From e130bc7e7cc647b15c448133f725a060910da587 Mon Sep 17 00:00:00 2001 From: Lu Guanqun Date: Thu, 14 Jan 2016 01:58:09 +0000 Subject: check whether break/continue is in the loop --- libsolidity/analysis/SyntaxChecker.h | 58 ++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 libsolidity/analysis/SyntaxChecker.h (limited to 'libsolidity/analysis/SyntaxChecker.h') diff --git a/libsolidity/analysis/SyntaxChecker.h b/libsolidity/analysis/SyntaxChecker.h new file mode 100644 index 00000000..66f6d94d --- /dev/null +++ b/libsolidity/analysis/SyntaxChecker.h @@ -0,0 +1,58 @@ +/* + This file is part of cpp-ethereum. + + cpp-ethereum 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. + + cpp-ethereum 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 cpp-ethereum. If not, see . +*/ + +#pragma once + +#include +#include +#include +#include +#include + +namespace dev +{ +namespace solidity +{ + +/** + * The module that performs syntax analysis on the AST: + * - whether continue/break is in a for/while loop. + */ +class SyntaxChecker : private ASTConstVisitor +{ +public: + /// @param _errors the reference to the list of errors and warnings to add them found during type checking. + SyntaxChecker(ErrorList& _errors): m_errors(_errors) {} + + bool checkSyntax(SourceUnit const& _sourceUnit); + +private: + /// Adds a new error to the list of errors. + void syntaxError(SourceLocation const& _location, std::string const& _description); + + virtual bool visit(WhileStatement const& _whileStatement) override; + virtual bool visit(ForStatement const& _forStatement) override; + virtual bool visit(Block const& _blockStatement) override; + virtual bool visit(IfStatement const& _ifStatement) override; + virtual bool visit(Continue const& _continueStatement) override; + virtual bool visit(Break const& _breakStatement) override; + + ErrorList& m_errors; +}; + +} +} -- cgit