Struct parity_scale_codec::Ref

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pub struct Ref<'a, T: EncodeLike<U>, U: Encode>(_, _);

Expand description

Reference wrapper that implement encode like any type that is encoded like its inner type.

Example

fn foo<T: EncodeLike<u8>>(t: T) -> T {
    store_t(Ref::from(&t)); // Store t without moving it, but only using a reference.
    t
}

fn store_t<T: EncodeLike<u8>>(t: T) {
}

Trait Implementations

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impl<'a, T: EncodeLike, U: Encode> Deref for Ref<'a, T, U>

type Target = T

The resulting type after dereferencing.

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

Dereferences the value.

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impl<'a, T: EncodeLike, U: Encode> From<&'a T> for Ref<'a, T, U>

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fn from(x: &'a T) -> Self

Performs the conversion.

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impl<'a, T: EncodeLike, U: Encode> EncodeLike for Ref<'a, T, U>

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impl<'a, T: EncodeLike, U: Encode> EncodeLike for &Ref<'a, T, U>

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impl<'a, T: EncodeLike, U: Encode> WrapperTypeEncode for Ref<'a, T, U>

Auto Trait Implementations

impl<'a, T, U> RefUnwindSafe for Ref<'a, T, U> where
T: RefUnwindSafe,
U: RefUnwindSafe,

impl<'a, T, U> Send for Ref<'a, T, U> where
T: Sync,
U: Send,

impl<'a, T, U> Sync for Ref<'a, T, U> where
T: Sync,
U: Sync,

impl<'a, T, U> Unpin for Ref<'a, T, U> where
U: Unpin,

impl<'a, T, U> UnwindSafe for Ref<'a, T, U> where
T: RefUnwindSafe,
U: UnwindSafe,

Blanket Implementations

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

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pub 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

pub 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

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

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

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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

pub 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

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

Performs the conversion.

Struct parity_scale_codec::Ref

Example

Trait Implementations

impl<'a, T: EncodeLike<U>, U: Encode> Deref for Ref<'a, T, U>

type Target = T

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

impl<'a, T: EncodeLike<U>, U: Encode> From<&'a T> for Ref<'a, T, U>

fn from(x: &'a T) -> Self

impl<'a, T: EncodeLike<U>, U: Encode> EncodeLike<U> for Ref<'a, T, U>

impl<'a, T: EncodeLike<U>, U: Encode> EncodeLike<U> for &Ref<'a, T, U>

impl<'a, T: EncodeLike<U>, U: Encode> WrapperTypeEncode for Ref<'a, T, U>

Auto Trait Implementations

impl<'a, T, U> RefUnwindSafe for Ref<'a, T, U> where
T: RefUnwindSafe,
U: RefUnwindSafe,

impl<'a, T, U> Send for Ref<'a, T, U> where
T: Sync,
U: Send,

impl<'a, T, U> Sync for Ref<'a, T, U> where
T: Sync,
U: Sync,

impl<'a, T, U> Unpin for Ref<'a, T, U> where
U: Unpin,

impl<'a, T, U> UnwindSafe for Ref<'a, T, U> where
T: RefUnwindSafe,
U: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Error = Infallible

pub 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

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

Struct parity_scale_codec::Ref

Example

Trait Implementations

impl<'a, T: EncodeLike<U>, U: Encode> Deref for Ref<'a, T, U>

type Target = T

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

impl<'a, T: EncodeLike<U>, U: Encode> From<&'a T> for Ref<'a, T, U>

fn from(x: &'a T) -> Self

impl<'a, T: EncodeLike<U>, U: Encode> EncodeLike<U> for Ref<'a, T, U>

impl<'a, T: EncodeLike<U>, U: Encode> EncodeLike<U> for &Ref<'a, T, U>

impl<'a, T: EncodeLike<U>, U: Encode> WrapperTypeEncode for Ref<'a, T, U>

Auto Trait Implementations

impl<'a, T, U> RefUnwindSafe for Ref<'a, T, U> where T: RefUnwindSafe, U: RefUnwindSafe,

impl<'a, T, U> Send for Ref<'a, T, U> where T: Sync, U: Send,

impl<'a, T, U> Sync for Ref<'a, T, U> where T: Sync, U: Sync,

impl<'a, T, U> Unpin for Ref<'a, T, U> where U: Unpin,

impl<'a, T, U> UnwindSafe for Ref<'a, T, U> where T: RefUnwindSafe, U: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

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

type Error = Infallible

pub 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

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

impl<'a, T, U> RefUnwindSafe for Ref<'a, T, U> where
T: RefUnwindSafe,
U: RefUnwindSafe,

impl<'a, T, U> Send for Ref<'a, T, U> where
T: Sync,
U: Send,

impl<'a, T, U> Sync for Ref<'a, T, U> where
T: Sync,
U: Sync,

impl<'a, T, U> Unpin for Ref<'a, T, U> where
U: Unpin,

impl<'a, T, U> UnwindSafe for Ref<'a, T, U> where
T: RefUnwindSafe,
U: UnwindSafe,

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

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

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