Splat ComponentArray into keyword arguments

General Usage
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1

Hi all,

I have a situation in which “splatting” a ComponentArray into keyword arguments would be useful. Unfortunately, it is not currently possible. I was wondering whether it would be possible in principle? Could I add that capability?

MWE

using ComponentArrays

x = ComponentArray(a = 1, b = 2)

f(;a, b) = a + b

f(;x...)
2

That might be a good thing to add. It looks like it may only need a merge method defined. Would you mind opening up an issue for that?

In the meantime, though, you could always do something like:

julia> f(; NamedTuple(x)...)
3
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3

Awesome. I will add an issue. Thanks!

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4

Although converting to a NamedTuple does work, it does add some overhead. Out of curiosity, would your more permanent solution with merge be more efficient?

5

Unfortunately merge is going to have to convert to NamedTuple to perform the merge with the empty NamedTuple anyway (which is how keyword argument splatting works). I don’t think there is any way to buy into the keyword arg splatting without doing this. Maybe I’m wrong, though. Might be worth checking.

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