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author | Lu Guanqun <guanqun.lu@gmail.com> | 2016-01-14 09:58:09 +0800 |
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committer | Lu Guanqun <guanqun.lu@gmail.com> | 2016-01-15 15:12:23 +0800 |
commit | e130bc7e7cc647b15c448133f725a060910da587 (patch) | |
tree | 1a9fc6044c17de3d22fb75c64fe70c987f89bc30 /libsolidity/analysis/SyntaxChecker.h | |
parent | 02c1aacd25652d39678005294ecbb6180a283134 (diff) | |
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check whether break/continue is in the loop
Diffstat (limited to 'libsolidity/analysis/SyntaxChecker.h')
-rw-r--r-- | libsolidity/analysis/SyntaxChecker.h | 58 |
1 files changed, 58 insertions, 0 deletions
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 <http://www.gnu.org/licenses/>. +*/ + +#pragma once + +#include <libsolidity/analysis/TypeChecker.h> +#include <libsolidity/ast/Types.h> +#include <libsolidity/ast/ASTAnnotations.h> +#include <libsolidity/ast/ASTForward.h> +#include <libsolidity/ast/ASTVisitor.h> + +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; +}; + +} +} |