Cherry-picks for the godot-cpp 4.1 branch - 4th batch

.github/workflows/ci.yml

@@ -78,8 +78,18 @@ jobs:
             run-tests: false
             cache-name: ios-arm64
 
+          - name: 🌐 Web (wasm32)
+            os: ubuntu-20.04
+            platform: javascript
+            artifact-name: godot-cpp-javascript-wasm32-release
+            artifact-path: bin/libgodot-cpp.javascript.template_release.wasm32.a
+            run-tests: false
+            cache-name: javascript-wasm32
+
     env:
       SCONS_CACHE: ${{ github.workspace }}/.scons-cache/
+      EM_VERSION: 3.1.45
+      EM_CACHE_FOLDER: "emsdk-cache"
 
     steps:
       - name: Checkout
@@ -104,6 +114,13 @@ jobs:
           sudo apt-get update -qq
           sudo apt-get install -qqq build-essential pkg-config
 
+      - name: Web dependencies
+        if: ${{ matrix.platform == 'javascript' }}
+        uses: mymindstorm/setup-emsdk@v12
+        with:
+          version: ${{env.EM_VERSION}}
+          actions-cache-folder: ${{env.EM_CACHE_FOLDER}}
+
       - name: Install scons
         run: |
           python -m pip install scons==4.0.0

SConstruct

@@ -21,6 +21,10 @@ env.PrependENVPath("PATH", os.getenv("PATH"))
 
 # Custom options and profile flags.
 customs = ["custom.py"]
+try:
+    customs += Import("customs")
+except:
+    pass
 profile = ARGUMENTS.get("profile", "")
 if profile:
     if os.path.isfile(profile):

binding_generator.py

@@ -1519,13 +1519,13 @@ def generate_engine_class_source(class_api, used_classes, fully_used_classes, us
             f"\t\tGDExtensionObjectPtr singleton_obj = internal::gdextension_interface_global_get_singleton({class_name}::get_class_static()._native_ptr());"
         )
         result.append("#ifdef DEBUG_ENABLED")
-        result.append("\t\tERR_FAIL_COND_V(singleton_obj == nullptr, nullptr);")
+        result.append("\t\tERR_FAIL_NULL_V(singleton_obj, nullptr);")
         result.append("#endif // DEBUG_ENABLED")
         result.append(
             f"\t\tsingleton = reinterpret_cast<{class_name} *>(internal::gdextension_interface_object_get_instance_binding(singleton_obj, internal::token, &{class_name}::_gde_binding_callbacks));"
         )
         result.append("#ifdef DEBUG_ENABLED")
-        result.append("\t\tERR_FAIL_COND_V(singleton == nullptr, nullptr);")
+        result.append("\t\tERR_FAIL_NULL_V(singleton, nullptr);")
         result.append("#endif // DEBUG_ENABLED")
         result.append("\t}")
         result.append("\treturn singleton;")

include/godot_cpp/classes/ref.hpp

@@ -63,7 +63,7 @@ class Ref {
 	}
 
 	void ref_pointer(T *p_ref) {
-		ERR_FAIL_COND(!p_ref);
+		ERR_FAIL_NULL(p_ref);
 
 		if (p_ref->init_ref()) {
 			reference = p_ref;

include/godot_cpp/core/class_db.hpp

@@ -257,7 +257,7 @@ MethodBind *ClassDB::bind_static_method(StringName p_class, N p_method_name, M p
 template <class M>
 MethodBind *ClassDB::bind_vararg_method(uint32_t p_flags, StringName p_name, M p_method, const MethodInfo &p_info, const std::vector<Variant> &p_default_args, bool p_return_nil_is_variant) {
 	MethodBind *bind = create_vararg_method_bind(p_method, p_info, p_return_nil_is_variant);
-	ERR_FAIL_COND_V(!bind, nullptr);
+	ERR_FAIL_NULL_V(bind, nullptr);
 
 	bind->set_name(p_name);
 	bind->set_default_arguments(p_default_args);

include/godot_cpp/core/memory.hpp

@@ -146,7 +146,7 @@ T *memnew_arr_template(size_t p_elements, const char *p_descr = "") {
 	size_t len = sizeof(T) * p_elements;
 	uint64_t *mem = (uint64_t *)Memory::alloc_static(len, true);
 	T *failptr = nullptr; // Get rid of a warning.
-	ERR_FAIL_COND_V(!mem, failptr);
+	ERR_FAIL_NULL_V(mem, failptr);
 	*(mem - 1) = p_elements;
 
 	if (!std::is_trivially_destructible<T>::value) {

include/godot_cpp/templates/cowdata.hpp

@@ -102,6 +102,10 @@ class CowData {
 	}
 
 	_FORCE_INLINE_ bool _get_alloc_size_checked(size_t p_elements, size_t *out) const {
+		if (unlikely(p_elements == 0)) {
+			*out = 0;
+			return true;
+		}
 #if defined(__GNUC__)
 		size_t o;
 		size_t p;
@@ -113,13 +117,12 @@ class CowData {
 		if (__builtin_add_overflow(o, static_cast<size_t>(32), &p)) {
 			return false; // No longer allocated here.
 		}
-		return true;
 #else
 		// Speed is more important than correctness here, do the operations unchecked
 		// and hope for the best.
 		*out = _get_alloc_size(p_elements);
-		return true;
 #endif
+		return *out;
 	}
 
 	void _unref(void *p_data);
@@ -294,15 +297,15 @@ Error CowData<T>::resize(int p_size) {
 			if (current_size == 0) {
 				// alloc from scratch
 				uint32_t *ptr = (uint32_t *)Memory::alloc_static(alloc_size, true);
-				ERR_FAIL_COND_V(!ptr, ERR_OUT_OF_MEMORY);
+				ERR_FAIL_NULL_V(ptr, ERR_OUT_OF_MEMORY);
 				*(ptr - 1) = 0; // size, currently none
 				new (ptr - 2) SafeNumeric<uint32_t>(1); // refcount
 
 				_ptr = (T *)ptr;
 
 			} else {
 				uint32_t *_ptrnew = (uint32_t *)Memory::realloc_static(_ptr, alloc_size, true);
-				ERR_FAIL_COND_V(!_ptrnew, ERR_OUT_OF_MEMORY);
+				ERR_FAIL_NULL_V(_ptrnew, ERR_OUT_OF_MEMORY);
 				new (_ptrnew - 2) SafeNumeric<uint32_t>(rc); // refcount
 
 				_ptr = (T *)(_ptrnew);
@@ -332,7 +335,7 @@ Error CowData<T>::resize(int p_size) {
 
 		if (alloc_size != current_alloc_size) {
 			uint32_t *_ptrnew = (uint32_t *)Memory::realloc_static(_ptr, alloc_size, true);
-			ERR_FAIL_COND_V(!_ptrnew, ERR_OUT_OF_MEMORY);
+			ERR_FAIL_NULL_V(_ptrnew, ERR_OUT_OF_MEMORY);
 			new (_ptrnew - 2) SafeNumeric<uint32_t>(rc); // refcount
 
 			_ptr = (T *)(_ptrnew);

include/godot_cpp/templates/list.hpp

@@ -221,7 +221,7 @@ class List {
 		int size_cache = 0;
 
 		bool erase(const Element *p_I) {
-			ERR_FAIL_COND_V(!p_I, false);
+			ERR_FAIL_NULL_V(p_I, false);
 			ERR_FAIL_COND_V(p_I->data != this, false);
 
 			if (first == p_I) {

include/godot_cpp/templates/rid_owner.hpp

@@ -186,12 +186,12 @@ class RID_Alloc {
 	}
 	void initialize_rid(RID p_rid) {
 		T *mem = get_or_null(p_rid, true);
-		ERR_FAIL_COND(!mem);
+		ERR_FAIL_NULL(mem);
 		memnew_placement(mem, T);
 	}
 	void initialize_rid(RID p_rid, const T &p_value) {
 		T *mem = get_or_null(p_rid, true);
-		ERR_FAIL_COND(!mem);
+		ERR_FAIL_NULL(mem);
 		memnew_placement(mem, T(p_value));
 	}
 
@@ -374,7 +374,7 @@ class RID_PtrOwner {
 
 	_FORCE_INLINE_ void replace(const RID &p_rid, T *p_new_ptr) {
 		T **ptr = alloc.get_or_null(p_rid);
-		ERR_FAIL_COND(!ptr);
+		ERR_FAIL_NULL(ptr);
 		*ptr = p_new_ptr;
 	}
 

include/godot_cpp/templates/thread_work_pool.hpp

@@ -96,7 +96,7 @@ class ThreadWorkPool {
 public:
 	template <class C, class M, class U>
 	void begin_work(uint32_t p_elements, C *p_instance, M p_method, U p_userdata) {
-		ERR_FAIL_COND(!threads); // never initialized
+		ERR_FAIL_NULL(threads); // Never initialized.
 		ERR_FAIL_COND(current_work != nullptr);
 
 		index.store(0, std::memory_order_release);
@@ -123,18 +123,18 @@ class ThreadWorkPool {
 	}
 
 	bool is_done_dispatching() const {
-		ERR_FAIL_COND_V(current_work == nullptr, true);
+		ERR_FAIL_NULL_V(current_work, true);
 		return index.load(std::memory_order_acquire) >= current_work->max_elements;
 	}
 
 	uint32_t get_work_index() const {
-		ERR_FAIL_COND_V(current_work == nullptr, 0);
+		ERR_FAIL_NULL_V(current_work, 0);
 		uint32_t idx = index.load(std::memory_order_acquire);
 		return Math::min(idx, current_work->max_elements);
 	}
 
 	void end_work() {
-		ERR_FAIL_COND(current_work == nullptr);
+		ERR_FAIL_NULL(current_work);
 		for (uint32_t i = 0; i < threads_working; i++) {
 			threads[i].completed.wait();
 			threads[i].work = nullptr;

include/godot_cpp/variant/variant.hpp

@@ -255,25 +255,33 @@ class Variant {
 	bool operator!=(const Variant &other) const;
 	bool operator<(const Variant &other) const;
 
-	void call(const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
+	void callp(const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
 
 	template <class... Args>
 	Variant call(const StringName &method, Args... args) {
+		std::array<Variant, sizeof...(args)> vargs = { args... };
+		std::array<const Variant *, sizeof...(args)> argptrs;
+		for (size_t i = 0; i < vargs.size(); i++) {
+			argptrs[i] = &vargs[i];
+		}
 		Variant result;
 		GDExtensionCallError error;
-		std::array<GDExtensionConstVariantPtr, sizeof...(Args)> call_args = { Variant(args)... };
-		call(method, call_args.data(), call_args.size(), result, error);
+		callp(method, argptrs.data(), argptrs.size(), result, error);
 		return result;
 	}
 
-	static void call_static(Variant::Type type, const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
+	static void callp_static(Variant::Type type, const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
 
 	template <class... Args>
 	static Variant call_static(Variant::Type type, const StringName &method, Args... args) {
+		std::array<Variant, sizeof...(args)> vargs = { args... };
+		std::array<const Variant *, sizeof...(args)> argptrs;
+		for (size_t i = 0; i < vargs.size(); i++) {
+			argptrs[i] = &vargs[i];
+		}
 		Variant result;
 		GDExtensionCallError error;
-		std::array<GDExtensionConstVariantPtr, sizeof...(Args)> call_args = { Variant(args)... };
-		call_static(type, method, call_args.data(), call_args.size(), result, error);
+		callp_static(type, method, argptrs.data(), argptrs.size(), sizeof...(args), result, error);
 		return result;
 	}
 

src/core/class_db.cpp

@@ -77,7 +77,7 @@ void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinf
 	if (p_setter != String("")) {
 		setter = get_method(p_class, p_setter);
 
-		ERR_FAIL_COND_MSG(!setter, String("Setter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_setter, p_class, p_pinfo.name)));
+		ERR_FAIL_NULL_MSG(setter, String("Setter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_setter, p_class, p_pinfo.name)));
 
 		size_t exp_args = 1 + (p_index >= 0 ? 1 : 0);
 		ERR_FAIL_COND_MSG((int)exp_args != setter->get_argument_count(), String("Setter method '{0}::{1}()' must take a single argument.").format(Array::make(p_class, p_setter)));
@@ -86,7 +86,7 @@ void ClassDB::add_property(const StringName &p_class, const PropertyInfo &p_pinf
 	ERR_FAIL_COND_MSG(p_getter == String(""), String("Getter method must be specified for '{0}::{1}'.").format(Array::make(p_class, p_pinfo.name)));
 
 	MethodBind *getter = get_method(p_class, p_getter);
-	ERR_FAIL_COND_MSG(!getter, String("Getter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_getter, p_class, p_pinfo.name)));
+	ERR_FAIL_NULL_MSG(getter, String("Getter method '{0}::{1}()' not found for property '{2}::{3}'.").format(Array::make(p_class, p_getter, p_class, p_pinfo.name)));
 	{
 		size_t exp_args = 0 + (p_index >= 0 ? 1 : 0);
 		ERR_FAIL_COND_MSG((int)exp_args != getter->get_argument_count(), String("Getter method '{0}::{1}()' must not take any argument.").format(Array::make(p_class, p_getter)));
@@ -318,7 +318,18 @@ GDExtensionClassCallVirtual ClassDB::get_virtual_func(void *p_userdata, GDExtens
 
 const GDExtensionInstanceBindingCallbacks *ClassDB::get_instance_binding_callbacks(const StringName &p_class) {
 	std::unordered_map<StringName, const GDExtensionInstanceBindingCallbacks *>::iterator callbacks_it = instance_binding_callbacks.find(p_class);
-	ERR_FAIL_COND_V_MSG(callbacks_it == instance_binding_callbacks.end(), nullptr, String("Cannot find instance binding callbacks for class '{0}'.").format(Array::make(p_class)));
+	if (likely(callbacks_it != instance_binding_callbacks.end())) {
+		return callbacks_it->second;
+	}
+
+	// If we don't have an instance binding callback for the given class, find the closest parent where we do.
+	StringName class_name = p_class;
+	do {
+		class_name = get_parent_class(class_name);
+		ERR_FAIL_COND_V_MSG(class_name == StringName(), nullptr, String("Cannot find instance binding callbacks for class '{0}'.").format(Array::make(p_class)));
+		callbacks_it = instance_binding_callbacks.find(class_name);
+	} while (callbacks_it == instance_binding_callbacks.end());
+
 	return callbacks_it->second;
 }
 

src/core/memory.cpp

@@ -42,7 +42,7 @@ void *Memory::alloc_static(size_t p_bytes, bool p_pad_align) {
 #endif
 
 	void *mem = internal::gdextension_interface_mem_alloc(p_bytes + (prepad ? PAD_ALIGN : 0));
-	ERR_FAIL_COND_V(!mem, nullptr);
+	ERR_FAIL_NULL_V(mem, nullptr);
 
 	if (prepad) {
 		uint8_t *s8 = (uint8_t *)mem;
@@ -71,7 +71,7 @@ void *Memory::realloc_static(void *p_memory, size_t p_bytes, bool p_pad_align) {
 	if (prepad) {
 		mem -= PAD_ALIGN;
 		mem = (uint8_t *)internal::gdextension_interface_mem_realloc(mem, p_bytes + PAD_ALIGN);
-		ERR_FAIL_COND_V(!mem, nullptr);
+		ERR_FAIL_NULL_V(mem, nullptr);
 		return mem + PAD_ALIGN;
 	} else {
 		return (uint8_t *)internal::gdextension_interface_mem_realloc(mem, p_bytes);

src/godot.cpp

@@ -403,7 +403,7 @@ GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_ge
 	r_initialization->deinitialize = deinitialize_level;
 	r_initialization->minimum_initialization_level = minimum_initialization_level;
 
-	ERR_FAIL_COND_V_MSG(init_callback == nullptr, false, "Initialization callback must be defined.");
+	ERR_FAIL_NULL_V_MSG(init_callback, false, "Initialization callback must be defined.");
 
 	Variant::init_bindings();
 	register_engine_classes();

src/variant/variant.cpp

@@ -549,11 +549,11 @@ bool Variant::operator<(const Variant &other) const {
 	return result.operator bool();
 }
 
-void Variant::call(const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error) {
+void Variant::callp(const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error) {
 	internal::gdextension_interface_variant_call(_native_ptr(), method._native_ptr(), reinterpret_cast<GDExtensionConstVariantPtr *>(args), argcount, r_ret._native_ptr(), &r_error);
 }
 
-void Variant::call_static(Variant::Type type, const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error) {
+void Variant::callp_static(Variant::Type type, const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error) {
 	internal::gdextension_interface_variant_call_static(static_cast<GDExtensionVariantType>(type), method._native_ptr(), reinterpret_cast<GDExtensionConstVariantPtr *>(args), argcount, r_ret._native_ptr(), &r_error);
 }
 

test/project/example.gdextension

@@ -21,3 +21,5 @@ android.debug.x86_64 = "res://bin/libgdexample.android.template_debug.x86_64.so"
 android.release.x86_64 = "res://bin/libgdexample.android.template_release.x86_64.so"
 android.debug.arm64 = "res://bin/libgdexample.android.template_debug.arm64.so"
 android.release.arm64 = "res://bin/libgdexample.android.template_release.arm64.so"
+web.debug.wasm32 = "res://bin/libgdexample.javascript.template_debug.wasm32.wasm"
+web.release.wasm32 = "res://bin/libgdexample.javascript.template_release.wasm32.wasm"

test/project/main.gd

@@ -2,6 +2,9 @@ extends "res://test_base.gd"
 
 var custom_signal_emitted = null
 
+class TestClass:
+	func test(p_msg: String) -> String:
+		return p_msg + " world"
 
 func _ready():
 	var example: Example = $Example
@@ -137,6 +140,10 @@ func _ready():
 	assert_equal(new_tilemap.tile_set, new_tileset)
 	new_tilemap.queue_free()
 
+	# Test variant call.
+	var test_obj = TestClass.new()
+	assert_equal(example.test_variant_call(test_obj), "hello world")
+
 	# Constants.
 	assert_equal(Example.FIRST, 0)
 	assert_equal(Example.ANSWER_TO_EVERYTHING, 42)

test/src/example.cpp

@@ -152,6 +152,8 @@ void Example::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("test_add_child", "node"), &Example::test_add_child);
 	ClassDB::bind_method(D_METHOD("test_set_tileset", "tilemap", "tileset"), &Example::test_set_tileset);
 
+	ClassDB::bind_method(D_METHOD("test_variant_call", "variant"), &Example::test_variant_call);
+
 	ClassDB::bind_method(D_METHOD("test_bitfield", "flags"), &Example::test_bitfield);
 
 	ClassDB::bind_method(D_METHOD("test_rpc", "value"), &Example::test_rpc);
@@ -391,6 +393,10 @@ void Example::test_set_tileset(TileMap *p_tilemap, const Ref<TileSet> &p_tileset
 	p_tilemap->set_tileset(p_tileset);
 }
 
+Variant Example::test_variant_call(Variant p_variant) {
+	return p_variant.call("test", "hello");
+}
+
 BitField<Example::Flags> Example::test_bitfield(BitField<Flags> flags) {
 	return flags;
 }

test/src/example.h

@@ -21,6 +21,7 @@
 #include <godot_cpp/classes/tile_map.hpp>
 #include <godot_cpp/classes/tile_set.hpp>
 #include <godot_cpp/classes/viewport.hpp>
+#include <godot_cpp/variant/variant.hpp>
 
 #include <godot_cpp/core/binder_common.hpp>
 
@@ -133,6 +134,8 @@ class Example : public Control {
 	void test_add_child(Node *p_node);
 	void test_set_tileset(TileMap *p_tilemap, const Ref<TileSet> &p_tileset) const;
 
+	Variant test_variant_call(Variant p_variant);
+
 	BitField<Flags> test_bitfield(BitField<Flags> flags);
 
 	// RPC