Enum Literal

pub enum Literal {
    Integer(LitInt),
    Float(LitFloat),
    Radix(LitRadix),
    Boolean(LitBool),
    Symbol(LitSym),
    Unit(LitUnit),
    List(LitList),
    ListRepeat(LitListRepeat),
}

Represents a literal value in CalcScript.

A literal is any value that can is written directly into the source code. For example, the number 1 is a literal (it is currently the only literal type supported by CalcScript).

Variants

Integer(LitInt)

An integer literal.

Float(LitFloat)

A floating-point literal.

Radix(LitRadix)

A number written in radix notation. Radix notation allows users to express integers in a base other than base 10.

Boolean(LitBool)

A boolean literal, either true or false.

Symbol(LitSym)

A symbol / identifier literal. Symbols are used to represent variables and functions.

Unit(LitUnit)

The unit type, written as (). The unit type is by-default returned by functions that do not return a value.

List(LitList)

The list type, consisting of a list of expressions surrounded by square brackets and delimited by commas: [expr1, expr2, ...].

ListRepeat(LitListRepeat)

The list type, formed by repeating the given expression n times: [expr; n].

Implementations

impl Literal

pub fn span(&self) -> Range<usize>

Returns the span of the literal.

Trait Implementations

impl Clone for Literal

fn clone(&self) -> Literal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Literal

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

Formats the value using the given formatter.

impl Display for Literal

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

Formats the value using the given formatter.

impl Latex for Literal

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

Format the value as LaTeX.

fn as_display(&self) -> LatexFormatter<'_, Self>

Wraps the value in a LatexFormatter, which implements Display.

impl<'source> Parse<'source> for Literal

fn std_parse( input: &mut Parser<'source>, recoverable_errors: &mut Vec<Error>, ) -> Result<Self, Vec<Error>>

Parses a value from the given stream of tokens, advancing the stream past the consumed tokens if parsing is successful.

fn parse(input: &mut Parser<'source>) -> ParseResult<Self>

Parses a value from the given stream of tokens, advancing the stream past the consumed tokens if parsing is successful.

impl PartialEq for Literal

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

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

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 Eq for Literal

impl StructuralPartialEq for Literal