godot/core/variant/type_info.h

/**************************************************************************/
/*  type_info.h                                                           */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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/* distribute, sublicense, and/or sell copies of the Software, and to     */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
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/**************************************************************************/

#ifndef TYPE_INFO_H
#define TYPE_INFO_H

#include "core/typedefs.h"

#include <type_traits>

namespace GodotTypeInfo {
enum Metadata { … };
}

// If the compiler fails because it's trying to instantiate the primary 'GetTypeInfo' template
// instead of one of the specializations, it's most likely because the type 'T' is not supported.
// If 'T' is a class that inherits 'Object', make sure it can see the actual class declaration
// instead of a forward declaration. You can always forward declare 'T' in a header file, and then
// include the actual declaration of 'T' in the source file where 'GetTypeInfo<T>' is instantiated.
template <typename T, typename = void>
struct GetTypeInfo;

#define MAKE_TYPE_INFO(m_type, m_var_type) …

#define MAKE_TYPE_INFO_WITH_META(m_type, m_var_type, m_metadata) …

MAKE_TYPE_INFO(bool, Variant::BOOL)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(…)
MAKE_TYPE_INFO_WITH_META(char16_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_CHAR16)
MAKE_TYPE_INFO_WITH_META(char32_t, Variant::INT, GodotTypeInfo::METADATA_INT_IS_CHAR32)
MAKE_TYPE_INFO_WITH_META(float, Variant::FLOAT, GodotTypeInfo::METADATA_REAL_IS_FLOAT)
MAKE_TYPE_INFO_WITH_META(double, Variant::FLOAT, GodotTypeInfo::METADATA_REAL_IS_DOUBLE)

MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)
MAKE_TYPE_INFO(…)

MAKE_TYPE_INFO(…)

//objectID
template <>
struct GetTypeInfo<ObjectID> { … };

//for variant
template <>
struct GetTypeInfo<Variant> { … };

template <>
struct GetTypeInfo<const Variant &> { … };

#define MAKE_TEMPLATE_TYPE_INFO(m_template, m_type, m_var_type) …

MAKE_TEMPLATE_TYPE_INFO(…)
MAKE_TEMPLATE_TYPE_INFO(…)
MAKE_TEMPLATE_TYPE_INFO(…)
MAKE_TEMPLATE_TYPE_INFO(…)
MAKE_TEMPLATE_TYPE_INFO(…)

GetTypeInfo<T *, std::enable_if_t<std::is_base_of_v<Object, T>>>;

namespace godot {
namespace details {
inline String enum_qualified_name_to_class_info_name(const String &p_qualified_name) { … }
} // namespace details
} // namespace godot

#define TEMPL_MAKE_ENUM_TYPE_INFO(m_enum, m_impl) …

#define MAKE_ENUM_TYPE_INFO(m_enum) …

template <typename T>
inline StringName __constant_get_enum_name(T param, const String &p_constant) { … }

template <typename T>
class BitField { … };

#define TEMPL_MAKE_BITFIELD_TYPE_INFO(m_enum, m_impl) …

#define MAKE_BITFIELD_TYPE_INFO(m_enum) …

template <typename T>
inline StringName __constant_get_bitfield_name(T param, const String &p_constant) { … }
#define CLASS_INFO(m_type) …

template <typename T>
struct ZeroInitializer { … };

template <>
struct ZeroInitializer<bool> { … };

ZeroInitializer<T *>;

#define ZERO_INITIALIZER_NUMBER(m_type) …

ZERO_INITIALIZER_NUMBER(uint8_t)
ZERO_INITIALIZER_NUMBER(int8_t)
ZERO_INITIALIZER_NUMBER(uint16_t)
ZERO_INITIALIZER_NUMBER(int16_t)
ZERO_INITIALIZER_NUMBER(uint32_t)
ZERO_INITIALIZER_NUMBER(int32_t)
ZERO_INITIALIZER_NUMBER(uint64_t)
ZERO_INITIALIZER_NUMBER(int64_t)
ZERO_INITIALIZER_NUMBER(char16_t)
ZERO_INITIALIZER_NUMBER(char32_t)
ZERO_INITIALIZER_NUMBER(float)
ZERO_INITIALIZER_NUMBER(double)

#endif // TYPE_INFO_H