Struct StageDelta 

pub struct StageDelta {
    pub base_stage_id: String,
    pub chain_length: usize,
    pub common_prefix: usize,
    pub common_suffix: usize,
    pub middle_hex: String,
}

On-disk format of a delta-encoded stage.

File path: <sig>/implementations/<stage_id>.delta.json. The pair (common_prefix, common_suffix) must satisfy prefix + suffix <= base_bytes.len() — they describe a non-overlapping splice into the base.

Fields

base_stage_id: String

stage_id of the previous stage these bytes are diff’d against. Either holds full bytes (.ast.json) or its own delta — reconstruction recurses.

chain_length: usize

Length of the chain ending at this stage. A delta against a full snapshot has chain_length: 1; chained deltas increment from there.

common_prefix: usize

Number of bytes shared at the start with base.

common_suffix: usize

Number of bytes shared at the end with base.

middle_hex: String

Lowercase-hex of the replacement bytes for the middle. Empty hex string means “delete the middle, splice prefix directly to suffix” — happens when the new bytes are a pure deletion against the base.

Trait Implementations

impl Clone for StageDelta

fn clone(&self) -> StageDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StageDelta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StageDelta

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for StageDelta

impl PartialEq for StageDelta

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for StageDelta

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StageDelta