Enum TokenType 

pub enum TokenType {
    Error,
    Eof,
    Identifier,
    Keyword,
    String,
    Integer,
    Float,
    Operator,
    Punctuator,
    Comment,
    Parameter,
}

TokenType represents the type of a token

Variants

Error

Error token

Eof

End of file

Identifier

Identifier (table name, column name, etc.)

Keyword

SQL keyword (SELECT, FROM, WHERE, etc.)

String

String literal (‘hello’)

Integer

Integer number (123)

Float

Floating point number (123.45)

Operator

Operator (=, <, >, +, -, etc.)

Punctuator

Punctuator (comma, semicolon, parentheses, etc.)

Comment

Comment (– or /* */)

Parameter

Parameter ($1, ?)

Trait Implementations

impl Clone for TokenType

fn clone(&self) -> TokenType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TokenType

impl Debug for TokenType

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

Formats the value using the given formatter.

impl Display for TokenType

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

Formats the value using the given formatter.

impl Eq for TokenType

impl Hash for TokenType

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 PartialEq for TokenType

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TokenType