public LuaValueDataBase LookupTableMember(LuaTableData table, string name)
{
if (process == null)
{
return(Report("Can't load table - process memory is not available"));
}
table.LoadKeys(process);
foreach (var element in table.nodeKeys)
{
var keyAsString = element.key as LuaValueDataString;
if (keyAsString == null)
{
continue;
}
if (keyAsString.value == name)
{
return(element.LoadValue(process));
}
}
table.LoadMetaTableKeys(process);
if (table.metaTable != null)
{
foreach (var element in table.metaTable.nodeKeys)
{
var keyAsString = element.key as LuaValueDataString;
if (keyAsString == null)
{
continue;
}
if (keyAsString.value == "__index")
{
var indexMetaTableValue = element.LoadValue(process);
if (indexMetaTableValue is LuaValueDataTable indexMetaTableValueTable)
{
return(LookupTableMember(indexMetaTableValueTable.value, name));
}
}
}
}
return(Report($"Failed to find key '{name}' in table"));
}
internal static DkmEvaluationResult GetTableChildAtIndex(DkmInspectionContext inspectionContext, DkmStackWalkFrame stackFrame, string fullName, LuaTableData value, int index)
{
if (value == null)
{
return(DkmFailedEvaluationResult.Create(inspectionContext, stackFrame, $"[{index + 1}]", $"{fullName}[{index + 1}]", "Table data is missing", DkmEvaluationResultFlags.Invalid, null));
}
var process = stackFrame.Process;
var arrayElementCount = value.GetArrayElementCount(process);
if (index < arrayElementCount)
{
var arrayElements = value.GetArrayElements(process);
var element = arrayElements[index];
return(EvaluateDataAtLuaValue(inspectionContext, stackFrame, $"[{index + 1}]", $"{fullName}[{index + 1}]", element, DkmEvaluationResultFlags.None, DkmEvaluationResultAccessType.None, DkmEvaluationResultStorageType.None));
}
index = index - arrayElementCount;
var nodeElementCount = value.GetNodeElementCount(process);
if (index < nodeElementCount)
{
var lazyNodeElements = value.GetNodeLazyElements(process);
var node = lazyNodeElements[index];
var nodeKey = node.LoadKey(process, value.batchNodeElementData);
DkmEvaluationResultFlags flags = DkmEvaluationResultFlags.None;
string name = EvaluateValueAtLuaValue(process, nodeKey, 10, out _, ref flags, out _, out _);
var keyString = nodeKey as LuaValueDataString;
if (keyString != null)
{
name = keyString.value;
}
if (name == null || name.Length == 0)
{
name = "%error-name%";
}
// Check if name is an identifier
bool isIdentifierName = false;
if (char.IsLetter(name[0]) || name[0] == '_')
{
int pos = 1;
while (pos < name.Length && (char.IsLetterOrDigit(name[pos]) || name[pos] == '_'))
{
pos++;
}
isIdentifierName = pos == name.Length;
}
if (isIdentifierName)
{
return(EvaluateDataAtLuaValue(inspectionContext, stackFrame, name, $"{fullName}.{name}", node.LoadValue(process, value.batchNodeElementData), DkmEvaluationResultFlags.None, DkmEvaluationResultAccessType.None, DkmEvaluationResultStorageType.None));
}
return(EvaluateDataAtLuaValue(inspectionContext, stackFrame, $"\"{name}\"", $"{fullName}[\"{name}\"]", node.LoadValue(process, value.batchNodeElementData), DkmEvaluationResultFlags.None, DkmEvaluationResultAccessType.None, DkmEvaluationResultStorageType.None));
}
index = index - nodeElementCount;
if (index == 0 && value.HasMetaTable())
{
var metaTableValue = new LuaValueDataTable
{
baseType = LuaBaseType.Table,
extendedType = LuaExtendedType.Table,
evaluationFlags = DkmEvaluationResultFlags.ReadOnly,
originalAddress = 0, // Not available as TValue
value = value.GetMetaTable(process),
targetAddress = value.metaTableDataAddress
};
return(EvaluateDataAtLuaValue(inspectionContext, stackFrame, "!metatable", $"{fullName}.!metatable", metaTableValue, DkmEvaluationResultFlags.None, DkmEvaluationResultAccessType.None, DkmEvaluationResultStorageType.None));
}
Debug.Assert(false, "Invalid child index");
return(null);
}
