internal static GenericTypeName?TryParse(string text)
{
if (text.IndexOf('[') is var index &&
index > 0)
{
var metadataName = text.Substring(0, index);
if (TryParseArity(metadataName, out var arity) &&
GenericTypeArgument.TryParseBracketedList(text, index, arity, out var typeArguments) &&
arity == typeArguments.Length)
{
return(new GenericTypeName(metadataName, typeArguments));
}
}
return(null);
}
public static bool TryParse(string text, out GenericTypeName genericTypeName)
{
if (text.IndexOf('[') is var index &&
index > 0)
{
var metadataName = text.Substring(0, index);
if (TryParseArity(metadataName, out var arity) &&
GenericTypeArgument.TryParseBracketedList(text, index, arity, out var typeArguments) &&
arity == typeArguments.Length)
{
genericTypeName = new GenericTypeName(metadataName, typeArguments);
return(true);
}
}
genericTypeName = default(GenericTypeName);
return(false);
}
private static bool TryParse(string text, ref int pos, out GenericTypeArgument genericTypeArgument)
{
while (pos < text.Length &&
(text[pos] == ' ' || text[pos] == ','))
{
pos++;
}
if (text[pos] == '[' &&
TryFindBracketedList(text, pos, out var bracketed))
{
var temp = 1;
if (TryParse(bracketed, ref temp, out genericTypeArgument))
{
pos += bracketed.Length;
while (pos < text.Length &&
text[pos] == ' ')
{
pos++;
}
return(true);
}
}
else if (TryFindMetadataName(text, ref pos, out var metadataName, out var arity))
{
if (arity > 0 &&
TryFindBracketedList(text, pos, out var argsString) &&
TryParseBracketedList(argsString, 0, arity, out var args))
{
genericTypeArgument = new GenericTypeArgument(metadataName, args);
pos += argsString.Length;
return(true);
}
genericTypeArgument = new GenericTypeArgument(metadataName, null);
return(true);
}
pos = int.MaxValue;
genericTypeArgument = default(GenericTypeArgument);
return(false);
}