ViewerRef

Struct ViewerRef

pub struct ViewerRef<Source: ?Sized, Target: ?Sized> { /* private fields */ }

Implementations§

impl<Source: ?Sized, Target: ?Sized> ViewerRef<Source, Target>

pub fn state(viewer: &Self) -> State

pub fn map<Target2, Map>(viewer: Self, map: Map) -> ViewerRef<Source, Target2>
where Target2: ?Sized + 'static, Map: for<'a> FnOnce(&'a Target) -> &'a Target2,

pub fn try_map<Target2, Err, Map>( viewer: Self, map: Map, ) -> Result<ViewerRef<Source, Target2>, Err>
where Target2: ?Sized + 'static, Map: for<'a> FnOnce(&'a Target) -> Result<&'a Target2, Err>,

Trait Implementations§

impl<Source: ?Sized, Target: ?Sized> Clone for ViewerRef<Source, Target>

fn clone(&self) -> Self

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl<Source: ?Sized, Target: ?Sized> Debug for ViewerRef<Source, Target>

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

Formats the value using the given formatter. Read more

impl<Source: ?Sized, Target: ?Sized> Deref for ViewerRef<Source, Target>

type Target = Target

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<Source: ?Sized, Target: ?Sized> Drop for ViewerRef<Source, Target>

fn drop(&mut self)

Executes the destructor for this type. Read more

impl<Source: ?Sized> From<&Viewer<Source>> for ViewerRef<Source, Source>

fn from(value: &Viewer<Source>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized, Target: ?Sized> From<&ViewerRef<Source, Target>> for Holder<Source>

fn from(value: &ViewerRef<Source, Target>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized, Target: ?Sized> From<&ViewerRef<Source, Target>> for Viewer<Source>

fn from(value: &ViewerRef<Source, Target>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized> From<Owner<Source>> for ViewerRef<Source, Source>

fn from(value: Owner<Source>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized, Target: ?Sized> From<OwnerRef<Source, Target>> for ViewerRef<Source, Target>

fn from(value: OwnerRef<Source, Target>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized> From<Viewer<Source>> for ViewerRef<Source, Source>

fn from(value: Viewer<Source>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized, Target: ?Sized> From<ViewerRef<Source, Target>> for Holder<Source>

fn from(value: ViewerRef<Source, Target>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized, Target: ?Sized> From<ViewerRef<Source, Target>> for Viewer<Source>

fn from(value: ViewerRef<Source, Target>) -> Self

Converts to this type from the input type.

impl<Source: ?Sized, Target: ?Sized> Hash for ViewerRef<Source, Target>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more

1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more

impl<Source: ?Sized, Target: ?Sized> PartialEq for ViewerRef<Source, Target>

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<Source: ?Sized> TryFrom<&Holder<Source>> for ViewerRef<Source, Source>

type Error = State

The type returned in the event of a conversion error.

fn try_from(holder: &Holder<Source>) -> Result<Self, Self::Error>

Performs the conversion.

impl<Source: ?Sized> TryFrom<Holder<Source>> for ViewerRef<Source, Source>

type Error = State

The type returned in the event of a conversion error.

fn try_from(holder: Holder<Source>) -> Result<Self, Self::Error>

Performs the conversion.

impl<Source: ?Sized, Target: ?Sized> TryFrom<ViewerRef<Source, Target>> for Owner<Source>

type Error = State

The type returned in the event of a conversion error.

fn try_from(value: ViewerRef<Source, Target>) -> Result<Self, Self::Error>

Performs the conversion.

impl<Source: ?Sized, Target: ?Sized> Eq for ViewerRef<Source, Target>

Auto Trait Implementations§

impl<Source, Target> Freeze for ViewerRef<Source, Target>
where Source: ?Sized, Target: ?Sized,

impl<Source, Target> !RefUnwindSafe for ViewerRef<Source, Target>

impl<Source, Target> !Send for ViewerRef<Source, Target>

impl<Source, Target> !Sync for ViewerRef<Source, Target>

impl<Source, Target> Unpin for ViewerRef<Source, Target>
where Source: Unpin + ?Sized, Target: ?Sized,

impl<Source, Target> !UnwindSafe for ViewerRef<Source, Target>

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)

The target type on which the method may be called.

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.