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pyEXP: add get_shared_ptr_capsule() to BiorthBasis and Coefs #174

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Merged
The9Cat merged 1 commit into from
Nov 14, 2025
Merged

pyEXP: add get_shared_ptr_capsule() to BiorthBasis and Coefs #174

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24 changes: 23 additions & 1 deletion pyEXP/BasisWrappers.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1561,7 +1561,29 @@ void BasisFactoryClasses(py::module &m)
Returns
-------
None
)", py::arg("coefs"));
)", py::arg("coefs"))
.def("get_shared_ptr_capsule", [](const std::shared_ptr<BasisClasses::BiorthBasis> &self) -> py::capsule {
return py::capsule(
new std::shared_ptr(self),
"BiorthBasis_shared_ptr",
[](void *v) { delete static_cast<std::shared_ptr<BasisClasses::BiorthBasis> *>(v); }
);
},
R"(
Get a capsule containing a shared pointer to the BiorthBasis instance.

Returns
-------
capsule: PyCapsule
A PyCapsule containing a shared pointer to the BiorthBasis instance with
the name "BiorthBasis_shared_ptr".

Notes
-----
This can be used to pass the BiorthBasis instance to non-Pybind11 C extensions
in a lifetime-safe manner.
)"
);

py::class_<BasisClasses::Cylindrical, std::shared_ptr<BasisClasses::Cylindrical>, PyCylindrical, BasisClasses::BiorthBasis>(m, "Cylindrical")
.def(py::init<const std::string&>(),
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24 changes: 23 additions & 1 deletion pyEXP/CoefWrappers.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1347,7 +1347,29 @@ void CoefficientClasses(py::module &m) {
--------
addcoef : add coefficient structures to an existing coefficieint container
)",
py::arg("coef"), py::arg("name")="");
py::arg("coef"), py::arg("name")="")
.def("get_shared_ptr_capsule", [](const std::shared_ptr<CoefClasses::Coefs> &self) -> py::capsule {
return py::capsule(
new std::shared_ptr(self),
"Coefs_shared_ptr",
[](void *v) { delete static_cast<std::shared_ptr<CoefClasses::Coefs> *>(v); }
);
},
R"(
Get a capsule containing a shared pointer to the Coefs instance.

Returns
-------
capsule: PyCapsule
A PyCapsule containing a shared pointer to the Coefs instance with
the name "Coefs_shared_ptr".

Notes
-----
This can be used to pass the Coefs instance to non-Pybind11 C extensions
in a lifetime-safe manner.
)"
);

py::class_<CoefClasses::SphCoefs, std::shared_ptr<CoefClasses::SphCoefs>, PySphCoefs, CoefClasses::Coefs>
(m, "SphCoefs", "Container for spherical coefficients")
Expand Down