/// <summary>
/// Unifies this set of feature values with the specified set of feature values. If the specified
/// set of feature values does not contain a feature specified in this set of feature values, then the
/// default value will be used for that feature.
/// </summary>
/// <param name="fv">The feature values.</param>
/// <param name="output">The unification.</param>
/// <returns><c>true</c> if the feature values could be unified, otherwise <c>false</c>.</returns>
public bool UnifyDefaults(FeatureValues fv, out FeatureValues output)
{
output = fv.Clone();
foreach (KeyValuePair <Feature, ValueInstance> kvp in m_values)
{
ValueInstance value;
if (fv.m_values.TryGetValue(kvp.Key, out value))
{
ValueInstance vi = null;
if (kvp.Value != null && !kvp.Value.UnifyDefaults(value, out vi))
{
output = null;
return(false);
}
output.m_values[kvp.Key] = vi;
}
else if (kvp.Key.DefaultValue != null)
{
ValueInstance vi = null;
if (kvp.Value != null && !kvp.Value.UnifyDefaults(kvp.Key.DefaultValue, out vi))
{
output = null;
return(false);
}
output.m_values[kvp.Key] = vi;
}
else
{
output.m_values[kvp.Key] = kvp.Value;
}
}
return(true);
}
public override bool IsMatch(ValueInstance other)
{
ClosedValueInstance vi = other as ClosedValueInstance;
HCObjectSet <FeatureValue> intersection = m_values.Intersection(vi.m_values);
return(intersection.Count > 0);
}
public override bool UnifyDefaults(ValueInstance other, out ValueInstance output)
{
FeatureValues fvs;
if (UnifyDefaults(other as FeatureValues, out fvs))
{
output = fvs;
return(true);
}
else
{
output = null;
return(false);
}
}
public override bool Unify(ValueInstance other, out ValueInstance output)
{
ClosedValueInstance vi = other as ClosedValueInstance;
HCObjectSet <FeatureValue> intersection = m_values.Intersection(vi.m_values);
if (intersection.Count > 0)
{
output = new ClosedValueInstance(intersection);
return(true);
}
else
{
output = null;
return(false);
}
}
public override bool UnifyDefaults(ValueInstance other, out ValueInstance output)
{
FeatureValues fvs;
if (UnifyDefaults(other as FeatureValues, out fvs))
{
output = fvs;
return true;
}
else
{
output = null;
return false;
}
}
public override bool UnifyDefaults(ValueInstance other, out ValueInstance output)
{
return(Unify(other, out output));
}
public abstract bool IsMatch(ValueInstance other);
public abstract bool IsCompatible(ValueInstance other);
public override bool IsMatch(ValueInstance other)
{
return(IsMatch(other as FeatureValues));
}
public abstract bool IsMatch(ValueInstance other);
public override bool IsCompatible(ValueInstance other)
{
return(IsMatch(other));
}
public abstract bool IsCompatible(ValueInstance other);
/// <summary>
/// Adds the specified feature-value pair.
/// </summary>
/// <param name="feature">The feature.</param>
/// <param name="value">The value.</param>
public void Add(Feature feature, ValueInstance value)
{
m_values[feature] = value;
}
public override bool IsCompatible(ValueInstance other)
{
return IsMatch(other);
}
public override bool IsMatch(ValueInstance other)
{
ClosedValueInstance vi = other as ClosedValueInstance;
HCObjectSet<FeatureValue> intersection = m_values.Intersection(vi.m_values);
return intersection.Count > 0;
}
public override bool UnifyDefaults(ValueInstance other, out ValueInstance output)
{
return Unify(other, out output);
}
public override bool Unify(ValueInstance other, out ValueInstance output)
{
ClosedValueInstance vi = other as ClosedValueInstance;
HCObjectSet<FeatureValue> intersection = m_values.Intersection(vi.m_values);
if (intersection.Count > 0)
{
output = new ClosedValueInstance(intersection);
return true;
}
else
{
output = null;
return false;
}
}
/// <summary>
/// Adds the specified feature-value pair.
/// </summary>
/// <param name="feature">The feature.</param>
/// <param name="value">The value.</param>
public void Add(Feature feature, ValueInstance value)
{
m_values[feature] = value;
}
public override bool IsMatch(ValueInstance other)
{
return IsMatch(other as FeatureValues);
}
public override bool IsCompatible(ValueInstance other)
{
return IsCompatible(other as FeatureValues);
}
public abstract bool UnifyDefaults(ValueInstance other, out ValueInstance output);
public override bool IsCompatible(ValueInstance other)
{
return(IsCompatible(other as FeatureValues));
}
public abstract bool UnifyDefaults(ValueInstance other, out ValueInstance output);
