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Implement TrustedRandomAccess for vec::Drain #81617

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wants to merge 3 commits into from
Closed

Implement TrustedRandomAccess for vec::Drain #81617

wants to merge 3 commits into from

Commits on Oct 10, 2021

  1. Add SAFETY comment to the TrustedLen impl of vec::Drain

    @sdroege
    sdroege committed Oct 10, 2021
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  2. Implement TrustedRandomAccess for vec::Drain

    @sdroege
    sdroege committed Oct 10, 2021
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  3. Only exhaust the slice iterator in vec::Drain if the items need dro… 

    …pping

Otherwise this simply causes advancing of the iterator with no other
effects, which is unnecessary work.
    @sdroege
    sdroege committed Oct 10, 2021
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