Struct Schema 

pub struct Schema { /* private fields */ }

Schema

Implementations

impl Schema

pub fn schema_fragment_for_canister( &self, canister_path: &str, ) -> Result<SchemaFragment, FragmentLoweringError>

Lower every persisted entity belonging to one canister, plus its exact reachable named-type and relation closure, into one store-free fragment.

Store assignment remains a later proposal-composition concern.

Errors

Returns a typed error when the graph is not sealed, the selected canister/store closure is incomplete, or one authored fact cannot be represented by the bounded public proposal contract.

impl Schema

pub const fn new() -> Self

pub fn insert_node(&mut self, node: SchemaNode)

Register one constructor-produced node while the graph is collecting.

Duplicate and late registration are retained as graph errors rather than replacing an earlier declaration. crate::build::get_schema reports the lexically canonical retained error before exposing a sealed snapshot.

pub const fn is_sealed(&self) -> bool

Return whether whole-graph validation has sealed this graph.

pub const fn digest(&self) -> Option<SchemaGraphDigest>

Return the immutable digest of a sealed graph.

pub fn get_node<'a>(&'a self, path: &str) -> Option<&'a SchemaNode>

pub fn try_get_node<'a>(&'a self, path: &str) -> Result<&'a SchemaNode, Error>

pub fn cast_node<'a, T: 'static>(&'a self, path: &str) -> Result<&'a T, Error>

pub fn get_nodes<T: 'static>(&self) -> impl Iterator<Item = (&str, &T)>

pub fn filter_nodes<'a, T: 'static>( &'a self, predicate: impl Fn(&T) -> bool + 'a, ) -> impl Iterator<Item = (&'a str, &'a T)> + 'a

pub const fn nodes(&self) -> &BTreeMap<String, SchemaNode>

Borrow all schema nodes indexed by path.

pub fn enum_unit_literal( &self, enum_path: &str, variant_name: &str, ) -> Result<ScalarLiteral, SchemaContractError>

Resolve one authored unit-enum literal through current declared names.

Errors

Returns an invalid-enum-literal error when the path is not an enum, the variant is absent, or either maintained name is malformed.

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.

impl Default for Schema

fn default() -> Self

Returns the “default value” for a type.

impl Serialize for Schema

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

where __S: Serializer,

Serialize this value into the given Serde serializer.