reqsign_core/
futures_util.rs

1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements.  See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership.  The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License.  You may obtain a copy of the License at
8//
9//   http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied.  See the License for the
15// specific language governing permissions and limitations
16// under the License.
17
18use std::pin::Pin;
19
20/// An owned dynamically typed [`Future`] for use in cases where you can't statically type your
21/// result or need to add some indirection.
22#[cfg(not(target_arch = "wasm32"))]
23pub type BoxedFuture<'a, T> = Pin<Box<dyn Future<Output = T> + Send + 'a>>;
24
25/// `BoxFuture`, but without the `Send` requirement.
26#[cfg(target_arch = "wasm32")]
27pub type BoxedFuture<'a, T> = Pin<Box<dyn Future<Output = T> + 'a>>;
28
29/// MaybeSend is a marker to determine whether a type is `Send` or not.
30///
31/// [`MaybeSend`] is equivalent to `Send` on non-wasm32 target.
32#[cfg(not(target_arch = "wasm32"))]
33pub trait MaybeSend: Send {}
34
35/// MaybeSend is a marker to determine whether a type is `Send` or not.
36///
37/// [`MaybeSend`] is empty on wasm32 target.
38#[cfg(target_arch = "wasm32")]
39pub trait MaybeSend {}
40
41#[cfg(not(target_arch = "wasm32"))]
42impl<T: Send> MaybeSend for T {}
43
44#[cfg(target_arch = "wasm32")]
45impl<T> MaybeSend for T {}
reqsign_core/futures_util.rs

reqsign_core/
futures_util.rs
