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Merge pull request #365 from sheepandshepherd/class_ptr 

Fix `cast_to` for non-exposed engine types
pull/445/head
Marc 2020-08-16 23:30:52 +01:00 committed by GitHub
parent 16000199c5 33f9de16e4
commit 19fa40591b
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 31 additions and 14 deletions
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12
binding_generator.py
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@ -146,10 +146,14 @@ def generate_class_header(used_classes, c):
source.append("\t};")
source.append("\tstatic ___method_bindings ___mb;")
source.append("\tstatic void *_detail_class_tag;")
source.append("")
source.append("public:")
source.append("\tstatic void ___init_method_bindings();")
# class id from core engine for casting
source.append("\tinline static size_t ___get_id() { return (size_t)_detail_class_tag; }")
source.append("")
@ -355,11 +359,19 @@ def generate_class_implementation(icalls, used_classes, c):
source.append(class_name + "::___method_bindings " + class_name + "::___mb = {};")
source.append("")
source.append("void *" + class_name + "::_detail_class_tag = nullptr;")
source.append("")
source.append("void " + class_name + "::___init_method_bindings() {")
for method in c["methods"]:
source.append("\t___mb.mb_" + method["name"] + " = godot::api->godot_method_bind_get_method(\"" + c["name"] + "\", \"" + method["name"] + "\");")
source.append("\tgodot_string_name class_name;")
source.append("\tgodot::api->godot_string_name_new_data(&class_name, \"" + c["name"] + "\");")
source.append("\t_detail_class_tag = godot::core_1_2_api->godot_get_class_tag(&class_name);")
source.append("\tgodot::api->godot_string_name_destroy(&class_name);")
source.append("}")
source.append("")

33
include/core/Godot.hpp
View File

@ -100,7 +100,7 @@ public:
return godot::detail::create_custom_class_instance<Name>(); \
} \
inline static size_t ___get_id() { return typeid(Name).hash_code(); } \
inline static size_t ___get_base_id() { return typeid(Base).hash_code(); } \
inline static size_t ___get_base_id() { return Base::___get_id(); } \
inline static const char *___get_base_type_name() { return Base::___get_class_name(); } \
inline static godot::Object *___get_from_variant(godot::Variant a) { \
return (godot::Object *)godot::detail::get_custom_class_instance<Name>( \
@ -513,23 +513,28 @@ T *Object::cast_to(const Object *obj) {
if (!obj)
return nullptr;
size_t have_tag = (size_t)godot::nativescript_1_1_api->godot_nativescript_get_type_tag(obj->_owner);
if (T::___CLASS_IS_SCRIPT) {
size_t have_tag = (size_t)godot::nativescript_1_1_api->godot_nativescript_get_type_tag(obj->_owner);
if (have_tag) {
if (!godot::_TagDB::is_type_known((size_t)have_tag)) {
have_tag = 0;
}
}
if (have_tag) {
if (!godot::_TagDB::is_type_known((size_t)have_tag)) {
have_tag = 0;
if (!have_tag) {
have_tag = obj->_type_tag;
}
if (godot::_TagDB::is_type_compatible(T::___get_id(), have_tag)) {
return detail::get_custom_class_instance<T>(obj);
}
} else {
if (godot::core_1_2_api->godot_object_cast_to(obj->_owner, (void *)T::___get_id())) {
return (T *)obj;
}
}
if (!have_tag) {
have_tag = obj->_type_tag;
}
if (godot::_TagDB::is_type_compatible(typeid(T).hash_code(), have_tag)) {
return (T::___CLASS_IS_SCRIPT) ? detail::get_custom_class_instance<T>(obj) : (T *)obj;
} else {
return nullptr;
}
return nullptr;
}
#endif