[GitHub] [arrow-rs] alamb commented on a change in pull request #240: Improve docs for NullArray, new_null_array and new_empty_array

[GitBox]

alamb commented on a change in pull request #240:
URL: https://github.com/apache/arrow-rs/pull/240#discussion_r623241151



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File path: arrow/src/array/null.rs
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@@ -42,12 +25,33 @@ use crate::array::{Array, ArrayData};
 use crate::datatypes::*;
 
 /// An Array where all elements are nulls
+///

Review comment:
       By moving the description to the struct, the documentation is now on the 
doc page I would expect (not the module level). Here is what it looks like now:
   
   ![Screen Shot 2021-04-29 at 12 54 51 
PM](https://user-images.githubusercontent.com/490673/116590775-24517b00-a8ec-11eb-8843-857ac3f3af68.png)
   




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