Struct Interval 

pub struct Interval {
    pub start: MmrRoot,
    pub end: MmrFrontier,
}

Per stream and block: consumption entered the block at start and left it at end.

The candidate’s lift binds only the last state to a committed root; the intervals extend that guarantee back over the bundle. Each block must start where the previous ended, or prove the jump moved forward (stitch).

• Channels: start is the frontier root before the block’s incoming messages, end the frontier after. start == previous end holds by construction, so the chain check is free.
• Register and event reads: end is the context the reads were verified against, start its root; nothing advances. Contexts can jump between blocks, so a fabricated context breaks the chain instead of hiding behind a later genuine one.

end is a full frontier because the next gap check, or the lift, extends from it.

Fields

start: MmrRoot

Root the block’s consumption on this stream started from.

end: MmrFrontier

Frontier the block’s consumption on this stream ended at.

Trait Implementations

impl Clone for Interval

fn clone(&self) -> Interval

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Interval

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

Formats the value using the given formatter.

impl Decode for Interval

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Encode for Interval

fn size_hint(&self) -> usize

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

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

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

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

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

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl PartialEq for Interval

fn eq(&self, other: &Interval) -> 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 TypeInfo for Interval

type Identity = Interval

The type identifying for which type info is provided.

fn type_info() -> Type

Returns the static type identifier for Self.

impl DecodeWithMemTracking for Interval

impl EncodeLike for Interval

impl Eq for Interval

impl StructuralPartialEq for Interval