/// <summary>
/// Create a PartDefinitionInfo representing partDefinition.
/// </summary>
/// <param name="partDefinition">The part to be analyzed.</param>
public PartDefinitionInfo(ComposablePartDefinition partDefinition)
{
PartDefinition = partDefinition;
ImportDefinitions = Enumerable.Empty <ImportDefinitionInfo>();
_isRejected = new Lazy <bool>(() => ImportDefinitions
.Any(idi => idi.Exception is ImportCardinalityMismatchException));
}
// alwayc called under a lock
private bool RequiresActivation()
{
// If we have any imports then we need activation
// (static imports are not supported)
if (ImportDefinitions.Any())
{
return(true);
}
// If we have any instance exports, then we also
// need activation.
return(ExportDefinitions.Any(definition =>
{
ExportingMember member = GetExportingMemberFromDefinition(definition);
return member.RequiresInstance;
}));
}
/// <summary>
/// Determine whether the part imports a contract.
/// </summary>
/// <param name="contract">Name of the contract to check for.</param>
/// <returns>True if the part imports the contract.</returns>
public bool ImportsContract(string contract)
{
return(ImportDefinitions.Any(id => id.ImportDefinition.ContractName == contract));
}