virtualx-engine/modules/mono/csharp_script.h
2022-07-07 17:21:51 +02:00

551 lines
21 KiB
C++

/*************************************************************************/
/* csharp_script.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 "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"
#include "mono_gc_handle.h"
#include "mono_gd/gd_mono.h"
#include "mono_gd/gd_mono_header.h"
#include "mono_gd/gd_mono_internals.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_plugin.h"
#endif
class CSharpScript;
class CSharpInstance;
class CSharpLanguage;
#ifdef NO_SAFE_CAST
template <typename TScriptInstance, typename TScriptLanguage>
TScriptInstance *cast_script_instance(ScriptInstance *p_inst) {
if (!p_inst) {
return nullptr;
}
return p_inst->get_language() == TScriptLanguage::get_singleton() ? static_cast<TScriptInstance *>(p_inst) : nullptr;
}
#else
template <typename TScriptInstance, typename TScriptLanguage>
TScriptInstance *cast_script_instance(ScriptInstance *p_inst) {
return dynamic_cast<TScriptInstance *>(p_inst);
}
#endif
#define CAST_CSHARP_INSTANCE(m_inst) (cast_script_instance<CSharpInstance, CSharpLanguage>(m_inst))
struct DotNetScriptLookupInfo {
String class_namespace;
String class_name;
GDMonoClass *script_class = nullptr;
DotNetScriptLookupInfo() {} // Required by HashMap...
DotNetScriptLookupInfo(const String &p_class_namespace, const String &p_class_name, GDMonoClass *p_script_class) :
class_namespace(p_class_namespace), class_name(p_class_name), script_class(p_script_class) {
}
};
class CSharpScript : public Script {
GDCLASS(CSharpScript, Script);
public:
struct SignalParameter {
String name;
Variant::Type type;
bool nil_is_variant = false;
};
struct EventSignal {
GDMonoField *field = nullptr;
GDMonoMethod *invoke_method = nullptr;
Vector<SignalParameter> parameters;
};
private:
friend class CSharpInstance;
friend class CSharpLanguage;
friend struct CSharpScriptDepSort;
bool tool = false;
bool valid = false;
bool reload_invalidated = false;
GDMonoClass *base = nullptr;
GDMonoClass *native = nullptr;
GDMonoClass *script_class = nullptr;
Ref<CSharpScript> base_cache; // TODO what's this for?
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;
List<Pair<StringName, Array>> event_signals;
};
HashSet<ObjectID> pending_reload_instances;
RBMap<ObjectID, StateBackup> pending_reload_state;
StringName tied_class_name_for_reload;
StringName tied_class_namespace_for_reload;
#endif
String source;
StringName name;
SelfList<CSharpScript> script_list = this;
HashMap<StringName, Vector<SignalParameter>> _signals;
HashMap<StringName, EventSignal> event_signals;
bool signals_invalidated = true;
Vector<Multiplayer::RPCConfig> rpc_functions;
#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 _update_member_info_no_exports();
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();
void _update_name();
void load_script_signals(GDMonoClass *p_class, GDMonoClass *p_native_class);
bool _get_signal(GDMonoClass *p_class, GDMonoMethod *p_delegate_invoke, Vector<SignalParameter> &params);
bool _update_exports(PlaceHolderScriptInstance *p_instance_to_update = nullptr);
bool _get_member_export(IMonoClassMember *p_member, bool p_inspect_export, PropertyInfo &r_prop_info, bool &r_exported);
#ifdef TOOLS_ENABLED
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);
#endif
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
friend void GDMonoInternals::tie_managed_to_unmanaged(MonoObject *, Object *);
static Ref<CSharpScript> create_for_managed_type(GDMonoClass *p_class, GDMonoClass *p_native);
static void update_script_class_info(Ref<CSharpScript> p_script);
static void initialize_for_managed_type(Ref<CSharpScript> p_script, GDMonoClass *p_class, GDMonoClass *p_native);
Multiplayer::RPCConfig _member_get_rpc_config(IMonoClassMember *p_member) const;
protected:
static void _bind_methods();
Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
void _resource_path_changed() override;
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:
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;
}
#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 tool; }
bool is_valid() const override { return valid; }
bool inherits_script(const Ref<Script> &p_script) const override;
Ref<Script> get_base_script() 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;
MethodInfo get_method_info(const StringName &p_method) const override;
int get_member_line(const StringName &p_member) const override;
const Vector<Multiplayer::RPCConfig> get_rpc_methods() 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 nullptr is returned, the caller must destroy the script instance by removing it from its owner.
*/
MonoObject *_internal_new_managed();
// Do not use unless you know what you are doing
friend void GDMonoInternals::tie_managed_to_unmanaged(MonoObject *, Object *);
static CSharpInstance *create_for_managed_type(Object *p_owner, CSharpScript *p_script, const MonoGCHandleData &p_gchandle);
void get_properties_state_for_reloading(List<Pair<StringName, Variant>> &r_state);
void get_event_signals_state_for_reloading(List<Pair<StringName, Array>> &r_state);
public:
MonoObject *get_mono_object() const;
_FORCE_INLINE_ bool is_destructing_script_instance() { return destructing_script_instance; }
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;
void get_method_list(List<MethodInfo> *p_list) const override;
bool has_method(const StringName &p_method) const override;
Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) override;
void mono_object_disposed(MonoObject *p_obj);
/*
* 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(MonoObject *p_obj, 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 Vector<Multiplayer::RPCConfig> get_rpc_methods() const override;
void notification(int p_notification) override;
void _call_notification(int p_notification);
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;
GDMonoClass *wrapper_class = nullptr;
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);
struct StringNameCache {
StringName _signal_callback;
StringName _set;
StringName _get;
StringName _get_property_list;
StringName _notification;
StringName _script_source;
StringName dotctor; // .ctor
StringName on_before_serialize; // OnBeforeSerialize
StringName on_after_deserialize; // OnAfterDeserialize
StringName delegate_invoke_method_name;
StringNameCache();
};
int lang_idx = -1;
HashMap<String, DotNetScriptLookupInfo> dotnet_script_lookup_map;
void lookup_script_for_class(GDMonoClass *p_class);
// For debug_break and debug_break_parse
int _debug_parse_err_line = -1;
String _debug_parse_err_file;
String _debug_error;
friend class GDMono;
void _on_scripts_domain_unloaded();
#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 GDNativeBool _instance_binding_reference_callback(void *p_token, void *p_binding, GDNativeBool p_reference);
static GDNativeInstanceBindingCallbacks _instance_binding_callbacks;
public:
static void *get_instance_binding(Object *p_object);
static void *get_existing_instance_binding(Object *p_object);
static void set_instance_binding(Object *p_object, void *p_binding);
static bool has_instance_binding(Object *p_object);
StringNameCache string_names;
const Mutex &get_language_bind_mutex() { return language_bind_mutex; }
_FORCE_INLINE_ int get_language_index() { return lang_idx; }
void set_language_index(int p_idx);
_FORCE_INLINE_ const StringNameCache &get_string_names() { return string_names; }
_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(MonoObject *p_expected_obj, MonoGCHandleData &p_gchandle);
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; }
void lookup_scripts_in_assembly(GDMonoAssembly *p_assembly);
const DotNetScriptLookupInfo *lookup_dotnet_script(const String &p_script_path) const {
return dotnet_script_lookup_map.getptr(p_script_path);
}
String get_name() const override;
/* LANGUAGE FUNCTIONS */
String get_type() const override;
String get_extension() const override;
Error execute_file(const String &p_path) 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(String p_keyword) const override;
void get_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(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;
bool has_named_classes() const override;
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 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 {}
/* 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 */ 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_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
/* THREAD ATTACHING */
void thread_enter() override;
void thread_exit() override;
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);
#ifdef DEBUG_ENABLED
Vector<StackInfo> stack_trace_get_info(MonoObject *p_stack_trace);
#endif
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 String &p_path, const Ref<Resource> &p_resource, 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