mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
2347 lines
68 KiB
C++
2347 lines
68 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum 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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cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2014
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* Solidity data types
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*/
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#include <libsolidity/ast/Types.h>
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#include <limits>
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#include <boost/range/adaptor/reversed.hpp>
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#include <libdevcore/CommonIO.h>
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#include <libdevcore/CommonData.h>
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#include <libdevcore/SHA3.h>
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#include <libdevcore/UTF8.h>
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#include <libsolidity/interface/Utils.h>
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#include <libsolidity/ast/AST.h>
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using namespace std;
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using namespace dev;
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using namespace dev::solidity;
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void StorageOffsets::computeOffsets(TypePointers const& _types)
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{
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bigint slotOffset = 0;
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unsigned byteOffset = 0;
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map<size_t, pair<u256, unsigned>> offsets;
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for (size_t i = 0; i < _types.size(); ++i)
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{
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TypePointer const& type = _types[i];
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if (!type->canBeStored())
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continue;
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if (byteOffset + type->storageBytes() > 32)
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{
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// would overflow, go to next slot
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++slotOffset;
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byteOffset = 0;
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}
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if (slotOffset >= bigint(1) << 256)
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BOOST_THROW_EXCEPTION(Error(Error::Type::TypeError) << errinfo_comment("Object too large for storage."));
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offsets[i] = make_pair(u256(slotOffset), byteOffset);
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solAssert(type->storageSize() >= 1, "Invalid storage size.");
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if (type->storageSize() == 1 && byteOffset + type->storageBytes() <= 32)
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byteOffset += type->storageBytes();
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else
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{
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slotOffset += type->storageSize();
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byteOffset = 0;
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}
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}
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if (byteOffset > 0)
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++slotOffset;
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if (slotOffset >= bigint(1) << 256)
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BOOST_THROW_EXCEPTION(Error(Error::Type::TypeError) << errinfo_comment("Object too large for storage."));
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m_storageSize = u256(slotOffset);
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swap(m_offsets, offsets);
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}
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pair<u256, unsigned> const* StorageOffsets::offset(size_t _index) const
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{
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if (m_offsets.count(_index))
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return &m_offsets.at(_index);
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else
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return nullptr;
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}
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MemberList& MemberList::operator=(MemberList&& _other)
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{
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assert(&_other != this);
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m_memberTypes = move(_other.m_memberTypes);
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m_storageOffsets = move(_other.m_storageOffsets);
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return *this;
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}
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void MemberList::combine(MemberList const & _other)
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{
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m_memberTypes += _other.m_memberTypes;
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}
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pair<u256, unsigned> const* MemberList::memberStorageOffset(string const& _name) const
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{
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if (!m_storageOffsets)
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{
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TypePointers memberTypes;
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memberTypes.reserve(m_memberTypes.size());
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for (auto const& member: m_memberTypes)
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memberTypes.push_back(member.type);
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m_storageOffsets.reset(new StorageOffsets());
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m_storageOffsets->computeOffsets(memberTypes);
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}
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for (size_t index = 0; index < m_memberTypes.size(); ++index)
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if (m_memberTypes[index].name == _name)
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return m_storageOffsets->offset(index);
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return nullptr;
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}
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u256 const& MemberList::storageSize() const
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{
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// trigger lazy computation
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memberStorageOffset("");
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return m_storageOffsets->storageSize();
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}
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TypePointer Type::fromElementaryTypeName(ElementaryTypeNameToken const& _type)
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{
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solAssert(Token::isElementaryTypeName(_type.token()),
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"Expected an elementary type name but got " + _type.toString()
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);
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Token::Value token = _type.token();
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unsigned m = _type.firstNumber();
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unsigned n = _type.secondNumber();
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switch (token)
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{
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case Token::IntM:
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return make_shared<IntegerType>(m, IntegerType::Modifier::Signed);
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case Token::UIntM:
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return make_shared<IntegerType>(m, IntegerType::Modifier::Unsigned);
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case Token::BytesM:
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return make_shared<FixedBytesType>(m);
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case Token::FixedMxN:
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return make_shared<FixedPointType>(m, n, FixedPointType::Modifier::Signed);
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case Token::UFixedMxN:
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return make_shared<FixedPointType>(m, n, FixedPointType::Modifier::Unsigned);
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case Token::Int:
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return make_shared<IntegerType>(256, IntegerType::Modifier::Signed);
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case Token::UInt:
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return make_shared<IntegerType>(256, IntegerType::Modifier::Unsigned);
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case Token::Fixed:
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return make_shared<FixedPointType>(128, 128, FixedPointType::Modifier::Signed);
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case Token::UFixed:
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return make_shared<FixedPointType>(128, 128, FixedPointType::Modifier::Unsigned);
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case Token::Byte:
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return make_shared<FixedBytesType>(1);
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case Token::Address:
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return make_shared<IntegerType>(0, IntegerType::Modifier::Address);
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case Token::Bool:
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return make_shared<BoolType>();
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case Token::Bytes:
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return make_shared<ArrayType>(DataLocation::Storage);
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case Token::String:
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return make_shared<ArrayType>(DataLocation::Storage, true);
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//no types found
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default:
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BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment(
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"Unable to convert elementary typename " + _type.toString() + " to type."
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));
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}
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}
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TypePointer Type::fromElementaryTypeName(string const& _name)
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{
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unsigned short firstNum;
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unsigned short secondNum;
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Token::Value token;
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tie(token, firstNum, secondNum) = Token::fromIdentifierOrKeyword(_name);
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return fromElementaryTypeName(ElementaryTypeNameToken(token, firstNum, secondNum));
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}
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TypePointer Type::forLiteral(Literal const& _literal)
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{
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switch (_literal.token())
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{
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case Token::TrueLiteral:
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case Token::FalseLiteral:
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return make_shared<BoolType>();
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case Token::Number:
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{
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tuple<bool, rational> validLiteral = RationalNumberType::isValidLiteral(_literal);
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if (get<0>(validLiteral) == true)
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return make_shared<RationalNumberType>(get<1>(validLiteral));
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else
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return TypePointer();
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}
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case Token::StringLiteral:
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return make_shared<StringLiteralType>(_literal);
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default:
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return TypePointer();
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}
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}
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TypePointer Type::commonType(TypePointer const& _a, TypePointer const& _b)
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{
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if (_b->isImplicitlyConvertibleTo(*_a))
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return _a;
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else if (_a->isImplicitlyConvertibleTo(*_b))
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return _b;
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else
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return TypePointer();
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}
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MemberList const& Type::members(ContractDefinition const* _currentScope) const
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{
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if (!m_members[_currentScope])
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{
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MemberList::MemberMap members = nativeMembers(_currentScope);
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if (_currentScope)
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members += boundFunctions(*this, *_currentScope);
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m_members[_currentScope] = unique_ptr<MemberList>(new MemberList(move(members)));
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}
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return *m_members[_currentScope];
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}
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MemberList::MemberMap Type::boundFunctions(Type const& _type, ContractDefinition const& _scope)
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{
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// Normalise data location of type.
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TypePointer type = ReferenceType::copyForLocationIfReference(DataLocation::Storage, _type.shared_from_this());
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set<Declaration const*> seenFunctions;
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MemberList::MemberMap members;
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for (ContractDefinition const* contract: _scope.annotation().linearizedBaseContracts)
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for (UsingForDirective const* ufd: contract->usingForDirectives())
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{
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if (ufd->typeName() && *type != *ReferenceType::copyForLocationIfReference(
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DataLocation::Storage,
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ufd->typeName()->annotation().type
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))
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continue;
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auto const& library = dynamic_cast<ContractDefinition const&>(
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*ufd->libraryName().annotation().referencedDeclaration
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);
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for (FunctionDefinition const* function: library.definedFunctions())
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{
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if (!function->isVisibleInDerivedContracts() || seenFunctions.count(function))
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continue;
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seenFunctions.insert(function);
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FunctionType funType(*function, false);
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if (auto fun = funType.asMemberFunction(true, true))
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members.push_back(MemberList::Member(function->name(), fun, function));
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}
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}
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return members;
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}
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IntegerType::IntegerType(int _bits, IntegerType::Modifier _modifier):
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m_bits(_bits), m_modifier(_modifier)
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{
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if (isAddress())
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m_bits = 160;
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solAssert(
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m_bits > 0 && m_bits <= 256 && m_bits % 8 == 0,
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"Invalid bit number for integer type: " + dev::toString(_bits)
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);
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}
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bool IntegerType::isImplicitlyConvertibleTo(Type const& _convertTo) const
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{
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if (_convertTo.category() == category())
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{
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IntegerType const& convertTo = dynamic_cast<IntegerType const&>(_convertTo);
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if (convertTo.m_bits < m_bits)
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return false;
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if (isAddress())
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return convertTo.isAddress();
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else if (isSigned())
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return convertTo.isSigned();
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else
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return !convertTo.isSigned() || convertTo.m_bits > m_bits;
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}
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else if (_convertTo.category() == Category::FixedPoint)
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{
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FixedPointType const& convertTo = dynamic_cast<FixedPointType const&>(_convertTo);
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if (convertTo.integerBits() < m_bits || isAddress())
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return false;
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else if (isSigned())
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return convertTo.isSigned();
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else
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return !convertTo.isSigned() || convertTo.integerBits() > m_bits;
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}
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else
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return false;
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}
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bool IntegerType::isExplicitlyConvertibleTo(Type const& _convertTo) const
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{
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return _convertTo.category() == category() ||
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_convertTo.category() == Category::Contract ||
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_convertTo.category() == Category::Enum ||
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_convertTo.category() == Category::FixedBytes ||
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_convertTo.category() == Category::FixedPoint;
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}
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TypePointer IntegerType::unaryOperatorResult(Token::Value _operator) const
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{
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// "delete" is ok for all integer types
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if (_operator == Token::Delete)
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return make_shared<TupleType>();
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// no further unary operators for addresses
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else if (isAddress())
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return TypePointer();
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// for non-address integers, we allow +, -, ++ and --
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else if (_operator == Token::Add || _operator == Token::Sub ||
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_operator == Token::Inc || _operator == Token::Dec ||
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_operator == Token::BitNot)
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return shared_from_this();
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else
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return TypePointer();
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}
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bool IntegerType::operator==(Type const& _other) const
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{
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if (_other.category() != category())
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return false;
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IntegerType const& other = dynamic_cast<IntegerType const&>(_other);
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return other.m_bits == m_bits && other.m_modifier == m_modifier;
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}
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string IntegerType::toString(bool) const
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{
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if (isAddress())
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return "address";
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string prefix = isSigned() ? "int" : "uint";
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return prefix + dev::toString(m_bits);
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}
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TypePointer IntegerType::binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const
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{
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if (
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_other->category() != Category::RationalNumber &&
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_other->category() != Category::FixedPoint &&
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_other->category() != category()
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)
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return TypePointer();
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auto commonType = Type::commonType(shared_from_this(), _other); //might be a integer or fixed point
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if (!commonType)
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return TypePointer();
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// All integer types can be compared
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if (Token::isCompareOp(_operator))
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return commonType;
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if (Token::isBooleanOp(_operator))
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return TypePointer();
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// Nothing else can be done with addresses
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if (auto intType = dynamic_pointer_cast<IntegerType const>(commonType))
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{
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if (intType->isAddress())
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return TypePointer();
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}
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else if (auto fixType = dynamic_pointer_cast<FixedPointType const>(commonType))
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if (Token::Exp == _operator)
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return TypePointer();
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return commonType;
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}
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MemberList::MemberMap IntegerType::nativeMembers(ContractDefinition const*) const
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{
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if (isAddress())
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return {
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{"balance", make_shared<IntegerType >(256)},
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{"call", make_shared<FunctionType>(strings(), strings{"bool"}, FunctionType::Location::Bare, true, false, true)},
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{"callcode", make_shared<FunctionType>(strings(), strings{"bool"}, FunctionType::Location::BareCallCode, true, false, true)},
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{"delegatecall", make_shared<FunctionType>(strings(), strings{"bool"}, FunctionType::Location::BareDelegateCall, true)},
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{"send", make_shared<FunctionType>(strings{"uint"}, strings{"bool"}, FunctionType::Location::Send)}
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};
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else
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return MemberList::MemberMap();
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}
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FixedPointType::FixedPointType(int _integerBits, int _fractionalBits, FixedPointType::Modifier _modifier):
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m_integerBits(_integerBits), m_fractionalBits(_fractionalBits), m_modifier(_modifier)
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{
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solAssert(
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m_integerBits + m_fractionalBits > 0 &&
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m_integerBits + m_fractionalBits <= 256 &&
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m_integerBits % 8 == 0 &&
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m_fractionalBits % 8 == 0,
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"Invalid bit number(s) for fixed type: " +
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dev::toString(_integerBits) + "x" + dev::toString(_fractionalBits)
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);
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}
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bool FixedPointType::isImplicitlyConvertibleTo(Type const& _convertTo) const
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{
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if (_convertTo.category() == category())
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{
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FixedPointType const& convertTo = dynamic_cast<FixedPointType const&>(_convertTo);
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if (convertTo.m_integerBits < m_integerBits || convertTo.m_fractionalBits < m_fractionalBits)
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return false;
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else if (isSigned())
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return convertTo.isSigned();
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else
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return !convertTo.isSigned() || (convertTo.m_integerBits > m_integerBits);
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}
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return false;
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}
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bool FixedPointType::isExplicitlyConvertibleTo(Type const& _convertTo) const
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{
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return _convertTo.category() == category() ||
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_convertTo.category() == Category::Integer ||
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_convertTo.category() == Category::FixedBytes;
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}
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TypePointer FixedPointType::unaryOperatorResult(Token::Value _operator) const
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{
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// "delete" is ok for all fixed types
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if (_operator == Token::Delete)
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return make_shared<TupleType>();
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// for fixed, we allow +, -, ++ and --
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else if (
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_operator == Token::Add ||
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_operator == Token::Sub ||
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_operator == Token::Inc ||
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_operator == Token::Dec
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)
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return shared_from_this();
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else
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return TypePointer();
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}
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bool FixedPointType::operator==(Type const& _other) const
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{
|
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if (_other.category() != category())
|
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return false;
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FixedPointType const& other = dynamic_cast<FixedPointType const&>(_other);
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return other.m_integerBits == m_integerBits && other.m_fractionalBits == m_fractionalBits && other.m_modifier == m_modifier;
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}
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string FixedPointType::toString(bool) const
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{
|
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string prefix = isSigned() ? "fixed" : "ufixed";
|
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return prefix + dev::toString(m_integerBits) + "x" + dev::toString(m_fractionalBits);
|
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}
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TypePointer FixedPointType::binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const
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|
{
|
|
if (
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_other->category() != Category::RationalNumber &&
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|
_other->category() != category() &&
|
|
_other->category() != Category::Integer
|
|
)
|
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return TypePointer();
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auto commonType = Type::commonType(shared_from_this(), _other); //might be fixed point or integer
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|
|
|
if (!commonType)
|
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return TypePointer();
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|
|
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// All fixed types can be compared
|
|
if (Token::isCompareOp(_operator))
|
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return commonType;
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|
if (Token::isBitOp(_operator) || Token::isBooleanOp(_operator))
|
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return TypePointer();
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if (auto fixType = dynamic_pointer_cast<FixedPointType const>(commonType))
|
|
{
|
|
if (Token::Exp == _operator)
|
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return TypePointer();
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}
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else if (auto intType = dynamic_pointer_cast<IntegerType const>(commonType))
|
|
if (intType->isAddress())
|
|
return TypePointer();
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|
return commonType;
|
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}
|
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|
|
tuple<bool, rational> RationalNumberType::isValidLiteral(Literal const& _literal)
|
|
{
|
|
rational x;
|
|
try
|
|
{
|
|
rational numerator;
|
|
rational denominator(1);
|
|
|
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auto radixPoint = find(_literal.value().begin(), _literal.value().end(), '.');
|
|
if (radixPoint != _literal.value().end())
|
|
{
|
|
if (
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!all_of(radixPoint + 1, _literal.value().end(), ::isdigit) ||
|
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!all_of(_literal.value().begin(), radixPoint, ::isdigit)
|
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)
|
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throw;
|
|
//Only decimal notation allowed here, leading zeros would switch to octal.
|
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auto fractionalBegin = find_if_not(
|
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radixPoint + 1,
|
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_literal.value().end(),
|
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[](char const& a) { return a == '0'; }
|
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);
|
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|
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denominator = bigint(string(fractionalBegin, _literal.value().end()));
|
|
denominator /= boost::multiprecision::pow(
|
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bigint(10),
|
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distance(radixPoint + 1, _literal.value().end())
|
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);
|
|
numerator = bigint(string(_literal.value().begin(), radixPoint));
|
|
x = numerator + denominator;
|
|
}
|
|
else
|
|
x = bigint(_literal.value());
|
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}
|
|
catch (...)
|
|
{
|
|
return make_tuple(false, rational(0));
|
|
}
|
|
switch (_literal.subDenomination())
|
|
{
|
|
case Literal::SubDenomination::None:
|
|
case Literal::SubDenomination::Wei:
|
|
case Literal::SubDenomination::Second:
|
|
break;
|
|
case Literal::SubDenomination::Szabo:
|
|
x *= bigint("1000000000000");
|
|
break;
|
|
case Literal::SubDenomination::Finney:
|
|
x *= bigint("1000000000000000");
|
|
break;
|
|
case Literal::SubDenomination::Ether:
|
|
x *= bigint("1000000000000000000");
|
|
break;
|
|
case Literal::SubDenomination::Minute:
|
|
x *= bigint("60");
|
|
break;
|
|
case Literal::SubDenomination::Hour:
|
|
x *= bigint("3600");
|
|
break;
|
|
case Literal::SubDenomination::Day:
|
|
x *= bigint("86400");
|
|
break;
|
|
case Literal::SubDenomination::Week:
|
|
x *= bigint("604800");
|
|
break;
|
|
case Literal::SubDenomination::Year:
|
|
x *= bigint("31536000");
|
|
break;
|
|
}
|
|
|
|
|
|
return make_tuple(true, x);
|
|
}
|
|
|
|
bool RationalNumberType::isImplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
if (_convertTo.category() == Category::Integer)
|
|
{
|
|
auto targetType = dynamic_cast<IntegerType const*>(&_convertTo);
|
|
if (m_value == 0)
|
|
return true;
|
|
if (isFractional())
|
|
return false;
|
|
int forSignBit = (targetType->isSigned() ? 1 : 0);
|
|
if (m_value > 0)
|
|
{
|
|
if (m_value.numerator() <= (u256(-1) >> (256 - targetType->numBits() + forSignBit)))
|
|
return true;
|
|
}
|
|
else if (targetType->isSigned() && -m_value.numerator() <= (u256(1) << (targetType->numBits() - forSignBit)))
|
|
return true;
|
|
return false;
|
|
}
|
|
else if (_convertTo.category() == Category::FixedPoint)
|
|
{
|
|
if (auto fixed = fixedPointType())
|
|
{
|
|
// We disallow implicit conversion if we would have to truncate (fixedPointType()
|
|
// can return a type that requires truncation).
|
|
rational value = m_value * (bigint(1) << fixed->fractionalBits());
|
|
return value.denominator() == 1 && fixed->isImplicitlyConvertibleTo(_convertTo);
|
|
}
|
|
return false;
|
|
}
|
|
else if (_convertTo.category() == Category::FixedBytes)
|
|
{
|
|
FixedBytesType const& fixedBytes = dynamic_cast<FixedBytesType const&>(_convertTo);
|
|
if (!isFractional())
|
|
return fixedBytes.numBytes() * 8 >= integerType()->numBits();
|
|
else
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool RationalNumberType::isExplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
TypePointer mobType = mobileType();
|
|
return mobType && mobType->isExplicitlyConvertibleTo(_convertTo);
|
|
}
|
|
|
|
TypePointer RationalNumberType::unaryOperatorResult(Token::Value _operator) const
|
|
{
|
|
rational value;
|
|
switch (_operator)
|
|
{
|
|
case Token::BitNot:
|
|
if (isFractional())
|
|
return TypePointer();
|
|
value = ~m_value.numerator();
|
|
break;
|
|
case Token::Add:
|
|
value = +(m_value);
|
|
break;
|
|
case Token::Sub:
|
|
value = -(m_value);
|
|
break;
|
|
case Token::After:
|
|
return shared_from_this();
|
|
default:
|
|
return TypePointer();
|
|
}
|
|
return make_shared<RationalNumberType>(value);
|
|
}
|
|
|
|
TypePointer RationalNumberType::binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const
|
|
{
|
|
if (_other->category() == Category::Integer || _other->category() == Category::FixedPoint)
|
|
{
|
|
auto mobile = mobileType();
|
|
if (!mobile)
|
|
return TypePointer();
|
|
return mobile->binaryOperatorResult(_operator, _other);
|
|
}
|
|
else if (_other->category() != category())
|
|
return TypePointer();
|
|
|
|
RationalNumberType const& other = dynamic_cast<RationalNumberType const&>(*_other);
|
|
if (Token::isCompareOp(_operator))
|
|
{
|
|
// Since we do not have a "BoolConstantType", we have to do the acutal comparison
|
|
// at runtime and convert to mobile typse first. Such a comparison is not a very common
|
|
// use-case and will be optimized away.
|
|
TypePointer thisMobile = mobileType();
|
|
TypePointer otherMobile = other.mobileType();
|
|
if (!thisMobile || !otherMobile)
|
|
return TypePointer();
|
|
return thisMobile->binaryOperatorResult(_operator, otherMobile);
|
|
}
|
|
else
|
|
{
|
|
rational value;
|
|
bool fractional = isFractional() || other.isFractional();
|
|
switch (_operator)
|
|
{
|
|
//bit operations will only be enabled for integers and fixed types that resemble integers
|
|
case Token::BitOr:
|
|
if (fractional)
|
|
return TypePointer();
|
|
value = m_value.numerator() | other.m_value.numerator();
|
|
break;
|
|
case Token::BitXor:
|
|
if (fractional)
|
|
return TypePointer();
|
|
value = m_value.numerator() ^ other.m_value.numerator();
|
|
break;
|
|
case Token::BitAnd:
|
|
if (fractional)
|
|
return TypePointer();
|
|
value = m_value.numerator() & other.m_value.numerator();
|
|
break;
|
|
case Token::Add:
|
|
value = m_value + other.m_value;
|
|
break;
|
|
case Token::Sub:
|
|
value = m_value - other.m_value;
|
|
break;
|
|
case Token::Mul:
|
|
value = m_value * other.m_value;
|
|
break;
|
|
case Token::Div:
|
|
if (other.m_value == 0)
|
|
return TypePointer();
|
|
else
|
|
value = m_value / other.m_value;
|
|
break;
|
|
case Token::Mod:
|
|
if (other.m_value == 0)
|
|
return TypePointer();
|
|
else if (fractional)
|
|
{
|
|
rational tempValue = m_value / other.m_value;
|
|
value = m_value - (tempValue.numerator() / tempValue.denominator()) * other.m_value;
|
|
}
|
|
else
|
|
value = m_value.numerator() % other.m_value.numerator();
|
|
break;
|
|
case Token::Exp:
|
|
{
|
|
using boost::multiprecision::pow;
|
|
if (other.isFractional())
|
|
return TypePointer();
|
|
else if (abs(other.m_value) > numeric_limits<uint32_t>::max())
|
|
return TypePointer(); // This will need too much memory to represent.
|
|
uint32_t exponent = abs(other.m_value).numerator().convert_to<uint32_t>();
|
|
bigint numerator = pow(m_value.numerator(), exponent);
|
|
bigint denominator = pow(m_value.denominator(), exponent);
|
|
if (other.m_value >= 0)
|
|
value = rational(numerator, denominator);
|
|
else
|
|
// invert
|
|
value = rational(denominator, numerator);
|
|
break;
|
|
}
|
|
default:
|
|
return TypePointer();
|
|
}
|
|
return make_shared<RationalNumberType>(value);
|
|
}
|
|
}
|
|
|
|
bool RationalNumberType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
RationalNumberType const& other = dynamic_cast<RationalNumberType const&>(_other);
|
|
return m_value == other.m_value;
|
|
}
|
|
|
|
string RationalNumberType::toString(bool) const
|
|
{
|
|
if (!isFractional())
|
|
return "int_const " + m_value.numerator().str();
|
|
return "rational_const " + m_value.numerator().str() + '/' + m_value.denominator().str();
|
|
}
|
|
|
|
u256 RationalNumberType::literalValue(Literal const*) const
|
|
{
|
|
// We ignore the literal and hope that the type was correctly determined to represent
|
|
// its value.
|
|
|
|
u256 value;
|
|
bigint shiftedValue;
|
|
|
|
if (!isFractional())
|
|
shiftedValue = m_value.numerator();
|
|
else
|
|
{
|
|
auto fixed = fixedPointType();
|
|
solAssert(!!fixed, "");
|
|
rational shifted = m_value * (bigint(1) << fixed->fractionalBits());
|
|
// truncate
|
|
shiftedValue = shifted.numerator() / shifted.denominator();
|
|
}
|
|
|
|
// we ignore the literal and hope that the type was correctly determined
|
|
solAssert(shiftedValue <= u256(-1), "Integer constant too large.");
|
|
solAssert(shiftedValue >= -(bigint(1) << 255), "Number constant too small.");
|
|
|
|
if (m_value >= 0)
|
|
value = u256(shiftedValue);
|
|
else
|
|
value = s2u(s256(shiftedValue));
|
|
return value;
|
|
}
|
|
|
|
TypePointer RationalNumberType::mobileType() const
|
|
{
|
|
if (!isFractional())
|
|
return integerType();
|
|
else
|
|
return fixedPointType();
|
|
}
|
|
|
|
shared_ptr<IntegerType const> RationalNumberType::integerType() const
|
|
{
|
|
solAssert(!isFractional(), "integerType() called for fractional number.");
|
|
bigint value = m_value.numerator();
|
|
bool negative = (value < 0);
|
|
if (negative) // convert to positive number of same bit requirements
|
|
value = ((0 - value) - 1) << 1;
|
|
if (value > u256(-1))
|
|
return shared_ptr<IntegerType const>();
|
|
else
|
|
return make_shared<IntegerType>(
|
|
max(bytesRequired(value), 1u) * 8,
|
|
negative ? IntegerType::Modifier::Signed : IntegerType::Modifier::Unsigned
|
|
);
|
|
}
|
|
|
|
shared_ptr<FixedPointType const> RationalNumberType::fixedPointType() const
|
|
{
|
|
bool negative = (m_value < 0);
|
|
unsigned fractionalBits = 0;
|
|
rational value = abs(m_value); // We care about the sign later.
|
|
rational maxValue = negative ?
|
|
rational(bigint(1) << 255, 1):
|
|
rational((bigint(1) << 256) - 1, 1);
|
|
|
|
while (value * 0x100 <= maxValue && value.denominator() != 1 && fractionalBits < 256)
|
|
{
|
|
value *= 0x100;
|
|
fractionalBits += 8;
|
|
}
|
|
|
|
if (value > maxValue)
|
|
return shared_ptr<FixedPointType const>();
|
|
// u256(v) is the actual value that will be put on the stack
|
|
// From here on, very similar to integerType()
|
|
bigint v = value.numerator() / value.denominator();
|
|
if (negative)
|
|
// modify value to satisfy bit requirements for negative numbers:
|
|
// add one bit for sign and decrement because negative numbers can be larger
|
|
v = (v - 1) << 1;
|
|
|
|
if (v > u256(-1))
|
|
return shared_ptr<FixedPointType const>();
|
|
|
|
unsigned totalBits = bytesRequired(v) * 8;
|
|
solAssert(totalBits <= 256, "");
|
|
unsigned integerBits = totalBits >= fractionalBits ? totalBits - fractionalBits : 0;
|
|
// Special case: Numbers between -1 and 0 have their sign bit in the fractional part.
|
|
if (negative && abs(m_value) < 1 && totalBits > fractionalBits)
|
|
{
|
|
fractionalBits += 8;
|
|
integerBits = 0;
|
|
}
|
|
|
|
if (integerBits > 256 || fractionalBits > 256 || fractionalBits + integerBits > 256)
|
|
return shared_ptr<FixedPointType const>();
|
|
if (integerBits == 0 && fractionalBits == 0)
|
|
{
|
|
integerBits = 0;
|
|
fractionalBits = 8;
|
|
}
|
|
|
|
return make_shared<FixedPointType>(
|
|
integerBits, fractionalBits,
|
|
negative ? FixedPointType::Modifier::Signed : FixedPointType::Modifier::Unsigned
|
|
);
|
|
}
|
|
|
|
StringLiteralType::StringLiteralType(Literal const& _literal):
|
|
m_value(_literal.value())
|
|
{
|
|
}
|
|
|
|
bool StringLiteralType::isImplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
if (auto fixedBytes = dynamic_cast<FixedBytesType const*>(&_convertTo))
|
|
return size_t(fixedBytes->numBytes()) >= m_value.size();
|
|
else if (auto arrayType = dynamic_cast<ArrayType const*>(&_convertTo))
|
|
return
|
|
arrayType->isByteArray() &&
|
|
!(arrayType->dataStoredIn(DataLocation::Storage) && arrayType->isPointer());
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool StringLiteralType::operator==(const Type& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
return m_value == dynamic_cast<StringLiteralType const&>(_other).m_value;
|
|
}
|
|
|
|
std::string StringLiteralType::toString(bool) const
|
|
{
|
|
size_t invalidSequence;
|
|
|
|
if (!dev::validate(m_value, invalidSequence))
|
|
return "literal_string (contains invalid UTF-8 sequence at position " + dev::toString(invalidSequence) + ")";
|
|
|
|
return "literal_string \"" + m_value + "\"";
|
|
}
|
|
|
|
TypePointer StringLiteralType::mobileType() const
|
|
{
|
|
return make_shared<ArrayType>(DataLocation::Memory, true);
|
|
}
|
|
|
|
shared_ptr<FixedBytesType> FixedBytesType::smallestTypeForLiteral(string const& _literal)
|
|
{
|
|
if (_literal.length() <= 32)
|
|
return make_shared<FixedBytesType>(_literal.length());
|
|
return shared_ptr<FixedBytesType>();
|
|
}
|
|
|
|
FixedBytesType::FixedBytesType(int _bytes): m_bytes(_bytes)
|
|
{
|
|
solAssert(m_bytes >= 0 && m_bytes <= 32,
|
|
"Invalid byte number for fixed bytes type: " + dev::toString(m_bytes));
|
|
}
|
|
|
|
bool FixedBytesType::isImplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
if (_convertTo.category() != category())
|
|
return false;
|
|
FixedBytesType const& convertTo = dynamic_cast<FixedBytesType const&>(_convertTo);
|
|
return convertTo.m_bytes >= m_bytes;
|
|
}
|
|
|
|
bool FixedBytesType::isExplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
return _convertTo.category() == Category::Integer ||
|
|
_convertTo.category() == Category::FixedPoint ||
|
|
_convertTo.category() == Category::Contract ||
|
|
_convertTo.category() == category();
|
|
}
|
|
|
|
TypePointer FixedBytesType::unaryOperatorResult(Token::Value _operator) const
|
|
{
|
|
// "delete" and "~" is okay for FixedBytesType
|
|
if (_operator == Token::Delete)
|
|
return make_shared<TupleType>();
|
|
else if (_operator == Token::BitNot)
|
|
return shared_from_this();
|
|
|
|
return TypePointer();
|
|
}
|
|
|
|
TypePointer FixedBytesType::binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const
|
|
{
|
|
auto commonType = dynamic_pointer_cast<FixedBytesType const>(Type::commonType(shared_from_this(), _other));
|
|
if (!commonType)
|
|
return TypePointer();
|
|
|
|
// FixedBytes can be compared and have bitwise operators applied to them
|
|
if (Token::isCompareOp(_operator) || Token::isBitOp(_operator))
|
|
return commonType;
|
|
|
|
return TypePointer();
|
|
}
|
|
|
|
MemberList::MemberMap FixedBytesType::nativeMembers(const ContractDefinition*) const
|
|
{
|
|
return MemberList::MemberMap{MemberList::Member{"length", make_shared<IntegerType>(8)}};
|
|
}
|
|
|
|
bool FixedBytesType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
FixedBytesType const& other = dynamic_cast<FixedBytesType const&>(_other);
|
|
return other.m_bytes == m_bytes;
|
|
}
|
|
|
|
u256 BoolType::literalValue(Literal const* _literal) const
|
|
{
|
|
solAssert(_literal, "");
|
|
if (_literal->token() == Token::TrueLiteral)
|
|
return u256(1);
|
|
else if (_literal->token() == Token::FalseLiteral)
|
|
return u256(0);
|
|
else
|
|
BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Bool type constructed from non-boolean literal."));
|
|
}
|
|
|
|
TypePointer BoolType::unaryOperatorResult(Token::Value _operator) const
|
|
{
|
|
if (_operator == Token::Delete)
|
|
return make_shared<TupleType>();
|
|
return (_operator == Token::Not) ? shared_from_this() : TypePointer();
|
|
}
|
|
|
|
TypePointer BoolType::binaryOperatorResult(Token::Value _operator, TypePointer const& _other) const
|
|
{
|
|
if (category() != _other->category())
|
|
return TypePointer();
|
|
if (Token::isCompareOp(_operator) || _operator == Token::And || _operator == Token::Or)
|
|
return _other;
|
|
else
|
|
return TypePointer();
|
|
}
|
|
|
|
bool ContractType::isImplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
if (*this == _convertTo)
|
|
return true;
|
|
if (_convertTo.category() == Category::Integer)
|
|
return dynamic_cast<IntegerType const&>(_convertTo).isAddress();
|
|
if (_convertTo.category() == Category::Contract)
|
|
{
|
|
auto const& bases = contractDefinition().annotation().linearizedBaseContracts;
|
|
if (m_super && bases.size() <= 1)
|
|
return false;
|
|
return find(m_super ? ++bases.begin() : bases.begin(), bases.end(),
|
|
&dynamic_cast<ContractType const&>(_convertTo).contractDefinition()) != bases.end();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool ContractType::isExplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
return
|
|
isImplicitlyConvertibleTo(_convertTo) ||
|
|
_convertTo.category() == Category::Integer ||
|
|
_convertTo.category() == Category::Contract;
|
|
}
|
|
|
|
TypePointer ContractType::unaryOperatorResult(Token::Value _operator) const
|
|
{
|
|
return _operator == Token::Delete ? make_shared<TupleType>() : TypePointer();
|
|
}
|
|
|
|
TypePointer ReferenceType::unaryOperatorResult(Token::Value _operator) const
|
|
{
|
|
if (_operator != Token::Delete)
|
|
return TypePointer();
|
|
// delete can be used on everything except calldata references or storage pointers
|
|
// (storage references are ok)
|
|
switch (location())
|
|
{
|
|
case DataLocation::CallData:
|
|
return TypePointer();
|
|
case DataLocation::Memory:
|
|
return make_shared<TupleType>();
|
|
case DataLocation::Storage:
|
|
return m_isPointer ? TypePointer() : make_shared<TupleType>();
|
|
default:
|
|
solAssert(false, "");
|
|
}
|
|
return TypePointer();
|
|
}
|
|
|
|
TypePointer ReferenceType::copyForLocationIfReference(DataLocation _location, TypePointer const& _type)
|
|
{
|
|
if (auto type = dynamic_cast<ReferenceType const*>(_type.get()))
|
|
return type->copyForLocation(_location, false);
|
|
return _type;
|
|
}
|
|
|
|
TypePointer ReferenceType::copyForLocationIfReference(TypePointer const& _type) const
|
|
{
|
|
return copyForLocationIfReference(m_location, _type);
|
|
}
|
|
|
|
string ReferenceType::stringForReferencePart() const
|
|
{
|
|
switch (m_location)
|
|
{
|
|
case DataLocation::Storage:
|
|
return string("storage ") + (m_isPointer ? "pointer" : "ref");
|
|
case DataLocation::CallData:
|
|
return "calldata";
|
|
case DataLocation::Memory:
|
|
return "memory";
|
|
}
|
|
solAssert(false, "");
|
|
return "";
|
|
}
|
|
|
|
bool ArrayType::isImplicitlyConvertibleTo(const Type& _convertTo) const
|
|
{
|
|
if (_convertTo.category() != category())
|
|
return false;
|
|
auto& convertTo = dynamic_cast<ArrayType const&>(_convertTo);
|
|
if (convertTo.isByteArray() != isByteArray() || convertTo.isString() != isString())
|
|
return false;
|
|
// memory/calldata to storage can be converted, but only to a direct storage reference
|
|
if (convertTo.location() == DataLocation::Storage && location() != DataLocation::Storage && convertTo.isPointer())
|
|
return false;
|
|
if (convertTo.location() == DataLocation::CallData && location() != convertTo.location())
|
|
return false;
|
|
if (convertTo.location() == DataLocation::Storage && !convertTo.isPointer())
|
|
{
|
|
// Less restrictive conversion, since we need to copy anyway.
|
|
if (!baseType()->isImplicitlyConvertibleTo(*convertTo.baseType()))
|
|
return false;
|
|
if (convertTo.isDynamicallySized())
|
|
return true;
|
|
return !isDynamicallySized() && convertTo.length() >= length();
|
|
}
|
|
else
|
|
{
|
|
// Conversion to storage pointer or to memory, we de not copy element-for-element here, so
|
|
// require that the base type is the same, not only convertible.
|
|
// This disallows assignment of nested dynamic arrays from storage to memory for now.
|
|
if (
|
|
*copyForLocationIfReference(location(), baseType()) !=
|
|
*copyForLocationIfReference(location(), convertTo.baseType())
|
|
)
|
|
return false;
|
|
if (isDynamicallySized() != convertTo.isDynamicallySized())
|
|
return false;
|
|
// We also require that the size is the same.
|
|
if (!isDynamicallySized() && length() != convertTo.length())
|
|
return false;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
bool ArrayType::isExplicitlyConvertibleTo(const Type& _convertTo) const
|
|
{
|
|
if (isImplicitlyConvertibleTo(_convertTo))
|
|
return true;
|
|
// allow conversion bytes <-> string
|
|
if (_convertTo.category() != category())
|
|
return false;
|
|
auto& convertTo = dynamic_cast<ArrayType const&>(_convertTo);
|
|
if (convertTo.location() != location())
|
|
return false;
|
|
if (!isByteArray() || !convertTo.isByteArray())
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
bool ArrayType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
ArrayType const& other = dynamic_cast<ArrayType const&>(_other);
|
|
if (
|
|
!ReferenceType::operator==(other) ||
|
|
other.isByteArray() != isByteArray() ||
|
|
other.isString() != isString() ||
|
|
other.isDynamicallySized() != isDynamicallySized()
|
|
)
|
|
return false;
|
|
if (*other.baseType() != *baseType())
|
|
return false;
|
|
return isDynamicallySized() || length() == other.length();
|
|
}
|
|
|
|
unsigned ArrayType::calldataEncodedSize(bool _padded) const
|
|
{
|
|
if (isDynamicallySized())
|
|
return 32;
|
|
bigint size = bigint(length()) * (isByteArray() ? 1 : baseType()->calldataEncodedSize(_padded));
|
|
size = ((size + 31) / 32) * 32;
|
|
solAssert(size <= numeric_limits<unsigned>::max(), "Array size does not fit unsigned.");
|
|
return unsigned(size);
|
|
}
|
|
|
|
u256 ArrayType::storageSize() const
|
|
{
|
|
if (isDynamicallySized())
|
|
return 1;
|
|
|
|
bigint size;
|
|
unsigned baseBytes = baseType()->storageBytes();
|
|
if (baseBytes == 0)
|
|
size = 1;
|
|
else if (baseBytes < 32)
|
|
{
|
|
unsigned itemsPerSlot = 32 / baseBytes;
|
|
size = (bigint(length()) + (itemsPerSlot - 1)) / itemsPerSlot;
|
|
}
|
|
else
|
|
size = bigint(length()) * baseType()->storageSize();
|
|
if (size >= bigint(1) << 256)
|
|
BOOST_THROW_EXCEPTION(Error(Error::Type::TypeError) << errinfo_comment("Array too large for storage."));
|
|
return max<u256>(1, u256(size));
|
|
}
|
|
|
|
unsigned ArrayType::sizeOnStack() const
|
|
{
|
|
if (m_location == DataLocation::CallData)
|
|
// offset [length] (stack top)
|
|
return 1 + (isDynamicallySized() ? 1 : 0);
|
|
else
|
|
// storage slot or memory offset
|
|
// byte offset inside storage value is omitted
|
|
return 1;
|
|
}
|
|
|
|
string ArrayType::toString(bool _short) const
|
|
{
|
|
string ret;
|
|
if (isString())
|
|
ret = "string";
|
|
else if (isByteArray())
|
|
ret = "bytes";
|
|
else
|
|
{
|
|
ret = baseType()->toString(_short) + "[";
|
|
if (!isDynamicallySized())
|
|
ret += length().str();
|
|
ret += "]";
|
|
}
|
|
if (!_short)
|
|
ret += " " + stringForReferencePart();
|
|
return ret;
|
|
}
|
|
|
|
string ArrayType::canonicalName(bool _addDataLocation) const
|
|
{
|
|
string ret;
|
|
if (isString())
|
|
ret = "string";
|
|
else if (isByteArray())
|
|
ret = "bytes";
|
|
else
|
|
{
|
|
ret = baseType()->canonicalName(false) + "[";
|
|
if (!isDynamicallySized())
|
|
ret += length().str();
|
|
ret += "]";
|
|
}
|
|
if (_addDataLocation && location() == DataLocation::Storage)
|
|
ret += " storage";
|
|
return ret;
|
|
}
|
|
|
|
MemberList::MemberMap ArrayType::nativeMembers(ContractDefinition const*) const
|
|
{
|
|
MemberList::MemberMap members;
|
|
if (!isString())
|
|
{
|
|
members.push_back({"length", make_shared<IntegerType>(256)});
|
|
if (isDynamicallySized() && location() == DataLocation::Storage)
|
|
members.push_back({"push", make_shared<FunctionType>(
|
|
TypePointers{baseType()},
|
|
TypePointers{make_shared<IntegerType>(256)},
|
|
strings{string()},
|
|
strings{string()},
|
|
isByteArray() ? FunctionType::Location::ByteArrayPush : FunctionType::Location::ArrayPush
|
|
)});
|
|
}
|
|
return members;
|
|
}
|
|
|
|
TypePointer ArrayType::encodingType() const
|
|
{
|
|
if (location() == DataLocation::Storage)
|
|
return make_shared<IntegerType>(256);
|
|
else
|
|
return this->copyForLocation(DataLocation::Memory, true);
|
|
}
|
|
|
|
TypePointer ArrayType::decodingType() const
|
|
{
|
|
if (location() == DataLocation::Storage)
|
|
return make_shared<IntegerType>(256);
|
|
else
|
|
return shared_from_this();
|
|
}
|
|
|
|
TypePointer ArrayType::interfaceType(bool _inLibrary) const
|
|
{
|
|
if (_inLibrary && location() == DataLocation::Storage)
|
|
return shared_from_this();
|
|
|
|
if (m_arrayKind != ArrayKind::Ordinary)
|
|
return this->copyForLocation(DataLocation::Memory, true);
|
|
TypePointer baseExt = m_baseType->interfaceType(_inLibrary);
|
|
if (!baseExt)
|
|
return TypePointer();
|
|
if (m_baseType->category() == Category::Array && m_baseType->isDynamicallySized())
|
|
return TypePointer();
|
|
|
|
if (isDynamicallySized())
|
|
return make_shared<ArrayType>(DataLocation::Memory, baseExt);
|
|
else
|
|
return make_shared<ArrayType>(DataLocation::Memory, baseExt, m_length);
|
|
}
|
|
|
|
u256 ArrayType::memorySize() const
|
|
{
|
|
solAssert(!isDynamicallySized(), "");
|
|
solAssert(m_location == DataLocation::Memory, "");
|
|
bigint size = bigint(m_length) * m_baseType->memoryHeadSize();
|
|
solAssert(size <= numeric_limits<unsigned>::max(), "Array size does not fit u256.");
|
|
return u256(size);
|
|
}
|
|
|
|
TypePointer ArrayType::copyForLocation(DataLocation _location, bool _isPointer) const
|
|
{
|
|
auto copy = make_shared<ArrayType>(_location);
|
|
copy->m_isPointer = _isPointer;
|
|
copy->m_arrayKind = m_arrayKind;
|
|
copy->m_baseType = copy->copyForLocationIfReference(m_baseType);
|
|
copy->m_hasDynamicLength = m_hasDynamicLength;
|
|
copy->m_length = m_length;
|
|
return copy;
|
|
}
|
|
|
|
bool ContractType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
ContractType const& other = dynamic_cast<ContractType const&>(_other);
|
|
return other.m_contract == m_contract && other.m_super == m_super;
|
|
}
|
|
|
|
string ContractType::toString(bool) const
|
|
{
|
|
return
|
|
string(m_contract.isLibrary() ? "library " : "contract ") +
|
|
string(m_super ? "super " : "") +
|
|
m_contract.name();
|
|
}
|
|
|
|
string ContractType::canonicalName(bool) const
|
|
{
|
|
return m_contract.annotation().canonicalName;
|
|
}
|
|
|
|
MemberList::MemberMap ContractType::nativeMembers(ContractDefinition const*) const
|
|
{
|
|
// All address members and all interface functions
|
|
MemberList::MemberMap members(IntegerType(120, IntegerType::Modifier::Address).nativeMembers(nullptr));
|
|
if (m_super)
|
|
{
|
|
// add the most derived of all functions which are visible in derived contracts
|
|
for (ContractDefinition const* base: m_contract.annotation().linearizedBaseContracts)
|
|
for (FunctionDefinition const* function: base->definedFunctions())
|
|
{
|
|
if (!function->isVisibleInDerivedContracts())
|
|
continue;
|
|
auto functionType = make_shared<FunctionType>(*function, true);
|
|
bool functionWithEqualArgumentsFound = false;
|
|
for (auto const& member: members)
|
|
{
|
|
if (member.name != function->name())
|
|
continue;
|
|
auto memberType = dynamic_cast<FunctionType const*>(member.type.get());
|
|
solAssert(!!memberType, "Override changes type.");
|
|
if (!memberType->hasEqualArgumentTypes(*functionType))
|
|
continue;
|
|
functionWithEqualArgumentsFound = true;
|
|
break;
|
|
}
|
|
if (!functionWithEqualArgumentsFound)
|
|
members.push_back(MemberList::Member(
|
|
function->name(),
|
|
functionType,
|
|
function
|
|
));
|
|
}
|
|
}
|
|
else if (!m_contract.isLibrary())
|
|
{
|
|
for (auto const& it: m_contract.interfaceFunctions())
|
|
members.push_back(MemberList::Member(
|
|
it.second->declaration().name(),
|
|
it.second->asMemberFunction(m_contract.isLibrary()),
|
|
&it.second->declaration()
|
|
));
|
|
}
|
|
return members;
|
|
}
|
|
|
|
shared_ptr<FunctionType const> const& ContractType::newExpressionType() const
|
|
{
|
|
if (!m_constructorType)
|
|
m_constructorType = FunctionType::newExpressionType(m_contract);
|
|
return m_constructorType;
|
|
}
|
|
|
|
vector<tuple<VariableDeclaration const*, u256, unsigned>> ContractType::stateVariables() const
|
|
{
|
|
vector<VariableDeclaration const*> variables;
|
|
for (ContractDefinition const* contract: boost::adaptors::reverse(m_contract.annotation().linearizedBaseContracts))
|
|
for (VariableDeclaration const* variable: contract->stateVariables())
|
|
if (!variable->isConstant())
|
|
variables.push_back(variable);
|
|
TypePointers types;
|
|
for (auto variable: variables)
|
|
types.push_back(variable->annotation().type);
|
|
StorageOffsets offsets;
|
|
offsets.computeOffsets(types);
|
|
|
|
vector<tuple<VariableDeclaration const*, u256, unsigned>> variablesAndOffsets;
|
|
for (size_t index = 0; index < variables.size(); ++index)
|
|
if (auto const* offset = offsets.offset(index))
|
|
variablesAndOffsets.push_back(make_tuple(variables[index], offset->first, offset->second));
|
|
return variablesAndOffsets;
|
|
}
|
|
|
|
bool StructType::isImplicitlyConvertibleTo(const Type& _convertTo) const
|
|
{
|
|
if (_convertTo.category() != category())
|
|
return false;
|
|
auto& convertTo = dynamic_cast<StructType const&>(_convertTo);
|
|
// memory/calldata to storage can be converted, but only to a direct storage reference
|
|
if (convertTo.location() == DataLocation::Storage && location() != DataLocation::Storage && convertTo.isPointer())
|
|
return false;
|
|
if (convertTo.location() == DataLocation::CallData && location() != convertTo.location())
|
|
return false;
|
|
return this->m_struct == convertTo.m_struct;
|
|
}
|
|
|
|
bool StructType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
StructType const& other = dynamic_cast<StructType const&>(_other);
|
|
return ReferenceType::operator==(other) && other.m_struct == m_struct;
|
|
}
|
|
|
|
unsigned StructType::calldataEncodedSize(bool _padded) const
|
|
{
|
|
unsigned size = 0;
|
|
for (auto const& member: members(nullptr))
|
|
if (!member.type->canLiveOutsideStorage())
|
|
return 0;
|
|
else
|
|
{
|
|
unsigned memberSize = member.type->calldataEncodedSize(_padded);
|
|
if (memberSize == 0)
|
|
return 0;
|
|
size += memberSize;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
u256 StructType::memorySize() const
|
|
{
|
|
u256 size;
|
|
for (auto const& member: members(nullptr))
|
|
if (member.type->canLiveOutsideStorage())
|
|
size += member.type->memoryHeadSize();
|
|
return size;
|
|
}
|
|
|
|
u256 StructType::storageSize() const
|
|
{
|
|
return max<u256>(1, members(nullptr).storageSize());
|
|
}
|
|
|
|
string StructType::toString(bool _short) const
|
|
{
|
|
string ret = "struct " + m_struct.name();
|
|
if (!_short)
|
|
ret += " " + stringForReferencePart();
|
|
return ret;
|
|
}
|
|
|
|
MemberList::MemberMap StructType::nativeMembers(ContractDefinition const*) const
|
|
{
|
|
MemberList::MemberMap members;
|
|
for (ASTPointer<VariableDeclaration> const& variable: m_struct.members())
|
|
{
|
|
TypePointer type = variable->annotation().type;
|
|
// Skip all mapping members if we are not in storage.
|
|
if (location() != DataLocation::Storage && !type->canLiveOutsideStorage())
|
|
continue;
|
|
members.push_back(MemberList::Member(
|
|
variable->name(),
|
|
copyForLocationIfReference(type),
|
|
variable.get())
|
|
);
|
|
}
|
|
return members;
|
|
}
|
|
|
|
TypePointer StructType::interfaceType(bool _inLibrary) const
|
|
{
|
|
if (_inLibrary && location() == DataLocation::Storage)
|
|
return shared_from_this();
|
|
else
|
|
return TypePointer();
|
|
}
|
|
|
|
TypePointer StructType::copyForLocation(DataLocation _location, bool _isPointer) const
|
|
{
|
|
auto copy = make_shared<StructType>(m_struct, _location);
|
|
copy->m_isPointer = _isPointer;
|
|
return copy;
|
|
}
|
|
|
|
string StructType::canonicalName(bool _addDataLocation) const
|
|
{
|
|
string ret = m_struct.annotation().canonicalName;
|
|
if (_addDataLocation && location() == DataLocation::Storage)
|
|
ret += " storage";
|
|
return ret;
|
|
}
|
|
|
|
FunctionTypePointer StructType::constructorType() const
|
|
{
|
|
TypePointers paramTypes;
|
|
strings paramNames;
|
|
for (auto const& member: members(nullptr))
|
|
{
|
|
if (!member.type->canLiveOutsideStorage())
|
|
continue;
|
|
paramNames.push_back(member.name);
|
|
paramTypes.push_back(copyForLocationIfReference(DataLocation::Memory, member.type));
|
|
}
|
|
return make_shared<FunctionType>(
|
|
paramTypes,
|
|
TypePointers{copyForLocation(DataLocation::Memory, false)},
|
|
paramNames,
|
|
strings(),
|
|
FunctionType::Location::Internal
|
|
);
|
|
}
|
|
|
|
pair<u256, unsigned> const& StructType::storageOffsetsOfMember(string const& _name) const
|
|
{
|
|
auto const* offsets = members(nullptr).memberStorageOffset(_name);
|
|
solAssert(offsets, "Storage offset of non-existing member requested.");
|
|
return *offsets;
|
|
}
|
|
|
|
u256 StructType::memoryOffsetOfMember(string const& _name) const
|
|
{
|
|
u256 offset;
|
|
for (auto const& member: members(nullptr))
|
|
if (member.name == _name)
|
|
return offset;
|
|
else
|
|
offset += member.type->memoryHeadSize();
|
|
solAssert(false, "Member not found in struct.");
|
|
return 0;
|
|
}
|
|
|
|
set<string> StructType::membersMissingInMemory() const
|
|
{
|
|
set<string> missing;
|
|
for (ASTPointer<VariableDeclaration> const& variable: m_struct.members())
|
|
if (!variable->annotation().type->canLiveOutsideStorage())
|
|
missing.insert(variable->name());
|
|
return missing;
|
|
}
|
|
|
|
TypePointer EnumType::unaryOperatorResult(Token::Value _operator) const
|
|
{
|
|
return _operator == Token::Delete ? make_shared<TupleType>() : TypePointer();
|
|
}
|
|
|
|
bool EnumType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
EnumType const& other = dynamic_cast<EnumType const&>(_other);
|
|
return other.m_enum == m_enum;
|
|
}
|
|
|
|
unsigned EnumType::storageBytes() const
|
|
{
|
|
size_t elements = m_enum.members().size();
|
|
if (elements <= 1)
|
|
return 1;
|
|
else
|
|
return dev::bytesRequired(elements - 1);
|
|
}
|
|
|
|
string EnumType::toString(bool) const
|
|
{
|
|
return string("enum ") + m_enum.name();
|
|
}
|
|
|
|
string EnumType::canonicalName(bool) const
|
|
{
|
|
return m_enum.annotation().canonicalName;
|
|
}
|
|
|
|
bool EnumType::isExplicitlyConvertibleTo(Type const& _convertTo) const
|
|
{
|
|
return _convertTo.category() == category() || _convertTo.category() == Category::Integer;
|
|
}
|
|
|
|
unsigned EnumType::memberValue(ASTString const& _member) const
|
|
{
|
|
unsigned index = 0;
|
|
for (ASTPointer<EnumValue> const& decl: m_enum.members())
|
|
{
|
|
if (decl->name() == _member)
|
|
return index;
|
|
++index;
|
|
}
|
|
BOOST_THROW_EXCEPTION(m_enum.createTypeError("Requested unknown enum value ." + _member));
|
|
}
|
|
|
|
bool TupleType::isImplicitlyConvertibleTo(Type const& _other) const
|
|
{
|
|
if (auto tupleType = dynamic_cast<TupleType const*>(&_other))
|
|
{
|
|
TypePointers const& targets = tupleType->components();
|
|
if (targets.empty())
|
|
return components().empty();
|
|
if (components().size() != targets.size() && !targets.front() && !targets.back())
|
|
return false; // (,a,) = (1,2,3,4) - unable to position `a` in the tuple.
|
|
size_t minNumValues = targets.size();
|
|
if (!targets.back() || !targets.front())
|
|
--minNumValues; // wildcards can also match 0 components
|
|
if (components().size() < minNumValues)
|
|
return false;
|
|
if (components().size() > targets.size() && targets.front() && targets.back())
|
|
return false; // larger source and no wildcard
|
|
bool fillRight = !targets.back() || targets.front();
|
|
for (size_t i = 0; i < min(targets.size(), components().size()); ++i)
|
|
{
|
|
auto const& s = components()[fillRight ? i : components().size() - i - 1];
|
|
auto const& t = targets[fillRight ? i : targets.size() - i - 1];
|
|
if (!s && t)
|
|
return false;
|
|
else if (s && t && !s->isImplicitlyConvertibleTo(*t))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool TupleType::operator==(Type const& _other) const
|
|
{
|
|
if (auto tupleType = dynamic_cast<TupleType const*>(&_other))
|
|
return components() == tupleType->components();
|
|
else
|
|
return false;
|
|
}
|
|
|
|
string TupleType::toString(bool _short) const
|
|
{
|
|
if (components().empty())
|
|
return "tuple()";
|
|
string str = "tuple(";
|
|
for (auto const& t: components())
|
|
str += (t ? t->toString(_short) : "") + ",";
|
|
str.pop_back();
|
|
return str + ")";
|
|
}
|
|
|
|
u256 TupleType::storageSize() const
|
|
{
|
|
BOOST_THROW_EXCEPTION(
|
|
InternalCompilerError() <<
|
|
errinfo_comment("Storage size of non-storable tuple type requested.")
|
|
);
|
|
}
|
|
|
|
unsigned TupleType::sizeOnStack() const
|
|
{
|
|
unsigned size = 0;
|
|
for (auto const& t: components())
|
|
size += t ? t->sizeOnStack() : 0;
|
|
return size;
|
|
}
|
|
|
|
TypePointer TupleType::mobileType() const
|
|
{
|
|
TypePointers mobiles;
|
|
for (auto const& c: components())
|
|
mobiles.push_back(c ? c->mobileType() : TypePointer());
|
|
return make_shared<TupleType>(mobiles);
|
|
}
|
|
|
|
TypePointer TupleType::closestTemporaryType(TypePointer const& _targetType) const
|
|
{
|
|
solAssert(!!_targetType, "");
|
|
TypePointers const& targetComponents = dynamic_cast<TupleType const&>(*_targetType).components();
|
|
bool fillRight = !targetComponents.empty() && (!targetComponents.back() || targetComponents.front());
|
|
TypePointers tempComponents(targetComponents.size());
|
|
for (size_t i = 0; i < min(targetComponents.size(), components().size()); ++i)
|
|
{
|
|
size_t si = fillRight ? i : components().size() - i - 1;
|
|
size_t ti = fillRight ? i : targetComponents.size() - i - 1;
|
|
if (components()[si] && targetComponents[ti])
|
|
tempComponents[ti] = components()[si]->closestTemporaryType(targetComponents[ti]);
|
|
}
|
|
return make_shared<TupleType>(tempComponents);
|
|
}
|
|
|
|
FunctionType::FunctionType(FunctionDefinition const& _function, bool _isInternal):
|
|
m_location(_isInternal ? Location::Internal : Location::External),
|
|
m_isConstant(_function.isDeclaredConst()),
|
|
m_isPayable(_function.isPayable()),
|
|
m_declaration(&_function)
|
|
{
|
|
TypePointers params;
|
|
vector<string> paramNames;
|
|
TypePointers retParams;
|
|
vector<string> retParamNames;
|
|
|
|
params.reserve(_function.parameters().size());
|
|
paramNames.reserve(_function.parameters().size());
|
|
for (ASTPointer<VariableDeclaration> const& var: _function.parameters())
|
|
{
|
|
paramNames.push_back(var->name());
|
|
params.push_back(var->annotation().type);
|
|
}
|
|
retParams.reserve(_function.returnParameters().size());
|
|
retParamNames.reserve(_function.returnParameters().size());
|
|
for (ASTPointer<VariableDeclaration> const& var: _function.returnParameters())
|
|
{
|
|
retParamNames.push_back(var->name());
|
|
retParams.push_back(var->annotation().type);
|
|
}
|
|
swap(params, m_parameterTypes);
|
|
swap(paramNames, m_parameterNames);
|
|
swap(retParams, m_returnParameterTypes);
|
|
swap(retParamNames, m_returnParameterNames);
|
|
}
|
|
|
|
FunctionType::FunctionType(VariableDeclaration const& _varDecl):
|
|
m_location(Location::External), m_isConstant(true), m_declaration(&_varDecl)
|
|
{
|
|
TypePointers paramTypes;
|
|
vector<string> paramNames;
|
|
auto returnType = _varDecl.annotation().type;
|
|
|
|
while (true)
|
|
{
|
|
if (auto mappingType = dynamic_cast<MappingType const*>(returnType.get()))
|
|
{
|
|
paramTypes.push_back(mappingType->keyType());
|
|
paramNames.push_back("");
|
|
returnType = mappingType->valueType();
|
|
}
|
|
else if (auto arrayType = dynamic_cast<ArrayType const*>(returnType.get()))
|
|
{
|
|
if (arrayType->isByteArray())
|
|
// Return byte arrays as as whole.
|
|
break;
|
|
returnType = arrayType->baseType();
|
|
paramNames.push_back("");
|
|
paramTypes.push_back(make_shared<IntegerType>(256));
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
TypePointers retParams;
|
|
vector<string> retParamNames;
|
|
if (auto structType = dynamic_cast<StructType const*>(returnType.get()))
|
|
{
|
|
for (auto const& member: structType->members(nullptr))
|
|
if (member.type->category() != Category::Mapping)
|
|
{
|
|
if (auto arrayType = dynamic_cast<ArrayType const*>(member.type.get()))
|
|
if (!arrayType->isByteArray())
|
|
continue;
|
|
retParams.push_back(member.type);
|
|
retParamNames.push_back(member.name);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
retParams.push_back(ReferenceType::copyForLocationIfReference(
|
|
DataLocation::Memory,
|
|
returnType
|
|
));
|
|
retParamNames.push_back("");
|
|
}
|
|
|
|
swap(paramTypes, m_parameterTypes);
|
|
swap(paramNames, m_parameterNames);
|
|
swap(retParams, m_returnParameterTypes);
|
|
swap(retParamNames, m_returnParameterNames);
|
|
}
|
|
|
|
FunctionType::FunctionType(EventDefinition const& _event):
|
|
m_location(Location::Event), m_isConstant(true), m_declaration(&_event)
|
|
{
|
|
TypePointers params;
|
|
vector<string> paramNames;
|
|
params.reserve(_event.parameters().size());
|
|
paramNames.reserve(_event.parameters().size());
|
|
for (ASTPointer<VariableDeclaration> const& var: _event.parameters())
|
|
{
|
|
paramNames.push_back(var->name());
|
|
params.push_back(var->annotation().type);
|
|
}
|
|
swap(params, m_parameterTypes);
|
|
swap(paramNames, m_parameterNames);
|
|
}
|
|
|
|
FunctionTypePointer FunctionType::newExpressionType(ContractDefinition const& _contract)
|
|
{
|
|
FunctionDefinition const* constructor = _contract.constructor();
|
|
TypePointers parameters;
|
|
strings parameterNames;
|
|
bool payable = false;
|
|
|
|
if (constructor)
|
|
{
|
|
for (ASTPointer<VariableDeclaration> const& var: constructor->parameters())
|
|
{
|
|
parameterNames.push_back(var->name());
|
|
parameters.push_back(var->annotation().type);
|
|
}
|
|
payable = constructor->isPayable();
|
|
}
|
|
return make_shared<FunctionType>(
|
|
parameters,
|
|
TypePointers{make_shared<ContractType>(_contract)},
|
|
parameterNames,
|
|
strings{""},
|
|
Location::Creation,
|
|
false,
|
|
nullptr,
|
|
false,
|
|
payable
|
|
);
|
|
}
|
|
|
|
vector<string> FunctionType::parameterNames() const
|
|
{
|
|
if (!bound())
|
|
return m_parameterNames;
|
|
return vector<string>(m_parameterNames.cbegin() + 1, m_parameterNames.cend());
|
|
}
|
|
|
|
TypePointers FunctionType::parameterTypes() const
|
|
{
|
|
if (!bound())
|
|
return m_parameterTypes;
|
|
return TypePointers(m_parameterTypes.cbegin() + 1, m_parameterTypes.cend());
|
|
}
|
|
|
|
bool FunctionType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
FunctionType const& other = dynamic_cast<FunctionType const&>(_other);
|
|
|
|
if (m_location != other.m_location)
|
|
return false;
|
|
if (m_isConstant != other.isConstant())
|
|
return false;
|
|
|
|
if (m_parameterTypes.size() != other.m_parameterTypes.size() ||
|
|
m_returnParameterTypes.size() != other.m_returnParameterTypes.size())
|
|
return false;
|
|
auto typeCompare = [](TypePointer const& _a, TypePointer const& _b) -> bool { return *_a == *_b; };
|
|
|
|
if (!equal(m_parameterTypes.cbegin(), m_parameterTypes.cend(),
|
|
other.m_parameterTypes.cbegin(), typeCompare))
|
|
return false;
|
|
if (!equal(m_returnParameterTypes.cbegin(), m_returnParameterTypes.cend(),
|
|
other.m_returnParameterTypes.cbegin(), typeCompare))
|
|
return false;
|
|
//@todo this is ugly, but cannot be prevented right now
|
|
if (m_gasSet != other.m_gasSet || m_valueSet != other.m_valueSet)
|
|
return false;
|
|
if (bound() != other.bound())
|
|
return false;
|
|
if (bound() && *selfType() != *other.selfType())
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
string FunctionType::toString(bool _short) const
|
|
{
|
|
string name = "function (";
|
|
for (auto it = m_parameterTypes.begin(); it != m_parameterTypes.end(); ++it)
|
|
name += (*it)->toString(_short) + (it + 1 == m_parameterTypes.end() ? "" : ",");
|
|
name += ") returns (";
|
|
for (auto it = m_returnParameterTypes.begin(); it != m_returnParameterTypes.end(); ++it)
|
|
name += (*it)->toString(_short) + (it + 1 == m_returnParameterTypes.end() ? "" : ",");
|
|
return name + ")";
|
|
}
|
|
|
|
u256 FunctionType::storageSize() const
|
|
{
|
|
BOOST_THROW_EXCEPTION(
|
|
InternalCompilerError()
|
|
<< errinfo_comment("Storage size of non-storable function type requested."));
|
|
}
|
|
|
|
unsigned FunctionType::sizeOnStack() const
|
|
{
|
|
Location location = m_location;
|
|
if (m_location == Location::SetGas || m_location == Location::SetValue)
|
|
{
|
|
solAssert(m_returnParameterTypes.size() == 1, "");
|
|
location = dynamic_cast<FunctionType const&>(*m_returnParameterTypes.front()).m_location;
|
|
}
|
|
|
|
unsigned size = 0;
|
|
if (location == Location::External || location == Location::CallCode || location == Location::DelegateCall)
|
|
size = 2;
|
|
else if (location == Location::Bare || location == Location::BareCallCode || location == Location::BareDelegateCall)
|
|
size = 1;
|
|
else if (location == Location::Internal)
|
|
size = 1;
|
|
else if (location == Location::ArrayPush || location == Location::ByteArrayPush)
|
|
size = 1;
|
|
if (m_gasSet)
|
|
size++;
|
|
if (m_valueSet)
|
|
size++;
|
|
if (bound())
|
|
size += m_parameterTypes.front()->sizeOnStack();
|
|
return size;
|
|
}
|
|
|
|
FunctionTypePointer FunctionType::interfaceFunctionType() const
|
|
{
|
|
// Note that m_declaration might also be a state variable!
|
|
solAssert(m_declaration, "Declaration needed to determine interface function type.");
|
|
bool isLibraryFunction = dynamic_cast<ContractDefinition const&>(*m_declaration->scope()).isLibrary();
|
|
|
|
TypePointers paramTypes;
|
|
TypePointers retParamTypes;
|
|
|
|
for (auto type: m_parameterTypes)
|
|
{
|
|
if (auto ext = type->interfaceType(isLibraryFunction))
|
|
paramTypes.push_back(ext);
|
|
else
|
|
return FunctionTypePointer();
|
|
}
|
|
for (auto type: m_returnParameterTypes)
|
|
{
|
|
if (auto ext = type->interfaceType(isLibraryFunction))
|
|
retParamTypes.push_back(ext);
|
|
else
|
|
return FunctionTypePointer();
|
|
}
|
|
auto variable = dynamic_cast<VariableDeclaration const*>(m_declaration);
|
|
if (variable && retParamTypes.empty())
|
|
return FunctionTypePointer();
|
|
|
|
return make_shared<FunctionType>(
|
|
paramTypes, retParamTypes,
|
|
m_parameterNames, m_returnParameterNames,
|
|
m_location, m_arbitraryParameters,
|
|
m_declaration, m_isConstant, m_isPayable
|
|
);
|
|
}
|
|
|
|
MemberList::MemberMap FunctionType::nativeMembers(ContractDefinition const*) const
|
|
{
|
|
switch (m_location)
|
|
{
|
|
case Location::External:
|
|
case Location::Creation:
|
|
case Location::ECRecover:
|
|
case Location::SHA256:
|
|
case Location::RIPEMD160:
|
|
case Location::Bare:
|
|
case Location::BareCallCode:
|
|
case Location::BareDelegateCall:
|
|
{
|
|
MemberList::MemberMap members;
|
|
if (m_location != Location::BareDelegateCall && m_location != Location::DelegateCall)
|
|
{
|
|
if (m_isPayable)
|
|
members.push_back(MemberList::Member(
|
|
"value",
|
|
make_shared<FunctionType>(
|
|
parseElementaryTypeVector({"uint"}),
|
|
TypePointers{copyAndSetGasOrValue(false, true)},
|
|
strings(),
|
|
strings(),
|
|
Location::SetValue,
|
|
false,
|
|
nullptr,
|
|
false,
|
|
false,
|
|
m_gasSet,
|
|
m_valueSet
|
|
)
|
|
));
|
|
}
|
|
if (m_location != Location::Creation)
|
|
members.push_back(MemberList::Member(
|
|
"gas",
|
|
make_shared<FunctionType>(
|
|
parseElementaryTypeVector({"uint"}),
|
|
TypePointers{copyAndSetGasOrValue(true, false)},
|
|
strings(),
|
|
strings(),
|
|
Location::SetGas,
|
|
false,
|
|
nullptr,
|
|
false,
|
|
false,
|
|
m_gasSet,
|
|
m_valueSet
|
|
)
|
|
));
|
|
return members;
|
|
}
|
|
default:
|
|
return MemberList::MemberMap();
|
|
}
|
|
}
|
|
|
|
bool FunctionType::canTakeArguments(TypePointers const& _argumentTypes, TypePointer const& _selfType) const
|
|
{
|
|
solAssert(!bound() || _selfType, "");
|
|
if (bound() && !_selfType->isImplicitlyConvertibleTo(*selfType()))
|
|
return false;
|
|
TypePointers paramTypes = parameterTypes();
|
|
if (takesArbitraryParameters())
|
|
return true;
|
|
else if (_argumentTypes.size() != paramTypes.size())
|
|
return false;
|
|
else
|
|
return equal(
|
|
_argumentTypes.cbegin(),
|
|
_argumentTypes.cend(),
|
|
paramTypes.cbegin(),
|
|
[](TypePointer const& argumentType, TypePointer const& parameterType)
|
|
{
|
|
return argumentType->isImplicitlyConvertibleTo(*parameterType);
|
|
}
|
|
);
|
|
}
|
|
|
|
bool FunctionType::hasEqualArgumentTypes(FunctionType const& _other) const
|
|
{
|
|
if (m_parameterTypes.size() != _other.m_parameterTypes.size())
|
|
return false;
|
|
return equal(
|
|
m_parameterTypes.cbegin(),
|
|
m_parameterTypes.cend(),
|
|
_other.m_parameterTypes.cbegin(),
|
|
[](TypePointer const& _a, TypePointer const& _b) -> bool { return *_a == *_b; }
|
|
);
|
|
}
|
|
|
|
bool FunctionType::isBareCall() const
|
|
{
|
|
switch (m_location)
|
|
{
|
|
case Location::Bare:
|
|
case Location::BareCallCode:
|
|
case Location::BareDelegateCall:
|
|
case Location::ECRecover:
|
|
case Location::SHA256:
|
|
case Location::RIPEMD160:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
string FunctionType::externalSignature() const
|
|
{
|
|
solAssert(m_declaration != nullptr, "External signature of function needs declaration");
|
|
|
|
bool _inLibrary = dynamic_cast<ContractDefinition const&>(*m_declaration->scope()).isLibrary();
|
|
|
|
string ret = m_declaration->name() + "(";
|
|
|
|
FunctionTypePointer external = interfaceFunctionType();
|
|
solAssert(!!external, "External function type requested.");
|
|
TypePointers externalParameterTypes = external->parameterTypes();
|
|
for (auto it = externalParameterTypes.cbegin(); it != externalParameterTypes.cend(); ++it)
|
|
{
|
|
solAssert(!!(*it), "Parameter should have external type");
|
|
ret += (*it)->canonicalName(_inLibrary) + (it + 1 == externalParameterTypes.cend() ? "" : ",");
|
|
}
|
|
|
|
return ret + ")";
|
|
}
|
|
|
|
u256 FunctionType::externalIdentifier() const
|
|
{
|
|
return FixedHash<4>::Arith(FixedHash<4>(dev::keccak256(externalSignature())));
|
|
}
|
|
|
|
TypePointers FunctionType::parseElementaryTypeVector(strings const& _types)
|
|
{
|
|
TypePointers pointers;
|
|
pointers.reserve(_types.size());
|
|
for (string const& type: _types)
|
|
pointers.push_back(Type::fromElementaryTypeName(type));
|
|
return pointers;
|
|
}
|
|
|
|
TypePointer FunctionType::copyAndSetGasOrValue(bool _setGas, bool _setValue) const
|
|
{
|
|
return make_shared<FunctionType>(
|
|
m_parameterTypes,
|
|
m_returnParameterTypes,
|
|
m_parameterNames,
|
|
m_returnParameterNames,
|
|
m_location,
|
|
m_arbitraryParameters,
|
|
m_declaration,
|
|
m_isConstant,
|
|
m_isPayable,
|
|
m_gasSet || _setGas,
|
|
m_valueSet || _setValue,
|
|
m_bound
|
|
);
|
|
}
|
|
|
|
FunctionTypePointer FunctionType::asMemberFunction(bool _inLibrary, bool _bound) const
|
|
{
|
|
TypePointers parameterTypes;
|
|
for (auto const& t: m_parameterTypes)
|
|
{
|
|
auto refType = dynamic_cast<ReferenceType const*>(t.get());
|
|
if (refType && refType->location() == DataLocation::CallData)
|
|
parameterTypes.push_back(refType->copyForLocation(DataLocation::Memory, false));
|
|
else
|
|
parameterTypes.push_back(t);
|
|
}
|
|
|
|
Location location = m_location;
|
|
if (_inLibrary)
|
|
{
|
|
solAssert(!!m_declaration, "Declaration has to be available.");
|
|
if (!m_declaration->isPublic())
|
|
location = Location::Internal; // will be inlined
|
|
else
|
|
location = Location::DelegateCall;
|
|
}
|
|
|
|
TypePointers returnParameterTypes = m_returnParameterTypes;
|
|
if (location != Location::Internal)
|
|
{
|
|
// Alter dynamic types to be non-accessible.
|
|
for (auto& param: returnParameterTypes)
|
|
if (param->isDynamicallySized())
|
|
param = make_shared<InaccessibleDynamicType>();
|
|
}
|
|
|
|
return make_shared<FunctionType>(
|
|
parameterTypes,
|
|
returnParameterTypes,
|
|
m_parameterNames,
|
|
m_returnParameterNames,
|
|
location,
|
|
m_arbitraryParameters,
|
|
m_declaration,
|
|
m_isConstant,
|
|
m_isPayable,
|
|
m_gasSet,
|
|
m_valueSet,
|
|
_bound
|
|
);
|
|
}
|
|
|
|
vector<string> const FunctionType::parameterTypeNames(bool _addDataLocation) const
|
|
{
|
|
vector<string> names;
|
|
for (TypePointer const& t: parameterTypes())
|
|
names.push_back(t->canonicalName(_addDataLocation));
|
|
|
|
return names;
|
|
}
|
|
|
|
vector<string> const FunctionType::returnParameterTypeNames(bool _addDataLocation) const
|
|
{
|
|
vector<string> names;
|
|
for (TypePointer const& t: m_returnParameterTypes)
|
|
names.push_back(t->canonicalName(_addDataLocation));
|
|
|
|
return names;
|
|
}
|
|
|
|
TypePointer FunctionType::selfType() const
|
|
{
|
|
solAssert(bound(), "Function is not bound.");
|
|
solAssert(m_parameterTypes.size() > 0, "Function has no self type.");
|
|
return m_parameterTypes.at(0);
|
|
}
|
|
|
|
ASTPointer<ASTString> FunctionType::documentation() const
|
|
{
|
|
auto function = dynamic_cast<Documented const*>(m_declaration);
|
|
if (function)
|
|
return function->documentation();
|
|
|
|
return ASTPointer<ASTString>();
|
|
}
|
|
|
|
bool MappingType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
MappingType const& other = dynamic_cast<MappingType const&>(_other);
|
|
return *other.m_keyType == *m_keyType && *other.m_valueType == *m_valueType;
|
|
}
|
|
|
|
string MappingType::toString(bool _short) const
|
|
{
|
|
return "mapping(" + keyType()->toString(_short) + " => " + valueType()->toString(_short) + ")";
|
|
}
|
|
|
|
string MappingType::canonicalName(bool) const
|
|
{
|
|
return "mapping(" + keyType()->canonicalName(false) + " => " + valueType()->canonicalName(false) + ")";
|
|
}
|
|
|
|
bool TypeType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
TypeType const& other = dynamic_cast<TypeType const&>(_other);
|
|
return *actualType() == *other.actualType();
|
|
}
|
|
|
|
u256 TypeType::storageSize() const
|
|
{
|
|
BOOST_THROW_EXCEPTION(
|
|
InternalCompilerError()
|
|
<< errinfo_comment("Storage size of non-storable type type requested."));
|
|
}
|
|
|
|
unsigned TypeType::sizeOnStack() const
|
|
{
|
|
if (auto contractType = dynamic_cast<ContractType const*>(m_actualType.get()))
|
|
if (contractType->contractDefinition().isLibrary())
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
MemberList::MemberMap TypeType::nativeMembers(ContractDefinition const* _currentScope) const
|
|
{
|
|
MemberList::MemberMap members;
|
|
if (m_actualType->category() == Category::Contract)
|
|
{
|
|
ContractDefinition const& contract = dynamic_cast<ContractType const&>(*m_actualType).contractDefinition();
|
|
bool isBase = false;
|
|
if (_currentScope != nullptr)
|
|
{
|
|
auto const& currentBases = _currentScope->annotation().linearizedBaseContracts;
|
|
isBase = (find(currentBases.begin(), currentBases.end(), &contract) != currentBases.end());
|
|
}
|
|
if (contract.isLibrary())
|
|
for (FunctionDefinition const* function: contract.definedFunctions())
|
|
if (function->isVisibleInDerivedContracts())
|
|
members.push_back(MemberList::Member(
|
|
function->name(),
|
|
FunctionType(*function).asMemberFunction(true),
|
|
function
|
|
));
|
|
if (isBase)
|
|
{
|
|
// We are accessing the type of a base contract, so add all public and protected
|
|
// members. Note that this does not add inherited functions on purpose.
|
|
for (Declaration const* decl: contract.inheritableMembers())
|
|
members.push_back(MemberList::Member(decl->name(), decl->type(), decl));
|
|
}
|
|
else
|
|
{
|
|
for (auto const& stru: contract.definedStructs())
|
|
members.push_back(MemberList::Member(stru->name(), stru->type(), stru));
|
|
for (auto const& enu: contract.definedEnums())
|
|
members.push_back(MemberList::Member(enu->name(), enu->type(), enu));
|
|
}
|
|
}
|
|
else if (m_actualType->category() == Category::Enum)
|
|
{
|
|
EnumDefinition const& enumDef = dynamic_cast<EnumType const&>(*m_actualType).enumDefinition();
|
|
auto enumType = make_shared<EnumType>(enumDef);
|
|
for (ASTPointer<EnumValue> const& enumValue: enumDef.members())
|
|
members.push_back(MemberList::Member(enumValue->name(), enumType));
|
|
}
|
|
return members;
|
|
}
|
|
|
|
ModifierType::ModifierType(const ModifierDefinition& _modifier)
|
|
{
|
|
TypePointers params;
|
|
params.reserve(_modifier.parameters().size());
|
|
for (ASTPointer<VariableDeclaration> const& var: _modifier.parameters())
|
|
params.push_back(var->annotation().type);
|
|
swap(params, m_parameterTypes);
|
|
}
|
|
|
|
u256 ModifierType::storageSize() const
|
|
{
|
|
BOOST_THROW_EXCEPTION(
|
|
InternalCompilerError()
|
|
<< errinfo_comment("Storage size of non-storable type type requested."));
|
|
}
|
|
|
|
bool ModifierType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
ModifierType const& other = dynamic_cast<ModifierType const&>(_other);
|
|
|
|
if (m_parameterTypes.size() != other.m_parameterTypes.size())
|
|
return false;
|
|
auto typeCompare = [](TypePointer const& _a, TypePointer const& _b) -> bool { return *_a == *_b; };
|
|
|
|
if (!equal(m_parameterTypes.cbegin(), m_parameterTypes.cend(),
|
|
other.m_parameterTypes.cbegin(), typeCompare))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
string ModifierType::toString(bool _short) const
|
|
{
|
|
string name = "modifier (";
|
|
for (auto it = m_parameterTypes.begin(); it != m_parameterTypes.end(); ++it)
|
|
name += (*it)->toString(_short) + (it + 1 == m_parameterTypes.end() ? "" : ",");
|
|
return name + ")";
|
|
}
|
|
|
|
bool ModuleType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
return &m_sourceUnit == &dynamic_cast<ModuleType const&>(_other).m_sourceUnit;
|
|
}
|
|
|
|
MemberList::MemberMap ModuleType::nativeMembers(ContractDefinition const*) const
|
|
{
|
|
MemberList::MemberMap symbols;
|
|
for (auto const& symbolName: m_sourceUnit.annotation().exportedSymbols)
|
|
for (Declaration const* symbol: symbolName.second)
|
|
symbols.push_back(MemberList::Member(symbolName.first, symbol->type(), symbol));
|
|
return symbols;
|
|
}
|
|
|
|
string ModuleType::toString(bool) const
|
|
{
|
|
return string("module \"") + m_sourceUnit.annotation().path + string("\"");
|
|
}
|
|
|
|
bool MagicType::operator==(Type const& _other) const
|
|
{
|
|
if (_other.category() != category())
|
|
return false;
|
|
MagicType const& other = dynamic_cast<MagicType const&>(_other);
|
|
return other.m_kind == m_kind;
|
|
}
|
|
|
|
MemberList::MemberMap MagicType::nativeMembers(ContractDefinition const*) const
|
|
{
|
|
switch (m_kind)
|
|
{
|
|
case Kind::Block:
|
|
return MemberList::MemberMap({
|
|
{"coinbase", make_shared<IntegerType>(0, IntegerType::Modifier::Address)},
|
|
{"timestamp", make_shared<IntegerType>(256)},
|
|
{"blockhash", make_shared<FunctionType>(strings{"uint"}, strings{"bytes32"}, FunctionType::Location::BlockHash)},
|
|
{"difficulty", make_shared<IntegerType>(256)},
|
|
{"number", make_shared<IntegerType>(256)},
|
|
{"gaslimit", make_shared<IntegerType>(256)}
|
|
});
|
|
case Kind::Message:
|
|
return MemberList::MemberMap({
|
|
{"sender", make_shared<IntegerType>(0, IntegerType::Modifier::Address)},
|
|
{"gas", make_shared<IntegerType>(256)},
|
|
{"value", make_shared<IntegerType>(256)},
|
|
{"data", make_shared<ArrayType>(DataLocation::CallData)},
|
|
{"sig", make_shared<FixedBytesType>(4)}
|
|
});
|
|
case Kind::Transaction:
|
|
return MemberList::MemberMap({
|
|
{"origin", make_shared<IntegerType>(0, IntegerType::Modifier::Address)},
|
|
{"gasprice", make_shared<IntegerType>(256)}
|
|
});
|
|
default:
|
|
BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Unknown kind of magic."));
|
|
}
|
|
}
|
|
|
|
string MagicType::toString(bool) const
|
|
{
|
|
switch (m_kind)
|
|
{
|
|
case Kind::Block:
|
|
return "block";
|
|
case Kind::Message:
|
|
return "msg";
|
|
case Kind::Transaction:
|
|
return "tx";
|
|
default:
|
|
BOOST_THROW_EXCEPTION(InternalCompilerError() << errinfo_comment("Unknown kind of magic."));
|
|
}
|
|
}
|