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author | Petr Mrázek <peterix@gmail.com> | 2015-09-23 01:21:19 +0200 |
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committer | Petr Mrázek <peterix@gmail.com> | 2015-09-23 01:21:19 +0200 |
commit | 5d5bee49928e36d552c8df62bb820af82bd24032 (patch) | |
tree | b369d566368f1622ae2fd3a2b2c0021a4aa7b5b1 /depends/libnbtplusplus/include/tag.h | |
parent | e60a652b78af8f985862da726898291f807ae058 (diff) | |
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GH-1238 re-integrate nbt library
Diffstat (limited to 'depends/libnbtplusplus/include/tag.h')
m--------- | depends/libnbtplusplus | 0 | ||||
-rw-r--r-- | depends/libnbtplusplus/include/tag.h | 159 |
2 files changed, 0 insertions, 159 deletions
diff --git a/depends/libnbtplusplus b/depends/libnbtplusplus new file mode 160000 +Subproject 9d17b0a9b93e684a5ac6cac8f70d9a7909a877c diff --git a/depends/libnbtplusplus/include/tag.h b/depends/libnbtplusplus/include/tag.h deleted file mode 100644 index 9a9f5858..00000000 --- a/depends/libnbtplusplus/include/tag.h +++ /dev/null @@ -1,159 +0,0 @@ -/* - * libnbt++ - A library for the Minecraft Named Binary Tag format. - * Copyright (C) 2013, 2015 ljfa-ag - * - * This file is part of libnbt++. - * - * libnbt++ is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * libnbt++ is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public License - * along with libnbt++. If not, see <http://www.gnu.org/licenses/>. - */ -#ifndef TAG_H_INCLUDED -#define TAG_H_INCLUDED - -#include <cstdint> -#include <iosfwd> -#include <memory> - -#include "nbt++_export.h" - -namespace nbt -{ - -///Tag type values used in the binary format -enum class tag_type : int8_t -{ - End = 0, - Byte = 1, - Short = 2, - Int = 3, - Long = 4, - Float = 5, - Double = 6, - Byte_Array = 7, - String = 8, - List = 9, - Compound = 10, - Int_Array = 11, - Null = -1 ///< Used to denote empty @ref value s -}; - -/** - * @brief Returns whether the given number falls within the range of valid tag types - * @param allow_end whether to consider tag_type::End (0) valid - */ -NBT___EXPORT bool is_valid_type(int type, bool allow_end = false); - -//Forward declarations -class nbt_visitor; -class const_nbt_visitor; -namespace io -{ - class stream_reader; - class stream_writer; -} - -///Base class for all NBT tag classes -class NBT___EXPORT tag -{ -public: - //Virtual destructor - virtual ~tag() noexcept {} - - ///Returns the type of the tag - virtual tag_type get_type() const noexcept = 0; - - //Polymorphic clone methods - virtual std::unique_ptr<tag> clone() const& = 0; - virtual std::unique_ptr<tag> move_clone() && = 0; - std::unique_ptr<tag> clone() &&; - - /** - * @brief Returns a reference to the tag as an instance of T - * @throw std::bad_cast if the tag is not of type T - */ - template<class T> - T& as(); - template<class T> - const T& as() const; - - /** - * @brief Move-assigns the given tag if the class is the same - * @throw std::bad_cast if @c rhs is not the same type as @c *this - */ - virtual tag& assign(tag&& rhs) = 0; - - /** - * @brief Calls the appropriate overload of @c visit() on the visitor with - * @c *this as argument - * - * Implementing the Visitor pattern - */ - virtual void accept(nbt_visitor& visitor) = 0; - virtual void accept(const_nbt_visitor& visitor) const = 0; - - /** - * @brief Reads the tag's payload from the stream - * @throw io::stream_reader::input_error on failure - */ - virtual void read_payload(io::stream_reader& reader) = 0; - - /** - * @brief Writes the tag's payload into the stream - */ - virtual void write_payload(io::stream_writer& writer) const = 0; - - /** - * @brief Default-constructs a new tag of the given type - * @throw std::invalid_argument if the type is not valid (e.g. End or Null) - */ - static std::unique_ptr<tag> create(tag_type type); - - friend bool operator==(const tag& lhs, const tag& rhs); - friend bool operator!=(const tag& lhs, const tag& rhs); - -private: - /** - * @brief Checks for equality to a tag of the same type - * @param rhs an instance of the same class as @c *this - */ - virtual bool equals(const tag& rhs) const = 0; -}; - -///Output operator for tag types -NBT___EXPORT std::ostream& operator<<(std::ostream& os, tag_type tt); - -/** - * @brief Output operator for tags - * - * Uses @ref text::json_formatter - * @relates tag - */ -NBT___EXPORT std::ostream& operator<<(std::ostream& os, const tag& t); - -template<class T> -T& tag::as() -{ - static_assert(std::is_base_of<tag, T>::value, "T must be a subclass of tag"); - return dynamic_cast<T&>(*this); -} - -template<class T> -const T& tag::as() const -{ - static_assert(std::is_base_of<tag, T>::value, "T must be a subclass of tag"); - return dynamic_cast<const T&>(*this); -} - -} - -#endif // TAG_H_INCLUDED |