Trait argdata::Map

pub trait Map<'d> {
    fn iter_map_next<'a>(
        &'a self, 
        cookie: &mut usize
    ) -> Option<Result<(ArgdataRef<'a, 'd>, ArgdataRef<'a, 'd>), ReadError>>
    where
        'd: 'a;
}

An argdata value representing a map.

Required Methods

fn iter_map_next<'a>(
    &'a self,
    cookie: &mut usize
) -> Option<Result<(ArgdataRef<'a, 'd>, ArgdataRef<'a, 'd>), ReadError>> where
    'd: 'a, 

Iterate to the next key-value pair, returning None if the end is reached.

You probably want to use iter_map instead, which gives you a normal Iterator.

cookie should be 0 for the first element, and is modified by this method to refer to the next key-value pair on each call. The value of the cookie is implementation-specific. It might for example be the index into a vector, or the byte-offset into an encoded argdata value.

Might panic if you give it an invalid cookie.

Methods

impl<'a, 'd: 'a> Map<'d> + 'a

Important traits for MapIterator<'a, 'd>

impl<'a, 'd: 'a> Iterator for MapIterator<'a, 'd> type Item = Result<(ArgdataRef<'a, 'd>, ArgdataRef<'a, 'd>), ReadError>;

pub fn iter_map(&'a self) -> MapIterator<'a, 'd>

Get an iterator to the key-value pairs of the map.

Implementors

• impl<'d, F: ConvertFd> Map<'d> for EncodedArgdata<'d, F>

• impl<'d, T> Map<'d> for Map<'d, T> where     T: MapContainer,     <T as MapContainer>::Key: Argdata<'d>,     <T as MapContainer>::Value: Argdata<'d>,