Allow autoconversion from ilist_iterator<T> to T* in a dyn_cast and friends

llvm-svn: 5862
This commit is contained in:
Chris Lattner 2003-04-23 16:17:53 +00:00
parent 215b00589f
commit ecb0bac0ec
1 changed files with 20 additions and 0 deletions

View File

@ -151,6 +151,26 @@ public:
pointer getNodePtrUnchecked() const { return NodePtr; }
};
// Allow ilist_iterators to convert into pointers to a node automatically when
// used by the dyn_cast, cast, isa mechanisms...
template<typename From> struct simplify_type;
template<typename NodeTy> struct simplify_type<ilist_iterator<NodeTy> > {
typedef NodeTy* SimpleType;
static SimpleType getSimplifiedValue(const ilist_iterator<NodeTy> &Node) {
return &*Node;
}
};
template<typename NodeTy> struct simplify_type<const ilist_iterator<NodeTy> > {
typedef NodeTy* SimpleType;
static SimpleType getSimplifiedValue(const ilist_iterator<NodeTy> &Node) {
return &*Node;
}
};
//===----------------------------------------------------------------------===//
//