foyer_common/utils/
option.rs

1// Copyright 2025 foyer Project Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15/// Extension for [`std::option::Option`].
16pub trait OptionExt {
17    /// Wrapped type by [`Option`].
18    type Val;
19
20    /// Consume the wrapped value with the given function if there is.
21    fn then<F>(self, f: F)
22    where
23        F: FnOnce(Self::Val);
24}
25
26impl<T> OptionExt for Option<T> {
27    type Val = T;
28
29    fn then<F>(self, f: F)
30    where
31        F: FnOnce(Self::Val),
32    {
33        if let Some(val) = self {
34            f(val)
35        }
36    }
37}
foyer_common/utils/option.rs

foyer_common/utils/
option.rs
