Struct AbstractSchema 

pub struct AbstractSchema { /* private fields */ }

A schema with no layout enrichment.

Carrying only vertex kinds, edges, and content-level constraints (literal-value, field:*, and any protocol-defined constraint sorts that are not in the layout fibre). Typical sources:

• SchemaBuilder::build_abstract, which checks the invariant before wrapping.
• DecoratedSchema::forget_layout, which projects a decorated schema to its abstract base.
• AbstractSchema::from_layout_free for callers wrapping a Schema produced by other means (validates on entry).

Implementations

impl AbstractSchema

pub fn from_layout_free( schema: Schema, ) -> Result<Self, LayoutConstraintsPresent>

Construct an AbstractSchema from a Schema that already satisfies the no-layout invariant.

The invariant is checked at runtime in every build (debug and release): a non-layout-free schema is a programming error in the caller, but a load-bearing one — emit and parse use the type-level distinction to dispatch, and a silently-wrong AbstractSchema would corrupt downstream behaviour. Returns Err(LayoutConstraintsPresent { count }) carrying the number of offending constraint entries so callers can diagnose.

Errors

Returns LayoutConstraintsPresent when schema.is_layout_free() returns false. Use Schema::forget_layout first if a decorated schema needs to be downcast.

pub const fn from_layout_free_unchecked(schema: Schema) -> Self

Construct an AbstractSchema from a Schema without checking the layout-free invariant.

Reserved for callers that have just run forget_layout on the input and want to skip the redundant scan. Misuse degrades emit/decorate correctness silently; prefer from_layout_free elsewhere.

pub const fn as_schema(&self) -> &Schema

Borrow the underlying schema for read-only consumption.

This is the audited bridge to the raw Schema type: it is explicit at every call site that we are crossing the typed boundary in the get-only direction. There is no Deref<Target = Schema> because that would silently erase the type-level distinction; every consumer must opt in.

pub fn protocol(&self) -> &str

Returns the schema’s protocol name.

pub fn vertex_count(&self) -> usize

Returns the number of vertices.

Trait Implementations

impl Clone for AbstractSchema

fn clone(&self) -> AbstractSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AbstractSchema

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

Formats the value using the given formatter.