Show the unused type for unused_results lint
#91818
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
I think it's helpful to know what type was unused when looking at these warnings. The type will likely determine whether the result *should* be used, or whether it should just be ignored. Including the type also matches the behavior of the `must_use` lint: unused `SomeType` that must be used.
camelid
added
the
T-compiler
|
r? @jackh726 (rust-highfive has picked a reviewer for you, use r? to override) |
rust-highfive
added
the
S-waiting-on-review
camelid
added
the
A-lint
camelid
commented
Dec 12, 2021
| @@ -18,7 +18,7 @@ LL | foo::<MustUseMsg>(); | |||
| | | |||
| = note: some message | |||
|
|
|||
| error: unused result | |||
| error: unused result of type `isize` | |||
There was a problem hiding this comment.
Alternatively, the type could be displayed in a note, but using the title is consistent with unused_must_use and easier to scan IMO.
|
@bors r+ |
|
📌 Commit f53e489 has been approved by |
bors
added
S-waiting-on-bors
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Dec 17, 2021
Show the unused type for `unused_results` lint I think it's helpful to know what type was unused when looking at these warnings. The type will likely determine whether the result *should* be used, or whether it should just be ignored. Including the type also matches the behavior of the `must_use` lint: unused `SomeType` that must be used.
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Dec 17, 2021
Show the unused type for `unused_results` lint I think it's helpful to know what type was unused when looking at these warnings. The type will likely determine whether the result *should* be used, or whether it should just be ignored. Including the type also matches the behavior of the `must_use` lint: unused `SomeType` that must be used.
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Dec 17, 2021
Show the unused type for `unused_results` lint I think it's helpful to know what type was unused when looking at these warnings. The type will likely determine whether the result *should* be used, or whether it should just be ignored. Including the type also matches the behavior of the `must_use` lint: unused `SomeType` that must be used.
This was referenced Dec 17, 2021
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Dec 18, 2021
…askrgr Rollup of 7 pull requests Successful merges: - rust-lang#87901 (Fix suggestion of additional `pub` when using `pub pub fn ...`) - rust-lang#89090 (Lint bare traits in AstConv.) - rust-lang#91818 (Show the unused type for `unused_results` lint) - rust-lang#91910 (miri: lift restriction on extern types being the only field in a struct) - rust-lang#91928 (Constify (most) `Option` methods) - rust-lang#91975 (Move generator check earlier in inlining.) - rust-lang#92016 (builtin_macros: allow external consumers for AsmArgs parsing) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
I think it's helpful to know what type was unused when looking at these
warnings. The type will likely determine whether the result should be
used, or whether it should just be ignored.
Including the type also matches the behavior of the
must_uselint:unused
SomeTypethat must be used.