len_zero: skip ranges if feature range_is_empty is not enabled
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len_zero: skip ranges if feature `range_is_empty` is not enabled If the feature is not enabled, calling `is_empty()` on a range is ambiguous. Moreover, the two possible resolutions are unstable methods, one inherent to the range and the other being part of the `ExactSizeIterator` trait. Since `len_zero` only checks for existing `is_empty()` inherent methods, we only take into account the `range_is_empty` feature. Related: rust-lang/rust#48111 (comment) changelog: len_zero: avoid linting ranges without #![feature(range_is_empty)] Fixes: #3807
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💔 Test failed - checks-action_test |
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Looks like we need another rustup https://github.com/rust-lang/rust-clippy/runs/716588484#step:12:43 |
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I wait until rust-lang/rust#72671 is merged and will then do the rustup. |
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If the feature is not enabled, calling
is_empty()on a range is ambiguous. Moreover, the two possible resolutions are unstable methods, one inherent to the range and the other being part of theExactSizeIteratortrait.Since
len_zeroonly checks for existingis_empty()inherent methods, we only take into account therange_is_emptyfeature.Related: rust-lang/rust#48111 (comment)
changelog: len_zero: avoid linting ranges without #![feature(range_is_empty)]
Fixes: #3807