NSTextField intrinsicContentSize width is always -1 (NSViewNoInstrinsicMetric)

I've got a pair of editable text fields in a view using autolayout. (For completeness, these are inside an

NSTableRowView

in an editable table, but I don't think that should matter.)

I'd like the fields to resize their width based on their content, especially once they are edited.

However,

NSTextField

is not cooperating. I added some code to log the

intrinsicContentSize

whenever the edit field ends editing, and the value is always

{ NSViewNoInstrinsicMetric, 15 }

, meaning the field has no intrinsic width.

I've seen a number of posts about multi-line

NSTextField

and vertical (height) resizing, wrapping, and so on, but I can't find any questions or answers that apply here. The fields are both set to "use single line", "clip", and "scroll".

I've tried sending the fields

updateConstraints

and

invalidateIntrinsicContentSize

messages, but they don't seem to have any effect.

I know I can create a subclass of NSTextField and hack this, but I don't understand why this isn't working in the first place. Or maybe

NSTextField

simply doesn't have an intrinsic width, but I can't find that documented anywhere.