UObjectBaseUtility 继承于 UObjectBase

class COREUOBJECT_API UObjectBaseUtility : public UObjectBase
{
public:
	// Constructors.
	UObjectBaseUtility() {}
	UObjectBaseUtility( EObjectFlags InFlags )
		: UObjectBase(InFlags)
	{
	}

	/***********************/
	/******** Flags ********/
	/***********************/

	/** Flags 相关*/

	/** 设置flags*/
	FORCEINLINE void SetFlags( EObjectFlags NewFlags )
	{
		checkSlow(!(NewFlags & (RF_MarkAsNative | RF_MarkAsRootSet))); // These flags can't be used outside of constructors / internal code
		SetFlagsTo(GetFlags() | NewFlags);
	}
	/** 清除flags*/
	FORCEINLINE void ClearFlags( EObjectFlags NewFlags )
	{
		checkSlow(!(NewFlags & (RF_MarkAsNative | RF_MarkAsRootSet)) || NewFlags == RF_AllFlags); // These flags can't be used outside of constructors / internal code
		SetFlagsTo(GetFlags() & ~NewFlags);
	}

	/** 用于安全检查是否设置了任何传入的Flags。*/
	FORCEINLINE bool HasAnyFlags( EObjectFlags FlagsToCheck ) const
	{
		checkSlow(!(FlagsToCheck & (RF_MarkAsNative | RF_MarkAsRootSet)) || FlagsToCheck == RF_AllFlags); // These flags can't be used outside of constructors / internal code
		return (GetFlags() & FlagsToCheck) != 0;
	}

	/** 用于安全检查是否设置了任何所有传入的Flags。*/
	FORCEINLINE bool HasAllFlags( EObjectFlags FlagsToCheck ) const
	{
		checkSlow(!(FlagsToCheck & (RF_MarkAsNative | RF_MarkAsRootSet)) || FlagsToCheck == RF_AllFlags); // These flags can't be used outside of constructors / internal code
		return ((GetFlags() & FlagsToCheck) == FlagsToCheck);
	}

	/** 获取flags的标记 	Returns object flags that are both in the mask and set on the object.*/
	FORCEINLINE EObjectFlags GetMaskedFlags( EObjectFlags Mask = RF_AllFlags ) const
	{
		return EObjectFlags(GetFlags() & Mask);
	}

	/***********************/
	/******** Marks *******  UObjectMarks.cpp */
	/***********************/
	/** mark相关*/

	/** 为对象添加mark */
	FORCEINLINE voi