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codegen: storing of non-value types; add some assertions

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This commit is contained in:
Yoichi Hirai 2016-11-25 15:38:02 +01:00
parent fa486f5b44
commit 548b7ce42d
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GPG Key ID: E7B75D080FCF7992
1 changed files with 5 additions and 8 deletions
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13
libsolidity/codegen/LValue.cpp
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@ -240,13 +240,6 @@ void StorageItem::storeValue(Type const& _sourceType, SourceLocation const& _loc
}
else
{
if (_sourceType.sizeOnStack() == 1)
{
m_context << Instruction::SWAP2;
utils.convertType(_sourceType, *m_dataType, true);
m_context << Instruction::SWAP2;
}
// OR the value into the other values in the storage slot
m_context << u256(0x100) << Instruction::EXP;
// stack: value storage_ref multiplier
@ -263,6 +256,7 @@ void StorageItem::storeValue(Type const& _sourceType, SourceLocation const& _loc
// stack: value storage_ref cleared_value multiplier value
if (FunctionType const* fun = dynamic_cast<decltype(fun)>(m_dataType))
{
solAssert(_sourceType == *m_dataType, "function item stored but target is not equal to source");
if (fun->location() == FunctionType::Location::External)
// Combine the two-item function type into a single stack slot.
utils.combineExternalFunctionType(false);
@ -272,14 +266,17 @@ void StorageItem::storeValue(Type const& _sourceType, SourceLocation const& _loc
Instruction::AND;
}
else if (m_dataType->category() == Type::Category::FixedBytes)
{
solAssert(_sourceType.category() == Type::Category::FixedBytes, "source not fixed bytes");
m_context
<< (u256(0x1) << (256 - 8 * dynamic_cast<FixedBytesType const&>(*m_dataType).numBytes()))
<< Instruction::SWAP1 << Instruction::DIV;
}
else
{
solAssert(m_dataType->sizeOnStack() == 1, "Invalid stack size for opaque type.");
// remove the higher order bits
utils.convertType(*m_dataType, *m_dataType, true, true);
utils.convertType(_sourceType, *m_dataType, true, true);
}
m_context << Instruction::MUL << Instruction::OR;
// stack: value storage_ref updated_value