Suggest use to_string rather than format!("{}")

[leiysky]

What it does

Sometime, people are using format!("{}") to stringify an object, which can be rewritten in .to_string() to keep code clean.

Lint Name

No response

Category

style

Advantage

No response

Drawbacks

No response

Example

let a = format!("{}", x);

Could be written as:

let a = x.to_string();

[smoelius]

Could it be this already exists? https://rust-lang.github.io/rust-clippy/master/#useless_format

[andylokandy]

useless_format only take effect if foo is a string, but it should be any type that implemented Display.

[smoelius]

LOL #697