Enum ParseRuleIdError 

pub enum ParseRuleIdError {
    MissingNamespace(String),
    TooManySeparators(String),
    InvalidNamespace {
        name: String,
        id: String,
        reason: &'static str,
    },
    EmptyName(String),
    InvalidName {
        name: String,
        id: String,
        reason: &'static str,
    },
}

Why a string is not a valid rule ID.

Each variant carries what was actually seen. A diagnostic that says only “invalid rule ID” makes the reader diff two strings by eye.

Variants

MissingNamespace(String)

No / separating namespace from name.

TooManySeparators(String)

More than one /.

InvalidNamespace

The namespace is not spelled like a namespace.

Fields

name: String

The namespace portion as written.

id: String

The whole ID as written.

reason: &'static str

What specifically is wrong.

EmptyName(String)

Nothing after the separator.

InvalidName

The name violates the naming rules.

Fields

name: String

The name portion as written.

id: String

The whole ID as written.

reason: &'static str

What specifically is wrong.

Trait Implementations

impl Clone for ParseRuleIdError

fn clone(&self) -> ParseRuleIdError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseRuleIdError

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

Formats the value using the given formatter.

impl Display for ParseRuleIdError

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

Formats the value using the given formatter.

impl Eq for ParseRuleIdError

impl Error for ParseRuleIdError

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 ParseRuleIdError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParseRuleIdError