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Handle none-type objects during casting #5

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Handle none-type objects during casting #5

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18 changes: 16 additions & 2 deletions include/swigbind11/swigbind11.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,10 @@ auto py_swig_cast(std::shared_ptr<T> src, std::string_view python_type_name) ->
public: \
PYBIND11_TYPE_CASTER(std::shared_ptr<cpp_type>, const_name(python_type)); \
bool load(handle src, bool /*implicit*/) { \
if (src.is_none()) { \
value = nullptr; \
return true; \
} \
try { \
value = swigbind11::swig_py_cast<cpp_type>(src, python_type); \
} catch (std::runtime_error & /*err*/) { \
Expand All @@ -146,7 +150,10 @@ auto py_swig_cast(std::shared_ptr<T> src, std::string_view python_type_name) ->
return true; \
} \
static handle cast(const std::shared_ptr<cpp_type>& src, return_value_policy /* policy */, handle /* parent */) { \
return swigbind11::py_swig_cast(src, python_type); \
if (src) { \
return swigbind11::py_swig_cast(src, python_type); \
} \
return none().release(); \
} \
}; \
} // namespace pybind11::detail
Expand All @@ -160,6 +167,10 @@ auto py_swig_cast(std::shared_ptr<T> src, std::string_view python_type_name) ->
\
public: \
bool load(handle src, bool /*implicit*/) { \
if (src.is_none()) { \
value = nullptr; \
return true; \
} \
try { \
value = swigbind11::swig_py_cast<cpp_type>(src, from_swig); \
} catch (std::runtime_error & /*err*/) { \
Expand All @@ -169,7 +180,10 @@ auto py_swig_cast(std::shared_ptr<T> src, std::string_view python_type_name) ->
} \
\
static handle cast(const std::shared_ptr<cpp_type>& src, return_value_policy /* policy */, handle /* parent */) { \
return swigbind11::py_swig_cast(src, to_swig); \
if (src) { \
return swigbind11::py_swig_cast(src, to_swig); \
} \
return none().release(); \
} \
}; \
} // namespace pybind11::detail