public override DbgDotNetValueNode[] GetChildren(LanguageValueNodeFactory valueNodeFactory, DbgEvaluationInfo evalInfo, ulong index, int count, DbgValueNodeEvaluationOptions options, ReadOnlyCollection <string>?formatSpecifiers)
{
var res = count == 0 ? Array.Empty <DbgDotNetValueNode>() : new DbgDotNetValueNode[count];
DbgDotNetValueResult newValue = default;
try {
var output = ObjectCache.AllocDotNetTextOutput();
var elementType = valueInfo.Value.Type.GetElementType() !;
var castType = NeedCast(slotType, valueInfo.Value.Type) ? valueInfo.Value.Type : null;
for (int i = 0; i < res.Length; i++)
{
evalInfo.CancellationToken.ThrowIfCancellationRequested();
string expression;
uint arrayIndex = (uint)index + (uint)i;
newValue = valueInfo.Value.GetArrayElementAt(arrayIndex);
if (dimensionInfos.Length == 1)
{
int baseIndex = (int)arrayIndex + dimensionInfos[0].BaseIndex;
expression = valueNodeFactory.GetExpression(valueInfo.Expression, baseIndex, castType, addParens);
owner.FormatArrayName(output, baseIndex);
}
else
{
uint indexLeft = arrayIndex;
Debug2.Assert(indexes is not null);
for (int j = dimensionInfos.Length - 1; j >= 0; j--)
{
indexes[j] = (int)(indexLeft % dimensionInfos[j].Length) + dimensionInfos[j].BaseIndex;
indexLeft = indexLeft / dimensionInfos[j].Length;
}
expression = valueNodeFactory.GetExpression(valueInfo.Expression, indexes, castType, addParens);
owner.FormatArrayName(output, indexes);
}
var name = output.CreateAndReset();
DbgDotNetValueNode?newNode;
if (newValue.HasError)
{
newNode = valueNodeFactory.CreateError(evalInfo, name, newValue.ErrorMessage !, expression, false);
}
else
{
newNode = null;
if (CSharpDynamicPropertyHelper.IsCSharpDynamicProperty(newValue.Value !.Type))
{
var info = CSharpDynamicPropertyHelper.GetRealValue(evalInfo, newValue.Value);
if (info.name is not null)
{
newValue.Value.Dispose();
name = new DbgDotNetText(new DbgDotNetTextPart(DbgTextColor.DebugViewPropertyName, info.name));
expression = valueNodeFactory.GetFieldExpression(expression, info.valueField.Name, null, false);
newNode = valueNodeFactory.Create(evalInfo, name, info.value, formatSpecifiers, options, expression, PredefinedDbgValueNodeImageNames.DynamicViewElement, true, false, info.valueField.FieldType, false);
}
}
if (newNode is null)
{
newNode = valueNodeFactory.Create(evalInfo, name, newValue.Value, formatSpecifiers, options, expression, PredefinedDbgValueNodeImageNames.ArrayElement, false, false, elementType, false);
}
}
newValue = default;
res[i] = newNode;
}
ObjectCache.Free(ref output);
}
catch {
evalInfo.Context.Process.DbgManager.Close(res.Where(a => a is not null));
newValue.Value?.Dispose();
throw;
}
return(res);
}
protected (DbgDotNetValueNode node, bool canHide) CreateValueNode(DbgEvaluationInfo evalInfo, bool addParens, DmdType slotType, DbgDotNetValue value, int index, DbgValueNodeEvaluationOptions options, string baseExpression, ReadOnlyCollection <string> formatSpecifiers)
{
var runtime = evalInfo.Runtime.GetDotNetRuntime();
if ((evalOptions & DbgValueNodeEvaluationOptions.RawView) != 0)
{
options |= DbgValueNodeEvaluationOptions.RawView;
}
DbgDotNetValueResult valueResult = default;
try {
ref var info = ref membersCollection.Members[index];
string expression, imageName;
bool isReadOnly;
DmdType expectedType;
var castType = info.NeedCast || NeedCast(slotType, GetMemberDeclaringType(info.Member)) ? info.Member.DeclaringType : null;
switch (info.Member.MemberType)
{
case DmdMemberTypes.Field:
var field = (DmdFieldInfo)info.Member;
expression = valueNodeFactory.GetFieldExpression(baseExpression, field.Name, castType, addParens);
expectedType = field.FieldType;
imageName = ImageNameUtils.GetImageName(field);
valueResult = runtime.LoadField(evalInfo, value, field);
// We should be able to change read only fields (we're a debugger), but since the
// compiler will complain, we have to prevent the user from editing the value.
isReadOnly = field.IsInitOnly;
break;
case DmdMemberTypes.Property:
var property = (DmdPropertyInfo)info.Member;
expression = valueNodeFactory.GetPropertyExpression(baseExpression, property.Name, castType, addParens);
expectedType = property.PropertyType;
imageName = ImageNameUtils.GetImageName(property);
if ((options & DbgValueNodeEvaluationOptions.NoFuncEval) != 0)
{
isReadOnly = true;
valueResult = DbgDotNetValueResult.CreateError(PredefinedEvaluationErrorMessages.FuncEvalDisabled);
}
else
{
var getter = property.GetGetMethod(DmdGetAccessorOptions.All) ?? throw new InvalidOperationException();
valueResult = runtime.Call(evalInfo, value, getter, Array.Empty <object>(), DbgDotNetInvokeOptions.None);
isReadOnly = (object)property.GetSetMethod(DmdGetAccessorOptions.All) == null;
}
break;
default:
throw new InvalidOperationException();
}
DbgDotNetValueNode newNode;
bool canHide = true;
var customInfo = TryCreateInstanceValueNode(evalInfo, valueResult);
if (customInfo.node != null)
{
(newNode, canHide) = customInfo;
}
else if (valueResult.HasError)
{
newNode = valueNodeFactory.CreateError(evalInfo, info.Name, valueResult.ErrorMessage, expression, false);
canHide = false;
}
else if (valueResult.ValueIsException)
{
newNode = valueNodeFactory.Create(evalInfo, info.Name, valueResult.Value, formatSpecifiers, options, expression, PredefinedDbgValueNodeImageNames.Error, true, false, expectedType, false);
}
else
{
newNode = valueNodeFactory.Create(evalInfo, info.Name, valueResult.Value, formatSpecifiers, options, expression, imageName, isReadOnly, false, expectedType, false);
}
valueResult = default;
return(newNode, canHide);
}