Struct DisplayId 

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

Index into crate::model::ParseTable::display_names; a Tree’s data label (a rule’s origin, or alias when present). Shares no space with RuleId/NontermId — display names are their own dense id space in loader-preserved order.

Implementations

impl DisplayId

pub fn index(self) -> usize

The underlying index as a usize.

impl DisplayId

pub const AMBIG: DisplayId

Earley ambiguity='explicit' tree-data sentinels: _ambig / _iambig / _inter Trees whose data names are not rule origins, so they have no slot in display_names. Interned at the top of the u32 range — every real display id is bounded far below it (the lexer’s position ceiling), so these can never collide with one. Resolve names via crate::model::ParseTable::data_name, never by indexing display_names directly.

pub const IAMBIG: DisplayId

pub const INTER: DisplayId

Trait Implementations

impl Clone for DisplayId

fn clone(&self) -> DisplayId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DisplayId

impl Debug for DisplayId

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

Formats the value using the given formatter.

impl Eq for DisplayId

impl From<DisplayId> for usize

fn from(v: DisplayId) -> usize

Converts to this type from the input type.

impl From<usize> for DisplayId

fn from(v: usize) -> Self

Converts to this type from the input type.

impl Hash for DisplayId

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 DisplayId

fn cmp(&self, other: &DisplayId) -> 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 DisplayId

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for DisplayId

fn partial_cmp(&self, other: &DisplayId) -> 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 DisplayId