Struct Parameters

pub struct Parameters<'a, 'b>(/* private fields */);

Parameter iterator for a command

Implementations

impl<'a, 'b> Parameters<'a, 'b>

pub fn with(toka: &'a mut Peekable<Tokenizer<'b>>) -> Self

Create a argument iterator from a tokenizer

impl<'a, 'b> Parameters<'a, 'b>

pub fn next_optional_token(&mut self) -> Result<Option<Token<'a>>, Error>

Attempts to consume a data token. If no data token is found, None is returned.

pub fn next_token(&mut self) -> Result<Token<'a>, Error>

Get next data token. If no data is found a error with ErrorCode::MissingParameter is returned instead.

pub fn next_data<T>(&mut self) -> Result<T, Error>

where T: TryFrom<Token<'a>, Error = Error>,

Same as Self::next_token but attempts to convert the data token into type T. If no data is found a error with ErrorCode::MissingParameter is returned instead.

If the data conversion fails a corresponding error is returned.

pub fn next_optional_data<T>(&mut self) -> Result<Option<T>, Error>

where T: TryFrom<Token<'a>, Error = Error>,

Same as Self::next_optional_token but attempts to convert the data token into type T. If no data is found, None is returned instead.

If the data conversion fails a corresponding error is returned.