Refactor: None is not an ImportModule #3039
Merged
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ImportModule::None
is neither a module nor an import. (What would its contents or itsfrom
part be?) Therefore, the correct name for ImportModule would be ImportModuleOption, orOption<ImportModule>
in idiomatic Rust. Also, this change allows to enforce non-None
modules by the type system, which is handy, but not strictly needed, for #3019.