Hide the state of TinyPtrVector and remove the single element constructor.

There is no reason for this state to be exposed as public. The single element
constructor was superfulous in light of the single element ArrayRef
constructor.

llvm-svn: 226424
This commit is contained in:
Michael Gottesman 2015-01-19 02:09:54 +00:00
parent 44b21749b9
commit 4125886b38
1 changed files with 11 additions and 7 deletions

View File

@ -25,11 +25,14 @@ namespace llvm {
template <typename EltTy>
class TinyPtrVector {
public:
typedef llvm::SmallVector<EltTy, 4> VecTy;
typedef typename VecTy::value_type value_type;
using VecTy = llvm::SmallVector<EltTy, 4>;
using value_type = typename VecTy::value_type;
using PtrUnion = llvm::PointerUnion<EltTy, VecTy *>;
llvm::PointerUnion<EltTy, VecTy*> Val;
private:
PtrUnion Val;
public:
TinyPtrVector() {}
~TinyPtrVector() {
if (VecTy *V = Val.template dyn_cast<VecTy*>())
@ -96,12 +99,13 @@ public:
return *this;
}
/// Constructor from a single element.
explicit TinyPtrVector(EltTy Elt) : Val(Elt) {}
/// Constructor from an ArrayRef.
///
/// This also is a constructor for individual array elements due to the single
/// element constructor for ArrayRef.
explicit TinyPtrVector(ArrayRef<EltTy> Elts)
: Val(new VecTy(Elts.begin(), Elts.end())) {}
: Val(Elts.size() == 1 ? PtrUnion(Elts[0])
: PtrUnion(new VecTy(Elts.begin(), Elts.end()))) {}
// implicit conversion operator to ArrayRef.
operator ArrayRef<EltTy>() const {