Check for Default trait implementation in initial condition when linting [manual_unwrap_or_default]
#12566
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Default trait implementation in initial conditionDefault trait implementation in initial condition when linting [manual_unwrap_or_default]
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r? @Jarcho |
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☔ The latest upstream changes (presumably #12579) made this pull request unmergeable. Please resolve the merge conflicts. |
I want to be clear: this is just the initial draft outlining what, I think, should be the responsibilities of the team members. It has not yet been discussed with anyone else.
Instead of just saying “this function's stack frame is big”, report: * the (presumed) size of the frame * the size and type of the largest local contributing to that size * the configurable limit that was exceeded (once)
Signed-off-by: shandongbinzhou <[email protected]>
This extends the `filter_map_identity` lint to support typed closures. For untyped closures, we know that the program compiles, and therefore we can safely suggest using flatten. For typed closures, they may participate in type resolution. In this case we use `Applicability::MaybeIncorrect`. Details: https://rust-lang.zulipchat.com/#narrow/stream/257328-clippy/topic/Should.20.60filter_map_identity.60.20lint.20when.20closures.20are.20typed.3F
`Box::default()` had its `#[rustc_box]` attribute removed in 1.69 so is no longer a perf related lint The lint is moved to style but no longer produces suggestions containing turbofishes, as they're often longer/more annoying to type
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☔ The latest upstream changes (presumably #12453) made this pull request unmergeable. Please resolve the merge conflicts. |
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Fixes #12564
changelog: Fix [
manual_unwrap_or_default] false positive when initialmatch/if letcondition doesn't implementDefaultbut the return type does.