private VariablesMessageResult DoGetVariablesByScope(Scope scope)
{
EnsureIsCurrentScope(scope);
IDebugSymbolGroup2 group;
IDebugSymbolGroup2 oldGroup = State.GetSymbolsForScope(scope.Id);
uint oldItemsCount = 0;
if (oldGroup != null)
{
oldGroup.GetNumberSymbols(out oldItemsCount);
}
var hr = _symbols.GetScopeSymbolGroup2(Scopes.GetScopeByName(scope.Name), oldGroup, out group);
if (hr != HResult.Ok)
{
return(new VariablesMessageResult(Enumerable.Empty <Variable>()));
}
State.UpdateSymbolGroup(scope.Id, group);
uint newItemsCount = 0;
group.GetNumberSymbols(out newItemsCount);
if (oldItemsCount == newItemsCount)
{
return(new VariablesMessageResult(State.GetVariablesByScope(scope.Id)));
}
var result = DoGetVariablesFromSymbols(group, 0, Defaults.NoParent, scope.Id);
return(new VariablesMessageResult(result));
}
private IEnumerable<Variable> DoGetVariablesFromSymbols(IDebugSymbolGroup2 symbols, uint startIndex, uint parentSymbolListIndex, int parentId)
{
List<Variable> result = new List<Variable>();
uint variableCount;
var hr = symbols.GetNumberSymbols(out variableCount);
if (hr != HResult.Ok)
return result;
DEBUG_SYMBOL_PARAMETERS[] parameters = new DEBUG_SYMBOL_PARAMETERS[variableCount];
hr = symbols.GetSymbolParameters(0, variableCount, parameters);
if (hr != HResult.Ok)
return result;
for (uint variableIndex = startIndex; variableIndex < variableCount; variableIndex++)
{
if (parentSymbolListIndex != Defaults.NoParent && !IsChild(parentSymbolListIndex, parameters, variableIndex))
continue;
DEBUG_SYMBOL_ENTRY entry;
symbols.GetSymbolEntryInformation(variableIndex, out entry);
StringBuilder buffer = new StringBuilder(Defaults.BufferSize);
uint nameSize;
hr = symbols.GetSymbolNameWide(variableIndex, buffer, Defaults.BufferSize, out nameSize);
if (hr != HResult.Ok)
continue;
var variableName = buffer.ToString();
hr = symbols.GetSymbolTypeNameWide(variableIndex, buffer, Defaults.BufferSize, out nameSize);
if (hr != HResult.Ok)
continue;
var typeName = buffer.ToString();
hr = symbols.GetSymbolValueTextWide(variableIndex, buffer, Defaults.BufferSize, out nameSize);
if (hr != HResult.Ok)
continue;
var value = buffer.ToString();
var typedData = _requestHelper.CreateTypedData(entry.ModuleBase, entry.Offset, entry.TypeId);
VisualizationResult handledVariable;
Variable variable;
if (_visualizers.TryHandle(new VariableMetaData(variableName, typeName, typedData), out handledVariable))
{
variable = State.AddVariable(
parentId,
(id) => new Variable(id, variableName, typeName, handledVariable.Value, handledVariable.HasChildren),
typedData);
}
else
{
bool hasChildren = false;
if (parameters.Length > variableIndex)
hasChildren = parameters[variableIndex].SubElements > 0;
variable = State.AddVariable(parentId, (id) => new Variable(id, variableName, typeName, value, hasChildren), typedData);
}
result.Add(variable);
}
return result;
}
public void UpdateSymbolGroup(int id, IDebugSymbolGroup2 group)
{
_symbolGroups[id] = group;
}
public ScopeSymbolGroup(IDebugSymbolGroup2 group)
{
_group = group;
}
