79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Serialization/ArchiveShowReferences.h"
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#include "Templates/Casts.h"
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/*----------------------------------------------------------------------------
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FArchiveShowReferences.
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----------------------------------------------------------------------------*/
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/**
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* Constructor
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*
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* @param inOutputAr archive to use for logging results
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* @param LimitOuter only consider objects that have this object as its Outer
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* @param inTarget object to show referencers to
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* @param inExclude list of objects that should be ignored if encountered while serializing Target
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*/
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FArchiveShowReferences::FArchiveShowReferences(FOutputDevice& inOutputAr, UObject* inOuter, UObject* inSource, TArray<UObject*>& inExclude)
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: SourceObject(inSource), SourceOuter(inOuter), OutputAr(inOutputAr), Exclude(inExclude), DidRef(false)
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{
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ArIsObjectReferenceCollector = true;
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// there are several types of objects we don't want listed, for different reasons.
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// Prevent them from being logged by adding them to our Found list before we start
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// serialization, so that they won't be listed
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// quick sanity check
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check(SourceObject);
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check(SourceObject->IsValidLowLevel());
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// every object we serialize obviously references our package
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Found.AddUnique(SourceOuter);
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// every object we serialize obviously references its class and its class's parent classes
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for (UClass* ObjectClass = SourceObject->GetClass(); ObjectClass; ObjectClass = ObjectClass->GetSuperClass())
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{
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Found.AddUnique(ObjectClass);
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}
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// similarly, if the object is a class, they all obviously reference their parent classes
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if (UClass* SourceObjectClass = dynamic_cast<UClass*>(SourceObject))
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{
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for (UClass* ParentClass = SourceObjectClass->GetSuperClass(); ParentClass; ParentClass = ParentClass->GetSuperClass())
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{
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Found.AddUnique(ParentClass);
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}
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}
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// OK, now we're all set to go - let's see what Target is referencing.
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SourceObject->Serialize(*this);
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}
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FArchive& FArchiveShowReferences::operator<<(UObject*& Obj)
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{
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if (Obj && Obj->GetOuter() != SourceOuter)
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{
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int32 i;
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for (i = 0; i < Exclude.Num(); i++)
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{
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if (Exclude[i] == Obj->GetOuter())
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{
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break;
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}
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}
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if (i == Exclude.Num())
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{
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if (!DidRef)
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{
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OutputAr.Logf(TEXT(" %s references:"), *Obj->GetFullName());
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}
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OutputAr.Logf(TEXT(" %s"), *Obj->GetFullName());
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DidRef = 1;
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}
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}
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return *this;
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}
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