abouttreesummaryrefslogcommitdiff
path: root/antlr4-cpp-runtime-4.9.2-source/install/include/antlr4-runtime/atn/EmptyPredictionContext.h
blob: 93c036c54911ca0cd4337cf4a1c381b1e555bd60 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */

#pragma once

#include "atn/SingletonPredictionContext.h"

namespace antlr4 {
namespace atn {

  class ANTLR4CPP_PUBLIC EmptyPredictionContext : public SingletonPredictionContext {
  public:
    EmptyPredictionContext();

    virtual bool isEmpty() const override;
    virtual size_t size() const override;
    virtual Ref<PredictionContext> getParent(size_t index) const override;
    virtual size_t getReturnState(size_t index) const override;
    virtual std::string toString() const override;

    virtual bool operator == (const PredictionContext &o) const override;
  };

} // namespace atn
} // namespace antlr4