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[Core] Add ClassDB functions to retrieve/construct extensions.

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Calling the constructor alone is not enough if the class to be
instantiated is not a base class.

This commit adds two functions, one for retrieving the the extension
class reference, the other to construct an instance using the
constructor and the extension class reference.
This commit is contained in:
Fabio Alessandrelli
2021-09-21 03:54:50 +02:00
parent a4b80cdad9
commit f724bd1880
4 changed files with 25 additions and 0 deletions
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14
core/extension/gdnative_interface.cpp
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@@ -862,6 +862,18 @@ static GDNativeClassConstructor gdnative_classdb_get_constructor(const char *p_c
return nullptr;
}
static GDNativeExtensionPtr gdnative_classdb_get_extension(const char *p_classname) {
ClassDB::ClassInfo *class_info = ClassDB::classes.getptr(StringName(p_classname));
if (class_info) {
return (GDNativeExtensionPtr)class_info->native_extension;
}
return nullptr;
}
static GDNativeObjectPtr gdnative_classdb_construct_extended(GDNativeClassConstructor p_constructor, GDNativeExtensionPtr p_extension) {
return (GDNativeObjectPtr)ClassDB::construct_extended((Object * (*)()) p_constructor, (ObjectNativeExtension *)p_extension);
}
static void *gdnative_classdb_get_class_tag(const char *p_classname) {
ClassDB::ClassInfo *class_info = ClassDB::classes.getptr(p_classname);
return class_info ? class_info->class_ptr : nullptr;
@@ -1010,6 +1022,8 @@ void gdnative_setup_interface(GDNativeInterface *p_interface) {
/* CLASSDB */
gdni.classdb_get_constructor = gdnative_classdb_get_constructor;
gdni.classdb_get_extension = gdnative_classdb_get_extension;
gdni.classdb_construct_extended = gdnative_classdb_construct_extended;
gdni.classdb_get_method_bind = gdnative_classdb_get_method_bind;
gdni.classdb_get_class_tag = gdnative_classdb_get_class_tag;