Struct CallbackError 

pub struct CallbackError { /* private fields */ }

Common error information for prepare lifecycle callbacks.

This keeps a semantic callback type label together with the message so callers can classify failures without depending on fragile string matching.

Examples

use qubit_dcl::double_checked::CallbackError;

let prepare_error = CallbackError::with_callback_type("prepare", "Resource is locked");
assert_eq!(prepare_error.callback_type(), Some("prepare"));
println!("prepare_error = {:?}", prepare_error);

Implementations

impl CallbackError

pub fn from_display<T: Display>(error: T) -> Self

Builds a callback error without type metadata.

Type Parameters

• T - Displayable error or message value to store.

Parameters

• error - Error value whose display text becomes this callback error’s message.

Returns

A callback error with no callback type label.

pub fn with_callback_type<T: Display>( callback_type: &'static str, error: T, ) -> Self

Builds a callback error with explicit callback type metadata.

Parameters

• callback_type - Semantic callback type label, such as "prepare" or "prepare_rollback".
• error - Error message or displayable error value produced by the callback.

Returns

A callback error with callback_type stored as metadata.

pub fn message(&self) -> &str

Returns the raw message.

Returns

The message captured from the original displayable error value.

pub fn callback_type(&self) -> Option<&'static str>

Returns the callback type label, when available.

Returns

Some(label) when this error was built with callback type metadata, or None when no metadata is available.

pub fn is_typed(&self) -> bool

Returns whether the callback type label is set.

Returns

true when Self::callback_type would return Some.

Trait Implementations

impl Clone for CallbackError

fn clone(&self) -> CallbackError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CallbackError

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

Formats the value using the given formatter.

impl Display for CallbackError

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

Formats this callback error for user-facing diagnostics.

Parameters

• f - Formatter receiving the formatted callback error.

Returns

fmt::Result from writing the callback label and message.