void UK2Node_FunctionEntry::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
UEdGraphPin* OldStartExecPin = nullptr;
if(Pins[0]->LinkedTo.Num())
{
OldStartExecPin = Pins[0]->LinkedTo[0];
}
UEdGraphPin* LastActiveOutputPin = Pins[0];
// Only look for FunctionEntry nodes who were duplicated and have a source object
if ( UK2Node_FunctionEntry* OriginalNode = Cast<UK2Node_FunctionEntry>(CompilerContext.MessageLog.FindSourceObject(this)) )
{
check(OriginalNode->GetOuter());
// Find the associated UFunction
UFunction* Function = FindField<UFunction>(CompilerContext.Blueprint->SkeletonGeneratedClass, *OriginalNode->GetOuter()->GetName());
for (TFieldIterator<UProperty> It(Function); It; ++It)
{
if (const UProperty* Property = *It)
{
for (auto& LocalVar : LocalVariables)
{
if (LocalVar.VarName == Property->GetFName() && !LocalVar.DefaultValue.IsEmpty())
{
// Add a variable set node for the local variable and hook it up immediately following the entry node or the last added local variable
UK2Node_VariableSet* VariableSetNode = CompilerContext.SpawnIntermediateNode<UK2Node_VariableSet>(this, SourceGraph);
VariableSetNode->SetFromProperty(Property, false);
Schema->ConfigureVarNode(VariableSetNode, LocalVar.VarName, Function, CompilerContext.Blueprint);
VariableSetNode->AllocateDefaultPins();
CompilerContext.MessageLog.NotifyIntermediateObjectCreation(VariableSetNode, this);
if(UEdGraphPin* SetPin = VariableSetNode->FindPin(Property->GetName()))
{
if(LocalVar.VarType.bIsArray)
{
TSharedPtr<FStructOnScope> StructData = MakeShareable(new FStructOnScope(Function));
FBlueprintEditorUtils::PropertyValueFromString(Property, LocalVar.DefaultValue, StructData->GetStructMemory());
// Create a Make Array node to setup the array's defaults
UK2Node_MakeArray* MakeArray = CompilerContext.SpawnIntermediateNode<UK2Node_MakeArray>(this, SourceGraph);
MakeArray->AllocateDefaultPins();
MakeArray->GetOutputPin()->MakeLinkTo(SetPin);
MakeArray->PostReconstructNode();
const UArrayProperty* ArrayProperty = Cast<UArrayProperty>(Property);
check(ArrayProperty);
FScriptArrayHelper_InContainer ArrayHelper(ArrayProperty, StructData->GetStructMemory());
FScriptArrayHelper_InContainer DefaultArrayHelper(ArrayProperty, StructData->GetStructMemory());
uint8* StructDefaults = NULL;
UStructProperty* StructProperty = dynamic_cast<UStructProperty*>(ArrayProperty->Inner);
if ( StructProperty != NULL )
{
checkSlow(StructProperty->Struct);
StructDefaults = (uint8*)FMemory::Malloc(StructProperty->Struct->GetStructureSize());
StructProperty->InitializeValue(StructDefaults);
}
// Go through each element in the array to set the default value
for( int32 ArrayIndex = 0 ; ArrayIndex < ArrayHelper.Num() ; ArrayIndex++ )
{
uint8* PropData = ArrayHelper.GetRawPtr(ArrayIndex);
// Always use struct defaults if the inner is a struct, for symmetry with the import of array inner struct defaults
uint8* PropDefault = ( StructProperty != NULL ) ? StructDefaults :
( ( StructData->GetStructMemory() && DefaultArrayHelper.Num() > ArrayIndex ) ? DefaultArrayHelper.GetRawPtr(ArrayIndex) : NULL );
// Retrieve the element's default value
FString DefaultValue;
FBlueprintEditorUtils::PropertyValueToString(ArrayProperty->Inner, PropData, DefaultValue);
if(ArrayIndex > 0)
{
MakeArray->AddInputPin();
}
// Add one to the index for the pin to set the default on to skip the output pin
Schema->TrySetDefaultValue(*MakeArray->Pins[ArrayIndex + 1], DefaultValue);
}
}
else
{
// Set the default value
Schema->TrySetDefaultValue(*SetPin, LocalVar.DefaultValue);
}
}
LastActiveOutputPin->BreakAllPinLinks();
LastActiveOutputPin->MakeLinkTo(VariableSetNode->Pins[0]);
LastActiveOutputPin = VariableSetNode->Pins[1];
}
}
}
}
// Finally, hook up the last node to the old node the function entry node was connected to
if(OldStartExecPin)
{
LastActiveOutputPin->MakeLinkTo(OldStartExecPin);
}
}
}
void UArrayProperty::ExportTextItem( FString& ValueStr, const void* PropertyValue, const void* DefaultValue, UObject* Parent, int32 PortFlags, UObject* ExportRootScope ) const
{
checkSlow(Inner);
FScriptArrayHelper ArrayHelper(this, PropertyValue);
FScriptArrayHelper DefaultArrayHelper(this, DefaultValue);
uint8* StructDefaults = NULL;
UStructProperty* StructProperty = Cast<UStructProperty>(Inner);
if ( StructProperty != NULL )
{
checkSlow(StructProperty->Struct);
StructDefaults = (uint8*)FMemory::Malloc(StructProperty->Struct->GetStructureSize());
StructProperty->InitializeValue(StructDefaults);
}
const bool bReadableForm = (0 != (PPF_BlueprintDebugView & PortFlags));
int32 Count = 0;
for( int32 i=0; i<ArrayHelper.Num(); i++ )
{
++Count;
if(!bReadableForm)
{
if ( Count == 1 )
{
ValueStr += TCHAR('(');
}
else
{
ValueStr += TCHAR(',');
}
}
else
{
if(Count > 1)
{
ValueStr += TCHAR('\n');
}
ValueStr += FString::Printf(TEXT("[%i] "), i);
}
uint8* PropData = ArrayHelper.GetRawPtr(i);
uint8* PropDefault = (DefaultValue && DefaultArrayHelper.Num() > i)
? DefaultArrayHelper.GetRawPtr(i)
: StructDefaults;
// Do not re-export duplicate data from superclass when exporting to .int file
if ( (PortFlags & PPF_LocalizedOnly) != 0 && Inner->Identical(PropData, PropDefault) )
{
continue;
}
Inner->ExportTextItem( ValueStr, PropData, PropDefault, Parent, PortFlags|PPF_Delimited, ExportRootScope );
}
if ((Count > 0) && !bReadableForm)
{
ValueStr += TEXT(")");
}
if (StructDefaults)
{
StructProperty->DestroyValue(StructDefaults);
FMemory::Free(StructDefaults);
}
}
/**
* Exports the property values for the specified object as text to the output device.
*
* @param Context Context from which the set of 'inner' objects is extracted. If NULL, an object iterator will be used.
* @param Out the output device to send the exported text to
* @param ObjectClass the class of the object to dump properties for
* @param Object the address of the object to dump properties for
* @param Indent number of spaces to prepend to each line of output
* @param DiffClass the class to use for comparing property values when delta export is desired.
* @param Diff the address of the object to use for determining whether a property value should be exported. If the value in Object matches the corresponding
* value in Diff, it is not exported. Specify NULL to export all properties.
* @param Parent the UObject corresponding to Object
* @param PortFlags flags used for modifying the output and/or behavior of the export
*/
void ExportProperties
(
const FExportObjectInnerContext* Context,
FOutputDevice& Out,
UClass* ObjectClass,
uint8* Object,
int32 Indent,
UClass* DiffClass,
uint8* Diff,
UObject* Parent,
uint32 PortFlags,
UObject* ExportRootScope
)
{
FString ThisName = TEXT("(none)");
check(ObjectClass != NULL);
for( UProperty* Property = ObjectClass->PropertyLink; Property; Property = Property->PropertyLinkNext )
{
if (!Property->ShouldPort(PortFlags))
continue;
ThisName = Property->GetName();
UArrayProperty* ArrayProperty = Cast<UArrayProperty>(Property);
UObjectPropertyBase* ExportObjectProp = (Property->PropertyFlags & CPF_ExportObject) != 0 ? Cast<UObjectPropertyBase>(Property) : NULL;
const uint32 ExportFlags = PortFlags | PPF_Delimited;
if ( ArrayProperty != NULL )
{
// Export dynamic array.
UProperty* InnerProp = ArrayProperty->Inner;
ExportObjectProp = (Property->PropertyFlags & CPF_ExportObject) != 0 ? Cast<UObjectPropertyBase>(InnerProp) : NULL;
// This is used as the default value in the case of an array property that has
// fewer elements than the exported object.
uint8* StructDefaults = NULL;
UStructProperty* StructProperty = Cast<UStructProperty>(InnerProp);
if ( StructProperty != NULL )
{
checkSlow(StructProperty->Struct);
StructDefaults = (uint8*)FMemory::Malloc(StructProperty->Struct->GetStructureSize());
StructProperty->InitializeValue(StructDefaults);
}
for( int32 PropertyArrayIndex=0; PropertyArrayIndex<Property->ArrayDim; PropertyArrayIndex++ )
{
void* Arr = Property->ContainerPtrToValuePtr<void>(Object, PropertyArrayIndex);
FScriptArrayHelper ArrayHelper(ArrayProperty, Arr);
void* DiffArr = NULL;
if( DiffClass )
{
DiffArr = Property->ContainerPtrToValuePtrForDefaults<void>(DiffClass, Diff, PropertyArrayIndex);
}
// we won't use this if DiffArr is NULL, but we have to set it up to something
FScriptArrayHelper DiffArrayHelper(ArrayProperty, DiffArr);
bool bAnyElementDiffered = false;
for( int32 DynamicArrayIndex=0; DynamicArrayIndex<ArrayHelper.Num(); DynamicArrayIndex++ )
{
FString Value;
// compare each element's value manually so that elements which match the NULL value for the array's inner property type
// but aren't in the diff array are still exported
uint8* SourceData = ArrayHelper.GetRawPtr(DynamicArrayIndex);
uint8* DiffData = DiffArr && DynamicArrayIndex < DiffArrayHelper.Num()
? DiffArrayHelper.GetRawPtr(DynamicArrayIndex)
: StructDefaults;
bool bExportItem = DiffData == NULL || (DiffData != SourceData && !InnerProp->Identical(SourceData, DiffData, ExportFlags));
if ( bExportItem )
{
bAnyElementDiffered = true;
InnerProp->ExportTextItem(Value, SourceData, DiffData, Parent, ExportFlags, ExportRootScope);
if(ExportObjectProp)
{
UObject* Obj = ExportObjectProp->GetObjectPropertyValue(ArrayHelper.GetRawPtr(DynamicArrayIndex));
check(!Obj || Obj->IsValidLowLevel());
if( Obj && !Obj->HasAnyMarks(OBJECTMARK_TagImp) )
{
// only export the BEGIN OBJECT block for a component if Parent is the component's Outer....when importing subobject definitions,
// (i.e. BEGIN OBJECT), whichever BEGIN OBJECT block a component's BEGIN OBJECT block is located within is the object that will be
// used as the Outer to create the component
// Is this an array of components?
if ( InnerProp->HasAnyPropertyFlags(CPF_InstancedReference) )
{
if ( Obj->GetOuter() == Parent )
{
// Don't export more than once.
Obj->Mark(OBJECTMARK_TagImp);
UExporter::ExportToOutputDevice( Context, Obj, NULL, Out, TEXT("T3D"), Indent, PortFlags );
}
else
{
// set the OBJECTMARK_TagExp flag so that the calling code knows we wanted to export this object
Obj->Mark(OBJECTMARK_TagExp);
}
}
else
{
// Don't export more than once.
Obj->Mark(OBJECTMARK_TagImp);
UExporter::ExportToOutputDevice( Context, Obj, NULL, Out, TEXT("T3D"), Indent, PortFlags );
}
}
}
Out.Logf( TEXT("%s%s(%i)=%s\r\n"), FCString::Spc(Indent), *Property->GetName(), DynamicArrayIndex, *Value );
}
// if some other element has already been determined to differ from the defaults, then export this item with no data so that
// the different array's size is maintained on import (this item will get the default values for that index, if any)
// however, if no elements of the array have changed, we still don't want to export anything
// so that the array size will also be taken from the defaults, which won't be the case if any element is exported
else if (bAnyElementDiffered)
{
Out.Logf( TEXT("%s%s(%i)=()\r\n"), FCString::Spc(Indent), *Property->GetName(), DynamicArrayIndex );
}
}
}
if (StructDefaults)
{
StructProperty->DestroyValue(StructDefaults);
FMemory::Free(StructDefaults);
}
}
else
{
for( int32 PropertyArrayIndex=0; PropertyArrayIndex<Property->ArrayDim; PropertyArrayIndex++ )
{
FString Value;
// Export single element.
uint8* DiffData = (DiffClass && Property->IsInContainer(DiffClass->GetPropertiesSize())) ? Diff : NULL;
if( Property->ExportText_InContainer( PropertyArrayIndex, Value, Object, DiffData, Parent, ExportFlags, ExportRootScope ) )
{
if ( ExportObjectProp )
{
UObject* Obj = ExportObjectProp->GetObjectPropertyValue(Property->ContainerPtrToValuePtr<void>(Object, PropertyArrayIndex));
if( Obj && !Obj->HasAnyMarks(OBJECTMARK_TagImp) )
{
// only export the BEGIN OBJECT block for a component if Parent is the component's Outer....when importing subobject definitions,
// (i.e. BEGIN OBJECT), whichever BEGIN OBJECT block a component's BEGIN OBJECT block is located within is the object that will be
// used as the Outer to create the component
if ( Property->HasAnyPropertyFlags(CPF_InstancedReference) )
{
if ( Obj->GetOuter() == Parent )
{
// Don't export more than once.
Obj->Mark(OBJECTMARK_TagImp);
UExporter::ExportToOutputDevice( Context, Obj, NULL, Out, TEXT("T3D"), Indent, PortFlags );
}
else
{
// set the OBJECTMARK_TagExp flag so that the calling code knows we wanted to export this object
Obj->Mark(OBJECTMARK_TagExp);
}
}
else
{
// Don't export more than once.
Obj->Mark(OBJECTMARK_TagImp);
UExporter::ExportToOutputDevice( Context, Obj, NULL, Out, TEXT("T3D"), Indent, PortFlags );
}
}
}
if( Property->ArrayDim == 1 )
{
Out.Logf( TEXT("%s%s=%s\r\n"), FCString::Spc(Indent), *Property->GetName(), *Value );
}
else
{
Out.Logf( TEXT("%s%s(%i)=%s\r\n"), FCString::Spc(Indent), *Property->GetName(), PropertyArrayIndex, *Value );
}
}
}
}
}
// Allows to import/export C++ properties in case the automatic unreal script mesh wouldn't work.
Parent->ExportCustomProperties(Out, Indent);
}
void UArrayProperty::ExportTextItem( FString& ValueStr, const void* PropertyValue, const void* DefaultValue, UObject* Parent, int32 PortFlags, UObject* ExportRootScope ) const
{
checkSlow(Inner);
if (0 != (PortFlags & PPF_ExportCpp))
{
FString ExtendedTypeText;
FString TypeText = GetCPPType(&ExtendedTypeText, EPropertyExportCPPFlags::CPPF_BlueprintCppBackend);
ValueStr += FString::Printf(TEXT("%s%s()"), *TypeText, *ExtendedTypeText);
return;
}
FScriptArrayHelper ArrayHelper(this, PropertyValue);
FScriptArrayHelper DefaultArrayHelper(this, DefaultValue);
uint8* StructDefaults = NULL;
UStructProperty* StructProperty = dynamic_cast<UStructProperty*>(Inner);
if ( StructProperty != NULL )
{
checkSlow(StructProperty->Struct);
StructDefaults = (uint8*)FMemory::Malloc(StructProperty->Struct->GetStructureSize());
StructProperty->InitializeValue(StructDefaults);
}
const bool bReadableForm = (0 != (PPF_BlueprintDebugView & PortFlags));
int32 Count = 0;
for( int32 i=0; i<ArrayHelper.Num(); i++ )
{
++Count;
if(!bReadableForm)
{
if ( Count == 1 )
{
ValueStr += TCHAR('(');
}
else
{
ValueStr += TCHAR(',');
}
}
else
{
if(Count > 1)
{
ValueStr += TCHAR('\n');
}
ValueStr += FString::Printf(TEXT("[%i] "), i);
}
uint8* PropData = ArrayHelper.GetRawPtr(i);
// Always use struct defaults if the inner is a struct, for symmetry with the import of array inner struct defaults
uint8* PropDefault = ( StructProperty != NULL ) ? StructDefaults :
( ( DefaultValue && DefaultArrayHelper.Num() > i ) ? DefaultArrayHelper.GetRawPtr(i) : NULL );
Inner->ExportTextItem( ValueStr, PropData, PropDefault, Parent, PortFlags|PPF_Delimited, ExportRootScope );
}
if ((Count > 0) && !bReadableForm)
{
ValueStr += TEXT(")");
}
if (StructDefaults)
{
StructProperty->DestroyValue(StructDefaults);
FMemory::Free(StructDefaults);
}
}