csharp_script.h 21 KB

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  1. /*************************************************************************/
  2. /* csharp_script.h */
  3. /*************************************************************************/
  4. /* This file is part of: */
  5. /* GODOT ENGINE */
  6. /* https://godotengine.org */
  7. /*************************************************************************/
  8. /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
  9. /* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
  10. /* */
  11. /* Permission is hereby granted, free of charge, to any person obtaining */
  12. /* a copy of this software and associated documentation files (the */
  13. /* "Software"), to deal in the Software without restriction, including */
  14. /* without limitation the rights to use, copy, modify, merge, publish, */
  15. /* distribute, sublicense, and/or sell copies of the Software, and to */
  16. /* permit persons to whom the Software is furnished to do so, subject to */
  17. /* the following conditions: */
  18. /* */
  19. /* The above copyright notice and this permission notice shall be */
  20. /* included in all copies or substantial portions of the Software. */
  21. /* */
  22. /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
  23. /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
  24. /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  25. /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
  26. /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
  27. /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
  28. /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
  29. /*************************************************************************/
  30. #ifndef CSHARP_SCRIPT_H
  31. #define CSHARP_SCRIPT_H
  32. #include "core/doc_data.h"
  33. #include "core/io/resource_loader.h"
  34. #include "core/io/resource_saver.h"
  35. #include "core/object/script_language.h"
  36. #include "core/templates/self_list.h"
  37. #include "mono_gc_handle.h"
  38. #include "mono_gd/gd_mono.h"
  39. #include "mono_gd/gd_mono_header.h"
  40. #include "mono_gd/gd_mono_internals.h"
  41. #ifdef TOOLS_ENABLED
  42. #include "editor/editor_plugin.h"
  43. #endif
  44. class CSharpScript;
  45. class CSharpInstance;
  46. class CSharpLanguage;
  47. #ifdef NO_SAFE_CAST
  48. template <typename TScriptInstance, typename TScriptLanguage>
  49. TScriptInstance *cast_script_instance(ScriptInstance *p_inst) {
  50. if (!p_inst)
  51. return nullptr;
  52. return p_inst->get_language() == TScriptLanguage::get_singleton() ? static_cast<TScriptInstance *>(p_inst) : nullptr;
  53. }
  54. #else
  55. template <typename TScriptInstance, typename TScriptLanguage>
  56. TScriptInstance *cast_script_instance(ScriptInstance *p_inst) {
  57. return dynamic_cast<TScriptInstance *>(p_inst);
  58. }
  59. #endif
  60. #define CAST_CSHARP_INSTANCE(m_inst) (cast_script_instance<CSharpInstance, CSharpLanguage>(m_inst))
  61. struct DotNetScriptLookupInfo {
  62. String class_namespace;
  63. String class_name;
  64. GDMonoClass *script_class = nullptr;
  65. DotNetScriptLookupInfo() {} // Required by HashMap...
  66. DotNetScriptLookupInfo(const String &p_class_namespace, const String &p_class_name, GDMonoClass *p_script_class) :
  67. class_namespace(p_class_namespace), class_name(p_class_name), script_class(p_script_class) {
  68. }
  69. };
  70. class CSharpScript : public Script {
  71. GDCLASS(CSharpScript, Script);
  72. public:
  73. struct SignalParameter {
  74. String name;
  75. Variant::Type type;
  76. bool nil_is_variant = false;
  77. };
  78. struct EventSignal {
  79. GDMonoField *field = nullptr;
  80. GDMonoMethod *invoke_method = nullptr;
  81. Vector<SignalParameter> parameters;
  82. };
  83. private:
  84. friend class CSharpInstance;
  85. friend class CSharpLanguage;
  86. friend struct CSharpScriptDepSort;
  87. bool tool = false;
  88. bool valid = false;
  89. bool builtin;
  90. GDMonoClass *base = nullptr;
  91. GDMonoClass *native = nullptr;
  92. GDMonoClass *script_class = nullptr;
  93. Ref<CSharpScript> base_cache; // TODO what's this for?
  94. Set<Object *> instances;
  95. #ifdef GD_MONO_HOT_RELOAD
  96. struct StateBackup {
  97. // TODO
  98. // Replace with buffer containing the serialized state of managed scripts.
  99. // Keep variant state backup to use only with script instance placeholders.
  100. List<Pair<StringName, Variant>> properties;
  101. List<Pair<StringName, Array>> event_signals;
  102. };
  103. Set<ObjectID> pending_reload_instances;
  104. Map<ObjectID, StateBackup> pending_reload_state;
  105. StringName tied_class_name_for_reload;
  106. StringName tied_class_namespace_for_reload;
  107. #endif
  108. String source;
  109. StringName name;
  110. SelfList<CSharpScript> script_list = this;
  111. Map<StringName, Vector<SignalParameter>> _signals;
  112. Map<StringName, EventSignal> event_signals;
  113. bool signals_invalidated = true;
  114. Vector<ScriptNetData> rpc_functions;
  115. Vector<ScriptNetData> rpc_variables;
  116. #ifdef TOOLS_ENABLED
  117. List<PropertyInfo> exported_members_cache; // members_cache
  118. Map<StringName, Variant> exported_members_defval_cache; // member_default_values_cache
  119. Set<PlaceHolderScriptInstance *> placeholders;
  120. bool source_changed_cache = false;
  121. bool placeholder_fallback_enabled = false;
  122. bool exports_invalidated = true;
  123. void _update_exports_values(Map<StringName, Variant> &values, List<PropertyInfo> &propnames);
  124. void _update_member_info_no_exports();
  125. void _placeholder_erased(PlaceHolderScriptInstance *p_placeholder) override;
  126. #endif
  127. #if defined(TOOLS_ENABLED) || defined(DEBUG_ENABLED)
  128. Set<StringName> exported_members_names;
  129. #endif
  130. Map<StringName, PropertyInfo> member_info;
  131. void _clear();
  132. void _update_name();
  133. void load_script_signals(GDMonoClass *p_class, GDMonoClass *p_native_class);
  134. bool _get_signal(GDMonoClass *p_class, GDMonoMethod *p_delegate_invoke, Vector<SignalParameter> &params);
  135. bool _update_exports();
  136. bool _get_member_export(IMonoClassMember *p_member, bool p_inspect_export, PropertyInfo &r_prop_info, bool &r_exported);
  137. #ifdef TOOLS_ENABLED
  138. static int _try_get_member_export_hint(IMonoClassMember *p_member, ManagedType p_type, Variant::Type p_variant_type, bool p_allow_generics, PropertyHint &r_hint, String &r_hint_string);
  139. #endif
  140. CSharpInstance *_create_instance(const Variant **p_args, int p_argcount, Object *p_owner, bool p_isref, Callable::CallError &r_error);
  141. Variant _new(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
  142. // Do not use unless you know what you are doing
  143. friend void GDMonoInternals::tie_managed_to_unmanaged(MonoObject *, Object *);
  144. static Ref<CSharpScript> create_for_managed_type(GDMonoClass *p_class, GDMonoClass *p_native);
  145. static void update_script_class_info(Ref<CSharpScript> p_script);
  146. static void initialize_for_managed_type(Ref<CSharpScript> p_script, GDMonoClass *p_class, GDMonoClass *p_native);
  147. MultiplayerAPI::RPCMode _member_get_rpc_mode(IMonoClassMember *p_member) const;
  148. protected:
  149. static void _bind_methods();
  150. Variant call(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
  151. void _resource_path_changed() override;
  152. bool _get(const StringName &p_name, Variant &r_ret) const;
  153. bool _set(const StringName &p_name, const Variant &p_value);
  154. void _get_property_list(List<PropertyInfo> *p_properties) const;
  155. public:
  156. bool can_instance() const override;
  157. StringName get_instance_base_type() const override;
  158. ScriptInstance *instance_create(Object *p_this) override;
  159. PlaceHolderScriptInstance *placeholder_instance_create(Object *p_this) override;
  160. bool instance_has(const Object *p_this) const override;
  161. bool has_source_code() const override;
  162. String get_source_code() const override;
  163. void set_source_code(const String &p_code) override;
  164. #ifdef TOOLS_ENABLED
  165. virtual const Vector<DocData::ClassDoc> &get_documentation() const override {
  166. // TODO
  167. static Vector<DocData::ClassDoc> docs;
  168. return docs;
  169. }
  170. #endif // TOOLS_ENABLED
  171. Error reload(bool p_keep_state = false) override;
  172. bool has_script_signal(const StringName &p_signal) const override;
  173. void get_script_signal_list(List<MethodInfo> *r_signals) const override;
  174. bool get_property_default_value(const StringName &p_property, Variant &r_value) const override;
  175. void get_script_property_list(List<PropertyInfo> *p_list) const override;
  176. void update_exports() override;
  177. void get_members(Set<StringName> *p_members) override;
  178. bool is_tool() const override { return tool; }
  179. bool is_valid() const override { return valid; }
  180. bool inherits_script(const Ref<Script> &p_script) const override;
  181. Ref<Script> get_base_script() const override;
  182. ScriptLanguage *get_language() const override;
  183. void get_script_method_list(List<MethodInfo> *p_list) const override;
  184. bool has_method(const StringName &p_method) const override;
  185. MethodInfo get_method_info(const StringName &p_method) const override;
  186. int get_member_line(const StringName &p_member) const override;
  187. Vector<ScriptNetData> get_rpc_methods() const override;
  188. uint16_t get_rpc_method_id(const StringName &p_method) const override;
  189. StringName get_rpc_method(const uint16_t p_rpc_method_id) const override;
  190. MultiplayerAPI::RPCMode get_rpc_mode_by_id(const uint16_t p_rpc_method_id) const override;
  191. MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const override;
  192. Vector<ScriptNetData> get_rset_properties() const override;
  193. uint16_t get_rset_property_id(const StringName &p_variable) const override;
  194. StringName get_rset_property(const uint16_t p_variable_id) const override;
  195. MultiplayerAPI::RPCMode get_rset_mode_by_id(const uint16_t p_variable_id) const override;
  196. MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const override;
  197. #ifdef TOOLS_ENABLED
  198. bool is_placeholder_fallback_enabled() const override { return placeholder_fallback_enabled; }
  199. #endif
  200. Error load_source_code(const String &p_path);
  201. CSharpScript();
  202. ~CSharpScript();
  203. };
  204. class CSharpInstance : public ScriptInstance {
  205. friend class CSharpScript;
  206. friend class CSharpLanguage;
  207. Object *owner = nullptr;
  208. bool base_ref = false;
  209. bool ref_dying = false;
  210. bool unsafe_referenced = false;
  211. bool predelete_notified = false;
  212. bool destructing_script_instance = false;
  213. Ref<CSharpScript> script;
  214. MonoGCHandleData gchandle;
  215. bool _reference_owner_unsafe();
  216. /*
  217. * If true is returned, the caller must memdelete the script instance's owner.
  218. */
  219. bool _unreference_owner_unsafe();
  220. /*
  221. * If nullptr is returned, the caller must destroy the script instance by removing it from its owner.
  222. */
  223. MonoObject *_internal_new_managed();
  224. // Do not use unless you know what you are doing
  225. friend void GDMonoInternals::tie_managed_to_unmanaged(MonoObject *, Object *);
  226. static CSharpInstance *create_for_managed_type(Object *p_owner, CSharpScript *p_script, const MonoGCHandleData &p_gchandle);
  227. void get_properties_state_for_reloading(List<Pair<StringName, Variant>> &r_state);
  228. void get_event_signals_state_for_reloading(List<Pair<StringName, Array>> &r_state);
  229. public:
  230. MonoObject *get_mono_object() const;
  231. _FORCE_INLINE_ bool is_destructing_script_instance() { return destructing_script_instance; }
  232. Object *get_owner() override;
  233. bool set(const StringName &p_name, const Variant &p_value) override;
  234. bool get(const StringName &p_name, Variant &r_ret) const override;
  235. void get_property_list(List<PropertyInfo> *p_properties) const override;
  236. Variant::Type get_property_type(const StringName &p_name, bool *r_is_valid) const override;
  237. /* TODO */ void get_method_list(List<MethodInfo> *p_list) const override {}
  238. bool has_method(const StringName &p_method) const override;
  239. Variant call(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
  240. void mono_object_disposed(MonoObject *p_obj);
  241. /*
  242. * If 'r_delete_owner' is set to true, the caller must memdelete the script instance's owner. Otherwise, if
  243. * 'r_remove_script_instance' is set to true, the caller must destroy the script instance by removing it from its owner.
  244. */
  245. void mono_object_disposed_baseref(MonoObject *p_obj, bool p_is_finalizer, bool &r_delete_owner, bool &r_remove_script_instance);
  246. void connect_event_signals();
  247. void disconnect_event_signals();
  248. void refcount_incremented() override;
  249. bool refcount_decremented() override;
  250. Vector<ScriptNetData> get_rpc_methods() const override;
  251. uint16_t get_rpc_method_id(const StringName &p_method) const override;
  252. StringName get_rpc_method(const uint16_t p_rpc_method_id) const override;
  253. MultiplayerAPI::RPCMode get_rpc_mode_by_id(const uint16_t p_rpc_method_id) const override;
  254. MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const override;
  255. Vector<ScriptNetData> get_rset_properties() const override;
  256. uint16_t get_rset_property_id(const StringName &p_variable) const override;
  257. StringName get_rset_property(const uint16_t p_variable_id) const override;
  258. MultiplayerAPI::RPCMode get_rset_mode_by_id(const uint16_t p_variable_id) const override;
  259. MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const override;
  260. void notification(int p_notification) override;
  261. void _call_notification(int p_notification);
  262. String to_string(bool *r_valid) override;
  263. Ref<Script> get_script() const override;
  264. ScriptLanguage *get_language() override;
  265. CSharpInstance(const Ref<CSharpScript> &p_script);
  266. ~CSharpInstance();
  267. };
  268. struct CSharpScriptBinding {
  269. bool inited = false;
  270. StringName type_name;
  271. GDMonoClass *wrapper_class = nullptr;
  272. MonoGCHandleData gchandle;
  273. Object *owner = nullptr;
  274. CSharpScriptBinding() {}
  275. };
  276. class ManagedCallableMiddleman : public Object {
  277. GDCLASS(ManagedCallableMiddleman, Object);
  278. };
  279. class CSharpLanguage : public ScriptLanguage {
  280. friend class CSharpScript;
  281. friend class CSharpInstance;
  282. static CSharpLanguage *singleton;
  283. bool finalizing = false;
  284. bool finalized = false;
  285. GDMono *gdmono = nullptr;
  286. SelfList<CSharpScript>::List script_list;
  287. Mutex script_instances_mutex;
  288. Mutex script_gchandle_release_mutex;
  289. Mutex language_bind_mutex;
  290. Map<Object *, CSharpScriptBinding> script_bindings;
  291. #ifdef DEBUG_ENABLED
  292. // List of unsafe object references
  293. Map<ObjectID, int> unsafe_object_references;
  294. Mutex unsafe_object_references_lock;
  295. #endif
  296. ManagedCallableMiddleman *managed_callable_middleman = memnew(ManagedCallableMiddleman);
  297. struct StringNameCache {
  298. StringName _signal_callback;
  299. StringName _set;
  300. StringName _get;
  301. StringName _get_property_list;
  302. StringName _notification;
  303. StringName _script_source;
  304. StringName dotctor; // .ctor
  305. StringName on_before_serialize; // OnBeforeSerialize
  306. StringName on_after_deserialize; // OnAfterDeserialize
  307. StringName delegate_invoke_method_name;
  308. StringNameCache();
  309. };
  310. int lang_idx = -1;
  311. HashMap<String, DotNetScriptLookupInfo> dotnet_script_lookup_map;
  312. void lookup_script_for_class(GDMonoClass *p_class);
  313. // For debug_break and debug_break_parse
  314. int _debug_parse_err_line = -1;
  315. String _debug_parse_err_file;
  316. String _debug_error;
  317. friend class GDMono;
  318. void _on_scripts_domain_unloaded();
  319. #ifdef TOOLS_ENABLED
  320. EditorPlugin *godotsharp_editor = nullptr;
  321. static void _editor_init_callback();
  322. #endif
  323. public:
  324. StringNameCache string_names;
  325. const Mutex &get_language_bind_mutex() { return language_bind_mutex; }
  326. _FORCE_INLINE_ int get_language_index() { return lang_idx; }
  327. void set_language_index(int p_idx);
  328. _FORCE_INLINE_ const StringNameCache &get_string_names() { return string_names; }
  329. _FORCE_INLINE_ static CSharpLanguage *get_singleton() { return singleton; }
  330. #ifdef TOOLS_ENABLED
  331. _FORCE_INLINE_ EditorPlugin *get_godotsharp_editor() const { return godotsharp_editor; }
  332. #endif
  333. static void release_script_gchandle(MonoGCHandleData &p_gchandle);
  334. static void release_script_gchandle(MonoObject *p_expected_obj, MonoGCHandleData &p_gchandle);
  335. bool debug_break(const String &p_error, bool p_allow_continue = true);
  336. bool debug_break_parse(const String &p_file, int p_line, const String &p_error);
  337. #ifdef GD_MONO_HOT_RELOAD
  338. bool is_assembly_reloading_needed();
  339. void reload_assemblies(bool p_soft_reload);
  340. #endif
  341. _FORCE_INLINE_ ManagedCallableMiddleman *get_managed_callable_middleman() const { return managed_callable_middleman; }
  342. void lookup_scripts_in_assembly(GDMonoAssembly *p_assembly);
  343. const DotNetScriptLookupInfo *lookup_dotnet_script(const String &p_script_path) const {
  344. return dotnet_script_lookup_map.getptr(p_script_path);
  345. }
  346. String get_name() const override;
  347. /* LANGUAGE FUNCTIONS */
  348. String get_type() const override;
  349. String get_extension() const override;
  350. Error execute_file(const String &p_path) override;
  351. void init() override;
  352. void finish() override;
  353. void finalize();
  354. /* EDITOR FUNCTIONS */
  355. void get_reserved_words(List<String> *p_words) const override;
  356. void get_comment_delimiters(List<String> *p_delimiters) const override;
  357. void get_string_delimiters(List<String> *p_delimiters) const override;
  358. Ref<Script> get_template(const String &p_class_name, const String &p_base_class_name) const override;
  359. bool is_using_templates() override;
  360. void make_template(const String &p_class_name, const String &p_base_class_name, Ref<Script> &p_script) override;
  361. /* TODO */ bool validate(const String &p_script, int &r_line_error, int &r_col_error,
  362. String &r_test_error, const String &p_path, List<String> *r_functions,
  363. List<ScriptLanguage::Warning> *r_warnings = nullptr, Set<int> *r_safe_lines = nullptr) const override {
  364. return true;
  365. }
  366. String validate_path(const String &p_path) const override;
  367. Script *create_script() const override;
  368. bool has_named_classes() const override;
  369. bool supports_builtin_mode() const override;
  370. /* TODO? */ int find_function(const String &p_function, const String &p_code) const override { return -1; }
  371. String make_function(const String &p_class, const String &p_name, const PackedStringArray &p_args) const override;
  372. virtual String _get_indentation() const;
  373. /* TODO? */ void auto_indent_code(String &p_code, int p_from_line, int p_to_line) const override {}
  374. /* TODO */ void add_global_constant(const StringName &p_variable, const Variant &p_value) override {}
  375. /* DEBUGGER FUNCTIONS */
  376. String debug_get_error() const override;
  377. int debug_get_stack_level_count() const override;
  378. int debug_get_stack_level_line(int p_level) const override;
  379. String debug_get_stack_level_function(int p_level) const override;
  380. String debug_get_stack_level_source(int p_level) const override;
  381. /* TODO */ void debug_get_stack_level_locals(int p_level, List<String> *p_locals, List<Variant> *p_values, int p_max_subitems, int p_max_depth) override {}
  382. /* TODO */ void debug_get_stack_level_members(int p_level, List<String> *p_members, List<Variant> *p_values, int p_max_subitems, int p_max_depth) override {}
  383. /* TODO */ void debug_get_globals(List<String> *p_locals, List<Variant> *p_values, int p_max_subitems, int p_max_depth) override {}
  384. /* TODO */ String debug_parse_stack_level_expression(int p_level, const String &p_expression, int p_max_subitems, int p_max_depth) override { return ""; }
  385. Vector<StackInfo> debug_get_current_stack_info() override;
  386. /* PROFILING FUNCTIONS */
  387. /* TODO */ void profiling_start() override {}
  388. /* TODO */ void profiling_stop() override {}
  389. /* TODO */ int profiling_get_accumulated_data(ProfilingInfo *p_info_arr, int p_info_max) override { return 0; }
  390. /* TODO */ int profiling_get_frame_data(ProfilingInfo *p_info_arr, int p_info_max) override { return 0; }
  391. void frame() override;
  392. /* TODO? */ void get_public_functions(List<MethodInfo> *p_functions) const override {}
  393. /* TODO? */ void get_public_constants(List<Pair<String, Variant>> *p_constants) const override {}
  394. void reload_all_scripts() override;
  395. void reload_tool_script(const Ref<Script> &p_script, bool p_soft_reload) override;
  396. /* LOADER FUNCTIONS */
  397. void get_recognized_extensions(List<String> *p_extensions) const override;
  398. #ifdef TOOLS_ENABLED
  399. Error open_in_external_editor(const Ref<Script> &p_script, int p_line, int p_col) override;
  400. bool overrides_external_editor() override;
  401. #endif
  402. /* THREAD ATTACHING */
  403. void thread_enter() override;
  404. void thread_exit() override;
  405. // Don't use these. I'm watching you
  406. void *alloc_instance_binding_data(Object *p_object) override;
  407. void free_instance_binding_data(void *p_data) override;
  408. void refcount_incremented_instance_binding(Object *p_object) override;
  409. bool refcount_decremented_instance_binding(Object *p_object) override;
  410. Map<Object *, CSharpScriptBinding>::Element *insert_script_binding(Object *p_object, const CSharpScriptBinding &p_script_binding);
  411. bool setup_csharp_script_binding(CSharpScriptBinding &r_script_binding, Object *p_object);
  412. #ifdef DEBUG_ENABLED
  413. Vector<StackInfo> stack_trace_get_info(MonoObject *p_stack_trace);
  414. #endif
  415. void post_unsafe_reference(Object *p_obj);
  416. void pre_unsafe_unreference(Object *p_obj);
  417. CSharpLanguage();
  418. ~CSharpLanguage();
  419. };
  420. class ResourceFormatLoaderCSharpScript : public ResourceFormatLoader {
  421. public:
  422. RES load(const String &p_path, const String &p_original_path = "", Error *r_error = nullptr, bool p_use_sub_threads = false, float *r_progress = nullptr, CacheMode p_cache_mode = CACHE_MODE_REUSE) override;
  423. void get_recognized_extensions(List<String> *p_extensions) const override;
  424. bool handles_type(const String &p_type) const override;
  425. String get_resource_type(const String &p_path) const override;
  426. };
  427. class ResourceFormatSaverCSharpScript : public ResourceFormatSaver {
  428. public:
  429. Error save(const String &p_path, const RES &p_resource, uint32_t p_flags = 0) override;
  430. void get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const override;
  431. bool recognize(const RES &p_resource) const override;
  432. };
  433. #endif // CSHARP_SCRIPT_H