mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-01 15:11:24 +00:00
00e08fcaa0
Add header guards to files that were missing guards. Remove #endif comments as they don't seem common in LLVM (we can easily add them back if we decide they're useful) Changes made by clang-tidy with minor tweaks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215558 91177308-0d34-0410-b5e6-96231b3b80d8
107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
//==-- llvm/ADT/ilist_node.h - Intrusive Linked List Helper ------*- C++ -*-==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the ilist_node class template, which is a convenient
|
|
// base class for creating classes that can be used with ilists.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ADT_ILIST_NODE_H
|
|
#define LLVM_ADT_ILIST_NODE_H
|
|
|
|
namespace llvm {
|
|
|
|
template<typename NodeTy>
|
|
struct ilist_traits;
|
|
|
|
/// ilist_half_node - Base class that provides prev services for sentinels.
|
|
///
|
|
template<typename NodeTy>
|
|
class ilist_half_node {
|
|
friend struct ilist_traits<NodeTy>;
|
|
NodeTy *Prev;
|
|
protected:
|
|
NodeTy *getPrev() { return Prev; }
|
|
const NodeTy *getPrev() const { return Prev; }
|
|
void setPrev(NodeTy *P) { Prev = P; }
|
|
ilist_half_node() : Prev(nullptr) {}
|
|
};
|
|
|
|
template<typename NodeTy>
|
|
struct ilist_nextprev_traits;
|
|
|
|
/// ilist_node - Base class that provides next/prev services for nodes
|
|
/// that use ilist_nextprev_traits or ilist_default_traits.
|
|
///
|
|
template<typename NodeTy>
|
|
class ilist_node : private ilist_half_node<NodeTy> {
|
|
friend struct ilist_nextprev_traits<NodeTy>;
|
|
friend struct ilist_traits<NodeTy>;
|
|
NodeTy *Next;
|
|
NodeTy *getNext() { return Next; }
|
|
const NodeTy *getNext() const { return Next; }
|
|
void setNext(NodeTy *N) { Next = N; }
|
|
protected:
|
|
ilist_node() : Next(nullptr) {}
|
|
|
|
public:
|
|
/// @name Adjacent Node Accessors
|
|
/// @{
|
|
|
|
/// \brief Get the previous node, or 0 for the list head.
|
|
NodeTy *getPrevNode() {
|
|
NodeTy *Prev = this->getPrev();
|
|
|
|
// Check for sentinel.
|
|
if (!Prev->getNext())
|
|
return nullptr;
|
|
|
|
return Prev;
|
|
}
|
|
|
|
/// \brief Get the previous node, or 0 for the list head.
|
|
const NodeTy *getPrevNode() const {
|
|
const NodeTy *Prev = this->getPrev();
|
|
|
|
// Check for sentinel.
|
|
if (!Prev->getNext())
|
|
return nullptr;
|
|
|
|
return Prev;
|
|
}
|
|
|
|
/// \brief Get the next node, or 0 for the list tail.
|
|
NodeTy *getNextNode() {
|
|
NodeTy *Next = getNext();
|
|
|
|
// Check for sentinel.
|
|
if (!Next->getNext())
|
|
return nullptr;
|
|
|
|
return Next;
|
|
}
|
|
|
|
/// \brief Get the next node, or 0 for the list tail.
|
|
const NodeTy *getNextNode() const {
|
|
const NodeTy *Next = getNext();
|
|
|
|
// Check for sentinel.
|
|
if (!Next->getNext())
|
|
return nullptr;
|
|
|
|
return Next;
|
|
}
|
|
|
|
/// @}
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|