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// SPDX-FileCopyrightText: 2021 Bruno Corrêa Zimmermann <brunoczim@gmail.com>
// SPDX-FileCopyrightText: 2021 Kamila Borowska <kamila@borowska.pw>
//
// SPDX-License-Identifier: MIT OR Apache-2.0
use crate::{enum_map, EnumArray, EnumMap};
use arbitrary::{Arbitrary, Result, Unstructured};
/// Requires crate feature `"arbitrary"`
impl<'a, K: EnumArray<V>, V: Arbitrary<'a>> Arbitrary<'a> for EnumMap<K, V> {
fn arbitrary(u: &mut Unstructured<'a>) -> Result<EnumMap<K, V>> {
Ok(enum_map! {
_ => Arbitrary::arbitrary(u)?,
})
}
fn size_hint(depth: usize) -> (usize, Option<usize>) {
if K::LENGTH == 0 {
(0, Some(0))
} else {
let (lo, hi) = V::size_hint(depth);
(
lo.saturating_mul(K::LENGTH),
hi.and_then(|hi| hi.checked_mul(K::LENGTH)),
)
}
}
}