/// <summary>
/// Parses the reflection name starting at pos.
/// If local is true, only parses local type names, not assembly qualified type names.
/// </summary>
static ITypeReference ParseReflectionName(string reflectionTypeName, ref int pos, bool local = false)
{
if (pos == reflectionTypeName.Length)
{
throw new ReflectionNameParseException(pos, "Unexpected end");
}
ITypeReference reference;
if (reflectionTypeName[pos] == '`')
{
// type parameter reference
pos++;
if (pos == reflectionTypeName.Length)
{
throw new ReflectionNameParseException(pos, "Unexpected end");
}
if (reflectionTypeName[pos] == '`')
{
// method type parameter reference
pos++;
int index = ReadTypeParameterCount(reflectionTypeName, ref pos);
reference = TypeParameterReference.Create(SymbolKind.Method, index);
}
else
{
// class type parameter reference
int index = ReadTypeParameterCount(reflectionTypeName, ref pos);
reference = TypeParameterReference.Create(SymbolKind.TypeDefinition, index);
}
}
else
{
// not a type parameter reference: read the actual type name
string typeName = ReadTypeName(reflectionTypeName, ref pos, out int tpc);
string assemblyName = local ? null : SkipAheadAndReadAssemblyName(reflectionTypeName, pos);
reference = CreateGetClassTypeReference(assemblyName, typeName, tpc);
}
// read type suffixes
while (pos < reflectionTypeName.Length)
{
switch (reflectionTypeName[pos++])
{
case '+':
int tpc;
string typeName = ReadTypeName(reflectionTypeName, ref pos, out tpc);
reference = new NestedTypeReference(reference, typeName, tpc);
break;
case '*':
reference = new PointerTypeReference(reference);
break;
case '&':
reference = new ByReferenceTypeReference(reference);
break;
case '[':
// this might be an array or a generic type
if (pos == reflectionTypeName.Length)
{
throw new ReflectionNameParseException(pos, "Unexpected end");
}
if (reflectionTypeName[pos] != ']' && reflectionTypeName[pos] != ',')
{
// it's a generic type
List <ITypeReference> typeArguments = new List <ITypeReference>();
bool first = true;
while (first || pos < reflectionTypeName.Length && reflectionTypeName[pos] == ',')
{
if (first)
{
first = false;
}
else
{
pos++; // skip ','
}
if (pos < reflectionTypeName.Length && reflectionTypeName[pos] == '[')
{
// non-local type names are enclosed in another set of []
pos++;
typeArguments.Add(ParseReflectionName(reflectionTypeName, ref pos));
if (pos < reflectionTypeName.Length && reflectionTypeName[pos] == ']')
{
pos++;
}
else
{
throw new ReflectionNameParseException(pos, "Expected end of type argument");
}
}
else
{
// local type names occur directly in the outer []
typeArguments.Add(ParseReflectionName(reflectionTypeName, ref pos, local: true));
}
}
if (pos < reflectionTypeName.Length && reflectionTypeName[pos] == ']')
{
pos++;
reference = new ParameterizedTypeReference(reference, typeArguments);
}
else
{
throw new ReflectionNameParseException(pos, "Expected end of generic type");
}
}
else
{
// it's an array
int dimensions = 1;
while (pos < reflectionTypeName.Length && reflectionTypeName[pos] == ',')
{
dimensions++;
pos++;
}
if (pos < reflectionTypeName.Length && reflectionTypeName[pos] == ']')
{
pos++; // end of array
reference = new ArrayTypeReference(reference, dimensions);
}
else
{
throw new ReflectionNameParseException(pos, "Invalid array modifier");
}
}
break;
case ',' when !local:
// assembly qualified name, ignore everything up to the end/next ']'
while (pos < reflectionTypeName.Length && reflectionTypeName[pos] != ']')
{
pos++;
}
break;
default:
pos--; // reset pos to the character we couldn't read
if (reflectionTypeName[pos] == ']' || reflectionTypeName[pos] == ',')
{
return(reference); // return from a nested generic
}
else
{
throw new ReflectionNameParseException(pos, "Unexpected character: '" + reflectionTypeName[pos] + "'");
}
}
}
return(reference);
}
bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
{
PointerTypeReference o = other as PointerTypeReference;
return(o != null && this.elementType == o.elementType);
}
