llvm::ConstStrippingForwardingCast< To, From, ForwardTo > Struct Template Reference

Provides a cast trait that strips const from types to make it easier to implement a const-version of a non-const cast. More...

#include "llvm/Support/Casting.h"

Inheritance diagram for llvm::ConstStrippingForwardingCast< To, From, ForwardTo >:

Public Types
using	DecayedFrom = std::remove_cv_t<std::remove_pointer_t<From>>
using	NonConstFrom

Static Public Member Functions
static bool	isPossible (const From &f)
static decltype(auto)	castFailed ()
static decltype(auto)	doCast (const From &f)
static decltype(auto)	doCastIfPossible (const From &f)

Detailed Description

template<typename To, typename From, typename ForwardTo>
struct llvm::ConstStrippingForwardingCast< To, From, ForwardTo >

Provides a cast trait that strips const from types to make it easier to implement a const-version of a non-const cast.

It just removes boilerplate and reduces the amount of code you as the user need to implement. You can use it like this:

template<> struct CastInfo<foo, bar> { ...verbose implementation... };

template<> struct CastInfo<foo, const bar> : public ConstStrippingForwardingCast<foo, const bar, CastInfo<foo, bar>> {};

Definition at line 388 of file Casting.h.

Member Typedef Documentation

DecayedFrom

template<typename To, typename From, typename ForwardTo>

using llvm::ConstStrippingForwardingCast< To, From, ForwardTo >::DecayedFrom = std::remove_cv_t<std::remove_pointer_t<From>>

Definition at line 390 of file Casting.h.

NonConstFrom

template<typename To, typename From, typename ForwardTo>

using llvm::ConstStrippingForwardingCast< To, From, ForwardTo >::NonConstFrom

Initial value:

 
      std::conditional_t<std::is_pointer_v<From>, DecayedFrom *, DecayedFrom &>

Definition at line 392 of file Casting.h.

Member Function Documentation

castFailed()

template<typename To, typename From, typename ForwardTo>

decltype(auto) llvm::ConstStrippingForwardingCast< To, From, ForwardTo >::castFailed ( )

inlinestatic

Definition at line 399 of file Casting.h.

doCast()

template<typename To, typename From, typename ForwardTo>

decltype(auto) llvm::ConstStrippingForwardingCast< To, From, ForwardTo >::doCast ( const From & f )

inlinestatic

Definition at line 401 of file Casting.h.

doCastIfPossible()

template<typename To, typename From, typename ForwardTo>

decltype(auto) llvm::ConstStrippingForwardingCast< To, From, ForwardTo >::doCastIfPossible ( const From & f )

inlinestatic

Definition at line 405 of file Casting.h.

isPossible()

template<typename To, typename From, typename ForwardTo>

bool llvm::ConstStrippingForwardingCast< To, From, ForwardTo >::isPossible ( const From & f )

inlinestatic

Definition at line 395 of file Casting.h.

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The documentation for this struct was generated from the following file:

• include/llvm/Support/Casting.h