Struct Extension 

pub struct Extension { /* private fields */ }

Cedar extension.

An extension can define new types and functions on those types. (Currently, there’s nothing preventing an extension from defining new functions on built-in types, either, although we haven’t discussed whether we want to allow this long-term.)

Implementations

impl Extension

pub fn new( name: Name, functions: impl IntoIterator<Item = ExtensionFunction>, types_with_operator_overloading: impl IntoIterator<Item = Name>, ) -> Self

Create a new Extension with the given name and extension functions

pub fn name(&self) -> &Name

Get the name of the extension

pub fn get_func(&self, name: &Name) -> Option<&ExtensionFunction>

Look up a function by name, or return None if the extension doesn’t provide a function with that name

pub fn funcs(&self) -> impl Iterator<Item = &ExtensionFunction>

Iterate over the functions

pub fn ext_types(&self) -> impl Iterator<Item = &Name> + '_

Iterate over the extension types that can be produced by any functions in this extension

pub fn types_with_operator_overloading( &self, ) -> impl Iterator<Item = &Name> + '_

Iterate over extension types with operator overloading

Trait Implementations

impl Debug for Extension

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

Formats the value using the given formatter.