/**************************************************************************/
/* csharp_script.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef CSHARP_SCRIPT_H
#define CSHARP_SCRIPT_H
#include "mono_gc_handle.h"
#include "mono_gd/gd_mono.h"
#include "core/doc_data.h"
#include "core/io/resource_loader.h"
#include "core/io/resource_saver.h"
#include "core/object/script_language.h"
#include "core/templates/self_list.h"
#ifdef TOOLS_ENABLED
#include "editor/plugins/editor_plugin.h"
#endif
class CSharpScript;
class CSharpInstance;
class CSharpLanguage;
template <typename TScriptInstance, typename TScriptLanguage>
TScriptInstance *cast_script_instance(ScriptInstance *p_inst) {
return dynamic_cast<TScriptInstance *>(p_inst);
}
#define CAST_CSHARP_INSTANCE(m_inst) (cast_script_instance<CSharpInstance, CSharpLanguage>(m_inst))
class CSharpScript : public Script {
GDCLASS(CSharpScript, Script);
friend class CSharpInstance;
friend class CSharpLanguage;
public:
struct TypeInfo {
/**
* Name of the C# class.
*/
String class_name;
/**
* Path to the icon that will be used for this class by the editor.
*/
String icon_path;
/**
* Script is marked as tool and runs in the editor.
*/
bool is_tool = false;
/**
* Script is marked as global class and will be registered in the editor.
* Registered classes can be created using certain editor dialogs and
* can be referenced by name from other languages that support the feature.
*/
bool is_global_class = false;
/**
* Script is declared abstract.
*/
bool is_abstract = false;
/**
* The C# type that corresponds to this script is a constructed generic type.
* E.g.: `Dictionary<int, string>`
*/
bool is_constructed_generic_type = false;
/**
* The C# type that corresponds to this script is a generic type definition.
* E.g.: `Dictionary<,>`
*/
bool is_generic_type_definition = false;
/**
* The C# type that corresponds to this script contains generic type parameters,
* regardless of whether the type parameters are bound or not.
*/
bool is_generic() const {
return is_constructed_generic_type || is_generic_type_definition;
}
/**
* Check if the script can be instantiated.
* C# types can't be instantiated if they are abstract or contain generic
* type parameters, but a CSharpScript is still created for them.
*/
bool can_instantiate() const {
return !is_abstract && !is_generic_type_definition;
}
};
private:
/**
* Contains the C# type information for this script.
*/
TypeInfo type_info;
/**
* Scripts are valid when the corresponding C# class is found and used
* to extract the script info using the [update_script_class_info] method.
*/
bool valid = false;
/**
* Scripts extract info from the C# class in the reload methods but,
* if the reload is not invalidated, then the current extracted info
* is still valid and there's no need to reload again.
*/
bool reload_invalidated = false;
/**
* Base script that this script derives from, or null if it derives from a
* native Godot class.
*/
Ref<CSharpScript> base_script;
HashSet<Object *> instances;
#ifdef GD_MONO_HOT_RELOAD
struct StateBackup {
// TODO
// Replace with buffer containing the serialized state of managed scripts.
// Keep variant state backup to use only with script instance placeholders.
List<Pair<StringName, Variant>> properties;
Dictionary event_signals;
};
HashSet<ObjectID> pending_reload_instances;
RBMap<ObjectID, StateBackup> pending_reload_state;
bool was_tool_before_reload = false;
HashSet<ObjectID> pending_replace_placeholders;
#endif
/**
* Script source code.
*/
String source;
SelfList<CSharpScript> script_list = this;
Dictionary rpc_config;
struct EventSignalInfo {
StringName name; // MethodInfo stores a string...
MethodInfo method_info;
};
struct CSharpMethodInfo {
StringName name; // MethodInfo stores a string...
MethodInfo method_info;
};
Vector<EventSignalInfo> event_signals;
Vector<CSharpMethodInfo> methods;
#ifdef TOOLS_ENABLED
List<PropertyInfo> exported_members_cache; // members_cache
HashMap<StringName, Variant> exported_members_defval_cache; // member_default_values_cache
HashSet<PlaceHolderScriptInstance *> placeholders;
bool source_changed_cache = false;
bool placeholder_fallback_enabled = false;
bool exports_invalidated = true;
void _update_exports_values(HashMap<StringName, Variant> &values, List<PropertyInfo> &propnames);
void _placeholder_erased(PlaceHolderScriptInstance *p_placeholder) override;
#endif
#if defined(TOOLS_ENABLED) || defined(DEBUG_ENABLED)
HashSet<StringName> exported_members_names;
#endif
HashMap<StringName, PropertyInfo> member_info;
void _clear();
static void GD_CLR_STDCALL _add_property_info_list_callback(CSharpScript *p_script, const String *p_current_class_name, void *p_props, int32_t p_count);
#ifdef TOOLS_ENABLED
static void GD_CLR_STDCALL _add_property_default_values_callback(CSharpScript *p_script, void *p_def_vals, int32_t p_count);
#endif
bool _update_exports(PlaceHolderScriptInstance *p_instance_to_update = nullptr);
CSharpInstance *_create_instance(const Variant **p_args, int p_argcount, Object *p_owner, bool p_is_ref_counted, Callable::CallError &r_error);
Variant _new(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
// Do not use unless you know what you are doing
static void update_script_class_info(Ref<CSharpScript> p_script);
void _get_script_signal_list(List<MethodInfo> *r_signals, bool p_include_base) const;
protected:
static void _bind_methods();
bool _get(const StringName &p_name, Variant &r_ret) const;
bool _set(const StringName &p_name, const Variant &p_value);
void _get_property_list(List<PropertyInfo> *p_properties) const;
public:
static void reload_registered_script(Ref<CSharpScript> p_script);
bool can_instantiate() const override;
StringName get_instance_base_type() const override;
ScriptInstance *instance_create(Object *p_this) override;
PlaceHolderScriptInstance *placeholder_instance_create(Object *p_this) override;
bool instance_has(const Object *p_this) const override;
bool has_source_code() const override;
String get_source_code() const override;
void set_source_code(const String &p_code) override;
#ifdef TOOLS_ENABLED
virtual Vector<DocData::ClassDoc> get_documentation() const override {
// TODO
Vector<DocData::ClassDoc> docs;
return docs;
}
virtual String get_class_icon_path() const override {
return type_info.icon_path;
}
#endif // TOOLS_ENABLED
Error reload(bool p_keep_state = false) override;
bool has_script_signal(const StringName &p_signal) const override;
void get_script_signal_list(List<MethodInfo> *r_signals) const override;
bool get_property_default_value(const StringName &p_property, Variant &r_value) const override;
void get_script_property_list(List<PropertyInfo> *r_list) const override;
void update_exports() override;
void get_members(HashSet<StringName> *p_members) override;
bool is_tool() const override {
return type_info.is_tool;
}
bool is_valid() const override {
return valid;
}
bool is_abstract() const override {
return type_info.is_abstract;
}
bool inherits_script(const Ref<Script> &p_script) const override;
Ref<Script> get_base_script() const override;
StringName get_global_name() const override;
ScriptLanguage *get_language() const override;
void get_script_method_list(List<MethodInfo> *p_list) const override;
bool has_method(const StringName &p_method) const override;
virtual int get_script_method_argument_count(const StringName &p_method, bool *r_is_valid = nullptr) const override;
MethodInfo get_method_info(const StringName &p_method) const override;
Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
int get_member_line(const StringName &p_member) const override;
Variant get_rpc_config() const override;
#ifdef TOOLS_ENABLED
bool is_placeholder_fallback_enabled() const override {
return placeholder_fallback_enabled;
}
#endif
Error load_source_code(const String &p_path);
CSharpScript();
~CSharpScript();
};
class CSharpInstance : public ScriptInstance {
friend class CSharpScript;
friend class CSharpLanguage;
Object *owner = nullptr;
bool base_ref_counted = false;
bool ref_dying = false;
bool unsafe_referenced = false;
bool predelete_notified = false;
bool destructing_script_instance = false;
Ref<CSharpScript> script;
MonoGCHandleData gchandle;
List<Callable> connected_event_signals;
bool _reference_owner_unsafe();
/*
* If true is returned, the caller must memdelete the script instance's owner.
*/
bool _unreference_owner_unsafe();
/*
* If false is returned, the caller must destroy the script instance by removing it from its owner.
*/
bool _internal_new_managed();
// Do not use unless you know what you are doing
static CSharpInstance *create_for_managed_type(Object *p_owner, CSharpScript *p_script, const MonoGCHandleData &p_gchandle);
public:
_FORCE_INLINE_ bool is_destructing_script_instance() { return destructing_script_instance; }
_FORCE_INLINE_ GCHandleIntPtr get_gchandle_intptr() { return gchandle.get_intptr(); }
Object *get_owner() override;
bool set(const StringName &p_name, const Variant &p_value) override;
bool get(const StringName &p_name, Variant &r_ret) const override;
void get_property_list(List<PropertyInfo> *p_properties) const override;
Variant::Type get_property_type(const StringName &p_name, bool *r_is_valid) const override;
virtual void validate_property(PropertyInfo &p_property) const override;
bool property_can_revert(const StringName &p_name) const override;
bool property_get_revert(const StringName &p_name, Variant &r_ret) const override;
void get_method_list(List<MethodInfo> *p_list) const override;
bool has_method(const StringName &p_method) const override;
virtual int get_method_argument_count(const StringName &p_method, bool *r_is_valid = nullptr) const override;
Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
void mono_object_disposed(GCHandleIntPtr p_gchandle_to_free);
/*
* If 'r_delete_owner' is set to true, the caller must memdelete the script instance's owner. Otherwise, if
* 'r_remove_script_instance' is set to true, the caller must destroy the script instance by removing it from its owner.
*/
void mono_object_disposed_baseref(GCHandleIntPtr p_gchandle_to_free, bool p_is_finalizer, bool &r_delete_owner, bool &r_remove_script_instance);
void connect_event_signals();
void disconnect_event_signals();
void refcount_incremented() override;
bool refcount_decremented() override;
const Variant get_rpc_config() const override;
void notification(int p_notification, bool p_reversed = false) override;
void _call_notification(int p_notification, bool p_reversed = false);
String to_string(bool *r_valid) override;
Ref<Script> get_script() const override;
ScriptLanguage *get_language() override;
CSharpInstance(const Ref<CSharpScript> &p_script);
~CSharpInstance();
};
struct CSharpScriptBinding {
bool inited = false;
StringName type_name;
MonoGCHandleData gchandle;
Object *owner = nullptr;
CSharpScriptBinding() {}
};
class ManagedCallableMiddleman : public Object {
GDCLASS(ManagedCallableMiddleman, Object);
};
class CSharpLanguage : public ScriptLanguage {
friend class CSharpScript;
friend class CSharpInstance;
static CSharpLanguage *singleton;
bool finalizing = false;
bool finalized = false;
GDMono *gdmono = nullptr;
SelfList<CSharpScript>::List script_list;
Mutex script_instances_mutex;
Mutex script_gchandle_release_mutex;
Mutex language_bind_mutex;
RBMap<Object *, CSharpScriptBinding> script_bindings;
#ifdef DEBUG_ENABLED
// List of unsafe object references
HashMap<ObjectID, int> unsafe_object_references;
Mutex unsafe_object_references_lock;
#endif
ManagedCallableMiddleman *managed_callable_middleman = memnew(ManagedCallableMiddleman);
int lang_idx = -1;
// For debug_break and debug_break_parse
int _debug_parse_err_line = -1;
String _debug_parse_err_file;
String _debug_error;
friend class GDMono;
#ifdef TOOLS_ENABLED
EditorPlugin *godotsharp_editor = nullptr;
static void _editor_init_callback();
#endif
static void *_instance_binding_create_callback(void *p_token, void *p_instance);
static void _instance_binding_free_callback(void *p_token, void *p_instance, void *p_binding);
static GDExtensionBool _instance_binding_reference_callback(void *p_token, void *p_binding, GDExtensionBool p_reference);
static GDExtensionInstanceBindingCallbacks _instance_binding_callbacks;
public:
static void *get_instance_binding(Object *p_object);
static void *get_existing_instance_binding(Object *p_object);
static void *get_instance_binding_with_setup(Object *p_object);
static bool has_instance_binding(Object *p_object);
const Mutex &get_language_bind_mutex() {
return language_bind_mutex;
}
const Mutex &get_script_instances_mutex() {
return script_instances_mutex;
}
_FORCE_INLINE_ int get_language_index() {
return lang_idx;
}
void set_language_index(int p_idx);
_FORCE_INLINE_ static CSharpLanguage *get_singleton() {
return singleton;
}
#ifdef TOOLS_ENABLED
_FORCE_INLINE_ EditorPlugin *get_godotsharp_editor() const {
return godotsharp_editor;
}
#endif
static void release_script_gchandle(MonoGCHandleData &p_gchandle);
static void release_script_gchandle_thread_safe(GCHandleIntPtr p_gchandle_to_free, MonoGCHandleData &r_gchandle);
static void release_binding_gchandle_thread_safe(GCHandleIntPtr p_gchandle_to_free, CSharpScriptBinding &r_script_binding);
bool debug_break(const String &p_error, bool p_allow_continue = true);
bool debug_break_parse(const String &p_file, int p_line, const String &p_error);
#ifdef GD_MONO_HOT_RELOAD
bool is_assembly_reloading_needed();
void reload_assemblies(bool p_soft_reload);
#endif
_FORCE_INLINE_ ManagedCallableMiddleman *get_managed_callable_middleman() const {
return managed_callable_middleman;
}
String get_name() const override;
/* LANGUAGE FUNCTIONS */
String get_type() const override;
String get_extension() const override;
void init() override;
void finish() override;
void finalize();
/* EDITOR FUNCTIONS */
void get_reserved_words(List<String> *p_words) const override;
bool is_control_flow_keyword(const String &p_keyword) const override;
void get_comment_delimiters(List<String> *p_delimiters) const override;
void get_doc_comment_delimiters(List<String> *p_delimiters) const override;
void get_string_delimiters(List<String> *p_delimiters) const override;
bool is_using_templates() override;
virtual Ref<Script> make_template(const String &p_template, const String &p_class_name, const String &p_base_class_name) const override;
virtual Vector<ScriptTemplate> get_built_in_templates(const StringName &p_object) override;
/* TODO */ bool validate(const String &p_script, const String &p_path, List<String> *r_functions,
List<ScriptLanguage::ScriptError> *r_errors = nullptr, List<ScriptLanguage::Warning> *r_warnings = nullptr, HashSet<int> *r_safe_lines = nullptr) const override {
return true;
}
String validate_path(const String &p_path) const override;
Script *create_script() const override;
#ifndef DISABLE_DEPRECATED
virtual bool has_named_classes() const override { return false; }
#endif
bool supports_builtin_mode() const override;
/* TODO? */ int find_function(const String &p_function, const String &p_code) const override {
return -1;
}
String make_function(const String &p_class, const String &p_name, const PackedStringArray &p_args) const override;
virtual bool can_make_function() const override { return false; }
virtual String _get_indentation() const;
/* TODO? */ void auto_indent_code(String &p_code, int p_from_line, int p_to_line) const override {}
/* TODO */ void add_global_constant(const StringName &p_variable, const Variant &p_value) override {}
virtual ScriptNameCasing preferred_file_name_casing() const override;
/* SCRIPT GLOBAL CLASS FUNCTIONS */
virtual bool handles_global_class_type(const String &p_type) const override;
virtual String get_global_class_name(const String &p_path, String *r_base_type = nullptr, String *r_icon_path = nullptr) const override;
/* DEBUGGER FUNCTIONS */
String debug_get_error() const override;
int debug_get_stack_level_count() const override;
int debug_get_stack_level_line(int p_level) const override;
String debug_get_stack_level_function(int p_level) const override;
String debug_get_stack_level_source(int p_level) const override;
/* 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 {}
/* 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 {}
/* TODO */ void debug_get_globals(List<String> *p_locals, List<Variant> *p_values, int p_max_subitems, int p_max_depth) override {}
/* TODO */ String debug_parse_stack_level_expression(int p_level, const String &p_expression, int p_max_subitems, int p_max_depth) override {
return "";
}
Vector<StackInfo> debug_get_current_stack_info() override;
/* PROFILING FUNCTIONS */
/* TODO */ void profiling_start() override {}
/* TODO */ void profiling_stop() override {}
/* TODO */ void profiling_set_save_native_calls(bool p_enable) override {}
/* TODO */ int profiling_get_accumulated_data(ProfilingInfo *p_info_arr, int p_info_max) override {
return 0;
}
/* TODO */ int profiling_get_frame_data(ProfilingInfo *p_info_arr, int p_info_max) override {
return 0;
}
void frame() override;
/* TODO? */ void get_public_functions(List<MethodInfo> *p_functions) const override {}
/* TODO? */ void get_public_constants(List<Pair<String, Variant>> *p_constants) const override {}
/* TODO? */ void get_public_annotations(List<MethodInfo> *p_annotations) const override {}
void reload_all_scripts() override;
void reload_scripts(const Array &p_scripts, bool p_soft_reload) override;
void reload_tool_script(const Ref<Script> &p_script, bool p_soft_reload) override;
/* LOADER FUNCTIONS */
void get_recognized_extensions(List<String> *p_extensions) const override;
#ifdef TOOLS_ENABLED
Error open_in_external_editor(const Ref<Script> &p_script, int p_line, int p_col) override;
bool overrides_external_editor() override;
#endif
RBMap<Object *, CSharpScriptBinding>::Element *insert_script_binding(Object *p_object, const CSharpScriptBinding &p_script_binding);
bool setup_csharp_script_binding(CSharpScriptBinding &r_script_binding, Object *p_object);
static void tie_native_managed_to_unmanaged(GCHandleIntPtr p_gchandle_intptr, Object *p_unmanaged, const StringName *p_native_name, bool p_ref_counted);
static void tie_user_managed_to_unmanaged(GCHandleIntPtr p_gchandle_intptr, Object *p_unmanaged, Ref<CSharpScript> *p_script, bool p_ref_counted);
static void tie_managed_to_unmanaged_with_pre_setup(GCHandleIntPtr p_gchandle_intptr, Object *p_unmanaged);
void post_unsafe_reference(Object *p_obj);
void pre_unsafe_unreference(Object *p_obj);
CSharpLanguage();
~CSharpLanguage();
};
class ResourceFormatLoaderCSharpScript : public ResourceFormatLoader {
public:
Ref<Resource> 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;
void get_recognized_extensions(List<String> *p_extensions) const override;
bool handles_type(const String &p_type) const override;
String get_resource_type(const String &p_path) const override;
};
class ResourceFormatSaverCSharpScript : public ResourceFormatSaver {
public:
Error save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags = 0) override;
void get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const override;
bool recognize(const Ref<Resource> &p_resource) const override;
};
#endif // CSHARP_SCRIPT_H
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