111986Sandreas.sandberg@arm.com/*
211986Sandreas.sandberg@arm.com    tests/test_methods_and_attributes.cpp -- constructors, deconstructors, attribute access,
311986Sandreas.sandberg@arm.com    __str__, argument and return value conventions
411986Sandreas.sandberg@arm.com
511986Sandreas.sandberg@arm.com    Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
611986Sandreas.sandberg@arm.com
711986Sandreas.sandberg@arm.com    All rights reserved. Use of this source code is governed by a
811986Sandreas.sandberg@arm.com    BSD-style license that can be found in the LICENSE file.
911986Sandreas.sandberg@arm.com*/
1011986Sandreas.sandberg@arm.com
1111986Sandreas.sandberg@arm.com#include "pybind11_tests.h"
1211986Sandreas.sandberg@arm.com#include "constructor_stats.h"
1311986Sandreas.sandberg@arm.com
1414299Sbbruce@ucdavis.edu#if !defined(PYBIND11_OVERLOAD_CAST)
1514299Sbbruce@ucdavis.edutemplate <typename... Args>
1614299Sbbruce@ucdavis.eduusing overload_cast_ = pybind11::detail::overload_cast_impl<Args...>;
1714299Sbbruce@ucdavis.edu#endif
1814299Sbbruce@ucdavis.edu
1911986Sandreas.sandberg@arm.comclass ExampleMandA {
2011986Sandreas.sandberg@arm.compublic:
2111986Sandreas.sandberg@arm.com    ExampleMandA() { print_default_created(this); }
2211986Sandreas.sandberg@arm.com    ExampleMandA(int value) : value(value) { print_created(this, value); }
2311986Sandreas.sandberg@arm.com    ExampleMandA(const ExampleMandA &e) : value(e.value) { print_copy_created(this); }
2411986Sandreas.sandberg@arm.com    ExampleMandA(ExampleMandA &&e) : value(e.value) { print_move_created(this); }
2511986Sandreas.sandberg@arm.com    ~ExampleMandA() { print_destroyed(this); }
2611986Sandreas.sandberg@arm.com
2711986Sandreas.sandberg@arm.com    std::string toString() {
2811986Sandreas.sandberg@arm.com        return "ExampleMandA[value=" + std::to_string(value) + "]";
2911986Sandreas.sandberg@arm.com    }
3011986Sandreas.sandberg@arm.com
3111986Sandreas.sandberg@arm.com    void operator=(const ExampleMandA &e) { print_copy_assigned(this); value = e.value; }
3211986Sandreas.sandberg@arm.com    void operator=(ExampleMandA &&e) { print_move_assigned(this); value = e.value; }
3311986Sandreas.sandberg@arm.com
3412391Sjason@lowepower.com    void add1(ExampleMandA other) { value += other.value; }         // passing by value
3512391Sjason@lowepower.com    void add2(ExampleMandA &other) { value += other.value; }        // passing by reference
3612391Sjason@lowepower.com    void add3(const ExampleMandA &other) { value += other.value; }  // passing by const reference
3712391Sjason@lowepower.com    void add4(ExampleMandA *other) { value += other->value; }       // passing by pointer
3812391Sjason@lowepower.com    void add5(const ExampleMandA *other) { value += other->value; } // passing by const pointer
3911986Sandreas.sandberg@arm.com
4012391Sjason@lowepower.com    void add6(int other) { value += other; }                        // passing by value
4112391Sjason@lowepower.com    void add7(int &other) { value += other; }                       // passing by reference
4212391Sjason@lowepower.com    void add8(const int &other) { value += other; }                 // passing by const reference
4312391Sjason@lowepower.com    void add9(int *other) { value += *other; }                      // passing by pointer
4412391Sjason@lowepower.com    void add10(const int *other) { value += *other; }               // passing by const pointer
4511986Sandreas.sandberg@arm.com
4612391Sjason@lowepower.com    ExampleMandA self1() { return *this; }                          // return by value
4712391Sjason@lowepower.com    ExampleMandA &self2() { return *this; }                         // return by reference
4812391Sjason@lowepower.com    const ExampleMandA &self3() { return *this; }                   // return by const reference
4912391Sjason@lowepower.com    ExampleMandA *self4() { return this; }                          // return by pointer
5012391Sjason@lowepower.com    const ExampleMandA *self5() { return this; }                    // return by const pointer
5111986Sandreas.sandberg@arm.com
5212391Sjason@lowepower.com    int internal1() { return value; }                               // return by value
5312391Sjason@lowepower.com    int &internal2() { return value; }                              // return by reference
5412391Sjason@lowepower.com    const int &internal3() { return value; }                        // return by const reference
5512391Sjason@lowepower.com    int *internal4() { return &value; }                             // return by pointer
5612391Sjason@lowepower.com    const int *internal5() { return &value; }                       // return by const pointer
5711986Sandreas.sandberg@arm.com
5812391Sjason@lowepower.com    py::str overloaded()             { return "()"; }
5912391Sjason@lowepower.com    py::str overloaded(int)          { return "(int)"; }
6012037Sandreas.sandberg@arm.com    py::str overloaded(int, float)   { return "(int, float)"; }
6112037Sandreas.sandberg@arm.com    py::str overloaded(float, int)   { return "(float, int)"; }
6212037Sandreas.sandberg@arm.com    py::str overloaded(int, int)     { return "(int, int)"; }
6312037Sandreas.sandberg@arm.com    py::str overloaded(float, float) { return "(float, float)"; }
6412391Sjason@lowepower.com    py::str overloaded(int)          const { return "(int) const"; }
6512037Sandreas.sandberg@arm.com    py::str overloaded(int, float)   const { return "(int, float) const"; }
6612037Sandreas.sandberg@arm.com    py::str overloaded(float, int)   const { return "(float, int) const"; }
6712037Sandreas.sandberg@arm.com    py::str overloaded(int, int)     const { return "(int, int) const"; }
6812037Sandreas.sandberg@arm.com    py::str overloaded(float, float) const { return "(float, float) const"; }
6911986Sandreas.sandberg@arm.com
7012391Sjason@lowepower.com    static py::str overloaded(float) { return "static float"; }
7112391Sjason@lowepower.com
7211986Sandreas.sandberg@arm.com    int value = 0;
7311986Sandreas.sandberg@arm.com};
7411986Sandreas.sandberg@arm.com
7511986Sandreas.sandberg@arm.comstruct TestProperties {
7611986Sandreas.sandberg@arm.com    int value = 1;
7711986Sandreas.sandberg@arm.com    static int static_value;
7811986Sandreas.sandberg@arm.com
7911986Sandreas.sandberg@arm.com    int get() const { return value; }
8011986Sandreas.sandberg@arm.com    void set(int v) { value = v; }
8111986Sandreas.sandberg@arm.com
8211986Sandreas.sandberg@arm.com    static int static_get() { return static_value; }
8311986Sandreas.sandberg@arm.com    static void static_set(int v) { static_value = v; }
8411986Sandreas.sandberg@arm.com};
8511986Sandreas.sandberg@arm.comint TestProperties::static_value = 1;
8611986Sandreas.sandberg@arm.com
8712391Sjason@lowepower.comstruct TestPropertiesOverride : TestProperties {
8812391Sjason@lowepower.com    int value = 99;
8912391Sjason@lowepower.com    static int static_value;
9012391Sjason@lowepower.com};
9112391Sjason@lowepower.comint TestPropertiesOverride::static_value = 99;
9211986Sandreas.sandberg@arm.com
9311986Sandreas.sandberg@arm.comstruct TestPropRVP {
9412391Sjason@lowepower.com    UserType v1{1};
9512391Sjason@lowepower.com    UserType v2{1};
9612391Sjason@lowepower.com    static UserType sv1;
9712391Sjason@lowepower.com    static UserType sv2;
9811986Sandreas.sandberg@arm.com
9912391Sjason@lowepower.com    const UserType &get1() const { return v1; }
10012391Sjason@lowepower.com    const UserType &get2() const { return v2; }
10112391Sjason@lowepower.com    UserType get_rvalue() const { return v2; }
10212391Sjason@lowepower.com    void set1(int v) { v1.set(v); }
10312391Sjason@lowepower.com    void set2(int v) { v2.set(v); }
10411986Sandreas.sandberg@arm.com};
10512391Sjason@lowepower.comUserType TestPropRVP::sv1(1);
10612391Sjason@lowepower.comUserType TestPropRVP::sv2(1);
10711986Sandreas.sandberg@arm.com
10812037Sandreas.sandberg@arm.com// py::arg/py::arg_v testing: these arguments just record their argument when invoked
10912037Sandreas.sandberg@arm.comclass ArgInspector1 { public: std::string arg = "(default arg inspector 1)"; };
11012037Sandreas.sandberg@arm.comclass ArgInspector2 { public: std::string arg = "(default arg inspector 2)"; };
11112037Sandreas.sandberg@arm.comclass ArgAlwaysConverts { };
11212037Sandreas.sandberg@arm.comnamespace pybind11 { namespace detail {
11312037Sandreas.sandberg@arm.comtemplate <> struct type_caster<ArgInspector1> {
11412037Sandreas.sandberg@arm.compublic:
11512037Sandreas.sandberg@arm.com    PYBIND11_TYPE_CASTER(ArgInspector1, _("ArgInspector1"));
11612037Sandreas.sandberg@arm.com
11712037Sandreas.sandberg@arm.com    bool load(handle src, bool convert) {
11812037Sandreas.sandberg@arm.com        value.arg = "loading ArgInspector1 argument " +
11912037Sandreas.sandberg@arm.com            std::string(convert ? "WITH" : "WITHOUT") + " conversion allowed.  "
12012037Sandreas.sandberg@arm.com            "Argument value = " + (std::string) str(src);
12112037Sandreas.sandberg@arm.com        return true;
12212037Sandreas.sandberg@arm.com    }
12312037Sandreas.sandberg@arm.com
12412037Sandreas.sandberg@arm.com    static handle cast(const ArgInspector1 &src, return_value_policy, handle) {
12512037Sandreas.sandberg@arm.com        return str(src.arg).release();
12612037Sandreas.sandberg@arm.com    }
12712037Sandreas.sandberg@arm.com};
12812037Sandreas.sandberg@arm.comtemplate <> struct type_caster<ArgInspector2> {
12912037Sandreas.sandberg@arm.compublic:
13012037Sandreas.sandberg@arm.com    PYBIND11_TYPE_CASTER(ArgInspector2, _("ArgInspector2"));
13112037Sandreas.sandberg@arm.com
13212037Sandreas.sandberg@arm.com    bool load(handle src, bool convert) {
13312037Sandreas.sandberg@arm.com        value.arg = "loading ArgInspector2 argument " +
13412037Sandreas.sandberg@arm.com            std::string(convert ? "WITH" : "WITHOUT") + " conversion allowed.  "
13512037Sandreas.sandberg@arm.com            "Argument value = " + (std::string) str(src);
13612037Sandreas.sandberg@arm.com        return true;
13712037Sandreas.sandberg@arm.com    }
13812037Sandreas.sandberg@arm.com
13912037Sandreas.sandberg@arm.com    static handle cast(const ArgInspector2 &src, return_value_policy, handle) {
14012037Sandreas.sandberg@arm.com        return str(src.arg).release();
14112037Sandreas.sandberg@arm.com    }
14212037Sandreas.sandberg@arm.com};
14312037Sandreas.sandberg@arm.comtemplate <> struct type_caster<ArgAlwaysConverts> {
14412037Sandreas.sandberg@arm.compublic:
14512037Sandreas.sandberg@arm.com    PYBIND11_TYPE_CASTER(ArgAlwaysConverts, _("ArgAlwaysConverts"));
14612037Sandreas.sandberg@arm.com
14712037Sandreas.sandberg@arm.com    bool load(handle, bool convert) {
14812037Sandreas.sandberg@arm.com        return convert;
14912037Sandreas.sandberg@arm.com    }
15012037Sandreas.sandberg@arm.com
15112037Sandreas.sandberg@arm.com    static handle cast(const ArgAlwaysConverts &, return_value_policy, handle) {
15212391Sjason@lowepower.com        return py::none().release();
15312037Sandreas.sandberg@arm.com    }
15412037Sandreas.sandberg@arm.com};
15512037Sandreas.sandberg@arm.com}}
15612037Sandreas.sandberg@arm.com
15712391Sjason@lowepower.com// test_custom_caster_destruction
15812391Sjason@lowepower.comclass DestructionTester {
15912391Sjason@lowepower.compublic:
16012391Sjason@lowepower.com    DestructionTester() { print_default_created(this); }
16112391Sjason@lowepower.com    ~DestructionTester() { print_destroyed(this); }
16212391Sjason@lowepower.com    DestructionTester(const DestructionTester &) { print_copy_created(this); }
16312391Sjason@lowepower.com    DestructionTester(DestructionTester &&) { print_move_created(this); }
16412391Sjason@lowepower.com    DestructionTester &operator=(const DestructionTester &) { print_copy_assigned(this); return *this; }
16512391Sjason@lowepower.com    DestructionTester &operator=(DestructionTester &&) { print_move_assigned(this); return *this; }
16612391Sjason@lowepower.com};
16712391Sjason@lowepower.comnamespace pybind11 { namespace detail {
16812391Sjason@lowepower.comtemplate <> struct type_caster<DestructionTester> {
16912391Sjason@lowepower.com    PYBIND11_TYPE_CASTER(DestructionTester, _("DestructionTester"));
17012391Sjason@lowepower.com    bool load(handle, bool) { return true; }
17112037Sandreas.sandberg@arm.com
17212391Sjason@lowepower.com    static handle cast(const DestructionTester &, return_value_policy, handle) {
17312391Sjason@lowepower.com        return py::bool_(true).release();
17412391Sjason@lowepower.com    }
17512391Sjason@lowepower.com};
17612391Sjason@lowepower.com}}
17712391Sjason@lowepower.com
17812391Sjason@lowepower.com// Test None-allowed py::arg argument policy
17912391Sjason@lowepower.comclass NoneTester { public: int answer = 42; };
18012391Sjason@lowepower.comint none1(const NoneTester &obj) { return obj.answer; }
18112391Sjason@lowepower.comint none2(NoneTester *obj) { return obj ? obj->answer : -1; }
18212391Sjason@lowepower.comint none3(std::shared_ptr<NoneTester> &obj) { return obj ? obj->answer : -1; }
18312391Sjason@lowepower.comint none4(std::shared_ptr<NoneTester> *obj) { return obj && *obj ? (*obj)->answer : -1; }
18412391Sjason@lowepower.comint none5(std::shared_ptr<NoneTester> obj) { return obj ? obj->answer : -1; }
18512391Sjason@lowepower.com
18612391Sjason@lowepower.comstruct StrIssue {
18712391Sjason@lowepower.com    int val = -1;
18812391Sjason@lowepower.com
18912391Sjason@lowepower.com    StrIssue() = default;
19012391Sjason@lowepower.com    StrIssue(int i) : val{i} {}
19112391Sjason@lowepower.com};
19212391Sjason@lowepower.com
19312391Sjason@lowepower.com// Issues #854, #910: incompatible function args when member function/pointer is in unregistered base class
19412391Sjason@lowepower.comclass UnregisteredBase {
19512391Sjason@lowepower.compublic:
19612391Sjason@lowepower.com    void do_nothing() const {}
19712391Sjason@lowepower.com    void increase_value() { rw_value++; ro_value += 0.25; }
19812391Sjason@lowepower.com    void set_int(int v) { rw_value = v; }
19912391Sjason@lowepower.com    int get_int() const { return rw_value; }
20012391Sjason@lowepower.com    double get_double() const { return ro_value; }
20112391Sjason@lowepower.com    int rw_value = 42;
20212391Sjason@lowepower.com    double ro_value = 1.25;
20312391Sjason@lowepower.com};
20412391Sjason@lowepower.comclass RegisteredDerived : public UnregisteredBase {
20512391Sjason@lowepower.compublic:
20612391Sjason@lowepower.com    using UnregisteredBase::UnregisteredBase;
20712391Sjason@lowepower.com    double sum() const { return rw_value + ro_value; }
20812391Sjason@lowepower.com};
20912391Sjason@lowepower.com
21012391Sjason@lowepower.comTEST_SUBMODULE(methods_and_attributes, m) {
21112391Sjason@lowepower.com    // test_methods_and_attributes
21212391Sjason@lowepower.com    py::class_<ExampleMandA> emna(m, "ExampleMandA");
21312391Sjason@lowepower.com    emna.def(py::init<>())
21411986Sandreas.sandberg@arm.com        .def(py::init<int>())
21511986Sandreas.sandberg@arm.com        .def(py::init<const ExampleMandA&>())
21611986Sandreas.sandberg@arm.com        .def("add1", &ExampleMandA::add1)
21711986Sandreas.sandberg@arm.com        .def("add2", &ExampleMandA::add2)
21811986Sandreas.sandberg@arm.com        .def("add3", &ExampleMandA::add3)
21911986Sandreas.sandberg@arm.com        .def("add4", &ExampleMandA::add4)
22011986Sandreas.sandberg@arm.com        .def("add5", &ExampleMandA::add5)
22111986Sandreas.sandberg@arm.com        .def("add6", &ExampleMandA::add6)
22211986Sandreas.sandberg@arm.com        .def("add7", &ExampleMandA::add7)
22311986Sandreas.sandberg@arm.com        .def("add8", &ExampleMandA::add8)
22411986Sandreas.sandberg@arm.com        .def("add9", &ExampleMandA::add9)
22511986Sandreas.sandberg@arm.com        .def("add10", &ExampleMandA::add10)
22611986Sandreas.sandberg@arm.com        .def("self1", &ExampleMandA::self1)
22711986Sandreas.sandberg@arm.com        .def("self2", &ExampleMandA::self2)
22811986Sandreas.sandberg@arm.com        .def("self3", &ExampleMandA::self3)
22911986Sandreas.sandberg@arm.com        .def("self4", &ExampleMandA::self4)
23011986Sandreas.sandberg@arm.com        .def("self5", &ExampleMandA::self5)
23111986Sandreas.sandberg@arm.com        .def("internal1", &ExampleMandA::internal1)
23211986Sandreas.sandberg@arm.com        .def("internal2", &ExampleMandA::internal2)
23311986Sandreas.sandberg@arm.com        .def("internal3", &ExampleMandA::internal3)
23411986Sandreas.sandberg@arm.com        .def("internal4", &ExampleMandA::internal4)
23511986Sandreas.sandberg@arm.com        .def("internal5", &ExampleMandA::internal5)
23611986Sandreas.sandberg@arm.com#if defined(PYBIND11_OVERLOAD_CAST)
23712391Sjason@lowepower.com        .def("overloaded", py::overload_cast<>(&ExampleMandA::overloaded))
23812391Sjason@lowepower.com        .def("overloaded", py::overload_cast<int>(&ExampleMandA::overloaded))
23912037Sandreas.sandberg@arm.com        .def("overloaded", py::overload_cast<int,   float>(&ExampleMandA::overloaded))
24012037Sandreas.sandberg@arm.com        .def("overloaded", py::overload_cast<float,   int>(&ExampleMandA::overloaded))
24112037Sandreas.sandberg@arm.com        .def("overloaded", py::overload_cast<int,     int>(&ExampleMandA::overloaded))
24212037Sandreas.sandberg@arm.com        .def("overloaded", py::overload_cast<float, float>(&ExampleMandA::overloaded))
24312037Sandreas.sandberg@arm.com        .def("overloaded_float", py::overload_cast<float, float>(&ExampleMandA::overloaded))
24412391Sjason@lowepower.com        .def("overloaded_const", py::overload_cast<int         >(&ExampleMandA::overloaded, py::const_))
24512037Sandreas.sandberg@arm.com        .def("overloaded_const", py::overload_cast<int,   float>(&ExampleMandA::overloaded, py::const_))
24612037Sandreas.sandberg@arm.com        .def("overloaded_const", py::overload_cast<float,   int>(&ExampleMandA::overloaded, py::const_))
24712037Sandreas.sandberg@arm.com        .def("overloaded_const", py::overload_cast<int,     int>(&ExampleMandA::overloaded, py::const_))
24812037Sandreas.sandberg@arm.com        .def("overloaded_const", py::overload_cast<float, float>(&ExampleMandA::overloaded, py::const_))
24911986Sandreas.sandberg@arm.com#else
25014299Sbbruce@ucdavis.edu        // Use both the traditional static_cast method and the C++11 compatible overload_cast_
25114299Sbbruce@ucdavis.edu        .def("overloaded", overload_cast_<>()(&ExampleMandA::overloaded))
25214299Sbbruce@ucdavis.edu        .def("overloaded", overload_cast_<int>()(&ExampleMandA::overloaded))
25314299Sbbruce@ucdavis.edu        .def("overloaded", overload_cast_<int,   float>()(&ExampleMandA::overloaded))
25412037Sandreas.sandberg@arm.com        .def("overloaded", static_cast<py::str (ExampleMandA::*)(float,   int)>(&ExampleMandA::overloaded))
25512037Sandreas.sandberg@arm.com        .def("overloaded", static_cast<py::str (ExampleMandA::*)(int,     int)>(&ExampleMandA::overloaded))
25612037Sandreas.sandberg@arm.com        .def("overloaded", static_cast<py::str (ExampleMandA::*)(float, float)>(&ExampleMandA::overloaded))
25714299Sbbruce@ucdavis.edu        .def("overloaded_float", overload_cast_<float, float>()(&ExampleMandA::overloaded))
25814299Sbbruce@ucdavis.edu        .def("overloaded_const", overload_cast_<int         >()(&ExampleMandA::overloaded, py::const_))
25914299Sbbruce@ucdavis.edu        .def("overloaded_const", overload_cast_<int,   float>()(&ExampleMandA::overloaded, py::const_))
26012037Sandreas.sandberg@arm.com        .def("overloaded_const", static_cast<py::str (ExampleMandA::*)(float,   int) const>(&ExampleMandA::overloaded))
26112037Sandreas.sandberg@arm.com        .def("overloaded_const", static_cast<py::str (ExampleMandA::*)(int,     int) const>(&ExampleMandA::overloaded))
26212037Sandreas.sandberg@arm.com        .def("overloaded_const", static_cast<py::str (ExampleMandA::*)(float, float) const>(&ExampleMandA::overloaded))
26311986Sandreas.sandberg@arm.com#endif
26412391Sjason@lowepower.com        // test_no_mixed_overloads
26512391Sjason@lowepower.com        // Raise error if trying to mix static/non-static overloads on the same name:
26612391Sjason@lowepower.com        .def_static("add_mixed_overloads1", []() {
26712391Sjason@lowepower.com            auto emna = py::reinterpret_borrow<py::class_<ExampleMandA>>(py::module::import("pybind11_tests.methods_and_attributes").attr("ExampleMandA"));
26812391Sjason@lowepower.com            emna.def       ("overload_mixed1", static_cast<py::str (ExampleMandA::*)(int, int)>(&ExampleMandA::overloaded))
26912391Sjason@lowepower.com                .def_static("overload_mixed1", static_cast<py::str (              *)(float   )>(&ExampleMandA::overloaded));
27012391Sjason@lowepower.com        })
27112391Sjason@lowepower.com        .def_static("add_mixed_overloads2", []() {
27212391Sjason@lowepower.com            auto emna = py::reinterpret_borrow<py::class_<ExampleMandA>>(py::module::import("pybind11_tests.methods_and_attributes").attr("ExampleMandA"));
27312391Sjason@lowepower.com            emna.def_static("overload_mixed2", static_cast<py::str (              *)(float   )>(&ExampleMandA::overloaded))
27412391Sjason@lowepower.com                .def       ("overload_mixed2", static_cast<py::str (ExampleMandA::*)(int, int)>(&ExampleMandA::overloaded));
27512391Sjason@lowepower.com        })
27611986Sandreas.sandberg@arm.com        .def("__str__", &ExampleMandA::toString)
27712037Sandreas.sandberg@arm.com        .def_readwrite("value", &ExampleMandA::value);
27811986Sandreas.sandberg@arm.com
27912391Sjason@lowepower.com    // test_copy_method
28012391Sjason@lowepower.com    // Issue #443: can't call copied methods in Python 3
28112391Sjason@lowepower.com    emna.attr("add2b") = emna.attr("add2");
28212391Sjason@lowepower.com
28312391Sjason@lowepower.com    // test_properties, test_static_properties, test_static_cls
28411986Sandreas.sandberg@arm.com    py::class_<TestProperties>(m, "TestProperties")
28511986Sandreas.sandberg@arm.com        .def(py::init<>())
28611986Sandreas.sandberg@arm.com        .def_readonly("def_readonly", &TestProperties::value)
28711986Sandreas.sandberg@arm.com        .def_readwrite("def_readwrite", &TestProperties::value)
28814299Sbbruce@ucdavis.edu        .def_property("def_writeonly", nullptr,
28914299Sbbruce@ucdavis.edu                      [](TestProperties& s,int v) { s.value = v; } )
29014299Sbbruce@ucdavis.edu        .def_property("def_property_writeonly", nullptr, &TestProperties::set)
29111986Sandreas.sandberg@arm.com        .def_property_readonly("def_property_readonly", &TestProperties::get)
29211986Sandreas.sandberg@arm.com        .def_property("def_property", &TestProperties::get, &TestProperties::set)
29314299Sbbruce@ucdavis.edu        .def_property("def_property_impossible", nullptr, nullptr)
29411986Sandreas.sandberg@arm.com        .def_readonly_static("def_readonly_static", &TestProperties::static_value)
29511986Sandreas.sandberg@arm.com        .def_readwrite_static("def_readwrite_static", &TestProperties::static_value)
29614299Sbbruce@ucdavis.edu        .def_property_static("def_writeonly_static", nullptr,
29714299Sbbruce@ucdavis.edu                             [](py::object, int v) { TestProperties::static_value = v; })
29811986Sandreas.sandberg@arm.com        .def_property_readonly_static("def_property_readonly_static",
29911986Sandreas.sandberg@arm.com                                      [](py::object) { return TestProperties::static_get(); })
30014299Sbbruce@ucdavis.edu        .def_property_static("def_property_writeonly_static", nullptr,
30114299Sbbruce@ucdavis.edu                             [](py::object, int v) { return TestProperties::static_set(v); })
30211986Sandreas.sandberg@arm.com        .def_property_static("def_property_static",
30311986Sandreas.sandberg@arm.com                             [](py::object) { return TestProperties::static_get(); },
30412037Sandreas.sandberg@arm.com                             [](py::object, int v) { TestProperties::static_set(v); })
30512037Sandreas.sandberg@arm.com        .def_property_static("static_cls",
30612037Sandreas.sandberg@arm.com                             [](py::object cls) { return cls; },
30712037Sandreas.sandberg@arm.com                             [](py::object cls, py::function f) { f(cls); });
30811986Sandreas.sandberg@arm.com
30912391Sjason@lowepower.com    py::class_<TestPropertiesOverride, TestProperties>(m, "TestPropertiesOverride")
31012391Sjason@lowepower.com        .def(py::init<>())
31112391Sjason@lowepower.com        .def_readonly("def_readonly", &TestPropertiesOverride::value)
31212391Sjason@lowepower.com        .def_readonly_static("def_readonly_static", &TestPropertiesOverride::static_value);
31311986Sandreas.sandberg@arm.com
31412391Sjason@lowepower.com    auto static_get1 = [](py::object) -> const UserType & { return TestPropRVP::sv1; };
31512391Sjason@lowepower.com    auto static_get2 = [](py::object) -> const UserType & { return TestPropRVP::sv2; };
31612391Sjason@lowepower.com    auto static_set1 = [](py::object, int v) { TestPropRVP::sv1.set(v); };
31712391Sjason@lowepower.com    auto static_set2 = [](py::object, int v) { TestPropRVP::sv2.set(v); };
31811986Sandreas.sandberg@arm.com    auto rvp_copy = py::return_value_policy::copy;
31911986Sandreas.sandberg@arm.com
32012391Sjason@lowepower.com    // test_property_return_value_policies
32111986Sandreas.sandberg@arm.com    py::class_<TestPropRVP>(m, "TestPropRVP")
32211986Sandreas.sandberg@arm.com        .def(py::init<>())
32311986Sandreas.sandberg@arm.com        .def_property_readonly("ro_ref", &TestPropRVP::get1)
32411986Sandreas.sandberg@arm.com        .def_property_readonly("ro_copy", &TestPropRVP::get2, rvp_copy)
32511986Sandreas.sandberg@arm.com        .def_property_readonly("ro_func", py::cpp_function(&TestPropRVP::get2, rvp_copy))
32611986Sandreas.sandberg@arm.com        .def_property("rw_ref", &TestPropRVP::get1, &TestPropRVP::set1)
32711986Sandreas.sandberg@arm.com        .def_property("rw_copy", &TestPropRVP::get2, &TestPropRVP::set2, rvp_copy)
32811986Sandreas.sandberg@arm.com        .def_property("rw_func", py::cpp_function(&TestPropRVP::get2, rvp_copy), &TestPropRVP::set2)
32911986Sandreas.sandberg@arm.com        .def_property_readonly_static("static_ro_ref", static_get1)
33011986Sandreas.sandberg@arm.com        .def_property_readonly_static("static_ro_copy", static_get2, rvp_copy)
33111986Sandreas.sandberg@arm.com        .def_property_readonly_static("static_ro_func", py::cpp_function(static_get2, rvp_copy))
33211986Sandreas.sandberg@arm.com        .def_property_static("static_rw_ref", static_get1, static_set1)
33311986Sandreas.sandberg@arm.com        .def_property_static("static_rw_copy", static_get2, static_set2, rvp_copy)
33411986Sandreas.sandberg@arm.com        .def_property_static("static_rw_func", py::cpp_function(static_get2, rvp_copy), static_set2)
33512391Sjason@lowepower.com        // test_property_rvalue_policy
33611986Sandreas.sandberg@arm.com        .def_property_readonly("rvalue", &TestPropRVP::get_rvalue)
33712391Sjason@lowepower.com        .def_property_readonly_static("static_rvalue", [](py::object) { return UserType(1); });
33811986Sandreas.sandberg@arm.com
33912391Sjason@lowepower.com    // test_metaclass_override
34012037Sandreas.sandberg@arm.com    struct MetaclassOverride { };
34112037Sandreas.sandberg@arm.com    py::class_<MetaclassOverride>(m, "MetaclassOverride", py::metaclass((PyObject *) &PyType_Type))
34212037Sandreas.sandberg@arm.com        .def_property_readonly_static("readonly", [](py::object) { return 1; });
34312037Sandreas.sandberg@arm.com
34412037Sandreas.sandberg@arm.com#if !defined(PYPY_VERSION)
34512391Sjason@lowepower.com    // test_dynamic_attributes
34612391Sjason@lowepower.com    class DynamicClass {
34712391Sjason@lowepower.com    public:
34812391Sjason@lowepower.com        DynamicClass() { print_default_created(this); }
34912391Sjason@lowepower.com        ~DynamicClass() { print_destroyed(this); }
35012391Sjason@lowepower.com    };
35111986Sandreas.sandberg@arm.com    py::class_<DynamicClass>(m, "DynamicClass", py::dynamic_attr())
35211986Sandreas.sandberg@arm.com        .def(py::init());
35311986Sandreas.sandberg@arm.com
35412391Sjason@lowepower.com    class CppDerivedDynamicClass : public DynamicClass { };
35511986Sandreas.sandberg@arm.com    py::class_<CppDerivedDynamicClass, DynamicClass>(m, "CppDerivedDynamicClass")
35611986Sandreas.sandberg@arm.com        .def(py::init());
35712037Sandreas.sandberg@arm.com#endif
35812037Sandreas.sandberg@arm.com
35912391Sjason@lowepower.com    // test_noconvert_args
36012391Sjason@lowepower.com    //
36112037Sandreas.sandberg@arm.com    // Test converting.  The ArgAlwaysConverts is just there to make the first no-conversion pass
36212037Sandreas.sandberg@arm.com    // fail so that our call always ends up happening via the second dispatch (the one that allows
36312037Sandreas.sandberg@arm.com    // some conversion).
36412037Sandreas.sandberg@arm.com    class ArgInspector {
36512037Sandreas.sandberg@arm.com    public:
36612037Sandreas.sandberg@arm.com        ArgInspector1 f(ArgInspector1 a, ArgAlwaysConverts) { return a; }
36712037Sandreas.sandberg@arm.com        std::string g(ArgInspector1 a, const ArgInspector1 &b, int c, ArgInspector2 *d, ArgAlwaysConverts) {
36812037Sandreas.sandberg@arm.com            return a.arg + "\n" + b.arg + "\n" + std::to_string(c) + "\n" + d->arg;
36912037Sandreas.sandberg@arm.com        }
37012037Sandreas.sandberg@arm.com        static ArgInspector2 h(ArgInspector2 a, ArgAlwaysConverts) { return a; }
37112037Sandreas.sandberg@arm.com    };
37212037Sandreas.sandberg@arm.com    py::class_<ArgInspector>(m, "ArgInspector")
37312037Sandreas.sandberg@arm.com        .def(py::init<>())
37412037Sandreas.sandberg@arm.com        .def("f", &ArgInspector::f, py::arg(), py::arg() = ArgAlwaysConverts())
37512037Sandreas.sandberg@arm.com        .def("g", &ArgInspector::g, "a"_a.noconvert(), "b"_a, "c"_a.noconvert()=13, "d"_a=ArgInspector2(), py::arg() = ArgAlwaysConverts())
37612037Sandreas.sandberg@arm.com        .def_static("h", &ArgInspector::h, py::arg().noconvert(), py::arg() = ArgAlwaysConverts())
37712037Sandreas.sandberg@arm.com        ;
37812037Sandreas.sandberg@arm.com    m.def("arg_inspect_func", [](ArgInspector2 a, ArgInspector1 b, ArgAlwaysConverts) { return a.arg + "\n" + b.arg; },
37912037Sandreas.sandberg@arm.com            py::arg().noconvert(false), py::arg_v(nullptr, ArgInspector1()).noconvert(true), py::arg() = ArgAlwaysConverts());
38012037Sandreas.sandberg@arm.com
38112037Sandreas.sandberg@arm.com    m.def("floats_preferred", [](double f) { return 0.5 * f; }, py::arg("f"));
38212037Sandreas.sandberg@arm.com    m.def("floats_only", [](double f) { return 0.5 * f; }, py::arg("f").noconvert());
38312391Sjason@lowepower.com    m.def("ints_preferred", [](int i) { return i / 2; }, py::arg("i"));
38412391Sjason@lowepower.com    m.def("ints_only", [](int i) { return i / 2; }, py::arg("i").noconvert());
38512037Sandreas.sandberg@arm.com
38612391Sjason@lowepower.com    // test_bad_arg_default
38712391Sjason@lowepower.com    // Issue/PR #648: bad arg default debugging output
38812037Sandreas.sandberg@arm.com#if !defined(NDEBUG)
38912037Sandreas.sandberg@arm.com    m.attr("debug_enabled") = true;
39012037Sandreas.sandberg@arm.com#else
39112037Sandreas.sandberg@arm.com    m.attr("debug_enabled") = false;
39212037Sandreas.sandberg@arm.com#endif
39312037Sandreas.sandberg@arm.com    m.def("bad_arg_def_named", []{
39412391Sjason@lowepower.com        auto m = py::module::import("pybind11_tests");
39512391Sjason@lowepower.com        m.def("should_fail", [](int, UnregisteredType) {}, py::arg(), py::arg("a") = UnregisteredType());
39612037Sandreas.sandberg@arm.com    });
39712037Sandreas.sandberg@arm.com    m.def("bad_arg_def_unnamed", []{
39812391Sjason@lowepower.com        auto m = py::module::import("pybind11_tests");
39912391Sjason@lowepower.com        m.def("should_fail", [](int, UnregisteredType) {}, py::arg(), py::arg() = UnregisteredType());
40012037Sandreas.sandberg@arm.com    });
40112391Sjason@lowepower.com
40212391Sjason@lowepower.com    // test_accepts_none
40312391Sjason@lowepower.com    py::class_<NoneTester, std::shared_ptr<NoneTester>>(m, "NoneTester")
40412391Sjason@lowepower.com        .def(py::init<>());
40512391Sjason@lowepower.com    m.def("no_none1", &none1, py::arg().none(false));
40612391Sjason@lowepower.com    m.def("no_none2", &none2, py::arg().none(false));
40712391Sjason@lowepower.com    m.def("no_none3", &none3, py::arg().none(false));
40812391Sjason@lowepower.com    m.def("no_none4", &none4, py::arg().none(false));
40912391Sjason@lowepower.com    m.def("no_none5", &none5, py::arg().none(false));
41012391Sjason@lowepower.com    m.def("ok_none1", &none1);
41112391Sjason@lowepower.com    m.def("ok_none2", &none2, py::arg().none(true));
41212391Sjason@lowepower.com    m.def("ok_none3", &none3);
41312391Sjason@lowepower.com    m.def("ok_none4", &none4, py::arg().none(true));
41412391Sjason@lowepower.com    m.def("ok_none5", &none5);
41512391Sjason@lowepower.com
41612391Sjason@lowepower.com    // test_str_issue
41712391Sjason@lowepower.com    // Issue #283: __str__ called on uninitialized instance when constructor arguments invalid
41812391Sjason@lowepower.com    py::class_<StrIssue>(m, "StrIssue")
41912391Sjason@lowepower.com        .def(py::init<int>())
42012391Sjason@lowepower.com        .def(py::init<>())
42112391Sjason@lowepower.com        .def("__str__", [](const StrIssue &si) {
42212391Sjason@lowepower.com            return "StrIssue[" + std::to_string(si.val) + "]"; }
42312391Sjason@lowepower.com        );
42412391Sjason@lowepower.com
42512391Sjason@lowepower.com    // test_unregistered_base_implementations
42612391Sjason@lowepower.com    //
42712391Sjason@lowepower.com    // Issues #854/910: incompatible function args when member function/pointer is in unregistered
42812391Sjason@lowepower.com    // base class The methods and member pointers below actually resolve to members/pointers in
42912391Sjason@lowepower.com    // UnregisteredBase; before this test/fix they would be registered via lambda with a first
43012391Sjason@lowepower.com    // argument of an unregistered type, and thus uncallable.
43112391Sjason@lowepower.com    py::class_<RegisteredDerived>(m, "RegisteredDerived")
43212391Sjason@lowepower.com        .def(py::init<>())
43312391Sjason@lowepower.com        .def("do_nothing", &RegisteredDerived::do_nothing)
43412391Sjason@lowepower.com        .def("increase_value", &RegisteredDerived::increase_value)
43512391Sjason@lowepower.com        .def_readwrite("rw_value", &RegisteredDerived::rw_value)
43612391Sjason@lowepower.com        .def_readonly("ro_value", &RegisteredDerived::ro_value)
43712391Sjason@lowepower.com        // These should trigger a static_assert if uncommented
43812391Sjason@lowepower.com        //.def_readwrite("fails", &UserType::value) // should trigger a static_assert if uncommented
43912391Sjason@lowepower.com        //.def_readonly("fails", &UserType::value) // should trigger a static_assert if uncommented
44012391Sjason@lowepower.com        .def_property("rw_value_prop", &RegisteredDerived::get_int, &RegisteredDerived::set_int)
44112391Sjason@lowepower.com        .def_property_readonly("ro_value_prop", &RegisteredDerived::get_double)
44212391Sjason@lowepower.com        // This one is in the registered class:
44312391Sjason@lowepower.com        .def("sum", &RegisteredDerived::sum)
44412391Sjason@lowepower.com        ;
44512391Sjason@lowepower.com
44612391Sjason@lowepower.com    using Adapted = decltype(py::method_adaptor<RegisteredDerived>(&RegisteredDerived::do_nothing));
44712391Sjason@lowepower.com    static_assert(std::is_same<Adapted, void (RegisteredDerived::*)() const>::value, "");
44812391Sjason@lowepower.com
44912391Sjason@lowepower.com    // test_custom_caster_destruction
45012391Sjason@lowepower.com    // Test that `take_ownership` works on types with a custom type caster when given a pointer
45112391Sjason@lowepower.com
45212391Sjason@lowepower.com    // default policy: don't take ownership:
45312391Sjason@lowepower.com    m.def("custom_caster_no_destroy", []() { static auto *dt = new DestructionTester(); return dt; });
45412391Sjason@lowepower.com
45512391Sjason@lowepower.com    m.def("custom_caster_destroy", []() { return new DestructionTester(); },
45612391Sjason@lowepower.com            py::return_value_policy::take_ownership); // Takes ownership: destroy when finished
45712391Sjason@lowepower.com    m.def("custom_caster_destroy_const", []() -> const DestructionTester * { return new DestructionTester(); },
45812391Sjason@lowepower.com            py::return_value_policy::take_ownership); // Likewise (const doesn't inhibit destruction)
45912391Sjason@lowepower.com    m.def("destruction_tester_cstats", &ConstructorStats::get<DestructionTester>, py::return_value_policy::reference);
46012391Sjason@lowepower.com}
461