Blame external/pybind11/tests/pybind11_tests.h

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#pragma once
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#include <pybind11/pybind11.h>
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#if defined(_MSC_VER) && _MSC_VER < 1910
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// We get some really long type names here which causes MSVC 2015 to emit warnings
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#  pragma warning(disable: 4503) // warning C4503: decorated name length exceeded, name was truncated
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#endif
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namespace py = pybind11;
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using namespace pybind11::literals;
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class test_initializer {
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    using Initializer = void (*)(py::module &);
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public:
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    test_initializer(Initializer init);
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    test_initializer(const char *submodule_name, Initializer init);
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};
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#define TEST_SUBMODULE(name, variable)                   \
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    void test_submodule_##name(py::module &);            \
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    test_initializer name(#name, test_submodule_##name); \
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    void test_submodule_##name(py::module &variable)
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/// Dummy type which is not exported anywhere -- something to trigger a conversion error
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struct UnregisteredType { };
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/// A user-defined type which is exported and can be used by any test
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class UserType {
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public:
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    UserType() = default;
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    UserType(int i) : i(i) { }
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    int value() const { return i; }
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    void set(int set) { i = set; }
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private:
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    int i = -1;
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};
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/// Like UserType, but increments `value` on copy for quick reference vs. copy tests
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class IncType : public UserType {
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public:
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    using UserType::UserType;
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    IncType() = default;
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    IncType(const IncType &other) : IncType(other.value() + 1) { }
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    IncType(IncType &&) = delete;
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    IncType &operator=(const IncType &) = delete;
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    IncType &operator=(IncType &&) = delete;
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};
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/// Custom cast-only type that casts to a string "rvalue" or "lvalue" depending on the cast context.
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/// Used to test recursive casters (e.g. std::tuple, stl containers).
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struct RValueCaster {};
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NAMESPACE_BEGIN(pybind11)
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NAMESPACE_BEGIN(detail)
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template<> class type_caster<RValueCaster> {
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public:
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    PYBIND11_TYPE_CASTER(RValueCaster, _("RValueCaster"));
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    static handle cast(RValueCaster &&, return_value_policy, handle) { return py::str("rvalue").release(); }
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    static handle cast(const RValueCaster &, return_value_policy, handle) { return py::str("lvalue").release(); }
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};
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NAMESPACE_END(detail)
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NAMESPACE_END(pybind11)