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definition module checktypes
import checksupport, typesupport
checkTypeDefs :: !Bool !*{# CheckedTypeDef} !Index !Int !*{# ConsDef} !*{# SelectorDef} !*{# DclModule} !*TypeHeaps !*CheckState
-> (!*{# CheckedTypeDef}, !*{# ConsDef}, !*{# SelectorDef}, !*{# DclModule}, !*TypeHeaps, !*CheckState)
checkSymbolType :: !Index !SymbolType !Specials !u:{# CheckedTypeDef} !v:{# ClassDef} !u:{# DclModule} !*TypeHeaps !*CheckState
-> (!SymbolType, !Specials, !u:{# CheckedTypeDef}, !v:{# ClassDef}, !u:{# DclModule}, !*TypeHeaps, !*CheckState)
checkTypeContexts :: ![TypeContext] !Index !u:{# CheckedTypeDef} !v:{# ClassDef} !u:{# DclModule} !*TypeHeaps !*CheckState
-> (![TypeContext], !u:{#CheckedTypeDef}, !v:{# ClassDef}, !u:{# DclModule}, !*TypeHeaps, !*CheckState)
checkInstanceType :: !Index !InstanceType !Specials !u:{# CheckedTypeDef} !v:{# ClassDef} !u:{# DclModule} !*TypeHeaps !*CheckState
-> (!InstanceType, !Specials, !u:{# CheckedTypeDef}, !v:{# ClassDef}, !u:{# DclModule}, !*TypeHeaps, !*CheckState)
checkDynamicTypes :: !Index ![ExprInfoPtr] !(Optional SymbolType) !u:{# CheckedTypeDef} !u:{# DclModule} !*TypeHeaps !*ExpressionHeap !*CheckState
-> (!u:{# CheckedTypeDef}, !u:{# DclModule}, !*TypeHeaps, !*ExpressionHeap, !*CheckState)
createClassDictionaries :: !Index !*{#ClassDef} !u:{#.DclModule} !Index !Index !Index !Int !*TypeVarHeap !*VarHeap !*CheckState
-> (!*{#ClassDef}, !u:{#DclModule}, ![CheckedTypeDef], ![SelectorDef], ![ConsDef], !*TypeVarHeap, !*VarHeap, !*CheckState)
isATopConsVar cv :== cv < 0
encodeTopConsVar cv :== dec (~cv)
decodeTopConsVar cv :== ~(inc cv)
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