Enum NodeError 

#[non_exhaustive]
pub enum NodeError {
    UnknownNode(String),
    UnknownParam {
        node: &'static str,
        param: String,
    },
    TypeMismatch {
        node: &'static str,
        param: &'static str,
        expected: &'static str,
    },
    OutOfRange {
        node: &'static str,
        param: &'static str,
        message: String,
    },
    MissingParam {
        node: &'static str,
        param: &'static str,
    },
    InvalidEnumVariant {
        node: &'static str,
        param: &'static str,
        value: String,
    },
    Other(String),
}

Errors from node creation, parameter access, and registry operations.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

UnknownNode(String)

Unknown node ID.

UnknownParam

Unknown parameter name.

Fields

node: &'static str

param: String

TypeMismatch

Parameter value type mismatch.

Fields

node: &'static str

param: &'static str

expected: &'static str

OutOfRange

Parameter value out of valid range.

Fields

node: &'static str

param: &'static str

message: String

MissingParam

Required parameter missing.

Fields

node: &'static str

param: &'static str

InvalidEnumVariant

Invalid enum variant string.

Fields

node: &'static str

param: &'static str

value: String

Other(String)

Generic error.

Trait Implementations

impl Clone for NodeError

fn clone(&self) -> NodeError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodeError

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

Formats the value using the given formatter.

impl Display for NodeError

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

Formats the value using the given formatter.

impl Error for NodeError

Available on crate feature std only.

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 PartialEq for NodeError

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for NodeError