Struct erl_tokenize::tokens::VariableToken

pub struct VariableToken { /* fields omitted */ }

Variable token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::VariableToken;

let pos = Position::new();

// Ok
assert_eq!(VariableToken::from_text("Foo", pos.clone()).unwrap().value(), "Foo");
assert_eq!(VariableToken::from_text("_  ", pos.clone()).unwrap().value(), "_");
assert_eq!(VariableToken::from_text("_foo@bar", pos.clone()).unwrap().value(), "_foo@bar");

// Err
assert!(VariableToken::from_text("foo", pos.clone()).is_err());
assert!(VariableToken::from_text("  Foo", pos.clone()).is_err());

Methods

impl VariableToken

fn from_value(value: &str, pos: Position) -> Result<Self>

Makes a new VariableToken instance from the value.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::VariableToken;

let pos = Position::new();
assert_eq!(VariableToken::from_value("Foo", pos.clone()).unwrap().text(), "Foo");

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

Tries to convert from any prefixes of the text to a VariableToken.

fn value(&self) -> &str

Returns the value of this token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::VariableToken;

let pos = Position::new();

assert_eq!(VariableToken::from_text("Foo", pos.clone()).unwrap().value(), "Foo");
assert_eq!(VariableToken::from_text("_foo  ", pos.clone()).unwrap().value(), "_foo");

fn text(&self) -> &str

Returns the original textual representation of this token.

Examples

use erl_tokenize::Position;
use erl_tokenize::tokens::VariableToken;

let pos = Position::new();

assert_eq!(VariableToken::from_text("Foo", pos.clone()).unwrap().text(), "Foo");
assert_eq!(VariableToken::from_text("_foo  ", pos.clone()).unwrap().text(), "_foo");

Trait Implementations

impl Debug for VariableToken

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for VariableToken

fn clone(&self) -> VariableToken

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PositionRange for VariableToken

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 Display for VariableToken

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

Formats the value using the given formatter.