module T::Profile

def reset
  @typecheck_duration = 0
  @typecheck_samples = 0
  @typecheck_sample_attempts = SAMPLE_RATE
end

def typecheck_count_estimate
  typecheck_samples * SAMPLE_RATE
end

def typecheck_duration_estimate
  total_typechecks = typecheck_samples * SAMPLE_RATE + (SAMPLE_RATE - typecheck_sample_attempts)
  typechecks_measured = typecheck_samples * SAMPLE_RATE
  if typechecks_measured.positive?
    typecheck_duration * SAMPLE_RATE * 1.0 * total_typechecks / typechecks_measured
  else
    0.0
  end
end