Struct EmptySchema 

pub struct EmptySchema;

A SchemaProvider that reports nothing. Useful for schema-free mode and for unit tests that do not want to construct a full schema.

Trait Implementations

impl Debug for EmptySchema

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

Formats the value using the given formatter.

impl Default for EmptySchema

fn default() -> EmptySchema

Returns the “default value” for a type.

impl SchemaProvider for EmptySchema

fn labels(&self) -> Vec<SmolStr>

All declared labels. Order is not semantic; callers sort if they need deterministic output.

fn relationship_types(&self) -> Vec<SmolStr>

All declared relationship types.

fn node_properties(&self, _: &str) -> Option<Vec<PropertyDecl>>

Properties declared on a node with this label.

fn relationship_properties(&self, _: &str) -> Option<Vec<PropertyDecl>>

Properties declared on a relationship of this type.

fn relationship_endpoints(&self, _: &str) -> Vec<EndpointDecl>

Declared endpoint pairs for a relationship type. Empty = endpoint- polymorphic; the semantic pass then skips endpoint checks.

fn inverse_of(&self, _: &str) -> Option<SmolStr>

Declared inverse relationship type, if any. Consumers that model typed inverses return them here; others return None.

fn function(&self, _: &str) -> Option<FunctionSignature>

Look up a function signature. Used by typecheck and by completion.

fn procedure(&self, _: &str) -> Option<ProcedureSignature>

Look up a procedure signature for CALL <proc>.

fn schema_digest(&self) -> [u8; 32]

A content-addressed digest of the schema’s observable surface. MUST change whenever any declaration visible through this trait changes.

fn has_label(&self, name: &str) -> bool

Convenience predicate: does the schema declare name as a label?

fn has_relationship_type(&self, name: &str) -> bool

Convenience predicate: does the schema declare name as a relationship type?