Enum MagicRuleValidationError 

#[non_exhaustive]
pub enum MagicRuleValidationError {
    EmptyMessage,
    InvalidChildLevel {
        child_index: usize,
        child_level: u32,
        parent_level: u32,
    },
    LevelTooDeep {
        level: u32,
        max: u32,
    },
}

Validation errors returned by MagicRule::validate.

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.

EmptyMessage

Rule message is empty. Messages are user-facing and required for meaningful output.

InvalidChildLevel

The child rule at child_index has level <= self.level, violating the “children must nest deeper than the parent” invariant of the hierarchical indentation-based DSL.

Fields

child_index: usize

Index of the offending child in self.children.

child_level: u32

Level of the child rule.

parent_level: u32

Level of the parent rule.

LevelTooDeep

Rule level exceeds the maximum supported depth. The limit is a hardening mechanism against stack overflow during deep recursion; libmagic files in the wild rarely go beyond 10 levels.

Fields

level: u32

The invalid level value.

max: u32

The maximum allowed depth.

Trait Implementations

impl Debug for MagicRuleValidationError

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

Formats the value using the given formatter.

impl Display for MagicRuleValidationError

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

Formats the value using the given formatter.

impl Error for MagicRuleValidationError

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 MagicRuleValidationError

fn eq(&self, other: &MagicRuleValidationError) -> 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 Eq for MagicRuleValidationError

impl StructuralPartialEq for MagicRuleValidationError