Struct const_format::fmt::DebugSet
source · pub struct DebugSet<'f, 'w> { /* private fields */ }
Available on crate feature
fmt
only.Expand description
For debug formatting a set.
Example
This example demonstrates how you can debug format a custom type as a set.
#![feature(const_mut_refs)]
use const_format::{Error, Formatter};
use const_format::{formatc, impl_fmt, try_};
use std::ops::Range;
fn main() {
const SET: &str = formatc!("{:?}", StrSet(&["foo", "bar", "baz"]));
assert_eq!(SET, r#"{"foo", "bar", "baz"}"#);
}
struct StrSet(&'static [&'static str]);
impl_fmt!{
impl StrSet;
const fn const_debug_fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error> {
let mut f = f.debug_set();
let mut i = 0;
while i < self.0.len() {
try_!(f.entry().write_str_debug(self.0[i]));
i+=1;
}
f.finish()
}
}
Implementations§
Auto Trait Implementations§
impl<'f, 'w> RefUnwindSafe for DebugSet<'f, 'w>
impl<'f, 'w> Send for DebugSet<'f, 'w>
impl<'f, 'w> Sync for DebugSet<'f, 'w>
impl<'f, 'w> Unpin for DebugSet<'f, 'w>
impl<'f, 'w> !UnwindSafe for DebugSet<'f, 'w>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more