mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
542 lines
18 KiB
C++
542 lines
18 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libsolidity/ast/AST.h>
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#include <libsolidity/ast/TypeProvider.h>
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#include <boost/algorithm/string.hpp>
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#include <boost/algorithm/string/split.hpp>
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using namespace std;
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using namespace dev;
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using namespace solidity;
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BoolType const TypeProvider::m_boolean{};
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InaccessibleDynamicType const TypeProvider::m_inaccessibleDynamic{};
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/// The string and bytes unique_ptrs are initialized when they are first used because
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/// they rely on `byte` being available which we cannot guarantee in the static init context.
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unique_ptr<ArrayType> TypeProvider::m_bytesStorage;
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unique_ptr<ArrayType> TypeProvider::m_bytesMemory;
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unique_ptr<ArrayType> TypeProvider::m_stringStorage;
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unique_ptr<ArrayType> TypeProvider::m_stringMemory;
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TupleType const TypeProvider::m_emptyTuple{};
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AddressType const TypeProvider::m_payableAddress{StateMutability::Payable};
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AddressType const TypeProvider::m_address{StateMutability::NonPayable};
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array<unique_ptr<IntegerType>, 32> const TypeProvider::m_intM{{
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{make_unique<IntegerType>(8 * 1, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 2, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 3, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 4, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 5, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 6, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 7, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 8, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 9, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 10, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 11, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 12, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 13, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 14, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 15, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 16, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 17, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 18, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 19, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 20, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 21, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 22, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 23, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 24, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 25, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 26, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 27, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 28, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 29, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 30, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 31, IntegerType::Modifier::Signed)},
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{make_unique<IntegerType>(8 * 32, IntegerType::Modifier::Signed)}
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}};
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array<unique_ptr<IntegerType>, 32> const TypeProvider::m_uintM{{
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{make_unique<IntegerType>(8 * 1, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 2, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 3, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 4, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 5, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 6, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 7, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 8, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 9, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 10, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 11, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 12, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 13, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 14, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 15, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 16, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 17, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 18, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 19, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 20, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 21, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 22, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 23, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 24, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 25, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 26, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 27, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 28, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 29, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 30, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 31, IntegerType::Modifier::Unsigned)},
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{make_unique<IntegerType>(8 * 32, IntegerType::Modifier::Unsigned)}
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}};
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array<unique_ptr<FixedBytesType>, 32> const TypeProvider::m_bytesM{{
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{make_unique<FixedBytesType>(1)},
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{make_unique<FixedBytesType>(2)},
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{make_unique<FixedBytesType>(3)},
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{make_unique<FixedBytesType>(4)},
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{make_unique<FixedBytesType>(5)},
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{make_unique<FixedBytesType>(6)},
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{make_unique<FixedBytesType>(7)},
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{make_unique<FixedBytesType>(8)},
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{make_unique<FixedBytesType>(9)},
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{make_unique<FixedBytesType>(10)},
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{make_unique<FixedBytesType>(11)},
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{make_unique<FixedBytesType>(12)},
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{make_unique<FixedBytesType>(13)},
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{make_unique<FixedBytesType>(14)},
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{make_unique<FixedBytesType>(15)},
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{make_unique<FixedBytesType>(16)},
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{make_unique<FixedBytesType>(17)},
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{make_unique<FixedBytesType>(18)},
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{make_unique<FixedBytesType>(19)},
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{make_unique<FixedBytesType>(20)},
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{make_unique<FixedBytesType>(21)},
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{make_unique<FixedBytesType>(22)},
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{make_unique<FixedBytesType>(23)},
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{make_unique<FixedBytesType>(24)},
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{make_unique<FixedBytesType>(25)},
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{make_unique<FixedBytesType>(26)},
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{make_unique<FixedBytesType>(27)},
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{make_unique<FixedBytesType>(28)},
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{make_unique<FixedBytesType>(29)},
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{make_unique<FixedBytesType>(30)},
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{make_unique<FixedBytesType>(31)},
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{make_unique<FixedBytesType>(32)}
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}};
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array<unique_ptr<MagicType>, 4> const TypeProvider::m_magics{{
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{make_unique<MagicType>(MagicType::Kind::Block)},
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{make_unique<MagicType>(MagicType::Kind::Message)},
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{make_unique<MagicType>(MagicType::Kind::Transaction)},
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{make_unique<MagicType>(MagicType::Kind::ABI)}
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// MetaType is stored separately
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}};
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inline void clearCache(Type const& type)
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{
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type.clearCache();
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}
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template <typename T>
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inline void clearCache(unique_ptr<T> const& type)
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{
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// Some lazy-initialized types might not exist yet.
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if (type)
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type->clearCache();
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}
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template <typename Container>
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inline void clearCaches(Container& container)
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{
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for (auto const& e: container)
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clearCache(e);
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}
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void TypeProvider::reset()
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{
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clearCache(m_boolean);
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clearCache(m_inaccessibleDynamic);
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clearCache(m_bytesStorage);
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clearCache(m_bytesMemory);
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clearCache(m_stringStorage);
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clearCache(m_stringMemory);
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clearCache(m_emptyTuple);
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clearCache(m_payableAddress);
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clearCache(m_address);
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clearCaches(instance().m_intM);
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clearCaches(instance().m_uintM);
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clearCaches(instance().m_bytesM);
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clearCaches(instance().m_magics);
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instance().m_generalTypes.clear();
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instance().m_stringLiteralTypes.clear();
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instance().m_ufixedMxN.clear();
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instance().m_fixedMxN.clear();
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}
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template <typename T, typename... Args>
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inline T const* TypeProvider::createAndGet(Args&& ... _args)
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{
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instance().m_generalTypes.emplace_back(make_unique<T>(std::forward<Args>(_args)...));
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return static_cast<T const*>(instance().m_generalTypes.back().get());
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}
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Type const* TypeProvider::fromElementaryTypeName(ElementaryTypeNameToken const& _type)
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{
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solAssert(
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TokenTraits::isElementaryTypeName(_type.token()),
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"Expected an elementary type name but got " + _type.toString()
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);
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unsigned const m = _type.firstNumber();
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unsigned const n = _type.secondNumber();
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switch (_type.token())
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{
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case Token::IntM:
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return integer(m, IntegerType::Modifier::Signed);
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case Token::UIntM:
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return integer(m, IntegerType::Modifier::Unsigned);
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case Token::Byte:
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return byte();
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case Token::BytesM:
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return fixedBytes(m);
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case Token::FixedMxN:
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return fixedPoint(m, n, FixedPointType::Modifier::Signed);
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case Token::UFixedMxN:
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return fixedPoint(m, n, FixedPointType::Modifier::Unsigned);
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case Token::Int:
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return integer(256, IntegerType::Modifier::Signed);
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case Token::UInt:
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return integer(256, IntegerType::Modifier::Unsigned);
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case Token::Fixed:
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return fixedPoint(128, 18, FixedPointType::Modifier::Signed);
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case Token::UFixed:
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return fixedPoint(128, 18, FixedPointType::Modifier::Unsigned);
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case Token::Address:
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return address();
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case Token::Bool:
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return boolean();
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case Token::Bytes:
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return bytesStorage();
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case Token::String:
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return stringStorage();
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default:
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solAssert(
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false,
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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 TypeProvider::fromElementaryTypeName(string const& _name)
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{
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vector<string> nameParts;
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boost::split(nameParts, _name, boost::is_any_of(" "));
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solAssert(nameParts.size() == 1 || nameParts.size() == 2, "Cannot parse elementary type: " + _name);
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Token token;
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unsigned short firstNum, secondNum;
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tie(token, firstNum, secondNum) = TokenTraits::fromIdentifierOrKeyword(nameParts[0]);
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auto t = fromElementaryTypeName(ElementaryTypeNameToken(token, firstNum, secondNum));
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if (auto* ref = dynamic_cast<ReferenceType const*>(t))
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{
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DataLocation location = DataLocation::Storage;
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if (nameParts.size() == 2)
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{
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if (nameParts[1] == "storage")
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location = DataLocation::Storage;
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else if (nameParts[1] == "calldata")
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location = DataLocation::CallData;
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else if (nameParts[1] == "memory")
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location = DataLocation::Memory;
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else
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solAssert(false, "Unknown data location: " + nameParts[1]);
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}
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return withLocation(ref, location, true);
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}
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else if (t->category() == Type::Category::Address)
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{
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if (nameParts.size() == 2)
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{
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if (nameParts[1] == "payable")
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return payableAddress();
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else
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solAssert(false, "Invalid state mutability for address type: " + nameParts[1]);
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}
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return address();
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}
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else
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{
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solAssert(nameParts.size() == 1, "Storage location suffix only allowed for reference types");
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return t;
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}
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}
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ArrayType const* TypeProvider::bytesStorage()
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{
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if (!m_bytesStorage)
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m_bytesStorage = make_unique<ArrayType>(DataLocation::Storage, false);
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return m_bytesStorage.get();
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}
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ArrayType const* TypeProvider::bytesMemory()
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{
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if (!m_bytesMemory)
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m_bytesMemory = make_unique<ArrayType>(DataLocation::Memory, false);
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return m_bytesMemory.get();
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}
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ArrayType const* TypeProvider::stringStorage()
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{
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if (!m_stringStorage)
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m_stringStorage = make_unique<ArrayType>(DataLocation::Storage, true);
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return m_stringStorage.get();
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}
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ArrayType const* TypeProvider::stringMemory()
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{
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if (!m_stringMemory)
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m_stringMemory = make_unique<ArrayType>(DataLocation::Memory, true);
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return m_stringMemory.get();
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}
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TypePointer TypeProvider::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 boolean();
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case Token::Number:
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return rationalNumber(_literal);
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case Token::StringLiteral:
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return stringLiteral(_literal.value());
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default:
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return nullptr;
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}
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}
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RationalNumberType const* TypeProvider::rationalNumber(Literal const& _literal)
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{
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solAssert(_literal.token() == Token::Number, "");
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std::tuple<bool, rational> validLiteral = RationalNumberType::isValidLiteral(_literal);
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if (std::get<0>(validLiteral))
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{
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TypePointer compatibleBytesType = nullptr;
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if (_literal.isHexNumber())
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{
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size_t const digitCount = _literal.valueWithoutUnderscores().length() - 2;
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if (digitCount % 2 == 0 && (digitCount / 2) <= 32)
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compatibleBytesType = fixedBytes(digitCount / 2);
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}
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return rationalNumber(std::get<1>(validLiteral), compatibleBytesType);
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}
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return nullptr;
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}
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StringLiteralType const* TypeProvider::stringLiteral(string const& literal)
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{
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auto i = instance().m_stringLiteralTypes.find(literal);
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if (i != instance().m_stringLiteralTypes.end())
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return i->second.get();
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else
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return instance().m_stringLiteralTypes.emplace(literal, make_unique<StringLiteralType>(literal)).first->second.get();
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}
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FixedPointType const* TypeProvider::fixedPoint(unsigned m, unsigned n, FixedPointType::Modifier _modifier)
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{
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auto& map = _modifier == FixedPointType::Modifier::Unsigned ? instance().m_ufixedMxN : instance().m_fixedMxN;
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auto i = map.find(make_pair(m, n));
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if (i != map.end())
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return i->second.get();
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return map.emplace(
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make_pair(m, n),
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make_unique<FixedPointType>(m, n, _modifier)
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).first->second.get();
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}
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TupleType const* TypeProvider::tuple(vector<Type const*> members)
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{
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if (members.empty())
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return &m_emptyTuple;
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return createAndGet<TupleType>(move(members));
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}
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ReferenceType const* TypeProvider::withLocation(ReferenceType const* _type, DataLocation _location, bool _isPointer)
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{
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if (_type->location() == _location && _type->isPointer() == _isPointer)
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return _type;
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instance().m_generalTypes.emplace_back(_type->copyForLocation(_location, _isPointer));
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return static_cast<ReferenceType const*>(instance().m_generalTypes.back().get());
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}
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FunctionType const* TypeProvider::function(FunctionDefinition const& _function, bool _isInternal)
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{
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return createAndGet<FunctionType>(_function, _isInternal);
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}
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FunctionType const* TypeProvider::function(VariableDeclaration const& _varDecl)
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{
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return createAndGet<FunctionType>(_varDecl);
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}
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FunctionType const* TypeProvider::function(EventDefinition const& _def)
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{
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return createAndGet<FunctionType>(_def);
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}
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FunctionType const* TypeProvider::function(FunctionTypeName const& _typeName)
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{
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return createAndGet<FunctionType>(_typeName);
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}
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FunctionType const* TypeProvider::function(
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strings const& _parameterTypes,
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strings const& _returnParameterTypes,
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FunctionType::Kind _kind,
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bool _arbitraryParameters,
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StateMutability _stateMutability
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)
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{
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return createAndGet<FunctionType>(
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_parameterTypes, _returnParameterTypes,
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_kind, _arbitraryParameters, _stateMutability
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);
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}
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FunctionType const* TypeProvider::function(
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TypePointers const& _parameterTypes,
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TypePointers const& _returnParameterTypes,
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strings _parameterNames,
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strings _returnParameterNames,
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FunctionType::Kind _kind,
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bool _arbitraryParameters,
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StateMutability _stateMutability,
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Declaration const* _declaration,
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bool _gasSet,
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bool _valueSet,
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bool _bound
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)
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{
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return createAndGet<FunctionType>(
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_parameterTypes,
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_returnParameterTypes,
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_parameterNames,
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_returnParameterNames,
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_kind,
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_arbitraryParameters,
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_stateMutability,
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_declaration,
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_gasSet,
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_valueSet,
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_bound
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);
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}
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RationalNumberType const* TypeProvider::rationalNumber(rational const& _value, Type const* _compatibleBytesType)
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{
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return createAndGet<RationalNumberType>(_value, _compatibleBytesType);
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}
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ArrayType const* TypeProvider::array(DataLocation _location, bool _isString)
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{
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if (_isString)
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{
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if (_location == DataLocation::Storage)
|
|
return stringStorage();
|
|
if (_location == DataLocation::Memory)
|
|
return stringMemory();
|
|
}
|
|
else
|
|
{
|
|
if (_location == DataLocation::Storage)
|
|
return bytesStorage();
|
|
if (_location == DataLocation::Memory)
|
|
return bytesMemory();
|
|
}
|
|
return createAndGet<ArrayType>(_location, _isString);
|
|
}
|
|
|
|
ArrayType const* TypeProvider::array(DataLocation _location, Type const* _baseType)
|
|
{
|
|
return createAndGet<ArrayType>(_location, _baseType);
|
|
}
|
|
|
|
ArrayType const* TypeProvider::array(DataLocation _location, Type const* _baseType, u256 const& _length)
|
|
{
|
|
return createAndGet<ArrayType>(_location, _baseType, _length);
|
|
}
|
|
|
|
ContractType const* TypeProvider::contract(ContractDefinition const& _contractDef, bool _isSuper)
|
|
{
|
|
return createAndGet<ContractType>(_contractDef, _isSuper);
|
|
}
|
|
|
|
EnumType const* TypeProvider::enumType(EnumDefinition const& _enumDef)
|
|
{
|
|
return createAndGet<EnumType>(_enumDef);
|
|
}
|
|
|
|
ModuleType const* TypeProvider::module(SourceUnit const& _source)
|
|
{
|
|
return createAndGet<ModuleType>(_source);
|
|
}
|
|
|
|
TypeType const* TypeProvider::typeType(Type const* _actualType)
|
|
{
|
|
return createAndGet<TypeType>(_actualType);
|
|
}
|
|
|
|
StructType const* TypeProvider::structType(StructDefinition const& _struct, DataLocation _location)
|
|
{
|
|
return createAndGet<StructType>(_struct, _location);
|
|
}
|
|
|
|
ModifierType const* TypeProvider::modifier(ModifierDefinition const& _def)
|
|
{
|
|
return createAndGet<ModifierType>(_def);
|
|
}
|
|
|
|
MagicType const* TypeProvider::magic(MagicType::Kind _kind)
|
|
{
|
|
solAssert(_kind != MagicType::Kind::MetaType, "MetaType is handled separately");
|
|
return m_magics.at(static_cast<size_t>(_kind)).get();
|
|
}
|
|
|
|
MagicType const* TypeProvider::meta(Type const* _type)
|
|
{
|
|
solAssert(_type && _type->category() == Type::Category::Contract, "Only contracts supported for now.");
|
|
return createAndGet<MagicType>(_type);
|
|
}
|
|
|
|
MappingType const* TypeProvider::mapping(Type const* _keyType, Type const* _valueType)
|
|
{
|
|
return createAndGet<MappingType>(_keyType, _valueType);
|
|
}
|