UE::MakeInheritedContextExtension

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Overloads

UE::MakeInheritedContextExtension()

Description

Creates an FInheritedContextExtension for a getter/setter API. Use when the variable is not directly accessible (e.g. accessed through IsSavingPackage()/SetIsSavingPackage()). Getter and Setter are compile-time function pointers baked into the generated callbacks.

Usage: static FInheritedContextExtension GExt = MakeInheritedContextExtension<&UE::IsSavingPackage, &UE::SetIsSavingPackage>();

namespace UE  
{  
    template<auto Getter, auto Setter>  
    FInheritedContextExtension UE::MakeInheritedContextExtension()  
}  
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namespace UE {     template<auto Getter, auto Setter>     FInheritedContextExtension UE::MakeInheritedContextExtension() }

UE::MakeInheritedContextExtension(Func)

Description

Creates an FInheritedContextExtension for a variable accessed through a callable. The callable is invoked on the current thread each time, so this works correctly with thread_local variables. Captures by copy-constructing, applies by assignment. Equivalent to TGuardValue propagation. The callable must return an lvalue reference and must be convertible to a function pointer (i.e. non-capturing lambda or free function).

Usage: static FInheritedContextExtension GMyFlagExt = MakeInheritedContextExtension([]() -> bool& { return GMyFlag; });

namespace UE  
{  
    template<typename Func>  
    FInheritedContextExtension UE::MakeInheritedContextExtension  
    (  
        Func GetVar  
    )  
}  
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namespace UE {     template<typename Func>     FInheritedContextExtension UE::MakeInheritedContextExtension     (         Func GetVar     ) }