public Expression Bind(Expression expression, Type elementType)
{
_alias = new Alias();
_finder = new FieldFinder();
_elementType = elementType;
return Visit(expression);
}
public CollectionExpression(Alias alias, IMongoDatabase database, string collectionName, Type documentType)
: base(MongoExpressionType.Collection, typeof(void), alias)
{
CollectionName = collectionName;
Database = database;
DocumentType = documentType;
}
public Expression Bind(Expression expression, Type elementType)
{
_alias = new Alias();
_memberMap = new Dictionary<MemberInfo, Expression>();
_finder = new FieldFinder(_memberMap);
_elementType = elementType;
return Visit(expression);
}
public FieldProjection ProjectFields(Expression expression, Alias newAlias, params Alias[] existingAliases)
{
_newAlias = newAlias;
_existingAliases = existingAliases;
_fields = new List<FieldDeclaration>();
_fieldNames = new HashSet<string>();
_candidates = _nominator.Nominate(expression);
_map = new Dictionary<FieldExpression, FieldExpression>();
return new FieldProjection(_fields.AsReadOnly(), Visit(expression));
}
private void ProcessRequest(Instance request)
{
try
{
var alias = new Alias
{
AliasValue = Alias
};
var service = request.DirectoryService.Users.Aliases.Insert(alias, UserId);
WriteObject(service.Execute());
}
catch (Exception e)
{
Console.WriteLine("Failed to Add User Alias!");
Console.WriteLine("Error: " + e);
WriteObject(false);
}
}
private Expression BindTake(Expression source, Expression take)
{
var projection = VisitSequence(source);
take = Visit(take);
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(projection.Projector, alias, projection.Source.Alias);
return new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, null, null, null, false, null, take),
fieldProjection.Projector);
}
private Expression BindSelect(Type resultType, Expression source, LambdaExpression selector)
{
var projection = VisitSequence(source);
_map[selector.Parameters[0]] = projection.Projector;
var expression = Visit(selector.Body);
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(expression, alias, projection.Source.Alias);
return new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, null),
fieldProjection.Projector);
}
private Expression BindSkip(Expression source, Expression skip)
{
var projection = VisitSequence(source);
skip = Visit(skip);
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(projection.Projector, alias, projection.Source.Alias);
return new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, null, null, null, false, skip, null),
fieldProjection.Projector);
}
protected virtual Expression BindGroupBy(Expression source, LambdaExpression keySelector, LambdaExpression elementSelector, LambdaExpression resultSelector)
{
var projection = VisitSequence(source);
_map[keySelector.Parameters[0]] = projection.Projector;
var keyExpression = Visit(keySelector.Body);
var elementExpression = projection.Projector;
if (elementSelector != null)
{
_map[elementSelector.Parameters[0]] = projection.Projector;
elementExpression = Visit(elementSelector.Body);
}
var subqueryBasis = VisitSequence(source);
_map[keySelector.Parameters[0]] = subqueryBasis.Projector;
var subqueryKeyExpression = Visit(keySelector.Body);
var subqueryCorrelation = Expression.Equal(keyExpression, subqueryKeyExpression);
var subqueryElementExpression = subqueryBasis.Projector;
if (elementSelector != null)
{
_map[elementSelector.Parameters[0]] = subqueryBasis.Projector;
subqueryElementExpression = Visit(elementSelector.Body);
}
var elementAlias = new Alias();
var elementProjection = _projector.ProjectFields(subqueryElementExpression, elementAlias, subqueryBasis.Source.Alias);
var elementSubquery =
new ProjectionExpression(
new SelectExpression(elementAlias, elementProjection.Fields, subqueryBasis.Source, subqueryCorrelation),
elementProjection.Projector);
var alias = new Alias();
var info = new GroupByInfo(alias, elementExpression);
_groupByMap[elementSubquery] = info;
Expression resultExpression;
if (resultSelector != null)
{
var saveGroupElement = _currentGroupElement;
_currentGroupElement = elementSubquery;
_map[resultSelector.Parameters[0]] = keyExpression;
_map[resultSelector.Parameters[1]] = elementSubquery;
resultExpression = Visit(resultSelector.Body);
_currentGroupElement = saveGroupElement;
}
else
{
resultExpression = Expression.New(
typeof(Grouping<,>).MakeGenericType(keyExpression.Type, subqueryElementExpression.Type).GetConstructors()[0],
new[] { keyExpression, elementSubquery });
}
var fieldProjection = _projector.ProjectFields(resultExpression, alias, projection.Source.Alias);
var projectedElementSubquery = ((NewExpression)fieldProjection.Projector).Arguments[1];
_groupByMap[projectedElementSubquery] = info;
return new ProjectionExpression(
new SelectExpression(alias, new FieldDeclaration[0], projection.Source, null, null, keyExpression, false, null, null),
fieldProjection.Projector);
}
private Expression BindOrderBy(Type resultType, Expression source, LambdaExpression orderSelector, OrderType orderType)
{
List<OrderExpression> thenBye = _thenBy;
_thenBy = null;
var projection = VisitSequence(source);
_map[orderSelector.Parameters[0]] = projection.Projector;
var orderings = new List<OrderExpression> {new OrderExpression(orderType, Visit(orderSelector.Body))};
if (thenBye != null)
{
for (int i = thenBye.Count - 1; i >= 0; i--)
{
var oe = thenBye[i];
var lambda = (LambdaExpression)oe.Expression;
_map[lambda.Parameters[0]] = projection.Projector;
orderings.Add(new OrderExpression(oe.OrderType, Visit(lambda.Body)));
}
}
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(projection.Projector, alias, projection.Source.Alias);
return new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, null, orderings.AsReadOnly(), null, false, null, null),
fieldProjection.Projector);
}
public GroupByInfo(Alias alias, Expression element)
{
Alias = alias;
Element = element;
}
public CollectionExpression(Alias alias, MongoCollection collection, Type documentType)
: base(MongoExpressionType.Collection, typeof(void), alias)
{
Collection = collection;
DocumentType = documentType;
}
private bool DeleteRelationshipByNameSync(string scenario, string relationshipName, string targetHandlerResourceId)
{
MsnServiceState serviceState = new MsnServiceState(scenario, "DeleteRelationships", false);
StorageService storageService = (StorageService)CreateService(MsnServiceType.Storage, serviceState);
Alias mycidAlias = new Alias();
mycidAlias.Name = Convert.ToString(NSMessageHandler.Owner.CID);
mycidAlias.NameSpace = "MyCidStuff";
// 3. DeleteRelationships. If an error occurs, don't return, continue...
// 3.1 UserTiles -> Photo
DeleteRelationshipsRequestType request = new DeleteRelationshipsRequestType();
request.sourceHandle = new Handle();
request.sourceHandle.RelationshipName = relationshipName; //"/UserTiles";
request.sourceHandle.Alias = mycidAlias;
request.targetHandles = new Handle[] { new Handle() };
request.targetHandles[0].ResourceID = targetHandlerResourceId;
try
{
ChangeCacheKeyAndPreferredHostForSpecifiedMethod(storageService, MsnServiceType.Storage, serviceState, request);
storageService.DeleteRelationships(request);
}
catch (Exception ex)
{
OnServiceOperationFailed(storageService, new ServiceOperationFailedEventArgs("DeleteRelationships", ex));
Trace.WriteLineIf(Settings.TraceSwitch.TraceError, ex.Message, GetType().Name);
return false;
}
return true;
}
private bool CreatePhotoDocumentSync(string scenario, out string documentResourceId, string photoName, byte[] photoData)
{
if (photoData == null)
{
documentResourceId = string.Empty;
return false;
}
MsnServiceState serviceState = new MsnServiceState(scenario, "CreateDocument", false);
StorageService storageService = (StorageService)CreateService(MsnServiceType.Storage, serviceState);
CreateDocumentRequestType createDocRequest = new CreateDocumentRequestType();
createDocRequest.relationshipName = "ProfilePhoto";
Handle parenthandle = new Handle();
parenthandle.RelationshipName = @"/MyProfile/ExpressionProfile";
Alias alias = new Alias();
alias.NameSpace = "MyCidStuff";
alias.Name = Convert.ToString(NSMessageHandler.Owner.CID);
parenthandle.Alias = alias;
createDocRequest.parentHandle = parenthandle;
createDocRequest.document = new Photo();
createDocRequest.document.Name = photoName;
PhotoStream photoStream = new PhotoStream();
photoStream.DataSize = 0;
photoStream.MimeType = @"image/png";
photoStream.DocumentStreamType = "UserTileStatic";
photoStream.Data = photoData;
createDocRequest.document.DocumentStreams = new PhotoStream[] { photoStream };
DisplayImage displayImage = new DisplayImage(NSMessageHandler.Owner.Account.ToLowerInvariant(), new MemoryStream(photoData));
NSMessageHandler.Owner.DisplayImage = displayImage;
try
{
ChangeCacheKeyAndPreferredHostForSpecifiedMethod(storageService, MsnServiceType.Storage, serviceState, createDocRequest);
CreateDocumentResponseType createDocResponse = storageService.CreateDocument(createDocRequest);
documentResourceId = createDocResponse.CreateDocumentResult;
}
catch (Exception ex)
{
OnServiceOperationFailed(storageService, new ServiceOperationFailedEventArgs("CreateDocument", ex));
Trace.WriteLineIf(Settings.TraceSwitch.TraceError, "CreateDocument error: " + ex.Message, GetType().Name);
documentResourceId = string.Empty;
return false;
}
NSMessageHandler.ContactService.Deltas.Profile.Photo.Name = photoName;
NSMessageHandler.ContactService.Deltas.Profile.Photo.DisplayImage = new SerializableMemoryStream();
NSMessageHandler.ContactService.Deltas.Profile.Photo.DisplayImage.Write(photoData, 0, photoData.Length);
NSMessageHandler.ContactService.Deltas.Save(true);
return true;
}
private Expression BindOfType(Expression source, Type selectedType)
{
var projection = VisitSequence(source);
var elementType = projection.Projector.Type;
var parameter = Expression.Parameter(elementType, "p");
var predicate = Expression.Lambda(Expression.TypeIs(parameter, selectedType), parameter);
_map[predicate.Parameters[0]] = projection.Projector;
var where = Visit(predicate.Body);
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(projection.Projector, alias, projection.Source.Alias);
return new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, where),
Expression.Convert(fieldProjection.Projector, selectedType));
}
static Dictionary<Alias, string> FindChildren(Alias currentAlias, List<Alias> list)
{
Dictionary<Alias, string> result = new Dictionary<Alias, string>();
foreach (Alias alias in list)
{
if (alias.Name.BeginsWithAndIsnt(currentAlias.Name))
{
if (alias.MetaData.HasAltName)
{
result.Add(alias, alias.MetaData.AltName);
}
else
{
result.Add(alias, currentAlias.ToOption(alias));
}
}
}
return result;
}
internal static string GetGeneratorName(Trade trade)
{
var gname = trade.GetProperty(TradeImportHelper.GeneratorProp);
if (!string.IsNullOrEmpty(gname)) return gname;
var template = trade.GetProperty(TradeImportHelper.TemplateProp);
if (template != null)
{
var prod = trade.Product;
string aliasSource = null;
if (prod is MTMCurrencySwap || prod is CurrencySwap)
aliasSource = SwapInfo.AliasSourceCcy;
else if (prod is FRA)
aliasSource = SwapInfo.AliasSourceFra;
else if (prod is Swap)
aliasSource = SwapInfo.AliasSourceIrs;
else if (prod is Swaption)
aliasSource = SwaptionInfo.AliasSourceSwpt;
if (aliasSource != null)
{
//if (aliasSource.Equals(SwapInfo.AliasSourceIrs) || aliasSource.Equals(SwaptionInfo.AliasSourceSwpt))
{
// use ot template -> generator mapping
var alias =
new Alias
{
AliasType = "Template",
EntityId = 0,
Source = aliasSource,
SourceReference = template
};
alias = Env.Current.StaticData.GetAlias(alias);
if (alias != null)
{
trade.SetProperty("Generator", alias.Name);
return alias.Name;
}
}
/*
else
{
// use generator <- ot template mapping
var aliases = Env.Current.StaticData.GetAliasesByName(new Alias
{
AliasType = "Template",
EntityId = 0,
Source = aliasSource,
Name = template
});
if (aliases != null && aliases.Count > 0)
{
var alias = aliases[0];
trade.SetProperty("Generator", alias.SourceReference);
return alias.SourceReference;
}
}*/
}
}
return null;
}
/// <summary>
/// Deletes an alias from the data context.
/// </summary>
/// <param name="alias">The alias to be deleted.</param>
public void DeleteAlias(Alias alias)
{
_entityContainer.Aliases.Remove(alias);
_entityContainer.SaveChanges();
}
/// <summary>
/// Adds an alias to the data context.
/// </summary>
/// <param name="alias">The alias to be added.</param>
public void AddAlias(Alias alias)
{
_entityContainer.Aliases.Add(alias);
_entityContainer.SaveChanges();
}
private Expression BindWhere(Type resultType, Expression source, LambdaExpression predicate)
{
var projection = VisitSequence(source);
_map[predicate.Parameters[0]] = projection.Projector;
var where = Visit(predicate.Body);
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(projection.Projector, alias, projection.Source.Alias);
return new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, where),
fieldProjection.Projector);
}
private Expression BindDistinct(Expression source)
{
var projection = VisitSequence(source);
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(projection.Projector, alias, projection.Source.Alias);
return new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, null, null, null, true, null, null),
fieldProjection.Projector);
}
private ProjectionExpression GetCollectionProjection(object value)
{
var collectionAlias = new Alias();
var selectAlias = new Alias();
var collection = (IMongoQueryable)value;
var fields = new List<FieldDeclaration>();
return new ProjectionExpression(
new SelectExpression(selectAlias, fields, new CollectionExpression(collectionAlias, collection.Database, collection.CollectionName, collection.ElementType), null),
Expression.Parameter(collection.ElementType, "document"));
}
private Expression BindFirstOrSingle(Expression source, LambdaExpression predicate, string kind, bool isRoot)
{
var projection = VisitSequence(source);
Expression where = null;
if (predicate != null)
{
_map[predicate.Parameters[0]] = projection.Projector;
where = Visit(predicate.Body);
}
Expression take = kind.StartsWith("First") ? Expression.Constant(1) : null;
if (take == null & kind.StartsWith("Single"))
take = Expression.Constant(2);
if (take != null || where != null)
{
var alias = new Alias();
var fieldProjection = _projector.ProjectFields(projection.Projector, alias, projection.Source.Alias);
projection = new ProjectionExpression(
new SelectExpression(alias, fieldProjection.Fields, projection.Source, where, null, null, false, null, take),
fieldProjection.Projector);
}
if (isRoot)
{
var elementType = projection.Projector.Type;
var p = Expression.Parameter(typeof(IEnumerable<>).MakeGenericType(elementType), "p");
var lambda = Expression.Lambda(Expression.Call(typeof(Enumerable), kind, new[] { elementType }, p), p);
return new ProjectionExpression(projection.Source, projection.Projector, lambda);
}
return projection;
}
protected AliasedExpression(MongoExpressionType nodeType, Type type, Alias alias)
: base(nodeType, type)
{
Alias = alias;
}
private InternalOperationReturnValues GetProfileLiteSync(string scenario, out string profileResourceId, out string expressionProfileResourceId, bool syncToOwner)
{
MsnServiceState serviceState = new MsnServiceState(scenario, "GetProfile", false);
StorageService storageService = (StorageService)CreateService(MsnServiceType.Storage, serviceState);
GetProfileRequestType getprofileRequest = new GetProfileRequestType();
Alias alias = new Alias();
alias.NameSpace = "MyCidStuff";
alias.Name = Convert.ToString(NSMessageHandler.Owner.CID);
Handle pHandle = new Handle();
pHandle.RelationshipName = "MyProfile";
pHandle.Alias = alias;
getprofileRequest.profileHandle = pHandle;
getprofileRequest.profileAttributes = new profileAttributes();
ExpressionProfileAttributesType expAttrib = CreateFullExpressionProfileAttributes();
getprofileRequest.profileAttributes.ExpressionProfileAttributes = expAttrib;
try
{
ChangeCacheKeyAndPreferredHostForSpecifiedMethod(storageService, MsnServiceType.Storage, serviceState, getprofileRequest);
GetProfileResponse response = storageService.GetProfile(getprofileRequest);
#region Process Profile
profileResourceId = response.GetProfileResult.ResourceID;
if (response.GetProfileResult.ExpressionProfile == null)
{
Trace.WriteLineIf(Settings.TraceSwitch.TraceInfo, "Get profile cannot get expression profile of this owner.");
NSMessageHandler.ContactService.Deltas.Profile.HasExpressionProfile = false;
NSMessageHandler.ContactService.Deltas.Profile.DisplayName = NSMessageHandler.Owner.Name;
expressionProfileResourceId = string.Empty;
return InternalOperationReturnValues.NoExpressionProfile;
}
else
{
NSMessageHandler.ContactService.Deltas.Profile.HasExpressionProfile = true;
NSMessageHandler.ContactService.Deltas.Profile.ExpressionProfile.ResourceID = response.GetProfileResult.ExpressionProfile.ResourceID;
NSMessageHandler.ContactService.Deltas.Profile.ExpressionProfile.DateModified = response.GetProfileResult.ExpressionProfile.DateModified;
expressionProfileResourceId = response.GetProfileResult.ExpressionProfile.ResourceID;
}
NSMessageHandler.ContactService.Deltas.Profile.DateModified = response.GetProfileResult.DateModified;
NSMessageHandler.ContactService.Deltas.Profile.ResourceID = response.GetProfileResult.ResourceID;
// Display name
NSMessageHandler.ContactService.Deltas.Profile.DisplayName = response.GetProfileResult.ExpressionProfile.DisplayName;
// Personal status
if (response.GetProfileResult.ExpressionProfile.PersonalStatus != null)
{
NSMessageHandler.ContactService.Deltas.Profile.PersonalMessage = response.GetProfileResult.ExpressionProfile.PersonalStatus;
}
NSMessageHandler.ContactService.Deltas.Save(true);
// Display photo
if (null != response.GetProfileResult.ExpressionProfile.Photo)
{
foreach (DocumentStream docStream in response.GetProfileResult.ExpressionProfile.Photo.DocumentStreams)
{
if (docStream.DocumentStreamType != "UserTileStatic")
{
continue;
}
if (NSMessageHandler.ContactService.Deltas.Profile.Photo.PreAthURL == docStream.PreAuthURL)
{
if (syncToOwner)
{
DisplayImage newDisplayImage = new DisplayImage(NSMessageHandler.Owner.Account.ToLowerInvariant(), NSMessageHandler.ContactService.Deltas.Profile.Photo.DisplayImage);
NSMessageHandler.Owner.DisplayImage = newDisplayImage;
}
}
else
{
string requesturi = docStream.PreAuthURL;
if (requesturi.StartsWith("/"))
{
requesturi = "http://blufiles.storage.msn.com" + requesturi; //I found it http://byfiles.storage.msn.com is also ok
}
// Don't urlencode t= :))
string usertitleURL = requesturi + "?t=" + System.Web.HttpUtility.UrlEncode(NSMessageHandler.MSNTicket.SSOTickets[SSOTicketType.Storage].Ticket.Substring(2));
SyncUserTile(usertitleURL,
syncToOwner,
delegate(object imageStream)
{
SerializableMemoryStream ms = imageStream as SerializableMemoryStream;
NSMessageHandler.ContactService.Deltas.Profile.Photo.Name = response.GetProfileResult.ExpressionProfile.Photo.Name;
NSMessageHandler.ContactService.Deltas.Profile.Photo.DateModified = response.GetProfileResult.ExpressionProfile.Photo.DateModified;
NSMessageHandler.ContactService.Deltas.Profile.Photo.ResourceID = response.GetProfileResult.ExpressionProfile.Photo.ResourceID;
NSMessageHandler.ContactService.Deltas.Profile.Photo.PreAthURL = docStream.PreAuthURL;
if (ms != null)
{
NSMessageHandler.ContactService.Deltas.Profile.Photo.DisplayImage = ms;
}
NSMessageHandler.ContactService.Deltas.Save(true);
},
delegate(object param)
{
Exception ex = param as Exception;
Trace.WriteLineIf(Settings.TraceSwitch.TraceError, "Get DisplayImage error: " + ex.Message, GetType().Name);
if (NSMessageHandler.Owner.UserTileURL != null)
{
SyncUserTile(NSMessageHandler.Owner.UserTileURL.AbsoluteUri, syncToOwner, null, null);
}
});
}
}
}
#endregion
}
catch (Exception ex)
{
OnServiceOperationFailed(storageService, new ServiceOperationFailedEventArgs("GetProfile", ex));
Trace.WriteLineIf(Settings.TraceSwitch.TraceError, "GetProfile error: " + ex.Message, GetType().FullName);
expressionProfileResourceId = string.Empty;
profileResourceId = string.Empty;
if (ex.Message.ToLowerInvariant().Contains("does not exist"))
{
return InternalOperationReturnValues.ProfileNotExist;
}
return InternalOperationReturnValues.RequestFailed;
}
return InternalOperationReturnValues.Succeed;
}
private Expression BindAggregate(Expression source, MethodInfo method, LambdaExpression argument, bool isRoot)
{
var returnType = method.ReturnType;
var aggregateType = GetAggregateType(method.Name);
bool hasPredicateArgument = HasPredicateArgument(aggregateType);
bool distinct = false;
bool argumentWasPredicate = false;
var methodCallExpression = source as MethodCallExpression;
if (methodCallExpression != null && !hasPredicateArgument && argument == null)
{
if (methodCallExpression.Method.Name == "Distinct" && methodCallExpression.Arguments.Count == 1
&& (methodCallExpression.Method.DeclaringType == typeof(Queryable) || methodCallExpression.Method.DeclaringType == typeof(Enumerable)))
{
source = methodCallExpression.Arguments[0];
distinct = true;
}
}
if (argument != null && hasPredicateArgument)
{
source = Expression.Call(typeof(Queryable), "Where", method.GetGenericArguments(), source, argument);
argument = null;
argumentWasPredicate = true;
}
var projection = VisitSequence(source);
Expression argExpression = null;
if (argument != null)
{
_map[argument.Parameters[0]] = projection.Projector;
argExpression = Visit(argument.Body);
}
else if (!hasPredicateArgument)
argExpression = projection.Projector;
var alias = new Alias();
Expression aggregateExpression = new AggregateExpression(returnType, aggregateType, argExpression, distinct);
var selectType = typeof(IEnumerable<>).MakeGenericType(returnType);
string fieldName = "_$agg" + (_aggregateCount++);
var select = new SelectExpression(alias, new[] { new FieldDeclaration(fieldName, aggregateExpression) }, projection.Source, null);
if (isRoot)
{
var parameter = Expression.Parameter(selectType, "p");
var lambda = Expression.Lambda(Expression.Call(typeof(Enumerable), "Single", new[] { returnType }, parameter), parameter);
return new ProjectionExpression(
select,
new FieldExpression(aggregateExpression, alias, fieldName),
lambda);
}
var subquery = new ScalarExpression(returnType, select);
GroupByInfo info;
if (!argumentWasPredicate && _groupByMap.TryGetValue(projection, out info))
{
if (argument != null)
{
_map[argument.Parameters[0]] = info.Element;
argExpression = Visit(argument.Body);
}
else if (!hasPredicateArgument)
argExpression = info.Element;
aggregateExpression = new AggregateExpression(returnType, aggregateType, argExpression, distinct);
if (projection == _currentGroupElement)
return aggregateExpression;
return new AggregateSubqueryExpression(info.Alias, aggregateExpression, subquery);
}
return subquery;
}
/// <summary>
/// Creates an <see cref="Alias"/> object from a using import (such as using in C++ and C# and import in Java).
/// </summary>
/// <param name="aliasStatement">The statement to parse. Should be of type <see cref="AliasElementName"/></param>
/// <param name="context">The context to place the resulting alias in</param>
/// <returns>a new alias object that represents this alias statement</returns>
public Alias ParseAliasElement(XElement aliasStatement, ParserContext context) {
if(null == aliasStatement) throw new ArgumentNullException("aliasStatement");
if(aliasStatement.Name != AliasElementName) throw new ArgumentException(String.Format("must be a {0} statement", AliasElementName), "usingStatement");
var alias = new Alias() {
Location = context.CreateLocation(aliasStatement, true),
ProgrammingLanguage = ParserLanguage,
};
IEnumerable<XElement> namespaceNames = GetNamesFromAlias(aliasStatement);
if(!AliasIsNamespaceImport(aliasStatement)) {
var lastNameElement = namespaceNames.LastOrDefault();
namespaceNames = from name in namespaceNames
where name.IsBefore(lastNameElement)
select name;
alias.ImportedNamedScope = new NamedScopeUse() {
Name = lastNameElement.Value,
Location = context.CreateLocation(lastNameElement),
ProgrammingLanguage = ParserLanguage,
};
}
NamespaceUse current = null;
foreach(var namespaceName in namespaceNames) {
var use = new NamespaceUse() {
Name = namespaceName.Value,
Location = context.CreateLocation(namespaceName),
ProgrammingLanguage = ParserLanguage,
};
if(alias.ImportedNamespace == null) {
alias.ImportedNamespace = use;
current = use;
} else {
current.ChildScopeUse = use;
current = use;
}
}
return alias;
}
