foyer_common/utils/
scope.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/// Scoped functional programming extensions.
16pub trait Scope {
17    /// Scoped with ownership.
18    fn with<F, R>(self, f: F) -> R
19    where
20        Self: Sized,
21        F: FnOnce(Self) -> R,
22    {
23        f(self)
24    }
25
26    /// Scoped with reference.
27    fn with_ref<F, R>(&self, f: F) -> R
28    where
29        F: FnOnce(&Self) -> R,
30    {
31        f(self)
32    }
33
34    /// Scoped with mutable reference.
35    fn with_mut<F, R>(&mut self, f: F) -> R
36    where
37        F: FnOnce(&mut Self) -> R,
38    {
39        f(self)
40    }
41}
42impl<T> Scope for T {}
foyer_common/utils/scope.rs

foyer_common/utils/
scope.rs
