solidity/libsolidity/formal/SymbolicTypes.h
2019-04-17 16:30:11 +02:00

75 lines
2.8 KiB
C++

/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <libsolidity/formal/SolverInterface.h>
#include <libsolidity/formal/SymbolicVariables.h>
#include <libsolidity/ast/AST.h>
#include <libsolidity/ast/Types.h>
namespace dev
{
namespace solidity
{
/// Returns the SMT sort that models the Solidity type _type.
smt::SortPointer smtSort(Type const& _type);
std::vector<smt::SortPointer> smtSort(std::vector<TypePointer> const& _types);
/// Returns the SMT kind that models the Solidity type type category _category.
smt::Kind smtKind(Type::Category _category);
/// Returns true if type is fully supported (declaration and operations).
bool isSupportedType(Type::Category _category);
bool isSupportedType(Type const& _type);
/// Returns true if type is partially supported (declaration).
bool isSupportedTypeDeclaration(Type::Category _category);
bool isSupportedTypeDeclaration(Type const& _type);
bool isInteger(Type::Category _category);
bool isRational(Type::Category _category);
bool isFixedBytes(Type::Category _category);
bool isAddress(Type::Category _category);
bool isContract(Type::Category _category);
bool isEnum(Type::Category _category);
bool isNumber(Type::Category _category);
bool isBool(Type::Category _category);
bool isFunction(Type::Category _category);
bool isMapping(Type::Category _category);
bool isArray(Type::Category _category);
/// Returns a new symbolic variable, according to _type.
/// Also returns whether the type is abstract or not,
/// which is true for unsupported types.
std::pair<bool, std::shared_ptr<SymbolicVariable>> newSymbolicVariable(Type const& _type, std::string const& _uniqueName, smt::SolverInterface& _solver);
smt::Expression minValue(IntegerType const& _type);
smt::Expression maxValue(IntegerType const& _type);
namespace smt
{
void setSymbolicZeroValue(SymbolicVariable const& _variable, smt::SolverInterface& _interface);
void setSymbolicZeroValue(smt::Expression _expr, TypePointer const& _type, smt::SolverInterface& _interface);
void setSymbolicUnknownValue(SymbolicVariable const& _variable, smt::SolverInterface& _interface);
void setSymbolicUnknownValue(smt::Expression _expr, TypePointer const& _type, smt::SolverInterface& _interface);
}
}
}