clang/Basic/Lambda.h

0001 //===--- Lambda.h - Types for C++ Lambdas -----------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008 ///
0009 /// \file
0010 /// Defines several types used to describe C++ lambda expressions
0011 /// that are shared between the parser and AST.
0012 ///
0013 //===----------------------------------------------------------------------===//
0014
0015
0016 #ifndef LLVM_CLANG_BASIC_LAMBDA_H
0017 #define LLVM_CLANG_BASIC_LAMBDA_H
0018
0019 namespace clang {
0020
0021 /// The default, if any, capture method for a lambda expression.
0022 enum LambdaCaptureDefault {
0023   LCD_None,
0024   LCD_ByCopy,
0025   LCD_ByRef
0026 };
0027
0028 /// The different capture forms in a lambda introducer
0029 ///
0030 /// C++11 allows capture of \c this, or of local variables by copy or
0031 /// by reference.  C++1y also allows "init-capture", where the initializer
0032 /// is an expression.
0033 enum LambdaCaptureKind {
0034   LCK_This,   ///< Capturing the \c *this object by reference
0035   LCK_StarThis, ///< Capturing the \c *this object by copy
0036   LCK_ByCopy, ///< Capturing by copy (a.k.a., by value)
0037   LCK_ByRef,  ///< Capturing by reference
0038   LCK_VLAType ///< Capturing variable-length array type
0039 };
0040
0041 } // end namespace clang
0042
0043 #endif // LLVM_CLANG_BASIC_LAMBDA_H