public virtual void SetPropertyValue <TVal>(TVal value, [CallerMemberName] string prop = null)
{
var paths = Helpers.ParsePropertyParts(prop);
if (paths.Length == 0)
{
return;
}
int lastIndex = 0;
//check if last path was an indexer
/*
* A=value -> Get Owner = this, owner["A"] = value
* A.B=value -> Get Owner = A, owner["B"] = value
* Item[A,B]=value -> Get Indexer = Item[A,B],indexer[A,B] = value
* A.Item[A,B]=value -> Get Indexer = Item[A,B], indexer [A,B] = value
*/
var lastPath = paths[paths.Length - 1];
if (lastPath.Contains("["))
{
//last part is an indexer
lastIndex = paths.Length - 1;
}
else
{
lastIndex = paths.Length - 2;
}
DescribableObject curObj = this;
//end loop before reaching last part
for (int i = 0; i <= lastIndex; i++)
{
if (curObj == null)
{
break;
}
//each iteration yields a curObj or an ownerIndexer
var path = paths[i];
var purePath = path.Contains("[") ? path.Substring(0, path.IndexOf('[')) : path;
if (purePath.Length == 0)
{
purePath = "Item";
}
if (curObj.InternalDictionary.TryGetValue(purePath, out DescribableProperty dProperty))
{
if (path.Contains("["))
{
IndexerDescriptorContainer idc;
if (dProperty.Value is IndexerDescriptorContainer)
{
idc = dProperty.Value as IndexerDescriptorContainer;
}
else if (dProperty.Value is DescribableObject dindexer)
{
idc = dindexer.InternalDictionary["Item"].Value as IndexerDescriptorContainer;
Console.WriteLine("A logically impossible case just happened ! please tell the developers (me) that they suck");
}
else
{
return;
}
//now we have the indexer container, curObj = result value, or either final value = result value
var pureIndexedParameters = path.Substring(path.IndexOf('[') + 1, path.Length - purePath.Length - 2);
var desc = idc.GetDescriptor(pureIndexedParameters, out var indices, out bool suc);
if (!suc)
{
return;
}
var matchDict = new MethodParameterValue[desc.Parameters.Length];
for (int j = 0; j < desc.Parameters.Length; j++)
{
var param = desc.Parameters[j];
matchDict[j] = new MethodParameterValue(param, indices[j]);
}
if (i == lastIndex)
{
//set indexer here
if (desc.IsReadOnly)
{
return;
}
curObj.Before_Set(path, value);
desc.SetValue(matchDict, value);
curObj.After_Set(path, value);
return;
}
else
{
//get owner object
var IndexerRes = desc.GetValue <object>(matchDict);
//check indexer result
if (IndexerRes is DescribableObject d)
{
curObj = d;
}
else
{
curObj = null;
}
}
}
else if (dProperty.Value is DescribableObject d)
{
curObj = d;
}
else
{
curObj = null;
}
}
else
{
return;
}
}
if (curObj == null)
{
return;
}
if (curObj.InternalDictionary.TryGetValue(lastPath, out var dp))
{
if (dp.IsReadOnly)
{
return;
}
curObj.Before_Set(dp.Name, value);
dp.Value = value;
curObj.After_Set(dp.Name, value);
}
else
{
dp = new DescribableProperty(lastPath, false)
{
Value = value
};
//unregistered property
curObj.Before_Set(dp.Name, value);
curObj.InternalDictionary[lastPath] = dp;
curObj.After_Set(dp.Name, value);
}
}
public virtual object GetPropertyValue([CallerMemberName] string prop = null)
{
var paths = Helpers.ParsePropertyParts(prop);
if (paths.Length == 0)
{
return(null);
}
DescribableObject curObj = this;
object finalVal = null;
for (int i = 0; i < paths.Length; i++)
{
if (curObj == null)
{
break;
}
//each iteration yields a finalVal and a curObj
var path = paths[i];
var purePath = path.Contains("[") ? path.Substring(0, path.IndexOf('[')) : path;
if (purePath.Length == 0)
{
purePath = "Item";
}
if (curObj.InternalDictionary.TryGetValue(purePath, out DescribableProperty dProperty))
{
if (path.Contains("["))
{
IndexerDescriptorContainer idc;
if (dProperty.Value is IndexerDescriptorContainer)
{
idc = dProperty.Value as IndexerDescriptorContainer;
}
else if (dProperty.Value is DescribableObject dindexer)
{
idc = dindexer.InternalDictionary["Item"].Value as IndexerDescriptorContainer;
}
else
{
return(null);
}
//now we have the indexer container, curObj = result value, or either final value = result value
var pureIndexedParameters = path.Substring(path.IndexOf('[') + 1, path.Length - purePath.Length - 2);
var desc = idc.GetDescriptor(pureIndexedParameters, out var vals, out bool suc);
if (!suc)
{
return(null);
}
var matchDict = new MethodParameterValue[desc.Parameters.Length];
for (int j = 0; j < desc.Parameters.Length; j++)
{
var param = desc.Parameters[j];
matchDict[j] = new MethodParameterValue(param, vals[j]);
}
var IndexerRes = desc.GetValue <object>(matchDict);
//check indexer result
if (IndexerRes is DescribableObject d)
{
curObj = d;
finalVal = d;
}
else
{
curObj = null;
finalVal = IndexerRes;
}
}
else if (dProperty.Value is DescribableObject d)
{
curObj = d;
finalVal = d;
}
else
{
curObj = null;
finalVal = dProperty.Value;
}
}
else
{
//property doesn't exist
return(null);
}
}
return(finalVal);
}
