Error in generated code for self.position().offset()

[bbannier]

I would expect the following to generate code printing the offset of the unit field, but it looks like invalid code is generated so this does not compile

module foo;

public type X = unit {
    : uint8 { print self.position().offset(); }
};

$ spicyc -j foo.spicy
/private/var/folders/ht/vtb0rkbd4ws15vx02xdb84zw0000gn/T/foo_4401a488ba3fc7e5-8f847f58a5b1b22b.cc:322:44: error: no member named 'offset' in 'std::optional<hilti::rt::stream::SafeConstIterator>'; did you mean to use '->' instead of '.'?
    ::hilti::rt::print((*__self).__position.offset(), ::hilti::rt::Bool(true));
                                           ^
                                           ->
1 error generated.
[error] spicy-driver: JIT compilation failed