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authorvitalyisaev <vitalyisaev@ydb.tech>2023-11-30 13:26:22 +0300
committervitalyisaev <vitalyisaev@ydb.tech>2023-11-30 15:44:45 +0300
commit0a98fece5a9b54f16afeb3a94b3eb3105e9c3962 (patch)
tree291d72dbd7e9865399f668c84d11ed86fb190bbf /contrib/libs/antlr4_cpp_runtime/src/atn/LexerIndexedCustomAction.h
parentcb2c8d75065e5b3c47094067cb4aa407d4813298 (diff)
downloadydb-0a98fece5a9b54f16afeb3a94b3eb3105e9c3962.tar.gz
YQ Connector:Use docker-compose in integrational tests
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+/* 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 "RuleContext.h"
+#include "atn/LexerAction.h"
+
+namespace antlr4 {
+namespace atn {
+
+ /// <summary>
+ /// This implementation of <seealso cref="LexerAction"/> is used for tracking input offsets
+ /// for position-dependent actions within a <seealso cref="LexerActionExecutor"/>.
+ ///
+ /// <para>This action is not serialized as part of the ATN, and is only required for
+ /// position-dependent lexer actions which appear at a location other than the
+ /// end of a rule. For more information about DFA optimizations employed for
+ /// lexer actions, see <seealso cref="LexerActionExecutor#append"/> and
+ /// <seealso cref="LexerActionExecutor#fixOffsetBeforeMatch"/>.</para>
+ ///
+ /// @author Sam Harwell
+ /// @since 4.2
+ /// </summary>
+ class ANTLR4CPP_PUBLIC LexerIndexedCustomAction final : public LexerAction {
+ public:
+ static bool is(const LexerAction &lexerAction) { return lexerAction.getActionType() == LexerActionType::INDEXED_CUSTOM; }
+
+ static bool is(const LexerAction *lexerAction) { return lexerAction != nullptr && is(*lexerAction); }
+
+ /// <summary>
+ /// Constructs a new indexed custom action by associating a character offset
+ /// with a <seealso cref="LexerAction"/>.
+ ///
+ /// <para>Note: This class is only required for lexer actions for which
+ /// <seealso cref="LexerAction#isPositionDependent"/> returns {@code true}.</para>
+ /// </summary>
+ /// <param name="offset"> The offset into the input <seealso cref="CharStream"/>, relative to
+ /// the token start index, at which the specified lexer action should be
+ /// executed. </param>
+ /// <param name="action"> The lexer action to execute at a particular offset in the
+ /// input <seealso cref="CharStream"/>. </param>
+ LexerIndexedCustomAction(int offset, Ref<const LexerAction> action);
+
+ /// <summary>
+ /// Gets the location in the input <seealso cref="CharStream"/> at which the lexer
+ /// action should be executed. The value is interpreted as an offset relative
+ /// to the token start index.
+ /// </summary>
+ /// <returns> The location in the input <seealso cref="CharStream"/> at which the lexer
+ /// action should be executed. </returns>
+ int getOffset() const { return _offset; }
+
+ /// <summary>
+ /// Gets the lexer action to execute.
+ /// </summary>
+ /// <returns> A <seealso cref="LexerAction"/> object which executes the lexer action. </returns>
+ const Ref<const LexerAction>& getAction() const { return _action; }
+
+ 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 Ref<const LexerAction> _action;
+ const int _offset;
+ };
+
+} // namespace atn
+} // namespace antlr4
+