CompleterResult GetImplementations()
{
Func <Func <string, string>, string, Func <CompleterError>, Either <CompleterError, string> > getImplementation = (getImpl, interfaceName, check) => {
var interfaceType = model.Compilation.GetTypeByMetadataName(interfaceName);
if (type.AllInterfaces.Contains(interfaceType))
{
var error = check.With(x => x());
if (error != null)
{
return(error);
}
return(string.Empty);
}
return(getImpl(type.Name).AddTabs(1));
};
const string IDataErrorInfoName = "System.ComponentModel.IDataErrorInfo";
Func <string, string, string> getIDataErrorInfoPropertyImplementation = (implementation, name) =>
type.Properties().Any(m => (m.Name == IDataErrorInfoName + "." + name) || (m.DeclaredAccessibility == Microsoft.CodeAnalysis.Accessibility.Public && m.Name == name))
? null
: implementation;
var iDataErrorInfoType = model.Compilation.GetTypeByMetadataName(IDataErrorInfoName);
var dataErrorInfoImplementation = type.AllInterfaces.Contains(iDataErrorInfoType)
? (
getIDataErrorInfoPropertyImplementation(DataErrorInfoErrorImplementation, "Error")
+
getIDataErrorInfoPropertyImplementation(DataErrorInfoIndexerImplementation, "this[]")
) : null;
Func <CompleterError> checkRaisePropertyChangedMethod = () => {
Func <CompleterError> error = () => CompleterError.CreateForTypeName(type, Messages.POCO_RaisePropertyChangedMethodNotFound.Format(type.Name));
var raisePropertyChangedMethods = methods.GetValueOrDefault("RaisePropertyChanged", ImmutableArray <IMethodSymbol> .Empty);
if (raisePropertyChangedMethods.IsEmpty)
{
return(error());
}
var raisePropertyChangedMethod = raisePropertyChangedMethods.FirstOrDefault(method => {
if (method.Parameters.Length != 1)
{
return(false);
}
var parameter = method.Parameters.Single();
return(parameter.RefKind == RefKind.None && parameter.Type.SpecialType == SpecialType.System_String);
});
if (raisePropertyChangedMethod == null)
{
return(error());
}
return(null);
};
return(new[] {
getImplementation(INPCImplemetation, "System.ComponentModel.INotifyPropertyChanged", checkRaisePropertyChangedMethod),
getImplementation(ParentViewModelImplementation, "DevExpress.Mvvm.ISupportParentViewModel", null),
getImplementation(SupportServicesImplementation, "DevExpress.Mvvm.ISupportServices", null),
dataErrorInfoImplementation,
}
.AggregateEither(errors => errors.ToImmutableArray(), values => values.ConcatStringsWithNewLines()));
}
IEnumerable <CompleterError> GetClassErrors()
{
if (type.IsSealed)
{
yield return(CompleterError.CreateForTypeName(type, Messages.POCO_SealedClass.Format(type.Name)));
}
var iPOCOViewModeType = model.Compilation.GetTypeByMetadataName("DevExpress.Mvvm.POCO.IPOCOViewModel");
if (type.AllInterfaces.Contains(iPOCOViewModeType))
{
yield return(CompleterError.CreateForTypeName(type, Messages.POCO_TypeImplementsIPOCOViewModel.Format(type.Name)));
}
}
