[−][src]Struct const_format::fmt::DebugSet
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
impl<'f, 'w> DebugSet<'f, 'w>
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pub const fn entry(&mut self) -> &mut Formatter<'w>
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Adds a set entry to the formatted output
pub const fn finish(self) -> Result<(), Error>
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Finishes writing the set,
and if anything went wrong in the entry
method,returns an error.
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> where
'w: 'f,
'w: 'f,
impl<'f, 'w> !UnwindSafe for DebugSet<'f, 'w>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,