mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2016
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* Solidity parser shared functionality.
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*/
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#include <libsolidity/parsing/ParserBase.h>
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#include <libsolidity/parsing/Scanner.h>
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using namespace std;
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using namespace dev;
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using namespace dev::solidity;
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std::shared_ptr<string const> const& ParserBase::sourceName() const
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{
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return m_scanner->sourceName();
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}
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int ParserBase::position() const
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{
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return m_scanner->currentLocation().start;
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}
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int ParserBase::endPosition() const
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{
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return m_scanner->currentLocation().end;
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}
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void ParserBase::expectToken(Token::Value _value)
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{
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if (m_scanner->currentToken() != _value)
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fatalParserError(
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string("Expected token ") +
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string(Token::name(_value)) +
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string(" got '") +
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string(Token::name(m_scanner->currentToken())) +
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string("'")
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);
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m_scanner->next();
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}
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Token::Value ParserBase::expectAssignmentOperator()
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{
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Token::Value op = m_scanner->currentToken();
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if (!Token::isAssignmentOp(op))
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fatalParserError(
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string("Expected assignment operator, got '") +
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string(Token::name(m_scanner->currentToken())) +
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string("'")
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);
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m_scanner->next();
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return op;
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}
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ASTPointer<ASTString> ParserBase::expectIdentifierToken()
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{
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if (m_scanner->currentToken() != Token::Identifier)
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fatalParserError(
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string("Expected identifier, got '") +
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string(Token::name(m_scanner->currentToken())) +
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string("'")
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);
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return getLiteralAndAdvance();
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}
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ASTPointer<ASTString> ParserBase::getLiteralAndAdvance()
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{
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ASTPointer<ASTString> identifier = make_shared<ASTString>(m_scanner->currentLiteral());
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m_scanner->next();
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return identifier;
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}
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void ParserBase::parserError(string const& _description)
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{
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auto err = make_shared<Error>(Error::Type::ParserError);
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*err <<
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errinfo_sourceLocation(SourceLocation(position(), position(), sourceName())) <<
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errinfo_comment(_description);
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m_errors.push_back(err);
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}
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void ParserBase::fatalParserError(string const& _description)
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{
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parserError(_description);
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BOOST_THROW_EXCEPTION(FatalError());
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}
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