562 lines
23 KiB
C++
562 lines
23 KiB
C++
/*************************************************************************/
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/* gdscript.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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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 GDSCRIPT_H
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#define GDSCRIPT_H
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#include "core/debugger/engine_debugger.h"
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#include "core/debugger/script_debugger.h"
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#include "core/io/resource_loader.h"
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#include "core/io/resource_saver.h"
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#include "core/script_language.h"
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#include "gdscript_function.h"
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class GDScriptNativeClass : public Reference {
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GDCLASS(GDScriptNativeClass, Reference);
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StringName name;
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protected:
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bool _get(const StringName &p_name, Variant &r_ret) const;
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static void _bind_methods();
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public:
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_FORCE_INLINE_ const StringName &get_name() const { return name; }
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Variant _new();
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Object *instance();
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GDScriptNativeClass(const StringName &p_name);
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};
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class GDScript : public Script {
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GDCLASS(GDScript, Script);
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bool tool;
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bool valid;
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struct MemberInfo {
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int index;
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StringName setter;
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StringName getter;
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MultiplayerAPI::RPCMode rpc_mode;
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GDScriptDataType data_type;
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};
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friend class GDScriptInstance;
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friend class GDScriptFunction;
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friend class GDScriptCompiler;
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friend class GDScriptFunctions;
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friend class GDScriptLanguage;
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Ref<GDScriptNativeClass> native;
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Ref<GDScript> base;
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GDScript *_base; //fast pointer access
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GDScript *_owner; //for subclasses
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Set<StringName> members; //members are just indices to the instanced script.
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Map<StringName, Variant> constants;
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Map<StringName, GDScriptFunction *> member_functions;
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Map<StringName, MemberInfo> member_indices; //members are just indices to the instanced script.
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Map<StringName, Ref<GDScript> > subclasses;
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Map<StringName, Vector<StringName> > _signals;
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Vector<ScriptNetData> rpc_functions;
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Vector<ScriptNetData> rpc_variables;
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#ifdef TOOLS_ENABLED
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Map<StringName, int> member_lines;
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Map<StringName, Variant> member_default_values;
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List<PropertyInfo> members_cache;
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Map<StringName, Variant> member_default_values_cache;
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Ref<GDScript> base_cache;
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Set<ObjectID> inheriters_cache;
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bool source_changed_cache;
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bool placeholder_fallback_enabled;
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void _update_exports_values(Map<StringName, Variant> &values, List<PropertyInfo> &propnames);
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#endif
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Map<StringName, PropertyInfo> member_info;
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GDScriptFunction *initializer; //direct pointer to _init , faster to locate
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int subclass_count;
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Set<Object *> instances;
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//exported members
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String source;
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String path;
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String name;
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String fully_qualified_name;
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SelfList<GDScript> script_list;
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GDScriptInstance *_create_instance(const Variant **p_args, int p_argcount, Object *p_owner, bool p_isref, Callable::CallError &r_error);
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void _set_subclass_path(Ref<GDScript> &p_sc, const String &p_path);
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#ifdef TOOLS_ENABLED
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Set<PlaceHolderScriptInstance *> placeholders;
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//void _update_placeholder(PlaceHolderScriptInstance *p_placeholder);
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virtual void _placeholder_erased(PlaceHolderScriptInstance *p_placeholder);
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#endif
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#ifdef DEBUG_ENABLED
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Map<ObjectID, List<Pair<StringName, Variant> > > pending_reload_state;
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#endif
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bool _update_exports();
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void _save_orphaned_subclasses();
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void _init_rpc_methods_properties();
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protected:
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bool _get(const StringName &p_name, Variant &r_ret) const;
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bool _set(const StringName &p_name, const Variant &p_value);
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void _get_property_list(List<PropertyInfo> *p_properties) const;
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Variant call(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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//void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
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static void _bind_methods();
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public:
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virtual bool is_valid() const { return valid; }
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const Map<StringName, Ref<GDScript> > &get_subclasses() const { return subclasses; }
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const Map<StringName, Variant> &get_constants() const { return constants; }
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const Set<StringName> &get_members() const { return members; }
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const GDScriptDataType &get_member_type(const StringName &p_member) const {
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CRASH_COND(!member_indices.has(p_member));
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return member_indices[p_member].data_type;
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}
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const Map<StringName, GDScriptFunction *> &get_member_functions() const { return member_functions; }
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const Ref<GDScriptNativeClass> &get_native() const { return native; }
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const String &get_script_class_name() const { return name; }
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virtual bool has_script_signal(const StringName &p_signal) const;
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virtual void get_script_signal_list(List<MethodInfo> *r_signals) const;
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bool is_tool() const { return tool; }
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Ref<GDScript> get_base() const;
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const Map<StringName, MemberInfo> &debug_get_member_indices() const { return member_indices; }
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const Map<StringName, GDScriptFunction *> &debug_get_member_functions() const; //this is debug only
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StringName debug_get_member_by_index(int p_idx) const;
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Variant _new(const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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virtual bool can_instance() const;
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virtual Ref<Script> get_base_script() const;
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virtual StringName get_instance_base_type() const; // this may not work in all scripts, will return empty if so
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virtual ScriptInstance *instance_create(Object *p_this);
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virtual PlaceHolderScriptInstance *placeholder_instance_create(Object *p_this);
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virtual bool instance_has(const Object *p_this) const;
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virtual bool has_source_code() const;
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virtual String get_source_code() const;
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virtual void set_source_code(const String &p_code);
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virtual void update_exports();
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virtual Error reload(bool p_keep_state = false);
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void set_script_path(const String &p_path) { path = p_path; } //because subclasses need a path too...
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Error load_source_code(const String &p_path);
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Error load_byte_code(const String &p_path);
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Vector<uint8_t> get_as_byte_code() const;
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bool get_property_default_value(const StringName &p_property, Variant &r_value) const;
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virtual void get_script_method_list(List<MethodInfo> *p_list) const;
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virtual bool has_method(const StringName &p_method) const;
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virtual MethodInfo get_method_info(const StringName &p_method) const;
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virtual void get_script_property_list(List<PropertyInfo> *p_list) const;
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virtual ScriptLanguage *get_language() const;
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virtual int get_member_line(const StringName &p_member) const {
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#ifdef TOOLS_ENABLED
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if (member_lines.has(p_member))
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return member_lines[p_member];
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else
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#endif
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return -1;
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}
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virtual void get_constants(Map<StringName, Variant> *p_constants);
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virtual void get_members(Set<StringName> *p_members);
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virtual Vector<ScriptNetData> get_rpc_methods() const;
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virtual uint16_t get_rpc_method_id(const StringName &p_method) const;
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virtual StringName get_rpc_method(const uint16_t p_rpc_method_id) const;
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virtual MultiplayerAPI::RPCMode get_rpc_mode_by_id(const uint16_t p_rpc_method_id) const;
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virtual MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const;
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virtual Vector<ScriptNetData> get_rset_properties() const;
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virtual uint16_t get_rset_property_id(const StringName &p_variable) const;
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virtual StringName get_rset_property(const uint16_t p_variable_id) const;
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virtual MultiplayerAPI::RPCMode get_rset_mode_by_id(const uint16_t p_variable_id) const;
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virtual MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const;
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#ifdef TOOLS_ENABLED
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virtual bool is_placeholder_fallback_enabled() const { return placeholder_fallback_enabled; }
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#endif
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GDScript();
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~GDScript();
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};
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class GDScriptInstance : public ScriptInstance {
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friend class GDScript;
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friend class GDScriptFunction;
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friend class GDScriptFunctions;
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friend class GDScriptCompiler;
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ObjectID owner_id;
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Object *owner;
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Ref<GDScript> script;
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#ifdef DEBUG_ENABLED
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Map<StringName, int> member_indices_cache; //used only for hot script reloading
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#endif
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Vector<Variant> members;
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bool base_ref;
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void _ml_call_reversed(GDScript *sptr, const StringName &p_method, const Variant **p_args, int p_argcount);
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public:
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virtual Object *get_owner() { return owner; }
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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;
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virtual Variant call(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error);
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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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Variant debug_get_member_by_index(int p_idx) const { return members[p_idx]; }
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virtual void notification(int p_notification);
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String to_string(bool *r_valid);
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virtual Ref<Script> get_script() const;
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virtual ScriptLanguage *get_language();
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void set_path(const String &p_path);
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void reload_members();
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virtual Vector<ScriptNetData> get_rpc_methods() const;
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virtual uint16_t get_rpc_method_id(const StringName &p_method) const;
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virtual StringName get_rpc_method(const uint16_t p_rpc_method_id) const;
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virtual MultiplayerAPI::RPCMode get_rpc_mode_by_id(const uint16_t p_rpc_method_id) const;
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virtual MultiplayerAPI::RPCMode get_rpc_mode(const StringName &p_method) const;
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virtual Vector<ScriptNetData> get_rset_properties() const;
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virtual uint16_t get_rset_property_id(const StringName &p_variable) const;
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virtual StringName get_rset_property(const uint16_t p_variable_id) const;
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virtual MultiplayerAPI::RPCMode get_rset_mode_by_id(const uint16_t p_variable_id) const;
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virtual MultiplayerAPI::RPCMode get_rset_mode(const StringName &p_variable) const;
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GDScriptInstance();
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~GDScriptInstance();
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};
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#ifdef DEBUG_ENABLED
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struct GDScriptWarning {
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enum Code {
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UNASSIGNED_VARIABLE, // Variable used but never assigned
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UNASSIGNED_VARIABLE_OP_ASSIGN, // Variable never assigned but used in an assignment operation (+=, *=, etc)
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UNUSED_VARIABLE, // Local variable is declared but never used
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SHADOWED_VARIABLE, // Variable name shadowed by other variable
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UNUSED_CLASS_VARIABLE, // Class variable is declared but never used in the file
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UNUSED_ARGUMENT, // Function argument is never used
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UNREACHABLE_CODE, // Code after a return statement
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STANDALONE_EXPRESSION, // Expression not assigned to a variable
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VOID_ASSIGNMENT, // Function returns void but it's assigned to a variable
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NARROWING_CONVERSION, // Float value into an integer slot, precision is lost
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FUNCTION_MAY_YIELD, // Typed assign of function call that yields (it may return a function state)
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VARIABLE_CONFLICTS_FUNCTION, // Variable has the same name of a function
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FUNCTION_CONFLICTS_VARIABLE, // Function has the same name of a variable
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FUNCTION_CONFLICTS_CONSTANT, // Function has the same name of a constant
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INCOMPATIBLE_TERNARY, // Possible values of a ternary if are not mutually compatible
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UNUSED_SIGNAL, // Signal is defined but never emitted
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RETURN_VALUE_DISCARDED, // Function call returns something but the value isn't used
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PROPERTY_USED_AS_FUNCTION, // Function not found, but there's a property with the same name
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CONSTANT_USED_AS_FUNCTION, // Function not found, but there's a constant with the same name
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FUNCTION_USED_AS_PROPERTY, // Property not found, but there's a function with the same name
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INTEGER_DIVISION, // Integer divide by integer, decimal part is discarded
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UNSAFE_PROPERTY_ACCESS, // Property not found in the detected type (but can be in subtypes)
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UNSAFE_METHOD_ACCESS, // Function not found in the detected type (but can be in subtypes)
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UNSAFE_CAST, // Cast used in an unknown type
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UNSAFE_CALL_ARGUMENT, // Function call argument is of a supertype of the require argument
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DEPRECATED_KEYWORD, // The keyword is deprecated and should be replaced
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STANDALONE_TERNARY, // Return value of ternary expression is discarded
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WARNING_MAX,
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} code;
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Vector<String> symbols;
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int line;
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String get_name() const;
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String get_message() const;
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static String get_name_from_code(Code p_code);
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static Code get_code_from_name(const String &p_name);
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GDScriptWarning() :
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code(WARNING_MAX),
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line(-1) {}
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};
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#endif // DEBUG_ENABLED
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class GDScriptLanguage : public ScriptLanguage {
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static GDScriptLanguage *singleton;
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Variant *_global_array;
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Vector<Variant> global_array;
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Map<StringName, int> globals;
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Map<StringName, Variant> named_globals;
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struct CallLevel {
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Variant *stack;
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GDScriptFunction *function;
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GDScriptInstance *instance;
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int *ip;
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int *line;
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};
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int _debug_parse_err_line;
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String _debug_parse_err_file;
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String _debug_error;
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int _debug_call_stack_pos;
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int _debug_max_call_stack;
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CallLevel *_call_stack;
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void _add_global(const StringName &p_name, const Variant &p_value);
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friend class GDScriptInstance;
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Mutex lock;
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friend class GDScript;
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SelfList<GDScript>::List script_list;
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friend class GDScriptFunction;
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SelfList<GDScriptFunction>::List function_list;
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bool profiling;
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uint64_t script_frame_time;
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Map<String, ObjectID> orphan_subclasses;
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public:
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int calls;
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bool debug_break(const String &p_error, bool p_allow_continue = true);
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bool debug_break_parse(const String &p_file, int p_line, const String &p_error);
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_FORCE_INLINE_ void enter_function(GDScriptInstance *p_instance, GDScriptFunction *p_function, Variant *p_stack, int *p_ip, int *p_line) {
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if (Thread::get_main_id() != Thread::get_caller_id())
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return; //no support for other threads than main for now
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if (EngineDebugger::get_script_debugger()->get_lines_left() > 0 && EngineDebugger::get_script_debugger()->get_depth() >= 0)
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EngineDebugger::get_script_debugger()->set_depth(EngineDebugger::get_script_debugger()->get_depth() + 1);
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if (_debug_call_stack_pos >= _debug_max_call_stack) {
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//stack overflow
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_debug_error = "Stack Overflow (Stack Size: " + itos(_debug_max_call_stack) + ")";
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EngineDebugger::get_script_debugger()->debug(this);
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return;
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}
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_call_stack[_debug_call_stack_pos].stack = p_stack;
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_call_stack[_debug_call_stack_pos].instance = p_instance;
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_call_stack[_debug_call_stack_pos].function = p_function;
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_call_stack[_debug_call_stack_pos].ip = p_ip;
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_call_stack[_debug_call_stack_pos].line = p_line;
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_debug_call_stack_pos++;
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}
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_FORCE_INLINE_ void exit_function() {
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if (Thread::get_main_id() != Thread::get_caller_id())
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return; //no support for other threads than main for now
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if (EngineDebugger::get_script_debugger()->get_lines_left() > 0 && EngineDebugger::get_script_debugger()->get_depth() >= 0)
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EngineDebugger::get_script_debugger()->set_depth(EngineDebugger::get_script_debugger()->get_depth() - 1);
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if (_debug_call_stack_pos == 0) {
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_debug_error = "Stack Underflow (Engine Bug)";
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EngineDebugger::get_script_debugger()->debug(this);
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return;
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}
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_debug_call_stack_pos--;
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}
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virtual Vector<StackInfo> debug_get_current_stack_info() {
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if (Thread::get_main_id() != Thread::get_caller_id())
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return Vector<StackInfo>();
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Vector<StackInfo> csi;
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csi.resize(_debug_call_stack_pos);
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for (int i = 0; i < _debug_call_stack_pos; i++) {
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csi.write[_debug_call_stack_pos - i - 1].line = _call_stack[i].line ? *_call_stack[i].line : 0;
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if (_call_stack[i].function) {
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csi.write[_debug_call_stack_pos - i - 1].func = _call_stack[i].function->get_name();
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csi.write[_debug_call_stack_pos - i - 1].file = _call_stack[i].function->get_script()->get_path();
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}
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}
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return csi;
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}
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struct {
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StringName _init;
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StringName _notification;
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StringName _set;
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StringName _get;
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StringName _get_property_list;
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StringName _script_source;
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} strings;
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_FORCE_INLINE_ int get_global_array_size() const { return global_array.size(); }
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_FORCE_INLINE_ Variant *get_global_array() { return _global_array; }
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_FORCE_INLINE_ const Map<StringName, int> &get_global_map() const { return globals; }
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_FORCE_INLINE_ const Map<StringName, Variant> &get_named_globals_map() const { return named_globals; }
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_FORCE_INLINE_ static GDScriptLanguage *get_singleton() { return singleton; }
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virtual String get_name() const;
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/* LANGUAGE FUNCTIONS */
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virtual void init();
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virtual String get_type() const;
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virtual String get_extension() const;
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virtual Error execute_file(const String &p_path);
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virtual void finish();
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/* EDITOR FUNCTIONS */
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virtual void get_reserved_words(List<String> *p_words) const;
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virtual void get_comment_delimiters(List<String> *p_delimiters) const;
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virtual void get_string_delimiters(List<String> *p_delimiters) const;
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virtual String _get_processed_template(const String &p_template, const String &p_base_class_name) const;
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virtual Ref<Script> get_template(const String &p_class_name, const String &p_base_class_name) const;
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virtual bool is_using_templates();
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virtual void make_template(const String &p_class_name, const String &p_base_class_name, Ref<Script> &p_script);
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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, List<ScriptLanguage::Warning> *r_warnings = NULL, Set<int> *r_safe_lines = NULL) const;
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virtual Script *create_script() const;
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virtual bool has_named_classes() const;
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virtual bool supports_builtin_mode() const;
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virtual bool can_inherit_from_file() { return true; }
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virtual int find_function(const String &p_function, const String &p_code) const;
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virtual String make_function(const String &p_class, const String &p_name, const PackedStringArray &p_args) const;
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|
virtual Error complete_code(const String &p_code, const String &p_path, Object *p_owner, List<ScriptCodeCompletionOption> *r_options, bool &r_forced, String &r_call_hint);
|
|
#ifdef TOOLS_ENABLED
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|
virtual Error lookup_code(const String &p_code, const String &p_symbol, const String &p_path, Object *p_owner, LookupResult &r_result);
|
|
#endif
|
|
virtual String _get_indentation() const;
|
|
virtual void auto_indent_code(String &p_code, int p_from_line, int p_to_line) const;
|
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virtual void add_global_constant(const StringName &p_variable, const Variant &p_value);
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virtual void add_named_global_constant(const StringName &p_name, const Variant &p_value);
|
|
virtual void remove_named_global_constant(const StringName &p_name);
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|
|
|
/* DEBUGGER FUNCTIONS */
|
|
|
|
virtual String debug_get_error() const;
|
|
virtual int debug_get_stack_level_count() const;
|
|
virtual int debug_get_stack_level_line(int p_level) const;
|
|
virtual String debug_get_stack_level_function(int p_level) const;
|
|
virtual String debug_get_stack_level_source(int p_level) const;
|
|
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);
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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);
|
|
virtual ScriptInstance *debug_get_stack_level_instance(int p_level);
|
|
virtual void debug_get_globals(List<String> *p_globals, List<Variant> *p_values, int p_max_subitems = -1, int p_max_depth = -1);
|
|
virtual String debug_parse_stack_level_expression(int p_level, const String &p_expression, int p_max_subitems = -1, int p_max_depth = -1);
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|
|
|
virtual void reload_all_scripts();
|
|
virtual void reload_tool_script(const Ref<Script> &p_script, bool p_soft_reload);
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|
|
|
virtual void frame();
|
|
|
|
virtual void get_public_functions(List<MethodInfo> *p_functions) const;
|
|
virtual void get_public_constants(List<Pair<String, Variant> > *p_constants) const;
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|
|
|
virtual void profiling_start();
|
|
virtual void profiling_stop();
|
|
|
|
virtual int profiling_get_accumulated_data(ProfilingInfo *p_info_arr, int p_info_max);
|
|
virtual int profiling_get_frame_data(ProfilingInfo *p_info_arr, int p_info_max);
|
|
|
|
/* LOADER FUNCTIONS */
|
|
|
|
virtual void get_recognized_extensions(List<String> *p_extensions) const;
|
|
|
|
/* GLOBAL CLASSES */
|
|
|
|
virtual bool handles_global_class_type(const String &p_type) const;
|
|
virtual String get_global_class_name(const String &p_path, String *r_base_type = NULL, String *r_icon_path = NULL) const;
|
|
|
|
void add_orphan_subclass(const String &p_qualified_name, const ObjectID &p_subclass);
|
|
Ref<GDScript> get_orphan_subclass(const String &p_qualified_name);
|
|
|
|
GDScriptLanguage();
|
|
~GDScriptLanguage();
|
|
};
|
|
|
|
class ResourceFormatLoaderGDScript : public ResourceFormatLoader {
|
|
public:
|
|
virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = NULL, bool p_use_sub_threads = false, float *r_progress = nullptr);
|
|
virtual void get_recognized_extensions(List<String> *p_extensions) const;
|
|
virtual bool handles_type(const String &p_type) const;
|
|
virtual String get_resource_type(const String &p_path) const;
|
|
virtual void get_dependencies(const String &p_path, List<String> *p_dependencies, bool p_add_types = false);
|
|
};
|
|
|
|
class ResourceFormatSaverGDScript : public ResourceFormatSaver {
|
|
public:
|
|
virtual Error save(const String &p_path, const RES &p_resource, uint32_t p_flags = 0);
|
|
virtual void get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const;
|
|
virtual bool recognize(const RES &p_resource) const;
|
|
};
|
|
|
|
#endif // GDSCRIPT_H
|