private static Action <THolder, TProperty> CreateSetter <THolder, TProperty>(PropertyInfo property, CreateInvalidSetterOption o)
{
var holderType = Expression.Parameter(typeof(THolder), "e");
var propType = Expression.Parameter(typeof(TProperty), "v");
MethodInfo s = property.GetSetMethod();
if (s == null)
{
if (o == CreateInvalidSetterOption.ThrowException)
{
throw new InvalidOperationException(string.Format("Property '{0}' has no setter.", property.Name));
}
if (o == CreateInvalidSetterOption.NullAction)
{
return(null);
}
return(VoidAction);
}
return((Action <THolder, TProperty>)s.CreateDelegate(typeof(Action <THolder, TProperty>)));
}
/// <summary>
/// Creates a setter fo a property.
/// </summary>
/// <typeparam name="THolder">Property holder type.</typeparam>
/// <typeparam name="TProperty">Property type.</typeparam>
/// <param name="propertyLambda">A lambda function that selects the property.</param>
/// <param name="o">Error handling options. Defaults to <see cref="CreateInvalidSetterOption.ThrowException"/>.</param>
/// <returns>An action that takes an holder instance and the value to set.</returns>
public static Action <THolder, TProperty> CreateSetter <THolder, TProperty>(Expression <Func <THolder, TProperty> > propertyLambda, CreateInvalidSetterOption o = CreateInvalidSetterOption.ThrowException)
{
return(CreateSetter <THolder, TProperty>(ReflectionHelper.DoGetPropertyInfo(propertyLambda), o));
}