solidity/libsolidity/ast/AST.cpp at develop · compumatrix/solidity · GitHub

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This file is part of cpp-ethereum.

cpp-ethereum is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

cpp-ethereum is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.

/**

* @author Christian <c@ethdev.com>

* @date 2014

* Solidity abstract syntax tree.

#include <algorithm>

#include <functional>

#include <libsolidity/interface/Utils.h>

#include <libsolidity/ast/AST.h>

#include <libsolidity/ast/ASTVisitor.h>

#include <libsolidity/interface/Exceptions.h>

#include <libsolidity/ast/AST_accept.h>

#include <libdevcore/SHA3.h>

using namespace std;

using namespace dev;

using namespace dev::solidity;

ASTNode::ASTNode(SourceLocation const& _location):

m_location(_location)

{

}

ASTNode::~ASTNode()

{

delete m_annotation;

}

ASTAnnotation& ASTNode::annotation() const

{

if (!m_annotation)

m_annotation = new ASTAnnotation();

return *m_annotation;

}

Error ASTNode::createTypeError(string const& _description) const

{

return Error(Error::Type::TypeError) << errinfo_sourceLocation(location()) << errinfo_comment(_description);

}

SourceUnitAnnotation& SourceUnit::annotation() const

{

if (!m_annotation)

m_annotation = new SourceUnitAnnotation();

return static_cast<SourceUnitAnnotation&>(*m_annotation);

}

ImportAnnotation& ImportDirective::annotation() const

{

if (!m_annotation)

m_annotation = new ImportAnnotation();

return static_cast<ImportAnnotation&>(*m_annotation);

}

TypePointer ImportDirective::type() const

{

solAssert(!!annotation().sourceUnit, "");

return make_shared<ModuleType>(*annotation().sourceUnit);

}

map<FixedHash<4>, FunctionTypePointer> ContractDefinition::interfaceFunctions() const

{

auto exportedFunctionList = interfaceFunctionList();

map<FixedHash<4>, FunctionTypePointer> exportedFunctions;

for (auto const& it: exportedFunctionList)

exportedFunctions.insert(it);

solAssert(

exportedFunctionList.size() == exportedFunctions.size(),

"Hash collision at Function Definition Hash calculation"

);

return exportedFunctions;

}

FunctionDefinition const* ContractDefinition::constructor() const

{

for (FunctionDefinition const* f: definedFunctions())

if (f->isConstructor())

return f;

return nullptr;

}

FunctionDefinition const* ContractDefinition::fallbackFunction() const

{

for (ContractDefinition const* contract: annotation().linearizedBaseContracts)

for (FunctionDefinition const* f: contract->definedFunctions())

if (f->name().empty())

return f;

return nullptr;

}

vector<EventDefinition const*> const& ContractDefinition::interfaceEvents() const

{

if (!m_interfaceEvents)

{

set<string> eventsSeen;

m_interfaceEvents.reset(new vector<EventDefinition const*>());

for (ContractDefinition const* contract: annotation().linearizedBaseContracts)

for (EventDefinition const* e: contract->events())

if (eventsSeen.count(e->name()) == 0)

{

eventsSeen.insert(e->name());

m_interfaceEvents->push_back(e);

}

return *m_interfaceEvents;

}

vector<pair<FixedHash<4>, FunctionTypePointer>> const& ContractDefinition::interfaceFunctionList() const

{

if (!m_interfaceFunctionList)

{

set<string> functionsSeen;

set<string> signaturesSeen;

m_interfaceFunctionList.reset(new vector<pair<FixedHash<4>, FunctionTypePointer>>());

for (ContractDefinition const* contract: annotation().linearizedBaseContracts)

{

vector<FunctionTypePointer> functions;

for (FunctionDefinition const* f: contract->definedFunctions())

if (f->isPartOfExternalInterface())

functions.push_back(make_shared<FunctionType>(*f, false));

for (VariableDeclaration const* v: contract->stateVariables())

if (v->isPartOfExternalInterface())

functions.push_back(make_shared<FunctionType>(*v));

for (FunctionTypePointer const& fun: functions)

{

if (!fun->interfaceFunctionType())

// Fails hopefully because we already registered the error

continue;

string functionSignature = fun->externalSignature();

if (signaturesSeen.count(functionSignature) == 0)

{

signaturesSeen.insert(functionSignature);

FixedHash<4> hash(dev::sha3(functionSignature));

m_interfaceFunctionList->push_back(make_pair(hash, fun));

}

return *m_interfaceFunctionList;

}

string const& ContractDefinition::devDocumentation() const

{

return m_devDocumentation;

}

string const& ContractDefinition::userDocumentation() const

{

return m_userDocumentation;

}

void ContractDefinition::setDevDocumentation(string const& _devDocumentation)

{

m_devDocumentation = _devDocumentation;

}

void ContractDefinition::setUserDocumentation(string const& _userDocumentation)

{

m_userDocumentation = _userDocumentation;

}

vector<Declaration const*> const& ContractDefinition::inheritableMembers() const

{

if (!m_inheritableMembers)

{

set<string> memberSeen;

m_inheritableMembers.reset(new vector<Declaration const*>());

auto addInheritableMember = [&](Declaration const* _decl)

{

if (memberSeen.count(_decl->name()) == 0 && _decl->isVisibleInDerivedContracts())

{

memberSeen.insert(_decl->name());

m_inheritableMembers->push_back(_decl);

}

};

for (FunctionDefinition const* f: definedFunctions())

addInheritableMember(f);

for (VariableDeclaration const* v: stateVariables())

addInheritableMember(v);

for (StructDefinition const* s: definedStructs())

addInheritableMember(s);

}

return *m_inheritableMembers;

}

TypePointer ContractDefinition::type() const

{

return make_shared<TypeType>(make_shared<ContractType>(*this));

}

ContractDefinitionAnnotation& ContractDefinition::annotation() const

{

if (!m_annotation)

m_annotation = new ContractDefinitionAnnotation();

return static_cast<ContractDefinitionAnnotation&>(*m_annotation);

}

TypeNameAnnotation& TypeName::annotation() const

{

if (!m_annotation)

m_annotation = new TypeNameAnnotation();

return static_cast<TypeNameAnnotation&>(*m_annotation);

}

TypePointer StructDefinition::type() const

{

return make_shared<TypeType>(make_shared<StructType>(*this));

}

TypeDeclarationAnnotation& StructDefinition::annotation() const

{

if (!m_annotation)

m_annotation = new TypeDeclarationAnnotation();

return static_cast<TypeDeclarationAnnotation&>(*m_annotation);

}

TypePointer EnumValue::type() const

{

auto parentDef = dynamic_cast<EnumDefinition const*>(scope());

solAssert(parentDef, "Enclosing Scope of EnumValue was not set");

return make_shared<EnumType>(*parentDef);

}

TypePointer EnumDefinition::type() const

{

return make_shared<TypeType>(make_shared<EnumType>(*this));

}

TypeDeclarationAnnotation& EnumDefinition::annotation() const

{

if (!m_annotation)

m_annotation = new TypeDeclarationAnnotation();

return static_cast<TypeDeclarationAnnotation&>(*m_annotation);

}

TypePointer FunctionDefinition::type() const

{

return make_shared<FunctionType>(*this);

}

string FunctionDefinition::externalSignature() const

{

return FunctionType(*this).externalSignature();

}

FunctionDefinitionAnnotation& FunctionDefinition::annotation() const

{

if (!m_annotation)

m_annotation = new FunctionDefinitionAnnotation();

return static_cast<FunctionDefinitionAnnotation&>(*m_annotation);

}

TypePointer ModifierDefinition::type() const

{

return make_shared<ModifierType>(*this);

}

ModifierDefinitionAnnotation& ModifierDefinition::annotation() const

{

if (!m_annotation)

m_annotation = new ModifierDefinitionAnnotation();

return static_cast<ModifierDefinitionAnnotation&>(*m_annotation);

}

TypePointer EventDefinition::type() const

{

return make_shared<FunctionType>(*this);

}

EventDefinitionAnnotation& EventDefinition::annotation() const

{

if (!m_annotation)

m_annotation = new EventDefinitionAnnotation();

return static_cast<EventDefinitionAnnotation&>(*m_annotation);

}

UserDefinedTypeNameAnnotation& UserDefinedTypeName::annotation() const

{

if (!m_annotation)

m_annotation = new UserDefinedTypeNameAnnotation();

return static_cast<UserDefinedTypeNameAnnotation&>(*m_annotation);

}

bool VariableDeclaration::isLValue() const

{

// External function parameters and constant declared variables are Read-Only

return !isExternalCallableParameter() && !m_isConstant;

}

bool VariableDeclaration::isCallableParameter() const

{

auto const* callable = dynamic_cast<CallableDeclaration const*>(scope());

if (!callable)

return false;

for (auto const& variable: callable->parameters())

if (variable.get() == this)

return true;

if (callable->returnParameterList())

for (auto const& variable: callable->returnParameterList()->parameters())

if (variable.get() == this)

return true;

return false;

}

bool VariableDeclaration::isExternalCallableParameter() const

{

auto const* callable = dynamic_cast<CallableDeclaration const*>(scope());

if (!callable || callable->visibility() != Declaration::Visibility::External)

return false;

for (auto const& variable: callable->parameters())

if (variable.get() == this)

return true;

return false;

}

bool VariableDeclaration::canHaveAutoType() const

{

auto const* callable = dynamic_cast<CallableDeclaration const*>(scope());

return (!!callable && !isCallableParameter());

}

TypePointer VariableDeclaration::type() const

{

return annotation().type;

}

VariableDeclarationAnnotation& VariableDeclaration::annotation() const

{

if (!m_annotation)

m_annotation = new VariableDeclarationAnnotation();

return static_cast<VariableDeclarationAnnotation&>(*m_annotation);

}

StatementAnnotation& Statement::annotation() const

{

if (!m_annotation)

m_annotation = new StatementAnnotation();

return static_cast<StatementAnnotation&>(*m_annotation);

}

InlineAssemblyAnnotation& InlineAssembly::annotation() const

{

if (!m_annotation)

m_annotation = new InlineAssemblyAnnotation();

return static_cast<InlineAssemblyAnnotation&>(*m_annotation);

}

ReturnAnnotation& Return::annotation() const

{

if (!m_annotation)

m_annotation = new ReturnAnnotation();

return static_cast<ReturnAnnotation&>(*m_annotation);

}

VariableDeclarationStatementAnnotation& VariableDeclarationStatement::annotation() const

{

if (!m_annotation)

m_annotation = new VariableDeclarationStatementAnnotation();

return static_cast<VariableDeclarationStatementAnnotation&>(*m_annotation);

}

ExpressionAnnotation& Expression::annotation() const

{

if (!m_annotation)

m_annotation = new ExpressionAnnotation();

return static_cast<ExpressionAnnotation&>(*m_annotation);

}

MemberAccessAnnotation& MemberAccess::annotation() const

{

if (!m_annotation)

m_annotation = new MemberAccessAnnotation();

return static_cast<MemberAccessAnnotation&>(*m_annotation);

}

BinaryOperationAnnotation& BinaryOperation::annotation() const

{

if (!m_annotation)

m_annotation = new BinaryOperationAnnotation();

return static_cast<BinaryOperationAnnotation&>(*m_annotation);

}

FunctionCallAnnotation& FunctionCall::annotation() const

{

if (!m_annotation)

m_annotation = new FunctionCallAnnotation();

return static_cast<FunctionCallAnnotation&>(*m_annotation);

}

IdentifierAnnotation& Identifier::annotation() const

{

if (!m_annotation)

m_annotation = new IdentifierAnnotation();

return static_cast<IdentifierAnnotation&>(*m_annotation);

}

solidity/libsolidity/ast/AST.cpp at develop · compumatrix/solidity · GitHub

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