Struct components::engine::d2::util::Value

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pub struct Value<A> where
    A: Display + PartialEq<A> + Debug + Clone,  {
    pub value: A,
    pub signal: Option<Signal2<A, A>>,
}

Expand description

Wraps a single value, notifying listeners when the value changes.

Fields

value: Asignal: Option<Signal2<A, A>>

Implementations

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impl<A> Value<A> where
A: Display + PartialEq<A> + Debug + Clone,

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pub fn new(value: A, listener: Option<Rc<dyn Fn(&A, &A) + 'static>>) -> Value<A>

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pub fn watch(
&mut self,
listener: Rc<dyn Fn(&A, &A) + 'static>
) -> Option<impl Disposable>

Immediately calls a listener with the current value, and again whenever the value changes. @returns A handle that can be disposed to stop watching for changes.

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pub fn get(&self) -> &A

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pub fn set(&mut self, new_value: A)

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pub fn changed(&mut self) -> Option<Signal2<A, A>>

Trait Implementations

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impl<A> Clone for Value<A> where
A: Clone + Display + PartialEq<A> + Debug,

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fn clone(&self) -> Value<A>

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl<A> Debug for Value<A> where
A: Display + PartialEq<A> + Debug + Clone,

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

Formats the value using the given formatter. Read more

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impl<A> Display for Value<A> where
A: Display + PartialEq<A> + Debug + Clone,

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl<A> !RefUnwindSafe for Value<A>

impl<A> !Send for Value<A>

impl<A> !Sync for Value<A>

impl<A> Unpin for Value<A> where
A: Unpin,

impl<A> !UnwindSafe for Value<A>

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> Downcast<T> for T

fn downcast(&self) -> &T

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<Target, From> Getter<From> for Target where
From: AsRef<Target>,

fn get(from: &From) -> &Target

Typed getter

impl<'a, T, C, M> Inspect<'a, C, &'a C, M> for T

fn inspect(ctx: &'a mut C) -> &'a C

Inspect the context.

impl<'a, T, C, M> Inspect<'a, C, &'a mut C, M> for T

fn inspect(ctx: &'a mut C) -> &'a mut C

Inspect the context.

impl<'a, T, C, M> Inspect<'a, C, (), M> for T

fn inspect(&'a mut C)

Inspect the context.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<Fr, To> IntoColor<To> for Fr where
To: FromColor<Fr>,

fn into_color(self) -> To

Convert into color

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> SetParameter for T

fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where
T: Parameter<Self>,

Sets value as a parameter of self.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T> ToString for T where
T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct components::engine::d2::util::Value

Fields

Implementations

impl<A> Value<A> where A: Display + PartialEq<A> + Debug + Clone,

pub fn new(value: A, listener: Option<Rc<dyn Fn(&A, &A) + 'static>>) -> Value<A>

pub fn watch( &mut self, listener: Rc<dyn Fn(&A, &A) + 'static>) -> Option<impl Disposable>

pub fn get(&self) -> &A

pub fn set(&mut self, new_value: A)

pub fn changed(&mut self) -> Option<Signal2<A, A>>

Trait Implementations

impl<A> Clone for Value<A> where A: Clone + Display + PartialEq<A> + Debug,

fn clone(&self) -> Value<A>

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

impl<A> Debug for Value<A> where A: Display + PartialEq<A> + Debug + Clone,

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

impl<A> Display for Value<A> where A: Display + PartialEq<A> + Debug + Clone,

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

Auto Trait Implementations

impl<A> !RefUnwindSafe for Value<A>

impl<A> !Send for Value<A>

impl<A> !Sync for Value<A>

impl<A> Unpin for Value<A> where A: Unpin,

impl<A> !UnwindSafe for Value<A>

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> Downcast<T> for T

fn downcast(&self) -> &T

impl<T> From<T> for T

fn from(t: T) -> T

impl<Target, From> Getter<From> for Target where From: AsRef<Target>,

fn get(from: &From) -> &Target

impl<'a, T, C, M> Inspect<'a, C, &'a C, M> for T

fn inspect(ctx: &'a mut C) -> &'a C

impl<'a, T, C, M> Inspect<'a, C, &'a mut C, M> for T

fn inspect(ctx: &'a mut C) -> &'a mut C

impl<'a, T, C, M> Inspect<'a, C, (), M> for T

fn inspect(&'a mut C)

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<Fr, To> IntoColor<To> for Fr where To: FromColor<Fr>,

fn into_color(self) -> To

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> SetParameter for T

fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where T: Parameter<Self>,

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T> ToString for T where T: Display + ?Sized,

default fn to_string(&self) -> String

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> Upcast<T> for T

fn upcast(&self) -> Option<&T>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

impl<A> Value<A> where
A: Display + PartialEq<A> + Debug + Clone,

pub fn watch(
&mut self,
listener: Rc<dyn Fn(&A, &A) + 'static>
) -> Option<impl Disposable>

impl<A> Clone for Value<A> where
A: Clone + Display + PartialEq<A> + Debug,

impl<A> Debug for Value<A> where
A: Display + PartialEq<A> + Debug + Clone,

impl<A> Display for Value<A> where
A: Display + PartialEq<A> + Debug + Clone,

impl<A> Unpin for Value<A> where
A: Unpin,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<Target, From> Getter<From> for Target where
From: AsRef<Target>,

impl<T, U> Into<U> for T where
U: From<T>,

impl<Fr, To> IntoColor<To> for Fr where
To: FromColor<Fr>,

fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where
T: Parameter<Self>,

impl<T> ToOwned for T where
T: Clone,

impl<T> ToString for T where
T: Display + ?Sized,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,