arbitrary/foreign/core/
result.rs

1use crate::{size_hint, Arbitrary, Error, MaxRecursionReached, Unstructured};
2
3impl<'a, T, E> Arbitrary<'a> for Result<T, E>
4where
5    T: Arbitrary<'a>,
6    E: Arbitrary<'a>,
7{
8    fn arbitrary(u: &mut Unstructured<'a>) -> Result<Self, Error> {
9        Ok(if <bool as Arbitrary<'a>>::arbitrary(u)? {
10            Ok(<T as Arbitrary>::arbitrary(u)?)
11        } else {
12            Err(<E as Arbitrary>::arbitrary(u)?)
13        })
14    }
15
16    #[inline]
17    fn size_hint(depth: usize) -> (usize, Option<usize>) {
18        Self::try_size_hint(depth).unwrap_or_default()
19    }
20
21    #[inline]
22    fn try_size_hint(depth: usize) -> Result<(usize, Option<usize>), MaxRecursionReached> {
23        Ok(size_hint::and(
24            <bool as Arbitrary>::size_hint(depth),
25            size_hint::or(
26                <T as Arbitrary>::try_size_hint(depth)?,
27                <E as Arbitrary>::try_size_hint(depth)?,
28            ),
29        ))
30    }
31}
arbitrary/foreign/core/result.rs

arbitrary/foreign/core/
result.rs
