private IEnumerable <Expression> CreateNewBuildupSequence(DynamicBuildPlanGenerationContext buildContext, SelectedConstructor selectedConstructor, string signature) { var parameterExpressions = BuildConstructionParameterExpressions(buildContext, selectedConstructor, signature); var newItemExpression = Expression.Variable(selectedConstructor.Constructor.DeclaringType, "newItem"); yield return(Expression.Call(null, SetCurrentOperationToInvokingConstructorMethod, Expression.Constant(signature), buildContext.ContextParameter)); yield return(Expression.Assign( buildContext.GetExistingObjectExpression(), Expression.Convert( Expression.New(selectedConstructor.Constructor, parameterExpressions), typeof(object)))); yield return(buildContext.GetClearCurrentOperationExpression()); }