static void CreateSiblingReference <T>(T basePropDef, ref T discoveredBaseMemberDef, INameService service) where T : class, IMemberDef
{
if (discoveredBaseMemberDef is null)
{
discoveredBaseMemberDef = basePropDef;
}
else
{
var references = service.GetReferences(discoveredBaseMemberDef)
.OfType <MemberSiblingReference>()
.ToArray();
if (references.Length > 0)
{
discoveredBaseMemberDef = (T)references[0].OldestSiblingDef;
foreach (var siblingRef in references.Skip(1))
{
// Redirect all the siblings to the new oldest reference
RedirectSiblingReferences(siblingRef.OldestSiblingDef, discoveredBaseMemberDef, service);
}
}
// Check if the discovered base type is the current type. If so, nothing needs to be done.
if (ReferenceEquals(basePropDef, discoveredBaseMemberDef))
{
return;
}
service.AddReference(basePropDef, new MemberSiblingReference(basePropDef, discoveredBaseMemberDef));
UpdateOldestSiblingReference(discoveredBaseMemberDef, basePropDef, service);
}
}
static void UpdateOldestSiblingReference(IMemberDef oldestSiblingMemberDef, IMemberDef basePropDef, INameService service)
{
var reverseReference = service.GetReferences(oldestSiblingMemberDef).OfType <MemberOldestSiblingReference>()
.SingleOrDefault();
if (reverseReference is null)
{
service.AddReference(oldestSiblingMemberDef, new MemberOldestSiblingReference(oldestSiblingMemberDef, basePropDef));
PropagateRenamingRestrictions(service, oldestSiblingMemberDef, basePropDef);
}
else if (!reverseReference.OtherSiblings.Contains(basePropDef))
{
reverseReference.OtherSiblings.Add(basePropDef);
PropagateRenamingRestrictions(service, reverseReference.OtherSiblings);
}
}
static void RedirectSiblingReferences(IMemberDef oldMemberDef, IMemberDef newMemberDef, INameService service)
{
if (ReferenceEquals(oldMemberDef, newMemberDef))
{
return;
}
var referencesToUpdate = service.GetReferences(oldMemberDef)
.OfType <MemberOldestSiblingReference>()
.SelectMany(r => r.OtherSiblings)
.SelectMany(service.GetReferences)
.OfType <MemberSiblingReference>()
.Where(r => ReferenceEquals(r.OldestSiblingDef, oldMemberDef));
foreach (var reference in referencesToUpdate)
{
reference.OldestSiblingDef = newMemberDef;
UpdateOldestSiblingReference(newMemberDef, reference.ThisMemberDef, service);
}
UpdateOldestSiblingReference(newMemberDef, oldMemberDef, service);
}
static IEnumerable <IDnlibDef> GetTargetsWithDelay(IList <IDnlibDef> definitions, ConfuserContext context, INameService service)
{
var delayedItems = new List <IDnlibDef>();
var currentList = definitions;
var lastCount = -1;
while (currentList.Any())
{
foreach (var def in currentList)
{
if (service.GetReferences(def).Any(r => r.DelayRenaming(service, def)))
{
delayedItems.Add(def);
}
else
{
yield return(def);
}
}
if (delayedItems.Count == lastCount)
{
var errorBuilder = new StringBuilder();
errorBuilder.AppendLine("Failed to rename all targeted members, because the references are blocking each other.");
errorBuilder.AppendLine("Remaining definitions: ");
foreach (var def in delayedItems)
{
errorBuilder.Append("• ").AppendDescription(def, service).AppendLine();
}
context.Logger.Warn(errorBuilder.ToString().Trim());
yield break;
}
lastCount = delayedItems.Count;
currentList = delayedItems;
delayedItems = new List <IDnlibDef>();
}
}
public void Analyze(INameService nameService, ITraceService traceService, IReadOnlyList <ModuleDef> moduleDefs, ILogger logger, MethodDef method)
{
if (!method.HasBody)
{
return;
}
MethodTrace methodTrace = null;
MethodTrace GetMethodTrace()
{
if (methodTrace == null)
{
methodTrace = traceService.Trace(method);
}
return(methodTrace);
}
foreach (var instr in method.Body.Instructions)
{
if (instr.OpCode.Code == Code.Call && instr.Operand is IMethodDefOrRef calledMethod)
{
if (calledMethod.DeclaringType.FullName == "System.Type")
{
Func <TypeDef, IEnumerable <IMemberDef> > getMember = null;
if (calledMethod.Name == nameof(Type.GetMethod))
{
getMember = t => t.Methods;
}
else if (calledMethod.Name == nameof(Type.GetField))
{
getMember = t => t.Fields;
}
else if (calledMethod.Name == nameof(Type.GetProperty))
{
getMember = t => t.Properties;
}
else if (calledMethod.Name == nameof(Type.GetEvent))
{
getMember = t => t.Events;
}
else if (calledMethod.Name == nameof(Type.GetMember))
{
getMember = t => Enumerable.Empty <IMemberDef>().Concat(t.Methods).Concat(t.Fields).Concat(t.Properties).Concat(t.Events);
}
if (getMember != null)
{
var trace = GetMethodTrace();
var arguments = trace.TraceArguments(instr);
if (arguments == null)
{
logger.WarnFormat(Resources.ReflectionAnalyzer_Analyze_TracingArgumentsFailed, calledMethod.FullName, method.FullName);
}
else if (arguments.Length >= 2)
{
var types = GetReferencedTypes(method.Body.Instructions[arguments[0]], method, trace);
var names = GetReferencedNames(method.Body.Instructions[arguments[1]]);
if (!types.Any())
{
types = moduleDefs.SelectMany(m => m.GetTypes()).ToArray();
}
foreach (var possibleMember in types.SelectMany(GetTypeAndBaseTypes).SelectMany(getMember).Where(m => names.Contains(m.Name)))
{
nameService.SetCanRename(possibleMember, false);
if (!(possibleMember is IMethod) && !(possibleMember is PropertyDef) && !(possibleMember is EventDef))
{
continue;
}
foreach (var reference in nameService.GetReferences(possibleMember).OfType <MemberOverrideReference>())
{
nameService.SetCanRename(reference.BaseMemberDef, false);
}
}
}
}
}
}
}
}
