public static IEnumerable <SettableInfo> Decompose <T, U>(Expression <PropertyPath <T, U> .Property> property)
{
List <SettableInfo> properties = new List <SettableInfo>();
Expression body = property.Body;
while (!(body is ParameterExpression))
{
var bodyUe = body as UnaryExpression;
if (bodyUe != null)
{
MemberExpression memEx = bodyUe.Operand as MemberExpression;
properties.Add(SettableInfo.New(memEx.Member));
body = memEx.Expression;
continue;
}
var bodyMe = body as MemberExpression;
if (bodyMe != null)
{
properties.Add(SettableInfo.New(bodyMe.Member));
body = bodyMe.Expression;
continue;
}
}
return(properties.Reverse <SettableInfo>());
}
public static SettableInfo[] GetSettables(this Type type)
{
var fields = type.GetFields().Select(z => SettableInfo.New(z));
var properties = type.GetProperties().Select(z => SettableInfo.New(z));
return(fields.Concat(properties).ToArray());
}
public object Get(object source)
{
object target = source;
for (int n = 0; n < _properties.Length; n++)
{
SettableInfo property = _properties[n];
target = property.GetValue(target);
if ((n != _properties.Length - 1) && target == null)
{
target = TryToCreateTarget(property.PropertyType);
}
}
return(target);
}
public void Set(object target, object value)
{
for (int n = 0; n < _properties.Length; n++)
{
SettableInfo property = _properties[n];
if (n == _properties.Length - 1)
{
property.SetValue(target, value);
}
else
{
object lastTarget = target;
target = property.GetValue(target);
if (target == null)
{
target = TryToCreateTarget(property.PropertyType);
property.SetValue(lastTarget, target);
}
}
}
}
