Enum ExecutionGraphError 

pub enum ExecutionGraphError {
    EmptyGraph,
    EmptyGroupId,
    DuplicateGroup(String),
    UnknownOutput(String),
    UnknownDependency {
        group: String,
        dependency: String,
    },
    SelfDependency(String),
    DuplicateDependency {
        group: String,
        dependency: String,
    },
    Cycle,
    Disconnected {
        disconnected: Vec<String>,
    },
}

Invalid execution graph declaration.

Variants

EmptyGraph

No groups were declared.

EmptyGroupId

A group identity is empty.

DuplicateGroup(String)

Two groups share an identity.

UnknownOutput(String)

The declared output is unknown.

UnknownDependency

A dependency is unknown.

Fields

group: String

Dependent group.

dependency: String

Missing dependency.

SelfDependency(String)

A group depends on itself.

DuplicateDependency

A dependency is repeated.

Fields

group: String

Dependent group.

dependency: String

Repeated dependency.

Cycle

The graph contains a dependency cycle.

Disconnected

Some groups do not contribute to the output.

Fields

disconnected: Vec<String>

Disconnected group identities.

Trait Implementations

impl Clone for ExecutionGraphError

fn clone(&self) -> ExecutionGraphError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExecutionGraphError

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

Formats the value using the given formatter.

impl Display for ExecutionGraphError

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

Formats the value using the given formatter.

impl Eq for ExecutionGraphError

impl Error for ExecutionGraphError

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 ExecutionGraphError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ExecutionGraphError