Struct CompactFrameCompression 

pub struct CompactFrameCompression {
    pub level: i32,
    pub window_log: u32,
    pub long_distance_matching: bool,
}

zstd parameters for one compact metadata frame.

Decoding never consults these: a frame carries its own zstd framing, so a store written at any level stays readable. Only the encoder’s CPU/bytes trade-off moves. The 2^27-byte long-distance window matches the #1325 falsifier at every level.

Fields

level: i32

window_log: u32

long_distance_matching: bool

Implementations

impl CompactFrameCompression

pub const DEFAULT: Self

Local repack policy: retain the pre-adoption level 19 encoder.

pub const ADOPTION: Self

Fast zstd for adoption/import packs only (owner decision 2026-10-07). Weft adoption_pack must pass this to compress_compact_frame_with.

Trait Implementations

impl Clone for CompactFrameCompression

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 CompactFrameCompression

impl Debug for CompactFrameCompression

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

Formats the value using the given formatter.

impl Default for CompactFrameCompression

fn default() -> Self

Returns the “default value” for a type.