Christian
10 years ago
14 changed files with 823 additions and 130 deletions
@ -0,0 +1,48 @@ |
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/*
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This file is part of cpp-ethereum. |
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|
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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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|
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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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|
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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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* Scope - object that holds declaration of names. |
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*/ |
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#include <libsolidity/Scope.h> |
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#include <libsolidity/AST.h> |
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namespace dev { |
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namespace solidity { |
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bool Scope::registerDeclaration(Declaration& _declaration) |
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{ |
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if (m_declarations.find(_declaration.getName()) != m_declarations.end()) |
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return false; |
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m_declarations[_declaration.getName()] = &_declaration; |
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return true; |
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} |
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Declaration*Scope::resolveName(ASTString const& _name, bool _recursive) const |
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{ |
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auto result = m_declarations.find(_name); |
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if (result != m_declarations.end()) |
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return result->second; |
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if (_recursive && m_outerScope != nullptr) |
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return m_outerScope->resolveName(_name, true); |
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return nullptr; |
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} |
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} } |
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@ -0,0 +1,152 @@ |
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/*
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This file is part of cpp-ethereum. |
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|
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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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|
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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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|
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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/Types.h> |
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#include <libsolidity/AST.h> |
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namespace dev { |
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namespace solidity { |
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ptr<Type> Type::fromElementaryTypeName(Token::Value _typeToken) |
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{ |
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if (Token::INT <= _typeToken && _typeToken <= Token::HASH256) { |
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int offset = _typeToken - Token::INT; |
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int bits = offset % 5; |
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if (bits == 0) |
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bits = 256; |
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else |
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bits = (1 << (bits - 1)) * 32; |
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int modifier = offset / 5; |
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return std::make_shared<IntegerType>(bits, |
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modifier == 0 ? IntegerType::Modifier::UNSIGNED : |
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modifier == 1 ? IntegerType::Modifier::SIGNED : |
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IntegerType::Modifier::HASH); |
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} else if (_typeToken == Token::ADDRESS) { |
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return std::make_shared<IntegerType>(0, IntegerType::Modifier::ADDRESS); |
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} else if (_typeToken == Token::BOOL) { |
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return std::make_shared<BoolType>(); |
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} else { |
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BOOST_ASSERT(false); |
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// @todo add other tyes
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} |
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} |
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ptr<Type> Type::fromUserDefinedTypeName(const UserDefinedTypeName& _typeName) |
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{ |
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return std::make_shared<StructType>(*_typeName.getReferencedStruct()); |
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} |
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ptr<Type> Type::fromMapping(const Mapping&) |
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{ |
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BOOST_ASSERT(false); //@todo not yet implemented
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return ptr<Type>(); |
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} |
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ptr<Type> Type::forLiteral(const Literal& _literal) |
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{ |
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switch (_literal.getToken()) { |
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case Token::TRUE_LITERAL: |
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case Token::FALSE_LITERAL: |
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return std::make_shared<BoolType>(); |
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case Token::NUMBER: |
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return IntegerType::smallestTypeForLiteral(_literal.getValue()); |
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case Token::STRING_LITERAL: |
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return ptr<Type>(); // @todo
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default: |
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return ptr<Type>(); |
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} |
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} |
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ptr<IntegerType> IntegerType::smallestTypeForLiteral(const std::string&) |
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{ |
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//@todo
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return std::make_shared<IntegerType>(256, Modifier::UNSIGNED); |
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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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BOOST_ASSERT(_bits > 0 && _bits <= 256 && _bits % 8 == 0); |
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if (isAddress()) |
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_bits = 160; |
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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.getCategory() != Category::INTEGER) |
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return false; |
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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 (isHash()) |
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return convertTo.isHash(); |
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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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bool IntegerType::isExplicitlyConvertibleTo(const Type& _convertTo) const |
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{ |
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// @todo
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return false; |
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} |
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bool IntegerType::acceptsBinaryOperator(Token::Value _operator) const |
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{ |
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//@todo
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return true; |
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} |
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bool IntegerType::acceptsUnaryOperator(Token::Value _operator) const |
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{ |
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//@todo
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return true; |
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} |
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bool BoolType::isExplicitlyConvertibleTo(const Type& _convertTo) const |
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{ |
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//@todo conversion to integer is fine, but not to address
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//@todo this is an example of explicit conversions being not transitive (though implicit should)
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return isImplicitlyConvertibleTo(_convertTo); |
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} |
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bool ContractType::isImplicitlyConvertibleTo(const Type& _convertTo) const |
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{ |
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if (_convertTo.getCategory() != Category::CONTRACT) |
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return false; |
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ContractType const& convertTo = dynamic_cast<ContractType const&>(_convertTo); |
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return &m_contract == &convertTo.m_contract; |
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} |
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bool StructType::isImplicitlyConvertibleTo(const Type& _convertTo) const |
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{ |
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if (_convertTo.getCategory() != Category::STRUCT) |
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return false; |
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StructType const& convertTo = dynamic_cast<StructType const&>(_convertTo); |
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return &m_struct == &convertTo.m_struct; |
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} |
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} } |
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@ -0,0 +1,171 @@ |
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/*
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This file is part of cpp-ethereum. |
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|
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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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|
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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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|
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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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#pragma once |
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#include <memory> |
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#include <string> |
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#include <boost/noncopyable.hpp> |
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#include <boost/assert.hpp> |
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#include <libsolidity/Token.h> |
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namespace dev { |
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namespace solidity { |
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// AST forward declarations
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class ContractDefinition; |
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class FunctionDefinition; |
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class StructDefinition; |
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class Literal; |
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class ElementaryTypeName; |
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class UserDefinedTypeName; |
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class Mapping; |
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template <typename T> |
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using ptr = std::shared_ptr<T>; |
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// @todo realMxN, string<N>, mapping
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class Type : private boost::noncopyable |
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{ |
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public: |
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enum class Category { |
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INTEGER, BOOL, REAL, STRING, CONTRACT, STRUCT, FUNCTION, MAPPING, VOID, TYPE |
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}; |
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//! factory functions that convert an AST TypeName to a Type.
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static ptr<Type> fromElementaryTypeName(Token::Value _typeToken); |
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static ptr<Type> fromUserDefinedTypeName(UserDefinedTypeName const& _typeName); |
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static ptr<Type> fromMapping(Mapping const& _typeName); |
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static ptr<Type> forLiteral(Literal const& _literal); |
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virtual Category getCategory() const = 0; |
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virtual bool isImplicitlyConvertibleTo(const Type& _convertTo) const { return false; } |
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virtual bool isExplicitlyConvertibleTo(const Type& _convertTo) const { return isImplicitlyConvertibleTo(_convertTo); } |
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virtual bool acceptsBinaryOperator(Token::Value _operator) const { return false; } |
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virtual bool acceptsUnaryOperator(Token::Value _operator) const { return false; } |
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}; |
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class IntegerType : public Type |
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{ |
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public: |
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enum class Modifier { |
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UNSIGNED, SIGNED, HASH, ADDRESS |
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}; |
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virtual Category getCategory() const { return Category::INTEGER; } |
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static ptr<IntegerType> smallestTypeForLiteral(std::string const& _literal); |
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explicit IntegerType(int _bits, Modifier _modifier = Modifier::UNSIGNED); |
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virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const override; |
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virtual bool isExplicitlyConvertibleTo(const Type& _convertTo) const override; |
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virtual bool acceptsBinaryOperator(Token::Value _operator) const override; |
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virtual bool acceptsUnaryOperator(Token::Value _operator) const override; |
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int getNumBits() const { return m_bits; } |
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bool isHash() const { return m_modifier == Modifier::HASH || m_modifier == Modifier::ADDRESS; } |
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bool isAddress() const { return m_modifier == Modifier::ADDRESS; } |
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int isSigned() const { return m_modifier == Modifier::SIGNED; } |
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private: |
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int m_bits; |
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Modifier m_modifier; |
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}; |
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class BoolType : public Type |
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{ |
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public: |
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virtual Category getCategory() const { return Category::BOOL; } |
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virtual bool isImplicitlyConvertibleTo(const Type& _convertTo) const override |
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{ return _convertTo.getCategory() == Category::BOOL; } |
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virtual bool isExplicitlyConvertibleTo(const Type& _convertTo) const override; |
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virtual bool acceptsBinaryOperator(Token::Value _operator) const override |
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{ return _operator == Token::AND || _operator == Token::OR; } |
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virtual bool acceptsUnaryOperator(Token::Value _operator) const override |
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{ return _operator == Token::NOT || _operator == Token::DELETE; } |
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}; |
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class ContractType : public Type |
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{ |
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public: |
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virtual Category getCategory() const { return Category::CONTRACT; } |
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ContractType(ContractDefinition const& _contract) : m_contract(_contract) {} |
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virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const; |
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private: |
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ContractDefinition const& m_contract; |
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}; |
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class StructType : public Type |
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{ |
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public: |
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virtual Category getCategory() const { return Category::STRUCT; } |
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StructType(StructDefinition const& _struct) : m_struct(_struct) {} |
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virtual bool isImplicitlyConvertibleTo(Type const& _convertTo) const; |
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virtual bool acceptsUnaryOperator(Token::Value _operator) const override |
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{ return _operator == Token::DELETE; } |
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private: |
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StructDefinition const& m_struct; |
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}; |
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class FunctionType : public Type |
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{ |
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public: |
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virtual Category getCategory() const { return Category::FUNCTION; } |
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FunctionType(FunctionDefinition const& _function) : m_function(_function) {} |
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FunctionDefinition const& getFunction() const { return m_function; } |
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private: |
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FunctionDefinition const& m_function; |
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}; |
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class MappingType : public Type |
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{ |
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public: |
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virtual Category getCategory() const { return Category::MAPPING; } |
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MappingType() {} |
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private: |
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//@todo
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}; |
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//@todo should be changed into "empty anonymous struct"
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class VoidType : public Type |
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{ |
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public: |
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virtual Category getCategory() const { return Category::VOID; } |
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VoidType() {} |
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}; |
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class TypeType : public Type |
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{ |
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public: |
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virtual Category getCategory() const { return Category::TYPE; } |
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TypeType(ptr<Type> const& _actualType) : m_actualType(_actualType) {} |
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ptr<Type> const& getActualType() { return m_actualType; } |
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private: |
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ptr<Type> m_actualType; |
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}; |
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} } |
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