, add_to_dict_types index ptrs dict_types)
add_to_dict_types index ptrs []
= [(index, ptrs)]
add_to_dict_types new_index new_ptrs dt=:[(index, ptrs) : dict_types]
| new_index == index
= [(index, new_ptrs ++ ptrs) : dict_types]
= [(new_index, new_ptrs) : dt]
selectFromDictionary dict_mod dict_index member_index defs
# (RecordType {rt_fields}) = defs.[dict_mod].com_type_defs.[dict_index].td_rhs
{ fs_name, fs_index } = rt_fields.[member_index]
= { glob_module = dict_mod, glob_object = { ds_ident = fs_name, ds_index = fs_index, ds_arity = 1 }}
getDictionaryTypeAndConstructor {glob_module, glob_object = {ds_ident,ds_index}} defs
# {class_dictionary} = defs.[glob_module].com_class_defs.[ds_index]
(RecordType {rt_constructor}) = defs.[glob_module].com_type_defs.[class_dictionary.ds_index].td_rhs
= (class_dictionary, rt_constructor)
convertOverloadedCall :: !{#CommonDefs} ![TypeContext] !SymbIdent !ExprInfoPtr ![ClassApplication] !(!*Heaps, ![ExprInfoPtr]) -> (!*Heaps, ![ExprInfoPtr])
convertOverloadedCall defs contexts {symb_name,symb_kind = SK_OverloadedFunction {glob_module,glob_object}, symb_arity} expr_ptr [class_appl:class_appls] heaps_and_ptrs
# mem_def = defs.[glob_module].com_member_defs.[glob_object]
(class_exprs, heaps_and_ptrs) = convertClassApplsToExpressions defs contexts class_appls heaps_and_ptrs
(inst_expr, (heaps, ptrs)) = adjust_member_application defs contexts mem_def symb_arity class_appl class_exprs heaps_and_ptrs
= ({ heaps & hp_expression_heap = heaps.hp_expression_heap <:= (expr_ptr, inst_expr)}, ptrs)
where
adjust_member_application defs contexts {me_symb,me_offset,me_class} symb_arity (CA_Instance red_contexts) class_exprs heaps_and_ptrs
# ({glob_module,glob_object}, red_contexts) = find_instance_of_member me_class me_offset red_contexts
(exprs, heaps_and_ptrs) = convertClassApplsToExpressions defs contexts red_contexts heaps_and_ptrs
class_exprs = exprs ++ class_exprs
= (EI_Instance { glob_module = glob_module, glob_object = { ds_ident = me_symb, ds_arity = length class_exprs, ds_index = glob_object }} class_exprs,
heaps_and_ptrs)
adjust_member_application defs contexts {me_symb,me_offset,me_class={glob_module,glob_object}} symb_arity (CA_Context tc) class_exprs (heaps=:{hp_type_heaps}, ptrs)
# (class_context, address, hp_type_heaps) = determineContextAddress contexts defs tc hp_type_heaps
{class_dictionary={ds_index}} = defs.[glob_module].com_class_defs.[glob_object]
selector = selectFromDictionary glob_module ds_index me_offset defs
= (EI_Selection (generateClassSelection address [RecordSelection selector me_offset]) class_context.tc_var class_exprs,
({ heaps & hp_type_heaps = hp_type_heaps }, ptrs))
adjust_member_application defs contexts _ _ (CA_GlobalTypeCode {tci_index,tci_contexts}) _ heaps_and_ptrs
# (exprs, heaps_and_ptrs) = convertClassApplsToExpressions defs contexts tci_contexts heaps_and_ptrs
= (EI_TypeCode (TCE_Constructor tci_index (map expressionToTypeCodeExpression exprs)), heaps_and_ptrs)
adjust_member_application defs contexts _ _ (CA_LocalTypeCode new_var_ptr) _ heaps_and_ptrs
= (EI_TypeCode (TCE_Var new_var_ptr), heaps_and_ptrs)
find_instance_of_member me_class me_offset { rcs_class_context = {rc_class, rc_inst_module, rc_inst_members, rc_red_contexts}, rcs_constraints_contexts}
| rc_class.glob_module == me_class.glob_module && rc_class.glob_object.ds_index == me_class.glob_object
= ({ glob_module = rc_inst_module, glob_object = rc_inst_members.[me_offset].ds_index }, rc_red_contexts)
= find_instance_of_member_in_constraints me_class me_offset rcs_constraints_contexts
where
find_instance_of_member_in_constraints me_class me_offset [ rcs=:{rcs_constraints_contexts} : rcss ]
= find_instance_of_member me_class me_offset {rcs & rcs_constraints_contexts = rcs_constraints_contexts ++ rcss}
find_instance_of_member_in_constraints me_class me_offset []
= abort "Error in module overloading: find_instance_of_member_in_constraints\n"
convertOverloadedCall defs contexts {symb_name,symb_kind = SK_TypeCode} expr_info_ptr class_appls heaps_and_ptrs
# (class_expressions, (heaps, ptrs)) = convertClassApplsToExpressions defs contexts class_appls heaps_and_ptrs
= ({ heaps & hp_expression_heap = heaps.hp_expression_heap <:= (expr_info_ptr, EI_TypeCodes (map expressionToTypeCodeExpression class_expressions))}, ptrs)
convertOverloadedCall defs contexts {symb_name} expr_info_ptr appls heaps_and_ptrs
# (class_expressions, (heaps, ptrs)) = convertClassApplsToExpressions defs contexts appls heaps_and_ptrs
= ({ heaps & hp_expression_heap = heaps.hp_expression_heap <:= (expr_info_ptr, EI_Context class_expressions)}, ptrs)
expressionToTypeCodeExpression (TypeCodeExpression texpr) = texpr
expressionToTypeCodeExpression (ClassVariable var_info_ptr) = TCE_TypeTerm var_info_ptr // MV was TCE_Var var_info_ptr
/*
expressionToTypeCodeExpression (Var {var_info_ptr}) = TCE_Var var_info_ptr
*/
expressionToTypeCodeExpression expr = abort "expressionToTypeCodeExpression (overloading.icl)" // <<- expr)
generateClassSelection address last_selectors
= mapAppend (\(off_set,selector) -> RecordSelection selector off_set) address last_selectors
AttributedType type :== { at_attribute = TA_Multi, at_annotation = AN_None, at_type = type }
instance toString ClassApplication
where
toString (CA_Instance _) = abort "CA_Instance"
toString (CA_Context _) = abort "CA_Context"
toString (CA_LocalTypeCode _) = abort "CA_LocalTypeCode"
toString (CA_GlobalTypeCode _) = abort "CA_GlobalTypeCode"
convertClassApplsToExpressions defs contexts cl_appls heaps_and_ptrs
= mapSt (convert_class_appl_to_expression defs contexts) cl_appls heaps_and_ptrs
where
convert_class_appl_to_expression defs contexts (CA_Instance rcs) heaps_and_ptrs
= convert_reduced_contexts_to_expression defs contexts rcs heaps_and_ptrs
convert_class_appl_to_expression defs contexts (CA_Context tc) (heaps=:{hp_type_heaps}, ptrs)
# (class_context, context_address, hp_type_heaps) = determineContextAddress contexts defs tc hp_type_heaps
| isEmpty context_address
= (ClassVariable class_context.tc_var, ({ heaps & hp_type_heaps = hp_type_heaps }, ptrs))
= (Selection No (ClassVariable class_context.tc_var) (generateClassSelection context_address []), ({ heaps & hp_type_heaps = hp_type_heaps }, ptrs))
convert_class_appl_to_expression defs contexts (CA_LocalTypeCode new_var_ptr) heaps_and_ptrs
= (TypeCodeExpression (TCE_Var new_var_ptr), heaps_and_ptrs)
convert_class_appl_to_expression defs contexts (CA_GlobalTypeCode {tci_index,tci_contexts}) heaps_and_ptrs
# (exprs, heaps_and_ptrs) = convertClassApplsToExpressions defs contexts tci_contexts heaps_and_ptrs
= (TypeCodeExpression (TCE_Constructor tci_index (map expressionToTypeCodeExpression exprs)), heaps_and_ptrs)
convert_reduced_contexts_to_expression defs contexts {rcs_class_context,rcs_constraints_contexts} heaps_and_ptrs
# (rcs_exprs, heaps_and_ptrs) = mapSt (convert_reduced_contexts_to_expression defs contexts) rcs_constraints_contexts heaps_and_ptrs
= convert_reduced_context_to_expression defs contexts rcs_class_context rcs_exprs heaps_and_ptrs
where
convert_reduced_context_to_expression defs contexts {rc_class, rc_inst_module, rc_inst_members, rc_red_contexts, rc_types} dictionary_args heaps_and_ptrs
# (expressions, (heaps, class_ptrs)) = convertClassApplsToExpressions defs contexts rc_red_contexts heaps_and_ptrs
context_size = length expressions
| size rc_inst_members > 1 && context_size > 0
# (let_binds, let_types, rev_dicts, hp_var_heap, hp_expression_heap)
= foldSt (bind_shared_dictionary (size rc_inst_members)) expressions ([], [], [], heaps.hp_var_heap, heaps.hp_expression_heap)
dictionary_args = build_class_members (size rc_inst_members) rc_inst_members rc_inst_module (reverse rev_dicts) context_size dictionary_args
(dict_expr, hp_expression_heap, class_ptrs) = build_dictionary rc_class rc_types dictionary_args defs hp_expression_heap class_ptrs
| isEmpty let_binds
= (dict_expr, ({ heaps & hp_var_heap = hp_var_heap, hp_expression_heap = hp_expression_heap }, class_ptrs))
# (let_info_ptr, hp_expression_heap) = newPtr (EI_LetType let_types) hp_expression_heap
// MW0 = (Let { let_strict_binds = [], let_lazy_binds = let_binds, let_expr = dict_expr, let_info_ptr = let_info_ptr },
= (Let { let_strict_binds = [], let_lazy_binds = let_binds, let_expr = dict_expr, let_info_ptr = let_info_ptr, let_expr_position = NoPos },
({ heaps & hp_var_heap = hp_var_heap, hp_expression_heap = hp_expression_heap }, [let_info_ptr : class_ptrs]))
# dictionary_args = build_class_members (size rc_inst_members) rc_inst_members rc_inst_module expressions context_size dictionary_args
(dict_expr, hp_expression_heap, class_ptrs) = build_dictionary rc_class rc_types dictionary_args defs heaps.hp_expression_heap class_ptrs
= (dict_expr, ({ heaps & hp_expression_heap = hp_expression_heap }, class_ptrs))
build_class_members mem_offset ins_members mod_index class_arguments arity dictionary_args
| mem_offset == 0
= dictionary_args
# mem_offset = dec mem_offset
{ds_ident,ds_index} = ins_members.[mem_offset]
mem_expr = App { app_symb = {
symb_name = ds_ident,
symb_kind = SK_Function { glob_object = ds_index, glob_module = mod_index },
symb_arity = arity },
app_args = class_arguments,
app_info_ptr = nilPtr }
= build_class_members mem_offset ins_members mod_index class_arguments arity [ mem_expr : dictionary_args ]
build_dictionary class_symbol instance_types dictionary_args defs expr_heap ptrs
# (dict_type, dict_cons) = getDictionaryTypeAndConstructor class_symbol defs
record_symbol = { symb_name = dict_cons.ds_ident,
symb_kind = SK_Constructor {glob_module = class_symbol.glob_module, glob_object = dict_cons.ds_index},
symb_arity = dict_cons.ds_arity }
dict_type_symbol = MakeTypeSymbIdent {glob_module = class_symbol.glob_module, glob_object = dict_type.ds_index} dict_type.ds_ident dict_type.ds_arity
class_type = TA dict_type_symbol [ AttributedType type \\ type <- instance_types ]
(app_info_ptr, expr_heap) = newPtr (EI_DictionaryType class_type) expr_heap
rc_record = App { app_symb = record_symbol, app_args = dictionary_args, app_info_ptr = app_info_ptr }
= (rc_record, expr_heap, [app_info_ptr : ptrs])
bind_shared_dictionary nr_of_members dict=:(Let {let_expr=App {app_symb={symb_name}, app_info_ptr}}) (binds, types, rev_dicts, var_heap, expr_heap)
# (EI_DictionaryType class_type, expr_heap) = readPtr app_info_ptr expr_heap
(var_info_ptr, var_heap) = newPtr VI_Empty var_heap
fv = { fv_name = symb_name, fv_info_ptr = var_info_ptr, fv_def_level = NotALevel, fv_count = nr_of_members }
var = { var_name = symb_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr }
// MW0 = ([{bind_src = dict, bind_dst = fv} : binds ], [ AttributedType class_type : types ], [Var var : rev_dicts], var_heap, expr_heap)
= ([{lb_src = dict, lb_dst = fv, lb_position = NoPos } : binds ], [ AttributedType class_type : types ],
[Var var : rev_dicts], var_heap, expr_heap)
bind_shared_dictionary nr_of_members dict=:(App {app_symb={symb_name}, app_info_ptr}) (binds, types, rev_dicts, var_heap, expr_heap)
# (EI_DictionaryType class_type, expr_heap) = readPtr app_info_ptr expr_heap
(var_info_ptr, var_heap) = newPtr VI_Empty var_heap
fv = { fv_name = symb_name, fv_info_ptr = var_info_ptr, fv_def_level = NotALevel, fv_count = nr_of_members }
var = { var_name = symb_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr }
// MW0 = ([{bind_src = dict, bind_dst = fv} : binds ], [ AttributedType class_type : types ], [Var var : rev_dicts], var_heap, expr_heap)
= ([{lb_src = dict, lb_dst = fv, lb_position = NoPos} : binds ], [ AttributedType class_type : types ], [Var var : rev_dicts], var_heap, expr_heap)
bind_shared_dictionary nr_of_members dict (binds, types, rev_dicts, var_heap, expr_heap)
= (binds, types, [dict : rev_dicts], var_heap, expr_heap)
determineContextAddress :: ![TypeContext] !{#CommonDefs} !TypeContext !*TypeHeaps
-> (!TypeContext, ![(Int, Global DefinedSymbol)], !*TypeHeaps)
determineContextAddress contexts defs this_context type_heaps
= look_up_context_and_address this_context contexts defs type_heaps
where
look_up_context_and_address :: !TypeContext ![TypeContext] !{#CommonDefs} !*TypeHeaps -> (TypeContext, [(Int, Global DefinedSymbol)], !*TypeHeaps)
look_up_context_and_address context [] defs type_heaps
= abort "look_up_context_and_address (overloading.icl)"
look_up_context_and_address this_context [tc : tcs] defs type_heaps
#! (may_be_addres, type_heaps) = determine_address this_context tc [] defs type_heaps
= case may_be_addres of
Yes address
-> (tc, address, type_heaps)
No
-> look_up_context_and_address this_context tcs defs type_heaps
determine_address :: !TypeContext !TypeContext ![(Int, Global DefinedSymbol)] !{#CommonDefs} !*TypeHeaps
-> (!Optional [(Int, Global DefinedSymbol)],!*TypeHeaps)
determine_address tc1 tc2 address defs type_heaps=:{th_vars}
| tc1 == tc2
= (Yes address, type_heaps)
# {tc_class={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 }
= 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
-> (!Optional [(Int, Global DefinedSymbol)],!*TypeHeaps)
find_super_instance context [] tc_index address dict_mod dict_index defs type_heaps
= (No, type_heaps)
find_super_instance context [tc : tcs] tc_index address dict_mod dict_index defs type_heaps
#! (may_be_addres, type_heaps) = determine_address context tc address defs type_heaps
= case may_be_addres of
Yes address
# selector = selectFromDictionary dict_mod dict_index tc_index defs
-> (Yes [ (tc_index, selector) : address ], type_heaps)
No
-> find_super_instance context tcs (inc tc_index) address dict_mod dict_index defs type_heaps
getClassVariable :: !Ident !VarInfoPtr !*VarHeap !*ErrorAdmin -> (!Ident, !VarInfoPtr, !*VarHeap, !*ErrorAdmin)
getClassVariable symb var_info_ptr var_heap error
= case (readPtr var_info_ptr var_heap) of
(VI_ClassVar var_name new_info_ptr count, var_heap)
-> (var_name, new_info_ptr, var_heap <:= (var_info_ptr, VI_ClassVar var_name new_info_ptr (inc count)), error)
(_, var_heap)
-> (symb, var_info_ptr, var_heap, overloadingError symb error)
updateDynamics :: ![Index] ![LocalTypePatternVariable] !Int !*{#FunDef} !*{! FunctionType} !*ExpressionHeap !*TypeCodeInfo !*VarHeap !*ErrorAdmin !*{#PredefinedSymbol}
-> (!*{#FunDef}, !*{! FunctionType}, !*ExpressionHeap, !*TypeCodeInfo, !*VarHeap, !*ErrorAdmin, !*{#PredefinedSymbol})
updateDynamics funs type_pattern_vars main_dcl_module_n fun_defs fun_env symbol_heap type_code_info var_heap error predef_symbols
| error.ea_ok
= update_dynamics funs type_pattern_vars fun_defs fun_env symbol_heap type_code_info var_heap error predef_symbols
= (fun_defs, fun_env, symbol_heap, type_code_info, var_heap, error, predef_symbols)
where
update_dynamics [] type_pattern_vars fun_defs fun_env symbol_heap type_code_info var_heap error predef_symbols
= (fun_defs, fun_env, symbol_heap, type_code_info, var_heap, error, predef_symbols)
update_dynamics [fun:funs] type_pattern_vars fun_defs fun_env symbol_heap type_code_info var_heap error predef_symbols
#! fun_def = fun_defs.[fun]
# {fun_body,fun_symb,fun_info/* MV ={fi_group_index, fi_dynamics}*/} = fun_def
# {fi_group_index, fi_dynamics} = fun_info
| isEmpty fi_dynamics
= update_dynamics funs type_pattern_vars fun_defs fun_env symbol_heap type_code_info var_heap error predef_symbols
# (type_code_info, symbol_heap, type_pattern_vars, var_heap, error)
= convertDynamicTypes fi_dynamics (type_code_info, symbol_heap, type_pattern_vars, var_heap, error) /* MV */ []
(TransformedBody tb) = fun_body
(tb_rhs, {ui_instance_calls, ui_symbol_heap, ui_var_heap, ui_fun_defs, ui_fun_env, ui_error /* MV */, ui_x={x_type_code_info = type_code_info, x_predef_symbols = predef_symbols} /*, ui_new_variables */})
= updateExpression fi_group_index tb.tb_rhs
{ ui_instance_calls = [], ui_symbol_heap = symbol_heap, ui_fun_defs = fun_defs, ui_local_vars = [],
ui_fun_env = fun_env, ui_var_heap = var_heap, ui_error = error , /*ui_new_variables = [],*/
ui_x={x_type_code_info=type_code_info, x_predef_symbols=predef_symbols,x_main_dcl_module_n=main_dcl_module_n}}
fun_def = { fun_def & fun_body = TransformedBody {tb & tb_rhs = tb_rhs}
}
// /* MV */ , fun_info = { fun_info & fi_local_vars = ui_new_variables ++ fun_info.fi_local_vars }}
// = ({fun_defs & [fun] = { fun_def & fun_body = fun_body, fun_info = { fun_info & fi_local_vars = ci.ci_new_variables ++ fun_info.fi_local_vars }}},
= update_dynamics funs type_pattern_vars ({ ui_fun_defs & [fun] = fun_def })
ui_fun_env ui_symbol_heap type_code_info ui_var_heap ui_error predef_symbols
removeOverloadedFunctions :: ![Index] ![LocalTypePatternVariable] !Int!*{#FunDef} !*{! FunctionType} !*ExpressionHeap
!*TypeCodeInfo !*VarHeap !*ErrorAdmin !*{#PredefinedSymbol}
-> (!*{#FunDef}, !*{! FunctionType}, !*ExpressionHeap, !*TypeCodeInfo, !*VarHeap, !*ErrorAdmin, !*{#PredefinedSymbol})
removeOverloadedFunctions group type_pattern_vars main_dcl_module_n fun_defs fun_env symbol_heap type_code_info var_heap error predef_symbols
| error.ea_ok
# (fun_defs, fun_env, symbol_heap, type_code_info, var_heap, error, predef_symbols)
= foldSt (remove_overloaded_function type_pattern_vars) group (fun_defs, fun_env, symbol_heap, type_code_info, var_heap, error, predef_symbols)
= (fun_defs, fun_env, symbol_heap, type_code_info, var_heap, error, predef_symbols)
where
remove_overloaded_function type_pattern_vars fun_index (fun_defs, fun_env, symbol_heap, type_code_info, var_heap, error, predef_symbols)
# (fun_def, fun_defs) = fun_defs![fun_index]
(CheckedType {st_context}, fun_env) = fun_env![fun_index]
{fun_body = TransformedBody {tb_args,tb_rhs},fun_info,fun_arity,fun_symb,fun_pos} = fun_def
(rev_variables, var_heap) = foldSt determine_class_argument st_context ([], var_heap)
error = setErrorAdmin (newPosition fun_symb fun_pos) error
(type_code_info, symbol_heap, type_pattern_vars, var_heap, error)
= convertDynamicTypes fun_info.fi_dynamics (type_code_info, symbol_heap, type_pattern_vars, var_heap, error) /* MV */ rev_variables
(tb_rhs, {ui_instance_calls, ui_local_vars, ui_symbol_heap, ui_var_heap, ui_fun_defs, ui_fun_env, ui_error /* MV */, ui_x={x_type_code_info = type_code_info, x_predef_symbols = predef_symbols}}) //, ui_new_variables })
= updateExpression fun_info.fi_group_index tb_rhs { ui_instance_calls = [], ui_local_vars = fun_info.fi_local_vars, ui_symbol_heap = symbol_heap,
ui_var_heap = var_heap, ui_fun_defs = fun_defs, ui_fun_env = fun_env, ui_error = error
/* MV */, ui_x={x_type_code_info = type_code_info, x_predef_symbols = predef_symbols,x_main_dcl_module_n=main_dcl_module_n}}
(tb_args, var_heap) = foldSt retrieve_class_argument rev_variables (tb_args, ui_var_heap)
fun_def = { fun_def & fun_body = TransformedBody {tb_args = tb_args, tb_rhs = tb_rhs}, fun_arity = length tb_args,
fun_info = { fun_info & fi_calls = fun_info.fi_calls ++ ui_instance_calls, fi_local_vars = ui_local_vars } }
= ({ ui_fun_defs & [fun_index] = fun_def }, ui_fun_env, ui_symbol_heap, type_code_info, var_heap, ui_error, predef_symbols)
determine_class_argument {tc_class={glob_object={ds_ident={id_name}}}, tc_var} (variables, var_heap)
# (var_info, var_heap) = readPtr tc_var var_heap
= case var_info of
VI_ForwardClassVar var_info_ptr
# (var_info, var_heap) = readPtr var_info_ptr var_heap
// (new_info_ptr, var_heap) = newPtr VI_Empty var_heap
// -> ([var_info_ptr : variables], var_heap <:= (var_info_ptr, VI_ClassVar (build_var_name id_name) new_info_ptr 0 var_info))
-> case var_info of
VI_Empty
# (new_info_ptr, var_heap) = newPtr VI_Empty var_heap
-> ([var_info_ptr : variables], var_heap <:= (var_info_ptr, VI_ClassVar (build_var_name id_name) new_info_ptr 0))
_
-> abort "determine_class_argument (overloading.icl)"
VI_Empty
# (new_info_ptr, var_heap) = newPtr VI_Empty var_heap
var_heap = var_heap
-> ([tc_var : variables], var_heap <:= (tc_var, VI_ClassVar (build_var_name id_name) new_info_ptr 0))
_
-> abort "determine_class_argument (overloading.icl)"
build_var_name id_name
= { id_name = "_v" +++ id_name, id_info = nilPtr }
retrieve_class_argument var_info_ptr (args, var_heap)
# (VI_ClassVar var_name new_info_ptr count, var_heap) = readPtr var_info_ptr var_heap
= ([{fv_name = var_name, fv_info_ptr = new_info_ptr, fv_def_level = NotALevel, fv_count = count } : args], var_heap <:= (var_info_ptr, VI_Empty))
convertDynamicTypes dyn_ptrs update_info rev_variables
= foldSt update_dynamic dyn_ptrs update_info
where
update_dynamic dyn_ptr (type_code_info, expr_heap, type_pattern_vars, var_heap, error)
# (dyn_info, expr_heap) = readPtr dyn_ptr expr_heap
= case dyn_info of
EI_TempDynamicType (Yes {dt_global_vars, dt_uni_vars, dt_type}) _ _ expr_ptr {symb_name}
# (expr_info, expr_heap) = readPtr expr_ptr expr_heap
-> case expr_info of
EI_TypeCodes type_codes
// MV ..
# (type_var_heap,var_heap,error) = fold2St (f symb_name)
dt_global_vars type_codes (type_code_info.tci_type_var_heap,var_heap,error)
// .. MV
(uni_vars, (type_var_heap, var_heap)) = new_type_variables dt_uni_vars (type_var_heap, var_heap)
(type_code_expr, (type_code_info,var_heap,error)) = toTypeCodeExpression symb_name rev_variables dt_type ({ type_code_info & tci_type_var_heap = type_var_heap },var_heap,error)
-> (type_code_info, expr_heap <:= (dyn_ptr, EI_TypeOfDynamic uni_vars type_code_expr), type_pattern_vars, var_heap, error)
/*
ORIGINAL:
# type_var_heap = fold2St (\{tv_info_ptr} type_code -> writePtr tv_info_ptr (TVI_TypeCode type_code))
dt_global_vars type_codes type_code_info.tci_type_var_heap
(uni_vars, (type_var_heap, var_heap)) = new_type_variables dt_uni_vars (type_var_heap, var_heap)
(type_code_expr, (type_code_info, var_heap, error)) = toTypeCodeExpression dt_type { type_code_info & tci_type_var_heap = type_var_heap }
-> (type_code_info, expr_heap <:= (dyn_ptr, EI_TypeOfDynamic uni_vars type_code_expr), type_pattern_vars, var_heap, error)
*/
EI_Empty
# (uni_vars, (type_var_heap, var_heap)) = new_type_variables dt_uni_vars (type_code_info.tci_type_var_heap, var_heap)
(type_code_expr, (type_code_info,var_heap,error)) = toTypeCodeExpression symb_name rev_variables dt_type ({ type_code_info & tci_type_var_heap = type_var_heap },var_heap,error)
-> (type_code_info, expr_heap <:= (dyn_ptr, EI_TypeOfDynamic uni_vars type_code_expr), type_pattern_vars, var_heap, error)
EI_TempDynamicType No _ _ expr_ptr {symb_name}
# (expr_info, expr_heap) = readPtr expr_ptr expr_heap
-> case expr_info of
EI_TypeCode type_expr
# (type_expr, (free_vars, var_heap, rev_variables, error)) = retrieve_free_vars symb_name type_expr ([], var_heap, rev_variables, error)
var_heap = foldSt mark_free_var free_vars var_heap
-> (type_code_info, expr_heap <:= (dyn_ptr, EI_TypeOfDynamic free_vars type_expr), type_pattern_vars, var_heap, error)
EI_Selection selectors record_var _
# (_, var_info_ptr, var_heap, error) = getClassVariable symb_name record_var var_heap error
-> (type_code_info, expr_heap <:= (dyn_ptr, EI_TypeOfDynamic [] (convert_selectors selectors var_info_ptr /* MPM */ record_var)), type_pattern_vars, var_heap, error)
EI_TempDynamicPattern type_vars {dt_global_vars, dt_type} loc_dynamics temp_local_vars _ _ expr_ptr {symb_name}
# (expr_info, expr_heap) = readPtr expr_ptr expr_heap
-> case expr_info of
EI_TypeCodes type_codes
// # type_var_heap = fold2St (\{tv_info_ptr} type_code -> writePtr tv_info_ptr (TVI_TypeCode type_code)) dt_global_vars type_codes type_code_info.tci_type_var_heap
// MV ..
# (type_var_heap,var_heap,error) = fold2St (f symb_name)
dt_global_vars type_codes (type_code_info.tci_type_var_heap,var_heap,error)
// .. MV
(var_ptrs, (type_pattern_vars, var_heap)) = mapSt addLocalTCInstance temp_local_vars (type_pattern_vars, var_heap)
type_var_heap = fold2St (\{tv_info_ptr} var_ptr -> writePtr tv_info_ptr (TVI_TypeCode (TCE_Var var_ptr))) type_vars var_ptrs type_var_heap
(type_code_expr, (type_code_info,var_heap,error)) = toTypeCodeExpression symb_name rev_variables dt_type ({ type_code_info & tci_type_var_heap = type_var_heap },var_heap,error)
-> convert_local_dynamics loc_dynamics (type_code_info, expr_heap <:= (dyn_ptr, EI_TypeOfDynamicPattern var_ptrs type_code_expr), type_pattern_vars, var_heap, error)
EI_Empty
# (var_ptrs, (type_pattern_vars, var_heap)) = mapSt addLocalTCInstance temp_local_vars (type_pattern_vars, var_heap)
type_var_heap = fold2St (\{tv_info_ptr} var_ptr -> writePtr tv_info_ptr (TVI_TypeCode (TCE_Var var_ptr))) type_vars var_ptrs type_code_info.tci_type_var_heap
(type_code_expr, (type_code_info,var_heap,error)) = toTypeCodeExpression symb_name rev_variables dt_type ({ type_code_info & tci_type_var_heap = type_var_heap },var_heap,error)
-> convert_local_dynamics loc_dynamics (type_code_info, expr_heap <:= (dyn_ptr, EI_TypeOfDynamicPattern var_ptrs type_code_expr), type_pattern_vars, var_heap, error)
where
f symb_name {tv_info_ptr} type_code (type_var_heap,var_heap,error)
# (type_code,(_,var_heap,_,error))
= retrieve_free_vars symb_name type_code ([],var_heap,rev_variables,error)
# type_var_heap
= writePtr tv_info_ptr (TVI_TypeCode type_code) type_var_heap
= (type_var_heap,var_heap,error)
convert_local_dynamics loc_dynamics state
= foldSt update_dynamic loc_dynamics state
convert_selectors [type_code_selector] var_info_ptr record_var
// MV ..
| isMember record_var rev_variables
= TCE_TypeTerm var_info_ptr
// .. MV
= TCE_Var var_info_ptr
convert_selectors selectors var_info_ptr _
= TCE_Selector (init selectors) var_info_ptr
new_type_variables uni_vars heaps
= mapSt new_type_variable uni_vars heaps
new_type_variable {atv_variable = {tv_info_ptr}} (type_var_heap, var_heap)
# (new_var_ptr, var_heap) = newPtr VI_Empty var_heap
= (new_var_ptr, (type_var_heap <:= (tv_info_ptr, TVI_TypeCode (TCE_Var new_var_ptr)), var_heap))
mark_free_var var_info_ptr var_heap
= var_heap <:= (var_info_ptr, VI_LocallyDefined)
retrieve_free_vars :: !Ident !TypeCodeExpression *([Ptr VarInfo],*Heap VarInfo,u:[Ptr VarInfo],*ErrorAdmin) -> *(TypeCodeExpression,*([Ptr VarInfo],*Heap VarInfo,[Ptr VarInfo],*ErrorAdmin));
retrieve_free_vars symb_name (TCE_Var var_info_ptr1) free_vars_and_var_heap
# (var_info_ptr, (free_vars, var_heap, rev_variables, error)) = retrieve_var symb_name var_info_ptr1 free_vars_and_var_heap
// MV ..
| isMember var_info_ptr1 rev_variables
= (TCE_TypeTerm var_info_ptr, (free_vars, var_heap, rev_variables, error))
// .. MV
= (TCE_Var var_info_ptr, (free_vars, var_heap, rev_variables, error))
retrieve_free_vars symb_name (TCE_Constructor type_index type_args) free_vars_and_var_heap
# (type_args, free_vars_and_var_heap) = mapSt (retrieve_free_vars symb_name) type_args free_vars_and_var_heap
= (TCE_Constructor type_index type_args, free_vars_and_var_heap)
retrieve_free_vars symb_name (TCE_Selector selections var_info_ptr) free_vars_and_var_heap
# (var_info_ptr, free_vars_and_var_heap) = retrieve_var symb_name var_info_ptr free_vars_and_var_heap
= (TCE_Selector selections var_info_ptr, free_vars_and_var_heap)
retrieve_free_vars symb_name TCE_Empty free_vars_and_var_heap
= (TCE_Empty, free_vars_and_var_heap)
// MV ..
retrieve_free_vars symb_name (TCE_TypeTerm var_info_ptr1) free_vars_and_var_heap
# (var_info_ptr, (free_vars, var_heap, rev_variables, error)) = retrieve_var symb_name var_info_ptr1 free_vars_and_var_heap
| isMember var_info_ptr1 rev_variables
= (TCE_TypeTerm var_info_ptr, (free_vars, var_heap, rev_variables, error))
= (TCE_Var var_info_ptr, (free_vars, var_heap, rev_variables, error))
// MV ..
retrieve_var symb_name var_info_ptr (free_vars, var_heap, rev_variables, error)
= case (readPtr var_info_ptr var_heap) of
(VI_ClassVar var_name new_info_ptr count, var_heap)
-> (new_info_ptr, (free_vars, var_heap <:= (var_info_ptr, VI_ClassVar var_name new_info_ptr (inc count)), rev_variables, error))
(VI_Defined, var_heap)
-> (var_info_ptr, (free_vars, var_heap, rev_variables, error))
(VI_LocallyDefined, var_heap)
-> (var_info_ptr, (free_vars, var_heap, rev_variables, overloadingError symb_name error))
(_, var_heap)
-> (var_info_ptr, ([var_info_ptr : free_vars], var_heap <:= (var_info_ptr, VI_Defined), rev_variables, error))
:: TypeCodeInfo =
{ tci_next_index :: !Index
, tci_instances :: ![GlobalTCInstance]
, tci_type_var_heap :: !.TypeVarHeap
}
class toTypeCodeExpression type :: !Ident ![Ptr VarInfo] type !(!*TypeCodeInfo,!*VarHeap,!*ErrorAdmin) -> (!TypeCodeExpression, !(!*TypeCodeInfo,!*VarHeap,!*ErrorAdmin))
instance toTypeCodeExpression Type
where
toTypeCodeExpression symb_name rev_variables (TA cons_id type_args) (tci=:{tci_next_index,tci_instances},var_heap,error)
# (inst_index, (tci_next_index, tci_instances))
= addGlobalTCInstance (GTT_Constructor cons_id) (tci_next_index, tci_instances)
(type_code_args, tci) = mapSt (toTypeCodeExpression symb_name rev_variables) type_args ({ tci & tci_next_index = tci_next_index, tci_instances = tci_instances },var_heap,error)
= (TCE_Constructor inst_index type_code_args, tci)
toTypeCodeExpression symb_name rev_variables (TB basic_type) (tci=:{tci_next_index,tci_instances},var_heap,error)
# (inst_index, (tci_next_index, tci_instances))
= addGlobalTCInstance (GTT_Basic basic_type) (tci_next_index, tci_instances)
= (TCE_Constructor inst_index [], ({ tci & tci_next_index = tci_next_index, tci_instances = tci_instances },var_heap,error))
toTypeCodeExpression symb_name rev_variables (arg_type --> result_type) (tci=:{tci_next_index,tci_instances},var_heap,error)
# (inst_index, (tci_next_index, tci_instances))
= addGlobalTCInstance GTT_Function (tci_next_index, tci_instances)
(type_code_args, tci) = mapSt (toTypeCodeExpression symb_name rev_variables) [arg_type, result_type] ({ tci & tci_next_index = tci_next_index, tci_instances = tci_instances },var_heap,error)
= (TCE_Constructor inst_index type_code_args, tci)
toTypeCodeExpression symb_name rev_variables (TV {tv_info_ptr}) (tci=:{tci_type_var_heap},var_heap,error)
# (TVI_TypeCode type_code, tci_type_var_heap) = readPtr tv_info_ptr tci_type_var_heap
(type_code,(_,var_heap,_,error)) = retrieve_free_vars symb_name type_code ([],var_heap,rev_variables,error)
= (type_code, ({ tci & tci_type_var_heap = tci_type_var_heap },var_heap,error))
instance toTypeCodeExpression AType
where
toTypeCodeExpression symb_ident rev_variables {at_type} tci = toTypeCodeExpression symb_ident rev_variables at_type tci
:: UpdateInfo =
{ ui_instance_calls :: ![FunCall]
, ui_local_vars :: ![FreeVar]
, ui_symbol_heap :: !.ExpressionHeap
, ui_var_heap :: !.VarHeap
, ui_fun_defs :: !.{# FunDef}
, ui_fun_env :: !.{! FunctionType}
, ui_error :: !.ErrorAdmin
, ui_x :: !.UpdateInfoX
}
:: UpdateInfoX = {
x_type_code_info :: !.TypeCodeInfo
, x_predef_symbols :: !.{#PredefinedSymbol}
, x_main_dcl_module_n :: !Int
}
class updateExpression e :: !Index !e !*UpdateInfo -> (!e, !*UpdateInfo)
instance updateExpression Expression
where
updateExpression group_index (App app=:{app_symb=symb=:{symb_kind,symb_arity,symb_name},app_args,app_info_ptr}) ui
# (app_args, ui) = updateExpression group_index app_args ui
| isNilPtr app_info_ptr
= (App { app & app_args = app_args }, ui)
# (symb_info, ui_symbol_heap) = readPtr app_info_ptr ui.ui_symbol_heap
ui = { ui & ui_symbol_heap = ui_symbol_heap }
= case symb_info of
EI_Empty
#! main_dcl_module_n = ui.ui_x.UpdateInfoX.x_main_dcl_module_n
#! fun_index = get_recursive_fun_index group_index symb_kind main_dcl_module_n ui.ui_fun_defs
| fun_index == NoIndex
-> (App { app & app_args = app_args }, ui)
# (CheckedType {st_context}, ui) = ui!ui_fun_env.[fun_index]
(app_args, (ui_var_heap, ui_error)) = mapAppendSt (build_context_arg symb_name) st_context app_args (ui.ui_var_heap, ui.ui_error)
-> (App { app & app_symb = { symb & symb_arity = symb_arity + length st_context}, app_args = app_args },
{ ui & ui_var_heap = ui_var_heap, ui_error = ui_error })
EI_Context context_args
# (app_args, ui=:{ui_var_heap, ui_error}) = adjustClassExpressions symb_name context_args app_args ui
#! main_dcl_module_n = ui.ui_x.UpdateInfoX.x_main_dcl_module_n
#! fun_index = get_recursive_fun_index group_index symb_kind main_dcl_module_n ui.ui_fun_defs
| fun_index == NoIndex
# app = { app & app_symb = { symb & symb_arity = length context_args + symb_arity }, app_args = app_args}
-> (App app, examine_calls context_args { ui & ui_var_heap = ui_var_heap, ui_error = ui_error })
# (CheckedType {st_context}, ui) = ui!ui_fun_env.[fun_index]
nr_of_context_args = length context_args
nr_of_lifted_contexts = length st_context - nr_of_context_args
(app_args, (ui_var_heap, ui_error)) = mapAppendSt (build_context_arg symb_name) (take nr_of_lifted_contexts st_context) app_args (ui_var_heap, ui_error)
-> (App { app & app_symb = { symb & symb_arity = nr_of_lifted_contexts + nr_of_context_args + symb_arity }, app_args = app_args },
examine_calls context_args { ui & ui_var_heap = ui_var_heap, ui_error = ui_error })
EI_Instance inst_symbol context_args
# (context_args, ui=:{ui_var_heap, ui_error}) = adjustClassExpressions symb_name context_args [] ui
-> (build_application inst_symbol context_args app_args symb_arity app_info_ptr,
examine_calls context_args (new_call inst_symbol.glob_module inst_symbol.glob_object.ds_index
{ ui & ui_var_heap = ui_var_heap, ui_error = ui_error }))
EI_Selection selectors record_var context_args
# (all_args, ui=:{ui_var_heap, ui_error}) = adjustClassExpressions symb_name context_args app_args ui
(var_name, var_info_ptr, ui_var_heap, ui_error) = getClassVariable symb_name record_var ui_var_heap ui_error
select_expr = Selection No (Var { var_name = var_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr }) selectors
| isEmpty all_args
-> (select_expr, { ui & ui_var_heap = ui_var_heap, ui_error = ui_error })
-> (select_expr @ all_args, examine_calls context_args
{ ui & ui_var_heap = ui_var_heap, ui_error = ui_error })
where
build_context_arg symb {tc_var} (var_heap, error)
# (var_info, var_heap) = readPtr tc_var var_heap
= case var_info of
VI_ForwardClassVar var_info_ptr
# (var_name, var_info_ptr, var_heap, error) = getClassVariable symb var_info_ptr var_heap error
-> (Var { var_name = var_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr }, (var_heap, error))
VI_ClassVar var_name new_info_ptr count
-> (Var { var_name = var_name, var_info_ptr = new_info_ptr, var_expr_ptr = nilPtr },
(var_heap <:= (tc_var, VI_ClassVar var_name new_info_ptr (inc count)), error))
_
-> abort "build_context_arg (overloading.icl)"
get_recursive_fun_index :: !Index !SymbKind Int !{# FunDef} -> Index
get_recursive_fun_index group_index (SK_Function {glob_module,glob_object}) main_dcl_module_n fun_defs
| glob_module == main_dcl_module_n
# {fun_info,fun_index} = fun_defs.[glob_object]
| fun_info.fi_group_index == group_index
= fun_index
= NoIndex
= NoIndex
get_recursive_fun_index group_index _ main_dcl_module_n fun_defs
= NoIndex
build_application def_symbol=:{glob_object} context_args orig_args nr_of_orig_args app_info_ptr
= App {app_symb = { symb_name = glob_object.ds_ident,
symb_kind = SK_Function { def_symbol & glob_object = glob_object.ds_index },
symb_arity = glob_object.ds_arity + nr_of_orig_args },
app_args = context_args ++ orig_args, app_info_ptr = app_info_ptr }
examine_application (SK_Function {glob_module,glob_object}) ui
= new_call glob_module glob_object ui
examine_application symb_kind ui
= ui
new_call mod_index symb_index ui=:{ui_instance_calls,ui_fun_defs}
// | mod_index == cIclModIndex && symb_index < size ui_fun_defs
| mod_index == ui.ui_x.UpdateInfoX.x_main_dcl_module_n && symb_index < size ui_fun_defs
# ui_instance_calls = add_call symb_index ui_instance_calls
= { ui & ui_instance_calls = ui_instance_calls }
= ui
where
add_call fun_num []
= [{ fc_level = 0, fc_index = fun_num }]
add_call fun_num funs=:[call=:{fc_index} : ui]
| fun_num == fc_index
= funs
| fun_num < fc_index
= [{ fc_level = 0, fc_index = fun_num } : funs]
= [call : add_call fun_num ui]
examine_calls [expr : exprs] ui
= examine_calls exprs (examine_calls_in_expr expr ui)
where
examine_calls_in_expr (App {app_symb = {symb_name,symb_kind}, app_args}) ui
= examine_calls app_args (examine_application symb_kind ui)
examine_calls_in_expr (Let {let_expr,let_lazy_binds}) ui
# ui = examine_calls_in_expr let_expr ui
= foldSt (examine_calls_bind) let_lazy_binds (examine_calls_in_expr let_expr ui)
examine_calls_in_expr _ ui
= ui
// MW0 examine_calls_bind {bind_src,bind_dst} ui=:{ui_local_vars}
// MW0 = examine_calls_in_expr bind_src { ui & ui_local_vars = [bind_dst : ui_local_vars ]}
examine_calls_bind {lb_src,lb_dst} ui=:{ui_local_vars}
= examine_calls_in_expr lb_src { ui & ui_local_vars = [lb_dst : ui_local_vars ]}
examine_calls [] ui
= ui
updateExpression group_index (expr @ exprs) ui
# ((expr, exprs), ui) = updateExpression group_index (expr, exprs) ui
= (expr @ exprs, ui)
updateExpression group_index (Let lad=:{let_lazy_binds, let_strict_binds, let_expr}) ui
# (let_lazy_binds, ui) = updateExpression group_index let_lazy_binds ui
# (let_strict_binds, ui) = updateExpression group_index let_strict_binds ui
# (let_expr, ui) = updateExpression group_index let_expr ui
= (Let {lad & let_lazy_binds = let_lazy_binds, let_strict_binds = let_strict_binds, let_expr = let_expr}, ui)
updateExpression group_index (Case kees=:{case_expr,case_guards,case_default}) ui
# ((case_expr,(case_guards,case_default)), ui) = updateExpression group_index (case_expr,(case_guards,case_default)) ui
= (Case { kees & case_expr = case_expr, case_guards = case_guards, case_default = case_default }, ui)
updateExpression group_index (Selection is_unique expr selectors) ui
# (expr, ui) = updateExpression group_index expr ui
(selectors, ui) = updateExpression group_index selectors ui
= (Selection is_unique expr selectors, ui)
updateExpression group_index (Update expr1 selectors expr2) ui
# (expr1, ui) = updateExpression group_index expr1 ui
(selectors, ui) = updateExpression group_index selectors ui
(expr2, ui) = updateExpression group_index expr2 ui
= (Update expr1 selectors expr2, ui)
updateExpression group_index (RecordUpdate cons_symbol expression expressions) ui
# (expression, ui) = updateExpression group_index expression ui
(expressions, ui) = updateExpression group_index expressions ui
= (RecordUpdate cons_symbol expression expressions, ui)
updateExpression group_index (DynamicExpr dyn=:{dyn_expr,dyn_info_ptr}) ui
# (dyn_expr, ui) = updateExpression group_index dyn_expr ui
(EI_TypeOfDynamic uni_vars type_code, ui_symbol_heap) = readPtr dyn_info_ptr ui.ui_symbol_heap
= (DynamicExpr { dyn & dyn_expr = dyn_expr, dyn_type_code = type_code, dyn_uni_vars = uni_vars }, { ui & ui_symbol_heap = ui_symbol_heap })
updateExpression group_index (MatchExpr opt_tuple cons_symbol expr) ui
# (expr, ui) = updateExpression group_index expr ui
= (MatchExpr opt_tuple cons_symbol expr, ui)
updateExpression group_index (TupleSelect symbol argn_nr expr) ui
# (expr, ui) = updateExpression group_index expr ui
= (TupleSelect symbol argn_nr expr, ui)
updateExpression group_index expr ui
= (expr, ui)
instance updateExpression LetBind
where
updateExpression group_index bind=:{lb_src} ui
# (lb_src, ui) = updateExpression group_index lb_src ui
= ({bind & lb_src = lb_src }, ui)
instance updateExpression (Bind a b) | updateExpression a
where
updateExpression group_index bind=:{bind_src} ui
# (bind_src, ui) = updateExpression group_index bind_src ui
= ({bind & bind_src = bind_src }, ui)
instance updateExpression (Optional a) | updateExpression a
where
updateExpression group_index (Yes x) ui
# (x, ui) = updateExpression group_index x ui
= (Yes x, ui)
updateExpression group_index No ui
= (No, ui)
instance updateExpression CasePatterns
where
updateExpression group_index (AlgebraicPatterns type patterns) ui
# (patterns, ui) = updateExpression group_index patterns ui
= (AlgebraicPatterns type patterns, ui)
updateExpression group_index (BasicPatterns type patterns) ui
# (patterns, ui) = updateExpression group_index patterns ui
= (BasicPatterns type patterns, ui)
updateExpression group_index (DynamicPatterns patterns) ui
# (patterns, ui) = updateExpression group_index patterns ui
= (DynamicPatterns patterns, ui)
instance updateExpression AlgebraicPattern
where
updateExpression group_index pattern=:{ap_vars,ap_expr} ui
# (ap_expr, ui) = updateExpression group_index ap_expr ui
= ({ pattern & ap_expr = ap_expr }, ui)
instance updateExpression BasicPattern
where
updateExpression group_index pattern=:{bp_expr} ui
# (bp_expr, ui) = updateExpression group_index bp_expr ui
= ({ pattern & bp_expr = bp_expr }, ui)
instance updateExpression Selection
where
updateExpression group_index (ArraySelection selector=:{glob_object={ds_ident}} expr_ptr index_expr) ui
# (index_expr, ui) = updateExpression group_index index_expr ui
(symb_info, ui_symbol_heap) = readPtr expr_ptr ui.ui_symbol_heap
ui = { ui & ui_symbol_heap = ui_symbol_heap }
= case symb_info of
EI_Instance array_select []
-> (ArraySelection array_select expr_ptr index_expr, ui)
EI_Selection selectors record_var context_args
# (var_name, var_info_ptr, ui_var_heap, ui_error) = getClassVariable ds_ident record_var ui.ui_var_heap ui.ui_error
-> (DictionarySelection { var_name = var_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr } selectors expr_ptr index_expr,
{ ui & ui_var_heap = ui_var_heap, ui_error = ui_error })
updateExpression group_index selection ui
= (selection, ui)
instance updateExpression TypeCase
where
updateExpression group_index type_case=:{type_case_dynamic,type_case_patterns,type_case_default} ui
# ((type_case_dynamic,(type_case_patterns,type_case_default)), ui) = updateExpression group_index
(type_case_dynamic,(type_case_patterns,type_case_default)) ui
= ({ type_case & type_case_dynamic = type_case_dynamic, type_case_patterns = type_case_patterns, type_case_default = type_case_default }, ui)
instance updateExpression DynamicPattern
where
updateExpression group_index dp=:{dp_type,dp_rhs} ui
# (dp_rhs, ui) = updateExpression group_index dp_rhs ui
(EI_TypeOfDynamicPattern type_pattern_vars type_code, ui_symbol_heap) = readPtr dp_type ui.ui_symbol_heap
= ({ dp & dp_rhs = dp_rhs, dp_type_patterns_vars = type_pattern_vars, dp_type_code = type_code }, { ui & ui_symbol_heap = ui_symbol_heap })
instance updateExpression (a,b) | updateExpression a & updateExpression b
where
updateExpression group_index t ui
= app2St (updateExpression group_index,updateExpression group_index) t ui
instance updateExpression [e] | updateExpression e
where
updateExpression group_index l ui
= mapSt (updateExpression group_index) l ui
adjustClassExpressions symb_name exprs tail_exprs ui
= mapAppendSt (adjustClassExpression symb_name) exprs tail_exprs ui
where
adjustClassExpression symb_name (App app=:{app_args}) ui
# (app_args, ui) = adjustClassExpressions symb_name app_args [] ui
= (App { app & app_args = app_args }, ui)
adjustClassExpression symb_name (ClassVariable var_info_ptr) ui=:{ui_var_heap, ui_error}
# (var_name, var_info_ptr, ui_var_heap, ui_error) = getClassVariable symb_name var_info_ptr ui_var_heap ui_error
= (Var { var_name = var_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr }, { ui & ui_var_heap = ui_var_heap, ui_error = ui_error})
adjustClassExpression symb_name (Selection opt_type expr selectors) ui
# (expr, ui) = adjustClassExpression symb_name expr ui
= (Selection opt_type expr selectors, ui)
// MV ..
adjustClassExpression symb_name l=:(TypeCodeExpression type_code_expression) ui
# (expr,uni_vars,ui)
= convertTypecode type_code_expression [] ui
| not (isEmpty uni_vars)
# (let_binds,ui) = createVariables uni_vars ui
(let_info_ptr,ui) = let_ptr ui
= ( Let { let_strict_binds = []
, let_lazy_binds = let_binds
, let_expr = expr
, let_info_ptr = let_info_ptr
, let_expr_position = NoPos} // MW0++
, ui)
= (expr, ui)
where
// similar to equally named function in convertDynamics.icl
convertTypecode TCE_Empty uni_vars ui
= (EE,uni_vars,ui)
// should not match
// convertTypecode (TCE_Var var_info_ptr) uni_vars ui
// = (Var {var_name = a_ij_var_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr},[var_info_ptr:uni_vars],ui)
convertTypecode (TCE_TypeTerm var_info_ptr) uni_vars ui
// # v_tc_name = { id_name = "overloadingvTC", id_info = nilPtr }
// = (Var {var_name = v_tc_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr},uni_vars,ui)
= (Var {var_name = v_tc_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr},[var_info_ptr:uni_vars],ui)
convertTypecode (TCE_Constructor index typecode_exprs) uni_vars ui
# (typecons_symb,ui) = getSymbol PD_TypeConsSymbol SK_Constructor 2 ui
(constructor,ui) = get_constructor index ui
(typecode_exprs, uni_vars,ui) = convertTypecodes typecode_exprs uni_vars ui
= (App {app_symb = typecons_symb,
app_args = [constructor , typecode_exprs ],
app_info_ptr = nilPtr}, uni_vars, ui)
convertTypecode (TCE_Selector selections var_info_ptr) uni_vars ui
= (Selection No (Var { var_name = a_ij_var_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr }) selections,uni_vars,ui)
convertTypecodes [] uni_vars ui
# (nil_symb, ui) = getSymbol PD_NilSymbol SK_Constructor 0 ui
= (App { app_symb = nil_symb,
app_args = [],
app_info_ptr = nilPtr}, uni_vars, ui)
convertTypecodes [typecode_expr : typecode_exprs] uni_vars ui
# (cons_symb, ui) = getSymbol PD_ConsSymbol SK_Constructor 2 ui
(expr,uni_vars, ui) = convertTypecode typecode_expr uni_vars ui
(exprs,uni_vars,ui) = convertTypecodes typecode_exprs uni_vars ui
= (App { app_symb = cons_symb,
app_args = [expr , exprs],
app_info_ptr = nilPtr}, uni_vars, ui)
createVariables var_info_ptrs ui
= mapSt create_variable var_info_ptrs ui
where
create_variable var_info_ptr ui
# (placeholder_symb, ui) = getSymbol PD_variablePlaceholder SK_Constructor 3 ui
cyclic_var = {var_name = v_tc_name, var_info_ptr = var_info_ptr, var_expr_ptr = nilPtr}
cyclic_fv = varToFreeVar cyclic_var 1
// MW0 = ({ bind_src = App { app_symb = placeholder_symb,
= ({ lb_src = App { app_symb = placeholder_symb,
app_args = [Var cyclic_var, Var cyclic_var],
app_info_ptr = nilPtr },
// MW0 bind_dst = varToFreeVar cyclic_var 1
lb_dst = varToFreeVar cyclic_var 1,
lb_position = NoPos
},
{ ui & ui_local_vars = [cyclic_fv : ui.ui_local_vars]})
getSymbol :: !Int !(!(Global !Int) -> !SymbKind) !Int !*UpdateInfo -> (SymbIdent,*UpdateInfo)
getSymbol index symb_kind arity ui=:{ui_x=ui_x=:{x_predef_symbols}}
# ({pds_module, pds_def, pds_ident}, x_predef_symbols) = x_predef_symbols![index]
ui_x = { ui_x & x_predef_symbols = x_predef_symbols}
ui={ui & ui_x=ui_x}
symbol = { symb_name = pds_ident, symb_kind = symb_kind { glob_module = pds_module, glob_object = pds_def}, symb_arity = arity }
= (symbol,ui)
get_constructor :: !Int !*UpdateInfo -> !(!Expression,!*UpdateInfo)
get_constructor index ui=:{ui_x={x_type_code_info={tci_instances}}}
/*
** MV
** Inefficiency. The correct gtci_type referred to by index has to be selected from the list of
** instances (tci_instances). A rather inefficient linear search is used to look up the type. It
** is a temporary solution.
*/
# tci_instance
= filter (\{gtci_index} -> gtci_index == index) tci_instances // {createArray ? GTT_Function & [gtci_index] = gtci_type \\ {gtci_index, gtci_type} <- tci_instances}
| isEmpty tci_instance
= abort "get_constructor (overloading.icl): internal error"
# tci_instance
= (hd tci_instance).gtci_type // tci_instances.[index]
# cons_expr
= BasicExpr (BVS ("\"" +++ toString tci_instance +++ "\"")) (BT_String TE)
= (cons_expr,ui)
a_ij_var_name = { id_name = "a_ij", id_info = nilPtr }
v_tc_name = { id_name = "overloadingvTC", id_info = nilPtr }
varToFreeVar :: BoundVar Int -> FreeVar
varToFreeVar {var_name, var_info_ptr} count
= {fv_def_level = NotALevel, fv_name = var_name, fv_info_ptr = var_info_ptr, fv_count = count}
let_ptr ui=:{ui_symbol_heap}
# (expr_info_ptr, ui_symbol_heap) = newPtr (EI_LetType (repeat empty_attributed_type)) ui_symbol_heap
= (expr_info_ptr, {ui & ui_symbol_heap = ui_symbol_heap})
where
empty_attributed_type :: AType
empty_attributed_type = { at_attribute = TA_Multi, at_annotation = AN_None, at_type = TE }
// .. MV
adjustClassExpression symb_name expr ui
= (expr, ui)
class equalTypes a :: !a !a !*TypeVarHeap -> (!Bool, !*TypeVarHeap)
instance equalTypes AType
where
equalTypes atype1 atype2 type_var_heap
= equalTypes atype1.at_type atype2.at_type type_var_heap
equalTypeVars {tv_info_ptr} temp_var_id type_var_heap
#! tv_info = sreadPtr tv_info_ptr type_var_heap
= case tv_info of
TVI_Forward forw_var_number
-> (forw_var_number == temp_var_id, type_var_heap)
_
-> (True, type_var_heap <:= (tv_info_ptr, TVI_Forward temp_var_id))
instance equalTypes Type
where
equalTypes (TV tv) (TempV var_number) type_var_heap
= equalTypeVars tv var_number type_var_heap
equalTypes (arg_type1 --> restype1) (arg_type2 --> restype2) type_var_heap
= equalTypes (arg_type1,restype1) (arg_type2,restype2) type_var_heap
equalTypes (TA tc1 types1) (TA tc2 types2) type_var_heap
| tc1 == tc2
= equalTypes types1 types2 type_var_heap
= (False, type_var_heap)
equalTypes (TB basic1) (TB basic2) type_var_heap
= (basic1 == basic2, type_var_heap)
equalTypes (CV tv :@: types1) (TempCV var_number :@: types2) type_var_heap
# (eq, type_var_heap) = equalTypeVars tv var_number type_var_heap
| eq
= equalTypes types1 types2 type_var_heap
= (False, type_var_heap)
equalTypes type1 type2 type_var_heap
= (False, type_var_heap)
instance equalTypes (a,b) | equalTypes a & equalTypes b
where
equalTypes (x1,y1) (x2,y2) type_var_heap
# (eq, type_var_heap) = equalTypes x1 x2 type_var_heap
| eq
= equalTypes y1 y2 type_var_heap
= (False, type_var_heap)
instance equalTypes [a] | equalTypes a
where
equalTypes [x:xs] [y:ys] type_var_heap
= equalTypes (x,xs) (y,ys) type_var_heap
equalTypes [] [] type_var_heap
= (True, type_var_heap)
equalTypes _ _ type_var_heap
= (False, type_var_heap)
instance <<< TypeContext
where
(<<<) file tc = file <<< tc.tc_class.glob_object.ds_ident <<< ' ' <<< tc.tc_types <<< " <" <<< tc.tc_var <<< '>'
instance <<< FunCall
where
(<<<) file {fc_index} = file <<< fc_index
instance <<< Special
where
(<<<) file {spec_types} = file <<< spec_types
instance <<< (Ptr x)
where
(<<<) file ptr = file <<< '<' <<< ptrToInt ptr <<< '>'
/*
instance <<< TypeCodeExpression
where
(<<<) file _ = file
*/
instance <<< DefinedSymbol
where
(<<<) file ds = file <<< ds.ds_ident
instance <<< ExprInfo
where
(<<<) file (EI_Instance symb exprs) = file <<< symb <<< exprs
(<<<) file (EI_Selection sels var_ptr exprs) = file <<< sels <<< var_ptr <<< exprs
(<<<) file (EI_Context exprs) = file <<< exprs
(<<<) file _ = file
instance <<< ClassApplication
where
(<<<) file (CA_Instance rc) = file <<< "CA_Instance"
(<<<) file (CA_Context tc) = file <<< "CA_Context " <<< tc
(<<<) file (CA_LocalTypeCode tc) = file <<< "CA_LocalTypeCode " <<< tc
(<<<) file (CA_GlobalTypeCode tci) = file <<< "CA_GlobalTypeCode " <<< tci
instance <<< TypeCodeInstance
where
(<<<) file {tci_index, tci_contexts} = file <<< tci_index <<< ' ' <<< tci_contexts
