Merge pull request #1446 from Daylily-Zeleen/daylily-zeleen/set_instance_and_instance_biding_in_Wrapped_constructor

Set instance and instance binding in `Wrapped` constructor.

test/project/main.gd

@@ -9,6 +9,9 @@ class TestClass:
 func _ready():
 	var example: Example = $Example
 
+	# Timing of set instance binding.
+	assert_equal(example.is_object_binding_set_by_parent_constructor(), true)
+
 	# Signal.
 	example.emit_custom_signal("Button", 42)
 	assert_equal(custom_signal_emitted, ["Button", 42])

test/src/example.cpp

@@ -193,6 +193,8 @@ void Example::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("return_extended_ref"), &Example::return_extended_ref);
 	ClassDB::bind_method(D_METHOD("extended_ref_checks", "ref"), &Example::extended_ref_checks);
 
+	ClassDB::bind_method(D_METHOD("is_object_binding_set_by_parent_constructor"), &Example::is_object_binding_set_by_parent_constructor);
+
 	ClassDB::bind_method(D_METHOD("test_array"), &Example::test_array);
 	ClassDB::bind_method(D_METHOD("test_tarray_arg", "array"), &Example::test_tarray_arg);
 	ClassDB::bind_method(D_METHOD("test_tarray"), &Example::test_tarray);
@@ -291,7 +293,17 @@ void Example::_bind_methods() {
 	BIND_ENUM_CONSTANT(OUTSIDE_OF_CLASS);
 }
 
-Example::Example() {
+bool Example::has_object_instance_binding() const {
+	return internal::gdextension_interface_object_get_instance_binding(_owner, internal::token, nullptr);
+}
+
+Example::Example() :
+		object_instance_binding_set_by_parent_constructor(has_object_instance_binding()) {
+	// Test conversion, to ensure users can use all parent calss functions at this time.
+	// It would crash if instance binding still not be initialized.
+	Variant v = Variant(this);
+	Object *o = (Object *)v;
+
 	//UtilityFunctions::print("Constructor.");
 }
 
@@ -371,6 +383,10 @@ void Example::emit_custom_signal(const String &name, int value) {
 	emit_signal("custom_signal", name, value);
 }
 
+bool Example::is_object_binding_set_by_parent_constructor() const {
+	return object_instance_binding_set_by_parent_constructor;
+}
+
 Array Example::test_array() const {
 	Array arr;
 

test/src/example.h

@@ -82,6 +82,9 @@ private:
 	Vector2 dprop[3];
 	int last_rpc_arg = 0;
 
+	const bool object_instance_binding_set_by_parent_constructor;
+	bool has_object_instance_binding() const;
+
 public:
 	// Constants.
 	enum Constants {
@@ -120,6 +123,8 @@ public:
 	void emit_custom_signal(const String &name, int value);
 	int def_args(int p_a = 100, int p_b = 200);
 
+	bool is_object_binding_set_by_parent_constructor() const;
+
 	Array test_array() const;
 	int test_tarray_arg(const TypedArray<int64_t> &p_array);
 	TypedArray<Vector2> test_tarray() const;