//=== MangleNumberingContext.h - Context for mangling numbers ---*- 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

//

//===----------------------------------------------------------------------===//

//

//  This file defines the LambdaBlockMangleContext interface, which keeps track

//  of the Itanium C++ ABI mangling numbers for lambda expressions and block

//  literals.

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_MANGLENUMBERINGCONTEXT_H

#define LLVM_CLANG_AST_MANGLENUMBERINGCONTEXT_H

#include "clang/Basic/LLVM.h"

#include "llvm/ADT/IntrusiveRefCntPtr.h"

namespace clang {

class BlockDecl;

class CXXMethodDecl;

class TagDecl;

class VarDecl;

/// Keeps track of the mangled names of lambda expressions and block

/// literals within a particular context.

class MangleNumberingContext {

public:

  virtual ~MangleNumberingContext() {}

  /// Retrieve the mangling number of a new lambda expression with the

  /// given call operator within this context.

  virtual unsigned getManglingNumber(const CXXMethodDecl *CallOperator) = 0;

  /// Retrieve the mangling number of a new block literal within this

  /// context.

  virtual unsigned getManglingNumber(const BlockDecl *BD) = 0;

  /// Static locals are numbered by source order.

  virtual unsigned getStaticLocalNumber(const VarDecl *VD) = 0;

  /// Retrieve the mangling number of a static local variable within

  /// this context.

  virtual unsigned getManglingNumber(const VarDecl *VD,

                                     unsigned MSLocalManglingNumber) = 0;

  /// Retrieve the mangling number of a static local variable within

  /// this context.

  virtual unsigned getManglingNumber(const TagDecl *TD,

                                     unsigned MSLocalManglingNumber) = 0;

  /// Retrieve the mangling number of a new lambda expression with the

  /// given call operator within the device context. No device number is

  /// assigned if there's no device numbering context is associated.

  virtual unsigned getDeviceManglingNumber(const CXXMethodDecl *) { return 0; }

};

} // end namespace clang

#endif