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//===--- SemaLambda.h - Lambda Helper Functions --------------*- C++ -*-===//
// The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
/// \file
/// \brief This file provides some common utility functions for processing
/// Lambdas.
#include "clang/AST/ASTLambda.h"
#include "clang/Sema/ScopeInfo.h"
namespace clang {
/// \brief Examines the FunctionScopeInfo stack to determine the nearest
/// enclosing lambda (to the current lambda) that is 'capture-capable' for
/// the variable referenced in the current lambda (i.e. \p VarToCapture).
/// If successful, returns the index into Sema's FunctionScopeInfo stack
/// of the capture-capable lambda's LambdaScopeInfo.
/// See Implementation for more detailed comments.
Optional<unsigned> getStackIndexOfNearestEnclosingCaptureCapableLambda(
ArrayRef<const sema::FunctionScopeInfo *> FunctionScopes,
VarDecl *VarToCapture, Sema &S);
} // clang