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make traits more flexible by splitting out node-related fragment

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llvm-svn: 65690
This commit is contained in:
Gabor Greif 2009-02-28 10:17:32 +00:00
parent 9c3ce7905e
commit 5d9be2cffd
1 changed files with 17 additions and 9 deletions
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26
include/llvm/ADT/ilist.h
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@ -69,21 +69,29 @@ struct ilist_sentinel_traits {
static void destroySentinel(NodeTy *N) { delete N; }
};
/// ilist_node_traits - A fragment for template traits for intrusive list
/// that provides default node related operations.
///
template<typename NodeTy>
struct ilist_node_traits {
static NodeTy *createNode(const NodeTy &V) { return new NodeTy(V); }
static void deleteNode(NodeTy *V) { delete V; }
void addNodeToList(NodeTy *) {}
void removeNodeFromList(NodeTy *) {}
void transferNodesFromList(ilist_node_traits & /*SrcTraits*/,
ilist_iterator<NodeTy> /*first*/,
ilist_iterator<NodeTy> /*last*/) {}
};
/// ilist_default_traits - Default template traits for intrusive list.
/// By inheriting from this, you can easily use default implementations
/// for all common operations.
///
template<typename NodeTy>
struct ilist_default_traits : ilist_nextprev_traits<NodeTy>,
ilist_sentinel_traits<NodeTy> {
static NodeTy *createNode(const NodeTy &V) { return new NodeTy(V); }
static void deleteNode(NodeTy *V) { delete V; }
void addNodeToList(NodeTy *) {}
void removeNodeFromList(NodeTy *) {}
void transferNodesFromList(ilist_default_traits & /*SrcTraits*/,
ilist_iterator<NodeTy> /*first*/,
ilist_iterator<NodeTy> /*last*/) {}
ilist_sentinel_traits<NodeTy>,
ilist_node_traits<NodeTy> {
};
// Template traits for intrusive list. By specializing this template class, you