警告：`auto-ref`（bin'auto-ref; quot;）生成1个警告

发布于 2025-02-12 19:29:15 字数 1101 浏览 0 评论 0原文

在运行以下代码时，我会从Rust Compiler那里获得此WARNIG：

fn main() {
    let test = 3;
    let bar = Bar(test);
    (&bar).foo();
}

#[derive(Debug, Copy, Clone)]
struct Bar(i32);

impl Bar {

    fn foo(self) -> () {

        println!("{:?}", self);
    }

}

我想在fn Method_name（self）上尝试自动ref规则。

我在Termux上运行货物1.61。

谁能向我解释什么是实际警告或如何显示它？

编辑：这是术语控制台输出

~/auto-ref/src $ cargo run
warning: Hard linking files in the incremental compilation cache failed. Copying files instead. Consider moving the cache directory to a file system which supports hard linking in session dir `/data/data/com.termux/files/home/auto-ref/target/debug/incremental/auto_ref-2c1jpkoha1tv/s-gbbxgywkr4-kv6r95-working`

warning: `auto-ref` (bin "auto-ref") generated 1 warning
    Finished dev [unoptimized + debuginfo] target(s) in 1.11s
     Running `/data/data/com.termux/files/home/auto-ref/target/debug/auto-ref`                            Bar(3)
~/auto-ref/src $

原文

I get this warnig from the rust compiler, when running the following code:

fn main() {
    let test = 3;
    let bar = Bar(test);
    (&bar).foo();
}

#[derive(Debug, Copy, Clone)]
struct Bar(i32);

impl Bar {

    fn foo(self) -> () {

        println!("{:?}", self);
    }

}

I wanted to try out the auto-ref rule on fn method_name(self).

I run cargo 1.61 on termux.

Can anyone explain to me what the actual warning is or how I can get it to be displayed?

EDIT:
Here's the termux console output

~/auto-ref/src $ cargo run
warning: Hard linking files in the incremental compilation cache failed. Copying files instead. Consider moving the cache directory to a file system which supports hard linking in session dir `/data/data/com.termux/files/home/auto-ref/target/debug/incremental/auto_ref-2c1jpkoha1tv/s-gbbxgywkr4-kv6r95-working`

warning: `auto-ref` (bin "auto-ref") generated 1 warning
    Finished dev [unoptimized + debuginfo] target(s) in 1.11s
     Running `/data/data/com.termux/files/home/auto-ref/target/debug/auto-ref`                            Bar(3)
~/auto-ref/src $

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你在我安 2025-02-19 19:29:15

好，我现在明白了。我认为警告只是警告摘要。我很困惑，因为我试图测试一条规则，该规则说A＆amp;自我方法参数可以在使用类型自我时自动引用。警告提到了自动REF-因此我的困惑
- 但我认为实际上是关于链接警告。

我尝试的是以下内容；

使用自动参考规则，以便您做

bar.foo()

而不是

(&bar).foo()

。
另外，示例代码甚至没有这样做。这将是正确的示例。

fn main() {
    let test = 3;
    let bar = Bar(test);
    bar.foo();
}

#[derive(Debug, Copy, Clone)]
struct Bar(i32);

impl Bar {

    fn foo(&self) -> () {

        println!("{:?}", self);
    }

}

Ok, I understand now. What I thought was a warning was just the warnings summary. I got confused because I tried to test a rule that says that a &self method argument can automatically be referenced when using it on type self. The warning mentions auto-ref -- hence my confusion
-- but I think is actually about the linking warning.

What I tried was the following;

use the aut ref rule such that you do

bar.foo()

instead of

(&bar).foo()

.
Also the example code doesn't even do this. Here would be the correct example.

fn main() {
    let test = 3;
    let bar = Bar(test);
    bar.foo();
}

#[derive(Debug, Copy, Clone)]
struct Bar(i32);

impl Bar {

    fn foo(&self) -> () {

        println!("{:?}", self);
    }

}

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