This repository has been archived on 2023-10-09. You can view files and clone it. You cannot open issues or pull requests or push a commit.

Hans Goudey 3a3d9488a1 Refactor: Const correct Custom Data API, prepare for CoW ...

Currently you can retrieve a mutable array from a const CustomData.
That makes code unsafe since the compiler can't check for correctness
itself. Fix that by introducing a separate function to retrieve mutable
arrays from CustomData. The new functions have the `_for_write`
suffix that make the code's intention clearer.

Because it makes retrieving write access an explicit step, this change
also makes proper copy-on-write possible for attributes.

Notes:
- The previous "duplicate referenced layer" functions are redundant
  with retrieving layers with write access
- The custom data functions that give a specific index only have
  `for_write` to simplify the API

Differential Revision: https://developer.blender.org/D14140

2023-01-13 17:22:07 -06:00

23 KiB

Raw Blame History

View Raw