private string GetEnumDisplayString(
Type lmrType,
DkmClrValue value,
ObjectDisplayOptions options,
bool includeTypeName,
DkmInspectionContext inspectionContext
)
{
Debug.Assert(lmrType.IsEnum);
Debug.Assert(value != null);
object underlyingValue = value.HostObjectValue;
// check if HostObjectValue is null, since any of these types might actually be a synthetic value as well.
if (underlyingValue == null)
{
return(_hostValueNotFoundString);
}
string displayString;
var fields = ArrayBuilder <EnumField> .GetInstance();
FillEnumFields(fields, lmrType);
// We will normalize/extend all enum values to ulong to ensure that we are always comparing the full underlying value.
ulong valueForComparison = ConvertEnumUnderlyingTypeToUInt64(
underlyingValue,
Type.GetTypeCode(lmrType)
);
var typeToDisplayOpt = includeTypeName ? lmrType : null;
if (valueForComparison != 0 && IsFlagsEnum(lmrType))
{
displayString = GetNamesForFlagsEnumValue(
fields,
underlyingValue,
valueForComparison,
options,
typeToDisplayOpt
);
}
else
{
displayString = GetNameForEnumValue(
fields,
underlyingValue,
valueForComparison,
options,
typeToDisplayOpt
);
}
fields.Free();
return(displayString ?? FormatPrimitive(value, options, inspectionContext));
}
private static void FillEnumFields(ArrayBuilder <EnumField> fields, Type lmrType)
{
var fieldInfos = lmrType.GetFields();
var enumTypeCode = Type.GetTypeCode(lmrType);
foreach (var info in fieldInfos)
{
if (!info.IsSpecialName) // Skip __value.
{
fields.Add(new EnumField(info.Name, ConvertEnumUnderlyingTypeToUInt64(info.GetRawConstantValue(), enumTypeCode)));
}
}
fields.Sort(EnumField.Comparer);
}
#pragma warning disable RS0010
/// <remarks>
/// The corresponding native code is in EEUserStringBuilder::ErrTryAppendConstantEnum.
/// The corresponding roslyn code is in
/// <see cref="M:Microsoft.CodeAnalysis.SymbolDisplay.AbstractSymbolDisplayVisitor`1.AddEnumConstantValue(Microsoft.CodeAnalysis.INamedTypeSymbol, System.Object, System.Boolean)"/>.
/// NOTE: no curlies for enum values.
/// </remarks>
#pragma warning restore RS0010
private string GetEnumDisplayString(Type lmrType, DkmClrValue value, ObjectDisplayOptions options, bool includeTypeName)
{
Debug.Assert(lmrType.IsEnum);
Debug.Assert(value != null);
object underlyingValue = value.HostObjectValue;
Debug.Assert(underlyingValue != null);
string displayString;
ArrayBuilder <EnumField> fields = ArrayBuilder <EnumField> .GetInstance();
FillEnumFields(fields, lmrType);
// We will normalize/extend all enum values to ulong to ensure that we are always comparing the full underlying value.
ulong valueForComparison = ConvertEnumUnderlyingTypeToUInt64(underlyingValue, Type.GetTypeCode(lmrType));
var typeToDisplayOpt = includeTypeName ? lmrType : null;
if (valueForComparison != 0 && IsFlagsEnum(lmrType))
{
displayString = GetNamesForFlagsEnumValue(fields, underlyingValue, valueForComparison, options, typeToDisplayOpt);
}
else
{
displayString = GetNameForEnumValue(fields, underlyingValue, valueForComparison, options, typeToDisplayOpt);
}
fields.Free();
return(displayString ?? FormatPrimitive(value, options));
}
internal static string GetPredefinedTypeName(this Type type)
{
if (type.IsEnum)
{
return(null);
}
switch (Type.GetTypeCode(type))
{
case TypeCode.Object:
if (type.IsObject())
{
return("object");
}
return(null);
case TypeCode.Boolean:
return("bool");
case TypeCode.Char:
return("char");
case TypeCode.SByte:
return("sbyte");
case TypeCode.Byte:
return("byte");
case TypeCode.Int16:
return("short");
case TypeCode.UInt16:
return("ushort");
case TypeCode.Int32:
return("int");
case TypeCode.UInt32:
return("uint");
case TypeCode.Int64:
return("long");
case TypeCode.UInt64:
return("ulong");
case TypeCode.Single:
return("float");
case TypeCode.Double:
return("double");
case TypeCode.Decimal:
return("decimal");
case TypeCode.String:
return("string");
default:
return(null);
}
}
