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Parsing and type checking of libraries without inheritance.

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This commit is contained in:
chriseth
2015-09-11 15:21:37 +02:00
parent c5b6d9d2a9
commit 337fde9d11
8 changed files with 85 additions and 13 deletions
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libsolidity/AST.cpp
+18
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@@ -103,6 +103,9 @@ void ContractDefinition::checkTypeRequirements()
));
hashes.insert(hash);
}
if (isLibrary())
checkLibraryRequirements();
}
map<FixedHash<4>, FunctionTypePointer> ContractDefinition::interfaceFunctions() const
@@ -332,6 +335,17 @@ void ContractDefinition::checkExternalTypeClashes() const
));
}
void ContractDefinition::checkLibraryRequirements() const
{
solAssert(m_isLibrary, "");
if (!m_baseContracts.empty())
BOOST_THROW_EXCEPTION(createTypeError("Library is not allowed to inherit."));
for (auto const& var: m_stateVariables)
if (!var->isConstant())
BOOST_THROW_EXCEPTION(var->createTypeError("Library cannot have non-constant state variables"));
}
vector<ASTPointer<EventDefinition>> const& ContractDefinition::interfaceEvents() const
{
if (!m_interfaceEvents)
@@ -449,6 +463,10 @@ void InheritanceSpecifier::checkTypeRequirements()
ContractDefinition const* base = dynamic_cast<ContractDefinition const*>(&m_baseName->referencedDeclaration());
solAssert(base, "Base contract not available.");
if (base->isLibrary())
BOOST_THROW_EXCEPTION(createTypeError("Libraries cannot be inherited from."));
TypePointers parameterTypes = ContractType(*base).constructorType()->parameterTypes();
if (!m_arguments.empty() && parameterTypes.size() != m_arguments.size())
BOOST_THROW_EXCEPTION(createTypeError(