Struct Mismatch 

pub struct Mismatch {
    pub type_name: &'static str,
    pub expected: &'static str,
    pub found: &'static str,
}

A delta that does not fit the value it was applied to.

Only enums can produce this — a delta built while the value was one variant arriving at a value that is now another — which means the two sides have already diverged. A struct’s apply_delta never fails, and neither does one for an enum whose value is in the expected variant.

Nested deltas propagate the innermost mismatch rather than wrapping it, so the type and variant named here are the ones that actually disagreed, not the outermost thing being applied.

Fields

type_name: &'static str

The enum whose delta did not fit, as written in its definition.

expected: &'static str

The variant the delta was computed for.

found: &'static str

The variant the value was actually in.

Trait Implementations

impl Clone for Mismatch

fn clone(&self) -> Mismatch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Mismatch

impl Debug for Mismatch

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

Formats the value using the given formatter.

impl Display for Mismatch

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

Formats the value using the given formatter.

impl Eq for Mismatch

impl Error for Mismatch

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for Mismatch

fn eq(&self, other: &Mismatch) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Mismatch