Enum BspError 

pub enum BspError {
    NodeExecutionFailed {
        node_id: NodeId,
        node_name: String,
        message: String,
    },
    TypeMismatch {
        node_id: NodeId,
        port_index: PortIndex,
        expected: &'static str,
        found: &'static str,
    },
    CycleDetected {
        node_id: NodeId,
    },
    UnconnectedPort {
        node_id: NodeId,
        port_index: PortIndex,
    },
    NodeNotFound {
        node_id: NodeId,
    },
    Deadlock,
    ValidationError(String),
    LoopBoundExceeded {
        edge: EdgeId,
        from: NodeId,
        to: NodeId,
        max: u64,
    },
    TokenLimitExceeded {
        edge: EdgeId,
        from: NodeId,
        to: NodeId,
        cap: u64,
    },
    MaxExecutionsExceeded {
        node_id: NodeId,
        max: u64,
    },
    DefError(String),
    SuspensionSerde(String),
}

Standardized error types for the BSP graph compiler and execution runtime.

Variants

NodeExecutionFailed

Fields

node_id: NodeId

node_name: String

message: String

TypeMismatch

Fields

node_id: NodeId

port_index: PortIndex

expected: &'static str

found: &'static str

CycleDetected

Fields

node_id: NodeId

UnconnectedPort

Fields

node_id: NodeId

port_index: PortIndex

NodeNotFound

Fields

node_id: NodeId

Deadlock

ValidationError(String)

LoopBoundExceeded

A cycle-closing edge fired more than its configured max_iterations budget.

This is the per-edge circuit breaker for control-flow loops: every edge that closes a cycle should carry a max_iterations cap, and exceeding it aborts the run loudly instead of looping forever.

Fields

edge: EdgeId

from: NodeId

to: NodeId

max: u64

TokenLimitExceeded

A single edge accumulated more pending (unconsumed) activation tokens than allowed.

Guards against unbounded memory growth when a misconfigured loop re-queues tokens faster than the target node consumes them.

Fields

edge: EdgeId

from: NodeId

to: NodeId

cap: u64

MaxExecutionsExceeded

A node was executed more times than its configured max_executions budget.

Useful as a circuit breaker for poll-until style nodes that must not run forever.

Fields

node_id: NodeId

max: u64

DefError(String)

A graph definition (GraphDef) could not be parsed or instantiated.

Unknown node type_names, condition names, and merger names are reported through BspError::ValidationError instead (registry completeness is a validation concern); this variant covers structural definition faults such as an unsupported version.

SuspensionSerde(String)

Serializing or deserializing a super::run::SuspendedExecution snapshot failed.

Trait Implementations

impl Clone for BspError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BspError

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

Formats the value using the given formatter.

impl Display for BspError

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

Formats the value using the given formatter.

impl Error for BspError

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.