/* -*- coding: utf-8 -*-
 *
 * Copyright 2022 IBM RESEARCH. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */

#ifndef __QASM_AST_CAL_CONTEXT_BUILDER_H
#define __QASM_AST_CAL_CONTEXT_BUILDER_H

#include <iostream>

namespace QASM {

// Implemented in ASTDefcal.cpp
class ASTCalContextBuilder {
private:
  static ASTCalContextBuilder CCB;
  static bool CCS;

protected:
  ASTCalContextBuilder() = default;

public:
  static ASTCalContextBuilder &Instance() { return CCB; }

  void OpenContext() { CCS = true; }

  void CloseContext() { CCS = false; }

  bool InOpenContext() const { return CCS; }
};

} // namespace QASM

#endif // __QASM_AST_CAL_CONTEXT_BUILDER_H
