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Detect situations where impl Trait is preferred. #1161

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ticki opened this issue Aug 12, 2016 · 3 comments
Open

Detect situations where impl Trait is preferred. #1161

ticki opened this issue Aug 12, 2016 · 3 comments
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A-lint Area: New lints E-medium Call for participation: Medium difficulty level problem and requires some initial experience. L-unnecessary Lint: Warn about unnecessary code T-middle Type: Probably requires verifiying types

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@ticki
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ticki commented Aug 12, 2016

rust-lang/rust#35091
@oli-obk oli-obk added E-medium Call for participation: Medium difficulty level problem and requires some initial experience. T-middle Type: Probably requires verifiying types A-lint Area: New lints L-unnecessary Lint: Warn about unnecessary code labels Aug 12, 2016
@oli-obk
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oli-obk commented Aug 12, 2016

should probably be allow by default, b/c it's not stable

@ticki
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ticki commented Aug 12, 2016

Agreed.

@camsteffen
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Just a note: Changing to impl Trait is a breaking change, particularly when generic parameters are specified at the call site.

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A-lint Area: New lints E-medium Call for participation: Medium difficulty level problem and requires some initial experience. L-unnecessary Lint: Warn about unnecessary code T-middle Type: Probably requires verifiying types
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