1 //===--- Lambda.h - Types for C++ Lambdas -----------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 /// 10 /// \file 11 /// \brief Defines several types used to describe C++ lambda expressions 12 /// that are shared between the parser and AST. 13 /// 14 //===----------------------------------------------------------------------===// 15 16 17 #ifndef LLVM_CLANG_BASIC_LAMBDA_H 18 #define LLVM_CLANG_BASIC_LAMBDA_H 19 20 namespace clang { 21 22 /// \brief The default, if any, capture method for a lambda expression. 23 enum LambdaCaptureDefault { 24 LCD_None, 25 LCD_ByCopy, 26 LCD_ByRef 27 }; 28 29 /// \brief The different capture forms in a lambda introducer 30 /// 31 /// C++11 allows capture of \c this, or of local variables by copy or 32 /// by reference. C++1y also allows "init-capture", where the initializer 33 /// is an expression. 34 enum LambdaCaptureKind { 35 LCK_This, ///< Capturing the \c this pointer 36 LCK_ByCopy, ///< Capturing by copy (a.k.a., by value) 37 LCK_ByRef, ///< Capturing by reference 38 LCK_VLAType ///< Capturing variable-length array type 39 }; 40 41 } // end namespace clang 42 43 #endif // LLVM_CLANG_BASIC_LAMBDA_H 44