Enum SetParameterResult 

pub enum SetParameterResult {
    Success,
    ReadOnly,
    TypeMismatch,
    OutOfRange,
    NotFound,
    StorageFull,
    Undeclared,
    InvalidRange,
    Rejected,
}

Result of setting a parameter

Variants

Success

Parameter was set successfully

ReadOnly

Parameter is read-only

TypeMismatch

Parameter type mismatch (and dynamic typing disabled)

OutOfRange

Value is outside allowed range

NotFound

Parameter not found

StorageFull

Storage is full

Undeclared

A set on a name that was never declared, and the server does not allow undeclared parameters (issue 1151; rclrs parameter.rs).

Distinct from NotFound: that is what a DIRECT ParameterServer::set says about a missing name; this is what the wire-facing ParameterServer::apply says when the only remaining option — declaring it — is switched off.

InvalidRange

A declaration whose range is ill-formed (min > max or step < 0), or whose default does not satisfy its own range (issue 1150; rclrs DeclarationError::InvalidRange / InitialValueOutOfRange).

Rejected

A registered on-set-parameters callback refused the write — rclcpp’s SetParametersResult { successful: false } from add_on_set_parameters_callback (phase-417 W4.a).

Distinct from every verdict above it: those are the STORE’s rules, and a caller can predict them from the descriptor. This one is the APPLICATION’s rule, and only the application knows why.

Implementations

impl SetParameterResult

pub fn is_success(&self) -> bool

Check if the result indicates success

Trait Implementations

impl Clone for SetParameterResult

fn clone(&self) -> SetParameterResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SetParameterResult

impl Debug for SetParameterResult

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

Formats the value using the given formatter.

impl Eq for SetParameterResult

impl From<SetParameterResult> for ParameterError

fn from(result: SetParameterResult) -> Self

Converts to this type from the input type.

impl PartialEq for SetParameterResult

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SetParameterResult