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add Bound constructors for PyMemoryView

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This commit is contained in:
Icxolu 2024-01-30 20:28:04 +01:00
parent e704a760b7
commit b14dbcf29f
1 changed files with 32 additions and 4 deletions
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36
src/types/memoryview.rs
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@ -1,5 +1,7 @@
use crate::err::PyResult;
use crate::{ffi, AsPyPointer, PyAny};
use crate::ffi_ptr_ext::FfiPtrExt;
use crate::py_result_ext::PyResultExt;
use crate::{ffi, AsPyPointer, Bound, PyAny, PyNativeType};
/// Represents a Python `memoryview`.
#[repr(transparent)]
@ -8,14 +10,30 @@ pub struct PyMemoryView(PyAny);
pyobject_native_type_core!(PyMemoryView, pyobject_native_static_type_object!(ffi::PyMemoryView_Type), #checkfunction=ffi::PyMemoryView_Check);
impl PyMemoryView {
/// Creates a new Python `memoryview` object from another Python object that
/// implements the buffer protocol.
/// Deprecated form of [`PyMemoryView::from_bound`]
#[cfg_attr(
not(feature = "gil-refs"),
deprecated(
since = "0.21.0",
note = "`PyMemoryView::from` will be replaced by `PyMemoryView::from_bound` in a future PyO3 version"
)
)]
pub fn from(src: &PyAny) -> PyResult<&PyMemoryView> {
unsafe {
src.py()
.from_owned_ptr_or_err(ffi::PyMemoryView_FromObject(src.as_ptr()))
}
}
/// Creates a new Python `memoryview` object from another Python object that
/// implements the buffer protocol.
pub fn from_bound<'py>(src: &Bound<'py, PyAny>) -> PyResult<Bound<'py, Self>> {
unsafe {
ffi::PyMemoryView_FromObject(src.as_ptr())
.assume_owned_or_err(src.py())
.downcast_into_unchecked()
}
}
}
impl<'py> TryFrom<&'py PyAny> for &'py PyMemoryView {
@ -24,6 +42,16 @@ impl<'py> TryFrom<&'py PyAny> for &'py PyMemoryView {
/// Creates a new Python `memoryview` object from another Python object that
/// implements the buffer protocol.
fn try_from(value: &'py PyAny) -> Result<Self, Self::Error> {
PyMemoryView::from(value)
PyMemoryView::from_bound(&value.as_borrowed()).map(Bound::into_gil_ref)
}
}
impl<'py> TryFrom<&Bound<'py, PyAny>> for Bound<'py, PyMemoryView> {
type Error = crate::PyErr;
/// Creates a new Python `memoryview` object from another Python object that
/// implements the buffer protocol.
fn try_from(value: &Bound<'py, PyAny>) -> Result<Self, Self::Error> {
PyMemoryView::from_bound(value)
}
}