[Editor] Replace ERR_FAIL_COND with ERR_FAIL_NULL where applicable

editor/animation_track_editor.cpp

@@ -77,10 +77,10 @@ void AnimationTrackKeyEdit::_fix_node_path(Variant &value) {
 	Node *root = EditorNode::get_singleton()->get_tree()->get_root();
 
 	Node *np_node = root->get_node(np);
-	ERR_FAIL_COND(!np_node);
+	ERR_FAIL_NULL(np_node);
 
 	Node *edited_node = root->get_node(base);
-	ERR_FAIL_COND(!edited_node);
+	ERR_FAIL_NULL(edited_node);
 
 	value = edited_node->get_path_to(np_node);
 }
@@ -656,10 +656,10 @@ void AnimationMultiTrackKeyEdit::_fix_node_path(Variant &value, NodePath &base)
 	Node *root = EditorNode::get_singleton()->get_tree()->get_root();
 
 	Node *np_node = root->get_node(np);
-	ERR_FAIL_COND(!np_node);
+	ERR_FAIL_NULL(np_node);
 
 	Node *edited_node = root->get_node(base);
-	ERR_FAIL_COND(!edited_node);
+	ERR_FAIL_NULL(edited_node);
 
 	value = edited_node->get_path_to(np_node);
 }
@@ -3703,7 +3703,7 @@ void AnimationTrackEditor::_insert_track(bool p_reset_wanted, bool p_create_bezi
 }
 
 void AnimationTrackEditor::insert_transform_key(Node3D *p_node, const String &p_sub, const Animation::TrackType p_type, const Variant p_value) {
-	ERR_FAIL_COND(!root);
+	ERR_FAIL_NULL(root);
 	ERR_FAIL_COND_MSG(
 			(p_type != Animation::TYPE_POSITION_3D && p_type != Animation::TYPE_ROTATION_3D && p_type != Animation::TYPE_SCALE_3D),
 			"Track type must be Position/Rotation/Scale 3D.");
@@ -3746,7 +3746,7 @@ void AnimationTrackEditor::insert_transform_key(Node3D *p_node, const String &p_
 }
 
 bool AnimationTrackEditor::has_track(Node3D *p_node, const String &p_sub, const Animation::TrackType p_type) {
-	ERR_FAIL_COND_V(!root, false);
+	ERR_FAIL_NULL_V(root, false);
 	if (!keying) {
 		return false;
 	}
@@ -3802,7 +3802,7 @@ void AnimationTrackEditor::_insert_animation_key(NodePath p_path, const Variant
 }
 
 void AnimationTrackEditor::insert_node_value_key(Node *p_node, const String &p_property, const Variant &p_value, bool p_only_if_exists) {
-	ERR_FAIL_COND(!root);
+	ERR_FAIL_NULL(root);
 
 	// Let's build a node path.
 	Node *node = p_node;
@@ -3899,7 +3899,7 @@ void AnimationTrackEditor::insert_node_value_key(Node *p_node, const String &p_p
 void AnimationTrackEditor::insert_value_key(const String &p_property, const Variant &p_value, bool p_advance) {
 	EditorSelectionHistory *history = EditorNode::get_singleton()->get_editor_selection_history();
 
-	ERR_FAIL_COND(!root);
+	ERR_FAIL_NULL(root);
 	ERR_FAIL_COND(history->get_path_size() == 0);
 	Object *obj = ObjectDB::get_instance(history->get_path_object(0));
 	ERR_FAIL_COND(!Object::cast_to<Node>(obj));
@@ -4685,9 +4685,9 @@ void AnimationTrackEditor::_dropped_track(int p_from_track, int p_to_track) {
 }
 
 void AnimationTrackEditor::_new_track_node_selected(NodePath p_path) {
-	ERR_FAIL_COND(!root);
+	ERR_FAIL_NULL(root);
 	Node *node = get_node(p_path);
-	ERR_FAIL_COND(!node);
+	ERR_FAIL_NULL(node);
 	NodePath path_to = root->get_path_to(node, true);
 
 	if (adding_track_type == Animation::TYPE_BLEND_SHAPE && !node->is_class("MeshInstance3D")) {

editor/connections_dialog.cpp

@@ -858,7 +858,7 @@ void ConnectionsDock::_filter_changed(const String &p_text) {
 void ConnectionsDock::_make_or_edit_connection() {
 	NodePath dst_path = connect_dialog->get_dst_path();
 	Node *target = selected_node->get_node(dst_path);
-	ERR_FAIL_COND(!target);
+	ERR_FAIL_NULL(target);
 
 	ConnectDialog::ConnectionData cd;
 	cd.source = connect_dialog->get_source();
@@ -1066,7 +1066,7 @@ void ConnectionsDock::_open_connection_dialog(TreeItem &p_item) {
  */
 void ConnectionsDock::_open_edit_connection_dialog(TreeItem &p_item) {
 	TreeItem *signal_item = p_item.get_parent();
-	ERR_FAIL_COND(!signal_item);
+	ERR_FAIL_NULL(signal_item);
 
 	Connection connection = p_item.get_metadata(0);
 	ConnectDialog::ConnectionData cd = connection;

editor/debugger/editor_debugger_node.cpp

@@ -51,7 +51,7 @@ template <typename Func>
 void _for_all(TabContainer *p_node, const Func &p_func) {
 	for (int i = 0; i < p_node->get_tab_count(); i++) {
 		ScriptEditorDebugger *dbg = Object::cast_to<ScriptEditorDebugger>(p_node->get_tab_control(i));
-		ERR_FAIL_COND(!dbg);
+		ERR_FAIL_NULL(dbg);
 		p_func(dbg);
 	}
 }
@@ -133,7 +133,7 @@ ScriptEditorDebugger *EditorDebuggerNode::_add_debugger() {
 
 void EditorDebuggerNode::_stack_frame_selected(int p_debugger) {
 	const ScriptEditorDebugger *dbg = get_debugger(p_debugger);
-	ERR_FAIL_COND(!dbg);
+	ERR_FAIL_NULL(dbg);
 	if (dbg != get_current_debugger()) {
 		return;
 	}
@@ -405,7 +405,7 @@ void EditorDebuggerNode::_update_errors() {
 
 void EditorDebuggerNode::_debugger_stopped(int p_id) {
 	ScriptEditorDebugger *dbg = get_debugger(p_id);
-	ERR_FAIL_COND(!dbg);
+	ERR_FAIL_NULL(dbg);
 
 	bool found = false;
 	_for_all(tabs, [&](ScriptEditorDebugger *p_debugger) {
@@ -603,7 +603,7 @@ void EditorDebuggerNode::_remote_tree_button_pressed(Object *p_item, int p_colum
 	}
 
 	TreeItem *item = Object::cast_to<TreeItem>(p_item);
-	ERR_FAIL_COND(!item);
+	ERR_FAIL_NULL(item);
 
 	if (p_id == EditorDebuggerTree::BUTTON_SUBSCENE) {
 		remote_scene_tree->emit_signal(SNAME("open"), item->get_meta("scene_file_path"));

editor/debugger/editor_debugger_tree.cpp

@@ -300,7 +300,7 @@ String EditorDebuggerTree::get_selected_path() {
 }
 
 String EditorDebuggerTree::_get_path(TreeItem *p_item) {
-	ERR_FAIL_COND_V(!p_item, "");
+	ERR_FAIL_NULL_V(p_item, "");
 
 	if (p_item->get_parent() == nullptr) {
 		return "/root";

editor/debugger/editor_performance_profiler.cpp

@@ -47,7 +47,7 @@ EditorPerformanceProfiler::Monitor::Monitor(String p_name, String p_base, int p_
 }
 
 void EditorPerformanceProfiler::Monitor::update_value(float p_value) {
-	ERR_FAIL_COND(!item);
+	ERR_FAIL_NULL(item);
 	String label = EditorPerformanceProfiler::_create_label(p_value, type);
 	String tooltip = label;
 	switch (type) {

editor/editor_audio_buses.cpp

@@ -545,9 +545,9 @@ void EditorAudioBus::_effect_add(int p_which) {
 	StringName name = effect_options->get_item_metadata(p_which);
 
 	Object *fx = ClassDB::instantiate(name);
-	ERR_FAIL_COND(!fx);
+	ERR_FAIL_NULL(fx);
 	AudioEffect *afx = Object::cast_to<AudioEffect>(fx);
-	ERR_FAIL_COND(!afx);
+	ERR_FAIL_NULL(afx);
 	Ref<AudioEffect> afxr = Ref<AudioEffect>(afx);
 
 	afxr->set_name(effect_options->get_item_text(p_which));

editor/editor_autoload_settings.cpp

@@ -425,14 +425,14 @@ Node *EditorAutoloadSettings::_create_autoload(const String &p_path) {
 
 			Object *obj = ClassDB::instantiate(ibt);
 
-			ERR_FAIL_COND_V_MSG(!obj, nullptr, vformat("Cannot instance script for Autoload, expected 'Node' inheritance, got: %s.", ibt));
+			ERR_FAIL_NULL_V_MSG(obj, nullptr, vformat("Cannot instance script for Autoload, expected 'Node' inheritance, got: %s.", ibt));
 
 			n = Object::cast_to<Node>(obj);
 			n->set_script(scr);
 		}
 	}
 
-	ERR_FAIL_COND_V_MSG(!n, nullptr, vformat("Path in Autoload not a node or script: %s.", p_path));
+	ERR_FAIL_NULL_V_MSG(n, nullptr, vformat("Path in Autoload not a node or script: %s.", p_path));
 
 	return n;
 }

editor/editor_data.cpp

@@ -106,7 +106,7 @@ void EditorSelectionHistory::cleanup_history() {
 
 void EditorSelectionHistory::add_object(ObjectID p_object, const String &p_property, bool p_inspector_only) {
 	Object *obj = ObjectDB::get_instance(p_object);
-	ERR_FAIL_COND(!obj);
+	ERR_FAIL_NULL(obj);
 	RefCounted *r = Object::cast_to<RefCounted>(obj);
 	_Object o;
 	if (r) {
@@ -700,7 +700,7 @@ bool EditorData::check_and_update_scene(int p_idx) {
 		ERR_FAIL_COND_V(err != OK, false);
 		ep.step(TTR("Updating scene..."), 1);
 		Node *new_scene = pscene->instantiate(PackedScene::GEN_EDIT_STATE_MAIN);
-		ERR_FAIL_COND_V(!new_scene, false);
+		ERR_FAIL_NULL_V(new_scene, false);
 
 		// Transfer selection.
 		List<Node *> new_selection;

editor/editor_inspector.cpp

@@ -3955,7 +3955,7 @@ void EditorInspector::_property_pinned(const String &p_path, bool p_pinned) {
 	}
 
 	Node *node = Object::cast_to<Node>(object);
-	ERR_FAIL_COND(!node);
+	ERR_FAIL_NULL(node);
 
 	EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
 	undo_redo->create_action(vformat(p_pinned ? TTR("Pinned %s") : TTR("Unpinned %s"), p_path));

editor/editor_interface.cpp

@@ -480,7 +480,7 @@ void EditorInterface::create() {
 }
 
 void EditorInterface::free() {
-	ERR_FAIL_COND(singleton == nullptr);
+	ERR_FAIL_NULL(singleton);
 	memdelete(singleton);
 }
 

editor/editor_node.cpp

@@ -2003,7 +2003,7 @@ void EditorNode::_dialog_action(String p_file) {
 			saving_resource = Ref<Resource>();
 			ObjectID current_id = editor_history.get_current();
 			Object *current_obj = current_id.is_valid() ? ObjectDB::get_instance(current_id) : nullptr;
-			ERR_FAIL_COND(!current_obj);
+			ERR_FAIL_NULL(current_obj);
 			current_obj->notify_property_list_changed();
 		} break;
 		case SETTINGS_LAYOUT_SAVE: {
@@ -2281,7 +2281,7 @@ void EditorNode::_edit_current(bool p_skip_foreign) {
 
 	if (is_resource) {
 		Resource *current_res = Object::cast_to<Resource>(current_obj);
-		ERR_FAIL_COND(!current_res);
+		ERR_FAIL_NULL(current_res);
 
 		InspectorDock::get_inspector_singleton()->edit(current_res);
 		SceneTreeDock::get_singleton()->set_selected(nullptr);
@@ -2315,7 +2315,7 @@ void EditorNode::_edit_current(bool p_skip_foreign) {
 		}
 	} else if (is_node) {
 		Node *current_node = Object::cast_to<Node>(current_obj);
-		ERR_FAIL_COND(!current_node);
+		ERR_FAIL_NULL(current_node);
 
 		InspectorDock::get_inspector_singleton()->edit(current_node);
 		if (current_node->is_inside_tree()) {
@@ -2950,9 +2950,9 @@ void EditorNode::_screenshot(bool p_use_utc) {
 
 void EditorNode::_save_screenshot(NodePath p_path) {
 	Control *editor_main_screen = EditorInterface::get_singleton()->get_editor_main_screen();
-	ERR_FAIL_COND_MSG(!editor_main_screen, "Cannot get the editor main screen control.");
+	ERR_FAIL_NULL_MSG(editor_main_screen, "Cannot get the editor main screen control.");
 	Viewport *viewport = editor_main_screen->get_viewport();
-	ERR_FAIL_COND_MSG(!viewport, "Cannot get a viewport from the editor main screen.");
+	ERR_FAIL_NULL_MSG(viewport, "Cannot get a viewport from the editor main screen.");
 	Ref<ViewportTexture> texture = viewport->get_texture();
 	ERR_FAIL_COND_MSG(texture.is_null(), "Cannot get a viewport texture from the editor main screen.");
 	Ref<Image> img = texture->get_image();
@@ -3136,7 +3136,7 @@ void EditorNode::editor_select(int p_which) {
 	selecting = false;
 
 	EditorPlugin *new_editor = editor_table[p_which];
-	ERR_FAIL_COND(!new_editor);
+	ERR_FAIL_NULL(new_editor);
 
 	if (editor_plugin_screen == new_editor) {
 		return;
@@ -4169,7 +4169,7 @@ void EditorNode::stop_child_process(OS::ProcessID p_pid) {
 }
 
 Ref<Script> EditorNode::get_object_custom_type_base(const Object *p_object) const {
-	ERR_FAIL_COND_V(!p_object, nullptr);
+	ERR_FAIL_NULL_V(p_object, nullptr);
 
 	Ref<Script> scr = p_object->get_script();
 
@@ -4201,7 +4201,7 @@ Ref<Script> EditorNode::get_object_custom_type_base(const Object *p_object) cons
 }
 
 StringName EditorNode::get_object_custom_type_name(const Object *p_object) const {
-	ERR_FAIL_COND_V(!p_object, StringName());
+	ERR_FAIL_NULL_V(p_object, StringName());
 
 	Ref<Script> scr = p_object->get_script();
 	if (scr.is_null() && Object::cast_to<Script>(p_object)) {
@@ -4341,7 +4341,7 @@ Ref<Texture2D> EditorNode::get_class_icon(const String &p_class, const String &p
 }
 
 bool EditorNode::is_object_of_custom_type(const Object *p_object, const StringName &p_class) {
-	ERR_FAIL_COND_V(!p_object, false);
+	ERR_FAIL_NULL_V(p_object, false);
 
 	Ref<Script> scr = p_object->get_script();
 	if (scr.is_null() && Object::cast_to<Script>(p_object)) {
@@ -4631,7 +4631,7 @@ void EditorNode::_dock_make_selected_float() {
 }
 
 void EditorNode::_dock_make_float(Control *p_dock, int p_slot_index, bool p_show_window) {
-	ERR_FAIL_COND(!p_dock);
+	ERR_FAIL_NULL(p_dock);
 
 	Size2 borders = Size2(4, 4) * EDSCALE;
 	// Remember size and position before removing it from the main window.
@@ -5810,7 +5810,7 @@ void EditorNode::remove_control_from_dock(Control *p_control) {
 		}
 	}
 
-	ERR_FAIL_COND_MSG(!dock, "Control was not in dock.");
+	ERR_FAIL_NULL_MSG(dock, "Control was not in dock.");
 
 	dock->remove_child(p_control);
 	_update_dock_slots_visibility();
@@ -6207,7 +6207,7 @@ void EditorNode::reload_instances_with_path_in_edited_scenes(const String &p_ins
 					instantiated_node = current_packed_scene->instantiate(PackedScene::GEN_EDIT_STATE_INSTANCE);
 				}
 
-				ERR_FAIL_COND(!instantiated_node);
+				ERR_FAIL_NULL(instantiated_node);
 
 				bool original_node_is_displayed_folded = original_node->is_displayed_folded();
 				bool original_node_scene_instance_load_placeholder = original_node->get_scene_instance_load_placeholder();

editor/editor_paths.cpp

@@ -95,7 +95,7 @@ void EditorPaths::create() {
 }
 
 void EditorPaths::free() {
-	ERR_FAIL_COND(singleton == nullptr);
+	ERR_FAIL_NULL(singleton);
 	memdelete(singleton);
 }
 

editor/editor_plugin_settings.cpp

@@ -137,7 +137,7 @@ void EditorPluginSettings::_plugin_activity_changed() {
 	}
 
 	TreeItem *ti = plugin_list->get_edited();
-	ERR_FAIL_COND(!ti);
+	ERR_FAIL_NULL(ti);
 	bool active = ti->is_checked(3);
 	String name = ti->get_metadata(0);
 

editor/editor_properties.cpp

@@ -2786,7 +2786,7 @@ void EditorPropertyNodePath::_node_selected(const NodePath &p_path) {
 
 	if (!base_node && Object::cast_to<RefCounted>(get_edited_object())) {
 		Node *to_node = get_node(p_path);
-		ERR_FAIL_COND(!to_node);
+		ERR_FAIL_NULL(to_node);
 		path = get_tree()->get_edited_scene_root()->get_path_to(to_node);
 	}
 
@@ -2899,7 +2899,7 @@ void EditorPropertyNodePath::update_property() {
 	}
 
 	Node *target_node = base_node->get_node(p);
-	ERR_FAIL_COND(!target_node);
+	ERR_FAIL_NULL(target_node);
 
 	if (String(target_node->get_name()).contains("@")) {
 		assign->set_icon(Ref<Texture2D>());

editor/editor_properties_array_dict.cpp

@@ -1111,7 +1111,7 @@ void EditorPropertyDictionary::update_property() {
 				}
 			}
 
-			ERR_FAIL_COND(!prop);
+			ERR_FAIL_NULL(prop);
 
 			prop->set_read_only(is_read_only());
 

editor/editor_settings_dialog.cpp

@@ -500,7 +500,7 @@ void EditorSettingsDialog::_shortcut_button_pressed(Object *p_item, int p_column
 		return;
 	}
 	TreeItem *ti = Object::cast_to<TreeItem>(p_item);
-	ERR_FAIL_COND_MSG(!ti, "Object passed is not a TreeItem");
+	ERR_FAIL_NULL_MSG(ti, "Object passed is not a TreeItem.");
 
 	ShortcutButton button_idx = (ShortcutButton)p_idx;
 

editor/export/editor_export_platform.cpp

@@ -756,7 +756,7 @@ String EditorExportPlatform::_export_customize(const String &p_path, LocalVector
 		Ref<PackedScene> ps = ResourceLoader::load(p_path, "PackedScene", ResourceFormatLoader::CACHE_MODE_IGNORE);
 		ERR_FAIL_COND_V(ps.is_null(), p_path);
 		Node *node = ps->instantiate(PackedScene::GEN_EDIT_STATE_INSTANCE); // Make sure the child scene root gets the correct inheritance chain.
-		ERR_FAIL_COND_V(node == nullptr, p_path);
+		ERR_FAIL_NULL_V(node, p_path);
 		if (!customize_scenes_plugins.is_empty()) {
 			for (Ref<EditorExportPlugin> &plugin : customize_scenes_plugins) {
 				Node *customized = plugin->_customize_scene(node, p_path);

editor/filesystem_dock.cpp

@@ -2349,7 +2349,7 @@ void FileSystemDock::_resource_created() {
 
 	ERR_FAIL_COND(!c);
 	Resource *r = Object::cast_to<Resource>(c);
-	ERR_FAIL_COND(!r);
+	ERR_FAIL_NULL(r);
 
 	PackedScene *scene = Object::cast_to<PackedScene>(r);
 	if (scene) {

editor/find_in_files.cpp

@@ -501,8 +501,8 @@ void FindInFilesDialog::custom_action(const String &p_action) {
 }
 
 void FindInFilesDialog::_on_search_text_modified(String text) {
-	ERR_FAIL_COND(!_find_button);
-	ERR_FAIL_COND(!_replace_button);
+	ERR_FAIL_NULL(_find_button);
+	ERR_FAIL_NULL(_replace_button);
 
 	_find_button->set_disabled(get_search_text().is_empty());
 	_replace_button->set_disabled(get_search_text().is_empty());