third_party/WebKit/Source/platform/TracedValue.h

   1 // Copyright 2014 The Chromium 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 TracedValue_h
   6 #define TracedValue_h
   7
   8 #include "platform/EventTracer.h"
   9
  10 #include "wtf/PassRefPtr.h"
  11 #include "wtf/text/WTFString.h"
  12
  13 namespace blink {
  14 class TracedArrayValue;
  15 class TracedDictionaryValue;
  16 class InternalValue;
  17
  18 // TODO(bashi): Use Allocator which counts allocation size as tracing overhead.
  19 typedef Vector<RefPtr<InternalValue>> TracedValueVector;
  20 typedef HashMap<String, RefPtr<InternalValue>> TracedValueHashMap;
  21
  22 class PLATFORM_EXPORT TracedValue : public TraceEvent::ConvertableToTraceFormat {
  23     WTF_MAKE_NONCOPYABLE(TracedValue);
  24
  25 public:
  26     static PassRefPtr<TracedValue> create();
  27
  28     void endDictionary();
  29     void endArray();
  30
  31     void setInteger(const char* name, int value);
  32     void setDouble(const char* name, double);
  33     void setBoolean(const char* name, bool value);
  34     void setString(const char* name, const String& value);
  35     void beginArray(const char* name);
  36     void beginDictionary(const char* name);
  37
  38     void pushInteger(int);
  39     void pushDouble(double);
  40     void pushBoolean(bool);
  41     void pushString(const String&);
  42     void beginArray();
  43     void beginDictionary();
  44
  45     String asTraceFormat() const override;
  46
  47 private:
  48     TracedValue();
  49     ~TracedValue() override;
  50
  51     TracedDictionaryValue* currentDictionary() const;
  52     TracedArrayValue* currentArray() const;
  53
  54     TracedValueVector m_stack;
  55 };
  56
  57 } // namespace blink
  58
  59 #endif // TracedValue_h