Enum EventNameError 

pub enum EventNameError {
    Empty,
    LineTerminator,
}

Why a string is not usable as an event: name.

Variants

Empty

The value was empty.

event: with nothing after it is a field with an empty value, which the grammar allows and which means the default event name rather than the empty one. Accepting it would make Some("") and None two spellings of one thing, and a client dispatching on the name would have to treat them differently for no reason.

LineTerminator

The value contained a line terminator.

The load-bearing refusal. See the module docs: this is what would turn a name into a second field.

Trait Implementations

impl Clone for EventNameError

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 EventNameError

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

Formats the value using the given formatter.

impl Display for EventNameError

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

Formats the value using the given formatter.

impl Eq for EventNameError

impl Error for EventNameError

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 EventNameError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EventNameError