Struct Format

pub struct Format<'a, I> {
    sep: &'a str,
    inner: RefCell<Option<I>>,
}

Format all iterator elements lazily, separated by sep.

The format value can only be formatted once, after that the iterator is exhausted.

See .format() for more information.

Fields

sep: &'a str

inner: RefCell<Option<I>>

Format uses interior mutability because Display::fmt takes &self.

Implementations

impl<'a, I> Format<'a, I>

where I: Iterator,

fn format<F>(&self, f: &mut Formatter<'_>, cb: F) -> Result

where F: FnMut(&I::Item, &mut Formatter<'_>) -> Result,

Trait Implementations

impl<'a, I: Clone> Clone for Format<'a, I>

fn clone(&self) -> Format<'a, I>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, I> Debug for Format<'a, I>

where I: Iterator, I::Item: Debug,

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

Formats the value using the given formatter.