-
Notifications
You must be signed in to change notification settings - Fork 943
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
* Negative and `*args` shape handling * Rename to `PyShapeWithHole` + validate that only one hole exists * Regenerate stubs --------- Co-authored-by: Laurent Mazare <laurent.mazare@gmail.com>
- Loading branch information
1 parent
154c674
commit 174b208
Showing
10 changed files
with
181 additions
and
50 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
|
@@ -18,3 +18,5 @@ | |
Scalar = Union[int, float] | ||
|
||
Index = Union[int, slice, None, "Ellipsis"] | ||
|
||
Shape = Union[int, Sequence[int]] |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,99 @@ | ||
use ::candle::Tensor; | ||
use pyo3::prelude::*; | ||
|
||
#[derive(Clone, Debug)] | ||
/// Represents an absolute shape e.g. (1, 2, 3) | ||
pub struct PyShape(Vec<usize>); | ||
|
||
impl<'source> pyo3::FromPyObject<'source> for PyShape { | ||
fn extract(ob: &'source PyAny) -> PyResult<Self> { | ||
if ob.is_none() { | ||
return Err(PyErr::new::<pyo3::exceptions::PyValueError, _>( | ||
"Shape cannot be None", | ||
)); | ||
} | ||
|
||
let tuple = ob.downcast::<pyo3::types::PyTuple>()?; | ||
if tuple.len() == 1 { | ||
let first_element = tuple.get_item(0)?; | ||
let dims: Vec<usize> = pyo3::FromPyObject::extract(first_element)?; | ||
Ok(PyShape(dims)) | ||
} else { | ||
let dims: Vec<usize> = pyo3::FromPyObject::extract(tuple)?; | ||
Ok(PyShape(dims)) | ||
} | ||
} | ||
} | ||
|
||
impl From<PyShape> for ::candle::Shape { | ||
fn from(val: PyShape) -> Self { | ||
val.0.into() | ||
} | ||
} | ||
|
||
#[derive(Clone, Debug)] | ||
/// Represents a shape with a hole in it e.g. (1, -1, 3) | ||
pub struct PyShapeWithHole(Vec<isize>); | ||
|
||
impl<'source> pyo3::FromPyObject<'source> for PyShapeWithHole { | ||
fn extract(ob: &'source PyAny) -> PyResult<Self> { | ||
if ob.is_none() { | ||
return Err(PyErr::new::<pyo3::exceptions::PyValueError, _>( | ||
"Shape cannot be None", | ||
)); | ||
} | ||
|
||
let tuple = ob.downcast::<pyo3::types::PyTuple>()?; | ||
let dims: Vec<isize> = if tuple.len() == 1 { | ||
let first_element = tuple.get_item(0)?; | ||
pyo3::FromPyObject::extract(first_element)? | ||
} else { | ||
pyo3::FromPyObject::extract(tuple)? | ||
}; | ||
|
||
// Ensure we have only positive numbers and at most one "hole" (-1) | ||
let negative_ones = dims.iter().filter(|&&x| x == -1).count(); | ||
let any_invalid_dimensions = dims.iter().any(|&x| x < -1 || x == 0); | ||
if negative_ones > 1 || any_invalid_dimensions { | ||
return Err(PyErr::new::<pyo3::exceptions::PyValueError, _>(format!( | ||
"Invalid dimension in shape: {:?}", | ||
dims | ||
))); | ||
} | ||
|
||
Ok(PyShapeWithHole(dims)) | ||
} | ||
} | ||
|
||
impl PyShapeWithHole { | ||
/// Returns `true` if the shape is absolute e.g. (1, 2, 3) | ||
pub fn is_absolute(&self) -> bool { | ||
self.0.iter().all(|x| *x > 0) | ||
} | ||
|
||
/// Convert a relative shape to an absolute shape e.g. (1, -1) -> (1, 12) | ||
pub fn to_absolute(&self, t: &Tensor) -> PyResult<PyShape> { | ||
if self.is_absolute() { | ||
return Ok(PyShape( | ||
self.0.iter().map(|x| *x as usize).collect::<Vec<usize>>(), | ||
)); | ||
} | ||
|
||
let mut elements = t.elem_count(); | ||
let mut new_dims: Vec<usize> = vec![]; | ||
for dim in self.0.iter() { | ||
if *dim > 0 { | ||
new_dims.push(*dim as usize); | ||
elements /= *dim as usize; | ||
} else if *dim == -1 { | ||
new_dims.push(elements); | ||
} else { | ||
return Err(PyErr::new::<pyo3::exceptions::PyValueError, _>(format!( | ||
"Invalid dimension in shape: {}", | ||
dim | ||
))); | ||
} | ||
} | ||
Ok(PyShape(new_dims)) | ||
} | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.