| 1 | //===--- Lambda.h - Types for C++ Lambdas -----------------------*- C++ -*-===// |
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| 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 | /// Defines several types used to describe C++ lambda expressions |
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| 11 | /// that are shared between the parser and AST. |
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| 12 | /// |
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| 13 | //===----------------------------------------------------------------------===// |
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| 14 | |
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| 15 | |
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| 16 | #ifndef LLVM_CLANG_BASIC_LAMBDA_H |
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| 17 | #define LLVM_CLANG_BASIC_LAMBDA_H |
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| 18 | |
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| 19 | namespace clang { |
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| 20 | |
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| 21 | /// The default, if any, capture method for a lambda expression. |
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| 22 | enum LambdaCaptureDefault { |
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| 23 | LCD_None, |
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| 24 | LCD_ByCopy, |
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| 25 | LCD_ByRef |
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| 26 | }; |
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| 27 | |
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| 28 | /// The different capture forms in a lambda introducer |
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| 29 | /// |
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| 30 | /// C++11 allows capture of \c this, or of local variables by copy or |
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| 31 | /// by reference. C++1y also allows "init-capture", where the initializer |
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| 32 | /// is an expression. |
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| 33 | enum LambdaCaptureKind { |
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| 34 | LCK_This, ///< Capturing the \c *this object by reference |
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| 35 | LCK_StarThis, ///< Capturing the \c *this object by copy |
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| 36 | LCK_ByCopy, ///< Capturing by copy (a.k.a., by value) |
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| 37 | LCK_ByRef, ///< Capturing by reference |
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| 38 | LCK_VLAType ///< Capturing variable-length array type |
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| 39 | }; |
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| 40 | |
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| 41 | } // end namespace clang |
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| 42 | |
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| 43 | #endif // LLVM_CLANG_BASIC_LAMBDA_H |
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| 44 | |
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