Struct SelectedId 

pub struct SelectedId(/* private fields */);

An opaque ordinal into ONE Selection.

The field is private and the constructor is private to this module, so a value of this type can only have come from a Selection’s own accessors. That is what makes pair endpoints structurally non-leaky downstream: there is no way to name a row that was never selected.

An ordinal taken from one selection and applied to another is a programming error, not a data error; the accessors panic with a named message rather than returning a plausible row from the wrong selection.

Implementations

impl SelectedId

pub fn ordinal(self) -> u32

The zero-based position of this row in its selection’s ordered list.

Exposed so pair bytes can be encoded and hashed by ORDINAL rather than by variable-length identifier — the pair manifest already commits the selection’s semantic hash, so the ordinals are unambiguous inside it.

This is an accessor, not a constructor: reading the number cannot mint a SelectedId, so the type remains proof of membership in the selection that produced it.

Trait Implementations

impl Clone for SelectedId

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 SelectedId

impl Debug for SelectedId

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

Formats the value using the given formatter.

impl Eq for SelectedId

impl Hash for SelectedId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SelectedId

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for SelectedId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for SelectedId

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for SelectedId