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//! Distance
//!
//! URL: http://hl7.org/fhir/StructureDefinition/Distance
//!
//! Version: 5.0.0
//!
//! Distance Type: A length - a value with a unit that is a physical distance.
//!
//! FHIR: <https://build.fhir.org/>
//!
//! UML: <https://build.fhir.org/uml.html>
// Allow unused crate::r5::types as types;
#![allow(unused_imports)]
use crate::r5::types;
use ::serde::{Deserialize, Serialize};
use fhir_derive_macros::Validate;
/// A length - a value with a unit that is a physical distance.
///
/// Distance is a measured amount (or an amount that can potentially be
/// measured) expressed as a numerical value together with a unit of
/// measure. It builds on the FHIR Quantity structure, adding a comparator
/// and a coded unit representation so distances can be compared and
/// processed unambiguously across systems.
///
/// # Examples
///
/// ```
/// use fhir::r5::types::distance::Distance;
///
/// let value = Distance::default();
/// let json = ::serde_json::to_value(&value).unwrap();
/// let back: Distance = ::serde_json::from_value(json).unwrap();
/// assert_eq!(value, back);
/// ```
#[serde_with::skip_serializing_none]
#[derive(Debug, Default, Clone, Serialize, Deserialize, PartialEq, Eq, Validate)]
#[serde(rename_all = "camelCase")]
pub struct Distance {
/// Unique id for inter-element referencing
pub id: Option<types::String>,
/// Additional content defined by implementations
pub extension: Option<Vec<types::Extension>>,
/// Numerical value (with implicit precision)
pub value: Option<types::Decimal>,
/// < | <= | >= | > | ad - how to understand the value
pub comparator: Option<types::Code>,
/// Unit representation
pub unit: Option<types::String>,
/// System that defines coded unit form
pub system: Option<types::Uri>,
/// Coded form of the unit
pub code: Option<types::Code>,
}
#[cfg(test)]
mod tests {
use super::*;
type T = Distance;
#[test]
fn test_default() {
let _ = T::default();
}
#[test]
fn test_serde_round_trip() {
let value = T::default();
let json = ::serde_json::to_value(&value).expect("to_value");
let back: T = ::serde_json::from_value(json).expect("from_value");
assert_eq!(value, back);
}
}