Struct Enable 

pub struct Enable;

Always succeeds without consuming tokens.

Examples

use unsynn::*;

let mut tokens = "foo bar".to_token_iter();
let result = Enable::parse(&mut tokens);
assert!(result.is_ok());
assert_eq!(tokens.clone().count(), 2); // No tokens consumed

Trait Implementations

impl Clone for Enable

fn clone(&self) -> Enable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Enable

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

Formats the value using the given formatter.

impl Default for Enable

fn default() -> Enable

Returns the “default value” for a type.

impl Parser for Enable

fn parser(_tokens: &mut TokenIter) -> Result<Enable, Error>

The actual parsing function that must be implemented. This mutates the tokens iterator directly. It should not be called from user code except for implementing parsers itself and then only when the rules below are followed.

impl ToTokens for Enable

fn to_tokens(&self, _tokens: &mut TokenStream)

Write &self to the given TokenStream.

fn to_token_iter(&self) -> TokenIter

Convert &self into a TokenIter object.

fn into_token_iter(self) -> TokenIter

where Self: Sized,

Convert self into a TokenIter object.

fn to_token_stream(&self) -> TokenStream

Convert &self into a TokenStream object.

fn into_token_stream(self) -> TokenStream

where Self: Sized,

Convert self into a TokenStream object.

fn tokens_to_string(&self) -> String

Convert &self into a String object. This is mostly used in the test suite to compare the outputs. When the input is a &str then this parses it and returns a normalized String.

impl PredicateOp for Enable