Struct erl_tokenize::tokens::IntegerToken

pub struct IntegerToken { /* fields omitted */ }

Integer token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::IntegerToken;
use num::traits::ToPrimitive;

let pos = Position::new();

// Ok
assert_eq!(IntegerToken::from_text("10", pos.clone()).unwrap().value().to_u32(),
           Some(10u32));
assert_eq!(IntegerToken::from_text("16#ab0e", pos.clone()).unwrap().value().to_u32(),
           Some(0xab0e));

// Err
assert!(IntegerToken::from_text("-10", pos.clone()).is_err());

Methods

impl IntegerToken

pub fn from_value(value: BigUint, pos: Position) -> Self

Makes a new IntegerToken instance from the value.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::IntegerToken;

let pos = Position::new();
assert_eq!(IntegerToken::from_value(123u32.into(), pos.clone()).text(), "123");

pub fn from_text(text: &str, pos: Position) -> Result<Self>

Tries to convert from any prefixes of the text to an IntegerToken.

pub fn value(&self) -> &BigUint

Returns the value of this token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::IntegerToken;
use num::traits::ToPrimitive;

let pos = Position::new();

assert_eq!(IntegerToken::from_text("10", pos.clone()).unwrap().value().to_u32(),
           Some(10u32));
assert_eq!(IntegerToken::from_text("16#ab0e", pos.clone()).unwrap().value().to_u32(),
           Some(0xab0e));

pub fn text(&self) -> &str

Returns the original textual representation of this token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::IntegerToken;

let pos = Position::new();

assert_eq!(IntegerToken::from_text("10", pos.clone()).unwrap().text(), "10");
assert_eq!(IntegerToken::from_text("16#ab0e", pos.clone()).unwrap().text(), "16#ab0e");

Trait Implementations

impl PositionRange for IntegerToken

fn start_position(&self) -> Position

Returns the (inclusive) start position of this.

fn end_position(&self) -> Position

Returns the (exclusive) end position of this.

impl From<IntegerToken> for LexicalToken

fn from(f: IntegerToken) -> Self

Performs the conversion.

impl From<IntegerToken> for Token

fn from(f: IntegerToken) -> Self

Performs the conversion.

impl Clone for IntegerToken

fn clone(&self) -> IntegerToken

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for IntegerToken

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

Formats the value using the given formatter.

impl Display for IntegerToken

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

Formats the value using the given formatter.