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use std::convert::From;
use binding::fixnum;
use types::{Value, ValueType};
use {Object, VerifiedObject};
/// `Fixnum`
#[derive(Debug, PartialEq)]
pub struct Fixnum {
value: Value,
}
impl Fixnum {
/// Creates a new `Fixnum`.
///
/// # Examples
///
/// ```
/// use ruru::{Fixnum, VM};
/// # VM::init();
///
/// let fixnum = Fixnum::new(1);
///
/// assert_eq!(fixnum.to_i64(), 1);
/// ```
///
/// Ruby:
///
/// ```ruby
/// 1 == 1
/// ```
pub fn new(num: i64) -> Self {
Self::from(fixnum::int_to_num(num))
}
/// Retrieves an `i64` value from `Fixnum`.
///
/// # Examples
///
/// ```
/// use ruru::{Fixnum, VM};
/// # VM::init();
///
/// let fixnum = Fixnum::new(1);
///
/// assert_eq!(fixnum.to_i64(), 1);
/// ```
///
/// Ruby:
///
/// ```ruby
/// 1 == 1
/// ```
pub fn to_i64(&self) -> i64 {
fixnum::num_to_int(self.value())
}
}
impl From<Value> for Fixnum {
fn from(value: Value) -> Self {
Fixnum { value: value }
}
}
impl Object for Fixnum {
#[inline]
fn value(&self) -> Value {
self.value
}
}
impl VerifiedObject for Fixnum {
fn is_correct_type<T: Object>(object: &T) -> bool {
object.value().ty() == ValueType::Fixnum
}
fn error_message() -> &'static str {
"Error converting to Fixnum"
}
}