Struct join_lazy_fmt::LazyFormat

pub struct LazyFormat<Closure>(pub Closure)
 where
    Closure: Fn(&mut Formatter) -> Result;

Value returned by lazy_format!: struct implementing fmt::Display, thanks to the inner closure expliciting the formatting logic.

Useful, for instance, for a performant combination with Join::join.

Although you may use it directly (it's just a wrapper around a closure), it may be easier to use in conjunction with the lazy_format! macro.

Trait Implementations

impl<Closure: Copy> Copy for LazyFormat<Closure> where
    Closure: Fn(&mut Formatter) -> Result, 

impl<Closure: Clone> Clone for LazyFormat<Closure> where
    Closure: Fn(&mut Formatter) -> Result, 

fn clone(&self) -> LazyFormat<Closure>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Closure> Display for LazyFormat<Closure> where
    Closure: Fn(&mut Formatter) -> Result, 

fn fmt(&self, other: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<Closure: Debug> Debug for LazyFormat<Closure> where
    Closure: Fn(&mut Formatter) -> Result, 

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

Formats the value using the given formatter.