Enum BasisHolder 

#[non_exhaustive]
pub enum BasisHolder {
    Built,
    Supplied,
    Index,
    OpenedRoot,
}

What fixed the analyzers a read is answered from, which decides the remedy a refusal can offer for analysis the read needs and the basis lacks.

Each route accepts a different remedy. A request that builds its own basis takes another analyzer; a retained index answers only what it was opened with, so the remedy is to open it again; an opened root runs no analyzer at all; and a basis a caller supplied whole is the caller’s to widen. A refusal that named one route’s remedy on another sent the caller looking for a parameter that does not exist.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Built

Request::build: the request enables what its analyzer axis names.

Supplied

Request::new: a basis supplied whole, which nothing holds.

Index

A retained index, which holds the analyzers it was opened with.

OpenedRoot

An opened root, which runs no analyzer.

Trait Implementations

impl Clone for BasisHolder

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 BasisHolder

impl Debug for BasisHolder

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

Formats the value using the given formatter.

impl Eq for BasisHolder

impl PartialEq for BasisHolder

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for BasisHolder