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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 |