Enum InjectableError 

pub enum InjectableError {
    CircularDependency {
        type_name: &'static str,
        chain: Vec<&'static str>,
    },
    MissingDependency {
        type_name: &'static str,
    },
    ConstructionFailed {
        type_name: &'static str,
        reason: String,
    },
    LifecycleHookFailed {
        type_name: &'static str,
        hook: &'static str,
        reason: String,
    },
    ShutdownFailed {
        errors: Vec<InjectableError>,
    },
    ContainerNotBuilt,
    GraphValidationFailed {
        errors: Vec<String>,
    },
}

Errors that can occur during dependency resolution.

Variants

CircularDependency

A circular dependency was detected during resolution.

Fields

type_name: &'static str

The type where the cycle was detected.

chain: Vec<&'static str>

The dependency chain leading to the cycle.

MissingDependency

A required dependency was not found in the container.

Fields

type_name: &'static str

The name of the missing dependency type.

ConstructionFailed

Constructor invocation failed.

Fields

type_name: &'static str

The type that failed to construct.

reason: String

A description of the failure.

LifecycleHookFailed

A lifecycle hook (post_construct / pre_destruct) failed.

Fields

type_name: &'static str

The type whose hook failed.

hook: &'static str

Which hook failed.

reason: String

A description of the failure.

ShutdownFailed

One or more pre_destruct hooks failed during container shutdown.

All destructors are still called (best-effort cleanup), but this error collects any failures that occurred. Inspect errors for details on each individual failure.

Fields

errors: Vec<InjectableError>

The individual errors from failed pre_destruct hooks.

ContainerNotBuilt

Container has not been built yet.

GraphValidationFailed

The dependency graph is structurally invalid.

Returned only from Container::builder().build() when circular dependencies, missing dependencies, scope mismatches, or duplicate registrations are detected at build time.

Semantically distinct from ConstructionFailed (which is a runtime provider error): GraphValidationFailed means the type wiring is wrong and must be fixed in code, not retried.

Fields

errors: Vec<String>

Human-readable description of each validation error.

Trait Implementations

impl Clone for InjectableError

fn clone(&self) -> InjectableError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InjectableError

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

Formats the value using the given formatter.

impl Display for InjectableError

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

Formats the value using the given formatter.

impl Error for InjectableError

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.