package Ġio . gitlab . art urb os ch . gro v lin . ast . symbols Ċ Ċ import Ġio . gitlab . art urb os ch . gro v lin . ast . Gro v lin File Ċ import Ġio . gitlab . art urb os ch . gro v lin . ast . Node With Override Ċ import Ġjava . util . ArrayList Ċ import Ġjava . util . HashMap Ċ Ċ /** Ċ Ġ* Ġ@ author ĠArt ur ĠB os ch Ċ Ġ*/ Ċ class ĠClass Symbol ( override Ġval Ġname : ĠString , ĊĉĉĉĉĠ Ġoverride Ġvar Ġtype : ĠSymbol Type ?, ĊĉĉĉĉĠ Ġoverride Ġvar Ġen closing Scope : ĠScope ) Ġ: ĠScoped Symbol () Ġ{ ĊĊ ĉ private Ġval Ġmembers : ĠMutable Map < String , ĠSymbol > Ġ= ĠHashMap () Ċ ĉ var Ġparent Scope : ĠClass Symbol ? Ġ= Ġnull Ċ ĉ val Ġtrait Scopes : ĠMutable List < Class Symbol > Ġ= Ġmutable ListOf () Ċ ĉ override Ġvar Ġscope : ĠScope ? Ġ= ĠLocal Scope ("< $ name : body ", Ġen closing Scope ) ĊĊ ĉ override Ġfun Ġdefine ( symbol : ĠSymbol ) Ġ{ Ċĉ ĉ members [ symbol . name ] Ġ= Ġsymbol Ċ ĉ } ĊĊ ĉ override Ġfun Ġresolve ( name : ĠString ): ĠSymbol ? Ġ= Ġmembers [ name ] Ċĉĉ ĉ ?: ĠgetParent Scope ()?. resolve ( name ) ĊĊ ĉ fun Ġresolve Member ( name : ĠString ): ĠSymbol ? Ġ= Ġmembers [ name ] Ċĉĉ ĉ ?: Ġparent Scope ?. resolve Member ( name ) Ċĉĉ ĉ ?: Ġtrait Scopes . find Ġ{ Ġit . resolve Member ( name ) Ġ!= Ġnull Ġ} ?. resolve Member ( name ) ĊĊ ĉ fun Ġadd Trait Scope ( trait : ĠClass Symbol ?) Ġ{ Ċĉ ĉ if Ġ( trait Ġ!= Ġnull ) Ġ{ Ċĉĉ ĉ trait Scopes . add ( trait ) Ċĉ ĉ } Ċ ĉ } ĊĊ ĉ private Ġfun Ġget Member Symbols () Ġ= Ġmembers . values Ċ ĉ private Ġfun Ġget Inherited Member Symbols Need ing Override (): ĠMutable Map < String , ĠSymbol > Ġ{ Ċĉ ĉ val Ġsymbols Ġ= ĠHashMap < String , ĠSymbol >() Ċĉ ĉ for Ġ( trait Scope Ġin Ġtrait Scopes ) Ġ{ Ċĉĉ ĉ val Ġinherited Need ing Override Ġ= Ġtrait Scope . get Inherited Member Symbols Need ing Override () Ċĉĉ ĉ for Ġ(( name , Ġsymbol ) Ġin Ġinherited Need ing Override ) Ġ{ Ċĉĉĉ ĉ symbols . put ( name , Ġsymbol ) Ċĉĉ ĉ } Ċĉĉ ĉ for Ġ( symbol Ġin Ġtrait Scope . get Member Symbols ()) Ġ{ Ċĉĉĉ ĉ if Ġ(! symbol . need Override Ġ&& Ġsymbol . name Ġin Ġsymbols ) Ġ{ Ċĉĉĉĉ ĉ symbols . remove ( symbol . name ) Ċĉĉĉ ĉ } Ċĉĉĉ ĉ if Ġ( symbol . need Override ) Ġ{ Ċĉĉĉĉ ĉ symbols . put ( symbol . name , Ġsymbol ) Ċĉĉĉ ĉ } Ċĉĉ ĉ } Ċĉ ĉ } Ċĉ ĉ return Ġsymbols Ċ ĉ } ĊĊ ĉ fun Ġcheck Over riding Trait Members ( gro v lin File : ĠGro v lin File ) Ġ{ Ċĉ ĉ val Ġsymbols Need ing Override Ġ= Ġget Inherited Member Symbols Need ing Override () Ċĉ ĉ val Ġmembers Need ing Override Ġ= Ġget Member Symbols () Ċĉ ĉ for Ġ( symbol Ġin Ġmembers Need ing Override ) Ġ{ Ċĉĉ ĉ val Ġsymbol Name Ġ= Ġsymbol . name Ċĉĉ ĉ val Ġdeclaration Ġ= Ġsymbol . def Ċĉĉ ĉ val Ġnode With Override Ġ= Ġdeclaration Ġis ĠNode With Override Ċĉĉ ĉ val Ġhas Override Ġ= Ġ( declaration Ġas ? ĠNode With Override )?. has Override Ċĉĉ ĉ if Ġ( symbol Name Ġin Ġsymbols Need ing Override ) Ġ{ Ċĉĉĉ ĉ val Ġinherited Symbol Ġ= Ġsymbols Need ing Override . remove ( symbol Name ) Ċĉĉĉ ĉ if Ġ( node With Override Ġ&& Ġsymbol . type Ġ!= Ġinherited Symbol ?. type ) Ġ{ Ċĉĉĉĉ ĉ gro v lin File . add Error ( In compatible Override Type ( Ċĉĉĉĉĉĉ ĉ symbol . type , Ġinherited Symbol ?. type , Ġsymbol . def ?. position )) Ċĉĉĉ ĉ } Ċĉĉĉ ĉ if Ġ( node With Override Ġ&& Ġhas Override Ġ== Ġfalse ) Ġ{ Ċĉĉĉĉ ĉ gro v lin File . add Error ( Missing Override Keyword ( symbol Name , Ġsymbol . def ?. position )) Ċĉĉĉ ĉ } Ċĉĉ ĉ } Ġelse Ġ{ Ċĉĉĉ ĉ if Ġ( node With Override Ġ&& Ġhas Override Ġ== Ġtrue ) Ġ{ Ċĉĉĉĉ ĉ gro v lin File . add Error ( Overrides Nothing ( symbol Name , Ġsymbol . def ?. position )) Ċĉĉĉ ĉ } Ċĉĉ ĉ } Ċĉ ĉ } Ċ ĉ } ĊĊ ĉ fun Ġcheck Over riding Object Members ( gro v lin File : ĠGro v lin File ) Ġ{ Ċĉ ĉ val Ġsymbols Need ing Override Ġ= Ġget Inherited Member Symbols Need ing Override () Ċĉ ĉ val Ġmembers Need ing Override Ġ= Ġget Member Symbols () ĊĊĉ ĉ for Ġ( symbol Ġin Ġmembers Need ing Override ) Ġ{ Ċĉĉ ĉ val Ġsymbol Name Ġ= Ġsymbol . name Ċĉĉ ĉ val Ġdeclaration Ġ= Ġsymbol . def Ċĉĉ ĉ val Ġnode With Override Ġ= Ġdeclaration Ġis ĠNode With Override Ċĉĉ ĉ val Ġhas Override Ġ= Ġ( declaration Ġas ? ĠNode With Override )?. has Override Ċĉĉ ĉ if Ġ( symbol Name Ġin Ġsymbols Need ing Override ) Ġ{ Ċĉĉĉ ĉ val Ġinherited Symbol Ġ= Ġsymbols Need ing Override . remove ( symbol Name ) Ċĉĉĉ ĉ if Ġ( node With Override Ġ&& Ġsymbol . type Ġ!= Ġinherited Symbol ?. type ) Ġ{ Ċĉĉĉĉ ĉ gro v lin File . add Error ( In compatible Override Type ( Ċĉĉĉĉĉĉ ĉ symbol . type , Ġinherited Symbol ?. type , Ġsymbol . def ?. position )) Ċĉĉĉ ĉ } Ċĉĉĉ ĉ if Ġ( node With Override Ġ&& Ġhas Override Ġ== Ġfalse ) Ġ{ Ċĉĉĉĉ ĉ gro v lin File . add Error ( Missing Override Keyword ( symbol Name , Ġsymbol . def ?. position )) Ċĉĉĉ ĉ } Ċĉĉ ĉ } Ġelse Ġ{ Ċĉĉĉ ĉ if Ġ( node With Override Ġ&& Ġhas Override Ġ== Ġtrue ) Ġ{ Ċĉĉĉĉ ĉ gro v lin File . add Error ( Overrides Nothing ( symbol Name , Ġsymbol . def ?. position )) Ċĉĉĉ ĉ } Ċĉĉ ĉ } Ċĉ ĉ } Ċĉ ĉ symbols Need ing Override . values . forEach Ġ{ Ċĉĉ ĉ gro v lin File . add Error ( Member Not Over ridden ( it . name , Ġname , Ġdef ?. position )) Ċĉ ĉ } Ċ ĉ } ĊĊ ĉ fun ĠgetAll Extended Trait Symbols (): ĠList < Class Symbol > Ġ{ Ċĉ ĉ val Ġsymbols Ġ= ĠArrayList < Class Symbol >( trait Scopes ) Ċĉ ĉ for Ġ( trait Scope Ġin Ġtrait Scopes ) Ġ{ Ċĉĉ ĉ symbols Ġ+= Ġtrait Scope . getAll Extended Trait Symbols () Ċĉ ĉ } Ċĉ ĉ return Ġsymbols Ċ ĉ } ĊĊ ĉ override Ġfun ĠgetParent Scope (): ĠScope ? Ġ= Ġparent Scope Ġ?: Ġen closing Scope ĊĊ ĉ override Ġfun ĠtoString (): ĠString Ġ{ Ċĉ ĉ return Ġ"${ java Class . simple Name }( name =$ name , Ġmember Symbols =$ members )" Ċ ĉ } Ċ } Ċ