Struct WeakExtensionRegistry

pub struct WeakExtensionRegistry { /* private fields */ }

The equivalent to an ExtensionRegistry that only contains weak references.

This is used to resolve extensions pointers while the extensions themselves (and the Arc that contains them) are being initialized.

Implementations

impl WeakExtensionRegistry

pub fn new( extensions: impl IntoIterator<Item = (ExtensionId, Weak<Extension>)>, ) -> Self

Create a new weak registry from a list of extensions and their ids.

pub fn get(&self, name: &str) -> Option<&Weak<Extension>>

Gets the Extension with the given name

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

Returns true if the registry contains an extension with the given name.

pub fn register( &mut self, id: ExtensionId, ext: impl Into<Weak<Extension>>, ) -> bool

Register a new extension in the registry.

Returns true if the extension was added, false if it was already present.

pub fn iter(&self) -> impl Iterator<Item = (&ExtensionId, &Weak<Extension>)>

Returns an iterator over the weak references in the registry and their ids.

pub fn extensions(&self) -> impl Iterator<Item = &Weak<Extension>>

Returns an iterator over the weak references in the registry.

pub fn ids(&self) -> impl Iterator<Item = &ExtensionId>

Returns an iterator over the extension ids in the registry.

Trait Implementations

impl Clone for WeakExtensionRegistry

fn clone(&self) -> WeakExtensionRegistry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WeakExtensionRegistry

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

Formats the value using the given formatter.

impl Default for WeakExtensionRegistry

fn default() -> WeakExtensionRegistry

Returns the “default value” for a type.

impl Display for WeakExtensionRegistry

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

Formats the value using the given formatter.

impl<'a> From<&'a ExtensionRegistry> for WeakExtensionRegistry

fn from(reg: &'a ExtensionRegistry) -> Self

Converts to this type from the input type.

impl IntoIterator for WeakExtensionRegistry

type Item = Weak<Extension>

The type of the elements being iterated over.

type IntoIter = IntoValues<IdentList, Weak<Extension>>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl<'a> TryFrom<&'a WeakExtensionRegistry> for ExtensionRegistry

type Error = ()

The type returned in the event of a conversion error.

fn try_from(weak: &'a WeakExtensionRegistry) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<WeakExtensionRegistry> for ExtensionRegistry

type Error = ()

The type returned in the event of a conversion error.

fn try_from(weak: WeakExtensionRegistry) -> Result<Self, Self::Error>

Performs the conversion.