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godot-cpp
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Merge 2642a84abb into 0ddef6ed96

pull/1362/merge
IvanInventor 2024-01-18 23:50:14 +00:00 committed by GitHub
parent 0ddef6ed96 2642a84abb
commit f94db1e361
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GPG Key ID: B5690EEEBB952194
5 changed files with 67 additions and 5 deletions
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35
include/godot_cpp/classes/wrapped.hpp
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@ -142,10 +142,9 @@ struct EngineClassRegistration {
#define _GDCLASS_RECREATE(m_class, m_inherits) return nullptr;
#endif
// Use this on top of your own classes.
// Note: the trail of `***` is to keep sane diffs in PRs, because clang-format otherwise moves every `\` which makes
// every line of the macro different
#define GDCLASS(m_class, m_inherits) /***********************************************************************************************************************************************/ \
#define GDCLASS_NAME(m_class, m_inherits, m_class_name) /****************************************************************************************************************************/ \
private: \
void operator=(const m_class &p_rval) {} \
friend class ::godot::ClassDB; \
@ -196,9 +195,9 @@ protected:
return (::godot::String(::godot::Wrapped::*)() const) & m_class::_to_string; \
} \
\
template <class T, class B> \
template <class GODOTCPP_T, class GODOTCPP_B> \
static void register_virtuals() { \
m_inherits::register_virtuals<T, B>(); \
m_inherits::register_virtuals<GODOTCPP_T, GODOTCPP_B>(); \
} \
\
public: \
@ -218,7 +217,7 @@ public:
} \
\
static ::godot::StringName &get_class_static() { \
static ::godot::StringName string_name = ::godot::StringName(#m_class); \
static ::godot::StringName string_name = ::godot::StringName(m_class_name); \
return string_name; \
} \
\
@ -369,6 +368,32 @@ public:
\
private:
// Use this on top of your own classes.
#define GDCLASS(m_class, m_inherits) GDCLASS_NAME(m_class, m_inherits, #m_class)
/* Use this to create templated class
You need to initialize `static const char *_template_class_name` with custom name
outside of class for every template instatiation you use
Example:
// in .h:
template<class T>
class ExampleTemplated : public Object {
GDCLASS_TEMPLATED(ExampleTemplated, Object);
};
// in .cpp:
template<>
const char * ExampleTemplated<int>::_template_class_name = "ExampleTemplatedInt";
template<>
const char * ExampleTemplated<float>::_template_class_name = "ExampleTemplatedFloat";
*/
#define GDCLASS_TEMPLATE(m_class, m_inherits) /*************************/ \
private: \
static const char *_template_class_name; \
GDCLASS_NAME(m_class, m_inherits, _template_class_name)
// Don't use this for your classes, use GDCLASS() instead.
#define GDEXTENSION_CLASS_ALIAS(m_class, m_alias_for, m_inherits) /******************************************************************************************************************/ \
private: \

4
test/project/main.gd
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@ -241,6 +241,10 @@ func _ready():
assert_equal(new_example_ref.was_post_initialized(), true)
assert_equal(example.test_post_initialize(), true)
# Check templated classes
var i = ExampleTemplatedInt.new()
var f = ExampleTemplatedFloat.new()
assert_equal(i.get_number() == 42 and is_equal_approx(f.get_number(), 42), true)
exit_with_status()
func _on_Example_custom_signal(signal_name, value):

18
test/src/example.cpp
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@ -626,3 +626,21 @@ void Example::_input(const Ref<InputEvent> &event) {
emit_custom_signal(String("_input: ") + key_event->get_key_label(), key_event->get_unicode());
}
}
template <>
const char *ExampleTemplated<int>::_template_class_name = "ExampleTemplatedInt";
template class ExampleTemplated<int>;
template <>
const char *ExampleTemplated<float>::_template_class_name = "ExampleTemplatedFloat";
template class ExampleTemplated<float>;
template <class T>
void ExampleTemplated<T>::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_number"), &ExampleTemplated::get_number);
}
template <class T>
T ExampleTemplated<T>::get_number() {
return number;
}

12
test/src/example.h
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@ -205,4 +205,16 @@ protected:
static void _bind_methods() {}
};
template <class T>
class ExampleTemplated : public Object {
GDCLASS_TEMPLATE(ExampleTemplated, Object);
T number = (T)42;
protected:
static void _bind_methods();
T get_number();
};
#endif // EXAMPLE_CLASS_H

3
test/src/register_types.cpp
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@ -26,6 +26,9 @@ void initialize_example_module(ModuleInitializationLevel p_level) {
ClassDB::register_class<Example>();
ClassDB::register_class<ExampleVirtual>(true);
ClassDB::register_abstract_class<ExampleAbstract>();
ClassDB::register_class<ExampleTemplated<int>>();
ClassDB::register_class<ExampleTemplated<float>>();
}
void uninitialize_example_module(ModuleInitializationLevel p_level) {