Token

Enum Token

pub enum Token {
Show 23 variants    LeftParen,
    RightParen,
    LeftBracket,
    RightBracket,
    Plus,
    Minus,
    Star,
    Slash,
    Comma,
    Greater,
    GreaterEqual,
    Less,
    LessEqual,
    Equal,
    NotEqual,
    And,
    Or,
    Xor,
    Not,
    Div,
    Mod,
    Literal(Value),
    Identifier(String),
}

Expand description

A Token is the smallest logical unit evaluated by the compiler.

Variants§

LeftParen

RightParen

LeftBracket

RightBracket

Plus

Minus

Star

Slash

Comma

Greater

GreaterEqual

Less

LessEqual

Equal

NotEqual

And

Or

Xor

Not

Div

Mod

Literal(Value)

Identifier(String)

Trait Implementations§

impl Clone for Token

fn clone(&self) -> Token

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Token

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

Formats the value using the given formatter. Read more

impl PartialEq for Token

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Token

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

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

1.0.0 · Source§

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

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

1.0.0 · Source§

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

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

1.0.0 · Source§

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

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

1.0.0 · Source§

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

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

impl TryFrom<&Token> for Operator

Convert a Token into an Operator.

§Errors

Returns Error::TokenNotAnOperator if an invalid Token is encountered.

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: &Token) -> Result<Self, Self::Error>

Performs the conversion.

impl StructuralPartialEq for Token

Auto Trait Implementations§

impl Freeze for Token

impl RefUnwindSafe for Token

impl Send for Token

impl Sync for Token

impl Unpin for Token

impl UnwindSafe for Token

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.