VIM Tip Scalar and Array Support

[hooovahh]

So I just discovered this, this morning and I think it will help out in making VIMs when dealing with supporting a scalar, or 1D array data type.  I have an example which is my Filter 1D Array VIM, posted here, which is heavily inspired by OpenG's implementation.

In it the developer can filter out a scalar, or a 1D array of something from a 1D array.  I did this by adding a Type Specialized structure at the start which checks to see if after building the array, if the data type matched in the incoming array.  If so it is a scalar and should be used.  I then have another case where the data just goes straight through thinking it must already be a 1D array.

But what I realized today is that is unnecessary.  If in the VIM my input is set to a 1D array, and we add a build array with only 1 terminal, and that build array is set to Concatenate, then that whole structure isn't needed.  A Scalar will become a 1D array with one element, and a 1D array will have no items added to it after the build array.

In this example the code simplification isn't much, but someone may have had two cases in a type specialized structure which handle scalar and 1D array separately and using this they could be combined them into one.  And one other minor thing, I don't think I will actually be updating the Filter 1D Array VIM to use this, just because knowing if the input is a scalar means other sorting work not shown can be ignored helping performance.

 

[Taylorh140]

Nice simple find! Thanks for the tip.