Determine geometry field at build time

[p4ken]

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[p4ken]

Plan 1

use geoserde::geometry;

#[derive(Default, Serialize)]
struct MyFeature {
    title: String,
    #[serde(with = "geometry")]
    location: Point,
}

• missing geometry => runtime error

Plan 2

use geoserde::GeoSerde;

#[derive(Default, Serialize, GeoSerde)]
struct MyFeature {
    title: String,
    #[geoserde(geometry)]
    location: Point,
}

• missing geometry => build error