/// <summary>
/// Tries to return all definitions bound to the <paramref name="scopeName"/>.
/// </summary>
/// <param name="scopeName">Scope name to find definitions for.</param>
/// <param name="definitions">Enumerations for scoped definitions for <paramref name="scopeName"/>.</param>
/// <returns><c>true</c> if such definitions exits (at least one); <c>false</c> otherwise.</returns>
internal bool TryGetChild(string scopeName, out IEnumerable <DependencyDefinition> definitions)
{
bool isSucess = false;
definitions = Enumerable.Empty <DependencyDefinition>();
// 1) Find registrations from parent.
if (parentCollection != null)
{
IEnumerable <DependencyDefinition> parentResult;
if (parentCollection.TryGetChild(String.Empty, out parentResult))
{
definitions = Enumerable.Concat(definitions, parentResult);
isSucess = true;
}
if (parentCollection.TryGetChild(scopeName, out parentResult))
{
definitions = Enumerable.Concat(definitions, parentResult);
isSucess = true;
}
}
// 2) Find registrations from current.
List <DependencyDefinition> result;
if (definitionByScopeName.TryGetValue(String.Empty, out result))
{
definitions = Enumerable.Concat(definitions, result);
isSucess = true;
}
if (definitionByScopeName.TryGetValue(scopeName, out result))
{
definitions = Enumerable.Concat(definitions, result);
isSucess = true;
}
if (isSucess)
{
return(true);
}
definitions = null;
return(false);
}
public DependencyDefinitionCollection(string scopeName, InstanceStorage instances, DependencyDefinitionCollection parentCollection)
: this(scopeName, instances)
{
Ensure.NotNull(parentCollection, "parentCollection");
this.parentCollection = parentCollection;
IEnumerable <DependencyDefinition> definitions;
if (parentCollection.TryGetChild(scopeName, out definitions))
{
foreach (DependencyDefinition definition in definitions)
{
Add(definition.RequiredType, definition.Lifetime, definition.Target);
}
}
}