ExpandedItemEntity(IVariableInformation variable, NatvisScope natvisScope,
ExpandedItemType expandedItem, NatvisDiagnosticLogger logger,
NatvisEntityStore store, NatvisExpressionEvaluator evaluator)
: base(variable, logger, evaluator, natvisScope)
{
_expandedItem = expandedItem;
_store = store;
}
private IVariableInformation[] ExpandVisualized(IVariableInformation variable)
{
VisualizerInfo visualizer = FindType(variable);
if (visualizer == null)
{
return(variable.Children);
}
List <IVariableInformation> children = new List <IVariableInformation>();
ExpandType1 expandType = (ExpandType1)Array.Find(visualizer.Visualizer.Items, (o) => { return(o is ExpandType1); });
if (expandType == null)
{
return(variable.Children);
}
foreach (var i in expandType.Items)
{
if (i is ItemType)
{
ItemType item = (ItemType)i;
if (!EvalCondition(item.Condition, variable, visualizer.ScopedNames))
{
continue;
}
IVariableInformation expr = GetExpression(item.Value, variable, visualizer.ScopedNames, item.Name);
children.Add(expr);
}
else if (i is ArrayItemsType)
{
ArrayItemsType item = (ArrayItemsType)i;
if (!EvalCondition(item.Condition, variable, visualizer.ScopedNames))
{
continue;
}
uint size = 0;
string val = GetExpressionValue(item.Size, variable, visualizer.ScopedNames);
size = MICore.Debugger.ParseUint(val, throwOnError: true);
size = size > MAX_EXPAND ? MAX_EXPAND : size; // limit expansion
ValuePointerType[] vptrs = item.ValuePointer;
foreach (var vp in vptrs)
{
if (EvalCondition(vp.Condition, variable, visualizer.ScopedNames))
{
IVariableInformation ptrExpr = GetExpression('*' + vp.Value, variable, visualizer.ScopedNames);
string typename = ptrExpr.TypeName;
if (String.IsNullOrWhiteSpace(typename))
{
continue;
}
StringBuilder arrayBuilder = new StringBuilder();
arrayBuilder.Append('(');
arrayBuilder.Append(typename);
arrayBuilder.Append('[');
arrayBuilder.Append(size);
arrayBuilder.Append("])*(");
arrayBuilder.Append(vp.Value);
arrayBuilder.Append(')');
string arrayStr = arrayBuilder.ToString();
IVariableInformation arrayExpr = GetExpression(arrayStr, variable, visualizer.ScopedNames);
arrayExpr.EnsureChildren();
if (arrayExpr.CountChildren != 0)
{
Array.ForEach(arrayExpr.Children, (c) => children.Add(c));
}
break;
}
}
}
else if (i is TreeItemsType)
{
TreeItemsType item = (TreeItemsType)i;
if (!EvalCondition(item.Condition, variable, visualizer.ScopedNames))
{
continue;
}
if (String.IsNullOrWhiteSpace(item.Size) || String.IsNullOrWhiteSpace(item.HeadPointer) || String.IsNullOrWhiteSpace(item.LeftPointer) ||
String.IsNullOrWhiteSpace(item.RightPointer))
{
continue;
}
if (item.ValueNode == null || String.IsNullOrWhiteSpace(item.ValueNode.Value))
{
continue;
}
string val = GetExpressionValue(item.Size, variable, visualizer.ScopedNames);
uint size = MICore.Debugger.ParseUint(val, throwOnError: true);
size = size > MAX_EXPAND ? MAX_EXPAND : size; // limit expansion
IVariableInformation headVal = GetExpression(item.HeadPointer, variable, visualizer.ScopedNames);
ulong head = MICore.Debugger.ParseAddr(headVal.Value);
var content = new List <IVariableInformation>();
if (head != 0 && size != 0)
{
headVal.EnsureChildren();
Traverse goLeft = GetTraverse(item.LeftPointer, headVal);
Traverse goRight = GetTraverse(item.RightPointer, headVal);
Traverse getValue = null;
if (item.ValueNode.Value == "this") // TODO: handle condition
{
getValue = (v) => v;
}
else if (headVal.FindChildByName(item.ValueNode.Value) != null)
{
getValue = (v) => v.FindChildByName(item.ValueNode.Value);
}
if (goLeft == null || goRight == null || getValue == null)
{
continue;
}
TraverseTree(headVal, goLeft, goRight, getValue, children, size);
}
}
else if (i is LinkedListItemsType)
{
// example:
// <LinkedListItems>
// <Size>m_nElements</Size> -- optional, will go until NextPoint is 0 or == HeadPointer
// <HeadPointer>m_pHead</HeadPointer>
// <NextPointer>m_pNext</NextPointer>
// <ValueNode>m_element</ValueNode>
// </LinkedListItems>
LinkedListItemsType item = (LinkedListItemsType)i;
if (String.IsNullOrWhiteSpace(item.Condition))
{
if (!EvalCondition(item.Condition, variable, visualizer.ScopedNames))
{
continue;
}
}
if (String.IsNullOrWhiteSpace(item.HeadPointer) || String.IsNullOrWhiteSpace(item.NextPointer))
{
continue;
}
if (String.IsNullOrWhiteSpace(item.ValueNode))
{
continue;
}
uint size = MAX_EXPAND;
if (!String.IsNullOrWhiteSpace(item.Size))
{
string val = GetExpressionValue(item.Size, variable, visualizer.ScopedNames);
size = MICore.Debugger.ParseUint(val);
size = size > MAX_EXPAND ? MAX_EXPAND : size; // limit expansion
}
IVariableInformation headVal = GetExpression(item.HeadPointer, variable, visualizer.ScopedNames);
ulong head = MICore.Debugger.ParseAddr(headVal.Value);
var content = new List <IVariableInformation>();
if (head != 0 && size != 0)
{
headVal.EnsureChildren();
Traverse goNext = GetTraverse(item.NextPointer, headVal);
Traverse getValue = null;
if (item.ValueNode == "this")
{
getValue = (v) => v;
}
else if (headVal.FindChildByName(item.ValueNode) != null)
{
getValue = (v) => v.FindChildByName(item.ValueNode);
}
else
{
var value = GetExpression(item.ValueNode, headVal, visualizer.ScopedNames);
if (value != null && !value.Error)
{
getValue = (v) => GetExpression(item.ValueNode, v, visualizer.ScopedNames);
}
}
if (goNext == null || getValue == null)
{
continue;
}
TraverseList(headVal, goNext, getValue, children, size, item.NoValueHeadPointer);
}
}
else if (i is IndexListItemsType)
{
// example:
// <IndexListItems>
// <Size>_M_vector._M_index</Size>
// <ValueNode>*(_M_vector._M_array[$i])</ValueNode>
// </IndexListItems>
IndexListItemsType item = (IndexListItemsType)i;
if (!EvalCondition(item.Condition, variable, visualizer.ScopedNames))
{
continue;
}
var sizes = item.Size;
uint size = 0;
if (sizes == null)
{
continue;
}
foreach (var s in sizes)
{
if (string.IsNullOrWhiteSpace(s.Value))
{
continue;
}
if (EvalCondition(s.Condition, variable, visualizer.ScopedNames))
{
string val = GetExpressionValue(s.Value, variable, visualizer.ScopedNames);
size = MICore.Debugger.ParseUint(val);
size = size > MAX_EXPAND ? MAX_EXPAND : size; // limit expansion
break;
}
}
var values = item.ValueNode;
if (values == null)
{
continue;
}
foreach (var v in values)
{
if (string.IsNullOrWhiteSpace(v.Value))
{
continue;
}
if (EvalCondition(v.Condition, variable, visualizer.ScopedNames))
{
string processedExpr = ReplaceNamesInExpression(v.Value, variable, visualizer.ScopedNames);
Dictionary <string, string> indexDic = new Dictionary <string, string>();
for (uint index = 0; index < size; ++index)
{
indexDic["$i"] = index.ToString(CultureInfo.InvariantCulture);
string finalExpr = ReplaceNamesInExpression(processedExpr, null, indexDic);
IVariableInformation expressionVariable = new VariableInformation(finalExpr, variable, _process.Engine, "[" + indexDic["$i"] + "]");
expressionVariable.SyncEval();
children.Add(expressionVariable);
}
break;
}
}
}
else if (i is ExpandedItemType)
{
ExpandedItemType item = (ExpandedItemType)i;
// example:
// <Type Name="std::auto_ptr<*>">
// <DisplayString>auto_ptr {*_Myptr}</DisplayString>
// <Expand>
// <ExpandedItem>_Myptr</ExpandedItem>
// </Expand>
// </Type>
if (item.Condition != null)
{
if (!EvalCondition(item.Condition, variable, visualizer.ScopedNames))
{
continue;
}
}
if (String.IsNullOrWhiteSpace(item.Value))
{
continue;
}
var expand = GetExpression(item.Value, variable, visualizer.ScopedNames);
var eChildren = Expand(expand);
if (eChildren != null)
{
Array.ForEach(eChildren, (c) => children.Add(c));
}
}
}
if (!(variable is VisualizerWrapper)) // don't stack wrappers
{
// add the [Raw View] field
IVariableInformation rawView = new VisualizerWrapper(ResourceStrings.RawView, _process.Engine, variable, visualizer, isVisualizerView: false);
children.Add(rawView);
}
return(children.ToArray());
}
public INatvisEntity Create(IVariableInformation variable, NatvisScope natvisScope,
ExpandedItemType expandedItem) =>
new ExpandedItemEntity(variable, natvisScope, expandedItem, _logger,
new NatvisEntityStore(), _evaluator);
