private static bool IsScalarType(ITypeSymbol typeSymbol)
{
return(KnownSymbols.IsSystemString(typeSymbol) ||
!typeSymbol.AllInterfaces.Select(i => i.ConstructedFrom).Any(KnownSymbols.IsSystemCollectionsGenericIEnumerable));
}
private static void CheckCommandOptionProperties(
SymbolAnalysisContext context,
IReadOnlyList <IPropertySymbol> properties)
{
var options = properties
.Select(p =>
{
var attribute = p
.GetAttributes()
.First(a => KnownSymbols.IsCommandOptionAttribute(a.AttributeClass));
var name = attribute
.ConstructorArguments
.Where(a => KnownSymbols.IsSystemString(a.Type))
.Select(a => a.Value)
.FirstOrDefault() as string;
var shortName = attribute
.ConstructorArguments
.Where(a => KnownSymbols.IsSystemChar(a.Type))
.Select(a => a.Value)
.FirstOrDefault() as char?;
return(new
{
Property = p,
Name = name,
ShortName = shortName
});
})
.ToArray();
// No name
var noNameOptions = options
.Where(o => string.IsNullOrWhiteSpace(o.Name) && o.ShortName == null)
.ToArray();
foreach (var option in noNameOptions)
{
context.ReportDiagnostic(
Diagnostic.Create(DiagnosticDescriptors.Typin0041, option.Property.Locations.First()));
}
// Too short name
var invalidNameLengthOptions = options
.Where(o => !string.IsNullOrWhiteSpace(o.Name) && o.Name.Length <= 1)
.ToArray();
foreach (var option in invalidNameLengthOptions)
{
context.ReportDiagnostic(
Diagnostic.Create(DiagnosticDescriptors.Typin0042, option.Property.Locations.First()));
}
// Duplicate name
var duplicateNameOptions = options
.Where(p => !string.IsNullOrWhiteSpace(p.Name))
.GroupBy(p => p.Name, StringComparer.OrdinalIgnoreCase)
.Where(g => g.Count() > 1)
.SelectMany(g => g.AsEnumerable())
.ToArray();
foreach (var option in duplicateNameOptions)
{
context.ReportDiagnostic(
Diagnostic.Create(DiagnosticDescriptors.Typin0043, option.Property.Locations.First()));
}
// Duplicate name
var duplicateShortNameOptions = options
.Where(p => p.ShortName != null)
.GroupBy(p => p.ShortName)
.Where(g => g.Count() > 1)
.SelectMany(g => g.AsEnumerable())
.ToArray();
foreach (var option in duplicateShortNameOptions)
{
context.ReportDiagnostic(
Diagnostic.Create(DiagnosticDescriptors.Typin0044, option.Property.Locations.First()));
}
}
