Struct CreditCardValidator 

pub struct CreditCardValidator { /* private fields */ }

Available on crate feature core and non-WebAssembly only.

Credit card number validator

This validator checks credit card numbers using the Luhn algorithm and can optionally restrict accepted card types.

Examples

use reinhardt_core::validators::{CreditCardValidator, CardType};

// Accept any valid card
let validator = CreditCardValidator::new();
assert!(validator.validate("4532015112830366").is_ok()); // Valid Visa

// Restrict to specific card types
let validator = CreditCardValidator::new()
    .allow_types(vec![CardType::Visa, CardType::MasterCard]);
assert!(validator.validate("4532015112830366").is_ok()); // Visa allowed

Implementations

impl CreditCardValidator

pub fn new() -> CreditCardValidator

Available on crate feature validators only.

Creates a new credit card validator that accepts any valid card type

Examples

use reinhardt_core::validators::CreditCardValidator;

let validator = CreditCardValidator::new();

pub fn with_card_types(types: Vec<CardType>) -> CreditCardValidator

Available on crate feature validators only.

Creates a validator that only accepts specific card types

Examples

use reinhardt_core::validators::{CreditCardValidator, CardType};

let validator = CreditCardValidator::with_card_types(vec![
    CardType::Visa,
    CardType::MasterCard,
]);

pub fn allow_types(self, types: Vec<CardType>) -> CreditCardValidator

Available on crate feature validators only.

Restricts accepted card types (builder pattern)

Examples

use reinhardt_core::validators::{CreditCardValidator, CardType};

let validator = CreditCardValidator::new()
    .allow_types(vec![CardType::Visa, CardType::MasterCard]);

pub fn with_message(self, message: impl Into<String>) -> CreditCardValidator

Available on crate feature validators only.

Sets a custom error message

Examples

use reinhardt_core::validators::CreditCardValidator;

let validator = CreditCardValidator::new()
    .with_message("Please enter a valid credit card number");

pub fn validate(&self, value: &str) -> Result<CardType, ValidationError>

Available on crate feature validators only.

Validates a credit card number and returns its type

This method:

1. Removes dashes and spaces from the input
2. Checks if the result contains only digits
3. Validates using the Luhn algorithm
4. Detects the card type
5. Checks if the card type is allowed (if type restrictions are set)

Examples

use reinhardt_core::validators::{CreditCardValidator, CardType};

let validator = CreditCardValidator::new();
let card_type = validator.validate("4532-0151-1283-0366").unwrap();
assert_eq!(card_type, CardType::Visa);

Trait Implementations

impl Default for CreditCardValidator

fn default() -> CreditCardValidator

Returns the “default value” for a type.

impl Validator<String> for CreditCardValidator

fn validate(&self, value: &String) -> Result<(), ValidationError>

Validates the given value, returning an error if validation fails.

impl Validator<str> for CreditCardValidator

fn validate(&self, value: &str) -> Result<(), ValidationError>

Validates the given value, returning an error if validation fails.