// Array and pointer types might cause deep recursions; visit them iteratively
// rather than recursively.
public override void Visit(IArrayTypeReference arrayTypeReference)
{
// We don't visit the current array type; it has already been visited.
// We go straight to the element type and visit it.
ITypeReference current = arrayTypeReference.GetElementType(Context);
while (true)
{
bool mustVisitChildren = VisitTypeReference(current);
if (!mustVisitChildren)
{
return;
}
else if (current is IArrayTypeReference)
{
// The element type is itself an array type, and we must visit *its* element type.
// Iterate rather than recursing.
current = ((IArrayTypeReference)current).GetElementType(Context);
continue;
}
else
{
// The element type is not an array type and we must visit its children.
// Dispatch the type in order to visit its children.
DispatchAsReference(current);
return;
}
}
}
/// <summary>
/// Strip off *, &, and [].
/// </summary>
private static ITypeReference UnwrapTypeReference(ITypeReference typeReference, EmitContext context)
{
while (true)
{
IArrayTypeReference arrType = typeReference as IArrayTypeReference;
if (arrType != null)
{
typeReference = arrType.GetElementType(context);
continue;
}
IPointerTypeReference pointer = typeReference as IPointerTypeReference;
if (pointer != null)
{
typeReference = pointer.GetTargetType(context);
continue;
}
IManagedPointerTypeReference reference = typeReference as IManagedPointerTypeReference;
if (reference != null)
{
typeReference = reference.GetTargetType(context);
continue;
}
return(typeReference);
}
}
private static void VisitTypeReference(ITypeReference typeReference, EmitContext context)
{
Debug.Assert(typeReference != null);
IArrayTypeReference arrayType = typeReference as IArrayTypeReference;
if (arrayType != null)
{
VisitTypeReference(arrayType.GetElementType(context), context);
return;
}
IPointerTypeReference pointerType = typeReference as IPointerTypeReference;
if (pointerType != null)
{
VisitTypeReference(pointerType.GetTargetType(context), context);
return;
}
//IManagedPointerTypeReference managedPointerType = typeReference as IManagedPointerTypeReference;
//if (managedPointerType != null)
//{
// VisitTypeReference(managedPointerType.GetTargetType(this.context));
// return;
//}
IModifiedTypeReference modifiedType = typeReference as IModifiedTypeReference;
if (modifiedType != null)
{
foreach (var custModifier in modifiedType.CustomModifiers)
{
VisitTypeReference(custModifier.GetModifier(context), context);
}
VisitTypeReference(modifiedType.UnmodifiedType, context);
return;
}
// Visit containing type
INestedTypeReference nestedType = typeReference.AsNestedTypeReference;
if (nestedType != null)
{
VisitTypeReference(nestedType.GetContainingType(context), context);
}
// Visit generic arguments
IGenericTypeInstanceReference genericInstance = typeReference.AsGenericTypeInstanceReference;
if (genericInstance != null)
{
foreach (var arg in genericInstance.GetGenericArguments(context))
{
VisitTypeReference(arg, context);
}
}
}
private static void AppendAssemblyQualifierIfNecessary(StringBuilder sb, ITypeReference typeReference, out bool isAssemQualified, EmitContext context)
{
INestedTypeReference nestedType = typeReference.AsNestedTypeReference;
if (nestedType != null)
{
AppendAssemblyQualifierIfNecessary(sb, nestedType.GetContainingType(context), out isAssemQualified, context);
return;
}
IGenericTypeInstanceReference genInst = typeReference.AsGenericTypeInstanceReference;
if (genInst != null)
{
AppendAssemblyQualifierIfNecessary(sb, genInst.GetGenericType(context), out isAssemQualified, context);
return;
}
IArrayTypeReference arrType = typeReference as IArrayTypeReference;
if (arrType != null)
{
AppendAssemblyQualifierIfNecessary(sb, arrType.GetElementType(context), out isAssemQualified, context);
return;
}
IPointerTypeReference pointer = typeReference as IPointerTypeReference;
if (pointer != null)
{
AppendAssemblyQualifierIfNecessary(sb, pointer.GetTargetType(context), out isAssemQualified, context);
return;
}
isAssemQualified = false;
IAssemblyReference referencedAssembly = null;
INamespaceTypeReference namespaceType = typeReference.AsNamespaceTypeReference;
if (namespaceType != null)
{
referencedAssembly = namespaceType.GetUnit(context) as IAssemblyReference;
}
if (referencedAssembly != null)
{
var containingAssembly = context.Module.GetContainingAssembly(context);
if (containingAssembly == null || !ReferenceEquals(referencedAssembly, containingAssembly))
{
sb.Append(", ");
sb.Append(MetadataWriter.StrongName(referencedAssembly));
isAssemQualified = true;
}
}
}
public virtual void Visit(IArrayTypeReference arrayTypeReference)
{
this.Visit(arrayTypeReference.GetElementType(Context));
}
// Array and pointer types might cause deep recursions; visit them iteratively
// rather than recursively.
public override void Visit(IArrayTypeReference arrayTypeReference)
{
// We don't visit the current array type; it has already been visited.
// We go straight to the element type and visit it.
ITypeReference current = arrayTypeReference.GetElementType(Context);
while (true)
{
bool mustVisitChildren = VisitTypeReference(current);
if (!mustVisitChildren)
{
return;
}
else if (current is IArrayTypeReference)
{
// The element type is itself an array type, and we must visit *its* element type.
// Iterate rather than recursing.
current = ((IArrayTypeReference)current).GetElementType(Context);
continue;
}
else
{
// The element type is not an array type and we must visit its children.
// Dispatch the type in order to visit its children.
DispatchAsReference(current);
return;
}
}
}
internal static string GetSerializedTypeName(this ITypeReference typeReference, EmitContext context, ref bool isAssemblyQualified)
{
var pooled = PooledStringBuilder.GetInstance();
StringBuilder sb = pooled.Builder;
IArrayTypeReference arrType = typeReference as IArrayTypeReference;
if (arrType != null)
{
typeReference = arrType.GetElementType(context);
bool isAssemQual = false;
AppendSerializedTypeName(sb, typeReference, ref isAssemQual, context);
if (arrType.IsSZArray)
{
sb.Append("[]");
}
else
{
sb.Append('[');
if (arrType.Rank == 1)
{
sb.Append('*');
}
sb.Append(',', (int)arrType.Rank - 1);
sb.Append(']');
}
goto done;
}
IPointerTypeReference pointer = typeReference as IPointerTypeReference;
if (pointer != null)
{
typeReference = pointer.GetTargetType(context);
bool isAssemQual = false;
AppendSerializedTypeName(sb, typeReference, ref isAssemQual, context);
sb.Append('*');
goto done;
}
INamespaceTypeReference namespaceType = typeReference.AsNamespaceTypeReference;
if (namespaceType != null)
{
var name = namespaceType.NamespaceName;
if (name.Length != 0)
{
sb.Append(name);
sb.Append('.');
}
sb.Append(GetMangledAndEscapedName(namespaceType));
goto done;
}
if (typeReference.IsTypeSpecification())
{
ITypeReference uninstantiatedTypeReference = typeReference.GetUninstantiatedGenericType(context);
ArrayBuilder <ITypeReference> consolidatedTypeArguments = ArrayBuilder <ITypeReference> .GetInstance();
typeReference.GetConsolidatedTypeArguments(consolidatedTypeArguments, context);
bool uninstantiatedTypeIsAssemblyQualified = false;
sb.Append(GetSerializedTypeName(uninstantiatedTypeReference, context, ref uninstantiatedTypeIsAssemblyQualified));
sb.Append('[');
bool first = true;
foreach (ITypeReference argument in consolidatedTypeArguments)
{
if (first)
{
first = false;
}
else
{
sb.Append(',');
}
bool isAssemQual = true;
AppendSerializedTypeName(sb, argument, ref isAssemQual, context);
}
consolidatedTypeArguments.Free();
sb.Append(']');
goto done;
}
INestedTypeReference nestedType = typeReference.AsNestedTypeReference;
if (nestedType != null)
{
bool nestedTypeIsAssemblyQualified = false;
sb.Append(GetSerializedTypeName(nestedType.GetContainingType(context), context, ref nestedTypeIsAssemblyQualified));
sb.Append('+');
sb.Append(GetMangledAndEscapedName(nestedType));
goto done;
}
// TODO: error
done:
if (isAssemblyQualified)
{
AppendAssemblyQualifierIfNecessary(sb, UnwrapTypeReference(typeReference, context), out isAssemblyQualified, context);
}
return(pooled.ToStringAndFree());
}
public virtual void Visit(IArrayTypeReference arrayTypeReference)
{
this.Visit(arrayTypeReference.GetElementType(Context));
}
public override ITypeReference GetType(EmitContext context) => _arrayType.GetElementType(context);
