Struct Options 

pub struct Options<'o, 'a> { /* private fields */ }

The resolved options passed to Function::resolve. Their order is not significant; a repeated name (a Duplicate Option Name, which the build rejects) resolves to the last.

Implementations

impl<'o, 'a> Options<'o, 'a>

pub fn get(&self, name: &str) -> Option<OptionValue<'o, 'a>>

The option named name (NFC).

pub fn iter(&self) -> impl Iterator<Item = (&'a str, OptionValue<'o, 'a>)> + 'o

Every option, in source order.

pub fn len(&self) -> usize

The number of options.

pub fn is_empty(&self) -> bool

Whether there are none.

Trait Implementations

impl<'o, 'a> Clone for Options<'o, 'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'o, 'a> Copy for Options<'o, 'a>

impl Debug for Options<'_, '_>

How many options there are. Written apart from the iterator a handler uses (iter), so that a client’s build inlines that as before.

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

Formats the value using the given formatter.