| 1 | //===--- SemaLambda.h - Lambda Helper Functions --------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | /// |
| 9 | /// \file |
| 10 | /// This file provides some common utility functions for processing |
| 11 | /// Lambdas. |
| 12 | /// |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #ifndef LLVM_CLANG_SEMA_SEMALAMBDA_H |
| 16 | #define LLVM_CLANG_SEMA_SEMALAMBDA_H |
| 17 | |
| 18 | #include "clang/AST/ASTLambda.h" |
| 19 | |
| 20 | namespace clang { |
| 21 | namespace sema { |
| 22 | class FunctionScopeInfo; |
| 23 | } |
| 24 | class Sema; |
| 25 | |
| 26 | /// Examines the FunctionScopeInfo stack to determine the nearest |
| 27 | /// enclosing lambda (to the current lambda) that is 'capture-capable' for |
| 28 | /// the variable referenced in the current lambda (i.e. \p VarToCapture). |
| 29 | /// If successful, returns the index into Sema's FunctionScopeInfo stack |
| 30 | /// of the capture-capable lambda's LambdaScopeInfo. |
| 31 | /// See Implementation for more detailed comments. |
| 32 | |
| 33 | Optional<unsigned> getStackIndexOfNearestEnclosingCaptureCapableLambda( |
| 34 | ArrayRef<const sema::FunctionScopeInfo *> FunctionScopes, |
| 35 | VarDecl *VarToCapture, Sema &S); |
| 36 | |
| 37 | } // clang |
| 38 | |
| 39 | #endif |
| 40 |