rs:5:21 | 5 | async fn recursive(){ | ^ recursive `async fn` | = note: a recursive `async fn` must be rewritten to return a boxed `dyn Future` = note: consider using the `async_recursion` crate: https://crates.io/crates/async_recursion 此时有两种解决方案,第一是手动将代码修改...
recursion in an `async fn` requires boxing a recursive `async fn` must be rewritten to return a boxed `dyn Future` consider using the `async_recursion` crate: https://crates.io/crates/async_recursion 所以需要添加#[async_recursion]或者改成Box返回。 参数其中多定义了两组HashSet用来存储已处理的...
consider using the `async_recursion` crate: https://crates.io/crates/async_recursion 所以需要添加#[async_recursion]或者改成Box返回。 参数其中多定义了两组HashSet用来存储已处理的路由及已处理的TryPath路由。 将循环获取合适的location,如果未找到直接返回503错误。 let path = req.path().clone(); let...
【疯狂的Rust库】async-recursion 如何写异步递归函数? 02:40 【疯狂的Rust库】zeroize 如何保证内存数据被清零? 02:27 【疯狂的Rust库】secrecy 保护密码不泄漏 02:08 【疯狂的Rust库】Bip39 如何生成比特币区块链组记词? 02:27 【疯狂的Rust库】async-std 实现了很多标准库的异步函数 02:59 【疯狂...
虽然Rust本身就支持Async编程,但很多应用依赖与社区的库: 标准库提供了最基本的特性、类型和功能,例如 Future trait async/await 语法直接被Rust编译器支持 futures crate 提供了许多实用类型、宏和函数。它们可以用于任何异步应用程序。 异步代码、IO 和任务生成的执行由 "async runtimes" 提供,例如 Tokio 和 async-...
Recursion 递归 Internally, async fn creates a state machine type containing each sub-Future being .awaited. This makes recursive async fns a little tricky, since the resulting state machine type has to contain itself: 在内部,async fn创建一个状态机类型,其中包含每个子Future being.awaited。这使得递...
[feature(feature1)]:来源于rust函数,特性有实验、beta、稳定版本等不同阶段,如果打上这个标签,就是让尽管可能是非稳定版,编译器你帮我带上这个特性,开个绿灯,有我用到。 #![feature(async_await,await_macro,pin)]:标明是只能在nightly版本使用 #![feature(specialization)]:只能在nightly版本实现的特化规则...
lazy_static ="1"clap ="2.*"futures = { version ="0.3", default-features =false, features = ["alloc"] } futures-util ="0.3"async-tungstenite = { version ="*", features= ["tokio-runtime"] } mongodb = { version ="1.*", features = ["tokio-runtime"] } ...
Support for recursion in async fn Async functions previously could not call themselves due to a compiler limitation. In 1.77, that limitation has been lifted, so recursive calls are permitted so long as they use some form of indirection to avoid an infinite size for the state of the function...
"async-recursion", "async-trait", "crossbeam-queue", "tokio", ] [[package]] name = "wd_log" version = "0.1.5" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "93c9e9d83964a485ec2edca0eaf9bc1b9be3df2d9a77c47cea5141af8ac7a944" depen...