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rust-clippy/clippy_lints
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bors cb8df45333 Auto merge of #10027 - smoelius:fix-10021, r=dswij 
Fix 10021

This PR proposes a fix for #10021.

The problem is similar to the one that `@mikerite` described in #9505. The compiler is generating an empty substitution for a call, even though the type of `Self` seems to be needed for a predicate. In `@mikerite's` case, the call was to [`IntoFuture::into_future`](https://doc.rust-lang.org/std/future/trait.IntoFuture.html#tymethod.into_future). In this case, the call is to [`Try::branch`](https://doc.rust-lang.org/std/ops/trait.Try.html#tymethod.branch).

The proposed fix is to verify that the parameter whose type is changing has an index within the substitution. The strikes me as a reasonable approach, since if the check were to fail, the following code would be a no-op:

4c123a06ba/clippy_lints/src/methods/unnecessary_to_owned.rs (L420-L428)

Like `@mikerite's` original solution, this solution turns ICEs into false negatives.

changelog: fix `unnecessary_to_owned` false positive involving `Try::branch`
2022-12-04 01:58:43 +00:00
..
src Auto merge of #10027 - smoelius:fix-10021, r=dswij 2022-12-04 01:58:43 +00:00
Cargo.toml Merge commit 'f4850f7292efa33759b4f7f9b7621268979e9914' into clippyup 2022-11-21 20:51:52 +01:00
README.md clippy_lints: readme: don't mention crates.io since it is no longer used to publish clippy. 2020-03-10 01:05:54 +01:00

README.md

This crate contains Clippy lints. For the main crate, check GitHub.