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A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lintsA-suggestion-diagnosticsArea: Suggestions generated by the compiler applied by `cargo fix`Area: Suggestions generated by the compiler applied by `cargo fix`D-terseDiagnostics: An error or lint that doesn't give enough information about the problem at hand.Diagnostics: An error or lint that doesn't give enough information about the problem at hand.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.
Description
Given the following code: https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=af286f54d571ef5e00cd728ea244b3aa
fn main() {
vec![].bs_xmpty();
vec![].empty();
}
The current output is:
error[[E0599]](https://doc.rust-lang.org/stable/error-index.html#E0599): no method named `bs_xmpty` found for struct `Vec<_>` in the current scope
[--> src/main.rs:2:12
](https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=af286f54d571ef5e00cd728ea244b3aa#) |
2 | vec![].bs_xmpty();
| ^^^^^^^^ help: there is an associated function with a similar name: `is_empty`
error[[E0599]](https://doc.rust-lang.org/stable/error-index.html#E0599): no method named `empty` found for struct `Vec<_>` in the current scope
[--> src/main.rs:3:12
](https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=af286f54d571ef5e00cd728ea244b3aa#) |
3 | vec![].empty();
| ^^^^^ method not found in `Vec<_>`
For more information about this error, try `rustc --explain E0599`.
error: could not compile `playground` due to 2 previous errors
Ideally the output should look like:
error[[E0599]](https://doc.rust-lang.org/stable/error-index.html#E0599): no method named `bs_xmpty` found for struct `Vec<_>` in the current scope
[--> src/main.rs:2:12
](https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=af286f54d571ef5e00cd728ea244b3aa#) |
2 | vec![].bs_xmpty();
| ^^^^^^^^ help: there is an associated function with a similar name: `is_empty`
error[[E0599]](https://doc.rust-lang.org/stable/error-index.html#E0599): no method named `empty` found for struct `Vec<_>` in the current scope
[--> src/main.rs:3:12
](https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=af286f54d571ef5e00cd728ea244b3aa#) |
3 | vec![].empty();
| ^^^^^^^^ help: there is an associated function with a similar name: `is_empty`
For more information about this error, try `rustc --explain E0599`.
error: could not compile `playground` due to 2 previous errors
To a human, the method name is_empty
is much closer to empty
than to bs_xmpty
.
However, the algorithm used by the compiler to suggest similar method names seems a little bit simplistic and fails to suggest anything when a naive programmer like me types empty()
instead of is_empty
. The programmer then has to open the documentation, and he does not like that ;)
TaKO8Ki, pierwill and AlephAlpha
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A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lintsA-suggestion-diagnosticsArea: Suggestions generated by the compiler applied by `cargo fix`Area: Suggestions generated by the compiler applied by `cargo fix`D-terseDiagnostics: An error or lint that doesn't give enough information about the problem at hand.Diagnostics: An error or lint that doesn't give enough information about the problem at hand.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.