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Change type of super to TypeType

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This commit is contained in:
hrkrshnn
2020-11-10 15:38:21 +01:00
parent da92fe548e
commit 9eafa1fa1a
6 changed files with 190 additions and 151 deletions
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libsolidity/codegen/ExpressionCompiler.cpp
+74 -62
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@@ -1355,59 +1355,72 @@ bool ExpressionCompiler::visit(MemberAccess const& _memberAccess)
// for internal functions, or enum/struct definitions.
if (TypeType const* type = dynamic_cast<TypeType const*>(_memberAccess.expression().annotation().type))
{
if (dynamic_cast<ContractType const*>(type->actualType()))
if (auto contractType = dynamic_cast<ContractType const*>(type->actualType()))
{
solAssert(_memberAccess.annotation().type, "_memberAccess has no type");
if (auto variable = dynamic_cast<VariableDeclaration const*>(_memberAccess.annotation().referencedDeclaration))
appendVariable(*variable, static_cast<Expression const&>(_memberAccess));
else if (auto funType = dynamic_cast<FunctionType const*>(_memberAccess.annotation().type))
if (contractType->isSuper())
{
switch (funType->kind())
{
case FunctionType::Kind::Declaration:
break;
case FunctionType::Kind::Internal:
// We do not visit the expression here on purpose, because in the case of an
// internal library function call, this would push the library address forcing
// us to link against it although we actually do not need it.
if (auto const* function = dynamic_cast<FunctionDefinition const*>(_memberAccess.annotation().referencedDeclaration))
{
solAssert(*_memberAccess.annotation().requiredLookup == VirtualLookup::Static, "");
utils().pushCombinedFunctionEntryLabel(*function);
}
else
solAssert(false, "Function not found in member access");
break;
case FunctionType::Kind::Event:
if (!dynamic_cast<EventDefinition const*>(_memberAccess.annotation().referencedDeclaration))
solAssert(false, "event not found");
// no-op, because the parent node will do the job
break;
case FunctionType::Kind::DelegateCall:
_memberAccess.expression().accept(*this);
m_context << funType->externalIdentifier();
break;
case FunctionType::Kind::External:
case FunctionType::Kind::Creation:
case FunctionType::Kind::Send:
case FunctionType::Kind::BareCall:
case FunctionType::Kind::BareCallCode:
case FunctionType::Kind::BareDelegateCall:
case FunctionType::Kind::BareStaticCall:
case FunctionType::Kind::Transfer:
case FunctionType::Kind::ECRecover:
case FunctionType::Kind::SHA256:
case FunctionType::Kind::RIPEMD160:
default:
solAssert(false, "unsupported member function");
}
}
else if (dynamic_cast<TypeType const*>(_memberAccess.annotation().type))
{
// no-op
_memberAccess.expression().accept(*this);
solAssert(_memberAccess.annotation().referencedDeclaration, "Referenced declaration not resolved.");
solAssert(*_memberAccess.annotation().requiredLookup == VirtualLookup::Super, "");
utils().pushCombinedFunctionEntryLabel(m_context.superFunction(
dynamic_cast<FunctionDefinition const&>(*_memberAccess.annotation().referencedDeclaration),
contractType->contractDefinition()
));
}
else
_memberAccess.expression().accept(*this);
{
if (auto variable = dynamic_cast<VariableDeclaration const*>(_memberAccess.annotation().referencedDeclaration))
appendVariable(*variable, static_cast<Expression const&>(_memberAccess));
else if (auto funType = dynamic_cast<FunctionType const*>(_memberAccess.annotation().type))
{
switch (funType->kind())
{
case FunctionType::Kind::Declaration:
break;
case FunctionType::Kind::Internal:
// We do not visit the expression here on purpose, because in the case of an
// internal library function call, this would push the library address forcing
// us to link against it although we actually do not need it.
if (auto const* function = dynamic_cast<FunctionDefinition const*>(_memberAccess.annotation().referencedDeclaration))
{
solAssert(*_memberAccess.annotation().requiredLookup == VirtualLookup::Static, "");
utils().pushCombinedFunctionEntryLabel(*function);
}
else
solAssert(false, "Function not found in member access");
break;
case FunctionType::Kind::Event:
if (!dynamic_cast<EventDefinition const*>(_memberAccess.annotation().referencedDeclaration))
solAssert(false, "event not found");
// no-op, because the parent node will do the job
break;
case FunctionType::Kind::DelegateCall:
_memberAccess.expression().accept(*this);
m_context << funType->externalIdentifier();
break;
case FunctionType::Kind::External:
case FunctionType::Kind::Creation:
case FunctionType::Kind::Send:
case FunctionType::Kind::BareCall:
case FunctionType::Kind::BareCallCode:
case FunctionType::Kind::BareDelegateCall:
case FunctionType::Kind::BareStaticCall:
case FunctionType::Kind::Transfer:
case FunctionType::Kind::ECRecover:
case FunctionType::Kind::SHA256:
case FunctionType::Kind::RIPEMD160:
default:
solAssert(false, "unsupported member function");
}
}
else if (dynamic_cast<TypeType const*>(_memberAccess.annotation().type))
{
// no-op
}
else
_memberAccess.expression().accept(*this);
}
}
else if (auto enumType = dynamic_cast<EnumType const*>(type->actualType()))
{
@@ -1480,17 +1493,8 @@ bool ExpressionCompiler::visit(MemberAccess const& _memberAccess)
case Type::Category::Contract:
{
ContractType const& type = dynamic_cast<ContractType const&>(*_memberAccess.expression().annotation().type);
if (type.isSuper())
{
solAssert(!!_memberAccess.annotation().referencedDeclaration, "Referenced declaration not resolved.");
solAssert(*_memberAccess.annotation().requiredLookup == VirtualLookup::Super, "");
utils().pushCombinedFunctionEntryLabel(m_context.superFunction(
dynamic_cast<FunctionDefinition const&>(*_memberAccess.annotation().referencedDeclaration),
type.contractDefinition()
));
}
// ordinary contract type
else if (Declaration const* declaration = _memberAccess.annotation().referencedDeclaration)
if (Declaration const* declaration = _memberAccess.annotation().referencedDeclaration)
{
u256 identifier;
if (auto const* variable = dynamic_cast<VariableDeclaration const*>(declaration))
@@ -1592,8 +1596,11 @@ bool ExpressionCompiler::visit(MemberAccess const& _memberAccess)
solAssert(false, "Blockhash has been removed.");
else if (member == "creationCode" || member == "runtimeCode")
{
// FIXME For super this needs to be fixed
TypePointer arg = dynamic_cast<MagicType const&>(*_memberAccess.expression().annotation().type).typeArgument();
ContractDefinition const& contract = dynamic_cast<ContractType const&>(*arg).contractDefinition();
auto const& contractType = dynamic_cast<ContractType const&>(*arg);
solAssert(!contractType.isSuper(), "");
ContractDefinition const& contract = contractType.contractDefinition();
utils().fetchFreeMemoryPointer();
m_context << Instruction::DUP1 << u256(32) << Instruction::ADD;
utils().copyContractCodeToMemory(contract, member == "creationCode");
@@ -1610,7 +1617,10 @@ bool ExpressionCompiler::visit(MemberAccess const& _memberAccess)
else if (member == "name")
{
TypePointer arg = dynamic_cast<MagicType const&>(*_memberAccess.expression().annotation().type).typeArgument();
ContractDefinition const& contract = dynamic_cast<ContractType const&>(*arg).contractDefinition();
auto const& contractType = dynamic_cast<ContractType const&>(*arg);
ContractDefinition const& contract = contractType.isSuper() ?
*contractType.contractDefinition().superContract(m_context.mostDerivedContract()) :
dynamic_cast<ContractType const&>(*arg).contractDefinition();
utils().allocateMemory(((contract.name().length() + 31) / 32) * 32 + 32);
// store string length
m_context << u256(contract.name().length()) << Instruction::DUP2 << Instruction::MSTORE;
@@ -1960,9 +1970,11 @@ void ExpressionCompiler::endVisit(Identifier const& _identifier)
switch (magicVar->type()->category())
{
case Type::Category::Contract:
// "this" or "super"
if (!dynamic_cast<ContractType const&>(*magicVar->type()).isSuper())
if (dynamic_cast<ContractType const*>(magicVar->type()))
{
solAssert(_identifier.name() == "this", "");
m_context << Instruction::ADDRESS;
}
break;
default:
break;