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Implemented __reduce__ method for types.SimpleNamespace #4975

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Merged
youknowone merged 2 commits into from
May 17, 2023
Merged

Implemented __reduce__ method for types.SimpleNamespace #4975

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e25dc27
Implemented __reduce__ method for types.SimpleNamespace
LucaSforza May 15, 2023
52c8a94
Removed decorator expectedFailure and #TODO comment
LucaSforza May 15, 2023
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2 changes: 0 additions & 2 deletions Lib/test/test_types.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1793,8 +1793,6 @@ class Spam(types.SimpleNamespace):
self.assertIs(type(spam), Spam)
self.assertEqual(vars(spam), {'ham': 8, 'eggs': 9})

# TODO: RUSTPYTHON
@unittest.expectedFailure
def test_pickle(self):
ns = types.SimpleNamespace(breakfast="spam", lunch="spam")

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20 changes: 16 additions & 4 deletions vm/src/builtins/namespace.rs
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@@ -1,17 +1,17 @@
use super::{PyType, PyTypeRef};
use super::{tuple::IntoPyTuple, PyTupleRef, PyType, PyTypeRef};
use crate::{
builtins::PyDict,
class::PyClassImpl,
function::{FuncArgs, PyComparisonValue},
recursion::ReprGuard,
types::{Comparable, Constructor, Initializer, PyComparisonOp, Representable},
AsObject, Context, Py, PyObject, PyPayload, PyRef, PyResult, VirtualMachine,
AsObject, Context, Py, PyObject, PyObjectRef, PyPayload, PyRef, PyResult, VirtualMachine,
};

/// A simple attribute-based namespace.
///
/// SimpleNamespace(**kwargs)
#[pyclass(module = false, name = "SimpleNamespace")]
#[pyclass(module = "types", name = "SimpleNamespace")]
#[derive(Debug)]
pub struct PyNamespace {}

Expand Down Expand Up @@ -43,7 +43,19 @@ impl PyNamespace {
flags(BASETYPE, HAS_DICT),
with(Constructor, Initializer, Comparable, Representable)
)]
impl PyNamespace {}
impl PyNamespace {
#[pymethod(magic)]
fn reduce(zelf: PyObjectRef, vm: &VirtualMachine) -> PyTupleRef {
let dict = zelf.as_object().dict().unwrap();
let obj = zelf.as_object().to_owned();
let result: (PyObjectRef, PyObjectRef, PyObjectRef) = (
obj.class().to_owned().into(),
vm.new_tuple(()).into(),
dict.into(),
);
result.into_pytuple(vm)
}
}

impl Initializer for PyNamespace {
type Args = FuncArgs;
Expand Down