64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
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/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
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* Use of this file is governed by the BSD 3-clause license that
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* can be found in the LICENSE.txt file in the project root.
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*/
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#pragma once
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#include "atn/LexerAction.h"
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#include "atn/LexerActionType.h"
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namespace antlr4 {
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namespace atn {
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using antlr4::Lexer;
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/// <summary>
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/// Implements the {@code channel} lexer action by calling
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/// <seealso cref="Lexer#setChannel"/> with the assigned channel.
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///
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/// @author Sam Harwell
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/// @since 4.2
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/// </summary>
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class ANTLR4CPP_PUBLIC LexerChannelAction final : public LexerAction {
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public:
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/// <summary>
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/// Constructs a new {@code channel} action with the specified channel value. </summary>
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/// <param name="channel"> The channel value to pass to <seealso cref="Lexer#setChannel"/>. </param>
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LexerChannelAction(int channel);
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/// <summary>
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/// Gets the channel to use for the <seealso cref="Token"/> created by the lexer.
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/// </summary>
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/// <returns> The channel to use for the <seealso cref="Token"/> created by the lexer. </returns>
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int getChannel() const;
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/// <summary>
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/// {@inheritDoc} </summary>
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/// <returns> This method returns <seealso cref="LexerActionType#CHANNEL"/>. </returns>
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virtual LexerActionType getActionType() const override;
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/// <summary>
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/// {@inheritDoc} </summary>
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/// <returns> This method returns {@code false}. </returns>
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virtual bool isPositionDependent() const override;
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/// <summary>
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/// {@inheritDoc}
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///
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/// <para>This action is implemented by calling <seealso cref="Lexer#setChannel"/> with the
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/// value provided by <seealso cref="#getChannel"/>.</para>
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/// </summary>
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virtual void execute(Lexer *lexer) override;
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virtual size_t hashCode() const override;
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virtual bool operator == (const LexerAction &obj) const override;
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virtual std::string toString() const override;
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private:
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const int _channel;
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};
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} // namespace atn
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} // namespace antlr4
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