Imports name this capability’s declared dependencies, which fune builds next to it in your project; each one links to its page.
use super::funejson::Value; ← the fune runtime: the JSON value the test vectors use; fune build keeps it only where a signature takes one
use super::money_currency_digits_data::CURRENCY_DIGITS; ← this capability’s own data, compiled from data/currency-digits.json into the same file by fune build
/// Decimal places in a currency's minor unit, per ISO 4217.
///
/// Dividing by 100 is wrong for yen, won, dinar and a few dozen others, so
/// anything moving between minor and major units asks here.
///
/// # Panics
/// Panics if the code is not an active ISO 4217 currency with a minor unit.
pub fn currency_digits(currency: &str) -> i64 {
match CURRENCY_DIGITS.iter().find(|c| c.code == currency) {
Some(row) => row.digits,
None => panic!("no ISO 4217 minor unit for currency \"{}\"", currency),
}
}
pub fn fune_vector(args: &[Value]) -> Value {
Value::Int(currency_digits(args[0].as_str()))
}