impl Index and IndexMut

[Zefick]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 96.66% and project coverage change: +1.54 🎉

Comparison is base (23d81bb) 35.15% compared to head (986ae72) 36.69%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #20      +/-   ##
==========================================
+ Coverage   35.15%   36.69%   +1.54%     
==========================================
  Files           8        9       +1     
  Lines        1027     1052      +25     
==========================================
+ Hits          361      386      +25     
  Misses        666      666              

Impacted Files	Coverage Δ
src/lib.rs	14.55% <ø> (+0.01%)	⬆️
src/index.rs	96.15% <96.15%> (ø)
src/map.rs	91.40% <100.00%> (ø)

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[yegor256]

@Zefick the coverage dropped, we won't be able to merge this way. Can you add more tests to cover the functionality better?

[yegor256]

@rultor merge

[rultor]

@rultor merge

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@yegor256 Done! FYI, the full log is here (took me 3min)