cerc-io/solidity
11
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Struct member access for storage and memory.

Browse Source
This commit is contained in:
chriseth
2020-06-03 10:37:39 +02:00
parent 37e8d78cff
commit e7f3c042b6
4 changed files with 60 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libsolidity/codegen/ir/IRGeneratorForStatements.cpp
+37 -1
View File
@@ -1467,7 +1467,43 @@ void IRGeneratorForStatements::endVisit(MemberAccess const& _memberAccess)
break;
case Type::Category::Struct:
{
solUnimplementedAssert(false, "");
auto const& structType = dynamic_cast<StructType const&>(*_memberAccess.expression().annotation().type);
IRVariable expression(_memberAccess.expression());
switch (structType.location())
{
case DataLocation::Storage:
{
pair<u256, unsigned> const& offsets = structType.storageOffsetsOfMember(member);
string slot = m_context.newYulVariable();
m_code << "let " << slot << " := " <<
("add(" + expression.name() + ", " + offsets.first.str() + ")\n");
setLValue(_memberAccess, IRLValue{
type(_memberAccess),
IRLValue::Storage{slot, offsets.second}
});
break;
}
case DataLocation::Memory:
{
string pos = m_context.newYulVariable();
m_code << "let " << pos << " := " <<
("add(" + expression.part("mpos").name() + ", " + structType.memoryOffsetOfMember(member).str() + ")\n");
setLValue(_memberAccess, IRLValue{
type(_memberAccess),
IRLValue::Memory{pos}
});
break;
}
case DataLocation::CallData:
{
solUnimplementedAssert(false, "");
break;
}
default:
solAssert(false, "Illegal data location for struct.");
}
break;
}
case Type::Category::Enum:
{