private static MetadataTypeReference ReadGenericArgument(ref StringSpan remaining)
{
var isBracketed = TryRead(ref remaining, '[');
var(typeName, genericArguments, nestedArrayRanks) = ReadTypeParts(ref remaining);
var assemblyName = default(StringSpan);
if (isBracketed)
{
var endingBracket = remaining.IndexOf(']');
if (endingBracket == -1)
{
throw new FormatException("Expected ']'");
}
assemblyName = TryReadAssemblyName(remaining.Slice(0, endingBracket));
remaining = remaining.Slice(endingBracket + 1);
}
return(CreateType(typeName, assemblyName, genericArguments, nestedArrayRanks));
}
ReadTypeParts(ref StringSpan remaining)
{
var firstComma = remaining.IndexOf(',');
var beforeComma = firstComma != -1 ? remaining.Slice(0, firstComma) : remaining;
var firstBracket = beforeComma.IndexOf('[');
if (firstBracket == -1)
{
var outerEndingBracket = beforeComma.IndexOf(']');
if (outerEndingBracket != -1)
{
remaining = remaining.Slice(outerEndingBracket);
return(beforeComma.Slice(0, outerEndingBracket), null, null);
}
remaining = firstComma != -1 ? remaining.Slice(firstComma) : default;
return(beforeComma, null, null);
}
var typeName = remaining.Slice(0, firstBracket);
remaining = remaining.Slice(firstBracket + 1);
var nestedArrayRanks = (List <int>)null;
IReadOnlyList <MetadataTypeReference> genericArguments;
var hasGenericAritySeparator = typeName.LastIndexOf('`') != -1;
if (!hasGenericAritySeparator)
{
genericArguments = null;
nestedArrayRanks = new List <int> {
ReadArrayRank(ref remaining)
};
}
else
{
genericArguments = ReadGenericArgumentList(ref remaining);
if (genericArguments.Count == 0)
{
throw new FormatException("Expected: generic argument");
}
}
for (;;)
{
while (TryRead(ref remaining, ' '))
{
}
if (!TryRead(ref remaining, '['))
{
break;
}
if (nestedArrayRanks == null)
{
nestedArrayRanks = new List <int>();
}
nestedArrayRanks.Add(ReadArrayRank(ref remaining));
}
return(typeName, genericArguments, nestedArrayRanks);
}
