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Make _RelativeClock extends _SystemClock #3

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Make _RelativeClock extends _SystemClock #3

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22 changes: 9 additions & 13 deletions lib/src/relative_clock.dart
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Original file line number Diff line number Diff line change
@@ -1,24 +1,20 @@

part of clock;

typedef Duration _Elapsed();

class _RelativeClock implements Clock {

class _RelativeClock implements _SystemClock {
final DateTime _initialTime;
final _Elapsed _elapsed;
final int _frequency;

_RelativeClock({
DateTime initialTime,
Duration elapsed(),
int frequency: 1000000
})
: _initialTime = initialTime == null ? _zonedClock.value.now : initialTime,

_RelativeClock(
{DateTime initialTime, Duration elapsed(), int frequency: 1000000})
: _initialTime =
initialTime == null ? _zonedClock.value.now : initialTime,
_elapsed = elapsed == null ? (() => Duration.ZERO) : elapsed,
_frequency = frequency;

DateTime get now => _initialTime.add(_elapsed());
Stopwatch getStopwatch() => new FakeStopwatch(() =>
_elapsed().inMicroseconds * _frequency ~/ 1000000, _frequency);
Stopwatch getStopwatch() => new FakeStopwatch(
() => _elapsed().inMicroseconds * _frequency ~/ 1000000, _frequency);
}