1 //===--- SemaLambda.h - Lambda Helper Functions --------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
10 /// This file provides some common utility functions for processing
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_CLANG_SEMA_SEMALAMBDA_H
16 #define LLVM_CLANG_SEMA_SEMALAMBDA_H
18 #include "clang/AST/ASTLambda.h"
22 class FunctionScopeInfo;
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.
33 Optional<unsigned> getStackIndexOfNearestEnclosingCaptureCapableLambda(
34 ArrayRef<const sema::FunctionScopeInfo *> FunctionScopes,
35 VarDecl *VarToCapture, Sema &S);