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use core::ffi::c_void;
use crate::Encoding;
pub unsafe trait Encode {
const ENCODING: Encoding<'static>;
}
macro_rules! encode_impls {
($($t:ty : $e:ident,)*) => ($(
unsafe impl Encode for $t {
const ENCODING: Encoding<'static> = Encoding::$e;
}
)*);
}
encode_impls!(
i8: Char,
i16: Short,
i32: Int,
i64: LongLong,
u8: UChar,
u16: UShort,
u32: UInt,
u64: ULongLong,
f32: Float,
f64: Double,
bool: Bool,
(): Void,
*mut i8: String,
*const i8: String,
*mut u8: String,
*const u8: String,
);
unsafe impl Encode for isize {
#[cfg(target_pointer_width = "32")]
const ENCODING: Encoding<'static> = i32::ENCODING;
#[cfg(target_pointer_width = "64")]
const ENCODING: Encoding<'static> = i64::ENCODING;
}
unsafe impl Encode for usize {
#[cfg(target_pointer_width = "32")]
const ENCODING: Encoding<'static> = u32::ENCODING;
#[cfg(target_pointer_width = "64")]
const ENCODING: Encoding<'static> = u64::ENCODING;
}
unsafe impl Encode for *mut c_void {
const ENCODING: Encoding<'static> = Encoding::Pointer(&Encoding::Void);
}
unsafe impl Encode for *const c_void {
const ENCODING: Encoding<'static> = Encoding::Pointer(&Encoding::Void);
}
unsafe impl<T: 'static> Encode for *const T where for<'a> &'a T: Encode {
const ENCODING: Encoding<'static> = <&T as Encode>::ENCODING;
}
unsafe impl<T: 'static> Encode for *mut T where for<'a> &'a mut T: Encode {
const ENCODING: Encoding<'static> = <&mut T>::ENCODING;
}
unsafe impl<'a, T: 'a> Encode for Option<&'a T> where &'a T: Encode {
const ENCODING: Encoding<'static> = <&T>::ENCODING;
}
unsafe impl<'a, T: 'a> Encode for Option<&'a mut T> where &'a mut T: Encode {
const ENCODING: Encoding<'static> = <&mut T>::ENCODING;
}