Struct ChildNameScope 

pub struct ChildNameScope { /* private fields */ }

A name scope nested in another one: names that are not found once the scope is complete are looked up in the parent scope.

Implementations

impl ChildNameScope

pub fn new(parent_scope: NameScopeRef) -> Self

Trait Implementations

impl INameScope for ChildNameScope

fn try_register( &self, name: &str, element: Ref<FerroObject>, ) -> Result<(), NameScopeError>

Registers an element in the name scope, reporting a completed scope and a name that another element is registered with as errors. Registering an element again with its name does nothing.

fn find_async( &self, name: &str, ) -> SynchronousCompletionAsyncResult<Option<Ref<FerroObject>>>

Finds a named element in the name scope, waits for the scope to be completely populated before returning None. Returned results always complete synchronously.

fn find(&self, name: &str) -> Option<Ref<FerroObject>>

Finds a named element in the name scope, returns immediately, doesn’t traverse the name scope stack.

fn complete(&self)

Marks the name scope as completed, no further registrations will be allowed.

fn is_completed(&self) -> bool

Whether the name scope is completed, no further registrations are allowed.

fn attached_to(&self, owner: &Ref<FerroObject>)

The scope became the value of the attached NameScope property of owner, which holds it from now on. Not a member of the managed original: there the scope and the element hold each other and the collector frees both; here the scope holds this one element weakly (it finds it as long as it is alive). A scope that holds no elements itself has nothing to do.

fn detached_from(&self, owner: &Ref<FerroObject>)

The scope is no longer the value of the attached NameScope property of owner: it holds the element as every other again.

fn register(&self, name: &str, element: Ref<FerroObject>)

Registers an element in the name scope. Panics if the scope is completed or another element is registered with the name: see try_register for the form that reports these as errors.