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Refactor trend indicators to use record structs for state management

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This commit is contained in:
Miha Kralj
2025-12-10 21:58:45 -05:00
parent cfc54bf1f7
commit e6033638ad
17 changed files with 390 additions and 484 deletions
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lib/trends/conv/Conv.cs
+14 -15
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@@ -25,10 +25,9 @@ public sealed class Conv : ITValuePublisher
private readonly double[] _kernel;
private readonly RingBuffer _buffer;
private double _lastValidValue;
// State for bar correction
private double _p_lastValidValue;
private record struct State(double LastValidValue);
private State _state;
private State _p_state;
public string Name { get; }
public TValue Last { get; private set; }
@@ -45,8 +44,8 @@ public sealed class Conv : ITValuePublisher
Array.Copy(kernel, _kernel, _period);
_buffer = new RingBuffer(_period);
Name = $"Conv({_period})";
_lastValidValue = double.NaN;
_p_lastValidValue = double.NaN;
_state.LastValidValue = double.NaN;
_p_state.LastValidValue = double.NaN;
}
public Conv(ITValuePublisher source, double[] kernel) : this(kernel)
@@ -59,10 +58,10 @@ public sealed class Conv : ITValuePublisher
{
if (double.IsFinite(input))
{
_lastValidValue = input;
_state.LastValidValue = input;
return input;
}
return _lastValidValue;
return _state.LastValidValue;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
@@ -70,11 +69,11 @@ public sealed class Conv : ITValuePublisher
{
if (isNew)
{
_p_lastValidValue = _lastValidValue;
_p_state = _state;
}
else
{
_lastValidValue = _p_lastValidValue;
_state = _p_state;
}
double val = GetValidValue(input.Value);
@@ -145,14 +144,14 @@ public sealed class Conv : ITValuePublisher
{
if (double.IsFinite(sourceValues[i]))
{
_lastValidValue = sourceValues[i];
_state.LastValidValue = sourceValues[i];
break;
}
}
}
else
{
_lastValidValue = double.NaN;
_state.LastValidValue = double.NaN;
}
_buffer.Clear();
@@ -168,7 +167,7 @@ public sealed class Conv : ITValuePublisher
Last = new TValue(source.Times[len - 1], vSpan[len - 1]);
// Save state for isNew=false
_p_lastValidValue = _lastValidValue;
_p_state = _state;
return new TSeries(t, v);
}
@@ -241,8 +240,8 @@ public sealed class Conv : ITValuePublisher
public void Reset()
{
_buffer.Clear();
_lastValidValue = double.NaN;
_p_lastValidValue = double.NaN;
_state.LastValidValue = double.NaN;
_p_state.LastValidValue = double.NaN;
Last = default;
}
}