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authorAntonio Juarez <antonio.maria.juarez@live.com>2014-03-03 22:07:58 +0000
committerAntonio Juarez <antonio.maria.juarez@live.com>2014-03-03 22:07:58 +0000
commit296ae46ed8f8f6e5f986f978febad302e3df231a (patch)
tree1629164454a239308f33c9e12afb22e7f3cd8eeb /src/serialization/json_archive.h
parentchanged name (diff)
downloadmonero-296ae46ed8f8f6e5f986f978febad302e3df231a.tar.xz
moved all stuff to github
Diffstat (limited to 'src/serialization/json_archive.h')
-rw-r--r--src/serialization/json_archive.h145
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
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+++ 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_;
+};