mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
128 lines
3.6 KiB
C++
128 lines
3.6 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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#include <libsolidity/formal/SymbolicTypes.h>
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#include <libsolidity/ast/Types.h>
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#include <memory>
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using namespace std;
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using namespace dev::solidity;
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bool dev::solidity::isSupportedType(Type::Category _category)
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{
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return isNumber(_category) ||
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isBool(_category) ||
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isFunction(_category);
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}
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pair<bool, shared_ptr<SymbolicVariable>> dev::solidity::newSymbolicVariable(
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Type const& _type,
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std::string const& _uniqueName,
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smt::SolverInterface& _solver
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)
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{
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bool abstract = false;
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shared_ptr<SymbolicVariable> var;
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TypePointer type = _type.shared_from_this();
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if (!isSupportedType(_type))
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{
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abstract = true;
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var = make_shared<SymbolicIntVariable>(make_shared<IntegerType>(256), _uniqueName, _solver);
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}
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else if (isBool(_type.category()))
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var = make_shared<SymbolicBoolVariable>(type, _uniqueName, _solver);
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else if (isFunction(_type.category()))
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var = make_shared<SymbolicIntVariable>(make_shared<IntegerType>(256), _uniqueName, _solver);
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else if (isInteger(_type.category()))
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var = make_shared<SymbolicIntVariable>(type, _uniqueName, _solver);
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else if (isFixedBytes(_type.category()))
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{
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auto fixedBytesType = dynamic_cast<FixedBytesType const*>(type.get());
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solAssert(fixedBytesType, "");
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var = make_shared<SymbolicFixedBytesVariable>(fixedBytesType->numBytes(), _uniqueName, _solver);
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}
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else if (isAddress(_type.category()))
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var = make_shared<SymbolicAddressVariable>(_uniqueName, _solver);
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else if (isRational(_type.category()))
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{
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auto rational = dynamic_cast<RationalNumberType const*>(&_type);
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solAssert(rational, "");
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if (rational->isFractional())
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var = make_shared<SymbolicIntVariable>(make_shared<IntegerType>(256), _uniqueName, _solver);
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else
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var = make_shared<SymbolicIntVariable>(type, _uniqueName, _solver);
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}
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else
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solAssert(false, "");
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return make_pair(abstract, var);
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}
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bool dev::solidity::isSupportedType(Type const& _type)
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{
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return isSupportedType(_type.category());
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}
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bool dev::solidity::isInteger(Type::Category _category)
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{
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return _category == Type::Category::Integer;
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}
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bool dev::solidity::isRational(Type::Category _category)
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{
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return _category == Type::Category::RationalNumber;
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}
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bool dev::solidity::isFixedBytes(Type::Category _category)
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{
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return _category == Type::Category::FixedBytes;
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}
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bool dev::solidity::isAddress(Type::Category _category)
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{
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return _category == Type::Category::Address;
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}
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bool dev::solidity::isNumber(Type::Category _category)
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{
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return isInteger(_category) ||
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isRational(_category) ||
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isFixedBytes(_category) ||
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isAddress(_category);
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}
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bool dev::solidity::isBool(Type::Category _category)
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{
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return _category == Type::Category::Bool;
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}
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bool dev::solidity::isFunction(Type::Category _category)
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{
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return _category == Type::Category::Function;
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}
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smt::Expression dev::solidity::minValue(IntegerType const& _type)
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{
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return smt::Expression(_type.minValue());
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}
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smt::Expression dev::solidity::maxValue(IntegerType const& _type)
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{
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return smt::Expression(_type.maxValue());
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}
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