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definition module unitype
import StdEnv
import syntax, analunitypes
:: CoercionState =
{ crc_type_heaps :: !.TypeHeaps
, crc_coercions :: !.Coercions
, crc_td_infos :: !.TypeDefInfos
}
coerce :: !Sign !{#CommonDefs} !{#BOOLVECT} !TypePosition !AType !AType !*CoercionState -> (!Optional TypePosition, !*CoercionState)
:: TypePosition :== [Int]
AttrUni :== 0
AttrMulti :== 1
AttrExi :== 2
FirstAttrVar :== 3
instance toInt TypeAttribute
:: CoercionTree = CT_Node !Int !CoercionTree !CoercionTree | CT_Empty | CT_Unique | CT_NonUnique | CT_Existential
:: Coercions = { coer_demanded :: !.{! .CoercionTree}, coer_offered :: !.{! .CoercionTree }}
isNonUnique :: !CoercionTree -> Bool
isUnique :: !CoercionTree -> Bool
isExistential :: !CoercionTree -> Bool
isNonUniqueAttribute :: !Int !Coercions -> Bool
isUniqueAttribute :: !Int !Coercions -> Bool
:: BOOLVECT :== Int
BITINDEX temp_var_id :== temp_var_id >> 5
BITNUMBER temp_var_id :== temp_var_id bitand 31
set_bit :: !Int !*{# BOOLVECT} -> .{# BOOLVECT}
determineAttributeCoercions :: !AType !AType !Bool !u:{!Type} !*Coercions !{#CommonDefs} !{#BOOLVECT} !*TypeDefInfos !*TypeHeaps
-> (!Optional (TypePosition, AType), !u:{!Type}, !*Coercions, !*TypeDefInfos, !*TypeHeaps)
:: AttributePartition :== {# Int}
partitionateAttributes :: !{! CoercionTree} !{! *CoercionTree} -> (!AttributePartition, !*{! CoercionTree})
newInequality :: !Int !Int !*Coercions -> *Coercions
tryToMakeNonUnique :: !Int !*Coercions -> (!Bool, !*Coercions)
tryToMakeUnique :: !Int !*Coercions -> (!Bool, !*Coercions)
uniquenessErrorVar :: !FreeVar !FunctionBody !String !*ErrorAdmin -> *ErrorAdmin
liftSubstitution :: !*{! Type} !{# CommonDefs }!{# BOOLVECT } !Int !*TypeHeaps !*TypeDefInfos -> (*{! Type}, !Int, !*TypeHeaps, !*TypeDefInfos)
:: ExpansionState =
{ es_type_heaps :: !.TypeHeaps
, es_td_infos :: !.TypeDefInfos
}
class expandType a :: !{# CommonDefs } !{# BOOLVECT } !a !*(!u:{! Type}, !*ExpansionState) -> (!Bool, !a, !*(!u:{! Type}, !*ExpansionState))
instance expandType AType
checkExistentionalAttributeVars :: [TempAttrId] !AttributePartition !*{! CoercionTree} -> (!Bool,!*{! CoercionTree})
copyCoercions :: *Coercions -> (*Coercions, *Coercions)
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