libjson/json-value.cc at master · yuansl/libjson · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
#include <sstream>		// for std::stringstream

#include "json-value.h"

namespace json {
    static const char *__json_type_desc[] = {
	[JSON_EMPTY] = "JSON_EMPTY",
	[JSON_NULL] = "JSON_NULL",
	[JSON_INT] = "JSON_INT",
	[JSON_NUMBER] = "JSON_NUMBER",
	[JSON_CHAR] = "JSON_CHAR",
	[JSON_STRING] = "JSON_STRING",
	[JSON_ARRAY] = "JSON_ARRAY",
	[JSON_OBJECT] = "JSON_OBJECT",
	[JSON_BOOL] = "JSON_BOOL"
    };

    json_value &json_value::operator=(json_value &&rvalue)
    {
	*this = rvalue;
	return *this;
    }

    json_value &json_value::operator=(const json_value &rvalue) {

	value_type = rvalue.value_type;
	switch (rvalue.value_type) {
	case JSON_NULL:
	    value._M_json_null = rvalue.value._M_json_null;
	    break;
	case JSON_NUMBER:
	    value._M_json_number = rvalue.value._M_json_number;
	    break;
	case JSON_INT:
	    value._M_json_int = rvalue.value._M_json_int;
	    break;
	case JSON_STRING:
	    new (&value._M_json_string) std::string; // it needed to active another member
	    value._M_json_string = rvalue.value._M_json_string;
	    break;
	case JSON_OBJECT:
	    new (&value._M_json_object) json_object;
	    value._M_json_object = rvalue.value._M_json_object;
	    break;
	case JSON_BOOL:
	    value._M_json_bool = rvalue.value._M_json_bool;
	    break;
	case JSON_ARRAY:
	    new (&value._M_json_array) json_array;
	    value._M_json_array = rvalue.value._M_json_array;
	    break;
	default:
	    break;
	}
	return *this;
    }

    const std::string json_value::typeof(void) const
    {
	if (JSON_EMPTY <= value_type && value_type <= JSON_BOOL)
	    return std::string(__json_type_desc[value_type]);
	else
	    return std::string("unknown type");
    }

    std::string json_value::tostring(void) const
    {
	std::string s;
	std::stringstream sio;
	switch (value_type) {
	case JSON_CHAR:
	    sio << value._M_json_char;
	    break;
	case JSON_INT:
	    sio << value._M_json_int;
	    break;
	case JSON_NUMBER:
	    sio << value._M_json_number;
	    break;
	case JSON_STRING:
	    sio << value._M_json_string;
	    break;
	case JSON_NULL:
	    sio << "null";
	    break;
	case JSON_BOOL:
	    if (value._M_json_bool)
		sio << "true";
	    else
		sio << "false";
	    break;
	case JSON_OBJECT:
	    sio << value._M_json_object;
	    break;
	case JSON_ARRAY:
	    sio << value._M_json_array;
	    break;
	default:
	    break;
	}
	sio >> s;
	return s;
    }

    std::ostream &operator<<(std::ostream &out, const json_value &other)
    {
	switch (other.value_type) {
	case JSON_CHAR:
	    out << other.value._M_json_char;
	    break;
	case JSON_INT:
	    out << other.value._M_json_int;
	    break;
	case JSON_NUMBER:
	    out << other.value._M_json_number;
	    break;
	case JSON_STRING:
	    out << other.value._M_json_string;
	    break;
	case JSON_NULL:
	    out << "null";
	    break;
	case JSON_BOOL:
	    if (other.value._M_json_bool)
		out << "true";
	    else
		out << "false";
	    break;
	case JSON_OBJECT:
	    out << other.value._M_json_object;
	    break;
	case JSON_ARRAY:
	    out << other.value._M_json_array;
	    break;
	default:
	    break;
	}
	return out;
    }
}