Enum Sym 

pub enum Sym<'a> {
    Id(&'a str),
    String(&'a str),
    Number(f64),
    Keyword(&'a str),
    Operator(Operator),
    Symbol(Symbol),
    Eof,
}

Symbol type representing the category and value of a token.

This enum encompasses all the different types of tokens that can appear in an EventQL query, from keywords and operators to literals and symbols.

Variants

Id(&'a str)

Identifier (variable names, keywords not yet classified)

String(&'a str)

String literal

Number(f64)

Numeric literal

Keyword(&'a str)

Keyword (FROM, WHERE, etc.)

Operator(Operator)

Operator (+, -, ==, AND, etc.)

Symbol(Symbol)

Structural symbol (parentheses, brackets, etc.)

Eof

End of file marker

Trait Implementations

impl<'a> Clone for Sym<'a>

fn clone(&self) -> Sym<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Sym<'a>

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

Formats the value using the given formatter.

impl Display for Sym<'_>

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

Formats the value using the given formatter.

impl<'a> Serialize for Sym<'a>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<'a> Copy for Sym<'a>