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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	json_utils.h	Lines:	96	96	100.0 %
Date:	2022-08-30 04:20:47	Branches:	21	22	95.5 %


#ifndef SRC_JSON_UTILS_H_
#define SRC_JSON_UTILS_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include <iomanip>
#include <ostream>
#include <limits>
#include <string>

namespace node {

std::string EscapeJsonChars(const std::string& str);
std::string Reindent(const std::string& str, int indentation);

// JSON compiler definitions.
class JSONWriter {
 public:
  JSONWriter(std::ostream& out, bool compact)
    : out_(out), compact_(compact) {}

 private:
  inline void indent() { indent_ += 2; }
  inline void deindent() { indent_ -= 2; }
  inline void advance() {
    if (compact_) return;
    for (int i = 0; i < indent_; i++) out_ << ' ';
  }
  inline void write_one_space() {
    if (compact_) return;
    out_ << ' ';
  }
  inline void write_new_line() {
    if (compact_) return;
    out_ << '\n';
  }

 public:
  inline void json_start() {
    if (state_ == kAfterValue) out_ << ',';
    write_new_line();
    advance();
    out_ << '{';
    indent();
    state_ = kObjectStart;
  }

  inline void json_end() {
    write_new_line();
    deindent();
    advance();
    out_ << '}';
    state_ = kAfterValue;
  }
  template <typename T>
  inline void json_objectstart(T key) {
    if (state_ == kAfterValue) out_ << ',';
    write_new_line();
    advance();
    write_string(key);
    out_ << ':';
    write_one_space();
    out_ << '{';
    indent();
    state_ = kObjectStart;
  }

  template <typename T>
  inline void json_arraystart(T key) {
    if (state_ == kAfterValue) out_ << ',';
    write_new_line();
    advance();
    write_string(key);
    out_ << ':';
    write_one_space();
    out_ << '[';
    indent();
    state_ = kObjectStart;
  }
  inline void json_objectend() {
    write_new_line();
    deindent();
    advance();
    out_ << '}';
    if (indent_ == 0) {
      // Top-level object is complete, so end the line.
      out_ << '\n';
    }
    state_ = kAfterValue;
  }

  inline void json_arrayend() {
    write_new_line();
    deindent();
    advance();
    out_ << ']';
    state_ = kAfterValue;
  }
  template <typename T, typename U>
  inline void json_keyvalue(const T& key, const U& value) {
    if (state_ == kAfterValue) out_ << ',';
    write_new_line();
    advance();
    write_string(key);
    out_ << ':';
    write_one_space();
    write_value(value);
    state_ = kAfterValue;
  }

  template <typename U>
  inline void json_element(const U& value) {
    if (state_ == kAfterValue) out_ << ',';
    write_new_line();
    advance();
    write_value(value);
    state_ = kAfterValue;
  }

  struct Null {};  // Usable as a JSON value.

  struct ForeignJSON {
    std::string as_string;
  };

 private:
  template <typename T,
            typename test_for_number = typename std::
                enable_if<std::numeric_limits<T>::is_specialized, bool>::type>
  inline void write_value(T number) {
    if constexpr (std::is_same<T, bool>::value)
      out_ << (number ? "true" : "false");
    else
      out_ << number;
  }

  inline void write_value(Null null) { out_ << "null"; }
  inline void write_value(const char* str) { write_string(str); }
  inline void write_value(const std::string& str) { write_string(str); }

  inline void write_value(const ForeignJSON& json) {
    out_ << Reindent(json.as_string, indent_);
  }

  inline void write_string(const std::string& str) {
    out_ << '"' << EscapeJsonChars(str) << '"';
  }
  inline void write_string(const char* str) { write_string(std::string(str)); }

  enum JSONState { kObjectStart, kAfterValue };
  std::ostream& out_;
  bool compact_;
  int indent_ = 0;
  int state_ = kObjectStart;
};

}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif  // SRC_JSON_UTILS_H_


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			#ifndef SRC_JSON_UTILS_H_
2			#define SRC_JSON_UTILS_H_
3
4			#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
5
6			#include <iomanip>
7			#include <ostream>
8			#include <limits>
9			#include <string>
10
11			namespace node {
12
13			std::string EscapeJsonChars(const std::string& str);
14			std::string Reindent(const std::string& str, int indentation);
15
16			// JSON compiler definitions.
17			class JSONWriter {
18			public:
19		33	JSONWriter(std::ostream& out, bool compact)
20		33	: out_(out), compact_(compact) {}
21
22			private:
23		4965	inline void indent() { indent_ += 2; }
24		4965	inline void deindent() { indent_ -= 2; }
25		39931	inline void advance() {
26	✓✓	39931	if (compact_) return;
27	✓✓	298345	for (int i = 0; i < indent_; i++) out_ << ' ';
28			}
29		30819	inline void write_one_space() {
30	✓✓	30819	if (compact_) return;
31		29855	out_ << ' ';
32			}
33		39931	inline void write_new_line() {
34	✓✓	39931	if (compact_) return;
35		38659	out_ << '\n';
36			}
37
38			public:
39		3691	inline void json_start() {
40	✓✓	3691	if (state_ == kAfterValue) out_ << ',';
41		3691	write_new_line();
42		3691	advance();
43		3691	out_ << '{';
44		3691	indent();
45		3691	state_ = kObjectStart;
46		3691	}
47
48		3658	inline void json_end() {
49		3658	write_new_line();
50		3658	deindent();
51		3658	advance();
52		3658	out_ << '}';
53		3658	state_ = kAfterValue;
54		3658	}
55			template <typename T>
56		1021	inline void json_objectstart(T key) {
57	✓✓	1021	if (state_ == kAfterValue) out_ << ',';
58		1021	write_new_line();
59		1021	advance();
60		1021	write_string(key);
61		1021	out_ << ':';
62		1021	write_one_space();
63		1021	out_ << '{';
64		1021	indent();
65		1021	state_ = kObjectStart;
66		1021	}
67
68			template <typename T>
69		253	inline void json_arraystart(T key) {
70	✓✗	253	if (state_ == kAfterValue) out_ << ',';
71		253	write_new_line();
72		253	advance();
73		253	write_string(key);
74		253	out_ << ':';
75		253	write_one_space();
76		253	out_ << '[';
77		253	indent();
78		253	state_ = kObjectStart;
79		253	}
80		1054	inline void json_objectend() {
81		1054	write_new_line();
82		1054	deindent();
83		1054	advance();
84		1054	out_ << '}';
85	✓✓	1054	if (indent_ == 0) {
86			// Top-level object is complete, so end the line.
87		33	out_ << '\n';
88			}
89		1054	state_ = kAfterValue;
90		1054	}
91
92		253	inline void json_arrayend() {
93		253	write_new_line();
94		253	deindent();
95		253	advance();
96		253	out_ << ']';
97		253	state_ = kAfterValue;
98		253	}
99			template <typename T, typename U>
100		59090	inline void json_keyvalue(const T& key, const U& value) {
101	✓✓	59090	if (state_ == kAfterValue) out_ << ',';
102		59090	write_new_line();
103		59090	advance();
104		59090	write_string(key);
105		59090	out_ << ':';
106		59090	write_one_space();
107		59090	write_value(value);
108		59090	state_ = kAfterValue;
109			}
110
111			template <typename U>
112		912	inline void json_element(const U& value) {
113	✓✓	912	if (state_ == kAfterValue) out_ << ',';
114		912	write_new_line();
115		912	advance();
116		912	write_value(value);
117		912	state_ = kAfterValue;
118		912	}
119
120			struct Null {}; // Usable as a JSON value.
121
122			struct ForeignJSON {
123			std::string as_string;
124			};
125
126			private:
127			template <typename T,
128			typename test_for_number = typename std::
129			enable_if<std::numeric_limits<T>::is_specialized, bool>::type>
130		41634	inline void write_value(T number) {
131			if constexpr (std::is_same<T, bool>::value)
132	✓✓	1520	out_ << (number ? "true" : "false");
133			else
134		40114	out_ << number;
135		41634	}
136
137		33	inline void write_value(Null null) { out_ << "null"; }
138		6934	inline void write_value(const char* str) { write_string(str); }
139		2215	inline void write_value(const std::string& str) { write_string(str); }
140
141		2	inline void write_value(const ForeignJSON& json) {
142		2	out_ << Reindent(json.as_string, indent_);
143		2	}
144
145		39968	inline void write_string(const std::string& str) {
146		39968	out_ << '"' << EscapeJsonChars(str) << '"';
147		39968	}
148		37740	inline void write_string(const char* str) { write_string(std::string(str)); }
149
150			enum JSONState { kObjectStart, kAfterValue };
151			std::ostream& out_;
152			bool compact_;
153			int indent_ = 0;
154			int state_ = kObjectStart;
155			};
156
157			} // namespace node
158
159			#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
160
161			#endif // SRC_JSON_UTILS_H_