Type Definition warpgrapher::engine::events::BeforeEngineBuildFunc

pub type BeforeEngineBuildFunc = fn(_: &mut Configuration) -> Result<(), Error>;

Type alias for a function called before the engine is built and enable modifications to the configuration. A common use case is adding common properties to all types in the model.

Examples

fn before_engine_build_func(config: &mut Configuration) -> Result<(), Error> {
    for t in config.model.iter_mut() {
        let mut_props: &mut Vec<Property> = t.mut_props();
        mut_props.push(Property::new(
            "global_prop".to_string(),
            UsesFilter::all(),
            "String".to_string(),
            false,
            false,
            None,
            None
        ));
    }
    Ok(())
}