third_party/WebKit/Source/core/timing/PerformanceEntry.cpp

/*
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#include "core/timing/PerformanceEntry.h"

#include "base/atomic_sequence_num.h"
#include "bindings/core/v8/ScriptValue.h"
#include "bindings/core/v8/V8ObjectBuilder.h"

namespace blink {

namespace {
static base::AtomicSequenceNumber index_seq;
}

PerformanceEntry::PerformanceEntry(const String& name,
                                   const String& entry_type,
                                   double start_time,
                                   double finish_time)
    : name_(name),
      entry_type_(entry_type),
      start_time_(start_time),
      duration_(finish_time - start_time),
      entry_type_enum_(ToEntryTypeEnum(entry_type)),
      index_(index_seq.GetNext()) {}

PerformanceEntry::~PerformanceEntry() = default;

String PerformanceEntry::name() const {
  return name_;
}

String PerformanceEntry::entryType() const {
  return entry_type_;
}

DOMHighResTimeStamp PerformanceEntry::startTime() const {
  return start_time_;
}

DOMHighResTimeStamp PerformanceEntry::duration() const {
  return duration_;
}

PerformanceEntry::EntryType PerformanceEntry::ToEntryTypeEnum(
    const String& entry_type) {
  if (entry_type == "composite")
    return kComposite;
  if (entry_type == "longtask")
    return kLongTask;
  if (entry_type == "mark")
    return kMark;
  if (entry_type == "measure")
    return kMeasure;
  if (entry_type == "render")
    return kRender;
  if (entry_type == "resource")
    return kResource;
  if (entry_type == "navigation")
    return kNavigation;
  if (entry_type == "taskattribution")
    return kTaskAttribution;
  if (entry_type == "paint")
    return kPaint;
  return kInvalid;
}

ScriptValue PerformanceEntry::toJSONForBinding(
    ScriptState* script_state) const {
  V8ObjectBuilder result(script_state);
  BuildJSONValue(result);
  return result.GetScriptValue();
}

void PerformanceEntry::BuildJSONValue(V8ObjectBuilder& builder) const {
  builder.AddString("name", name());
  builder.AddString("entryType", entryType());
  builder.AddNumber("startTime", startTime());
  builder.AddNumber("duration", duration());
}

}  // namespace blink