mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
174 lines
4.5 KiB
C++
174 lines
4.5 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <libsolidity/interface/Exceptions.h>
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#include <libdevcore/Common.h>
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#include <map>
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#include <string>
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#include <vector>
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#include <cstdio>
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namespace dev
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{
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namespace solidity
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{
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namespace smt
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{
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enum class CheckResult
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{
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SAT, UNSAT, UNKNOWN
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};
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enum class Sort
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{
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Int, Bool
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};
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class Expression
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{
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friend class SMTLib2Interface;
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/// Manual constructor, should only be used by SMTLib2Interface and the class itself.
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Expression(std::string _name, std::vector<Expression> _arguments):
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m_name(std::move(_name)), m_arguments(std::move(_arguments)) {}
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public:
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Expression(size_t _number): m_name(std::to_string(_number)) {}
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Expression(u256 const& _number): m_name(_number.str()) {}
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Expression(bigint const& _number): m_name(_number.str()) {}
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Expression(Expression const& _other) = default;
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Expression(Expression&& _other) = default;
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Expression& operator=(Expression const& _other) = default;
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Expression& operator=(Expression&& _other) = default;
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friend Expression operator!(Expression _a)
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{
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return Expression("not", _a);
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}
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friend Expression operator&&(Expression _a, Expression _b)
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{
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return Expression("and", _a, _b);
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}
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friend Expression operator||(Expression _a, Expression _b)
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{
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return Expression("or", _a, _b);
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}
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friend Expression operator==(Expression _a, Expression _b)
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{
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return Expression("=", _a, _b);
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}
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friend Expression operator!=(Expression _a, Expression _b)
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{
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return !(_a == _b);
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}
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friend Expression operator<(Expression _a, Expression _b)
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{
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return Expression("<", std::move(_a), std::move(_b));
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}
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friend Expression operator<=(Expression _a, Expression _b)
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{
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return Expression("<=", std::move(_a), std::move(_b));
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}
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friend Expression operator>(Expression _a, Expression _b)
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{
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return Expression(">", std::move(_a), std::move(_b));
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}
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friend Expression operator>=(Expression _a, Expression _b)
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{
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return Expression(">=", std::move(_a), std::move(_b));
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}
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friend Expression operator+(Expression _a, Expression _b)
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{
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return Expression("+", std::move(_a), std::move(_b));
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}
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friend Expression operator-(Expression _a, Expression _b)
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{
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return Expression("-", std::move(_a), std::move(_b));
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}
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friend Expression operator*(Expression _a, Expression _b)
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{
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return Expression("*", std::move(_a), std::move(_b));
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}
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Expression operator()(Expression _a) const
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{
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solAssert(m_arguments.empty(), "Attempted function application to non-function.");
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return Expression(m_name, _a);
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}
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std::string toSExpr() const
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{
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if (m_arguments.empty())
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return m_name;
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std::string sexpr = "(" + m_name;
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for (auto const& arg: m_arguments)
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sexpr += " " + arg.toSExpr();
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sexpr += ")";
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return sexpr;
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}
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private:
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explicit Expression(std::string _name):
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Expression(std::move(_name), std::vector<Expression>{}) {}
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Expression(std::string _name, Expression _arg):
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Expression(std::move(_name), std::vector<Expression>{std::move(_arg)}) {}
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Expression(std::string _name, Expression _arg1, Expression _arg2):
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Expression(std::move(_name), std::vector<Expression>{std::move(_arg1), std::move(_arg2)}) {}
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std::string const m_name;
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std::vector<Expression> const m_arguments;
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};
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class SMTLib2Interface: public boost::noncopyable
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{
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public:
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SMTLib2Interface();
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~SMTLib2Interface();
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void reset();
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void push();
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void pop();
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Expression newFunction(std::string _name, Sort _domain, Sort _codomain);
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Expression newInteger(std::string _name);
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Expression newBool(std::string _name);
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void addAssertion(Expression _expr);
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std::pair<CheckResult, std::vector<std::string>> check(std::vector<Expression> const& _expressionsToEvaluate);
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// std::string eval(Expression _expr);
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private:
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void write(std::string _data);
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std::string communicate(std::string const& _input);
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std::vector<std::string> parseValues(std::string::const_iterator _start, std::string::const_iterator _end);
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std::vector<std::string> m_accumulatedOutput;
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// FILE* m_solverWrite = nullptr;
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// FILE* m_solverRead = nullptr;
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};
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}
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}
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}
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