Enum GraphError 

pub enum GraphError {
    NodeNotFound(NodeId),
    PortNotFound {
        node: NodeId,
        port: PortId,
    },
    ConnectionExists {
        from_node: NodeId,
        from_port: PortId,
        to_node: NodeId,
        to_port: PortId,
    },
    IncompatibleFormats {
        source_format: String,
        dest_format: String,
    },
    CycleDetected(NodeId),
    ConfigurationError(String),
    ProcessingError {
        node: NodeId,
        message: String,
    },
    EndOfStream,
    WouldBlock,
    InvalidStateTransition {
        node: NodeId,
        from: String,
        to: String,
    },
    EmptyGraph,
    NoSourceNodes,
    NoSinkNodes,
    PortTypeMismatch {
        expected: String,
        actual: String,
    },
}

Errors that can occur in filter graph operations.

Variants

NodeNotFound(NodeId)

Node not found in the graph.

PortNotFound

Port not found on node.

Fields

node: NodeId

The node ID.

port: PortId

The port ID.

ConnectionExists

Connection already exists.

Fields

from_node: NodeId

Source node ID.

from_port: PortId

Source port ID.

to_node: NodeId

Destination node ID.

to_port: PortId

Destination port ID.

IncompatibleFormats

Incompatible port formats.

Fields

source_format: String

Source format description.

dest_format: String

Destination format description.

CycleDetected(NodeId)

Cycle detected in the graph.

ConfigurationError(String)

Graph is not configured properly.

ProcessingError

Node processing error.

Fields

node: NodeId

The node where processing failed.

message: String

Error message.

EndOfStream

End of stream reached.

WouldBlock

No data available (non-blocking).

InvalidStateTransition

Invalid node state transition.

Fields

node: NodeId

The node ID.

from: String

Current state name.

to: String

Attempted state name.

EmptyGraph

Graph is empty.

NoSourceNodes

No source nodes found.

NoSinkNodes

No sink nodes found.

PortTypeMismatch

Port type mismatch.

Fields

expected: String

Expected port type.

actual: String

Actual port type.

Trait Implementations

impl Debug for GraphError

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

Formats the value using the given formatter.

impl Display for GraphError

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

Formats the value using the given formatter.

impl Error for GraphError

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<ParseError> for GraphError

fn from(e: ParseError) -> Self

Converts to this type from the input type.