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UDS: Default value propagation fix.

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#codereview Nick.Whiting, Robert.Manuszewski

[CL 2228481 by Maciej Mroz in Main branch]
This commit is contained in:
Maciej Mroz
2014-07-23 10:35:57 -04:00
committed by UnrealBot
parent caa43f773a
commit 2756003e4e
1 changed files with 4 additions and 1 deletions
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5
Engine/Source/Runtime/Engine/Private/UserDefinedStruct.cpp
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@@ -62,18 +62,21 @@ void UUserDefinedStruct::SerializeTaggedProperties(FArchive& Ar, uint8* Data, US
auto UDDefaultsStruct = Cast<UUserDefinedStruct>(DefaultsStruct);
const bool bDuplicate = (0 != (Ar.GetPortFlags() & PPF_Duplicate));
/* When saving delta, we want the difference between current data and true structure's default values.
When Defaults is NULL then zeroed data will be used for comparison.*/
const bool bUseNewDefaults = !Defaults
&& UDDefaultsStruct
&& Ar.DoDelta()
&& Ar.IsSaving()
&& (0 == (Ar.GetPortFlags() & PPF_Duplicate))
&& !bDuplicate
&& !Ar.IsCooking();
/* Object serialized from delta will have missing properties filled with zeroed data,
we want structure's default data instead */
const bool bLoadDefaultFirst = UDDefaultsStruct
&& !bDuplicate
&& Ar.IsLoading()
&& Ar.IsPersistent();