profile

type Profile struct {
	LoadedPkgNum   int
	LoadPkgTime    time.Duration
	LoadedDefsNum  int
	LoadedUsesNum  int
	SearchedNum    int
	SearchedPkgNum int
	SearchedRefNum int
	SearchedDefNum int
	SearchedTime   time.Duration
	FlushedTime    time.Duration
	ElapsedTime    time.Duration
}

type Profiler interface {
	Init()
	Add(search.Use)
	PkgLoaded([]*packages.Package)
	Searched()
	Flushed()
	Result() *Profile
	Write(io.Writer)
}

type Stopwatch interface {
	// Init starts the stopwatch.
	Init()
	// Memory records the elapsed time.
	Memory(id string)
	Result() map[string]*StopwatchRecord
}

type StopwatchRecord struct {
	ID string
	// Elapsed is the elapsed time from Stopwatch.Init().
	Elapsed time.Duration
	// ElapsedSegment is the elapsed time from the previous Stopwatch.Memory()
	// If Stopwatch.Memory() is not called, this is the elapsed time from the Stopwatch.Init().
	ElapsedSegment time.Duration
}