Struct FixedPointShape 

pub struct FixedPointShape<const INT_BITS: u32, const FRAC_BITS: u32>;

Parametric ConstrainedTypeShape carrying an 8-byte Q-format value.

INT_BITS + FRAC_BITS = 64 is the canonical full-container case; other splits within ≤ 64 are admissible. The shape’s identity flows through (SITE_COUNT, CONSTRAINTS) per ADR-017’s closure rule — distinct (I, F) instantiations content-address identically when their site counts coincide.

Trait Implementations

impl<const INT_BITS: u32, const FRAC_BITS: u32> Clone for FixedPointShape<INT_BITS, FRAC_BITS>

fn clone(&self) -> FixedPointShape<INT_BITS, FRAC_BITS>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<const INT_BITS: u32, const FRAC_BITS: u32> ConstrainedTypeShape for FixedPointShape<INT_BITS, FRAC_BITS>

const IRI: &'static str = "https://uor.foundation/type/ConstrainedType"

IRI of the ontology type:ConstrainedType instance this shape represents.

const SITE_COUNT: usize = WIDTH

Number of sites (fields) this constrained type carries.

const CONSTRAINTS: &'static [ConstraintRef]

Per-site constraint list. Empty means unconstrained.

const CYCLE_SIZE: u64

ADR-032: cardinality of the shape’s value-set (the cycle structure of the shape under the substrate’s discrete-clock model). Used by the prism_model! macro to lower first_admit (closure-body grammar G16) to the correct descent measure. Conventions:

const SITE_BUDGET: usize = Self::SITE_COUNT

Ontology-level siteBudget: count of data sites only, excluding bookkeeping introduced by composition (coproduct tag sites, etc.). Equals SITE_COUNT for leaf shapes and for shapes whose composition introduces no bookkeeping (products, cartesian products). Strictly less than SITE_COUNT for coproduct shapes and any shape whose SITE_COUNT includes inherited bookkeeping. Introduced by the Product/Coproduct Completion Amendment §4a; defaults to SITE_COUNT so pre-amendment shape impls remain valid without edits.

impl<const INT_BITS: u32, const FRAC_BITS: u32> Debug for FixedPointShape<INT_BITS, FRAC_BITS>

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

Formats the value using the given formatter.

impl<const I: u32, const F: u32> Default for FixedPointShape<I, F>

fn default() -> Self

Returns the “default value” for a type.

impl<const INT_BITS: u32, const FRAC_BITS: u32> IntoBindingValue for FixedPointShape<INT_BITS, FRAC_BITS>

const MAX_BYTES: usize = WIDTH

Maximum byte length any value of this shape can produce when serialized via [into_binding_bytes]. Used by run_route to size the on-stack buffer and reject inputs that would overflow.

fn into_binding_bytes(&self, _out: &mut [u8]) -> Result<usize, ShapeViolation>

Serialize this input value into the binding-table form. out is a fixed-capacity buffer the call-site provides; the implementation writes the canonical content-addressable byte sequence and returns the written length.

impl<const INT_BITS: u32, const FRAC_BITS: u32> Copy for FixedPointShape<INT_BITS, FRAC_BITS>

impl<const INT_BITS: u32, const FRAC_BITS: u32> GroundedShape for FixedPointShape<INT_BITS, FRAC_BITS>

impl<const INT_BITS: u32, const FRAC_BITS: u32> Sealed for FixedPointShape<INT_BITS, FRAC_BITS>