1 //===--- SemaLambda.h - Lambda Helper Functions --------------*- 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 This file provides some common utility functions for processing 12 /// Lambdas. 13 /// 14 //===----------------------------------------------------------------------===// 15 16 #ifndef LLVM_CLANG_SEMA_SEMALAMBDA_H 17 #define LLVM_CLANG_SEMA_SEMALAMBDA_H 18 #include "clang/AST/ASTLambda.h" 19 #include "clang/Sema/ScopeInfo.h" 20 namespace clang { 21 class Sema; 22 23 /// \brief Examines the FunctionScopeInfo stack to determine the nearest 24 /// enclosing lambda (to the current lambda) that is 'capture-capable' for 25 /// the variable referenced in the current lambda (i.e. \p VarToCapture). 26 /// If successful, returns the index into Sema's FunctionScopeInfo stack 27 /// of the capture-capable lambda's LambdaScopeInfo. 28 /// See Implementation for more detailed comments. 29 30 Optional<unsigned> getStackIndexOfNearestEnclosingCaptureCapableLambda( 31 ArrayRef<const sema::FunctionScopeInfo *> FunctionScopes, 32 VarDecl *VarToCapture, Sema &S); 33 34 } // clang 35 36 #endif 37