godot/modules/mono/glue/base_object_glue.cpp
2020-07-05 19:19:36 +02:00

259 lines
10 KiB
C++

/*************************************************************************/
/* base_object_glue.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifdef MONO_GLUE_ENABLED
#include "core/class_db.h"
#include "core/object.h"
#include "core/reference.h"
#include "core/string_name.h"
#include "../csharp_script.h"
#include "../mono_gd/gd_mono_cache.h"
#include "../mono_gd/gd_mono_class.h"
#include "../mono_gd/gd_mono_internals.h"
#include "../mono_gd/gd_mono_marshal.h"
#include "../mono_gd/gd_mono_utils.h"
#include "../signal_awaiter_utils.h"
#include "arguments_vector.h"
Object *godot_icall_Object_Ctor(MonoObject *p_obj) {
Object *instance = memnew(Object);
GDMonoInternals::tie_managed_to_unmanaged(p_obj, instance);
return instance;
}
void godot_icall_Object_Disposed(MonoObject *p_obj, Object *p_ptr) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_ptr == nullptr);
#endif
if (p_ptr->get_script_instance()) {
CSharpInstance *cs_instance = CAST_CSHARP_INSTANCE(p_ptr->get_script_instance());
if (cs_instance) {
if (!cs_instance->is_destructing_script_instance()) {
cs_instance->mono_object_disposed(p_obj);
p_ptr->set_script_instance(nullptr);
}
return;
}
}
void *data = p_ptr->get_script_instance_binding(CSharpLanguage::get_singleton()->get_language_index());
if (data) {
CSharpScriptBinding &script_binding = ((Map<Object *, CSharpScriptBinding>::Element *)data)->get();
if (script_binding.inited) {
MonoGCHandleData &gchandle = script_binding.gchandle;
if (!gchandle.is_released()) {
CSharpLanguage::release_script_gchandle(p_obj, gchandle);
}
}
}
}
void godot_icall_Reference_Disposed(MonoObject *p_obj, Object *p_ptr, MonoBoolean p_is_finalizer) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_ptr == nullptr);
// This is only called with Reference derived classes
CRASH_COND(!Object::cast_to<Reference>(p_ptr));
#endif
Reference *ref = static_cast<Reference *>(p_ptr);
if (ref->get_script_instance()) {
CSharpInstance *cs_instance = CAST_CSHARP_INSTANCE(ref->get_script_instance());
if (cs_instance) {
if (!cs_instance->is_destructing_script_instance()) {
bool delete_owner;
bool remove_script_instance;
cs_instance->mono_object_disposed_baseref(p_obj, p_is_finalizer, delete_owner, remove_script_instance);
if (delete_owner) {
memdelete(ref);
} else if (remove_script_instance) {
ref->set_script_instance(nullptr);
}
}
return;
}
}
// Unsafe refcount decrement. The managed instance also counts as a reference.
// See: CSharpLanguage::alloc_instance_binding_data(Object *p_object)
CSharpLanguage::get_singleton()->pre_unsafe_unreference(ref);
if (ref->unreference()) {
memdelete(ref);
} else {
void *data = ref->get_script_instance_binding(CSharpLanguage::get_singleton()->get_language_index());
if (data) {
CSharpScriptBinding &script_binding = ((Map<Object *, CSharpScriptBinding>::Element *)data)->get();
if (script_binding.inited) {
MonoGCHandleData &gchandle = script_binding.gchandle;
if (!gchandle.is_released()) {
CSharpLanguage::release_script_gchandle(p_obj, gchandle);
}
}
}
}
}
void godot_icall_Object_ConnectEventSignals(Object *p_ptr) {
CSharpInstance *csharp_instance = CAST_CSHARP_INSTANCE(p_ptr->get_script_instance());
if (csharp_instance) {
csharp_instance->connect_event_signals();
}
}
MethodBind *godot_icall_Object_ClassDB_get_method(StringName *p_type, MonoString *p_method) {
StringName type = p_type ? *p_type : StringName();
StringName method(GDMonoMarshal::mono_string_to_godot(p_method));
return ClassDB::get_method(type, method);
}
MonoObject *godot_icall_Object_weakref(Object *p_ptr) {
if (!p_ptr) {
return nullptr;
}
Ref<WeakRef> wref;
Reference *ref = Object::cast_to<Reference>(p_ptr);
if (ref) {
REF r = ref;
if (!r.is_valid()) {
return nullptr;
}
wref.instance();
wref->set_ref(r);
} else {
wref.instance();
wref->set_obj(p_ptr);
}
return GDMonoUtils::unmanaged_get_managed(wref.ptr());
}
Error godot_icall_SignalAwaiter_connect(Object *p_source, StringName *p_signal, Object *p_target, MonoObject *p_awaiter) {
StringName signal = p_signal ? *p_signal : StringName();
return gd_mono_connect_signal_awaiter(p_source, signal, p_target, p_awaiter);
}
MonoArray *godot_icall_DynamicGodotObject_SetMemberList(Object *p_ptr) {
List<PropertyInfo> property_list;
p_ptr->get_property_list(&property_list);
MonoArray *result = mono_array_new(mono_domain_get(), CACHED_CLASS_RAW(String), property_list.size());
int i = 0;
for (List<PropertyInfo>::Element *E = property_list.front(); E; E = E->next()) {
MonoString *boxed = GDMonoMarshal::mono_string_from_godot(E->get().name);
mono_array_setref(result, i, boxed);
i++;
}
return result;
}
MonoBoolean godot_icall_DynamicGodotObject_InvokeMember(Object *p_ptr, MonoString *p_name, MonoArray *p_args, MonoObject **r_result) {
String name = GDMonoMarshal::mono_string_to_godot(p_name);
int argc = mono_array_length(p_args);
ArgumentsVector<Variant> arg_store(argc);
ArgumentsVector<const Variant *> args(argc);
for (int i = 0; i < argc; i++) {
MonoObject *elem = mono_array_get(p_args, MonoObject *, i);
arg_store.set(i, GDMonoMarshal::mono_object_to_variant(elem));
args.set(i, &arg_store.get(i));
}
Callable::CallError error;
Variant result = p_ptr->call(StringName(name), args.ptr(), argc, error);
*r_result = GDMonoMarshal::variant_to_mono_object(result);
return error.error == Callable::CallError::CALL_OK;
}
MonoBoolean godot_icall_DynamicGodotObject_GetMember(Object *p_ptr, MonoString *p_name, MonoObject **r_result) {
String name = GDMonoMarshal::mono_string_to_godot(p_name);
bool valid;
Variant value = p_ptr->get(StringName(name), &valid);
if (valid) {
*r_result = GDMonoMarshal::variant_to_mono_object(value);
}
return valid;
}
MonoBoolean godot_icall_DynamicGodotObject_SetMember(Object *p_ptr, MonoString *p_name, MonoObject *p_value) {
String name = GDMonoMarshal::mono_string_to_godot(p_name);
Variant value = GDMonoMarshal::mono_object_to_variant(p_value);
bool valid;
p_ptr->set(StringName(name), value, &valid);
return valid;
}
MonoString *godot_icall_Object_ToString(Object *p_ptr) {
#ifdef DEBUG_ENABLED
// Cannot happen in C#; would get an ObjectDisposedException instead.
CRASH_COND(p_ptr == nullptr);
#endif
// Can't call 'Object::to_string()' here, as that can end up calling 'ToString' again resulting in an endless circular loop.
String result = "[" + p_ptr->get_class() + ":" + itos(p_ptr->get_instance_id()) + "]";
return GDMonoMarshal::mono_string_from_godot(result);
}
void godot_register_object_icalls() {
mono_add_internal_call("Godot.Object::godot_icall_Object_Ctor", (void *)godot_icall_Object_Ctor);
mono_add_internal_call("Godot.Object::godot_icall_Object_Disposed", (void *)godot_icall_Object_Disposed);
mono_add_internal_call("Godot.Object::godot_icall_Reference_Disposed", (void *)godot_icall_Reference_Disposed);
mono_add_internal_call("Godot.Object::godot_icall_Object_ConnectEventSignals", (void *)godot_icall_Object_ConnectEventSignals);
mono_add_internal_call("Godot.Object::godot_icall_Object_ClassDB_get_method", (void *)godot_icall_Object_ClassDB_get_method);
mono_add_internal_call("Godot.Object::godot_icall_Object_ToString", (void *)godot_icall_Object_ToString);
mono_add_internal_call("Godot.Object::godot_icall_Object_weakref", (void *)godot_icall_Object_weakref);
mono_add_internal_call("Godot.SignalAwaiter::godot_icall_SignalAwaiter_connect", (void *)godot_icall_SignalAwaiter_connect);
mono_add_internal_call("Godot.DynamicGodotObject::godot_icall_DynamicGodotObject_SetMemberList", (void *)godot_icall_DynamicGodotObject_SetMemberList);
mono_add_internal_call("Godot.DynamicGodotObject::godot_icall_DynamicGodotObject_InvokeMember", (void *)godot_icall_DynamicGodotObject_InvokeMember);
mono_add_internal_call("Godot.DynamicGodotObject::godot_icall_DynamicGodotObject_GetMember", (void *)godot_icall_DynamicGodotObject_GetMember);
mono_add_internal_call("Godot.DynamicGodotObject::godot_icall_DynamicGodotObject_SetMember", (void *)godot_icall_DynamicGodotObject_SetMember);
}
#endif // MONO_GLUE_ENABLED