use arrow::array::Array;
pub unsafe trait IsFloat: private::Sealed {
fn is_float() -> bool {
false
}
#[allow(clippy::wrong_self_convention)]
fn is_nan(&self) -> bool
where
Self: Sized,
{
false
}
}
unsafe impl IsFloat for i8 {}
unsafe impl IsFloat for i16 {}
unsafe impl IsFloat for i32 {}
unsafe impl IsFloat for i64 {}
unsafe impl IsFloat for u8 {}
unsafe impl IsFloat for u16 {}
unsafe impl IsFloat for u32 {}
unsafe impl IsFloat for u64 {}
unsafe impl IsFloat for &str {}
unsafe impl IsFloat for &[u8] {}
unsafe impl IsFloat for bool {}
unsafe impl<T: IsFloat> IsFloat for Option<T> {}
mod private {
pub trait Sealed {}
impl Sealed for i8 {}
impl Sealed for i16 {}
impl Sealed for i32 {}
impl Sealed for i64 {}
impl Sealed for u8 {}
impl Sealed for u16 {}
impl Sealed for u32 {}
impl Sealed for u64 {}
impl Sealed for f32 {}
impl Sealed for f64 {}
impl Sealed for &str {}
impl Sealed for &[u8] {}
impl Sealed for bool {}
impl<T: Sealed> Sealed for Option<T> {}
}
macro_rules! impl_is_float {
($tp:ty) => {
unsafe impl IsFloat for $tp {
fn is_float() -> bool {
true
}
fn is_nan(&self) -> bool {
<$tp>::is_nan(*self)
}
}
};
}
impl_is_float!(f32);
impl_is_float!(f64);
pub type ArrayRef = Box<dyn Array>;