Enum Basis 

pub enum Basis {
    Authored,
    DirectlyObserved,
    DeterministicallyDerived,
    Inferred,
    Heuristic,
    Unresolved,
}

The epistemic basis of an answer.

is_exact is true only for answers that are byte-identical observations of the source. A deterministically-derived projection (e.g. inflated stream bytes) is reproducible but is not an exact source span, so it is not exact.

Variants

Authored

The value was authored as a literal (never produced by this module yet; reserved for Literal seed nodes).

DirectlyObserved

The exact source bytes were observed directly.

DeterministicallyDerived

A deterministic projection of retained state (inflated bytes, structure).

Inferred

Inferred from partial evidence; never exact.

Heuristic

A best-effort heuristic projection (e.g. text runs); never exact.

Unresolved

Could not be resolved.

Implementations

impl Basis

pub const fn name(self) -> &'static str

Stable lower-case name (used in JSON and receipts).

pub const fn is_exact(self) -> bool

Whether an answer with this basis is an exact observation of the source.

Trait Implementations

impl Clone for Basis

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Basis

impl Debug for Basis

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

Formats the value using the given formatter.

impl Eq for Basis

impl PartialEq for Basis

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Basis