Struct MissingDep 

pub struct MissingDep {
    pub type_name: &'static str,
}

A dependency that was requested from a Deps container but not present.

#[task]-generated verify_deps returns a Vec<MissingDep>; the workflow! macro converts those into build errors.

Fields

type_name: &'static str

The std::any::type_name of the missing type.

Implementations

impl MissingDep

pub fn of<T>() -> MissingDep

where T: 'static + ?Sized,

Build a MissingDep for type T.

Trait Implementations

impl Clone for MissingDep

fn clone(&self) -> MissingDep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MissingDep

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

Formats the value using the given formatter.

impl Display for MissingDep

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

Formats the value using the given formatter.

impl Eq for MissingDep

impl Error for MissingDep

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 MissingDep

fn eq(&self, other: &MissingDep) -> 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 StructuralPartialEq for MissingDep