Enum Keyword 

#[non_exhaustive]
pub enum Keyword {
    Acyclic,
    All,
    AllShortestPaths,
    And,
    Any,
    As,
    Asc,
    Ascending,
    By,
    Call,
    Case,
    Collect,
    Contains,
    Count,
    Create,
    Delete,
    Desc,
    Descending,
    Detach,
    Distinct,
    Else,
    End,
    Ends,
    Exists,
    False,
    Group,
    Groups,
    In,
    Inf,
    Infinity,
    Is,
    Limit,
    Match,
    Merge,
    Nan,
    None,
    Not,
    Null,
    Offset,
    On,
    Optional,
    Or,
    Order,
    Path,
    Paths,
    Reduce,
    Remove,
    Return,
    Set,
    Shortest,
    ShortestPath,
    Simple,
    Single,
    Skip,
    Starts,
    Then,
    Trail,
    Trim,
    True,
    Union,
    Unwind,
    Walk,
    When,
    Where,
    With,
    Xor,
    Yield,
}

A word recognized specially by this crate’s lexer.

This contains the openCypher 2024.3 keyword spellings plus the documented path-mode and subquery-expression extensions consumed by the grammar. The parser decides whether a keyword can act as a symbolic name at a particular location.

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.

Acyclic

All

AllShortestPaths

And

Any

As

Asc

Ascending

By

Call

Case

Collect

Contains

Count

Create

Delete

Desc

Descending

Detach

Distinct

Else

End

Ends

Exists

False

Group

Groups

In

Inf

Infinity

Is

Limit

Match

Merge

Nan

None

Not

Null

Offset

On

Optional

Or

Order

Path

Paths

Reduce

Remove

Return

Set

Shortest

ShortestPath

Simple

Single

Skip

Starts

Then

Trail

Trim

True

Union

Unwind

Walk

When

Where

With

Xor

Yield

Implementations

impl Keyword

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

Returns the canonical uppercase spelling.

pub fn from_ascii_case_insensitive(text: &str) -> Option<Self>

Recognizes an ASCII keyword without regard to case.

Non-ASCII input is never a keyword.

Trait Implementations

impl Clone for Keyword

fn clone(&self) -> Keyword

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Keyword

impl Debug for Keyword

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

Formats the value using the given formatter.

impl Display for Keyword

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

Formats the value using the given formatter.

impl Eq for Keyword

impl Hash for Keyword

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 Keyword

fn cmp(&self, other: &Keyword) -> 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.

impl PartialEq for Keyword

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Keyword

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