Struct CostBreakdown 

pub struct CostBreakdown {

    pub header: u64,
    pub universe: u64,
    pub format: u64,
    pub record_framing: u64,
    pub objects: u64,
    pub external_refs: u64,
    pub graph: u64,
    pub models: u64,
    pub entropy_payload: u64,
    pub residuals: u64,
    pub index: u64,
    pub directory: u64,
    pub integrity: u64,
    pub trailer: u64,
}

Physical byte attribution for a serialized descriptor.

These categories exist so that inspect can answer where the bytes went when a mechanism wins or loses. They sum to the exact .voldoc length.

Fields

header: u64

Fixed header bytes.

universe: u64

Universe declaration record (payload + framing).

format: u64

Format-descriptor record (payload + framing).

record_framing: u64

Record framing overhead (tag/flags/length/crc) for all records.

objects: u64

Object record payloads (raw byte objects).

external_refs: u64

EXTERNAL_REF record payloads (Phase 9): 40 bytes per external object.

The record framing is charged to CostBreakdown::record_framing, as for OBJECT records.

graph: u64

Reconstruction-graph record payload.

models: u64

Entropy model records (0 in the exact core).

entropy_payload: u64

Entropy channel payloads (0 in the exact core).

residuals: u64

Typed residual records (0 in the exact core).

index: u64

Index/checkpoint records.

directory: u64

Optional seek-directory record (payload + framing). Zero when absent.

integrity: u64

Integrity record payload.

trailer: u64

Trailer record payload.

Implementations

impl CostBreakdown

pub fn total(&self) -> u64

Total serialized size in bytes.

pub fn to_json(&self) -> String

Stable-order JSON rendering for inspect and receipts.

Trait Implementations

impl Clone for CostBreakdown

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CostBreakdown

impl Debug for CostBreakdown

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

Formats the value using the given formatter.

impl Default for CostBreakdown

fn default() -> Self

Returns the “default value” for a type.

impl Eq for CostBreakdown

impl PartialEq for CostBreakdown

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CostBreakdown