1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
use super::{FromForeign, InputType, ReturnType, ToForeign};
use std::convert::Infallible;
pub struct BoolMarshaler;
impl InputType for BoolMarshaler {
type Foreign = u8;
type ForeignTraitObject = ();
}
impl ReturnType for BoolMarshaler {
type Foreign = u8;
type ForeignTraitObject = ();
fn foreign_default() -> u8 {
0
}
}
impl FromForeign<u8, bool> for BoolMarshaler {
type Error = Infallible;
#[inline(always)]
unsafe fn from_foreign(i: u8) -> Result<bool, Self::Error> {
Ok(i != 0)
}
}
impl ToForeign<bool, u8> for BoolMarshaler {
type Error = std::convert::Infallible;
#[inline(always)]
fn to_foreign(b: bool) -> Result<u8, Self::Error> {
Ok(if b { 1 } else { 0 })
}
}