GCC Code Coverage Report
Directory: ../ Exec Total Coverage
File: /home/iojs/build/workspace/node-test-commit-linux-coverage-daily/nodes/benchmark/out/../src/tracing/traced_value.cc Lines: 116 121 95.9 %
Date: 2020-02-19 22:14:06 Branches: 38 56 67.9 %

Line Branch Exec Source
1
// Copyright 2016 the V8 project authors. All rights reserved.
2
// Use of this source code is governed by a BSD-style license that can be
3
// found in the LICENSE file.
4
5
#include "tracing/traced_value.h"
6
7
#if defined(NODE_HAVE_I18N_SUPPORT)
8
#include <unicode/utf8.h>
9
#include <unicode/utypes.h>
10
#endif
11
12
#include <cmath>
13
#include <cstdio>
14
#include <sstream>
15
#include <string>
16
17
#if defined(_STLP_VENDOR_CSTD)
18
// STLPort doesn't import fpclassify into the std namespace.
19
#define FPCLASSIFY_NAMESPACE
20
#else
21
#define FPCLASSIFY_NAMESPACE std
22
#endif
23
24
namespace node {
25
namespace tracing {
26
27
namespace {
28
29
1066
std::string EscapeString(const char* value) {
30
1066
  std::string result;
31
1066
  result += '"';
32
  char number_buffer[10];
33
#if defined(NODE_HAVE_I18N_SUPPORT)
34
1066
  int32_t len = strlen(value);
35
1066
  int32_t p = 0;
36
1066
  int32_t i = 0;
37
15982
  for (; i < len; p = i) {
38
    UChar32 c;
39






7458
    U8_NEXT_OR_FFFD(value, i, len, c);
40


7458
    switch (c) {
41
2
      case '\b': result += "\\b"; break;
42
2
      case '\f': result += "\\f"; break;
43
2
      case '\n': result += "\\n"; break;
44
2
      case '\r': result += "\\r"; break;
45
2
      case '\t': result += "\\t"; break;
46
2
      case '\\': result += "\\\\"; break;
47
10
      case '"': result += "\\\""; break;
48
      default:
49

7436
        if (c < 32 || c > 126) {
50
4
          snprintf(
51
              number_buffer, arraysize(number_buffer), "\\u%04X",
52
4
              static_cast<uint16_t>(static_cast<uint16_t>(c)));
53
4
          result += number_buffer;
54
        } else {
55
7432
          result.append(value + p, i - p);
56
        }
57
    }
58
  }
59
#else
60
  // If we do not have ICU, use a modified version of the non-UTF8 aware
61
  // code from V8's own TracedValue implementation. Note, however, This
62
  // will not produce correctly serialized results for UTF8 values.
63
  while (*value) {
64
    char c = *value++;
65
    switch (c) {
66
      case '\b': result += "\\b"; break;
67
      case '\f': result += "\\f"; break;
68
      case '\n': result += "\\n"; break;
69
      case '\r': result += "\\r"; break;
70
      case '\t': result += "\\t"; break;
71
      case '\\': result += "\\\\"; break;
72
      case '"': result += "\\\""; break;
73
      default:
74
        if (c < '\x20') {
75
          snprintf(
76
              number_buffer, arraysize(number_buffer), "\\u%04X",
77
              static_cast<unsigned>(static_cast<unsigned char>(c)));
78
          result += number_buffer;
79
        } else {
80
          result += c;
81
        }
82
    }
83
  }
84
#endif  // defined(NODE_HAVE_I18N_SUPPORT)
85
1066
  result += '"';
86
1066
  return result;
87
}
88
89
10
std::string DoubleToCString(double v) {
90

10
  switch (FPCLASSIFY_NAMESPACE::fpclassify(v)) {
91
2
    case FP_NAN: return "\"NaN\"";
92
4
    case FP_INFINITE: return (v < 0.0 ? "\"-Infinity\"" : "\"Infinity\"");
93
    case FP_ZERO: return "0";
94
    default:
95
      // This is a far less sophisticated version than the one used inside v8.
96
8
      std::ostringstream stream;
97
4
      stream.imbue(std::locale("C"));  // Ignore locale
98
4
      stream << v;
99
4
      return stream.str();
100
  }
101
}
102
103
}  // namespace
104
105
92
std::unique_ptr<TracedValue> TracedValue::Create() {
106
92
  return std::unique_ptr<TracedValue>(new TracedValue(false));
107
}
108
109
2
std::unique_ptr<TracedValue> TracedValue::CreateArray() {
110
2
  return std::unique_ptr<TracedValue>(new TracedValue(true));
111
}
112
113
94
TracedValue::TracedValue(bool root_is_array) :
114
94
    first_item_(true), root_is_array_(root_is_array) {}
115
116
51
void TracedValue::SetInteger(const char* name, int value) {
117
51
  WriteName(name);
118
51
  data_ += std::to_string(value);
119
51
}
120
121
5
void TracedValue::SetDouble(const char* name, double value) {
122
5
  WriteName(name);
123
5
  data_ += DoubleToCString(value);
124
5
}
125
126
2
void TracedValue::SetBoolean(const char* name, bool value) {
127
2
  WriteName(name);
128
2
  data_ += value ? "true" : "false";
129
2
}
130
131
1
void TracedValue::SetNull(const char* name) {
132
1
  WriteName(name);
133
1
  data_ += "null";
134
1
}
135
136
1029
void TracedValue::SetString(const char* name, const char* value) {
137
1029
  WriteName(name);
138
1029
  data_ += EscapeString(value);
139
1029
}
140
141
115
void TracedValue::BeginDictionary(const char* name) {
142
115
  WriteName(name);
143
115
  data_ += '{';
144
115
  first_item_ = true;
145
115
}
146
147
17
void TracedValue::BeginArray(const char* name) {
148
17
  WriteName(name);
149
17
  data_ += '[';
150
17
  first_item_ = true;
151
17
}
152
153
1
void TracedValue::AppendInteger(int value) {
154
1
  WriteComma();
155
1
  data_ += std::to_string(value);
156
1
}
157
158
5
void TracedValue::AppendDouble(double value) {
159
5
  WriteComma();
160
5
  data_ += DoubleToCString(value);
161
5
}
162
163
2
void TracedValue::AppendBoolean(bool value) {
164
2
  WriteComma();
165
2
  data_ += value ? "true" : "false";
166
2
}
167
168
1
void TracedValue::AppendNull() {
169
1
  WriteComma();
170
1
  data_ += "null";
171
1
}
172
173
37
void TracedValue::AppendString(const char* value) {
174
37
  WriteComma();
175
37
  data_ += EscapeString(value);
176
37
}
177
178
1
void TracedValue::BeginDictionary() {
179
1
  WriteComma();
180
1
  data_ += '{';
181
1
  first_item_ = true;
182
1
}
183
184
void TracedValue::BeginArray() {
185
  WriteComma();
186
  data_ += '[';
187
  first_item_ = true;
188
}
189
190
116
void TracedValue::EndDictionary() {
191
116
  data_ += '}';
192
116
  first_item_ = false;
193
116
}
194
195
17
void TracedValue::EndArray() {
196
17
  data_ += ']';
197
17
  first_item_ = false;
198
17
}
199
200
1267
void TracedValue::WriteComma() {
201
1267
  if (first_item_) {
202
226
    first_item_ = false;
203
  } else {
204
1041
    data_ += ',';
205
  }
206
1267
}
207
208
1220
void TracedValue::WriteName(const char* name) {
209
1220
  WriteComma();
210
1220
  data_ += '"';
211
1220
  data_ += name;
212
1220
  data_ += "\":";
213
1220
}
214
215
203
void TracedValue::AppendAsTraceFormat(std::string* out) const {
216
203
  *out += root_is_array_ ? '[' : '{';
217
203
  *out += data_;
218
203
  *out += root_is_array_ ? ']' : '}';
219
203
}
220
221
}  // namespace tracing
222
}  // namespace node