Struct Swap 

pub struct Swap<A, B>(pub B, pub A);

Swaps the order of two entities.

Example

let mut token_iter = "foo bar".to_token_iter();

let parsed = <Swap<Ident, Ident>>::parser(&mut token_iter).unwrap();
assert_tokens_eq!(parsed, "bar foo");

Tuple Fields

0: B

1: A

Trait Implementations

impl<A, B> Debug for Swap<A, B>

where A: Debug, B: Debug,

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

Formats the value using the given formatter.

impl<A, B> Parser for Swap<A, B>

where A: Parse, B: Parse,

fn parser(tokens: &mut TokenIter) -> Result<Swap<A, B>, 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<A, B> ToTokens for Swap<A, B>

where A: ToTokens, B: ToTokens,

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.