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pybind11_cross_module_tests.cpp
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Sat, Nov 23, 18:48

pybind11_cross_module_tests.cpp
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/*
tests/pybind11_cross_module_tests.cpp -- contains tests that require multiple modules
Copyright (c) 2017 Jason Rhinelander <jason@imaginary.ca>
All rights reserved. Use of this source code is governed by a
BSD-style license that can be found in the LICENSE file.
*/
#include "pybind11_tests.h"
#include "local_bindings.h"
#include <pybind11/stl_bind.h>
#include <numeric>
PYBIND11_MODULE(pybind11_cross_module_tests, m) {
m.doc() = "pybind11 cross-module test module";
// test_local_bindings.py tests:
//
// Definitions here are tested by importing both this module and the
// relevant pybind11_tests submodule from a test_whatever.py
// test_load_external
bind_local<ExternalType1>(m, "ExternalType1", py::module_local());
bind_local<ExternalType2>(m, "ExternalType2", py::module_local());
// test_exceptions.py
m.def("raise_runtime_error", []() { PyErr_SetString(PyExc_RuntimeError, "My runtime error"); throw py::error_already_set(); });
m.def("raise_value_error", []() { PyErr_SetString(PyExc_ValueError, "My value error"); throw py::error_already_set(); });
m.def("throw_pybind_value_error", []() { throw py::value_error("pybind11 value error"); });
m.def("throw_pybind_type_error", []() { throw py::type_error("pybind11 type error"); });
m.def("throw_stop_iteration", []() { throw py::stop_iteration(); });
// test_local_bindings.py
// Local to both:
bind_local<LocalType, 1>(m, "LocalType", py::module_local())
.def("get2", [](LocalType &t) { return t.i + 2; })
;
// Can only be called with our python type:
m.def("local_value", [](LocalType &l) { return l.i; });
// test_nonlocal_failure
// This registration will fail (global registration when LocalFail is already registered
// globally in the main test module):
m.def("register_nonlocal", [m]() {
bind_local<NonLocalType, 0>(m, "NonLocalType");
});
// test_stl_bind_local
// stl_bind.h binders defaults to py::module_local if the types are local or converting:
py::bind_vector<LocalVec>(m, "LocalVec");
py::bind_map<LocalMap>(m, "LocalMap");
// test_stl_bind_global
// and global if the type (or one of the types, for the map) is global (so these will fail,
// assuming pybind11_tests is already loaded):
m.def("register_nonlocal_vec", [m]() {
py::bind_vector<NonLocalVec>(m, "NonLocalVec");
});
m.def("register_nonlocal_map", [m]() {
py::bind_map<NonLocalMap>(m, "NonLocalMap");
});
// The default can, however, be overridden to global using `py::module_local()` or
// `py::module_local(false)`.
// Explicitly made local:
py::bind_vector<NonLocalVec2>(m, "NonLocalVec2", py::module_local());
// Explicitly made global (and so will fail to bind):
m.def("register_nonlocal_map2", [m]() {
py::bind_map<NonLocalMap2>(m, "NonLocalMap2", py::module_local(false));
});
// test_mixed_local_global
// We try this both with the global type registered first and vice versa (the order shouldn't
// matter).
m.def("register_mixed_global_local", [m]() {
bind_local<MixedGlobalLocal, 200>(m, "MixedGlobalLocal", py::module_local());
});
m.def("register_mixed_local_global", [m]() {
bind_local<MixedLocalGlobal, 2000>(m, "MixedLocalGlobal", py::module_local(false));
});
m.def("get_mixed_gl", [](int i) { return MixedGlobalLocal(i); });
m.def("get_mixed_lg", [](int i) { return MixedLocalGlobal(i); });
// test_internal_locals_differ
m.def("local_cpp_types_addr", []() { return (uintptr_t) &py::detail::registered_local_types_cpp(); });
// test_stl_caster_vs_stl_bind
py::bind_vector<std::vector<int>>(m, "VectorInt");
m.def("load_vector_via_binding", [](std::vector<int> &v) {
return std::accumulate(v.begin(), v.end(), 0);
});
// test_cross_module_calls
m.def("return_self", [](LocalVec *v) { return v; });
m.def("return_copy", [](const LocalVec &v) { return LocalVec(v); });
class Dog : public pets::Pet { public: Dog(std::string name) : Pet(name) {}; };
py::class_<pets::Pet>(m, "Pet", py::module_local())
.def("name", &pets::Pet::name);
// Binding for local extending class:
py::class_<Dog, pets::Pet>(m, "Dog")
.def(py::init<std::string>());
m.def("pet_name", [](pets::Pet &p) { return p.name(); });
py::class_<MixGL>(m, "MixGL", py::module_local()).def(py::init<int>());
m.def("get_gl_value", [](MixGL &o) { return o.i + 100; });
py::class_<MixGL2>(m, "MixGL2", py::module_local()).def(py::init<int>());
// test_vector_bool
// We can't test both stl.h and stl_bind.h conversions of `std::vector<bool>` within
// the same module (it would be an ODR violation). Therefore `bind_vector` of `bool`
// is defined here and tested in `test_stl_binders.py`.
py::bind_vector<std::vector<bool>>(m, "VectorBool");
// test_missing_header_message
// The main module already includes stl.h, but we need to test the error message
// which appears when this header is missing.
m.def("missing_header_arg", [](std::vector<float>) { });
m.def("missing_header_return", []() { return std::vector<float>(); });
}

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