public override Action <TBaseType, TResult> OverrideSetter <TBaseType, TDeclaringType, TConstructedType, TResult>(
PropertyInfo property)
{
//this code will run once per implementing property
var propertyName = property.Name;
var setter = PropertyImplementation <TBaseType, TDeclaringType> .GetSetter <TResult>(propertyName);
var getter = PropertyImplementation <TBaseType, TDeclaringType> .GetGetter <TResult>(propertyName);
var comparer = EqualityComparer <TResult> .Default;
return((pthis, value) =>
{
//constructed delegate will run every time accessing property.
if (!comparer.Equals(value, getter(pthis)))
{
setter(pthis, value);
pthis.OnPropertyChanged(new PropertyChangedEventArgs(propertyName));
}
});
}
/// <summary>
/// Overriding property setter implementation.
/// </summary>
/// <typeparam name="TBaseType">Base type for implementation. TBaseType must be TConcept, and inherits all its constraints. Also TBaseType is TDeclaringType.</typeparam>
/// <typeparam name="TDeclaringType">Type, declaring property.</typeparam>
/// <typeparam name="TConstructedType">Constructed type. TConstructedType is TDeclaringType and TBaseType.</typeparam>
/// <typeparam name="TResult">Type of property.</typeparam>
/// <param name="property">PropertyInfo of property.</param>
/// <returns>Delegate, corresponding to property setter implementation.</returns>
public override Action <TBaseType, TResult> OverrideSetter <TBaseType, TDeclaringType, TConstructedType, TResult>(PropertyInfo property)
{
var eventArgs = new PropertyChangedEventArgs(property.Name);
//get delegates for base calls.
Action <TBaseType, TResult> setter = PropertyImplementation <TBaseType, TDeclaringType> .GetSetter <TResult>(property.Name);
Func <TBaseType, TResult> getter = PropertyImplementation <TBaseType, TDeclaringType> .GetGetter <TResult>(property.Name);
var comparer = EqualityComparer <TResult> .Default;
return((pthis, value) =>
{
if (comparer.Equals(value, getter(pthis)))
{
return;
}
//base. call
setter(pthis, value);
//Directly accessing Concept's protected method.
pthis.OnPropertyChanged(eventArgs);
});
}
/// <summary>
/// Overriding property setter implementation.
/// </summary>
/// <typeparam name="TBaseType">Base type for implementation. TBaseType must be TConcept, and inherits all its constraints. Also TBaseType is TDeclaringType.</typeparam>
/// <typeparam name="TDeclaringType">Type, declaring property.</typeparam>
/// <typeparam name="TConstructedType">Constructed type. TConstructedType is TDeclaringType and TBaseType.</typeparam>
/// <typeparam name="TResult">Type of property.</typeparam>
/// <param name="property">PropertyInfo of property.</param>
/// <returns>Delegate, corresponding to property setter implementation.</returns>
public override Action <TBaseType, TResult> OverrideSetter <TBaseType, TDeclaringType, TConstructedType, TResult>(PropertyInfo property)
{
//This code called once for each declared property on derived type's initialization.
//EventArgs instance is shared between all events for each concrete property.
var eventArgs = new PropertyChangedEventArgs(property.Name);
//get delegates for base calls.
Action <TBaseType, TResult> setter = PropertyImplementation <TBaseType, TDeclaringType> .GetSetter <TResult>(property.Name);
Func <TBaseType, TResult> getter = PropertyImplementation <TBaseType, TDeclaringType> .GetGetter <TResult>(property.Name);
var comparer = EqualityComparer <TResult> .Default;
return((pthis, value) =>
{ //This code executes each time property setter is called.
if (comparer.Equals(value, getter(pthis)))
{
return;
}
//base. call
setter(pthis, value);
//Directly accessing Concept's protected method.
pthis.OnPropertyChanged(eventArgs);
});
}
public override Func <TBaseType, TResult> OverrideGetter <TBaseType, TDeclaringType, TConstructedType, TResult>(
PropertyInfo property)
{
//this code will run once per implementing property
return(PropertyImplementation <TBaseType, TDeclaringType> .GetGetter <TResult>(property.Name));
}
public override Func <TBaseType, TResult> OverrideGetter <TBaseType, TDeclaringType, TConstructedType, TResult>(PropertyInfo property)
{
return(PropertyImplementation <TBaseType, TDeclaringType> .GetGetter <TResult>(property.Name));
}