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use std::{fmt, ops::Deref};
use rb_sys::ruby_value_type;
use crate::{
encoding::EncodingCapable,
error::Error,
exception,
try_convert::TryConvert,
value::{private, NonZeroValue, ReprValue, Value},
};
#[derive(Clone, Copy)]
#[repr(transparent)]
pub struct RRegexp(NonZeroValue);
impl RRegexp {
#[inline]
pub fn from_value(val: Value) -> Option<Self> {
unsafe {
(val.rb_type() == ruby_value_type::RUBY_T_REGEXP)
.then(|| Self(NonZeroValue::new_unchecked(val)))
}
}
}
impl Deref for RRegexp {
type Target = Value;
fn deref(&self) -> &Self::Target {
self.0.get_ref()
}
}
impl fmt::Display for RRegexp {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", unsafe { self.to_s_infallible() })
}
}
impl fmt::Debug for RRegexp {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", self.inspect())
}
}
impl EncodingCapable for RRegexp {}
impl From<RRegexp> for Value {
fn from(val: RRegexp) -> Self {
*val
}
}
unsafe impl private::ReprValue for RRegexp {
fn to_value(self) -> Value {
*self
}
unsafe fn from_value_unchecked(val: Value) -> Self {
Self(NonZeroValue::new_unchecked(val))
}
}
impl ReprValue for RRegexp {}
impl TryConvert for RRegexp {
fn try_convert(val: Value) -> Result<Self, Error> {
Self::from_value(val).ok_or_else(|| {
Error::new(
exception::type_error(),
format!("no implicit conversion of {} into Regexp", unsafe {
val.classname()
},),
)
})
}
}