Enum CnpjError 

#[non_exhaustive]
pub enum CnpjError {
    Empty,
    InvalidLength {
        found: usize,
    },
    InvalidCharacter {
        character: char,
        position: u8,
        expected: CharacterClass,
    },
    InvalidCheckDigits {
        position: u8,
        expected: u8,
        found: u8,
    },
    RepeatedDigits,
}

The error returned when a Cnpj fails to parse or validate.

Each variant corresponds to one validation rule, in the order the rules are applied. See the module level documentation for the full rule list.

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.

Empty

The input was an empty string.

InvalidLength

After stripping punctuation (., /, -, whitespace), the input did not contain exactly 14 meaningful characters.

Fields

found: usize

The number of meaningful (non-punctuation) characters found.

InvalidCharacter

A character outside the allowed set was found at a given position.

Fields

character: char

The offending character, as originally provided (before case folding).

position: u8

1-indexed position within the 14 meaningful characters.

expected: CharacterClass

The character class that was expected at this position.

InvalidCheckDigits

The Módulo 11 checksum did not match one of the two verification digits.

Fields

position: u8

1-indexed position of the mismatching verification digit (13 or 14).

expected: u8

The verification digit computed from the Módulo 11 algorithm.

found: u8

The verification digit actually present in the input.

RepeatedDigits

All 14 characters were identical (e.g. "00000000000000").

Such inputs are structurally well-formed and can even satisfy the Módulo 11 checksum for certain repeated digits, but the Receita Federal never issues them; they are reliably placeholder or data-entry artifacts.

Trait Implementations

impl Clone for CnpjError

fn clone(&self) -> CnpjError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CnpjError

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

Formats the value using the given formatter.

impl Display for CnpjError

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

Formats the value using the given formatter.

impl Eq for CnpjError

impl Error for CnpjError

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 CnpjError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CnpjError