Struct FailureReason 

#[non_exhaustive]
pub struct FailureReason {
    pub message: String,
    pub detail: Option<Vec<u8>>,
}

Human-readable failure description + optional structured detail. Replaces today’s ad-hoc string arg to fail.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

message: String

detail: Option<Vec<u8>>

Implementations

impl FailureReason

pub fn new(message: impl Into<String>) -> Self

pub fn with_detail(message: impl Into<String>, detail: Vec<u8>) -> Self

Trait Implementations

impl Clone for FailureReason

fn clone(&self) -> FailureReason

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FailureReason

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

Formats the value using the given formatter.

impl PartialEq for FailureReason

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for FailureReason

impl StructuralPartialEq for FailureReason