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Why does Debug require Clone ? #81

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zeroexcuses opened this issue Mar 30, 2019 · 1 comment

zeroexcuses commented Mar 30, 2019

I'm looking at impl of Debug for HashMap.

https://github.com/bodil/im-rs/blob/master/src/hash/map.rs#L1558-L1559

Why do K & V need to have Clone in order to derive Debug for HashMap<K, V> ?

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bodil commented Apr 8, 2019

I expect it's a leftover from when HashMap itself required Clone on everything. Probably shouldn't be necessary any more.

bodil closed this as completed in

4dd6082

wsx-ucb mentioned this issue

Is Clone necessary for the Debug implementation of Vector? jneem/imbl#25

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