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d65edfb024
* Create a module_internals struct Since we now have two things that are going to be module local, it felt correct to add a struct to manage them. * Add local exception translators These are added via the register_local_exception_translator function and are then applied before the global translators * Add unit tests to show the local exception translator works * Fix a bug in the unit test with the string value of KeyError * Fix a formatting issue * Rename registered_local_types_cpp() Rename it to get_registered_local_types_cpp() to disambiguate from the new member of module_internals * Add additional comments to new local exception code path * Add a register_local_exception function * Add additional unit tests for register_local_exception * Use get_local_internals like get_internals * Update documentation for new local exception feature * Add back a missing space * Clean-up some issues in the docs * Remove the code duplication when translating exceptions Separated out the exception processing into a standalone function in the details namespace. Clean-up some comments as per PR notes as well * Remove the code duplication in register_exception * Cleanup some formatting things caught by clang-format * Remove the templates from exception translators But I added a using declaration to alias the type. * Remove the extra local from local_internals variable names * Add an extra explanatory comment to local_internals * Fix a typo in the code
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
#pragma once
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#include <utility>
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#include "pybind11_tests.h"
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/// Simple class used to test py::local:
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template <int> class LocalBase {
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public:
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LocalBase(int i) : i(i) { }
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int i = -1;
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};
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/// Registered with py::module_local in both main and secondary modules:
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using LocalType = LocalBase<0>;
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/// Registered without py::module_local in both modules:
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using NonLocalType = LocalBase<1>;
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/// A second non-local type (for stl_bind tests):
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using NonLocal2 = LocalBase<2>;
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/// Tests within-module, different-compilation-unit local definition conflict:
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using LocalExternal = LocalBase<3>;
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/// Mixed: registered local first, then global
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using MixedLocalGlobal = LocalBase<4>;
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/// Mixed: global first, then local
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using MixedGlobalLocal = LocalBase<5>;
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/// Registered with py::module_local only in the secondary module:
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using ExternalType1 = LocalBase<6>;
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using ExternalType2 = LocalBase<7>;
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using LocalVec = std::vector<LocalType>;
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using LocalVec2 = std::vector<NonLocal2>;
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using LocalMap = std::unordered_map<std::string, LocalType>;
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using NonLocalVec = std::vector<NonLocalType>;
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using NonLocalVec2 = std::vector<NonLocal2>;
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using NonLocalMap = std::unordered_map<std::string, NonLocalType>;
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using NonLocalMap2 = std::unordered_map<std::string, uint8_t>;
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// Exception that will be caught via the module local translator.
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class LocalException : public std::exception {
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public:
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explicit LocalException(const char * m) : message{m} {}
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const char * what() const noexcept override {return message.c_str();}
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private:
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std::string message = "";
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};
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// Exception that will be registered with register_local_exception_translator
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class LocalSimpleException : public std::exception {
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public:
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explicit LocalSimpleException(const char * m) : message{m} {}
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const char * what() const noexcept override {return message.c_str();}
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private:
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std::string message = "";
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};
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PYBIND11_MAKE_OPAQUE(LocalVec);
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PYBIND11_MAKE_OPAQUE(LocalVec2);
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PYBIND11_MAKE_OPAQUE(LocalMap);
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PYBIND11_MAKE_OPAQUE(NonLocalVec);
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//PYBIND11_MAKE_OPAQUE(NonLocalVec2); // same type as LocalVec2
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PYBIND11_MAKE_OPAQUE(NonLocalMap);
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PYBIND11_MAKE_OPAQUE(NonLocalMap2);
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// Simple bindings (used with the above):
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template <typename T, int Adjust = 0, typename... Args>
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py::class_<T> bind_local(Args && ...args) {
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return py::class_<T>(std::forward<Args>(args)...)
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.def(py::init<int>())
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.def("get", [](T &i) { return i.i + Adjust; });
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};
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// Simulate a foreign library base class (to match the example in the docs):
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namespace pets {
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class Pet {
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public:
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Pet(std::string name) : name_(std::move(name)) {}
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std::string name_;
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const std::string &name() const { return name_; }
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};
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} // namespace pets
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struct MixGL { int i; MixGL(int i) : i{i} {} };
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struct MixGL2 { int i; MixGL2(int i) : i{i} {} };
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