mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
100 lines
2.4 KiB
C++
100 lines
2.4 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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#include <memory>
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#include <libsolidity/ast/AST.h>
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#include <libsolidity/analysis/SyntaxChecker.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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bool SyntaxChecker::checkSyntax(SourceUnit const& _sourceUnit)
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{
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_sourceUnit.accept(*this);
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return m_errors.empty();
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}
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void SyntaxChecker::syntaxError(SourceLocation const& _location, std::string const& _description)
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{
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auto err = make_shared<Error>(Error::Type::SyntaxError);
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*err <<
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errinfo_sourceLocation(_location) <<
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errinfo_comment(_description);
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m_errors.push_back(err);
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}
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bool SyntaxChecker::visit(ModifierDefinition const&)
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{
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m_placeholderFound = false;
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return true;
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}
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void SyntaxChecker::endVisit(ModifierDefinition const& _modifier)
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{
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if (!m_placeholderFound)
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syntaxError(_modifier.body().location(), "Modifier body does not contain '_'.");
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m_placeholderFound = false;
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}
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bool SyntaxChecker::visit(WhileStatement const&)
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{
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m_inLoopDepth++;
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return true;
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}
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void SyntaxChecker::endVisit(WhileStatement const& )
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{
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m_inLoopDepth--;
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}
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bool SyntaxChecker::visit(ForStatement const&)
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{
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m_inLoopDepth++;
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return true;
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}
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void SyntaxChecker::endVisit(ForStatement const&)
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{
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m_inLoopDepth--;
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}
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bool SyntaxChecker::visit(Continue const& _continueStatement)
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{
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if (m_inLoopDepth <= 0)
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// we're not in a for/while loop, report syntax error
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syntaxError(_continueStatement.location(), "\"continue\" has to be in a \"for\" or \"while\" loop.");
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return true;
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}
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bool SyntaxChecker::visit(Break const& _breakStatement)
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{
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if (m_inLoopDepth <= 0)
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// we're not in a for/while loop, report syntax error
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syntaxError(_breakStatement.location(), "\"break\" has to be in a \"for\" or \"while\" loop.");
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return true;
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}
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bool SyntaxChecker::visit(const PlaceholderStatement&)
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{
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m_placeholderFound = true;
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return true;
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}
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