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-rw-r--r--libsolidity/parsing/ParserBase.h93
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diff --git a/libsolidity/parsing/ParserBase.h b/libsolidity/parsing/ParserBase.h
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-/*
- This file is part of solidity.
-
- solidity is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- solidity is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with solidity. If not, see <http://www.gnu.org/licenses/>.
-*/
-/**
- * @author Christian <c@ethdev.com>
- * @date 2016
- * Solidity parser shared functionality.
- */
-
-#pragma once
-
-#include <memory>
-#include <libsolidity/parsing/Token.h>
-
-namespace dev
-{
-namespace solidity
-{
-
-class ErrorReporter;
-class Scanner;
-
-class ParserBase
-{
-public:
- explicit ParserBase(ErrorReporter& errorReporter): m_errorReporter(errorReporter) {}
-
- std::shared_ptr<std::string const> const& sourceName() const;
-
-protected:
- /// Utility class that creates an error and throws an exception if the
- /// recursion depth is too deep.
- class RecursionGuard
- {
- public:
- explicit RecursionGuard(ParserBase& _parser): m_parser(_parser)
- {
- m_parser.increaseRecursionDepth();
- }
- ~RecursionGuard() { m_parser.decreaseRecursionDepth(); }
- private:
- ParserBase& m_parser;
- };
-
- /// Start position of the current token
- int position() const;
- /// End position of the current token
- int endPosition() const;
-
- ///@{
- ///@name Helper functions
- /// If current token value is not _value, throw exception otherwise advance token.
- void expectToken(Token _value, bool _advance = true);
- Token currentToken() const;
- Token peekNextToken() const;
- std::string currentLiteral() const;
- Token advance();
- ///@}
-
- /// Increases the recursion depth and throws an exception if it is too deep.
- void increaseRecursionDepth();
- void decreaseRecursionDepth();
-
- /// Creates a @ref ParserError and annotates it with the current position and the
- /// given @a _description.
- void parserError(std::string const& _description);
-
- /// Creates a @ref ParserError and annotates it with the current position and the
- /// given @a _description. Throws the FatalError.
- void fatalParserError(std::string const& _description);
-
- std::shared_ptr<Scanner> m_scanner;
- /// The reference to the list of errors and warning to add errors/warnings during parsing
- ErrorReporter& m_errorReporter;
- /// Current recursion depth during parsing.
- size_t m_recursionDepth = 0;
-};
-
-}
-}