CRTP template for special wrapper types that are allowed to be passed in as 'None' function arguments and can be resolved by some global mechanic if so. More...

#include "Bindings/Python/NanobindUtils.h"

Inheritance diagram for mlir::python::Defaulting< DerivedTy, T >:

Public Types
using	ReferrentTy = T

Public Member Functions
	Defaulting ()=default
	Type casters require the type to be default constructible, but using such an instance is illegal. More...

	Defaulting (ReferrentTy &referrent)

ReferrentTy *	get () const

ReferrentTy *	operator-> ()

Detailed Description

template<typename DerivedTy, typename T>
class mlir::python::Defaulting< DerivedTy, T >

CRTP template for special wrapper types that are allowed to be passed in as 'None' function arguments and can be resolved by some global mechanic if so.

Such types will raise an error if this global resolution fails, and it is actually illegal for them to ever be unresolved. From a user perspective, they behave like a smart ptr to the underlying type (i.e. 'get' method and operator-> overloaded).

Derived types must provide a method, which is called when an environmental resolution is required. It must raise an exception if resolution fails: static ReferrentTy &resolve()

They must also provide a parameter description that will be used in error messages about mismatched types: static constexpr const char kTypeDescription[] = "<Description>";

Definition at line 47 of file NanobindUtils.h.