Enum TopicFormatError 

pub enum TopicFormatError {
    HashWildcardNotSupported,
    ParameterCountMismatch {
        expected: usize,
        provided: usize,
    },
    FormatError {
        source: Error,
    },
}

Error types for formatting topics with parameters

Variants

HashWildcardNotSupported

Attempted to format a topic with a hash wildcard (#) which is not allowed

ParameterCountMismatch

Parameter count mismatch when formatting a topic

Fields

expected: usize

Expected number of parameters

provided: usize

Number of parameters actually provided

FormatError

Error during formatting, e.g. invalid parameter type

Fields

source: Error

The underlying formatting error

Trait Implementations

impl Clone for TopicFormatError

fn clone(&self) -> TopicFormatError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TopicFormatError

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

Formats the value using the given formatter.

impl Display for TopicFormatError

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

Formats the value using the given formatter.

impl Eq for TopicFormatError

impl Error for TopicFormatError

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<Error> for TopicFormatError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<TopicFormatError> for TopicError

fn from(source: TopicFormatError) -> Self

Converts to this type from the input type.

impl PartialEq for TopicFormatError

fn eq(&self, other: &TopicFormatError) -> 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 TopicFormatError