mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
369 lines
10 KiB
C++
369 lines
10 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 abstract syntax tree.
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*/
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#include <algorithm>
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#include <functional>
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#include <libsolidity/Utils.h>
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#include <libsolidity/AST.h>
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#include <libsolidity/ASTVisitor.h>
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#include <libsolidity/Exceptions.h>
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#include <libsolidity/AST_accept.h>
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#include <libdevcore/SHA3.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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ASTNode::ASTNode(SourceLocation const& _location):
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m_location(_location)
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{
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}
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ASTNode::~ASTNode()
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{
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delete m_annotation;
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}
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ASTAnnotation& ASTNode::annotation() const
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{
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if (!m_annotation)
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m_annotation = new ASTAnnotation();
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return *m_annotation;
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}
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Error ASTNode::createTypeError(string const& _description) const
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{
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return Error(Error::Type::TypeError) << errinfo_sourceLocation(location()) << errinfo_comment(_description);
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}
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map<FixedHash<4>, FunctionTypePointer> ContractDefinition::interfaceFunctions() const
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{
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auto exportedFunctionList = interfaceFunctionList();
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map<FixedHash<4>, FunctionTypePointer> exportedFunctions;
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for (auto const& it: exportedFunctionList)
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exportedFunctions.insert(it);
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solAssert(
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exportedFunctionList.size() == exportedFunctions.size(),
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"Hash collision at Function Definition Hash calculation"
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);
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return exportedFunctions;
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}
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FunctionDefinition const* ContractDefinition::constructor() const
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{
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for (ASTPointer<FunctionDefinition> const& f: m_definedFunctions)
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if (f->isConstructor())
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return f.get();
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return nullptr;
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}
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FunctionDefinition const* ContractDefinition::fallbackFunction() const
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{
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for (ContractDefinition const* contract: annotation().linearizedBaseContracts)
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for (ASTPointer<FunctionDefinition> const& f: contract->definedFunctions())
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if (f->name().empty())
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return f.get();
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return nullptr;
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}
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vector<ASTPointer<EventDefinition>> const& ContractDefinition::interfaceEvents() const
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{
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if (!m_interfaceEvents)
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{
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set<string> eventsSeen;
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m_interfaceEvents.reset(new vector<ASTPointer<EventDefinition>>());
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for (ContractDefinition const* contract: annotation().linearizedBaseContracts)
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for (ASTPointer<EventDefinition> const& e: contract->events())
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if (eventsSeen.count(e->name()) == 0)
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{
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eventsSeen.insert(e->name());
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m_interfaceEvents->push_back(e);
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}
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}
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return *m_interfaceEvents;
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}
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vector<pair<FixedHash<4>, FunctionTypePointer>> const& ContractDefinition::interfaceFunctionList() const
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{
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if (!m_interfaceFunctionList)
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{
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set<string> functionsSeen;
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set<string> signaturesSeen;
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m_interfaceFunctionList.reset(new vector<pair<FixedHash<4>, FunctionTypePointer>>());
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for (ContractDefinition const* contract: annotation().linearizedBaseContracts)
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{
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for (ASTPointer<FunctionDefinition> const& f: contract->definedFunctions())
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{
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if (!f->isPartOfExternalInterface())
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continue;
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string functionSignature = f->externalSignature();
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if (signaturesSeen.count(functionSignature) == 0)
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{
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functionsSeen.insert(f->name());
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signaturesSeen.insert(functionSignature);
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FixedHash<4> hash(dev::sha3(functionSignature));
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m_interfaceFunctionList->push_back(make_pair(hash, make_shared<FunctionType>(*f, false)));
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}
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}
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for (ASTPointer<VariableDeclaration> const& v: contract->stateVariables())
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if (functionsSeen.count(v->name()) == 0 && v->isPartOfExternalInterface())
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{
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FunctionType ftype(*v);
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solAssert(!!v->annotation().type.get(), "");
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functionsSeen.insert(v->name());
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FixedHash<4> hash(dev::sha3(ftype.externalSignature()));
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m_interfaceFunctionList->push_back(make_pair(hash, make_shared<FunctionType>(*v)));
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}
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}
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}
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return *m_interfaceFunctionList;
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}
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string const& ContractDefinition::devDocumentation() const
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{
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return m_devDocumentation;
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}
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string const& ContractDefinition::userDocumentation() const
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{
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return m_userDocumentation;
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}
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void ContractDefinition::setDevDocumentation(string const& _devDocumentation)
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{
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m_devDocumentation = _devDocumentation;
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}
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void ContractDefinition::setUserDocumentation(string const& _userDocumentation)
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{
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m_userDocumentation = _userDocumentation;
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}
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vector<Declaration const*> const& ContractDefinition::inheritableMembers() const
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{
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if (!m_inheritableMembers)
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{
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set<string> memberSeen;
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m_inheritableMembers.reset(new vector<Declaration const*>());
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auto addInheritableMember = [&](Declaration const* _decl)
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{
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if (memberSeen.count(_decl->name()) == 0 && _decl->isVisibleInDerivedContracts())
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{
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memberSeen.insert(_decl->name());
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m_inheritableMembers->push_back(_decl);
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}
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};
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for (ASTPointer<FunctionDefinition> const& f: definedFunctions())
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addInheritableMember(f.get());
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for (ASTPointer<VariableDeclaration> const& v: stateVariables())
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addInheritableMember(v.get());
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for (ASTPointer<StructDefinition> const& s: definedStructs())
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addInheritableMember(s.get());
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}
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return *m_inheritableMembers;
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}
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TypePointer ContractDefinition::type(ContractDefinition const* m_currentContract) const
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{
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return make_shared<TypeType>(make_shared<ContractType>(*this), m_currentContract);
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}
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ContractDefinitionAnnotation& ContractDefinition::annotation() const
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{
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if (!m_annotation)
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m_annotation = new ContractDefinitionAnnotation();
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return static_cast<ContractDefinitionAnnotation&>(*m_annotation);
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}
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TypeNameAnnotation& TypeName::annotation() const
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{
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if (!m_annotation)
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m_annotation = new TypeNameAnnotation();
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return static_cast<TypeNameAnnotation&>(*m_annotation);
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}
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TypePointer StructDefinition::type(ContractDefinition const*) const
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{
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return make_shared<TypeType>(make_shared<StructType>(*this));
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}
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TypeDeclarationAnnotation& StructDefinition::annotation() const
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{
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if (!m_annotation)
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m_annotation = new TypeDeclarationAnnotation();
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return static_cast<TypeDeclarationAnnotation&>(*m_annotation);
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}
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TypePointer EnumValue::type(ContractDefinition const*) const
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{
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auto parentDef = dynamic_cast<EnumDefinition const*>(scope());
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solAssert(parentDef, "Enclosing Scope of EnumValue was not set");
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return make_shared<EnumType>(*parentDef);
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}
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TypePointer EnumDefinition::type(ContractDefinition const*) const
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{
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return make_shared<TypeType>(make_shared<EnumType>(*this));
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}
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TypeDeclarationAnnotation& EnumDefinition::annotation() const
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{
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if (!m_annotation)
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m_annotation = new TypeDeclarationAnnotation();
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return static_cast<TypeDeclarationAnnotation&>(*m_annotation);
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}
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TypePointer FunctionDefinition::type(ContractDefinition const*) const
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{
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return make_shared<FunctionType>(*this);
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}
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string FunctionDefinition::externalSignature() const
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{
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return FunctionType(*this).externalSignature();
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}
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TypePointer ModifierDefinition::type(ContractDefinition const*) const
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{
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return make_shared<ModifierType>(*this);
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}
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TypePointer EventDefinition::type(ContractDefinition const*) const
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{
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return make_shared<FunctionType>(*this);
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}
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UserDefinedTypeNameAnnotation& UserDefinedTypeName::annotation() const
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{
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if (!m_annotation)
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m_annotation = new UserDefinedTypeNameAnnotation();
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return static_cast<UserDefinedTypeNameAnnotation&>(*m_annotation);
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}
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bool VariableDeclaration::isLValue() const
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{
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// External function parameters and constant declared variables are Read-Only
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return !isExternalCallableParameter() && !m_isConstant;
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}
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bool VariableDeclaration::isCallableParameter() const
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{
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auto const* callable = dynamic_cast<CallableDeclaration const*>(scope());
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if (!callable)
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return false;
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for (auto const& variable: callable->parameters())
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if (variable.get() == this)
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return true;
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if (callable->returnParameterList())
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for (auto const& variable: callable->returnParameterList()->parameters())
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if (variable.get() == this)
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return true;
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return false;
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}
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bool VariableDeclaration::isExternalCallableParameter() const
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{
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auto const* callable = dynamic_cast<CallableDeclaration const*>(scope());
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if (!callable || callable->visibility() != Declaration::Visibility::External)
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return false;
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for (auto const& variable: callable->parameters())
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if (variable.get() == this)
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return true;
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return false;
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}
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bool VariableDeclaration::canHaveAutoType() const
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{
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auto const* callable = dynamic_cast<CallableDeclaration const*>(scope());
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return (!!callable && !isCallableParameter());
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}
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TypePointer VariableDeclaration::type(ContractDefinition const*) const
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{
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return annotation().type;
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}
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VariableDeclarationAnnotation& VariableDeclaration::annotation() const
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{
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if (!m_annotation)
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m_annotation = new VariableDeclarationAnnotation();
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return static_cast<VariableDeclarationAnnotation&>(*m_annotation);
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}
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ReturnAnnotation& Return::annotation() const
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{
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if (!m_annotation)
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m_annotation = new ReturnAnnotation();
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return static_cast<ReturnAnnotation&>(*m_annotation);
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}
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VariableDeclarationStatementAnnotation& VariableDeclarationStatement::annotation() const
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{
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if (!m_annotation)
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m_annotation = new VariableDeclarationStatementAnnotation();
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return static_cast<VariableDeclarationStatementAnnotation&>(*m_annotation);
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}
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ExpressionAnnotation& Expression::annotation() const
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{
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if (!m_annotation)
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m_annotation = new ExpressionAnnotation();
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return static_cast<ExpressionAnnotation&>(*m_annotation);
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}
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MemberAccessAnnotation& MemberAccess::annotation() const
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{
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if (!m_annotation)
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m_annotation = new MemberAccessAnnotation();
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return static_cast<MemberAccessAnnotation&>(*m_annotation);
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}
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BinaryOperationAnnotation& BinaryOperation::annotation() const
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{
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if (!m_annotation)
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m_annotation = new BinaryOperationAnnotation();
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return static_cast<BinaryOperationAnnotation&>(*m_annotation);
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}
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FunctionCallAnnotation& FunctionCall::annotation() const
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{
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if (!m_annotation)
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m_annotation = new FunctionCallAnnotation();
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return static_cast<FunctionCallAnnotation&>(*m_annotation);
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}
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IdentifierAnnotation& Identifier::annotation() const
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{
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if (!m_annotation)
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m_annotation = new IdentifierAnnotation();
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return static_cast<IdentifierAnnotation&>(*m_annotation);
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}
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