Struct ElementCardinality 

pub struct ElementCardinality {
    pub path: String,
    pub min: usize,
    pub max: Option<usize>,
}

Element cardinality constraint

Defines the minimum and maximum occurrences allowed for a FHIR element. This structure is shared between the validator and code generator.

Fields

path: String

Element path (e.g., “Patient.identifier”, “Patient.name”)

min: usize

Minimum occurrences (0 = optional, 1+ = required)

max: Option<usize>

Maximum occurrences (None = unbounded (*), Some(n) = up to n)

Implementations

impl ElementCardinality

pub fn new(path: impl Into<String>, min: usize, max: Option<usize>) -> Self

Create a new cardinality constraint

pub fn is_unbounded(&self) -> bool

Check if the cardinality allows unbounded occurrences

pub fn is_required(&self) -> bool

Check if the element is required (min > 0)

pub fn is_array(&self) -> bool

Check if the element can be an array (max > 1 or unbounded)

pub fn to_fhir_notation(&self) -> String

Format cardinality as FHIR notation (e.g., “0..1”, “1..*”, “0..5”)

Trait Implementations

impl Clone for ElementCardinality

fn clone(&self) -> ElementCardinality

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ElementCardinality

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ElementCardinality

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ElementCardinality

fn eq(&self, other: &ElementCardinality) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ElementCardinality

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ElementCardinality

impl StructuralPartialEq for ElementCardinality