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diff --git a/contrib/libs/antlr4_cpp_runtime/src/Parser.h b/contrib/libs/antlr4_cpp_runtime/src/Parser.h
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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 "Recognizer.h"
+#include "tree/ParseTreeListener.h"
+#include "tree/ParseTree.h"
+#include "TokenStream.h"
+#include "TokenSource.h"
+#include "misc/Interval.h"
+
+namespace antlr4 {
+
+  /// This is all the parsing support code essentially; most of it is error recovery stuff.
+  class ANTLR4CPP_PUBLIC Parser : public Recognizer {
+  public:
+
+    class TraceListener : public tree::ParseTreeListener {
+    public:
+      TraceListener(Parser *outerInstance);
+      virtual ~TraceListener();
+
+      virtual void enterEveryRule(ParserRuleContext *ctx) override;
+      virtual void visitTerminal(tree::TerminalNode *node) override;
+      virtual void visitErrorNode(tree::ErrorNode *node) override;
+      virtual void exitEveryRule(ParserRuleContext *ctx) override;
+
+    private:
+      Parser *const outerInstance;
+    };
+
+    class TrimToSizeListener : public tree::ParseTreeListener {
+    public:
+      static TrimToSizeListener INSTANCE;
+
+      virtual ~TrimToSizeListener();
+
+      virtual void enterEveryRule(ParserRuleContext *ctx) override;
+      virtual void visitTerminal(tree::TerminalNode *node) override;
+      virtual void visitErrorNode(tree::ErrorNode *node) override;
+      virtual void exitEveryRule(ParserRuleContext *ctx) override;
+    };
+
+    Parser(TokenStream *input);
+    virtual ~Parser();
+
+    /// reset the parser's state
+    virtual void reset();
+
+    /// <summary>
+    /// Match current input symbol against {@code ttype}. If the symbol type
+    /// matches, <seealso cref="ANTLRErrorStrategy#reportMatch"/> and <seealso cref="#consume"/> are
+    /// called to complete the match process.
+    ///
+    /// If the symbol type does not match,
+    /// <seealso cref="ANTLRErrorStrategy#recoverInline"/> is called on the current error
+    /// strategy to attempt recovery. If <seealso cref="#getBuildParseTree"/> is
+    /// {@code true} and the token index of the symbol returned by
+    /// <seealso cref="ANTLRErrorStrategy#recoverInline"/> is -1, the symbol is added to
+    /// the parse tree by calling {@link #createErrorNode(ParserRuleContext, Token)} then
+    /// {@link ParserRuleContext#addErrorNode(ErrorNode)}.
+    /// </summary>
+    /// <param name="ttype"> the token type to match </param>
+    /// <returns> the matched symbol </returns>
+    /// <exception cref="RecognitionException"> if the current input symbol did not match
+    /// {@code ttype} and the error strategy could not recover from the
+    /// mismatched symbol </exception>
+    virtual Token* match(size_t ttype);
+
+    /// <summary>
+    /// Match current input symbol as a wildcard. If the symbol type matches
+    /// (i.e. has a value greater than 0), <seealso cref="ANTLRErrorStrategy#reportMatch"/>
+    /// and <seealso cref="#consume"/> are called to complete the match process.
+    /// <p/>
+    /// If the symbol type does not match,
+    /// <seealso cref="ANTLRErrorStrategy#recoverInline"/> is called on the current error
+    /// strategy to attempt recovery. If <seealso cref="#getBuildParseTree"/> is
+    /// {@code true} and the token index of the symbol returned by
+    /// <seealso cref="ANTLRErrorStrategy#recoverInline"/> is -1, the symbol is added to
+    /// the parse tree by calling <seealso cref="ParserRuleContext#addErrorNode"/>.
+    /// </summary>
+    /// <returns> the matched symbol </returns>
+    /// <exception cref="RecognitionException"> if the current input symbol did not match
+    /// a wildcard and the error strategy could not recover from the mismatched
+    /// symbol </exception>
+    virtual Token* matchWildcard();
+
+    /// <summary>
+    /// Track the <seealso cref="ParserRuleContext"/> objects during the parse and hook
+    /// them up using the <seealso cref="ParserRuleContext#children"/> list so that it
+    /// forms a parse tree. The <seealso cref="ParserRuleContext"/> returned from the start
+    /// rule represents the root of the parse tree.
+    /// <p/>
+    /// Note that if we are not building parse trees, rule contexts only point
+    /// upwards. When a rule exits, it returns the context but that gets garbage
+    /// collected if nobody holds a reference. It points upwards but nobody
+    /// points at it.
+    /// <p/>
+    /// When we build parse trees, we are adding all of these contexts to
+    /// <seealso cref="ParserRuleContext#children"/> list. Contexts are then not candidates
+    /// for garbage collection.
+    /// </summary>
+    virtual void setBuildParseTree(bool buildParseTrees);
+
+    /// <summary>
+    /// Gets whether or not a complete parse tree will be constructed while
+    /// parsing. This property is {@code true} for a newly constructed parser.
+    /// </summary>
+    /// <returns> {@code true} if a complete parse tree will be constructed while
+    /// parsing, otherwise {@code false} </returns>
+    virtual bool getBuildParseTree();
+
+    /// <summary>
+    /// Trim the internal lists of the parse tree during parsing to conserve memory.
+    /// This property is set to {@code false} by default for a newly constructed parser.
+    /// </summary>
+    /// <param name="trimParseTrees"> {@code true} to trim the capacity of the <seealso cref="ParserRuleContext#children"/>
+    /// list to its size after a rule is parsed. </param>
+    virtual void setTrimParseTree(bool trimParseTrees);
+
+    /// <returns> {@code true} if the <seealso cref="ParserRuleContext#children"/> list is trimmed
+    /// using the default <seealso cref="Parser.TrimToSizeListener"/> during the parse process. </returns>
+    virtual bool getTrimParseTree();
+
+    virtual std::vector<tree::ParseTreeListener *> getParseListeners();
+
+    /// <summary>
+    /// Registers {@code listener} to receive events during the parsing process.
+    /// <p/>
+    /// To support output-preserving grammar transformations (including but not
+    /// limited to left-recursion removal, automated left-factoring, and
+    /// optimized code generation), calls to listener methods during the parse
+    /// may differ substantially from calls made by
+    /// <seealso cref="ParseTreeWalker#DEFAULT"/> used after the parse is complete. In
+    /// particular, rule entry and exit events may occur in a different order
+    /// during the parse than after the parser. In addition, calls to certain
+    /// rule entry methods may be omitted.
+    /// <p/>
+    /// With the following specific exceptions, calls to listener events are
+    /// <em>deterministic</em>, i.e. for identical input the calls to listener
+    /// methods will be the same.
+    ///
+    /// <ul>
+    /// <li>Alterations to the grammar used to generate code may change the
+    /// behavior of the listener calls.</li>
+    /// <li>Alterations to the command line options passed to ANTLR 4 when
+    /// generating the parser may change the behavior of the listener calls.</li>
+    /// <li>Changing the version of the ANTLR Tool used to generate the parser
+    /// may change the behavior of the listener calls.</li>
+    /// </ul>
+    /// </summary>
+    /// <param name="listener"> the listener to add
+    /// </param>
+    /// <exception cref="NullPointerException"> if {@code} listener is {@code null} </exception>
+    virtual void addParseListener(tree::ParseTreeListener *listener);
+
+    /// <summary>
+    /// Remove {@code listener} from the list of parse listeners.
+    /// <p/>
+    /// If {@code listener} is {@code null} or has not been added as a parse
+    /// listener, this method does nothing.
+    /// </summary>
+    /// <seealso cref= #addParseListener
+    /// </seealso>
+    /// <param name="listener"> the listener to remove </param>
+    virtual void removeParseListener(tree::ParseTreeListener *listener);
+
+    /// <summary>
+    /// Remove all parse listeners.
+    /// </summary>
+    /// <seealso cref= #addParseListener </seealso>
+    virtual void removeParseListeners();
+
+    /// <summary>
+    /// Notify any parse listeners of an enter rule event.
+    /// </summary>
+    /// <seealso cref= #addParseListener </seealso>
+    virtual void triggerEnterRuleEvent();
+
+    /// <summary>
+    /// Notify any parse listeners of an exit rule event.
+    /// </summary>
+    /// <seealso cref= #addParseListener </seealso>
+    virtual void triggerExitRuleEvent();
+
+    /// <summary>
+    /// Gets the number of syntax errors reported during parsing. This value is
+    /// incremented each time <seealso cref="#notifyErrorListeners"/> is called.
+    /// </summary>
+    /// <seealso cref= #notifyErrorListeners </seealso>
+    virtual size_t getNumberOfSyntaxErrors();
+
+    virtual TokenFactory<CommonToken>* getTokenFactory() override;
+
+    /// <summary>
+    /// Tell our token source and error strategy about a new way to create tokens. </summary>
+    template<typename T1>
+    void setTokenFactory(TokenFactory<T1> *factory)  {
+      _input->getTokenSource()->setTokenFactory(factory);
+    }
+
+    /// The ATN with bypass alternatives is expensive to create so we create it
+    /// lazily. The ATN is owned by us.
+    virtual const atn::ATN& getATNWithBypassAlts();
+
+    /// <summary>
+    /// The preferred method of getting a tree pattern. For example, here's a
+    /// sample use:
+    ///
+    /// <pre>
+    /// ParseTree t = parser.expr();
+    /// ParseTreePattern p = parser.compileParseTreePattern("<ID>+0", MyParser.RULE_expr);
+    /// ParseTreeMatch m = p.match(t);
+    /// String id = m.get("ID");
+    /// </pre>
+    /// </summary>
+    virtual tree::pattern::ParseTreePattern compileParseTreePattern(const std::string &pattern, int patternRuleIndex);
+
+    /// <summary>
+    /// The same as <seealso cref="#compileParseTreePattern(String, int)"/> but specify a
+    /// <seealso cref="Lexer"/> rather than trying to deduce it from this parser.
+    /// </summary>
+    virtual tree::pattern::ParseTreePattern compileParseTreePattern(const std::string &pattern, int patternRuleIndex,
+                                                                    Lexer *lexer);
+
+    virtual Ref<ANTLRErrorStrategy> getErrorHandler();
+    virtual void setErrorHandler(Ref<ANTLRErrorStrategy> const& handler);
+
+    virtual IntStream* getInputStream() override;
+    void setInputStream(IntStream *input) override;
+
+    virtual TokenStream* getTokenStream();
+
+    /// Set the token stream and reset the parser.
+    virtual void setTokenStream(TokenStream *input);
+
+    /// <summary>
+    /// Match needs to return the current input symbol, which gets put
+    ///  into the label for the associated token ref; e.g., x=ID.
+    /// </summary>
+    virtual Token* getCurrentToken();
+
+    void notifyErrorListeners(const std::string &msg);
+
+    virtual void notifyErrorListeners(Token *offendingToken, const std::string &msg, std::exception_ptr e);
+
+    /// Consume and return the <seealso cref="#getCurrentToken current symbol"/>.
+    /// <p/>
+    /// E.g., given the following input with {@code A} being the current
+    /// lookahead symbol, this function moves the cursor to {@code B} and returns
+    /// {@code A}.
+    ///
+    /// <pre>
+    ///  A B
+    ///  ^
+    /// </pre>
+    ///
+    /// If the parser is not in error recovery mode, the consumed symbol is added
+    /// to the parse tree using <seealso cref="ParserRuleContext#addChild(TerminalNode)"/>, and
+    /// <seealso cref="ParseTreeListener#visitTerminal"/> is called on any parse listeners.
+    /// If the parser <em>is</em> in error recovery mode, the consumed symbol is
+    /// added to the parse tree using {@link #createErrorNode(ParserRuleContext, Token)} then
+    /// {@link ParserRuleContext#addErrorNode(ErrorNode)} and
+    /// <seealso cref="ParseTreeListener#visitErrorNode"/> is called on any parse
+    /// listeners.
+    virtual Token* consume();
+
+    /// Always called by generated parsers upon entry to a rule. Access field
+    /// <seealso cref="#_ctx"/> get the current context.
+    virtual void enterRule(ParserRuleContext *localctx, size_t state, size_t ruleIndex);
+
+    void exitRule();
+
+    virtual void enterOuterAlt(ParserRuleContext *localctx, size_t altNum);
+
+    /**
+     * Get the precedence level for the top-most precedence rule.
+     *
+     * @return The precedence level for the top-most precedence rule, or -1 if
+     * the parser context is not nested within a precedence rule.
+     */
+    int getPrecedence() const;
+
+    /// @deprecated Use
+    /// <seealso cref="#enterRecursionRule(ParserRuleContext, int, int, int)"/> instead.
+    virtual void enterRecursionRule(ParserRuleContext *localctx, size_t ruleIndex);
+    virtual void enterRecursionRule(ParserRuleContext *localctx, size_t state, size_t ruleIndex, int precedence);
+
+    /** Like {@link #enterRule} but for recursive rules.
+     *  Make the current context the child of the incoming localctx.
+     */
+    virtual void pushNewRecursionContext(ParserRuleContext *localctx, size_t state, size_t ruleIndex);
+    virtual void unrollRecursionContexts(ParserRuleContext *parentctx);
+    virtual ParserRuleContext* getInvokingContext(size_t ruleIndex);
+    virtual ParserRuleContext* getContext();
+    virtual void setContext(ParserRuleContext *ctx);
+    virtual bool precpred(RuleContext *localctx, int precedence) override;
+    virtual bool inContext(const std::string &context);
+
+    /// <summary>
+    /// Checks whether or not {@code symbol} can follow the current state in the
+    /// ATN. The behavior of this method is equivalent to the following, but is
+    /// implemented such that the complete context-sensitive follow set does not
+    /// need to be explicitly constructed.
+    ///
+    /// <pre>
+    /// return getExpectedTokens().contains(symbol);
+    /// </pre>
+    /// </summary>
+    /// <param name="symbol"> the symbol type to check </param>
+    /// <returns> {@code true} if {@code symbol} can follow the current state in
+    /// the ATN, otherwise {@code false}. </returns>
+    virtual bool isExpectedToken(size_t symbol);
+
+    bool isMatchedEOF() const;
+
+    /// <summary>
+    /// Computes the set of input symbols which could follow the current parser
+    /// state and context, as given by <seealso cref="#getState"/> and <seealso cref="#getContext"/>,
+    /// respectively.
+    /// </summary>
+    /// <seealso cref= ATN#getExpectedTokens(int, RuleContext) </seealso>
+    virtual misc::IntervalSet getExpectedTokens();
+
+    virtual misc::IntervalSet getExpectedTokensWithinCurrentRule();
+
+    /// Get a rule's index (i.e., {@code RULE_ruleName} field) or INVALID_INDEX if not found.
+    virtual size_t getRuleIndex(const std::string &ruleName);
+
+    virtual ParserRuleContext* getRuleContext();
+
+    /// <summary>
+    /// Return List&lt;String&gt; of the rule names in your parser instance
+    ///  leading up to a call to the current rule.  You could override if
+    ///  you want more details such as the file/line info of where
+    ///  in the ATN a rule is invoked.
+    ///
+    ///  This is very useful for error messages.
+    /// </summary>
+    virtual std::vector<std::string> getRuleInvocationStack();
+
+    virtual std::vector<std::string> getRuleInvocationStack(RuleContext *p);
+
+    /// <summary>
+    /// For debugging and other purposes. </summary>
+    virtual std::vector<std::string> getDFAStrings();
+
+    /// <summary>
+    /// For debugging and other purposes. </summary>
+    virtual void dumpDFA();
+
+    virtual std::string getSourceName();
+
+    atn::ParseInfo getParseInfo() const;
+
+    /**
+     * @since 4.3
+     */
+    void setProfile(bool profile);
+
+    /// <summary>
+    /// During a parse is sometimes useful to listen in on the rule entry and exit
+    ///  events as well as token matches. This is for quick and dirty debugging.
+    /// </summary>
+    virtual void setTrace(bool trace);
+
+    /**
+     * Gets whether a {@link TraceListener} is registered as a parse listener
+     * for the parser.
+     *
+     * @see #setTrace(boolean)
+     */
+    bool isTrace() const;
+
+    tree::ParseTreeTracker& getTreeTracker() { return _tracker; }
+
+    /** How to create a token leaf node associated with a parent.
+     *  Typically, the terminal node to create is not a function of the parent
+     *  but this method must still set the parent pointer of the terminal node
+     *  returned. I would prefer having {@link ParserRuleContext#addAnyChild(ParseTree)}
+     *  set the parent pointer, but the parent pointer is implementation dependent
+     *  and currently there is no setParent() in {@link TerminalNode} (and can't
+     *  add method in Java 1.7 without breaking backward compatibility).
+     *
+     * @since 4.7
+     */
+    tree::TerminalNode *createTerminalNode(Token *t);
+
+    /** How to create an error node, given a token, associated with a parent.
+       *  Typically, the error node to create is not a function of the parent
+       *  but this method must still set the parent pointer of the terminal node
+       *  returned. I would prefer having {@link ParserRuleContext#addAnyChild(ParseTree)}
+       *  set the parent pointer, but the parent pointer is implementation dependent
+       *  and currently there is no setParent() in {@link ErrorNode} (and can't
+       *  add method in Java 1.7 without breaking backward compatibility).
+       *
+       * @since 4.7
+       */
+    tree::ErrorNode *createErrorNode(Token *t);
+
+  protected:
+    /// The ParserRuleContext object for the currently executing rule.
+    /// This is always non-null during the parsing process.
+    // ml: this is one of the contexts tracked in _allocatedContexts.
+    ParserRuleContext *_ctx;
+
+    /// The error handling strategy for the parser. The default is DefaultErrorStrategy.
+    /// See also getErrorHandler.
+    Ref<ANTLRErrorStrategy> _errHandler;
+
+    /// <summary>
+    /// The input stream.
+    /// </summary>
+    /// <seealso cref= #getInputStream </seealso>
+    /// <seealso cref= #setInputStream </seealso>
+    TokenStream *_input;
+
+    std::vector<int> _precedenceStack;
+
+    /// <summary>
+    /// Specifies whether or not the parser should construct a parse tree during
+    /// the parsing process. The default value is {@code true}.
+    /// </summary>
+    /// <seealso cref= #getBuildParseTree </seealso>
+    /// <seealso cref= #setBuildParseTree </seealso>
+    bool _buildParseTrees;
+
+    /// The list of <seealso cref="ParseTreeListener"/> listeners registered to receive
+    /// events during the parse.
+    /// <seealso cref= #addParseListener </seealso>
+    std::vector<tree::ParseTreeListener *> _parseListeners;
+
+    /// <summary>
+    /// The number of syntax errors reported during parsing. This value is
+    /// incremented each time <seealso cref="#notifyErrorListeners"/> is called.
+    /// </summary>
+    size_t _syntaxErrors;
+
+    /** Indicates parser has match()ed EOF token. See {@link #exitRule()}. */
+    bool _matchedEOF;
+
+    virtual void addContextToParseTree();
+
+    // All rule contexts created during a parse run. This is cleared when calling reset().
+    tree::ParseTreeTracker _tracker;
+
+  private:
+    /// When setTrace(true) is called, a reference to the
+    /// TraceListener is stored here so it can be easily removed in a
+    /// later call to setTrace(false). The listener itself is
+    /// implemented as a parser listener so this field is not directly used by
+    /// other parser methods.
+    TraceListener *_tracer;
+
+    void InitializeInstanceFields();
+  };
+
+} // namespace antlr4