Struct Collection 

pub struct Collection { /* private fields */ }

Collection optimized for singleton case (90% of FHIRPath collections are single-element)

For small collections (≤4 items), uses SmallVec directly. For large collections (>4 items), wraps the vector in Arc to make cloning O(1).

Implementations

impl Collection

pub fn empty() -> Self

pub fn singleton(value: Value) -> Self

pub fn with_capacity(capacity: usize) -> Self

pub fn push(&mut self, value: Value)

pub fn iter(&self) -> impl Iterator<Item = &Value>

pub fn is_empty(&self) -> bool

pub fn len(&self) -> usize

pub fn get(&self, index: usize) -> Option<&Value>

Get a value by index

pub fn as_boolean(&self) -> Result<bool>

pub fn as_string(&self) -> Result<Arc<str>>

pub fn as_integer(&self) -> Result<i64>

Trait Implementations

impl Clone for Collection

fn clone(&self) -> Collection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Collection

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

Formats the value using the given formatter.