Trait parity_scale_codec::Encode[−][src]

[+] Show declaration

pub trait Encode {
    fn size_hint(&self) -> usize { ... }
    fn encode_to<T: Output + ?Sized>(&self, dest: &mut T) { ... }
    fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>
impl<A> Write for Vec<u8, A> where
    A: Allocator,  { ... }
    fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R { ... }
    fn encoded_size(&self) -> usize { ... }
}

[−]

Trait that allows zero-copy write of value-references to slices in LE format.

Implementations should override using_encoded for value types and encode_to and size_hint for allocating types. Wrapper types should override all methods.

Provided methods

`fn size_hint(&self) -> usize`[src][−]

If possible give a hint of expected size of the encoding.

This method is used inside default implementation of encode to avoid re-allocations.

`fn encode_to<T: Output + ?Sized>(&self, dest: &mut T)`[src][−]

Convert self to a slice and append it to the destination.

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src][−]

Convert self to an owned vector.

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src][−]

Convert self to a slice and then invoke the given closure with it.

`fn encoded_size(&self) -> usize`[src][−]

Calculates the encoded size.

Should be used when the encoded data isn’t required.

Note

This works by using a special Output that only tracks the size. So, there are no allocations inside the output. However, this can not prevent allocations that some types are doing inside their own encoding.

Trait parity_scale_codec::Encode[−][src]

Notable traits for Vec<u8, A>

Provided methods

fn size_hint(&self) -> usize[src][−]

fn encode_to<T: Output + ?Sized>(&self, dest: &mut T)[src][−]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src][−]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src][−]

fn encoded_size(&self) -> usize[src][−]

Note

Implementations on Foreign Types

impl<T: Encode, E: Encode> Encode for Result<T, E>[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

impl<T: Encode> Encode for Option<T>[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

impl Encode for NonZeroI8[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroI16[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroI32[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroI64[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroI128[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroU8[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroU16[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroU32[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroU64[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl Encode for NonZeroU128[src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator, [src]

Notable traits for Vec<u8, A>

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R[src]

impl<T: Encode> Encode for [T; 0][src][−]

fn size_hint(&self) -> usize[src]

fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)[src]

`fn size_hint(&self) -> usize`[src][−]

`fn encode_to<T: Output + ?Sized>(&self, dest: &mut T)`[src][−]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src][−]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src][−]

`fn encoded_size(&self) -> usize`[src][−]

`impl<T: Encode, E: Encode> Encode for Result<T, E>`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl<T: Encode> Encode for Option<T>`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl Encode for NonZeroI8`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroI16`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroI32`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroI64`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroI128`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroU8`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroU16`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroU32`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroU64`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl Encode for NonZeroU128`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A> impl<A> Write for Vec<u8, A> where A: Allocator,` [src]

`fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R`[src]

`impl<T: Encode> Encode for [T; 0]`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl<T: Encode> Encode for [T; 1]`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl<T: Encode> Encode for [T; 2]`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl<T: Encode> Encode for [T; 3]`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl<T: Encode> Encode for [T; 4]`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl<T: Encode> Encode for [T; 5]`[src][−]

`fn size_hint(&self) -> usize`[src]

`fn encode_to<W: Output + ?Sized>(&self, dest: &mut W)`[src]

`impl<T: Encode> Encode for [T; 6]`[src][−]