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367 lines
14 KiB
C++
367 lines
14 KiB
C++
/*************************************************************************/
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/* script_language.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef SCRIPT_LANGUAGE_H
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#define SCRIPT_LANGUAGE_H
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#include "resource.h"
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#include "map.h"
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#include "pair.h"
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/**
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@author Juan Linietsky <reduzio@gmail.com>
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*/
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class ScriptLanguage;
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class ScriptServer {
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enum {
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MAX_LANGUAGES=4
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};
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static ScriptLanguage *_languages[MAX_LANGUAGES];
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static int _language_count;
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static bool scripting_enabled;
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static bool reload_scripts_on_save;
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public:
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static void set_scripting_enabled(bool p_enabled);
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static bool is_scripting_enabled();
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static int get_language_count();
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static ScriptLanguage *get_language(int p_idx);
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static void register_language(ScriptLanguage *p_language);
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static void unregister_language(ScriptLanguage *p_language);
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static void set_reload_scripts_on_save(bool p_enable);
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static bool is_reload_scripts_on_save_enabled();
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static void thread_enter();
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static void thread_exit();
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static void init_languages();
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};
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class ScriptInstance;
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class PlaceHolderScriptInstance;
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class Script : public Resource {
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OBJ_TYPE( Script, Resource );
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OBJ_SAVE_TYPE( Script );
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protected:
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void _notification( int p_what);
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static void _bind_methods();
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friend class PlaceHolderScriptInstance;
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virtual void _placeholder_erased(PlaceHolderScriptInstance *p_placeholder) {}
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public:
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virtual bool can_instance() const=0;
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virtual StringName get_instance_base_type() const=0; // this may not work in all scripts, will return empty if so
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virtual ScriptInstance* instance_create(Object *p_this)=0;
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virtual bool instance_has(const Object *p_this) const=0;
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virtual bool has_source_code() const=0;
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virtual String get_source_code() const=0;
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virtual void set_source_code(const String& p_code)=0;
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virtual Error reload(bool p_keep_state=false)=0;
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virtual bool is_tool() const=0;
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virtual String get_node_type() const=0;
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virtual ScriptLanguage *get_language() const=0;
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virtual bool has_script_signal(const StringName& p_signal) const=0;
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virtual void get_script_signal_list(List<MethodInfo> *r_signals) const=0;
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virtual bool get_property_default_value(const StringName& p_property,Variant& r_value) const=0;
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virtual void update_exports() {} //editor tool
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Script() {}
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};
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class ScriptInstance {
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public:
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virtual bool set(const StringName& p_name, const Variant& p_value)=0;
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virtual bool get(const StringName& p_name, Variant &r_ret) const=0;
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virtual void get_property_list(List<PropertyInfo> *p_properties) const=0;
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virtual Variant::Type get_property_type(const StringName& p_name,bool *r_is_valid=NULL) const=0;
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virtual void get_property_state(List<Pair<StringName,Variant> > &state);
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virtual void get_method_list(List<MethodInfo> *p_list) const=0;
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virtual bool has_method(const StringName& p_method) const=0;
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virtual Variant call(const StringName& p_method,VARIANT_ARG_LIST);
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virtual Variant call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error)=0;
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virtual void call_multilevel(const StringName& p_method,VARIANT_ARG_LIST);
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virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
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virtual void call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount);
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virtual void notification(int p_notification)=0;
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//this is used by script languages that keep a reference counter of their own
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//you can make make Ref<> not die when it reaches zero, so deleting the reference
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//depends entirely from the script
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virtual void refcount_incremented() {}
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virtual bool refcount_decremented() { return true; } //return true if it can die
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virtual Ref<Script> get_script() const=0;
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virtual bool is_placeholder() const { return false; }
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virtual ScriptLanguage *get_language()=0;
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virtual ~ScriptInstance();
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};
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class ScriptCodeCompletionCache {
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static ScriptCodeCompletionCache *singleton;
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public:
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virtual RES get_cached_resource(const String& p_path)=0;
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static ScriptCodeCompletionCache* get_sigleton() { return singleton; }
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ScriptCodeCompletionCache();
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};
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class ScriptLanguage {
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public:
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virtual String get_name() const=0;
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/* LANGUAGE FUNCTIONS */
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virtual void init()=0;
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virtual String get_type() const=0;
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virtual String get_extension() const=0;
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virtual Error execute_file(const String& p_path) =0;
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virtual void finish()=0;
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/* EDITOR FUNCTIONS */
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virtual void get_reserved_words(List<String> *p_words) const=0;
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virtual void get_comment_delimiters(List<String> *p_delimiters) const=0;
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virtual void get_string_delimiters(List<String> *p_delimiters) const=0;
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virtual String get_template(const String& p_class_name, const String& p_base_class_name) const=0;
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virtual bool validate(const String& p_script, int &r_line_error,int &r_col_error,String& r_test_error, const String& p_path="",List<String> *r_functions=NULL) const=0;
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virtual Script *create_script() const=0;
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virtual bool has_named_classes() const=0;
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virtual int find_function(const String& p_function,const String& p_code) const=0;
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virtual String make_function(const String& p_class,const String& p_name,const StringArray& p_args) const=0;
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virtual Error complete_code(const String& p_code, const String& p_base_path, Object*p_owner,List<String>* r_options,String& r_call_hint) { return ERR_UNAVAILABLE; }
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virtual void auto_indent_code(String& p_code,int p_from_line,int p_to_line) const=0;
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virtual void add_global_constant(const StringName& p_variable,const Variant& p_value)=0;
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/* MULTITHREAD FUNCTIONS */
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//some VMs need to be notified of thread creation/exiting to allocate a stack
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virtual void thread_enter() {}
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virtual void thread_exit() {}
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/* DEBUGGER FUNCTIONS */
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virtual String debug_get_error() const=0;
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virtual int debug_get_stack_level_count() const=0;
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virtual int debug_get_stack_level_line(int p_level) const=0;
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virtual String debug_get_stack_level_function(int p_level) const=0;
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virtual String debug_get_stack_level_source(int p_level) const=0;
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virtual void debug_get_stack_level_locals(int p_level,List<String> *p_locals, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1)=0;
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virtual void debug_get_stack_level_members(int p_level,List<String> *p_members, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1)=0;
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virtual void debug_get_globals(List<String> *p_locals, List<Variant> *p_values, int p_max_subitems=-1,int p_max_depth=-1)=0;
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virtual String debug_parse_stack_level_expression(int p_level,const String& p_expression,int p_max_subitems=-1,int p_max_depth=-1)=0;
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struct StackInfo {
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Ref<Script> script;
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int line;
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};
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virtual Vector<StackInfo> debug_get_current_stack_info() { return Vector<StackInfo>(); }
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virtual void reload_all_scripts()=0;
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virtual void reload_tool_script(const Ref<Script>& p_script,bool p_soft_reload)=0;
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/* LOADER FUNCTIONS */
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virtual void get_recognized_extensions(List<String> *p_extensions) const=0;
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virtual void get_public_functions(List<MethodInfo> *p_functions) const=0;
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virtual void get_public_constants(List<Pair<String,Variant> > *p_constants) const=0;
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struct ProfilingInfo {
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StringName signature;
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uint64_t call_count;
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uint64_t total_time;
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uint64_t self_time;
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};
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virtual void profiling_start()=0;
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virtual void profiling_stop()=0;
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virtual int profiling_get_accumulated_data(ProfilingInfo *p_info_arr,int p_info_max)=0;
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virtual int profiling_get_frame_data(ProfilingInfo *p_info_arr,int p_info_max)=0;
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virtual void frame();
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virtual ~ScriptLanguage() {};
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};
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extern uint8_t script_encryption_key[32];
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class PlaceHolderScriptInstance : public ScriptInstance {
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Object *owner;
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List<PropertyInfo> properties;
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Map<StringName,Variant> values;
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ScriptLanguage *language;
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Ref<Script> script;
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public:
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virtual bool set(const StringName& p_name, const Variant& p_value);
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virtual bool get(const StringName& p_name, Variant &r_ret) const;
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virtual void get_property_list(List<PropertyInfo> *p_properties) const;
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virtual Variant::Type get_property_type(const StringName& p_name,bool *r_is_valid=NULL) const;
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virtual void get_method_list(List<MethodInfo> *p_list) const {}
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virtual bool has_method(const StringName& p_method) const { return false; }
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virtual Variant call(const StringName& p_method,VARIANT_ARG_LIST) { return Variant();}
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virtual Variant call(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error) { r_error.error=Variant::CallError::CALL_ERROR_INVALID_METHOD; return Variant(); }
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//virtual void call_multilevel(const StringName& p_method,VARIANT_ARG_LIST) { return Variant(); }
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//virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount,Variant::CallError &r_error) { return Variant(); }
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virtual void notification(int p_notification) {}
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virtual Ref<Script> get_script() const { return script; }
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virtual ScriptLanguage *get_language() { return language; }
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Object *get_owner() { return owner; }
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void update(const List<PropertyInfo> &p_properties,const Map<StringName,Variant>& p_values); //likely changed in editor
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virtual bool is_placeholder() const { return true; }
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PlaceHolderScriptInstance(ScriptLanguage *p_language, Ref<Script> p_script,Object *p_owner);
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~PlaceHolderScriptInstance();
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};
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class ScriptDebugger {
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int lines_left;
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int depth;
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static ScriptDebugger * singleton;
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Map<int,Set<StringName> > breakpoints;
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ScriptLanguage *break_lang;
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public:
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typedef void (*RequestSceneTreeMessageFunc)(void *);
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struct LiveEditFuncs {
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void *udata;
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void (*node_path_func)(void *,const NodePath &p_path,int p_id);
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void (*res_path_func)(void *,const String &p_path,int p_id);
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void (*node_set_func)(void *,int p_id,const StringName& p_prop,const Variant& p_value);
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void (*node_set_res_func)(void *,int p_id,const StringName& p_prop,const String& p_value);
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void (*node_call_func)(void *,int p_id,const StringName& p_method,VARIANT_ARG_DECLARE);
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void (*res_set_func)(void *,int p_id,const StringName& p_prop,const Variant& p_value);
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void (*res_set_res_func)(void *,int p_id,const StringName& p_prop,const String& p_value);
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void (*res_call_func)(void *,int p_id,const StringName& p_method,VARIANT_ARG_DECLARE);
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void (*root_func)(void*, const NodePath& p_scene_path,const String& p_scene_from);
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void (*tree_create_node_func)(void*,const NodePath& p_parent,const String& p_type,const String& p_name);
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void (*tree_instance_node_func)(void*,const NodePath& p_parent,const String& p_path,const String& p_name);
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void (*tree_remove_node_func)(void*,const NodePath& p_at);
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void (*tree_remove_and_keep_node_func)(void*,const NodePath& p_at,ObjectID p_keep_id);
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void (*tree_restore_node_func)(void*,ObjectID p_id,const NodePath& p_at,int p_at_pos);
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void (*tree_duplicate_node_func)(void*,const NodePath& p_at,const String& p_new_name);
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void (*tree_reparent_node_func)(void*,const NodePath& p_at,const NodePath& p_new_place,const String& p_new_name,int p_at_pos);
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};
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_FORCE_INLINE_ static ScriptDebugger * get_singleton() { return singleton; }
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void set_lines_left(int p_left);
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int get_lines_left() const;
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void set_depth(int p_depth);
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int get_depth() const;
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String breakpoint_find_source(const String& p_source) const;
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void insert_breakpoint(int p_line, const StringName& p_source);
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void remove_breakpoint(int p_line, const StringName& p_source);
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bool is_breakpoint(int p_line,const StringName& p_source) const;
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bool is_breakpoint_line(int p_line) const;
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void clear_breakpoints();
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virtual void debug(ScriptLanguage *p_script,bool p_can_continue=true)=0;
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virtual void idle_poll();
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virtual void line_poll();
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void set_break_language(ScriptLanguage *p_lang);
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ScriptLanguage* get_break_language() const;
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virtual void send_message(const String& p_message, const Array& p_args)=0;
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virtual bool is_remote() const { return false; }
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virtual void request_quit() {}
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virtual void set_request_scene_tree_message_func(RequestSceneTreeMessageFunc p_func, void *p_udata) {}
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virtual void set_live_edit_funcs(LiveEditFuncs *p_funcs) {}
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virtual bool is_profiling() const=0;
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virtual void add_profiling_frame_data(const StringName& p_name,const Array& p_data)=0;
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virtual void profiling_start()=0;
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virtual void profiling_end()=0;
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virtual void profiling_set_frame_times(float p_frame_time,float p_idle_time,float p_fixed_time,float p_fixed_frame_time)=0;
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ScriptDebugger();
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virtual ~ScriptDebugger() {singleton=NULL;}
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};
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#endif
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