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Capabilities

Struct Capabilities

pub struct Capabilities { /* private fields */ }

Expand description

Represents all capabilities of a node.

Implementations§

impl Capabilities

pub fn new(value: Vec<Capability>) -> Capabilities

Create a new instance from the given vec.

pub const fn supports_eth_at_least(&self, version: &EthVersion) -> bool

Returns true if this peer advertises an eth protocol version that is >= version.

This is not an exact-match check: a peer advertising only eth/71 will return true for any of Eth66..=Eth71, because eth versions are additive — a newer version implies support for the messages of all earlier versions.

Use this to gate requests on a minimum protocol version (e.g. BAL requires eth/71), not to check whether a peer advertises a specific version verbatim. For exact-version checks use the supports_eth_vXX helpers (e.g. Self::supports_eth_v71).

pub fn capabilities(&self) -> &[Capability]

Returns all capabilities.

pub fn into_inner(self) -> Vec<Capability>

Consumes the type and returns the all capabilities.

pub const fn supports_eth(&self) -> bool

Whether the peer supports eth sub-protocol.

pub const fn supports_eth_v66(&self) -> bool

Whether this peer supports eth v66 protocol.

pub const fn supports_eth_v67(&self) -> bool

Whether this peer supports eth v67 protocol.

pub const fn supports_eth_v68(&self) -> bool

Whether this peer supports eth v68 protocol.

pub const fn supports_eth_v69(&self) -> bool

Whether this peer supports eth v69 protocol.

pub const fn supports_eth_v70(&self) -> bool

Whether this peer supports eth v70 protocol.

pub const fn supports_eth_v71(&self) -> bool

Whether this peer supports eth v71 protocol.

Trait Implementations§

impl Clone for Capabilities

fn clone(&self) -> Capabilities

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Capabilities

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

Formats the value using the given formatter. Read more

impl Decodable for Capabilities

fn decode(buf: &mut &[u8]) -> Result<Capabilities, Error>

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

impl Encodable for Capabilities

fn length(&self) -> usize

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

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

Encodes the type into the out buffer.

impl Eq for Capabilities

impl From<Vec<Capability>> for Capabilities

fn from(value: Vec<Capability>) -> Capabilities

Converts to this type from the input type.

impl PartialEq for Capabilities

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

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more

impl StructuralPartialEq for Capabilities

Auto Trait Implementations§

impl Freeze for Capabilities

impl RefUnwindSafe for Capabilities

impl Send for Capabilities

impl Sync for Capabilities

impl Unpin for Capabilities

impl UnsafeUnpin for Capabilities

impl UnwindSafe for Capabilities

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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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 #126799)

Performs copy-assignment from self to dest. Read more

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

fn __clone_box(&self, _: Private) -> *mut ()

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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

fn type_id(&self) -> TypeId

Returns the lifetime-erased type ID of self.

impl<T> Pointable for T

const ALIGN: usize

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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<T> Same for T

type Output = T

Should always be Self

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 = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, !>

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.

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more

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