Struct DelayedFormat

pub struct DelayedFormat<I> { /* private fields */ }

A temporary object which can be used as an argument to format! or others. This is normally constructed via format methods of each date and time type.

Implementations

impl<'a, I, B> DelayedFormat<I>

where I: Iterator<Item = B> + Clone, B: Borrow<Item<'a>>,

pub fn new( date: Option<NaiveDate>, time: Option<NaiveTime>, items: I, ) -> DelayedFormat<I>

Makes a new DelayedFormat value out of local date and time.

pub fn new_with_offset<Off>( date: Option<NaiveDate>, time: Option<NaiveTime>, offset: &Off, items: I, ) -> DelayedFormat<I>

where Off: Offset + Display,

Makes a new DelayedFormat value out of local date and time and UTC offset.

pub fn write_to(&self, w: &mut impl Write) -> Result<(), Error>

Formats DelayedFormat into a core::fmt::Write instance.

Errors

This function returns a core::fmt::Error if formatting into the core::fmt::Write instance fails.

Example

Writing to a String

let dt = chrono::DateTime::from_timestamp(1643723400, 123456789).unwrap();
let df = dt.format("%Y-%m-%d %H:%M:%S%.9f");
let mut buffer = String::new();
let _ = df.write_to(&mut buffer);

Trait Implementations

impl<I> Debug for DelayedFormat<I>

where I: Debug,

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

Formats the value using the given formatter.

impl<'a, I, B> Display for DelayedFormat<I>

where I: Iterator<Item = B> + Clone, B: Borrow<Item<'a>>,

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

Formats the value using the given formatter.