Enum NodeDeclError 

pub enum NodeDeclError {
    Metadata(NodeMetadataError),
    MissingExport,
    Runtime,
    ExecutorFull,
    UnknownPublisher,
    ParameterRejected,
    CellRegistryFull,
}

Node declaration error.

Variants

Metadata(NodeMetadataError)

Metadata recorder rejected the declaration.

MissingExport

Host/runtime discovery could not find nros::node! export.

Runtime

Generated runtime rejected the declaration.

ExecutorFull

The executor’s fixed callback-entry table is full — a timer / subscription / service / action could not claim a slot (issue 0095). Carries the capacity cause through the NodeError → NodeDeclError collapse so the register seam can name NROS_EXECUTOR_MAX_CBS.

UnknownPublisher

A publish named an entity this component has no publisher for — the LOOKUP failed, nothing was ever handed to the transport.

issue 0736 — split out of Self::Runtime, which the publish path returned for BOTH “the transport rejected the sample” and “there is no such publisher”: lookup_publisher(...).unwrap_or(Err(Runtime)). Those are different bugs in different layers with different fixes, and from a serial console they were the same line. Exactly the conflation #572 removed one level out, where discarding the result made “the timer never fired” and “every publish failed” the same observation.

ParameterRejected

The parameter store refused a declaration and the name is still absent: the store is full, or it rejected the value. A name already declared is NOT this — the store answers false for that too, but the parameter is there.

Split out of Self::Runtime for the reason Self::UnknownPublisher was (issue 0736): a refused parameter and a rejected transport handle are different faults with different fixes, and one opaque variant made them the same line on a serial console.

CellRegistryFull

A component CELL registry is full – the class creates more entities of one kind (publishers, service servers/clients, action servers/clients) than its registry holds.

issue 1130 – split out of Self::Runtime BEFORE that capacity became derivable. phase-412’s rule: a derived count is safe only where exhaustion NAMES the knob, and a bare “component runtime rejected declaration” named nothing. The capacity is the class’s ENTITY_BOUNDS when it states one, else NROS_RUNTIME_MAX_CELL_ENTITIES.

Implementations

impl NodeDeclError

pub const fn message(self) -> &'static str

Human-readable static message for diagnostics that cross FFI/plugin boundaries.

Trait Implementations

impl Clone for NodeDeclError

fn clone(&self) -> NodeDeclError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NodeDeclError

impl Debug for NodeDeclError

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

Formats the value using the given formatter.

impl Eq for NodeDeclError

impl From<NodeDeclError> for ExecutorError

fn from(e: NodeDeclError) -> Self

Converts to this type from the input type.

impl From<NodeMetadataError> for NodeDeclError

fn from(value: NodeMetadataError) -> Self

Converts to this type from the input type.

impl PartialEq for NodeDeclError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NodeDeclError