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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | //===- Optional.h - Simple variant for passing optional values --*- C++ -*-===// |
| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | /// |
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| 9 | /// \file |
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| 10 | /// This file provides Optional, a template class modeled in the spirit of |
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| 11 | /// OCaml's 'opt' variant. The idea is to strongly type whether or not |
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| 12 | /// a value can be optional. |
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| 13 | /// |
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| 14 | //===----------------------------------------------------------------------===// |
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| 15 | |||
| 16 | #ifndef LLVM_ADT_OPTIONAL_H |
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| 17 | #define LLVM_ADT_OPTIONAL_H |
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| 18 | |||
| 19 | #include <optional> |
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| 20 | |||
| 21 | namespace llvm { |
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| 22 | // Legacy alias of llvm::Optional to std::optional. |
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| 23 | // FIXME: Remove this after LLVM 16. |
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| 24 | template <class T> using Optional = std::optional<T>; |
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| 25 | } // namespace llvm |
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| 26 | |||
| 27 | #endif // LLVM_ADT_OPTIONAL_H |