private string FormatInternal(Type type, Func <TypeSpec, TypeSpec> rewriter = null)
{
string runtimeType = null;
foreach (var converter in _converters)
{
if (converter.TryFormat(type, out var value))
{
runtimeType = value;
break;
}
}
if (string.IsNullOrWhiteSpace(runtimeType))
{
runtimeType = _defaultFormatter.Format(type);
}
var runtimeTypeSpec = RuntimeTypeNameParser.Parse(runtimeType);
var displayTypeSpec = RuntimeTypeNameRewriter.Rewrite(runtimeTypeSpec, _convertToDisplayName);
if (rewriter is object)
{
displayTypeSpec = rewriter(displayTypeSpec);
}
var formatted = displayTypeSpec.Format();
return(formatted);
}
/// <summary>
/// Returns the type arguments for the provided constructed generic type string.
/// </summary>
public static Type[] GetArguments(this TypeConverter formatter, string constructed)
{
var str = constructed;
var index = str.IndexOf(StartArgument);
if (index <= 0)
{
return(Array.Empty <Type>());
}
var safeString = "safer" + str.Substring(str.IndexOf(GenericTypeIndicator));
var parsed = RuntimeTypeNameParser.Parse(safeString);
if (!(parsed is ConstructedGenericTypeSpec spec))
{
throw new InvalidOperationException($"Unable to correctly parse grain type {str}");
}
var result = new Type[spec.Arguments.Length];
for (var i = 0; i < result.Length; i++)
{
var arg = spec.Arguments[i];
var formattedArg = arg.Format();
result[i] = formatter.Parse(formattedArg);
if (result[i] is null)
{
throw new InvalidOperationException($"Unable to parse argument \"{formattedArg}\" as a type for grain type \"{str}\"");
}
}
return(result);
}
/// <summary>
/// Returns the constructed form of the provided generic type.
/// </summary>
public static string GetConstructed(this TypeConverter formatter, string unconstructed, params Type[] typeArguments)
{
var typeString = unconstructed;
var indicatorIndex = typeString.IndexOf(GenericTypeIndicator);
var argumentsIndex = typeString.IndexOf(StartArgument, indicatorIndex);
if (argumentsIndex >= 0)
{
throw new InvalidOperationException("Cannot construct an already-constructed type");
}
var arityString = typeString.Substring(indicatorIndex + 1);
var arity = int.Parse(arityString);
if (typeArguments.Length != arity)
{
throw new InvalidOperationException($"Insufficient number of type arguments, {typeArguments.Length}, provided while constructing type \"{unconstructed}\" of arity {arity}");
}
var typeSpecs = new TypeSpec[typeArguments.Length];
for (var i = 0; i < typeArguments.Length; i++)
{
typeSpecs[i] = RuntimeTypeNameParser.Parse(formatter.Format(typeArguments[i]));
}
var constructed = new ConstructedGenericTypeSpec(new NamedTypeSpec(null, typeString, typeArguments.Length), typeSpecs).Format();
return(constructed);
}
/// <summary>
/// Returns the constructed form of the provided generic type.
/// </summary>
public static IdSpan GetConstructed(this TypeConverter formatter, IdSpan unconstructed, params Type[] typeArguments)
{
var typeString = unconstructed.AsSpan();
var indicatorIndex = typeString.IndexOf((byte)GenericTypeIndicator);
var arityString = typeString.Slice(indicatorIndex + 1);
if (indicatorIndex < 0 || arityString.IndexOf((byte)StartArgument) >= 0)
{
throw new InvalidOperationException("Cannot construct an already-constructed type");
}
if (!Utf8Parser.TryParse(arityString, out int arity, out var len) || len < arityString.Length || typeArguments.Length != arity)
{
throw new InvalidOperationException($"Insufficient number of type arguments, {typeArguments.Length}, provided while constructing type \"{unconstructed}\"");
}
var typeSpecs = new TypeSpec[typeArguments.Length];
for (var i = 0; i < typeArguments.Length; i++)
{
typeSpecs[i] = RuntimeTypeNameParser.Parse(formatter.Format(typeArguments[i]));
}
var constructed = new ConstructedGenericTypeSpec(new NamedTypeSpec(null, unconstructed.ToStringUtf8(), typeArguments.Length), typeSpecs).Format();
return(IdSpan.Create(constructed));
}
public void ParsedTypeNamesAreIdenticalToFormattedNames()
{
foreach (var type in types)
{
var formatted = RuntimeTypeNameFormatter.Format(type);
var parsed = RuntimeTypeNameParser.Parse(formatted);
this.output.WriteLine($"Type.FullName: {type.FullName}");
this.output.WriteLine($"Formatted : {formatted}");
this.output.WriteLine($"Parsed : {parsed}");
Assert.Equal(formatted, parsed.Format());
var reparsed = RuntimeTypeNameParser.Parse(parsed.Format());
this.output.WriteLine($"Reparsed : {reparsed}");
Assert.Equal(formatted, reparsed.Format());
}
}
private Type ParseInternal(string formatted)
{
var parsed = RuntimeTypeNameParser.Parse(formatted);
var runtimeTypeSpec = RuntimeTypeNameRewriter.Rewrite(parsed, _convertFromDisplayName);
var runtimeType = runtimeTypeSpec.Format();
foreach (var converter in _converters)
{
if (converter.TryParse(runtimeType, out var result))
{
return(result);
}
}
return(_defaultFormatter.Parse(runtimeType));
}
