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Disallow conversion between unrelated contract types.

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This commit is contained in:
chriseth
2018-08-01 11:04:35 +01:00
committed by Alex Beregszaszi
parent 21888e246b
commit c8232d9759
16 changed files with 99 additions and 16 deletions
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libsolidity/ast/Types.cpp
+5 -6
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@@ -1403,15 +1403,15 @@ bool ContractType::isImplicitlyConvertibleTo(Type const& _convertTo) const
{
if (*this == _convertTo)
return true;
if (_convertTo.category() == Category::Integer)
return dynamic_cast<IntegerType const&>(_convertTo).isAddress();
if (_convertTo.category() == Category::Contract)
{
auto const& bases = contractDefinition().annotation().linearizedBaseContracts;
if (m_super && bases.size() <= 1)
return false;
return find(m_super ? ++bases.begin() : bases.begin(), bases.end(),
&dynamic_cast<ContractType const&>(_convertTo).contractDefinition()) != bases.end();
return find(
m_super ? ++bases.begin() : bases.begin(), bases.end(),
&dynamic_cast<ContractType const&>(_convertTo).contractDefinition()
) != bases.end();
}
return false;
}
@@ -1420,8 +1420,7 @@ bool ContractType::isExplicitlyConvertibleTo(Type const& _convertTo) const
{
return
isImplicitlyConvertibleTo(_convertTo) ||
_convertTo.category() == Category::Integer ||
_convertTo.category() == Category::Contract;
_convertTo == IntegerType(160, IntegerType::Modifier::Address);
}
bool ContractType::isPayable() const