Struct Registry 

pub struct Registry { /* private fields */ }

The function handlers an application links: closed world (B13). Build code generates it from exactly the functions the corpus uses, e.g. static REGISTRY: Registry = Registry::new(&[("integer", &mf2_runtime::functions::INTEGER)]); — an unused handler is never referenced, so never linked.

Implementations

impl Registry

pub const EMPTY: Registry

No functions: every annotation is an Unknown Function.

pub const fn new( functions: &'static [(&'static str, &'static dyn Function)], ) -> Registry

The registry of functions: (identifier, handler), the identifier as the catalog’s FUNCS has it (ns:name, NFC). The first entry of a repeated identifier wins.

pub const fn with_numbers(self, f: &'static dyn Function) -> Registry

This registry, with f formatting unannotated numeric values (integer, float and decimal arguments): mf2-fn-number’s localized exact value. The evaluator checks such a value as any unannotated value (a non-finite float is a Bad Operand) and then asks f for its direction, text, sub-parts and part kind; it still does not select. Without it they format in neutral digits (§2.6).

pub fn get(&self, name: &str) -> Option<&'static dyn Function>

The handler for name.

pub fn is_date_function(&self, name: &str) -> bool

Whether name (a FUNCS identifier) is a handler here that formats dates: its parts are "datetime" (Function::part_kind).

Trait Implementations

impl Clone for Registry

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Registry

impl Debug for Registry

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

Formats the value using the given formatter.