Fix map_clone bad suggestion
#3662
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added 4 commits
January 15, 2019 08:09
`cloned` requires that the elements of the iterator must be references. This change determines if that is the case by examining the type of the closure argument and suggesting `.cloned` only if it is a reference. When the closure argument is not a reference, it suggests removing the `map` call instead. A minor problem with this change is that the new check sometimes overlaps with the `clone_on_copy` lint. Fixes #498
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@bors r+ |
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📌 Commit 89de4c9 has been approved by |
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Jan 15, 2019
Fix `map_clone` bad suggestion `cloned` requires that the elements of the iterator must be references. This change determines if that is the case by examining the type of the closure argument and suggesting `.cloned` only if it is a reference. When the closure argument is not a reference, it suggests removing the `map` call instead. A minor problem with this change is that the new check sometimes overlaps with the `clone_on_copy` lint. Fixes #498
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☀️ Test successful - checks-travis, status-appveyor |
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clonedrequires that the elements of the iterator must be references. Thischange determines if that is the case by examining the type of the closure
argument and suggesting
.clonedonly if it is a reference. When the closureargument is not a reference, it suggests removing the
mapcall instead.A minor problem with this change is that the new check sometimes overlaps
with the
clone_on_copylint.Fixes #498