65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Serialization/ArchiveFindCulprit.h"
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#include "UObject/ObjectMacros.h"
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#include "UObject/Object.h"
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/*----------------------------------------------------------------------------
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FArchiveFindCulprit.
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----------------------------------------------------------------------------*/
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/**
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* Constructor
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*
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* @param InFind the object that we'll be searching for references to
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* @param Src the object to serialize which may contain a reference to InFind
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* @param InPretendSaving if true, marks the archive as saving and persistent, so that a different serialization codepath is followed
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*/
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FArchiveFindCulprit::FArchiveFindCulprit(UObject* InFind, UObject* Src, bool InPretendSaving)
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: Find(InFind), Count(0), PretendSaving(InPretendSaving)
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{
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// use the optimized RefLink to skip over properties which don't contain object references
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ArIsObjectReferenceCollector = true;
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// Outers are relevant as subobjects end up tagged incorrectly
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ArIgnoreOuterRef = false;
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if (PretendSaving)
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{
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this->SetIsSaving(true);
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this->SetIsPersistent(true);
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}
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Src->Serialize(*this);
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}
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FArchive& FArchiveFindCulprit::operator<<(UObject*& Obj)
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{
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if (Obj == Find)
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{
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if (GetSerializedProperty() != nullptr)
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{
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Referencers.AddUnique(GetSerializedProperty());
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}
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Count++;
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}
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if (PretendSaving && Obj && !Obj->IsPendingKill())
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{
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if ((!Obj->HasAnyFlags(RF_Transient) || Obj->HasAnyFlags(RF_Public)) && !Obj->HasAnyMarks(OBJECTMARK_TagExp))
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{
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if (Obj->HasAnyFlags(RF_Standalone) || Obj->HasAnyInternalFlags(EInternalObjectFlags::Native | EInternalObjectFlags::RootSet))
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{
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// serialize the object's Outer if this object could potentially be rooting the object we're attempting to find references to
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// otherwise, it's just spam
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UObject* Outer = Obj->GetOuter();
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*this << Outer;
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}
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// serialize the object's ObjectArchetype
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UObject* ObjectArchetype = Obj->GetArchetype();
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*this << ObjectArchetype;
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}
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}
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return *this;
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}
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