Enum PlanGraphError 

pub enum PlanGraphError {
    DuplicateNode(PlanNodeId),
    MissingNode(PlanNodeId),
    SelfLoop(PlanNodeId),
    DuplicateEdge {
        from: PlanNodeId,
        to: PlanNodeId,
    },
    NodeAlreadyConnected(PlanNodeId),
    UnknownRoot(PlanNodeId),
    RootHasInputs(PlanNodeId),
    InputsDoNotMatch {
        node: PlanNodeId,
    },
    OutputsDoNotMatch {
        node: PlanNodeId,
    },
    CycleDetected,
    Serde(Error),
}

Errors raised while constructing or validating a plan graph.

Variants

DuplicateNode(PlanNodeId)

MissingNode(PlanNodeId)

SelfLoop(PlanNodeId)

DuplicateEdge

Fields

from: PlanNodeId

to: PlanNodeId

NodeAlreadyConnected(PlanNodeId)

UnknownRoot(PlanNodeId)

RootHasInputs(PlanNodeId)

InputsDoNotMatch

Fields

node: PlanNodeId

OutputsDoNotMatch

Fields

node: PlanNodeId

CycleDetected

Serde(Error)

Trait Implementations

impl Debug for PlanGraphError

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

Formats the value using the given formatter.

impl Display for PlanGraphError

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

Formats the value using the given formatter.

impl Error for PlanGraphError

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 From<Error> for PlanGraphError

fn from(source: Error) -> PlanGraphError

Converts to this type from the input type.