blob: 1a5c53efef288f54a9dd3c74f0324130737ef9d9 (
plain) (
blame)
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
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/* 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/LexerAction.h"
#include "atn/LexerActionType.h"
namespace antlr4 {
namespace atn {
using antlr4::Lexer;
/// <summary>
/// Implements the {@code channel} lexer action by calling
/// <seealso cref="Lexer#setChannel"/> with the assigned channel.
///
/// @author Sam Harwell
/// @since 4.2
/// </summary>
class ANTLR4CPP_PUBLIC LexerChannelAction final : public LexerAction {
public:
static bool is(const LexerAction &lexerAction) { return lexerAction.getActionType() == LexerActionType::CHANNEL; }
static bool is(const LexerAction *lexerAction) { return lexerAction != nullptr && is(*lexerAction); }
/// <summary>
/// Constructs a new {@code channel} action with the specified channel value. </summary>
/// <param name="channel"> The channel value to pass to <seealso cref="Lexer#setChannel"/>. </param>
explicit LexerChannelAction(int channel);
/// <summary>
/// Gets the channel to use for the <seealso cref="Token"/> created by the lexer.
/// </summary>
/// <returns> The channel to use for the <seealso cref="Token"/> created by the lexer. </returns>
int getChannel() const { return _channel; }
/// <summary>
/// {@inheritDoc}
///
/// <para>This action is implemented by calling <seealso cref="Lexer#setChannel"/> with the
/// value provided by <seealso cref="#getChannel"/>.</para>
/// </summary>
void execute(Lexer *lexer) const override;
bool equals(const LexerAction &other) const override;
std::string toString() const override;
protected:
size_t hashCodeImpl() const override;
private:
const int _channel;
};
} // namespace atn
} // namespace antlr4
|
