private static void Analyze(SymbolAnalysisContext context, INamedTypeSymbol enumType)
{
IFieldSymbol[] fields = enumType
.GetMembers()
.Where(f => f.IsField())
.Cast <IFieldSymbol>()
.ToArray();
switch (enumType.EnumUnderlyingType.SpecialType)
{
case SpecialType.System_SByte:
{
sbyte[] values = GetValues <sbyte>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (sbyte value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
case SpecialType.System_Byte:
{
byte[] values = GetValues <byte>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (byte value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
case SpecialType.System_Int16:
{
short[] values = GetValues <short>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (short value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
case SpecialType.System_UInt16:
{
ushort[] values = GetValues <ushort>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (ushort value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
case SpecialType.System_Int32:
{
int[] values = GetValues <int>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (int value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
case SpecialType.System_UInt32:
{
uint[] values = GetValues <uint>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (uint value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
case SpecialType.System_Int64:
{
long[] values = GetValues <long>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (long value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
case SpecialType.System_UInt64:
{
ulong[] values = GetValues <ulong>(fields);
for (int i = 0; i < values.Length; i++)
{
if (values[i] != 0 &&
FlagsUtility.IsComposite(values[i]))
{
foreach (ulong value in FlagsUtility.Decompose(values[i]))
{
if (Array.IndexOf(values, value) == -1)
{
ReportDiagnostic(context, fields[i], value.ToString());
}
}
}
}
break;
}
default:
{
Debug.Fail(enumType.EnumUnderlyingType.SpecialType.ToString());
break;
}
}
}
