533 lines
18 KiB
C++
533 lines
18 KiB
C++
/*************************************************************************/
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/* class_db.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) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 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 CLASS_DB_H
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#define CLASS_DB_H
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#include "method_bind.h"
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#include "object.h"
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#include "print_string.h"
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/**
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@author Juan Linietsky <reduzio@gmail.com>
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*/
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struct ParamHint {
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String name;
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PropertyHint hint;
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String hint_text;
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Variant default_val;
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ParamHint(const String &p_name = "", PropertyHint p_hint = PROPERTY_HINT_NONE, const String &p_hint_text = "", Variant p_default_val = Variant()) {
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name = p_name;
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hint = p_hint;
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hint_text = p_hint_text;
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default_val = p_default_val;
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}
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};
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struct ParamDef {
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bool used;
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Variant val;
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_FORCE_INLINE_ ParamDef() { used = false; }
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ParamDef(const Variant &p_variant);
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};
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//#define DEFVAL( m_defval ) ParamDef(m_defval)
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#define DEFVAL(m_defval) (m_defval)
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//#define SIMPLE_METHODDEF
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#ifdef DEBUG_METHODS_ENABLED
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struct MethodDefinition {
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StringName name;
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Vector<StringName> args;
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MethodDefinition() {}
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MethodDefinition(const char *p_name) { name = p_name; }
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MethodDefinition(const StringName &p_name) { name = p_name; }
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};
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MethodDefinition D_METHOD(const char *p_name);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8, const char *p_arg9);
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MethodDefinition D_METHOD(const char *p_name, const char *p_arg1, const char *p_arg2, const char *p_arg3, const char *p_arg4, const char *p_arg5, const char *p_arg6, const char *p_arg7, const char *p_arg8, const char *p_arg9, const char *p_arg10);
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#else
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//#define NO_VARIADIC_MACROS
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#ifdef NO_VARIADIC_MACROS
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static _FORCE_INLINE_ const char *D_METHOD(const char *m_name, ...) {
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return m_name;
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}
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#else
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// When DEBUG_METHODS_ENABLED is set this will let the engine know
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// the argument names for easier debugging.
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#define D_METHOD(m_c, ...) m_c
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#endif
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#endif
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class ClassDB {
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public:
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enum APIType {
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API_CORE,
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API_EDITOR,
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API_NONE
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};
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public:
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struct PropertySetGet {
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int index;
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StringName setter;
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StringName getter;
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MethodBind *_setptr;
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MethodBind *_getptr;
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Variant::Type type;
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};
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struct ClassInfo {
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APIType api;
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ClassInfo *inherits_ptr;
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HashMap<StringName, MethodBind *, StringNameHasher> method_map;
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HashMap<StringName, int, StringNameHasher> constant_map;
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HashMap<StringName, MethodInfo, StringNameHasher> signal_map;
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List<PropertyInfo> property_list;
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#ifdef DEBUG_METHODS_ENABLED
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List<StringName> constant_order;
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List<StringName> method_order;
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Set<StringName> methods_in_properties;
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List<MethodInfo> virtual_methods;
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StringName category;
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#endif
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HashMap<StringName, PropertySetGet, StringNameHasher> property_setget;
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StringName inherits;
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StringName name;
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bool disabled;
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Object *(*creation_func)();
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ClassInfo();
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~ClassInfo();
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};
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template <class T>
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static Object *creator() {
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return memnew(T);
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}
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static RWLock *lock;
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static HashMap<StringName, ClassInfo, StringNameHasher> classes;
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static HashMap<StringName, StringName, StringNameHasher> resource_base_extensions;
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static HashMap<StringName, StringName, StringNameHasher> compat_classes;
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#ifdef DEBUG_METHODS_ENABLED
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static MethodBind *bind_methodfi(uint32_t p_flags, MethodBind *p_bind, const MethodDefinition &method_name, const Variant **p_defs, int p_defcount);
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#else
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static MethodBind *bind_methodfi(uint32_t p_flags, MethodBind *p_bind, const char *method_name, const Variant **p_defs, int p_defcount);
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#endif
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static APIType current_api;
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static void _add_class2(const StringName &p_class, const StringName &p_inherits);
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public:
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// DO NOT USE THIS!!!!!! NEEDS TO BE PUBLIC BUT DO NOT USE NO MATTER WHAT!!!
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template <class T>
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static void _add_class() {
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_add_class2(T::get_class_static(), T::get_parent_class_static());
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#if 0
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GLOBAL_LOCK_FUNCTION;
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StringName name = T::get_class_static();
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ERR_FAIL_COND(types.has(name));
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types[name]=TypeInfo();
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TypeInfo &ti=types[name];
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ti.name=name;
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ti.inherits=T::get_parent_class_static();
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if (ti.inherits) {
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ERR_FAIL_COND( !types.has(ti.inherits) ); //it MUST be registered.
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ti.inherits_ptr = &types[ti.inherits];
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} else {
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ti.inherits_ptr=NULL;
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}
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#endif
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}
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template <class T>
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static void register_class() {
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GLOBAL_LOCK_FUNCTION;
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T::initialize_class();
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ClassInfo *t = classes.getptr(T::get_class_static());
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ERR_FAIL_COND(!t);
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t->creation_func = &creator<T>;
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T::register_custom_data_to_otdb();
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}
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template <class T>
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static void register_virtual_class() {
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GLOBAL_LOCK_FUNCTION;
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T::initialize_class();
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//nothing
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}
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template <class T>
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static Object *_create_ptr_func() {
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return T::create();
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}
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template <class T>
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static void register_custom_instance_class() {
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GLOBAL_LOCK_FUNCTION;
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T::initialize_class();
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ClassInfo *t = classes.getptr(T::get_class_static());
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ERR_FAIL_COND(!t);
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t->creation_func = &_create_ptr_func<T>;
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T::register_custom_data_to_otdb();
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}
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static void get_class_list(List<StringName> *p_classes);
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static void get_inheriters_from_class(const StringName &p_class, List<StringName> *p_classes);
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static StringName get_parent_class_nocheck(const StringName &p_class);
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static StringName get_parent_class(const StringName &p_class);
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static bool class_exists(const StringName &p_class);
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static bool is_parent_class(const StringName &p_class, const StringName &p_inherits);
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static bool can_instance(const StringName &p_class);
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static Object *instance(const StringName &p_class);
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static APIType get_api_type(const StringName &p_class);
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static uint64_t get_api_hash(APIType p_api);
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#if 0
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template<class N, class M>
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static MethodBind* bind_method(N p_method_name, M p_method,
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//default arguments
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ParamDef d1=ParamDef(),
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ParamDef d2=ParamDef(),
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ParamDef d3=ParamDef(),
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ParamDef d4=ParamDef(),
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ParamDef d5=ParamDef()
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) {
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return bind_methodf(METHOD_FLAGS_DEFAULT,p_method_name, p_method, d1,d2,d3,d4,d5);
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}
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template<class N, class M>
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static MethodBind* bind_methodf(uint32_t p_flags, N p_method_name, M p_method,
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//default arguments
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const ParamDef &d1=ParamDef(),
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const ParamDef &d2=ParamDef(),
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const ParamDef &d3=ParamDef(),
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const ParamDef &d4=ParamDef(),
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const ParamDef &d5=ParamDef()
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) {
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GLOBAL_LOCK_FUNCTION;
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MethodDefinition method_name=p_method_name;
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MethodBind *bind = create_method_bind(p_method);
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bind->set_name(method_name.name);
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ERR_FAIL_COND_V(!bind,NULL);
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String instance_type=bind->get_instance_type();
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TypeInfo *type=types.getptr(instance_type);
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if (!type) {
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memdelete(bind);
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ERR_FAIL_COND_V(!type,NULL);
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}
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if (type->method_map.has(method_name.name)) {
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memdelete(bind);
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// overloading not supported
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ERR_EXPLAIN("Method already bound: "+instance_type+"::"+method_name.name);
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ERR_FAIL_V(NULL);
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}
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bind->set_argument_names(method_name.args);
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type->method_map[method_name.name]=bind;
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Vector<Variant> defvals;
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#define PARSE_DEFVAL(m_defval) \
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if (d##m_defval.used) \
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defvals.insert(0, d##m_defval.val); \
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else \
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goto set_defvals;
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PARSE_DEFVAL(1);
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PARSE_DEFVAL(2);
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PARSE_DEFVAL(3);
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PARSE_DEFVAL(4);
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PARSE_DEFVAL(5);
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set_defvals:
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bind->set_default_arguments(defvals);
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bind->set_hint_flags(p_flags);
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return bind;
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#undef PARSE_DEFVAL
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}
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#else
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#if 0
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template<class N, class M>
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static MethodBind* bind_method(N p_method_name, M p_method,
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//default arguments
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const ParamDef &d1=ParamDef(),
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const ParamDef &d2=ParamDef(),
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const ParamDef &d3=ParamDef(),
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const ParamDef &d4=ParamDef(),
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const ParamDef &d5=ParamDef()
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) {
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MethodDefinition method_name=p_method_name;
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MethodBind *bind = create_method_bind(p_method);
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return bind_methodfi(METHOD_FLAGS_DEFAULT,bind,method_name,d1,d2,d3,d4,d5); //use static function, much smaller binary usage
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}
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#endif
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method) {
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MethodBind *bind = create_method_bind(p_method);
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, NULL, 0); //use static function, much smaller binary usage
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[1] = { &p_def1 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 1);
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[2] = { &p_def1, &p_def2 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 2);
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[3] = { &p_def1, &p_def2, &p_def3 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 3);
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[4] = { &p_def1, &p_def2, &p_def3, &p_def4 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 4);
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4, const Variant &p_def5) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[5] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 5);
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}
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template <class N, class M>
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static MethodBind *bind_method(N p_method_name, M p_method, const Variant &p_def1, const Variant &p_def2, const Variant &p_def3, const Variant &p_def4, const Variant &p_def5, const Variant &p_def6) {
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MethodBind *bind = create_method_bind(p_method);
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const Variant *ptr[6] = { &p_def1, &p_def2, &p_def3, &p_def4, &p_def5, &p_def6 };
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return bind_methodfi(METHOD_FLAGS_DEFAULT, bind, p_method_name, ptr, 6);
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}
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#if 0
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template<class N, class M>
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static MethodBind* bind_methodf(uint32_t p_flags, N p_method_name, M p_method,
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const ParamDef& d1=ParamDef(),
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const ParamDef& d2=ParamDef(),
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const ParamDef& d3=ParamDef(),
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const ParamDef& d4=ParamDef(),
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const ParamDef& d5=ParamDef()
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) {
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MethodDefinition method_name=p_method_name;
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MethodBind *bind = create_method_bind(p_method);
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return bind_methodfi(p_flags,bind,method_name,d1,d2,d3,d4,d5); //use static function, much smaller binary usage
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}
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#endif
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#endif
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template <class M>
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static MethodBind *bind_vararg_method(uint32_t p_flags, StringName p_name, M p_method, const MethodInfo &p_info = MethodInfo(), const Vector<Variant> &p_default_args = Vector<Variant>()) {
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GLOBAL_LOCK_FUNCTION;
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MethodBind *bind = create_vararg_method_bind(p_method, p_info);
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ERR_FAIL_COND_V(!bind, NULL);
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String rettype;
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if (p_name.operator String().find(":") != -1) {
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rettype = p_name.operator String().get_slice(":", 1);
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p_name = p_name.operator String().get_slice(":", 0);
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}
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bind->set_name(p_name);
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bind->set_default_arguments(p_default_args);
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String instance_type = bind->get_instance_class();
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ClassInfo *type = classes.getptr(instance_type);
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if (!type) {
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memdelete(bind);
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ERR_FAIL_COND_V(!type, NULL);
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}
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if (type->method_map.has(p_name)) {
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memdelete(bind);
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// overloading not supported
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ERR_EXPLAIN("Method already bound: " + instance_type + "::" + p_name);
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ERR_FAIL_V(NULL);
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}
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type->method_map[p_name] = bind;
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#ifdef DEBUG_METHODS_ENABLED
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if (!rettype.empty())
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bind->set_return_type(rettype);
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type->method_order.push_back(p_name);
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#endif
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return bind;
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}
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static void add_signal(StringName p_class, const MethodInfo &p_signal);
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static bool has_signal(StringName p_class, StringName p_signal);
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static bool get_signal(StringName p_class, StringName p_signal, MethodInfo *r_signal);
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static void get_signal_list(StringName p_class, List<MethodInfo> *p_signals, bool p_no_inheritance = false);
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static void add_property_group(StringName p_class, const String &p_name, const String &p_prefix = "");
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static void add_property(StringName p_class, const PropertyInfo &p_pinfo, const StringName &p_setter, const StringName &p_getter, int p_index = -1);
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static void get_property_list(StringName p_class, List<PropertyInfo> *p_list, bool p_no_inheritance = false, const Object *p_validator = NULL);
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static bool set_property(Object *p_object, const StringName &p_property, const Variant &p_value, bool *r_valid = NULL);
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static bool get_property(Object *p_object, const StringName &p_property, Variant &r_value);
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static bool has_property(const StringName &p_class, const StringName &p_property, bool p_no_inheritance = false);
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static int get_property_index(const StringName &p_class, const StringName &p_property, bool *r_is_valid = NULL);
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static Variant::Type get_property_type(const StringName &p_class, const StringName &p_property, bool *r_is_valid = NULL);
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static StringName get_property_setter(StringName p_class, const StringName p_property);
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static StringName get_property_getter(StringName p_class, const StringName p_property);
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static bool has_method(StringName p_class, StringName p_method, bool p_no_inheritance = false);
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static void set_method_flags(StringName p_class, StringName p_method, int p_flags);
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static void get_method_list(StringName p_class, List<MethodInfo> *p_methods, bool p_no_inheritance = false, bool p_exclude_from_properties = false);
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static MethodBind *get_method(StringName p_class, StringName p_name);
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static void add_virtual_method(const StringName &p_class, const MethodInfo &p_method, bool p_virtual = true);
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static void get_virtual_methods(const StringName &p_class, List<MethodInfo> *p_methods, bool p_no_inheritance = false);
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static void bind_integer_constant(const StringName &p_class, const StringName &p_name, int p_constant);
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static void get_integer_constant_list(const StringName &p_class, List<String> *p_constants, bool p_no_inheritance = false);
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static int get_integer_constant(const StringName &p_class, const StringName &p_name, bool *p_success = NULL);
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static StringName get_category(const StringName &p_node);
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static bool get_setter_and_type_for_property(const StringName &p_class, const StringName &p_prop, StringName &r_class, StringName &r_setter);
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static void set_class_enabled(StringName p_class, bool p_enable);
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static bool is_class_enabled(StringName p_class);
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static void add_resource_base_extension(const StringName &p_extension, const StringName &p_class);
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static void get_resource_base_extensions(List<String> *p_extensions);
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static void get_extensions_for_type(const StringName &p_class, List<String> *p_extensions);
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static void add_compatibility_class(const StringName &p_class, const StringName &p_fallback);
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static void init();
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static void set_current_api(APIType p_api);
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static void cleanup();
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};
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#define BIND_CONSTANT(m_constant) \
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ClassDB::bind_integer_constant(get_class_static(), #m_constant, m_constant);
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#ifdef TOOLS_ENABLED
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#define BIND_VMETHOD(m_method) \
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ClassDB::add_virtual_method(get_class_static(), m_method);
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#else
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#define BIND_VMETHOD(m_method)
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#endif
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#endif // CLASS_DB_H
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