Struct Schema 

pub struct Schema { /* private fields */ }

A validated schema: canonical type table, cached canonical bytes, content id, and precomputed struct layouts.

Implementations

impl Schema

pub fn id(&self) -> u128

128-bit content hash of the canonical schema bytes (truncated SHA-256, see crate::hash). Acts as a content-address / cache key; wide enough (~2^64 birthday resistance) to resist schema-confusion.

pub fn canonical_bytes(&self) -> &[u8]

pub fn root_index(&self) -> u16

pub fn type_count(&self) -> u16

pub fn type_def(&self, index: u16) -> Option<&TypeDef>

pub fn type_name(&self, index: u16) -> &str

pub fn find_field( &self, struct_index: u16, id: u16, ) -> Option<(usize, &FieldDef)>

Position (in ID-sorted order) and definition of a field, by ID.

pub fn from_canonical(bytes: &[u8]) -> Result<Schema>

Decode a schema from its canonical bytes (e.g. the inline schema region of a message). Rejects malformed and non-canonical encodings.

Trait Implementations

impl Clone for Schema

fn clone(&self) -> Schema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Schema

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

Formats the value using the given formatter.