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      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_Init    ///< C++1y "init-capture", value specified by an expression
     39 };
     40 
     41 } // end namespace clang
     42 
     43 #endif // LLVM_CLANG_BASIC_LAMBDA_H
     44