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use std::convert::From;
use types::Value;
use util;
use {Object, VerifiedObject};
/// `TrueClass` and `FalseClass`
#[derive(Debug, PartialEq)]
pub struct Boolean {
value: Value,
}
impl Boolean {
/// Creates a new instance boolean value from `bool`.
///
/// # Examples
///
/// ```
/// use ruru::{Boolean, VM};
/// # VM::init();
///
/// assert_eq!(Boolean::new(true).to_bool(), true);
/// ```
///
/// Ruby:
///
/// ```ruby
/// true == true
/// ```
pub fn new(state: bool) -> Self {
Self::from(util::bool_to_value(state))
}
/// Retrieves a `bool` value from `Boolean`.
///
/// # Examples
///
/// ```
/// use ruru::{Boolean, VM};
/// # VM::init();
///
/// assert_eq!(Boolean::new(true).to_bool(), true);
/// ```
///
/// Ruby:
///
/// ```ruby
/// true == true
/// ```
pub fn to_bool(&self) -> bool {
self.value().is_true()
}
}
impl From<Value> for Boolean {
fn from(value: Value) -> Self {
Boolean { value: value }
}
}
impl Object for Boolean {
#[inline]
fn value(&self) -> Value {
self.value
}
}
impl VerifiedObject for Boolean {
fn is_correct_type<T: Object>(object: &T) -> bool {
let value = object.value();
value.is_true() || value.is_false()
}
fn error_message() -> &'static str {
"Error converting to Boolean"
}
}