Struct freya::prelude::GlobalMemo
source · pub struct GlobalMemo<T>where
T: 'static,{ /* private fields */ }
Expand description
A signal that can be accessed from anywhere in the application and created in a static
Implementations§
source§impl<T> GlobalMemo<T>where
T: PartialEq + 'static,
impl<T> GlobalMemo<T>where
T: PartialEq + 'static,
sourcepub const fn new(selector: fn() -> T) -> GlobalMemo<T>where
T: PartialEq,
pub const fn new(selector: fn() -> T) -> GlobalMemo<T>where
T: PartialEq,
Create a new global signal
sourcepub fn origin_scope(&self) -> ScopeId
pub fn origin_scope(&self) -> ScopeId
Get the scope the signal was created in.
sourcepub fn id(&self) -> GenerationalBoxId
pub fn id(&self) -> GenerationalBoxId
Get the generational id of the signal.
Trait Implementations§
source§impl<T> Debug for GlobalMemo<T>
impl<T> Debug for GlobalMemo<T>
source§impl<T> Deref for GlobalMemo<T>
impl<T> Deref for GlobalMemo<T>
Allow calling a signal with memo() syntax
Currently only limited to copy types, though could probably specialize for string/arc/rc
source§impl<T> Display for GlobalMemo<T>
impl<T> Display for GlobalMemo<T>
source§impl<T> PartialEq<T> for GlobalMemo<T>where
T: PartialEq + 'static,
impl<T> PartialEq<T> for GlobalMemo<T>where
T: PartialEq + 'static,
source§impl<T> Readable for GlobalMemo<T>where
T: PartialEq + 'static,
impl<T> Readable for GlobalMemo<T>where
T: PartialEq + 'static,
§type Storage = UnsyncStorage
type Storage = UnsyncStorage
The type of the storage this readable uses.
source§fn try_read_unchecked(
&self
) -> Result<<<GlobalMemo<T> as Readable>::Storage as AnyStorage>::Ref<'static, <GlobalMemo<T> as Readable>::Target>, BorrowError>
fn try_read_unchecked( &self ) -> Result<<<GlobalMemo<T> as Readable>::Storage as AnyStorage>::Ref<'static, <GlobalMemo<T> as Readable>::Target>, BorrowError>
Try to get a reference to the value without checking the lifetime. This will subscribe the current scope to the signal. Read more
source§fn peek_unchecked(
&self
) -> <<GlobalMemo<T> as Readable>::Storage as AnyStorage>::Ref<'static, <GlobalMemo<T> as Readable>::Target>
fn peek_unchecked( &self ) -> <<GlobalMemo<T> as Readable>::Storage as AnyStorage>::Ref<'static, <GlobalMemo<T> as Readable>::Target>
Get the current value of the signal without checking the lifetime. Unlike read, this will not subscribe the current scope to the signal which can cause parts of your UI to not update. Read more
source§fn read(&self) -> <Self::Storage as AnyStorage>::Ref<'_, Self::Target>
fn read(&self) -> <Self::Storage as AnyStorage>::Ref<'_, Self::Target>
Get the current value of the state. If this is a signal, this will subscribe the current scope to the signal.
If the value has been dropped, this will panic. Calling this on a Signal is the same as
using the signal() syntax to read and subscribe to its value
source§fn try_read(
&self
) -> Result<<Self::Storage as AnyStorage>::Ref<'_, Self::Target>, BorrowError>
fn try_read( &self ) -> Result<<Self::Storage as AnyStorage>::Ref<'_, Self::Target>, BorrowError>
Try to get the current value of the state. If this is a signal, this will subscribe the current scope to the signal.
source§fn read_unchecked(
&self
) -> <Self::Storage as AnyStorage>::Ref<'static, Self::Target>
fn read_unchecked( &self ) -> <Self::Storage as AnyStorage>::Ref<'static, Self::Target>
Get a reference to the value without checking the lifetime. This will subscribe the current scope to the signal. Read more
source§fn peek(&self) -> <Self::Storage as AnyStorage>::Ref<'_, Self::Target>
fn peek(&self) -> <Self::Storage as AnyStorage>::Ref<'_, Self::Target>
Get the current value of the state without subscribing to updates. If the value has been dropped, this will panic.
source§fn with<O>(&self, f: impl FnOnce(&Self::Target) -> O) -> O
fn with<O>(&self, f: impl FnOnce(&Self::Target) -> O) -> O
Run a function with a reference to the value. If the value has been dropped, this will panic.
Auto Trait Implementations§
impl<T> Freeze for GlobalMemo<T>
impl<T> RefUnwindSafe for GlobalMemo<T>
impl<T> Send for GlobalMemo<T>
impl<T> Sync for GlobalMemo<T>
impl<T> Unpin for GlobalMemo<T>
impl<T> UnwindSafe for GlobalMemo<T>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<T, R> ReadableOptionExt<T> for R
impl<T, R> ReadableOptionExt<T> for R
source§impl<T, R> ReadableVecExt<T> for R
impl<T, R> ReadableVecExt<T> for R
source§fn first(&self) -> Option<<Self::Storage as AnyStorage>::Ref<'_, T>>
fn first(&self) -> Option<<Self::Storage as AnyStorage>::Ref<'_, T>>
Get the first element of the inner vector.
source§fn last(&self) -> Option<<Self::Storage as AnyStorage>::Ref<'_, T>>
fn last(&self) -> Option<<Self::Storage as AnyStorage>::Ref<'_, T>>
Get the last element of the inner vector.
source§impl<T, O> SuperFrom<T> for Owhere
O: From<T>,
impl<T, O> SuperFrom<T> for Owhere
O: From<T>,
source§fn super_from(input: T) -> O
fn super_from(input: T) -> O
Convert from a type to another type.
source§impl<T, O, M> SuperInto<O, M> for Twhere
O: SuperFrom<T, M>,
impl<T, O, M> SuperInto<O, M> for Twhere
O: SuperFrom<T, M>,
source§fn super_into(self) -> O
fn super_into(self) -> O
Convert from a type to another type.