Struct ariadne::FnCache

pub struct FnCache<Id, F, I>
where
    I: AsRef<str>,
{ /* private fields */ }

A Cache that fetches Sources using the provided function.

Implementations

impl<Id, F, I> FnCache<Id, F, I>

where I: AsRef<str>,

pub fn new(get: F) -> Self

Create a new FnCache with the given fetch function.

pub fn with_sources(self, sources: HashMap<Id, Source<I>>) -> Self

where Id: Eq + Hash,

Pre-insert a selection of Sources into this cache.

Trait Implementations

impl<Id: Display + Hash + PartialEq + Eq + Clone, F, I> Cache<Id> for FnCache<Id, F, I>

where I: AsRef<str>, F: for<'a> FnMut(&'a Id) -> Result<I, Box<dyn Debug>>,

type Storage = I

The type used to store the string data for this cache.

fn fetch(&mut self, id: &Id) -> Result<&Source<I>, Box<dyn Debug + '_>>

Fetch the Source identified by the given ID, if possible.

fn display<'a>(&self, id: &'a Id) -> Option<Box<dyn Display + 'a>>

Display the given ID. as a single inline value.

impl<Id: Clone, F: Clone, I> Clone for FnCache<Id, F, I>

where I: AsRef<str> + Clone,

fn clone(&self) -> FnCache<Id, F, I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Id: Debug, F: Debug, I> Debug for FnCache<Id, F, I>

where I: AsRef<str> + Debug,

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

Formats the value using the given formatter.