public virtual ISymbolReference ToReference()
{
if (owner == null)
{
return(TypeParameterReference.Create(ownerType, index));
}
return(new OwnedTypeParameterReference(owner.ToReference(), index));
}
/// <summary>
/// Creates a type parameter reference.
/// For common type parameter references, this method may return a shared instance.
/// </summary>
public static TypeParameterReference Create(SymbolKind ownerType, int index)
{
if (index >= 0 && index < 8 && (ownerType == SymbolKind.TypeDefinition || ownerType == SymbolKind.Method))
{
TypeParameterReference[] arr = (ownerType == SymbolKind.TypeDefinition) ? classTypeParameterReferences : methodTypeParameterReferences;
TypeParameterReference result = LazyInit.VolatileRead(ref arr[index]);
if (result == null)
{
result = LazyInit.GetOrSet(ref arr[index], new TypeParameterReference(ownerType, index));
}
return(result);
}
else
{
return(new TypeParameterReference(ownerType, index));
}
}
public ITypeReference ToTypeReference()
{
return(TypeParameterReference.Create(this.OwnerType, this.Index));
}
public override ITypeReference ToTypeReference()
{
return(TypeParameterReference.Create(ownerType, index));
}
bool ISupportsInterning.EqualsForInterning(ISupportsInterning other)
{
TypeParameterReference r = other as TypeParameterReference;
return(r != null && index == r.index && ownerType == r.ownerType);
}
static ITypeReference ParseReflectionName(string reflectionTypeName, ref int pos)
{
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 = new TypeParameterReference(EntityType.Method, index);
} else {
// class type parameter reference
int index = ReadTypeParameterCount(reflectionTypeName, ref pos);
reference = new TypeParameterReference(EntityType.TypeDefinition, index);
}
} else {
// not a type parameter reference: read the actual type name
int tpc;
string typeName = ReadTypeName(reflectionTypeName, ref pos, out tpc);
string assemblyName = 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] == '[') {
// it's a generic type
List<ITypeReference> typeArguments = new List<ITypeReference>();
pos++;
typeArguments.Add(ParseReflectionName(reflectionTypeName, ref pos));
if (pos < reflectionTypeName.Length && reflectionTypeName[pos] == ']')
pos++;
else
throw new ReflectionNameParseException(pos, "Expected end of type argument");
while (pos < reflectionTypeName.Length && reflectionTypeName[pos] == ',') {
pos++;
if (pos < reflectionTypeName.Length && reflectionTypeName[pos] == '[')
pos++;
else
throw new ReflectionNameParseException(pos, "Expected another type argument");
typeArguments.Add(ParseReflectionName(reflectionTypeName, ref pos));
if (pos < reflectionTypeName.Length && reflectionTypeName[pos] == ']')
pos++;
else
throw new ReflectionNameParseException(pos, "Expected end of type argument");
}
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 ',':
// 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] == ']')
return reference; // return from a nested generic
else
throw new ReflectionNameParseException(pos, "Unexpected character: '" + reflectionTypeName[pos] + "'");
}
}
return reference;
}
static ITypeReference ParseTypeName(string typeName, ref int pos)
{
string reflectionTypeName = typeName;
if (pos == typeName.Length)
throw new ReflectionNameParseException(pos, "Unexpected end");
ITypeReference result;
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 = ReflectionHelper.ReadTypeParameterCount(reflectionTypeName, ref pos);
result = new TypeParameterReference(EntityType.Method, index);
} else {
// class type parameter reference
int index = ReflectionHelper.ReadTypeParameterCount(reflectionTypeName, ref pos);
result = new TypeParameterReference(EntityType.TypeDefinition, index);
}
} else {
// not a type parameter reference: read the actual type name
List<ITypeReference> typeArguments = new List<ITypeReference>();
int typeParameterCount;
string typeNameWithoutSuffix = ReadTypeName(typeName, ref pos, true, out typeParameterCount, typeArguments);
result = new GetPotentiallyNestedClassTypeReference(typeNameWithoutSuffix, typeParameterCount);
while (pos < typeName.Length && typeName[pos] == '.') {
pos++;
string nestedTypeName = ReadTypeName(typeName, ref pos, false, out typeParameterCount, typeArguments);
result = new NestedTypeReference(result, nestedTypeName, typeParameterCount);
}
if (typeArguments.Count > 0) {
result = new ParameterizedTypeReference(result, typeArguments);
}
}
while (pos < typeName.Length) {
switch (typeName[pos]) {
case '[':
int dimensions = 1;
do {
pos++;
if (pos == typeName.Length)
throw new ReflectionNameParseException(pos, "Unexpected end");
if (typeName[pos] == ',')
dimensions++;
} while (typeName[pos] != ']');
result = new ArrayTypeReference(result, dimensions);
break;
case '*':
result = new PointerTypeReference(result);
break;
case '@':
result = new ByReferenceTypeReference(result);
break;
default:
return result;
}
pos++;
}
return result;
}
