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Add ArrayRef constructor from None, and do the cleanups that this constructor enables

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Patch by Robert Wilhelm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dmitri Gribenko
2013-05-05 00:40:33 +00:00
parent 76be9bf67e
commit 5c332dbd30
21 changed files with 48 additions and 46 deletions
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9
include/llvm/ADT/ArrayRef.h
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@@ -10,6 +10,7 @@
#ifndef LLVM_ADT_ARRAYREF_H
#define LLVM_ADT_ARRAYREF_H
#include "llvm/ADT/None.h"
#include "llvm/ADT/SmallVector.h"
#include <vector>
@@ -49,6 +50,9 @@ namespace llvm {
/// Construct an empty ArrayRef.
/*implicit*/ ArrayRef() : Data(0), Length(0) {}
/// Construct an empty ArrayRef from None.
/*implicit*/ ArrayRef(NoneType) : Data(0), Length(0) {}
/// Construct an ArrayRef from a single element.
/*implicit*/ ArrayRef(const T &OneElt)
: Data(&OneElt), Length(1) {}
@@ -174,9 +178,12 @@ namespace llvm {
public:
typedef T *iterator;
/// Construct an empty ArrayRef.
/// Construct an empty MutableArrayRef.
/*implicit*/ MutableArrayRef() : ArrayRef<T>() {}
/// Construct an empty MutableArrayRef from None.
/*implicit*/ MutableArrayRef(NoneType) : ArrayRef<T>() {}
/// Construct an MutableArrayRef from a single element.
/*implicit*/ MutableArrayRef(T &OneElt) : ArrayRef<T>(OneElt) {}