diff options
Diffstat (limited to 'libsolidity/codegen')
| -rw-r--r-- | libsolidity/codegen/CompilerUtils.cpp | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/libsolidity/codegen/CompilerUtils.cpp b/libsolidity/codegen/CompilerUtils.cpp index 22f97dfa..90eb74fe 100644 --- a/libsolidity/codegen/CompilerUtils.cpp +++ b/libsolidity/codegen/CompilerUtils.cpp @@ -1014,12 +1014,24 @@ void CompilerUtils::convertType( // stack: <address> <function_id> m_context << Instruction::POP; } - else if (stackTypeCategory == Type::Category::Function && targetTypeCategory == Type::Category::Function) - solAssert(_typeOnStack.isImplicitlyConvertibleTo(_targetType), "Invalid function type conversion requested."); else { - // All other types should not be convertible to non-equal types. - solAssert(_typeOnStack == _targetType, "Invalid type conversion requested."); + if (stackTypeCategory == Type::Category::Function && targetTypeCategory == Type::Category::Function) + { + FunctionType const& typeOnStack = dynamic_cast<FunctionType const&>(_typeOnStack); + FunctionType const& targetType = dynamic_cast<FunctionType const&>(_targetType); + solAssert( + typeOnStack.isImplicitlyConvertibleTo(targetType) && + typeOnStack.sizeOnStack() == targetType.sizeOnStack() && + (typeOnStack.kind() == FunctionType::Kind::Internal || typeOnStack.kind() == FunctionType::Kind::External) && + typeOnStack.kind() == targetType.kind(), + "Invalid function type conversion requested." + ); + } + else + // All other types should not be convertible to non-equal types. + solAssert(_typeOnStack == _targetType, "Invalid type conversion requested."); + if (_cleanupNeeded && _targetType.canBeStored() && _targetType.storageBytes() < 32) m_context << ((u256(1) << (8 * _targetType.storageBytes())) - 1) |