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Ch2 Listing 2.22: code can be simplified without ref #61

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ChenZhongPu opened this issue Dec 1, 2021 · 0 comments
Open

Ch2 Listing 2.22: code can be simplified without ref #61

ChenZhongPu opened this issue Dec 1, 2021 · 0 comments

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@ChenZhongPu
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At line 46 of Listing 2.22,

for &(i, ref line) in local_ctx.iter()

I think introducing ref here would pose a burden for understanding. A better and simpler way:

for (i, line) in local_ctx.iter()

Both ways are to borrow, not move.
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