llvm::detail::PointerSumTypeHelper< TagT, MemberTs > Struct Template Reference

A helper template for implementing PointerSumType. More...

#include "llvm/ADT/PointerSumType.h"

Inheritance diagram for llvm::detail::PointerSumTypeHelper< TagT, MemberTs >:

Classes
struct	Lookup

Public Types
enum	: uint64_t { PointerMask = static_cast<uint64_t>(-1) << NumTagBits , TagMask = ~PointerMask }

Static Public Member Functions
template<TagT N, typename PointerT, typename TraitsT>
static PointerSumTypeMember< N, PointerT, TraitsT >	LookupOverload (PointerSumTypeMember< N, PointerT, TraitsT > *)
template<TagT N>
static void	LookupOverload (...)

Static Public Attributes
static constexpr int	NumTagBits
static constexpr TagT	MinTag

Detailed Description

template<typename TagT, typename... MemberTs>
struct llvm::detail::PointerSumTypeHelper< TagT, MemberTs >

A helper template for implementing PointerSumType.

It provides fast compile-time lookup of the member from a particular tag value, along with useful constants and compile time checking infrastructure..

Definition at line 207 of file PointerSumType.h.

Member Enumeration Documentation

anonymous enum

template<typename TagT, typename... MemberTs>

anonymous enum : uint64_t

Enumerator
PointerMask
TagMask

Definition at line 237 of file PointerSumType.h.

Member Function Documentation

LookupOverload() [1/2]

template<typename TagT, typename... MemberTs>

template<TagT N>

void llvm::detail::PointerSumTypeHelper< TagT, MemberTs >::LookupOverload ( ... )

static

LookupOverload() [2/2]

template<typename TagT, typename... MemberTs>

template<TagT N, typename PointerT, typename TraitsT>

PointerSumTypeMember< N, PointerT, TraitsT > llvm::detail::PointerSumTypeHelper< TagT, MemberTs >::LookupOverload ( PointerSumTypeMember< N, PointerT, TraitsT > * )

static

Member Data Documentation

MinTag

template<typename TagT, typename... MemberTs>

TagT llvm::detail::PointerSumTypeHelper< TagT, MemberTs >::MinTag

staticconstexpr

Initial value:

=
      static_cast<TagT>(std::min({static_cast<TagT>(MemberTs::Tag)...}))

Definition at line 235 of file PointerSumType.h.

NumTagBits

template<typename TagT, typename... MemberTs>

int llvm::detail::PointerSumTypeHelper< TagT, MemberTs >::NumTagBits

staticconstexpr

Initial value:

=
      std::min({MemberTs::TraitsT::NumLowBitsAvailable...})

Definition at line 231 of file PointerSumType.h.

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

• include/llvm/ADT/PointerSumType.h