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Joined 1 year ago
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Cake day: August 5th, 2023

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  • It may be possible to use the Any trait to “launder” the value by first casting it to &Any and then downcasting it to the generic type.

    let any_value = match tmp_value {
        serde_json::Value::Number(x) => x as &Any,
        // ...
    };
    
    let maybe_value = any_value.downcast_ref::< T >();
    

    I haven’t tested it, so I may have missed something.

    Edit: to be clear, this will not actually let you return multiple types, but let the caller decide which type to expect. I assumed this was your goal.