rust-lang / rust-lang/rust-clippy
Suggest to remove empty impl body
Open
@vogelbirb is already working on this.
Since Mar 25, 2026.
A-lint
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- Rust
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Description
What it does
An impl body without any functions does not seem to have any meaning, and just increases the code size. This is not to be confused with impl for a trait - those are in fact needed.
Advantage
- Removing dead code
Drawbacks
No response
Example
struct Foo;
impl Foo {} // <- this can be removed
struct Bar<'a>(&'a str);
impl<'a> Bar<'a> {} // <- this can be removed
Could be written as:
struct Foo;
struct Bar<'a>(&'a str);
Comparison with existing lints
No response
Additional Context
No response
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Assessment
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