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Diffstat (limited to 'include/llvm/ADT/NullablePtr.h')
-rw-r--r-- | include/llvm/ADT/NullablePtr.h | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/include/llvm/ADT/NullablePtr.h b/include/llvm/ADT/NullablePtr.h deleted file mode 100644 index 8ddfd5d20abdc..0000000000000 --- a/include/llvm/ADT/NullablePtr.h +++ /dev/null @@ -1,52 +0,0 @@ -//===- llvm/ADT/NullablePtr.h - A pointer that allows null ------*- 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 and implements the NullablePtr class. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_ADT_NULLABLEPTR_H -#define LLVM_ADT_NULLABLEPTR_H - -#include <cassert> -#include <cstddef> - -namespace llvm { -/// NullablePtr pointer wrapper - NullablePtr is used for APIs where a -/// potentially-null pointer gets passed around that must be explicitly handled -/// in lots of places. By putting a wrapper around the null pointer, it makes -/// it more likely that the null pointer case will be handled correctly. -template<class T> -class NullablePtr { - T *Ptr; -public: - NullablePtr(T *P = 0) : Ptr(P) {} - - bool isNull() const { return Ptr == 0; } - bool isNonNull() const { return Ptr != 0; } - - /// get - Return the pointer if it is non-null. - const T *get() const { - assert(Ptr && "Pointer wasn't checked for null!"); - return Ptr; - } - - /// get - Return the pointer if it is non-null. - T *get() { - assert(Ptr && "Pointer wasn't checked for null!"); - return Ptr; - } - - T *getPtrOrNull() { return Ptr; } - const T *getPtrOrNull() const { return Ptr; } -}; - -} // end namespace llvm - -#endif |