Enum HeadersDirection
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§
Implementations§
§impl HeadersDirection
impl HeadersDirection
pub const fn is_falling(&self) -> bool
pub const fn is_falling(&self) -> bool
Returns true for falling block numbers
pub const fn new(reverse: bool) -> HeadersDirection
pub const fn new(reverse: bool) -> HeadersDirection
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§
§impl<'arbitrary> Arbitrary<'arbitrary> for HeadersDirection
impl<'arbitrary> Arbitrary<'arbitrary> for HeadersDirection
§fn arbitrary(
u: &mut Unstructured<'arbitrary>,
) -> Result<HeadersDirection, Error>
fn arbitrary( u: &mut Unstructured<'arbitrary>, ) -> Result<HeadersDirection, Error>
Self
from the given unstructured data. Read more§fn arbitrary_take_rest(
u: Unstructured<'arbitrary>,
) -> Result<HeadersDirection, Error>
fn arbitrary_take_rest( u: Unstructured<'arbitrary>, ) -> Result<HeadersDirection, Error>
Self
from the entirety of the given
unstructured data. Read more§impl Clone for HeadersDirection
impl Clone for HeadersDirection
§fn clone(&self) -> HeadersDirection
fn clone(&self) -> HeadersDirection
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more§impl Debug for HeadersDirection
impl Debug for HeadersDirection
§impl Decodable for HeadersDirection
impl Decodable for HeadersDirection
§fn decode(buf: &mut &[u8]) -> Result<HeadersDirection, Error>
fn decode(buf: &mut &[u8]) -> Result<HeadersDirection, Error>
buf
must be advanced past
the decoded object.§impl Default for HeadersDirection
impl Default for HeadersDirection
§fn default() -> HeadersDirection
fn default() -> HeadersDirection
§impl<'de> Deserialize<'de> for HeadersDirection
impl<'de> Deserialize<'de> for HeadersDirection
§fn deserialize<__D>(
__deserializer: __D,
) -> Result<HeadersDirection, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(
__deserializer: __D,
) -> Result<HeadersDirection, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
§impl Encodable for HeadersDirection
impl Encodable for HeadersDirection
§impl From<HeadersDirection> for bool
impl From<HeadersDirection> for bool
§fn from(value: HeadersDirection) -> bool
fn from(value: HeadersDirection) -> bool
§impl From<bool> for HeadersDirection
impl From<bool> for HeadersDirection
§fn from(reverse: bool) -> HeadersDirection
fn from(reverse: bool) -> HeadersDirection
§impl Hash for HeadersDirection
impl Hash for HeadersDirection
§impl PartialEq for HeadersDirection
impl PartialEq for HeadersDirection
§impl Serialize for HeadersDirection
impl Serialize for HeadersDirection
§fn serialize<__S>(
&self,
__serializer: __S,
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
fn serialize<__S>(
&self,
__serializer: __S,
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
impl Copy for HeadersDirection
impl Eq for HeadersDirection
impl StructuralPartialEq for HeadersDirection
Auto Trait Implementations§
impl Freeze for HeadersDirection
impl RefUnwindSafe for HeadersDirection
impl Send for HeadersDirection
impl Sync for HeadersDirection
impl Unpin for HeadersDirection
impl UnwindSafe for HeadersDirection
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Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
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Size: 1 byte
Size for each variant:
Falling
: 0 bytesRising
: 0 bytes