#[must_use = "must eventually call `finish()` on Debug builders"]
pub struct DebugSet<'a, 'b: 'a> { /* fields omitted */ }
A struct to help with fmt::Debug
implementations.
This is useful when you wish to output a formatted set of items as a part
of your Debug::fmt
implementation.
This can be constructed by the
Formatter::debug_set
method.
use std::fmt;
struct Foo(Vec<i32>);
impl fmt::Debug for Foo {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.debug_set().entries(self.0.iter()).finish()
}
}
println!("{:?}", Foo(vec![10, 11]));Run
Adds a new entry to the set output.
Adds the contents of an iterator of entries to the set output.
Finishes output and returns any error encountered.
🔬 This is a nightly-only experimental API. (
try_from
#33417)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (
try_from
#33417)
🔬 This is a nightly-only experimental API. (
try_from
#33417)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (
try_from
#33417)
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
#27745)
this method will likely be replaced by an associated static