/// <summary>
/// Generates an expression tree to handle ExpandoObject serialization
/// </summary>
/// <param name="type">Type of <paramref name="objToSerialize"/></param>
/// <param name="variables">Global variables for the expression tree</param>
/// <param name="outputStream">Stream to write to</param>
/// <param name="objToSerialize">Object to serialize</param>
/// <param name="objTracking">Reference tracker</param>
/// <returns>An expression tree to handle ExpandoObject serialization</returns>
public static Expression GenerateExpandoObjectExpression(Type type,
List <ParameterExpression> variables,
ParameterExpression outputStream,
ParameterExpression objToSerialize,
ParameterExpression objTracking)
{
var enumerableType = typeof(IEnumerable <KeyValuePair <string, object> >);
var getEnumeratorMethodInfo = IEnumerableMih.GetEnumerator <string, object>();
var enumeratorMethod = Expression.Call(Expression.Convert(objToSerialize, enumerableType), getEnumeratorMethodInfo);
var loopBodyCargo = new EnumerableLoopBodyCargo();
loopBodyCargo.EnumeratorType = typeof(IEnumerator <KeyValuePair <string, object> >);
loopBodyCargo.KvpType = typeof(KeyValuePair <string, object>);
var preLoopActions = new List <Expression>();
preLoopActions.Add(PrimitiveHelpers.WriteInt32(outputStream, Expression.Property(Expression.Convert(objToSerialize, typeof(ICollection <KeyValuePair <string, object> >)), CollectionMih.Count <KeyValuePair <string, object> >()), objTracking));
var notTrackedExpressions = new List <Expression>();
notTrackedExpressions.Add(Expression.Call(objTracking, SerializerObjectTrackerMih.TrackObject(), objToSerialize));
notTrackedExpressions.Add(EnumerableLoopHelper.GenerateEnumeratorLoop(variables,
EnumerableLoopHelper.GetStringToSomethingWriter(outputStream, objTracking),
enumeratorMethod,
preLoopActions,
loopBodyCargo));
return(Serializer.GenerateNullTrackedOrUntrackedExpression(type,
outputStream,
objToSerialize,
objTracking,
notTrackedExpressions,
variables));
}
/// <summary>
/// Generate an expression tree that clones ExpandoObject
/// </summary>
/// <param name="variables">Global variables for the expression tree</param>
/// <param name="source">Source object</param>
/// <param name="clone">Clone object</param>
/// <param name="refTrackerParam">Reference tracker</param>
/// <returns>An expression tree that clones ExpandoObject</returns>
public static Expression GenerateExpandoObjectExpression(List <ParameterExpression> variables,
ParameterExpression source,
ParameterExpression clone,
ParameterExpression refTrackerParam)
{
var enumerableType = typeof(IEnumerable <KeyValuePair <string, object> >);
var getEnumeratorMethodInfo = IEnumerableMih.GetEnumerator <string, object>();
var enumeratorMethod = Expression.Call(Expression.Convert(source, enumerableType), getEnumeratorMethodInfo);
var dictType = typeof(IDictionary <string, object>);
var cloneAsDict = Expression.Parameter(dictType, "cloneDict");
var expressions = new List <Expression>();
variables.Add(cloneAsDict);
expressions.Add(Expression.Assign(clone, Expression.New(typeof(ExpandoObject))));
expressions.Add(Expression.Assign(cloneAsDict, Expression.Convert(clone, dictType)));
expressions.Add(Expression.Call(refTrackerParam, ObjectClonerReferenceTrackerMih.Track(), source, clone));
var loopBodyCargo = new EnumerableLoopBodyCargo();
loopBodyCargo.EnumeratorType = typeof(IEnumerator <KeyValuePair <string, object> >);
loopBodyCargo.KvpType = typeof(KeyValuePair <string, object>);
expressions.Add(EnumerableLoopHelper.GenerateEnumeratorLoop(variables,
CloneKeyValuePair(clone, refTrackerParam),
enumeratorMethod,
null,
loopBodyCargo));
return(ObjectCloner.GenerateNullTrackedOrUntrackedExpression(source,
clone,
typeof(ExpandoObject),
refTrackerParam,
Expression.Block(expressions)));
}
