Attribute Macro adsabs_macro::make_optional

#[make_optional]

Processes a struct to convert the fields to Options

For now, this will always convert all field types to Option, but the goal is to someday add filtering for skipping some fields. The usage is straightforward: just decorate your struct with #[make_optional]. For example, the following

use adsabs_macro::make_optional;

#[make_optional]
struct ExampleStruct {
    id: usize,
    name: String,
}

will be re-written to something like

struct ExampleStruct {
    id: Option<usize>,
    name: Option<String>,
}