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Merge pull request #1146 from LefterisJP/sol_fixBaseClassAccessors 

Sol fix accessing public variable of base class
cl-refactor
chriseth 10 years ago
parent
8eaeb249b5 de6e9f4f54
commit
e5a1417ca8
4 changed files with 94 additions and 8 deletions
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  1. 27
      libsolidity/AST.cpp
  2. 11
      libsolidity/AST.h
  3. 10
      libsolidity/Types.cpp
  4. 54
      test/SolidityNameAndTypeResolution.cpp

27
libsolidity/AST.cpp
View File

@ -209,6 +209,33 @@ vector<pair<FixedHash<4>, FunctionTypePointer>> const& ContractDefinition::getIn
return *m_interfaceFunctionList;
}
vector<Declaration const*> const& ContractDefinition::getInheritableMembers() const
{
if (!m_inheritableMembers)
{
set<string> memberSeen;
m_inheritableMembers.reset(new vector<Declaration const*>());
auto addInheritableMember = [&](Declaration const* _decl)
{
if (memberSeen.count(_decl->getName()) == 0 && _decl->isVisibleInDerivedContracts())
{
memberSeen.insert(_decl->getName());
m_inheritableMembers->push_back(_decl);
}
};
for (ASTPointer<FunctionDefinition> const& f: getDefinedFunctions())
addInheritableMember(f.get());
for (ASTPointer<VariableDeclaration> const& v: getStateVariables())
addInheritableMember(v.get());
for (ASTPointer<StructDefinition> const& s: getDefinedStructs())
addInheritableMember(s.get());
}
return *m_inheritableMembers;
}
TypePointer EnumValue::getType(ContractDefinition const*) const
{
EnumDefinition const* parentDef = dynamic_cast<EnumDefinition const*>(getScope());

11
libsolidity/AST.h
View File

@ -144,7 +144,7 @@ public:
Visibility getVisibility() const { return m_visibility == Visibility::Default ? getDefaultVisibility() : m_visibility; }
bool isPublic() const { return getVisibility() >= Visibility::Public; }
bool isVisibleInContract() const { return getVisibility() != Visibility::External; }
bool isVisibleInDerivedContracts() const { return isVisibleInContract() && getVisibility() >= Visibility::Internal; }
virtual bool isVisibleInDerivedContracts() const { return isVisibleInContract() && getVisibility() >= Visibility::Internal; }
/// @returns the scope this declaration resides in. Can be nullptr if it is the global scope.
/// Available only after name and type resolution step.
@ -247,6 +247,9 @@ public:
/// as intended for use by the ABI.
std::map<FixedHash<4>, FunctionTypePointer> getInterfaceFunctions() const;
/// @returns a list of the inheritable members of this contract
std::vector<Declaration const*> const& getInheritableMembers() const;
/// List of all (direct and indirect) base contracts in order from derived to base, including
/// the contract itself. Available after name resolution
std::vector<ContractDefinition const*> const& getLinearizedBaseContracts() const { return m_linearizedBaseContracts; }
@ -273,6 +276,7 @@ private:
std::vector<ContractDefinition const*> m_linearizedBaseContracts;
mutable std::unique_ptr<std::vector<std::pair<FixedHash<4>, FunctionTypePointer>>> m_interfaceFunctionList;
mutable std::unique_ptr<std::vector<ASTPointer<EventDefinition>>> m_interfaceEvents;
mutable std::unique_ptr<std::vector<Declaration const*>> m_inheritableMembers;
};
class InheritanceSpecifier: public ASTNode
@ -405,6 +409,11 @@ public:
ASTPointer<ParameterList> const& getReturnParameterList() const { return m_returnParameters; }
Block const& getBody() const { return *m_body; }
virtual bool isVisibleInDerivedContracts() const override
{
return !isConstructor() && !getName().empty() && isVisibleInContract() &&
getVisibility() >= Visibility::Internal;
}
virtual TypePointer getType(ContractDefinition const*) const override;
/// Checks that all parameters have allowed types and calls checkTypeRequirements on the body.

10
libsolidity/Types.cpp
View File

@ -643,8 +643,7 @@ MemberList const& ContractType::getMembers() const
{
for (ContractDefinition const* base: m_contract.getLinearizedBaseContracts())
for (ASTPointer<FunctionDefinition> const& function: base->getDefinedFunctions())
if (!function->isConstructor() && !function->getName().empty()&&
function->isVisibleInDerivedContracts())
if (function->isVisibleInDerivedContracts())
members.push_back(make_pair(function->getName(), make_shared<FunctionType>(*function, true)));
}
else
@ -1039,10 +1038,9 @@ MemberList const& TypeType::getMembers() const
vector<ContractDefinition const*> currentBases = m_currentContract->getLinearizedBaseContracts();
if (find(currentBases.begin(), currentBases.end(), &contract) != currentBases.end())
// We are accessing the type of a base contract, so add all public and protected
// functions. Note that this does not add inherited functions on purpose.
for (ASTPointer<FunctionDefinition> const& f: contract.getDefinedFunctions())
if (!f->isConstructor() && !f->getName().empty() && f->isVisibleInDerivedContracts())
members.push_back(make_pair(f->getName(), make_shared<FunctionType>(*f)));
// members. Note that this does not add inherited functions on purpose.
for (Declaration const* decl: contract.getInheritableMembers())
members.push_back(make_pair(decl->getName(), decl->getType()));
}
else if (m_actualType->getCategory() == Category::Enum)
{

54
test/SolidityNameAndTypeResolution.cpp
View File

@ -436,7 +436,7 @@ BOOST_AUTO_TEST_CASE(inheritance_diamond_basic)
function g() { f(); rootFunction(); }
}
)";
BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
BOOST_CHECK_NO_THROW(parseTextAndResolveNamesWithChecks(text));
}
BOOST_AUTO_TEST_CASE(cyclic_inheritance)
@ -720,6 +720,58 @@ BOOST_AUTO_TEST_CASE(private_state_variable)
BOOST_CHECK_MESSAGE(function == nullptr, "Accessor function of an internal variable should not exist");
}
BOOST_AUTO_TEST_CASE(base_class_state_variable_accessor)
{
// test for issue #1126 https://github.com/ethereum/cpp-ethereum/issues/1126
char const* text = "contract Parent {\n"
" uint256 public m_aMember;\n"
"}\n"
"contract Child is Parent{\n"
" function foo() returns (uint256) { return Parent.m_aMember; }\n"
"}\n";
BOOST_CHECK_NO_THROW(parseTextAndResolveNamesWithChecks(text));
}
BOOST_AUTO_TEST_CASE(base_class_state_variable_internal_member)
{
char const* text = "contract Parent {\n"
" uint256 internal m_aMember;\n"
"}\n"
"contract Child is Parent{\n"
" function foo() returns (uint256) { return Parent.m_aMember; }\n"
"}\n";
BOOST_CHECK_NO_THROW(parseTextAndResolveNamesWithChecks(text));
}
BOOST_AUTO_TEST_CASE(state_variable_member_of_wrong_class1)
{
char const* text = "contract Parent1 {\n"
" uint256 internal m_aMember1;\n"
"}\n"
"contract Parent2 is Parent1{\n"
" uint256 internal m_aMember2;\n"
"}\n"
"contract Child is Parent2{\n"
" function foo() returns (uint256) { return Parent2.m_aMember1; }\n"
"}\n";
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
}
BOOST_AUTO_TEST_CASE(state_variable_member_of_wrong_class2)
{
char const* text = "contract Parent1 {\n"
" uint256 internal m_aMember1;\n"
"}\n"
"contract Parent2 is Parent1{\n"
" uint256 internal m_aMember2;\n"
"}\n"
"contract Child is Parent2{\n"
" function foo() returns (uint256) { return Child.m_aMember2; }\n"
" uint256 public m_aMember3;\n"
"}\n";
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
}
BOOST_AUTO_TEST_CASE(fallback_function)
{
char const* text = R"(

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