reth_eth_wire_types::header

Enum HeadersDirection

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pub enum HeadersDirection {
    Falling,
    Rising,
}
Expand description

Represents the direction for a headers request depending on the reverse field of the request.

The response must contain a number of block headers, of rising number when reverse is 0, falling when 1

Ref: https://github.com/ethereum/devp2p/blob/master/caps/eth.md#getblockheaders-0x03

HeadersDirection::Rising block numbers for reverse == 0 == false HeadersDirection::Falling block numbers for reverse == 1 == true

See also https://github.com/ethereum/devp2p/blob/master/caps/eth.md#getblockheaders-0x03

Variants§

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Falling

Falling block number.

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Rising

Rising block number.

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impl HeadersDirection

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pub const fn is_rising(&self) -> bool

Returns true for rising block numbers

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pub const fn is_falling(&self) -> bool

Returns true for falling block numbers

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pub const fn new(reverse: bool) -> Self

Converts the bool into a direction.

Returns:

HeadersDirection::Rising block numbers for reverse == 0 == false HeadersDirection::Falling block numbers for reverse == 1 == true

Trait Implementations§

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impl<'arbitrary> Arbitrary<'arbitrary> for HeadersDirection

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

Generate an arbitrary value of Self from the given unstructured data. Read more
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fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Self>

Generate an arbitrary value of Self from the entirety of the given unstructured data. Read more
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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. Read more
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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. Read more
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impl Clone for HeadersDirection

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fn clone(&self) -> HeadersDirection

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for HeadersDirection

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

Formats the value using the given formatter. Read more
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impl Decodable for HeadersDirection

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

Decodes the blob into the appropriate type. buf must be advanced past the decoded object.
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impl Default for HeadersDirection

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fn default() -> HeadersDirection

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for HeadersDirection

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Encodable for HeadersDirection

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

Encodes the type into the out buffer.
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fn length(&self) -> usize

Returns the length of the encoding of this type in bytes. Read more
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impl From<HeadersDirection> for bool

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fn from(value: HeadersDirection) -> Self

Converts to this type from the input type.
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impl From<bool> for HeadersDirection

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fn from(reverse: bool) -> Self

Converts to this type from the input type.
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impl Hash for HeadersDirection

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

Feeds this value into the given Hasher. Read more
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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
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impl PartialEq for HeadersDirection

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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

Serialize this value into the given Serde serializer. Read more
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impl Copy for HeadersDirection

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impl Eq for HeadersDirection

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impl StructuralPartialEq for HeadersDirection

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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: 1 byte

Size for each variant:

  • Falling: 0 bytes
  • Rising: 0 bytes