add PyUntypedBuffer
#5458
add PyUntypedBuffer
#5458
Conversation
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Is anyone interested in reviewing this? If not, I am tempted to merge this soon to move this and #5245 forward. |
src/buffer.rs
Outdated
| #[inline] | ||
| pub fn buf_ptr(&self) -> *mut c_void { | ||
| self.raw().buf | ||
| self.0.buf_ptr() |
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I think we do not necessarily need to have these forwarding methods. They should be available via Deref directly from the underlying PyUntypedBuffer. It would be a breaking change however because fully qualified syntax would change,
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Good question, and I'm open to not having them. I added exactly to avoid breaking fully-qualified syntax, though I don't know how much that'll really be used in practice.
If we removed, I guess we could just nod to this change in the migration guide.
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I see. I would not expect it to be a problem in practice. Outside of macros fully-qualified syntax is rarely used and migrating would be trivial anyway. I think I would remove them, but I don't feel super strong about that and you can also decide to keep if you prefer.
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I removed these, we can restore them if we have complaints.
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This is a proposal to make a first step towards resolving #5245
The idea is to add
PyUntypedBuffer, which is a sibling toPyBuffer<T>which does not care about the actual element type it holds inside. I got the idea of the name fromPyUntypedArrayinrust-numpy.I can imagine that this is potentially applicable in a number of cases where the user wants to attempt to get a buffer export from an object but doesn't necessarily know what element type the object will export.
PyUntypedBuffer::get()can be used to get the export,.format()can then be inspected to deduce what concrete elementTto cast the buffer to.I think while we're here I moved a lot of the implementations of methods from
PyBuffer<T>toPyUntypedBuffer, which may slightly reduce generic code bloat.