1use crate::conversion::IntoPyObject;
2#[cfg(feature = "experimental-inspect")]
3use crate::inspect::types::TypeInfo;
4use crate::types::list::new_from_iter;
5use crate::{Bound, PyAny, PyErr, PyObject, Python};
6#[allow(deprecated)]
7use crate::{IntoPy, ToPyObject};
8
9#[allow(deprecated)]
10impl<T> ToPyObject for [T]
11where
12 T: ToPyObject,
13{
14 fn to_object(&self, py: Python<'_>) -> PyObject {
15 let mut iter: impl Iterator> = self.iter().map(|e: &T| e.to_object(py));
16 let list: Bound<'_, PyList> = new_from_iter(py, &mut iter);
17 list.into()
18 }
19}
20
21#[allow(deprecated)]
22impl<T> ToPyObject for Vec<T>
23where
24 T: ToPyObject,
25{
26 fn to_object(&self, py: Python<'_>) -> PyObject {
27 self.as_slice().to_object(py)
28 }
29}
30
31#[allow(deprecated)]
32impl<T> IntoPy<PyObject> for Vec<T>
33where
34 T: IntoPy<PyObject>,
35{
36 fn into_py(self, py: Python<'_>) -> PyObject {
37 let mut iter: impl Iterator> = self.into_iter().map(|e: T| e.into_py(py));
38 let list: Bound<'_, PyList> = new_from_iter(py, &mut iter);
39 list.into()
40 }
41}
42
43impl<'py, T> IntoPyObject<'py> for Vec<T>
44where
45 T: IntoPyObject<'py>,
46{
47 type Target = PyAny;
48 type Output = Bound<'py, Self::Target>;
49 type Error = PyErr;
50
51 /// Turns [`Vec<u8>`] into [`PyBytes`], all other `T`s will be turned into a [`PyList`]
52 ///
53 /// [`PyBytes`]: crate::types::PyBytes
54 /// [`PyList`]: crate::types::PyList
55 #[inline]
56 fn into_pyobject(self, py: Python<'py>) -> Result<Self::Output, Self::Error> {
57 T::owned_sequence_into_pyobject(self, py, crate::conversion::private::Token)
58 }
59
60 #[cfg(feature = "experimental-inspect")]
61 fn type_output() -> TypeInfo {
62 TypeInfo::list_of(T::type_output())
63 }
64}
65
66impl<'a, 'py, T> IntoPyObject<'py> for &'a Vec<T>
67where
68 &'a T: IntoPyObject<'py>,
69 T: 'a, // MSRV
70{
71 type Target = PyAny;
72 type Output = Bound<'py, Self::Target>;
73 type Error = PyErr;
74
75 #[inline]
76 fn into_pyobject(self, py: Python<'py>) -> Result<Self::Output, Self::Error> {
77 // NB: we could actually not cast to `PyAny`, which would be nice for
78 // `&Vec<u8>`, but that'd be inconsistent with the `IntoPyObject` impl
79 // above which always returns a `PyAny` for `Vec<T>`.
80 self.as_slice().into_pyobject(py).map(op:Bound::into_any)
81 }
82
83 #[cfg(feature = "experimental-inspect")]
84 fn type_output() -> TypeInfo {
85 TypeInfo::list_of(<&T>::type_output())
86 }
87}
88
89#[cfg(test)]
90mod tests {
91 use crate::conversion::IntoPyObject;
92 use crate::types::{PyAnyMethods, PyBytes, PyBytesMethods, PyList};
93 use crate::Python;
94
95 #[test]
96 fn test_vec_intopyobject_impl() {
97 Python::with_gil(|py| {
98 let bytes: Vec<u8> = b"foobar".to_vec();
99 let obj = bytes.clone().into_pyobject(py).unwrap();
100 assert!(obj.is_instance_of::<PyBytes>());
101 let obj = obj.downcast_into::<PyBytes>().unwrap();
102 assert_eq!(obj.as_bytes(), &bytes);
103
104 let nums: Vec<u16> = vec![0, 1, 2, 3];
105 let obj = nums.into_pyobject(py).unwrap();
106 assert!(obj.is_instance_of::<PyList>());
107 });
108 }
109
110 #[test]
111 fn test_vec_reference_intopyobject_impl() {
112 Python::with_gil(|py| {
113 let bytes: Vec<u8> = b"foobar".to_vec();
114 let obj = (&bytes).into_pyobject(py).unwrap();
115 assert!(obj.is_instance_of::<PyBytes>());
116 let obj = obj.downcast_into::<PyBytes>().unwrap();
117 assert_eq!(obj.as_bytes(), &bytes);
118
119 let nums: Vec<u16> = vec![0, 1, 2, 3];
120 let obj = (&nums).into_pyobject(py).unwrap();
121 assert!(obj.is_instance_of::<PyList>());
122 });
123 }
124}
125