Add and require GDSOFTCLASS for Object subclasses that want to cast but do not use GDCLASS.

This commit is contained in:
Lukas Tenbrink 2025-03-31 15:18:06 +02:00
parent e585e6a3eb
commit fa0a3c9c6e
16 changed files with 98 additions and 69 deletions

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@ -37,6 +37,8 @@
#include "core/os/shared_object.h"
class GDExtensionLibraryLoader : public GDExtensionLoader {
GDSOFTCLASS(GDExtensionLibraryLoader, GDExtensionLoader);
friend class GDExtensionManager;
friend class GDExtension;

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@ -35,6 +35,8 @@
class GDExtension;
class GDExtensionLoader : public RefCounted {
GDSOFTCLASS(GDExtensionLoader, GDExtensionLoader);
public:
virtual Error open_library(const String &p_path) = 0;
virtual Error initialize(GDExtensionInterfaceGetProcAddress p_get_proc_address, const Ref<GDExtension> &p_extension, GDExtensionInitialization *r_initialization) = 0;

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@ -83,6 +83,8 @@ public:
/*************************************************************************/
class PListNode : public RefCounted {
GDSOFTCLASS(PListNode, RefCounted);
static int _asn1_size_len(uint8_t p_len_octets);
public:

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@ -386,13 +386,29 @@ struct ObjectGDExtension {
* much alone defines the object model.
*/
// This is a barebones version of GDCLASS,
// only intended for simple classes deriving from Object
// so that they can support the `Object::cast_to()` method.
#define GDSOFTCLASS(m_class, m_inherits) \
public: \
typedef m_class self_type; \
static _FORCE_INLINE_ void *get_class_ptr_static() { \
static int ptr; \
return &ptr; \
} \
virtual bool is_class_ptr(void *p_ptr) const override { \
return (p_ptr == get_class_ptr_static()) || m_inherits::is_class_ptr(p_ptr); \
} \
\
private:
#define GDCLASS(m_class, m_inherits) \
GDSOFTCLASS(m_class, m_inherits) \
private: \
void operator=(const m_class &p_rval) {} \
friend class ::ClassDB; \
\
public: \
typedef m_class self_type; \
static constexpr bool _class_is_enabled = !bool(GD_IS_DEFINED(ClassDB_Disable_##m_class)) && m_inherits::_class_is_enabled; \
virtual String get_class() const override { \
if (_get_extension()) { \
@ -407,10 +423,6 @@ public:
} \
return &_class_name_static; \
} \
static _FORCE_INLINE_ void *get_class_ptr_static() { \
static int ptr; \
return &ptr; \
} \
static _FORCE_INLINE_ String get_class_static() { \
return String(#m_class); \
} \
@ -427,10 +439,6 @@ public:
} \
return (p_class == (#m_class)) ? true : m_inherits::is_class(p_class); \
} \
virtual bool is_class_ptr(void *p_ptr) const override { \
return (p_ptr == get_class_ptr_static()) ? true : m_inherits::is_class_ptr(p_ptr); \
} \
\
static void get_valid_parents_static(List<String> *p_parents) { \
if (m_class::_get_valid_parents_static != m_inherits::_get_valid_parents_static) { \
m_class::_get_valid_parents_static(p_parents); \
@ -440,9 +448,6 @@ public:
} \
\
protected: \
virtual bool _derives_from(const std::type_info &p_type_info) const override { \
return typeid(m_class) == p_type_info || m_inherits::_derives_from(p_type_info); \
} \
_FORCE_INLINE_ static void (*_get_bind_methods())() { \
return &m_class::_bind_methods; \
} \
@ -771,12 +776,6 @@ protected:
mutable VirtualMethodTracker *virtual_method_list = nullptr;
#endif
virtual bool _derives_from(const std::type_info &p_type_info) const {
// This could just be false because nobody would reasonably ask if an Object subclass derives from Object,
// but it would be wrong if somebody actually does ask. It's not too slow to check anyway.
return typeid(Object) == p_type_info;
}
public: // Should be protected, but bug in clang++.
static void initialize_class();
_FORCE_INLINE_ static void register_custom_data_to_otdb() {}
@ -799,23 +798,15 @@ public:
// This is like dynamic_cast, but faster.
// The reason is that we can assume no virtual and multiple inheritance.
static_assert(std::is_base_of_v<Object, T>, "T must be derived from Object");
if constexpr (std::is_same_v<std::decay_t<T>, typename T::self_type>) {
return p_object && p_object->_derives_from(typeid(T)) ? static_cast<T *>(p_object) : nullptr;
} else {
// T does not use GDCLASS, must fall back to dynamic_cast.
return p_object ? dynamic_cast<T *>(p_object) : nullptr;
}
static_assert(std::is_same_v<std::decay_t<T>, typename T::self_type>, "T must use GDCLASS or GDSOFTCLASS");
return p_object && p_object->is_class_ptr(T::get_class_ptr_static()) ? static_cast<T *>(p_object) : nullptr;
}
template <typename T>
static const T *cast_to(const Object *p_object) {
static_assert(std::is_base_of_v<Object, T>, "T must be derived from Object");
if constexpr (std::is_same_v<std::decay_t<T>, typename T::self_type>) {
return p_object && p_object->_derives_from(typeid(T)) ? static_cast<const T *>(p_object) : nullptr;
} else {
// T does not use GDCLASS, must fall back to dynamic_cast.
return p_object ? dynamic_cast<const T *>(p_object) : nullptr;
}
static_assert(std::is_same_v<std::decay_t<T>, typename T::self_type>, "T must use GDCLASS or GDSOFTCLASS");
return p_object && p_object->is_class_ptr(T::get_class_ptr_static()) ? static_cast<const T *>(p_object) : nullptr;
}
enum {

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@ -113,6 +113,8 @@ public:
/*************************************************************************/
class CodeSignBlob : public RefCounted {
GDSOFTCLASS(CodeSignBlob, RefCounted);
public:
virtual PackedByteArray get_hash_sha1() const = 0;
virtual PackedByteArray get_hash_sha256() const = 0;

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@ -40,6 +40,8 @@
struct StreamingBuffer;
class CameraFeedLinux : public CameraFeed {
GDSOFTCLASS(CameraFeedLinux, CameraFeed);
private:
SafeFlag exit_flag;
Thread *thread = nullptr;
@ -64,12 +66,12 @@ private:
public:
String get_device_name() const;
bool activate_feed();
void deactivate_feed();
bool set_format(int p_index, const Dictionary &p_parameters);
Array get_formats() const;
FeedFormat get_format() const;
bool activate_feed() override;
void deactivate_feed() override;
bool set_format(int p_index, const Dictionary &p_parameters) override;
Array get_formats() const override;
FeedFormat get_format() const override;
CameraFeedLinux(const String &p_device_name);
virtual ~CameraFeedLinux();
~CameraFeedLinux() override;
};

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@ -36,6 +36,8 @@
#include "servers/camera_server.h"
class CameraMacOS : public CameraServer {
GDSOFTCLASS(CameraMacOS, CameraServer);
public:
CameraMacOS() = default;

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@ -195,6 +195,8 @@
// CameraFeedMacOS - Subclass for camera feeds in macOS
class CameraFeedMacOS : public CameraFeed {
GDSOFTCLASS(CameraFeedMacOS, CameraFeed);
private:
AVCaptureDevice *device;
MyCaptureSession *capture_session;
@ -206,8 +208,8 @@ public:
void set_device(AVCaptureDevice *p_device);
bool activate_feed();
void deactivate_feed();
bool activate_feed() override;
void deactivate_feed() override;
};
AVCaptureDevice *CameraFeedMacOS::get_device() const {

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@ -41,6 +41,8 @@ class GDScriptAnalyzer;
class GDScriptParser;
class GDScriptParserRef : public RefCounted {
GDSOFTCLASS(GDScriptParserRef, RefCounted);
public:
enum Status {
EMPTY,

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@ -39,6 +39,8 @@
class CryptoMbedTLS;
class TLSContextMbedTLS;
class CryptoKeyMbedTLS : public CryptoKey {
GDSOFTCLASS(CryptoKeyMbedTLS, CryptoKey);
private:
mbedtls_pk_context pkey;
int locks = 0;
@ -51,17 +53,17 @@ public:
static void make_default() { CryptoKey::_create = create; }
static void finalize() { CryptoKey::_create = nullptr; }
virtual Error load(const String &p_path, bool p_public_only);
virtual Error save(const String &p_path, bool p_public_only);
virtual String save_to_string(bool p_public_only);
virtual Error load_from_string(const String &p_string_key, bool p_public_only);
virtual bool is_public_only() const { return public_only; }
Error load(const String &p_path, bool p_public_only) override;
Error save(const String &p_path, bool p_public_only) override;
String save_to_string(bool p_public_only) override;
Error load_from_string(const String &p_string_key, bool p_public_only) override;
bool is_public_only() const override { return public_only; }
CryptoKeyMbedTLS() {
mbedtls_pk_init(&pkey);
locks = 0;
}
~CryptoKeyMbedTLS() {
~CryptoKeyMbedTLS() override {
mbedtls_pk_free(&pkey);
}
@ -73,6 +75,8 @@ public:
};
class X509CertificateMbedTLS : public X509Certificate {
GDSOFTCLASS(X509CertificateMbedTLS, X509Certificate);
private:
mbedtls_x509_crt cert;
int locks;
@ -82,17 +86,17 @@ public:
static void make_default() { X509Certificate::_create = create; }
static void finalize() { X509Certificate::_create = nullptr; }
virtual Error load(const String &p_path);
virtual Error load_from_memory(const uint8_t *p_buffer, int p_len);
virtual Error save(const String &p_path);
virtual String save_to_string();
virtual Error load_from_string(const String &p_string_key);
Error load(const String &p_path) override;
Error load_from_memory(const uint8_t *p_buffer, int p_len) override;
Error save(const String &p_path) override;
String save_to_string() override;
Error load_from_string(const String &p_string_key) override;
X509CertificateMbedTLS() {
mbedtls_x509_crt_init(&cert);
locks = 0;
}
~X509CertificateMbedTLS() {
~X509CertificateMbedTLS() override {
mbedtls_x509_crt_free(&cert);
}
@ -116,12 +120,12 @@ public:
static bool is_md_type_allowed(mbedtls_md_type_t p_md_type);
virtual Error start(HashingContext::HashType p_hash_type, const PackedByteArray &p_key);
virtual Error update(const PackedByteArray &p_data);
virtual PackedByteArray finish();
Error start(HashingContext::HashType p_hash_type, const PackedByteArray &p_key) override;
Error update(const PackedByteArray &p_data) override;
PackedByteArray finish() override;
HMACContextMbedTLS() {}
~HMACContextMbedTLS();
~HMACContextMbedTLS() override;
};
class CryptoMbedTLS : public Crypto {
@ -138,14 +142,14 @@ public:
static void load_default_certificates(const String &p_path);
static mbedtls_md_type_t md_type_from_hashtype(HashingContext::HashType p_hash_type, int &r_size);
virtual PackedByteArray generate_random_bytes(int p_bytes);
virtual Ref<CryptoKey> generate_rsa(int p_bytes);
virtual Ref<X509Certificate> generate_self_signed_certificate(Ref<CryptoKey> p_key, const String &p_issuer_name, const String &p_not_before, const String &p_not_after);
virtual Vector<uint8_t> sign(HashingContext::HashType p_hash_type, const Vector<uint8_t> &p_hash, Ref<CryptoKey> p_key);
virtual bool verify(HashingContext::HashType p_hash_type, const Vector<uint8_t> &p_hash, const Vector<uint8_t> &p_signature, Ref<CryptoKey> p_key);
virtual Vector<uint8_t> encrypt(Ref<CryptoKey> p_key, const Vector<uint8_t> &p_plaintext);
virtual Vector<uint8_t> decrypt(Ref<CryptoKey> p_key, const Vector<uint8_t> &p_ciphertext);
PackedByteArray generate_random_bytes(int p_bytes) override;
Ref<CryptoKey> generate_rsa(int p_bytes) override;
Ref<X509Certificate> generate_self_signed_certificate(Ref<CryptoKey> p_key, const String &p_issuer_name, const String &p_not_before, const String &p_not_after) override;
Vector<uint8_t> sign(HashingContext::HashType p_hash_type, const Vector<uint8_t> &p_hash, Ref<CryptoKey> p_key) override;
bool verify(HashingContext::HashType p_hash_type, const Vector<uint8_t> &p_hash, const Vector<uint8_t> &p_signature, Ref<CryptoKey> p_key) override;
Vector<uint8_t> encrypt(Ref<CryptoKey> p_key, const Vector<uint8_t> &p_plaintext) override;
Vector<uint8_t> decrypt(Ref<CryptoKey> p_key, const Vector<uint8_t> &p_ciphertext) override;
CryptoMbedTLS();
~CryptoMbedTLS();
~CryptoMbedTLS() override;
};

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@ -44,10 +44,10 @@ public:
static void initialize();
static void finalize();
virtual Error setup(Ref<TLSOptions> p_options);
virtual void stop();
virtual Ref<PacketPeerDTLS> take_connection(Ref<PacketPeerUDP> p_peer);
Error setup(Ref<TLSOptions> p_options) override;
void stop() override;
Ref<PacketPeerDTLS> take_connection(Ref<PacketPeerUDP> p_peer) override;
DTLSServerMbedTLS();
~DTLSServerMbedTLS();
~DTLSServerMbedTLS() override;
};

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@ -56,7 +56,7 @@ public:
void clear();
CookieContextMbedTLS();
~CookieContextMbedTLS();
~CookieContextMbedTLS() override;
};
class TLSContextMbedTLS : public RefCounted {
@ -83,5 +83,5 @@ public:
mbedtls_ssl_context *get_context();
TLSContextMbedTLS();
~TLSContextMbedTLS();
~TLSContextMbedTLS() override;
};

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@ -38,7 +38,7 @@ class RenderingDevice;
#endif
class DisplayServerAndroid : public DisplayServer {
// No need to register with GDCLASS, it's platform-specific and nothing is added.
GDSOFTCLASS(DisplayServerAndroid, DisplayServer);
String rendering_driver;

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@ -88,6 +88,8 @@ class WaylandThread {
public:
// Messages used for exchanging information between Godot's and Wayland's thread.
class Message : public RefCounted {
GDSOFTCLASS(Message, RefCounted);
public:
Message() {}
virtual ~Message() = default;
@ -95,6 +97,8 @@ public:
// Message data for window rect changes.
class WindowRectMessage : public Message {
GDSOFTCLASS(WindowRectMessage, Message);
public:
// NOTE: This is in "scaled" terms. For example, if there's a 1920x1080 rect
// with a scale factor of 2, the actual value of `rect` will be 3840x2160.
@ -102,27 +106,37 @@ public:
};
class WindowEventMessage : public Message {
GDSOFTCLASS(WindowEventMessage, Message);
public:
DisplayServer::WindowEvent event;
};
class InputEventMessage : public Message {
GDSOFTCLASS(InputEventMessage, Message);
public:
Ref<InputEvent> event;
};
class DropFilesEventMessage : public Message {
GDSOFTCLASS(DropFilesEventMessage, Message);
public:
Vector<String> files;
};
class IMEUpdateEventMessage : public Message {
GDSOFTCLASS(IMEUpdateEventMessage, Message);
public:
String text;
Vector2i selection;
};
class IMECommitEventMessage : public Message {
GDSOFTCLASS(IMECommitEventMessage, Message);
public:
String text;
};

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@ -64,6 +64,8 @@ extern int godot_js_wrapper_object_transfer_buffer(int p_id, void *p_byte_arr, v
};
class JavaScriptObjectImpl : public JavaScriptObject {
GDSOFTCLASS(JavaScriptObjectImpl, JavaScriptObject);
private:
friend class JavaScriptBridge;

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@ -55,6 +55,8 @@ public:
};
class ObjectSubclass : public Object {
GDSOFTCLASS(ObjectSubclass, Object);
public:
int value = 1;
};