1 /* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
2 * Use of this file is governed by the BSD 3-clause license that
3 * can be found in the LICENSE.txt file in the project root.
8 #include "antlr4-common.h"
12 /// The default mechanism for creating tokens. It's used by default in Lexer and
13 /// the error handling strategy (to create missing tokens). Notifying the parser
14 /// of a new factory means that it notifies it's token source and error strategy.
15 template<typename Symbol>
16 class ANTLR4CPP_PUBLIC TokenFactory {
18 virtual ~TokenFactory() {}
20 /// This is the method used to create tokens in the lexer and in the
21 /// error handling strategy. If text!=null, than the start and stop positions
22 /// are wiped to -1 in the text override is set in the CommonToken.
23 virtual std::unique_ptr<Symbol> create(std::pair<TokenSource *, CharStream *> source, size_t type, const std::string &text,
24 size_t channel, size_t start, size_t stop, size_t line, size_t charPositionInLine) = 0;
26 /// Generically useful
27 virtual std::unique_ptr<Symbol> create(size_t type, const std::string &text) = 0;