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-rw-r--r--include/llvm/SymbolTableListTraits.h78
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diff --git a/include/llvm/SymbolTableListTraits.h b/include/llvm/SymbolTableListTraits.h
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--- a/include/llvm/SymbolTableListTraits.h
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-//===-- llvm/SymbolTableListTraits.h - Traits for iplist --------*- 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 a generic class that is used to implement the automatic
-// symbol table manipulation that occurs when you put (for example) a named
-// instruction into a basic block.
-//
-// The way that this is implemented is by using a special traits class with the
-// intrusive list that makes up the list of instructions in a basic block. When
-// a new element is added to the list of instructions, the traits class is
-// notified, allowing the symbol table to be updated.
-//
-// This generic class implements the traits class. It must be generic so that
-// it can work for all uses it, which include lists of instructions, basic
-// blocks, arguments, functions, global variables, etc...
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SYMBOLTABLELISTTRAITS_H
-#define LLVM_SYMBOLTABLELISTTRAITS_H
-
-#include "llvm/ADT/ilist.h"
-
-namespace llvm {
-class ValueSymbolTable;
-
-template<typename NodeTy> class ilist_iterator;
-template<typename NodeTy, typename Traits> class iplist;
-template<typename Ty> struct ilist_traits;
-
-// ValueSubClass - The type of objects that I hold, e.g. Instruction.
-// ItemParentClass - The type of object that owns the list, e.g. BasicBlock.
-//
-template<typename ValueSubClass, typename ItemParentClass>
-class SymbolTableListTraits : public ilist_default_traits<ValueSubClass> {
- typedef ilist_traits<ValueSubClass> TraitsClass;
-public:
- SymbolTableListTraits() {}
-
- /// getListOwner - Return the object that owns this list. If this is a list
- /// of instructions, it returns the BasicBlock that owns them.
- ItemParentClass *getListOwner() {
- size_t Offset(size_t(&((ItemParentClass*)0->*ItemParentClass::
- getSublistAccess(static_cast<ValueSubClass*>(0)))));
- iplist<ValueSubClass>* Anchor(static_cast<iplist<ValueSubClass>*>(this));
- return reinterpret_cast<ItemParentClass*>(reinterpret_cast<char*>(Anchor)-
- Offset);
- }
-
- static iplist<ValueSubClass> &getList(ItemParentClass *Par) {
- return Par->*(Par->getSublistAccess((ValueSubClass*)0));
- }
-
- static ValueSymbolTable *getSymTab(ItemParentClass *Par) {
- return Par ? toPtr(Par->getValueSymbolTable()) : 0;
- }
-
- void addNodeToList(ValueSubClass *V);
- void removeNodeFromList(ValueSubClass *V);
- void transferNodesFromList(ilist_traits<ValueSubClass> &L2,
- ilist_iterator<ValueSubClass> first,
- ilist_iterator<ValueSubClass> last);
-//private:
- template<typename TPtr>
- void setSymTabObject(TPtr *, TPtr);
- static ValueSymbolTable *toPtr(ValueSymbolTable *P) { return P; }
- static ValueSymbolTable *toPtr(ValueSymbolTable &R) { return &R; }
-};
-
-} // End llvm namespace
-
-#endif