diff options
author | Antonio Juarez <antonio.maria.juarez@live.com> | 2014-03-03 22:07:58 +0000 |
---|---|---|
committer | Antonio Juarez <antonio.maria.juarez@live.com> | 2014-03-03 22:07:58 +0000 |
commit | 296ae46ed8f8f6e5f986f978febad302e3df231a (patch) | |
tree | 1629164454a239308f33c9e12afb22e7f3cd8eeb /src/serialization/json_archive.h | |
parent | changed name (diff) | |
download | monero-296ae46ed8f8f6e5f986f978febad302e3df231a.tar.xz |
moved all stuff to github
Diffstat (limited to 'src/serialization/json_archive.h')
-rw-r--r-- | src/serialization/json_archive.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/serialization/json_archive.h b/src/serialization/json_archive.h new file mode 100644 index 000000000..49ad74d41 --- /dev/null +++ b/src/serialization/json_archive.h @@ -0,0 +1,145 @@ +// Copyright (c) 2012-2013 The Cryptonote developers +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +/* json_archive.h + * + * JSON archive */ + +#pragma once + +#include "serialization.h" +#include <cassert> +#include <iostream> +#include <iomanip> + +template <class Stream, bool IsSaving> +struct json_archive_base +{ + typedef Stream stream_type; + typedef json_archive_base<Stream, IsSaving> base_type; + typedef boost::mpl::bool_<IsSaving> is_saving; + + typedef const char *variant_tag_type; + + json_archive_base(stream_type &s, bool indent = false) : stream_(s), indent_(indent), object_begin(false), depth_(0) { } + + void tag(const char *tag) { + if (!object_begin) + stream_ << ", "; + make_indent(); + stream_ << '"' << tag << "\": "; + object_begin = false; + } + + void begin_object() + { + stream_ << "{"; + ++depth_; + object_begin = true; + } + + void end_object() + { + --depth_; + make_indent(); + stream_ << "}"; + } + + void begin_variant() { begin_object(); } + void end_variant() { end_object(); } + Stream &stream() { return stream_; } + +protected: + void make_indent() + { + if (indent_) + { + stream_ << '\n' << std::string(2 * depth_, ' '); + } + } + +protected: + stream_type &stream_; + bool indent_; + bool object_begin; + size_t depth_; +}; + +template <bool W> +struct json_archive; + +template <> +struct json_archive<true> : public json_archive_base<std::ostream, true> +{ + json_archive(stream_type &s, bool indent = false) : base_type(s, indent) { } + + template<typename T> + static auto promote_to_printable_integer_type(T v) -> decltype(+v) + { + // Unary operator '+' performs integral promotion on type T [expr.unary.op]. + // If T is signed or unsigned char, it's promoted to int and printed as number. + return +v; + } + + template <class T> + void serialize_int(T v) + { + stream_ << std::dec << promote_to_printable_integer_type(v); + } + + void serialize_blob(void *buf, size_t len, const char *delimiter="\"") { + begin_string(delimiter); + for (size_t i = 0; i < len; i++) { + unsigned char c = ((unsigned char *)buf)[i]; + stream_ << std::hex << std::setw(2) << std::setfill('0') << (int)c; + } + end_string(delimiter); + } + + template <class T> + void serialize_varint(T &v) + { + stream_ << std::dec << promote_to_printable_integer_type(v); + } + + void begin_string(const char *delimiter="\"") + { + stream_ << delimiter; + } + + void end_string(const char *delimiter="\"") + { + stream_ << delimiter; + } + + void begin_array(size_t s=0) + { + inner_array_size_ = s; + ++depth_; + stream_ << "[ "; + } + + void delimit_array() + { + stream_ << ", "; + } + + void end_array() + { + --depth_; + if (0 < inner_array_size_) + { + make_indent(); + } + stream_ << "]"; + } + + void write_variant_tag(const char *t) + { + tag(t); + } + +private: + size_t inner_array_size_; +}; |