javascript.h

#ifndef JAVASCRIPT_H
#define JAVASCRIPT_H

#include "core/io/resource_loader.h"
#include "core/io/resource_saver.h"
#include "core/object/script_language.h"
#include "scene/resources/text_file.h"

#include "javascript_binder.h"

#define EXT_NAME "JavaScript"
#define EXT_JSCLASS "mjs"
#define EXT_TSCLASS "ts"
#define EXT_JSMODULE "js"
#define EXT_JSON "json"
#define EXT_GENERATE "//generatedPath="

class JavaScript : public Script {
	GDCLASS(JavaScript, Script);

private:
	friend class JavaScriptInstance;
	friend class QuickJSBinder;
	friend class ResourceFormatLoaderJavaScript;

	HashSet<Object *> instances;
	StringName class_name;
	String code;
	String script_path;
	Vector<uint8_t> bytecode;
	const BasicJavaScriptClassInfo *javascript_class;

#ifdef TOOLS_ENABLED
	HashSet<PlaceHolderScriptInstance *> placeholders;
	virtual void _placeholder_erased(PlaceHolderScriptInstance *p_placeholder) override;
#endif

	Dictionary rpc_config;

protected:
	void _notification(int p_what) {}
	static void _bind_methods();

public:
	virtual bool can_instantiate() const override;

	virtual Ref<Script> get_base_script() const override { return nullptr; }
	virtual bool inherits_script(const Ref<Script> &p_script) const override { return false; }

	StringName get_global_name() const override;
	virtual StringName get_instance_base_type() const override;
	virtual ScriptInstance *instance_create(Object *p_this) override;
	virtual PlaceHolderScriptInstance *placeholder_instance_create(Object *p_this) override;
	virtual bool instance_has(const Object *p_this) const override;

	virtual bool has_source_code() const override { return true; }
	virtual String get_source_code() const override { return code; }
	virtual void set_source_code(const String &p_code) override { code = p_code; }
	virtual Error reload(bool p_keep_state = true) override;

#ifdef TOOLS_ENABLED
	_FORCE_INLINE_ virtual Vector<DocData::ClassDoc> get_documentation() const override { return Vector<DocData::ClassDoc>(); }
#endif

	virtual bool has_method(const StringName &p_method) const override;
	virtual MethodInfo get_method_info(const StringName &p_method) const override;

	virtual bool is_tool() const override;
	virtual bool is_valid() const override;

	virtual ScriptLanguage *get_language() const override;

	virtual bool has_script_signal(const StringName &p_signal) const override;
	virtual void get_script_signal_list(List<MethodInfo> *r_signals) const override;

	virtual bool get_property_default_value(const StringName &p_property, Variant &r_value) const override;

	virtual void update_exports() override;
	virtual void get_script_method_list(List<MethodInfo> *p_list) const override;
	virtual void get_script_property_list(List<PropertyInfo> *p_list) const override;

	_FORCE_INLINE_ String get_script_path() const { return script_path; }
	_FORCE_INLINE_ void set_script_path(const String &p_path) { script_path = p_path; }

	virtual const Variant get_rpc_config() const override { return rpc_config; }

	JavaScript();
	virtual ~JavaScript();
};

class ResourceFormatLoaderJavaScript : public ResourceFormatLoader {
	GDCLASS(ResourceFormatLoaderJavaScript, ResourceFormatLoader)
public:
	virtual 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;
	virtual void get_recognized_extensions(List<String> *p_extensions) const override;
	virtual bool handles_type(const String &p_type) const override;
	virtual void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const override;
	virtual String get_resource_type(const String &p_path) const override;

	virtual bool recognize_path(const String &p_path, const String &p_for_type = String()) const override;
};

class ResourceFormatSaverJavaScript : public ResourceFormatSaver {
	GDCLASS(ResourceFormatSaverJavaScript, ResourceFormatSaver)
public:
	virtual Error save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags = 0) override;
	virtual void get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const override;
	virtual bool recognize(const Ref<Resource> &p_resource) const override;
};

class JavaScriptModule : public TextFile {
	GDCLASS(JavaScriptModule, Resource)
protected:
	static void _bind_methods();
	String script_path;
	Vector<uint8_t> bytecode;

public:
	_FORCE_INLINE_ void set_source_code(String p_source_code) { TextFile::set_text(p_source_code); }
	_FORCE_INLINE_ String get_source_code() const { return TextFile::get_text(); }
	_FORCE_INLINE_ void set_bytecode(Vector<uint8_t> p_bytecode) { bytecode = p_bytecode; }
	_FORCE_INLINE_ Vector<uint8_t> get_bytecode() const { return bytecode; }
	_FORCE_INLINE_ void set_script_path(String p_script_path) { script_path = p_script_path; }
	_FORCE_INLINE_ String get_script_path() const { return script_path; }

	JavaScriptModule();
};

class ResourceFormatLoaderJavaScriptModule : public ResourceFormatLoader {
	GDCLASS(ResourceFormatLoaderJavaScriptModule, ResourceFormatLoader)
public:
	virtual 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, ResourceFormatLoader::CacheMode p_cache_mode = CACHE_MODE_REUSE) override;
	virtual void get_recognized_extensions(List<String> *p_extensions) const override;
	virtual void get_recognized_extensions_for_type(const String &p_type, List<String> *p_extensions) const override;
	virtual bool handles_type(const String &p_type) const override;
	virtual String get_resource_type(const String &p_path) const override;

	static Ref<Resource> load_static(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
};

class ResourceFormatSaverJavaScriptModule : public ResourceFormatSaver {
	GDCLASS(ResourceFormatSaverJavaScriptModule, ResourceFormatSaver)
public:
	virtual Error save(const Ref<Resource> &p_resource, const String &p_path, uint32_t p_flags = 0) override;
	virtual void get_recognized_extensions(const Ref<Resource> &p_resource, List<String> *p_extensions) const override;
	virtual bool recognize(const Ref<Resource> &p_resource) const override;
};

#endif // JAVASCRIPT_H