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| 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 #ifndef V8_TRACING_TRACED_VALUE_H_ |
| 6 #define V8_TRACING_TRACED_VALUE_H_ |
| 7 |
| 8 #include <stddef.h> |
| 9 #include <memory> |
| 10 #include <string> |
| 11 #include <vector> |
| 12 |
| 13 #include "include/v8-platform.h" |
| 14 #include "src/base/macros.h" |
| 15 |
| 16 namespace v8 { |
| 17 namespace tracing { |
| 18 |
| 19 class TracedValue : public ConvertableToTraceFormat { |
| 20 public: |
| 21 ~TracedValue() override; |
| 22 |
| 23 static std::unique_ptr<TracedValue> Create(); |
| 24 |
| 25 void EndDictionary(); |
| 26 void EndArray(); |
| 27 |
| 28 // These methods assume that |name| is a long lived "quoted" string. |
| 29 void SetInteger(const char* name, int value); |
| 30 void SetDouble(const char* name, double value); |
| 31 void SetBoolean(const char* name, bool value); |
| 32 void SetString(const char* name, const std::string& value); |
| 33 void BeginDictionary(const char* name); |
| 34 void BeginArray(const char* name); |
| 35 |
| 36 void AppendInteger(int); |
| 37 void AppendDouble(double); |
| 38 void AppendBoolean(bool); |
| 39 void AppendString(const std::string&); |
| 40 void BeginArray(); |
| 41 void BeginDictionary(); |
| 42 |
| 43 // ConvertableToTraceFormat implementation. |
| 44 void AppendAsTraceFormat(std::string* out) const override; |
| 45 |
| 46 private: |
| 47 TracedValue(); |
| 48 |
| 49 void WriteComma(); |
| 50 void WriteName(const char* name); |
| 51 |
| 52 #ifdef DEBUG |
| 53 // In debug builds checks the pairings of {Begin,End}{Dictionary,Array} |
| 54 std::vector<bool> nesting_stack_; |
| 55 #endif |
| 56 |
| 57 std::string data_; |
| 58 bool first_item_; |
| 59 |
| 60 DISALLOW_COPY_AND_ASSIGN(TracedValue); |
| 61 }; |
| 62 |
| 63 } // namespace tracing |
| 64 } // namespace v8 |
| 65 |
| 66 #endif // V8_TRACING_TRACED_VALUE_H_ |
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