| //===--- SemaLambda.h - Lambda Helper Functions --------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// This file provides some common utility functions for processing |
| /// Lambdas. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_CLANG_SEMA_SEMALAMBDA_H |
| #define LLVM_CLANG_SEMA_SEMALAMBDA_H |
| |
| #include "clang/AST/ASTLambda.h" |
| #include <optional> |
| |
| namespace clang { |
| namespace sema { |
| class FunctionScopeInfo; |
| } |
| class Sema; |
| |
| /// 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. |
| |
| std::optional<unsigned> getStackIndexOfNearestEnclosingCaptureCapableLambda( |
| ArrayRef<const sema::FunctionScopeInfo *> FunctionScopes, |
| ValueDecl *VarToCapture, Sema &S); |
| |
| } // clang |
| |
| #endif |