mirror of
				https://github.com/ethereum/solidity
				synced 2023-10-03 13:03:40 +00:00 
			
		
		
		
	Prior to this half of the codebase used explicit deleted copy constructors, the others used boost::noncopyable.
		
			
				
	
	
		
			75 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			75 lines
		
	
	
		
			2.2 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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// SPDX-License-Identifier: GPL-3.0
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#pragma once
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#include <libsmtutil/SolverInterface.h>
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#if defined(__GLIBC__)
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// The CVC4 headers includes the deprecated system headers <ext/hash_map>
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// and <ext/hash_set>. These headers cause a warning that will break the
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// build, unless _GLIBCXX_PERMIT_BACKWARD_HASH is set.
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#define _GLIBCXX_PERMIT_BACKWARD_HASH
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#endif
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#include <cvc4/cvc4.h>
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#if defined(__GLIBC__)
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#undef _GLIBCXX_PERMIT_BACKWARD_HASH
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#endif
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namespace solidity::smtutil
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{
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class CVC4Interface: public SolverInterface
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{
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public:
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	/// Noncopyable.
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	CVC4Interface(CVC4Interface const&) = delete;
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	CVC4Interface& operator=(CVC4Interface const&) = delete;
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	CVC4Interface(std::optional<unsigned> _queryTimeout = {});
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	void reset() override;
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	void push() override;
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	void pop() override;
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	void declareVariable(std::string const&, SortPointer const&) override;
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	void addAssertion(Expression const& _expr) override;
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	std::pair<CheckResult, std::vector<std::string>> check(std::vector<Expression> const& _expressionsToEvaluate) override;
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private:
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	CVC4::Expr toCVC4Expr(Expression const& _expr);
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	CVC4::Type cvc4Sort(Sort const& _sort);
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	std::vector<CVC4::Type> cvc4Sort(std::vector<SortPointer> const& _sorts);
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	CVC4::ExprManager m_context;
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	CVC4::SmtEngine m_solver;
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	std::map<std::string, CVC4::Expr> m_variables;
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	// CVC4 "basic resources" limit.
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	// This is used to make the runs more deterministic and platform/machine independent.
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	// The tests start failing for CVC4 with less than 6000,
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	// so using double that.
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	static int const resourceLimit = 12000;
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};
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}
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