Enum DiError 

pub enum DiError {
    NotFound {
        type_name: &'static str,
        type_id: TypeId,
    },
    CircularDependency {
        type_name: &'static str,
    },
    CreationFailed {
        type_name: &'static str,
        reason: String,
    },
    Locked,
    AlreadyRegistered {
        type_name: &'static str,
    },
    ParentDropped,
    Internal(String),
}

Errors that can occur during dependency injection operations

Variants

NotFound

Service was not found in the container

Fields

type_name: &'static str

type_id: TypeId

CircularDependency

Circular dependency detected during resolution

Fields

type_name: &'static str

CreationFailed

Factory failed to create service

Fields

type_name: &'static str

reason: String

Locked

Container is locked and cannot be modified

AlreadyRegistered

Attempted to register duplicate service

Fields

type_name: &'static str

ParentDropped

Parent scope was dropped

Internal(String)

Internal error

Implementations

impl DiError

pub fn not_found<T: 'static>() -> Self

Create a NotFound error for a type

pub fn creation_failed<T: 'static>(reason: impl Into<String>) -> Self

Create a CreationFailed error

pub fn already_registered<T: 'static>() -> Self

Create an AlreadyRegistered error

pub fn circular<T: 'static>() -> Self

Create a CircularDependency error

Trait Implementations

impl Clone for DiError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiError

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

Formats the value using the given formatter.

impl Display for DiError

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

Formats the value using the given formatter.

impl Error for DiError

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.