pub trait DebugWithContext<C>: Eq + Debug {
// Provided methods
fn fmt_with(&self, _ctxt: &C, f: &mut Formatter<'_>) -> Result { ... }
fn fmt_diff_with(
&self,
old: &Self,
ctxt: &C,
f: &mut Formatter<'_>,
) -> Result { ... }
}Expand description
An extension to fmt::Debug for data that can be better printed with some auxiliary data C.
Provided Methods§
fn fmt_with(&self, _ctxt: &C, f: &mut Formatter<'_>) -> Result
Sourcefn fmt_diff_with(&self, old: &Self, ctxt: &C, f: &mut Formatter<'_>) -> Result
fn fmt_diff_with(&self, old: &Self, ctxt: &C, f: &mut Formatter<'_>) -> Result
Print the difference between self and old.
This should print nothing if self == old.
+ and - are typically used to indicate differences. However, these characters are
fairly common and may be needed to print a types representation. If using them to indicate
a diff, prefix them with the “Unit Separator” control character (␟ U+001F).
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.