Struct Capability

pub struct Capability {
    pub name: Cow<'static, str>,
    pub version: usize,
}

A message indicating a supported capability and capability version.

Fields

name: Cow<'static, str>

The name of the subprotocol

version: usize

The version of the subprotocol

Implementations

impl Capability

pub const fn new(name: String, version: usize) -> Self

Create a new Capability with the given name and version.

pub const fn new_static(name: &'static str, version: usize) -> Self

Create a new Capability with the given static name and version.

pub const fn eth(version: EthVersion) -> Self

Returns the corresponding eth capability for the given version.

pub const fn eth_66() -> Self

Returns the EthVersion::Eth66 capability.

pub const fn eth_67() -> Self

Returns the EthVersion::Eth67 capability.

pub const fn eth_68() -> Self

Returns the EthVersion::Eth68 capability.

pub fn is_eth_v66(&self) -> bool

Whether this is eth v66 protocol.

pub fn is_eth_v67(&self) -> bool

Whether this is eth v67.

pub fn is_eth_v68(&self) -> bool

Whether this is eth v68.

pub fn is_eth(&self) -> bool

Whether this is any eth version.

Trait Implementations

impl<'a> Arbitrary<'a> for Capability

Available on crate feature arbitrary only.

fn arbitrary(u: &mut Unstructured<'a>) -> Result<Self>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for Capability

fn clone(&self) -> Capability

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Capability

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

Formats the value using the given formatter.

impl Decodable for Capability

fn decode(b: &mut &[u8]) -> Result<Self>

Decodes the blob into the appropriate type. buf must be advanced past the decoded object.

impl Default for Capability

fn default() -> Capability

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Capability

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Capability

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

Formats the value using the given formatter.

impl Encodable for Capability

fn length(&self) -> usize

Returns the length of the encoding of this type in bytes.

fn encode(&self, out: &mut dyn BufMut)

Encodes the type into the out buffer.

impl From<EthVersion> for Capability

fn from(value: EthVersion) -> Self

Converts to this type from the input type.

impl Hash for Capability

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Capability

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

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

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 Serialize for Capability

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Capability

impl StructuralPartialEq for Capability

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 32 bytes