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1 #pragma once
2 #include <pybind11/pybind11.h>
3 
4 #if defined(_MSC_VER) && _MSC_VER < 1910
5 // We get some really long type names here which causes MSVC 2015 to emit warnings
6 #  pragma warning(disable: 4503) // warning C4503: decorated name length exceeded, name was truncated
7 #endif
8 
9 namespace py = pybind11;
10 using namespace pybind11::literals;
11 
12 class test_initializer {
13     using Initializer = void (*)(py::module &);
14 
15 public:
16     test_initializer(Initializer init);
17     test_initializer(const char *submodule_name, Initializer init);
18 };
19 
20 #define TEST_SUBMODULE(name, variable)                   \
21     void test_submodule_##name(py::module &);            \
22     test_initializer name(#name, test_submodule_##name); \
23     void test_submodule_##name(py::module &variable)
24 
25 
26 /// Dummy type which is not exported anywhere -- something to trigger a conversion error
27 struct UnregisteredType { };
28 
29 /// A user-defined type which is exported and can be used by any test
30 class UserType {
31 public:
32     UserType() = default;
UserType(int i)33     UserType(int i) : i(i) { }
34 
value()35     int value() const { return i; }
set(int set)36     void set(int set) { i = set; }
37 
38 private:
39     int i = -1;
40 };
41 
42 /// Like UserType, but increments `value` on copy for quick reference vs. copy tests
43 class IncType : public UserType {
44 public:
45     using UserType::UserType;
46     IncType() = default;
IncType(const IncType & other)47     IncType(const IncType &other) : IncType(other.value() + 1) { }
48     IncType(IncType &&) = delete;
49     IncType &operator=(const IncType &) = delete;
50     IncType &operator=(IncType &&) = delete;
51 };
52 
53 /// Custom cast-only type that casts to a string "rvalue" or "lvalue" depending on the cast context.
54 /// Used to test recursive casters (e.g. std::tuple, stl containers).
55 struct RValueCaster {};
56 NAMESPACE_BEGIN(pybind11)
NAMESPACE_BEGIN(detail)57 NAMESPACE_BEGIN(detail)
58 template<> class type_caster<RValueCaster> {
59 public:
60     PYBIND11_TYPE_CASTER(RValueCaster, _("RValueCaster"));
61     static handle cast(RValueCaster &&, return_value_policy, handle) { return py::str("rvalue").release(); }
62     static handle cast(const RValueCaster &, return_value_policy, handle) { return py::str("lvalue").release(); }
63 };
64 NAMESPACE_END(detail)
65 NAMESPACE_END(pybind11)
66