Enum RuleError 

pub enum RuleError {
    Conflict {
        path: Vec<String>,
        strategies: BTreeSet<Strategy>,
    },
    Unreachable {
        path: Vec<String>,
        blocked_by: Vec<String>,
        blocker: Strategy,
    },
}

Why a rule set was rejected.

Carries key paths and strategy names and nothing else — no flag names. The caller knows what it called its flags.

Variants

Conflict

One path, more than one strategy. The whole set is carried, and reported in Strategy order rather than the order the rules arrived in: a user given only two of three offending flags cannot tell how many to drop.

Fields

path: Vec<String>

strategies: BTreeSet<Strategy>

Unreachable

A rule beneath another rule. Every strategy is terminal, so it could never fire.

Fields

path: Vec<String>

blocked_by: Vec<String>

blocker: Strategy

Implementations

impl RuleError

pub fn path(&self) -> &[String]

The path the rule set was rejected at.

Trait Implementations

impl Clone for RuleError

fn clone(&self) -> RuleError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RuleError

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

Formats the value using the given formatter.

impl Display for RuleError

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

Formats the value using the given formatter.

impl Eq for RuleError

impl Error for RuleError

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 RuleError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RuleError