Enum FunctionCategory 

pub enum FunctionCategory {
    Existence,
    Filtering,
    Subsetting,
    Combining,
    Conversion,
    String,
    Math,
    Tree,
    Utility,
    Boolean,
    Datetime,
    Types,
    SqlOnFhir,
    Terminology,
    Other,
}

The FHIRPath function catalog and the FHIRPath environment variables, re-exported for a completion endpoint’s function/variable candidates.

helios_fhirpath is already this crate’s own dependency (used above to parse every expression this module lints); re-exporting these four items here — rather than a caller like helios-ui taking a direct helios-fhirpath dependency of its own just to read a static catalog — keeps that catalog reachable through the one edge helios-ui already has to this crate, the same way node_keys exposes the key model instead of a caller duplicating it. A closed set of groupings for FunctionInfo::category, mirroring the section structure of the FHIRPath functions specification plus the FHIR- and SQL-on-FHIR-specific extensions this crate adds.

Variants

Existence

Existence checks and cardinality (empty, exists, count, …).

Filtering

Filtering and projection (where, select, ofType, …).

Subsetting

Subsetting a collection (first, skip, single, …).

Combining

Combining two collections (union, combine).

Conversion

Type conversion (toString, convertsToInteger, iif, …).

String

String manipulation (substring, replace, join, …).

Math

Arithmetic and numeric aggregation (abs, round, sum, …).

Tree

Tree navigation (children, descendants, extension).

Utility

General-purpose utilities (trace, now, defineVariable, …).

Boolean

Boolean logic functions (not).

Datetime

Date/time interval arithmetic (duration, difference).

Types

Type reflection (type).

SqlOnFhir

FHIRPath extensions specific to SQL-on-FHIR ViewDefinitions (getResourceKey, getReferenceKey) — not part of the base FHIRPath specification.

Terminology

Terminology operations (memberOf).

Other

Doesn’t fit the other categories cleanly (resolve, comparable).

Implementations

impl FunctionCategory

pub const fn as_str(self) -> &'static str

The wire/display form of this category, as used by API consumers (e.g. a JSON category field). Stable — treat as part of the public contract.

Trait Implementations

impl Clone for FunctionCategory

fn clone(&self) -> FunctionCategory

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FunctionCategory

impl Debug for FunctionCategory

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

Formats the value using the given formatter.

impl Display for FunctionCategory

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

Formats the value using the given formatter.

impl Eq for FunctionCategory

impl Hash for FunctionCategory

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FunctionCategory

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FunctionCategory