Пример #1
0
        // Builds the friendly string for an enum value
        private string InternalGetEnumString(CorObjectValue ov, MetadataType type)
        {
            Debug.Assert(type != null); // Enums should always have a type

            IList <KeyValuePair <string, ulong> > values = type.EnumValues;

            // Get the underlying value
            ulong value = Convert.ToUInt64(ov.CastToGenericValue().UnsafeGetValueAsType(type.EnumUnderlyingType), CultureInfo.InvariantCulture);

            // Find a reasonable value to display
            StringBuilder result         = new StringBuilder();
            ulong         remainingValue = value;
            bool          firstTime      = true;

            for (int i = values.Count - 1; i >= 0; i--)
            {
                if ((values[i].Value == value) ||
                    (type.ReallyIsFlagsEnum && (values[i].Value != 0) && ((values[i].Value & value) == values[i].Value)))
                {
                    remainingValue &= ~(values[i].Value);    // Remove the flags from the total needed for flags enums

                    if (!firstTime)
                    {
                        if (type.ReallyIsFlagsEnum)
                        {
                            result.Insert(0, ", ");
                        }
                        else
                        {
                            result.Insert(0, " / ");
                        }
                    }
                    result.Insert(0, values[i].Key);
                    firstTime = false;
                }
            }
            if (remainingValue != 0)
            {
                if (firstTime)
                {
                    // No matches whatsoever
                    result.Insert(0, remainingValue);
                }
                else
                {
                    // Flags enum with leftover bits
                    result.AppendFormat(" (Unnamed bits: {0})", remainingValue);
                }
            }

            return(result.ToString());
        }
Пример #2
0
        static CorValue Unbox(EvaluationContext ctx, CorBoxValue boxVal)
        {
            CorObjectValue bval  = boxVal.GetObject();
            Type           ptype = Type.GetType(ctx.Adapter.GetTypeName(ctx, bval.ExactType));

            if (ptype != null && ptype.IsPrimitive)
            {
                ptype = bval.ExactType.GetTypeInfo(((CorEvaluationContext)ctx).Session);
                foreach (FieldInfo field in ptype.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
                {
                    if (field.Name == "m_value")
                    {
                        CorValue val = bval.GetFieldValue(bval.ExactType.Class, field.MetadataToken);
                        val = GetRealObject(ctx, val);
                        return(val);
                    }
                }
            }

            return(GetRealObject(ctx, bval));
        }
Пример #3
0
        public override object TargetObjectToObject(EvaluationContext ctx, object objr)
        {
            CorValue obj = GetRealObject(ctx, objr);

            if ((obj is CorReferenceValue) && ((CorReferenceValue)obj).IsNull)
            {
                return(new EvaluationResult("(null)"));
            }

            CorStringValue stringVal = obj as CorStringValue;

            if (stringVal != null)
            {
                return(stringVal.String);
            }

            CorArrayValue arr = obj as CorArrayValue;

            if (arr != null)
            {
                return(base.TargetObjectToObject(ctx, objr));
            }

            CorEvaluationContext cctx = (CorEvaluationContext)ctx;
            CorObjectValue       co   = obj as CorObjectValue;

            if (co != null)
            {
                return(base.TargetObjectToObject(ctx, objr));
            }

            CorGenericValue genVal = obj as CorGenericValue;

            if (genVal != null)
            {
                return(genVal.GetValue());
            }

            return(base.TargetObjectToObject(ctx, objr));
        }
Пример #4
0
        string GetThreadName(CorThread thread)
        {
            // From http://social.msdn.microsoft.com/Forums/en/netfxtoolsdev/thread/461326fe-88bd-4a6b-82a9-1a66b8e65116
            try
            {
                CorReferenceValue refVal = thread.ThreadVariable.CastToReferenceValue();
                if (refVal.IsNull)
                {
                    return(string.Empty);
                }

                CorObjectValue val = refVal.Dereference().CastToObjectValue();
                if (val != null)
                {
                    Type classType = val.ExactType.GetTypeInfo(this);
                    // Loop through all private instance fields in the thread class
                    foreach (MetadataFieldInfo fi in classType.GetFields(BindingFlags.NonPublic | BindingFlags.Instance))
                    {
                        if (fi.Name == "m_Name")
                        {
                            CorReferenceValue fieldValue = val.GetFieldValue(val.Class, fi.MetadataToken).CastToReferenceValue();

                            if (fieldValue.IsNull)
                            {
                                return(string.Empty);
                            }
                            else
                            {
                                return(fieldValue.Dereference().CastToStringValue().String);
                            }
                        }
                    }
                }
            } catch (Exception) {
                // Ignore
            }

            return(string.Empty);
        }
Пример #5
0
        public override object TryCast(EvaluationContext ctx, object val, object type)
        {
            CorType  ctype     = (CorType)GetValueType(ctx, val);
            CorValue obj       = GetRealObject(ctx, val);
            string   tname     = GetTypeName(ctx, type);
            string   ctypeName = GetValueTypeName(ctx, val);

            if (tname == "System.Object")
            {
                return(val);
            }

            if (tname == ctypeName)
            {
                return(val);
            }

            if (obj is CorStringValue)
            {
                return(ctypeName == tname ? val : null);
            }

            if (obj is CorArrayValue)
            {
                return((ctypeName == tname || ctypeName == "System.Array") ? val : null);
            }

            if (obj is CorObjectValue)
            {
                CorObjectValue co = (CorObjectValue)obj;
                if (IsEnum(ctx, co.ExactType))
                {
                    ValueReference rval = GetMember(ctx, null, val, "value__");
                    return(TryCast(ctx, rval.Value, type));
                }

                while (ctype != null)
                {
                    if (GetTypeName(ctx, ctype) == tname)
                    {
                        return(val);
                    }
                    ctype = ctype.Base;
                }
                return(null);
            }

            CorGenericValue genVal = obj as CorGenericValue;

            if (genVal != null)
            {
                Type t = Type.GetType(tname);
                if (t != null && t.IsPrimitive && t != typeof(string))
                {
                    object pval = genVal.GetValue();
                    try {
                        pval = System.Convert.ChangeType(pval, t);
                    }
                    catch {
                        return(null);
                    }
                    return(CreateValue(ctx, pval));
                }
                else if (IsEnum(ctx, (CorType)type))
                {
                    return(CreateEnum(ctx, (CorType)type, val));
                }
            }
            return(null);
        }
Пример #6
0
        public override string CallToString(EvaluationContext ctx, object objr)
        {
            CorValue obj = GetRealObject(ctx, objr);

            if ((obj is CorReferenceValue) && ((CorReferenceValue)obj).IsNull)
            {
                return(string.Empty);
            }

            CorStringValue stringVal = obj as CorStringValue;

            if (stringVal != null)
            {
                return(stringVal.String);
            }

            CorArrayValue arr = obj as CorArrayValue;

            if (arr != null)
            {
                StringBuilder tn = new StringBuilder(GetDisplayTypeName(ctx, arr.ExactType.FirstTypeParameter));
                tn.Append("[");
                int[] dims = arr.GetDimensions();
                for (int n = 0; n < dims.Length; n++)
                {
                    if (n > 0)
                    {
                        tn.Append(',');
                    }
                    tn.Append(dims[n]);
                }
                tn.Append("]");
                return(tn.ToString());
            }

            CorEvaluationContext cctx = (CorEvaluationContext)ctx;
            CorObjectValue       co   = obj as CorObjectValue;

            if (co != null)
            {
                if (IsEnum(ctx, co.ExactType))
                {
                    MetadataType   rt             = co.ExactType.GetTypeInfo(cctx.Session) as MetadataType;
                    bool           isFlags        = rt != null && rt.ReallyIsFlagsEnum;
                    string         enumName       = GetTypeName(ctx, co.ExactType);
                    ValueReference val            = GetMember(ctx, null, objr, "value__");
                    ulong          nval           = (ulong)System.Convert.ChangeType(val.ObjectValue, typeof(ulong));
                    ulong          remainingFlags = nval;
                    string         flags          = null;
                    foreach (ValueReference evals in GetMembers(ctx, co.ExactType, null, BindingFlags.Public | BindingFlags.Static))
                    {
                        ulong nev = (ulong)System.Convert.ChangeType(evals.ObjectValue, typeof(ulong));
                        if (nval == nev)
                        {
                            return(evals.Name);
                        }
                        if (isFlags && nev != 0 && (nval & nev) == nev)
                        {
                            if (flags == null)
                            {
                                flags = enumName + "." + evals.Name;
                            }
                            else
                            {
                                flags += " | " + enumName + "." + evals.Name;
                            }
                            remainingFlags &= ~nev;
                        }
                    }
                    if (isFlags)
                    {
                        if (remainingFlags == nval)
                        {
                            return(nval.ToString());
                        }
                        if (remainingFlags != 0)
                        {
                            flags += " | " + remainingFlags;
                        }
                        return(flags);
                    }
                    else
                    {
                        return(nval.ToString());
                    }
                }

                CorType targetType = (CorType)GetValueType(ctx, objr);

                MethodInfo met = OverloadResolve(cctx, "ToString", targetType, new CorType[0], BindingFlags.Public | BindingFlags.Instance, false);
                if (met != null && met.DeclaringType.FullName != "System.Object")
                {
                    object[]       args = new object[0];
                    object         ores = RuntimeInvoke(ctx, targetType, objr, "ToString", args, args);
                    CorStringValue res  = GetRealObject(ctx, ores) as CorStringValue;
                    if (res != null)
                    {
                        return(res.String);
                    }
                }

                return(GetDisplayTypeName(ctx, targetType));
            }

            CorGenericValue genVal = obj as CorGenericValue;

            if (genVal != null)
            {
                return(genVal.GetValue().ToString());
            }

            return(base.CallToString(ctx, obj));
        }
Пример #7
0
        // Helper to get all the fields, including static fields and base types.
        private MDbgValue[] InternalGetFields()
        {
            List <MDbgValue> al = new List <MDbgValue>();

            //dereference && (unbox);
            CorValue value = Dereference(CorValue, null);

            if (value == null)
            {
                throw new MDbgValueException("null value");
            }
            Unbox(ref value);
            CorObjectValue ov = value.CastToObjectValue();

            CorType cType = ov.ExactType;

            CorFrame cFrame = null;

            if (Process.Threads.HaveActive)
            {
                // we need a current frame to display thread local static values
                if (Process.Threads.Active.HaveCurrentFrame)
                {
                    MDbgFrame temp = Process.Threads.Active.CurrentFrame;
                    while (temp != null && !temp.IsManaged)
                    {
                        temp = temp.NextUp;
                    }
                    if (temp != null)
                    {
                        cFrame = temp.CorFrame;
                    }
                }
            }

            MDbgModule classModule;

            // initialization
            CorClass corClass = ov.Class;

            classModule = Process.Modules.Lookup(corClass.Module);

            // iteration through class hierarchy
            while (true)
            {
                Type classType = classModule.Importer.GetType(corClass.Token);
                foreach (MetadataFieldInfo fi in classType.GetFields())
                {
                    CorValue fieldValue = null;
                    try
                    {
                        if (fi.IsLiteral)
                        {
                            fieldValue = null;
                            // for now we just hide the constant fields.
                            continue;
                        }
                        else if (fi.IsStatic)
                        {
                            if (cFrame == null)
                            {
                                // Without a frame, we won't be able to find static values.  So
                                // just skip this guy
                                continue;
                            }

                            fieldValue = cType.GetStaticFieldValue(fi.MetadataToken, cFrame);
                        }
                        else
                        {
                            // we are asuming normal field value
                            fieldValue = ov.GetFieldValue(corClass, fi.MetadataToken);
                        }
                    }
                    catch (COMException)
                    {
                        // we won't report any problems.
                    }
                    al.Add(new MDbgValue(Process, fi.Name, fieldValue));
                }
                cType = cType.Base;
                if (cType == null)
                {
                    break;
                }
                corClass    = cType.Class;
                classModule = Process.Modules.Lookup(corClass.Module);
            }

            return(al.ToArray());
        }
Пример #8
0
        private string PrintObject(int indentLevel, CorObjectValue ov, int expandDepth, bool canDoFunceval)
        {
            Debug.Assert(expandDepth >= 0);

            bool fNeedToResumeThreads = true;

            // Print generics-aware type.
            string name = InternalUtil.PrintCorType(this.m_process, ov.ExactType);

            StringBuilder txt = new StringBuilder();

            txt.Append(name);

            if (expandDepth > 0)
            {
                // we gather the field info of the class before we do
                // funceval since funceval requires running the debugger process
                // and this in turn can cause GC and invalidate our references.
                StringBuilder expandedDescription = new StringBuilder();
                if (IsComplexType)
                {
                    foreach (MDbgValue v in GetFields())
                    {
                        expandedDescription.Append("\n").Append(IndentedString(indentLevel + 1, v.Name)).
                        Append("=").Append(IndentedBlock(indentLevel + 2,
                                                         v.GetStringValue(expandDepth - 1, false)));
                    }
                }

                // if the value we're printing is a nullable type that has no value (is null), we can't do a func eval
                // to get its value, since it will be boxed as a null pointer. We already have the information we need, so
                // we'll just take care of it now. Note that ToString() for null-valued nullable types just prints the
                // empty string.

                // bool hasValue = (bool)(GetField("hasValue").CorValue.CastToGenericValue().GetValue());

                if (IsNullableType(ov.ExactType) && !(bool)(GetField("hasValue").CorValue.CastToGenericValue().GetValue()))
                {
                    txt.Append(" < >");
                }

                else if (ov.IsValueClass && canDoFunceval)
                // we could display even values for real Objects, but we will just show
                // "description" for valueclasses.
                {
                    CorClass          cls      = ov.ExactType.Class;
                    CorMetadataImport importer = m_process.Modules.Lookup(cls.Module).Importer;
                    MetadataType      mdType   = importer.GetType(cls.Token) as MetadataType;

                    if (mdType.ReallyIsEnum)
                    {
                        txt.AppendFormat(" <{0}>", InternalGetEnumString(ov, mdType));
                    }
                    else if (m_process.IsRunning)
                    {
                        txt.Append(" <N/A during run>");
                    }
                    else
                    {
                        MDbgThread activeThread = m_process.Threads.Active;

                        CorValue     thisValue;
                        CorHeapValue hv = ov.CastToHeapValue();
                        if (hv != null)
                        {
                            // we need to pass reference value.
                            CorHandleValue handle = hv.CreateHandle(CorDebugHandleType.HANDLE_WEAK_TRACK_RESURRECTION);
                            thisValue = handle;
                        }
                        else
                        {
                            thisValue = ov;
                        }

                        try
                        {
                            CorEval eval = m_process.Threads.Active.CorThread.CreateEval();
                            m_process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_SUSPEND,
                                                                         activeThread.CorThread);

                            MDbgFunction toStringFunc = m_process.ResolveFunctionName(null, "System.Object", "ToString",
                                                                                      thisValue.ExactType.Class.Module.Assembly.AppDomain)[0];

                            Debug.Assert(toStringFunc != null); // we should be always able to resolve ToString function.

                            eval.CallFunction(toStringFunc.CorFunction, new CorValue[] { thisValue });
                            m_process.Go();
                            do
                            {
                                m_process.StopEvent.WaitOne();
                                if (m_process.StopReason is EvalCompleteStopReason)
                                {
                                    CorValue cv = eval.Result;
                                    Debug.Assert(cv != null);
                                    MDbgValue mv      = new MDbgValue(m_process, cv);
                                    string    valName = mv.GetStringValue(0);

                                    // just purely for esthetical reasons we 'discard' "
                                    if (valName.StartsWith("\"") && valName.EndsWith("\""))
                                    {
                                        valName = valName.Substring(1, valName.Length - 2);
                                    }

                                    txt.Append(" <").Append(valName).Append(">");
                                    break;
                                }
                                if ((m_process.StopReason is ProcessExitedStopReason) ||
                                    (m_process.StopReason is EvalExceptionStopReason))
                                {
                                    txt.Append(" <N/A cannot evaluate>");
                                    break;
                                }
                                // hitting bp or whatever should not matter -- we need to ignore it
                                m_process.Go();
                            }while (true);
                        }
                        catch (COMException e)
                        {
                            // Ignore cannot copy a VC class error - Can't copy a VC with object refs in it.
                            if (e.ErrorCode != (int)HResult.CORDBG_E_OBJECT_IS_NOT_COPYABLE_VALUE_CLASS)
                            {
                                throw;
                            }
                        }
                        catch (System.NotImplementedException)
                        {
                            fNeedToResumeThreads = false;
                        }
                        finally
                        {
                            if (fNeedToResumeThreads)
                            {
                                // we need to resume all the threads that we have suspended no matter what.
                                m_process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_RUN,
                                                                             activeThread.CorThread);
                            }
                        }
                    }
                }
                txt.Append(expandedDescription.ToString());
            }
            return(txt.ToString());
        }
Пример #9
0
        private string InternalGetValue(int indentLevel, int expandDepth, bool canDoFunceval)
        {
            Debug.Assert(expandDepth >= 0);

            CorValue value = this.CorValue;

            if (value == null)
            {
                return("<N/A>");
            }

            // Record the memory addresses if displaying them is enabled
            string        prefix        = String.Empty;
            StringBuilder ptrStrBuilder = null;

            if (m_process.m_engine.Options.ShowAddresses)
            {
                ptrStrBuilder = new StringBuilder();
            }

            try
            {
                value = Dereference(value, ptrStrBuilder);
            }
            catch (COMException ce)
            {
                if (ce.ErrorCode == (int)HResult.CORDBG_E_BAD_REFERENCE_VALUE)
                {
                    return(MakePrefixFromPtrStringBuilder(ptrStrBuilder) + "<invalid reference value>");
                }
                throw;
            }

            prefix = MakePrefixFromPtrStringBuilder(ptrStrBuilder);

            if (value == null)
            {
                return(prefix + "<null>");
            }

            Unbox(ref value);

            switch (value.Type)
            {
            case CorElementType.ELEMENT_TYPE_BOOLEAN:
            case CorElementType.ELEMENT_TYPE_I1:
            case CorElementType.ELEMENT_TYPE_U1:
            case CorElementType.ELEMENT_TYPE_I2:
            case CorElementType.ELEMENT_TYPE_U2:
            case CorElementType.ELEMENT_TYPE_I4:
            case CorElementType.ELEMENT_TYPE_U4:
            case CorElementType.ELEMENT_TYPE_I:
            case CorElementType.ELEMENT_TYPE_U:
            case CorElementType.ELEMENT_TYPE_I8:
            case CorElementType.ELEMENT_TYPE_U8:
            case CorElementType.ELEMENT_TYPE_R4:
            case CorElementType.ELEMENT_TYPE_R8:
            case CorElementType.ELEMENT_TYPE_CHAR:
            {
                object v = value.CastToGenericValue().GetValue();
                string result;

                IFormattable vFormattable = v as IFormattable;
                if (vFormattable != null)
                {
                    result = vFormattable.ToString(null, System.Globalization.CultureInfo.CurrentUICulture);
                }
                else
                {
                    result = v.ToString();
                }

                // let's put quotes around char values
                if (value.Type == CorElementType.ELEMENT_TYPE_CHAR)
                {
                    result = "'" + result + "'";
                }

                return(prefix + result);
            }

            case CorElementType.ELEMENT_TYPE_CLASS:
            case CorElementType.ELEMENT_TYPE_VALUETYPE:
                CorObjectValue ov = value.CastToObjectValue();
                return(prefix + PrintObject(indentLevel, ov, expandDepth, canDoFunceval));

            case CorElementType.ELEMENT_TYPE_STRING:
                CorStringValue sv = value.CastToStringValue();
                return(prefix + '"' + sv.String + '"');

            case CorElementType.ELEMENT_TYPE_SZARRAY:
            case CorElementType.ELEMENT_TYPE_ARRAY:
                CorArrayValue av = value.CastToArrayValue();
                return(prefix + PrintArray(indentLevel, av, expandDepth, canDoFunceval));

            case CorElementType.ELEMENT_TYPE_PTR:
                return(prefix + "<non-null pointer>");

            case CorElementType.ELEMENT_TYPE_FNPTR:
                return(prefix + "0x" + value.CastToReferenceValue().Value.ToString("X"));

            case CorElementType.ELEMENT_TYPE_BYREF:
            case CorElementType.ELEMENT_TYPE_TYPEDBYREF:
            case CorElementType.ELEMENT_TYPE_OBJECT:
            default:
                return(prefix + "<printing value of type: " + value.Type + " not implemented>");
            }
        }
Пример #10
0
        private MDbgValue[] InternalGetFields()
        {
            ArrayList al = new ArrayList();

            //dereference && (unbox);
            CorValue value = Dereference(CorValue);

            if (value == null)
            {
                throw new MDbgValueException("null value");
            }
            Unbox(ref value);
            CorObjectValue ov = value.CastToObjectValue();

            CorType cType = ov.ExactType;

            CorFrame cFrame = null;

            if (Process.Threads.HaveActive)
            {
                // we need a current frame to display thread local static values
                if (Process.Threads.Active.HaveCurrentFrame)
                {
                    cFrame = Process.Threads.Active.CurrentFrame.CorFrame;
                }
            }


            MDbgModule classModule;

            // initialization
            CorClass corClass = ov.Class;

            classModule = Process.Modules.Lookup(corClass.Module);

            // iteration through class hierarchy
            do
            {
                Type classType;
                //int parentToken;

                classType = classModule.Importer.GetType(corClass.Token);
                //classModule.Importer.GetTypeNameFromDef(classToken,out parentToken);

                foreach (MetadataFieldInfo fi in classType.GetFields())
                {
                    CorValue fieldValue = null;
                    try
                    {
                        if (fi.IsLiteral)
                        {
                            fieldValue = null;
                            // for now we just hide the constant fields.
                            continue;
                        }
                        else if (fi.IsStatic)
                        {
                            fieldValue = cType.GetStaticFieldValue(fi.MetadataToken, cFrame);
                        }
                        else                         // we are asuming normal field value
                                                     // GetFieldValueForTYpe Supersedes GetFieldValue
                                                     // Will replace when all issues are resolved.
                                                     //fieldValue = ov.GetFieldValueForType(cType, (uint)fi.Token);
                        {
                            fieldValue = ov.GetFieldValue(corClass, fi.MetadataToken);
                        }
                    }
                    catch (COMException)
                    {
                        // we won't report any problems.
                    }
                    al.Add(new MDbgValue(Process, fi.Name, fieldValue));
                }
                cType = cType.Base;
                if (cType == null)
                {
                    break;
                }
                corClass    = cType.Class;
                classModule = Process.Modules.Lookup(corClass.Module);
            }while (true);

            return((MDbgValue[])al.ToArray(typeof(MDbgValue)));
        }
Пример #11
0
        private string InternalGetValue(int indentLevel, int expandDepth, bool canDoFunceval, string variableName, Dictionary <string, int> variablesToLog)
        {
            Debug.Assert(expandDepth >= 0);

            CorValue value = this.CorValue;

            if (value == null)
            {
                return("<N/A>");
            }

            // Record the memory addresses if displaying them is enabled
            string        prefix        = String.Empty;
            StringBuilder ptrStrBuilder = null;

            if (m_process.m_engine.Options.ShowAddresses)
            {
                ptrStrBuilder = new StringBuilder();
            }

            try
            {
                value = Dereference(value, ptrStrBuilder);
            }
            catch (COMException ce)
            {
                if (ce.ErrorCode == (int)HResult.CORDBG_E_BAD_REFERENCE_VALUE)
                {
                    return(MakePrefixFromPtrStringBuilder(ptrStrBuilder) + "<invalid reference value>");
                }
                throw;
            }

            prefix = MakePrefixFromPtrStringBuilder(ptrStrBuilder);

            if (value == null)
            {
                return(prefix + "<null>");
            }

            Unbox(ref value);

            switch (value.Type)
            {
            case CorElementType.ELEMENT_TYPE_BOOLEAN:
            case CorElementType.ELEMENT_TYPE_I1:
            case CorElementType.ELEMENT_TYPE_U1:
            case CorElementType.ELEMENT_TYPE_I2:
            case CorElementType.ELEMENT_TYPE_U2:
            case CorElementType.ELEMENT_TYPE_I4:
            case CorElementType.ELEMENT_TYPE_U4:
            case CorElementType.ELEMENT_TYPE_I:
            case CorElementType.ELEMENT_TYPE_U:
            case CorElementType.ELEMENT_TYPE_I8:
            case CorElementType.ELEMENT_TYPE_U8:
            case CorElementType.ELEMENT_TYPE_R4:
            case CorElementType.ELEMENT_TYPE_R8:
            case CorElementType.ELEMENT_TYPE_CHAR:
            {
                if (variablesToLog == null)
                {
                }
                else if (!variablesToLog.Any(variable => variable.Key == variableName))
                {
                    return("[SKIP]");
                }

                object v = value.CastToGenericValue().GetValue();
                string result;

                IFormattable vFormattable = v as IFormattable;
                if (vFormattable != null)
                {
                    result = vFormattable.ToString(null, System.Globalization.CultureInfo.CurrentUICulture);
                }
                else
                {
                    result = v.ToString();
                }

                // let's put quotes around char values
                if (value.Type == CorElementType.ELEMENT_TYPE_CHAR)
                {
                    result = "'" + result + "'";
                }

                return(Loger.WriteThisToLog(variableName, prefix + result));
            }

            case CorElementType.ELEMENT_TYPE_CLASS:
            case CorElementType.ELEMENT_TYPE_VALUETYPE:
                CorObjectValue ov           = value.CastToObjectValue();
                var            objectString = PrintObject(indentLevel, ov, expandDepth, canDoFunceval, variableName, variablesToLog);
                string         objectPrint;

                if (objectString == "[SKIP]")
                {
                    objectPrint = "[SKIP]";
                }
                else
                {
                    objectPrint = prefix + objectString;
                    Loger.WriteThisToLog(variableName, objectPrint.Substring(0, objectPrint.IndexOf('\n') > -1 ? objectPrint.IndexOf('\n') : objectPrint.Length));
                }

                return(objectPrint);

            case CorElementType.ELEMENT_TYPE_STRING:
                if (variablesToLog == null)
                {
                }
                else if (!variablesToLog.Any(variable => variable.Key == variableName))
                {
                    return("[SKIP]");
                }
                CorStringValue sv = value.CastToStringValue();
                return(Loger.WriteThisToLog(variableName, $"{prefix}\"{sv.String}\""));

            case CorElementType.ELEMENT_TYPE_SZARRAY:
            case CorElementType.ELEMENT_TYPE_ARRAY:
                CorArrayValue av          = value.CastToArrayValue();
                var           arrayString = PrintArray(indentLevel, av, expandDepth, canDoFunceval, variableName, variablesToLog);
                string        arrayPrint;
                if (arrayString == "[SKIP]")
                {
                    arrayPrint = "[SKIP]";
                }
                else
                {
                    arrayPrint = prefix + arrayString;
                    Loger.WriteThisToLog(variableName, arrayPrint.Substring(0, arrayPrint.IndexOf('\n') > -1 ? arrayPrint.IndexOf('\n') : arrayPrint.Length));
                }
                return(arrayPrint);

            case CorElementType.ELEMENT_TYPE_PTR:
                return(Loger.WriteThisToLog(variableName, prefix + "<non-null pointer>"));;

            case CorElementType.ELEMENT_TYPE_FNPTR:
                return(Loger.WriteThisToLog(variableName, prefix + "0x" + value.CastToReferenceValue().Value.ToString("X")));

            case CorElementType.ELEMENT_TYPE_BYREF:
            case CorElementType.ELEMENT_TYPE_TYPEDBYREF:
            case CorElementType.ELEMENT_TYPE_OBJECT:
            default:
                return(Loger.WriteThisToLog(variableName, prefix + "<printing value of type: " + value.Type + " not implemented>"));
            }
        }