private static void ConfigureConstructorAttributes(ConstructorInfo constructorInfo, ref List <Tuple <object, List <Attribute> > > configuredMembers, Action <ParameterInfo, ImportConventionBuilder> configureConstuctorImports)
{
configuredMembers ??= new List <Tuple <object, List <Attribute> > >();
// Make its attribute
configuredMembers.Add(Tuple.Create((object)constructorInfo, s_importingConstructorList));
//Okay we have the constructor now we can configure the ImportBuilders
ParameterInfo[] parameterInfos = constructorInfo.GetParameters();
foreach (ParameterInfo pi in parameterInfos)
{
bool isConfigured = pi.GetCustomAttributes <ImportAttribute>(false).FirstOrDefault() != null || pi.GetCustomAttributes <ImportManyAttribute>(false).FirstOrDefault() != null;
if (isConfigured)
{
CompositionTrace.Registration_ParameterImportConventionOverridden(pi, constructorInfo);
}
else
{
var importBuilder = new ImportConventionBuilder();
// Let the developer alter them if they specified to do so
configureConstuctorImports?.Invoke(pi, importBuilder);
// Generate the attributes
List <Attribute> attributes = null;
importBuilder.BuildAttributes(pi.ParameterType, ref attributes);
configuredMembers.Add(Tuple.Create((object)pi, attributes));
}
}
}
public ImportParameter( ParameterInfo parameter, ImportConventionBuilder conventionBuilder )
{
Arg.NotNull( parameter, nameof( parameter ) );
Arg.NotNull( conventionBuilder, nameof( conventionBuilder ) );
this.parameter = parameter;
this.conventionBuilder = conventionBuilder;
}
public void ConfigureConstructorImports(ParameterInfo parameterInfo, ImportConventionBuilder importBuilder)
{
if (_importBuilders != null)
{
if (_importBuilders.TryGetValue(parameterInfo, out Action <ImportConventionBuilder> parameterImportBuilder))
{
parameterImportBuilder(importBuilder);
}
}
return;
}
internal void BuildPropertyAttributes(Type type, ref List <Tuple <object, List <Attribute> > > configuredMembers)
{
if (this._propertyImports.Any() || this._propertyExports.Any())
{
foreach (var pi in type.GetRuntimeProperties())
{
List <Attribute> attributes = null;
int importsBuilt = 0;
bool checkedIfConfigured = false;
bool isConfigured = false;
PropertyInfo underlyingPi = null;
// Run through the import specifications see if any match
foreach (var importSpecification in this._propertyImports)
{
if (underlyingPi == null)
{
underlyingPi = pi.DeclaringType.GetRuntimeProperty(pi.Name);
}
if (importSpecification.Item1 != null && importSpecification.Item1(underlyingPi))
{
var importBuilder = new ImportConventionBuilder();
if (importSpecification.Item2 != null)
{
importSpecification.Item2(pi, importBuilder);
}
if (!checkedIfConfigured)
{
isConfigured = pi.GetFirstAttribute <ImportAttribute>() != null || pi.GetFirstAttribute <ImportManyAttribute>() != null;
checkedIfConfigured = true;
}
if (isConfigured)
{
CompositionTrace.Registration_MemberImportConventionOverridden(type, pi);
break;
}
else
{
importBuilder.BuildAttributes(pi.PropertyType, ref attributes);
++importsBuilt;
}
}
if (importsBuilt > 1)
{
CompositionTrace.Registration_MemberImportConventionMatchedTwice(type, pi);
}
}
checkedIfConfigured = false;
isConfigured = false;
// Run through the export specifications see if any match
foreach (var exportSpecification in this._propertyExports)
{
if (underlyingPi == null)
{
underlyingPi = pi.DeclaringType.GetRuntimeProperty(pi.Name);
}
if (exportSpecification.Item1 != null && exportSpecification.Item1(underlyingPi))
{
var exportBuilder = new ExportConventionBuilder();
if (exportSpecification.Item3 != null)
{
exportBuilder.AsContractType(exportSpecification.Item3);
}
if (exportSpecification.Item2 != null)
{
exportSpecification.Item2(pi, exportBuilder);
}
if (!checkedIfConfigured)
{
isConfigured = pi.GetFirstAttribute <ExportAttribute>() != null || MemberHasExportMetadata(pi);
checkedIfConfigured = true;
}
if (isConfigured)
{
CompositionTrace.Registration_MemberExportConventionOverridden(type, pi);
break;
}
else
{
exportBuilder.BuildAttributes(pi.PropertyType, ref attributes);
}
}
}
if (attributes != null)
{
if (configuredMembers == null)
{
configuredMembers = new List <Tuple <object, List <Attribute> > >();
}
configuredMembers.Add(Tuple.Create((object)pi, attributes));
}
}
}
return;
}
public void ConfigureImport(PropertyInfo propertyInfo, ImportConventionBuilder importBuilder)
{
_configureImport?.Invoke(importBuilder);
}
/// <summary>
/// Initializes a new instance of the <see cref="MefImportConventionsBuilder"/> class.
/// </summary>
/// <param name="innerBuilder">
/// The inner builder.
/// </param>
internal MefImportConventionsBuilder(ImportConventionBuilder innerBuilder)
{
this.innerBuilder = innerBuilder;
}
