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Amend "Remove unused type Either from Utility library". 

llvm-svn: 339430
This commit is contained in:
Tatyana Krasnukha 2018-08-10 13:01:26 +00:00
parent b3c11504bd
commit a94f3363ef
1 changed files with 0 additions and 72 deletions
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72
lldb/include/lldb/Utility/Either.h
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@ -1,72 +0,0 @@
//===-- Either.h -----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_Either_h_
#define liblldb_Either_h_
#include "llvm/ADT/Optional.h"
namespace lldb_utility {
template <typename T1, typename T2>
class Either {
private:
enum class Selected {
One, Two
};
Selected m_selected;
union {
T1 m_t1;
T2 m_t2;
};
public:
Either(const T1& t1)
{
m_t1 = t1;
m_selected = Selected::One;
}
Either(const T2& t2)
{
m_t2 = t2;
m_selected = Selected::Two;
}
template <class X, typename std::enable_if<std::is_same<T1,X>::value>::type * = nullptr >
llvm::Optional<T1>
GetAs()
{
switch (m_selected)
{
case Selected::One:
return m_t1;
default:
return llvm::Optional<T1>();
}
}
template <class X, typename std::enable_if<std::is_same<T2,X>::value>::type * = nullptr >
llvm::Optional<T2>
GetAs()
{
switch (m_selected)
{
case Selected::Two:
return m_t2;
default:
return llvm::Optional<T2>();
}
}
};
} // namespace lldb_utility
#endif // #ifndef liblldb_Either_h_