public ObjectValue[] GetArrayChildren(ObjectCacheNode cacheNode,ObjectPath arrayPath, int index, int elementsToDisplay, EvaluationOptions options)
{
var t = cacheNode.NodeType as ArrayType;
var elementType = t.ValueType;
var sizeOfElement = SizeOf (elementType);
ulong firstItemPointer;
if (cacheNode is SubArrayCacheNode) {
var sac = cacheNode as SubArrayCacheNode;
firstItemPointer = sac.firstItem;
elementsToDisplay = Math.Min (sac.length, index + elementsToDisplay) - index;
} else {
var header = Memory.ReadDArrayHeader (cacheNode.addressExpression);
firstItemPointer = header.FirstItem.ToUInt64 ();
elementsToDisplay = Math.Min (header.Length, index + elementsToDisplay) - index;
}
byte[] rawArrayContent;
var startAddress = firstItemPointer + (ulong)(index * sizeOfElement);
Memory.Read (startAddress.ToString (), sizeOfElement * elementsToDisplay, out rawArrayContent);
var children = new ObjectValue[elementsToDisplay];
ObjectPath item;
var elementTypeToken = elementType is PrimitiveType ? (elementType as PrimitiveType).TypeToken : DTokens.INVALID;
if (elementTypeToken != DTokens.INVALID)
{
var valFunc = DGdbTools.GetValueFunction (elementTypeToken);
var elementTypeString = elementType.ToCode ();
var hex = DisplayAsHex;
for (uint i = 0; i < elementsToDisplay; i++) {
var valStr = valFunc (rawArrayContent, (int)(i * sizeOfElement), hex);
item = arrayPath.Append ((index + i).ToString ());
children [i] = ObjectValue.CreatePrimitive (ValueSource, item, elementTypeString,
new EvaluationResult (valStr), ObjectValueFlags.ArrayElement);
}
}
else if (elementType is ArrayType) {
var elementArrayType = elementType as ArrayType;
for (var i = elementsToDisplay - 1; i >= 0; i--){
item = arrayPath.Append ((index + i).ToString ());
try{
int subArrayLength;
ulong subArrayFirstPointer;
ExamArrayInfo (rawArrayContent, i * sizeOfElement, out subArrayLength, out subArrayFirstPointer);
children [i] = EvaluateArray (subArrayLength, subArrayFirstPointer, elementArrayType,
ObjectValueFlags.ArrayElement, item);
cacheNode.Set(new SubArrayCacheNode(item.LastName, elementArrayType, subArrayFirstPointer, subArrayLength));
}catch(Exception ex) {
Ide.MessageService.ShowException (ex);
}
}
}
else if (elementType is PointerType ||
elementType is InterfaceType ||
elementType is ClassType) {
for (int i = 0; i < elementsToDisplay; i++) {
item = arrayPath.Append ((index + i).ToString ());
long elementPointer;
if (sizeOfElement == 4)
elementPointer = BitConverter.ToInt32 (rawArrayContent, i * 4);
else
elementPointer = BitConverter.ToInt64 (rawArrayContent, i * 8);
children [i] = EvaluateVariable (elementPointer.ToString (), ref elementType, ObjectValueFlags.ArrayElement, item);
cacheNode.Set(new ObjectCacheNode(item.LastName, elementType, (elementPointer+i*sizeOfElement).ToString()));
}
}
else if (elementType is StructType/* || elementType is UnionType*/) {
// Get struct size or perhaps just get the struct meta information from gdb
//return ObjectValue.CreateNotSupported (ValueSource, path, t.ToCode (), "Struct/Union arrays can't be examined yet", flags);
}
return children;
}
public void Set(ObjectCacheNode ch)
{
if (ch == null || ch is ObjectRootCacheNode || ch == this)
throw new ArgumentException("ch and the name must be set and must not be the root node");
children [ch.Name] = ch;
}
public ObjectValue[] GetClassInstanceChildren(ObjectCacheNode cacheNode,ObjectPath classPath, EvaluationOptions options)
{
bool isStruct = cacheNode.NodeType is StructType || cacheNode.NodeType is UnionType;
if (!isStruct && !(cacheNode.NodeType is ClassType))
throw new ArgumentException ("Can only handle structs, unions and classes!");
var objectMembers = new List<ObjectValue> ();
int objectSize;
var members = GetMembersWithOffsets (cacheNode.NodeType as TemplateIntermediateType, out objectSize);
// read in the object bytes -- The length of an object can be read dynamically and thus the primary range of bytes that contain object properties.
byte[] bytes;
if (isStruct) {
Memory.Read (MemoryExamination.BuildAddressExpression(cacheNode.addressExpression, "&({0})"), objectSize, out bytes);
}
else
bytes = Memory.ReadObjectBytes (cacheNode.addressExpression);
foreach (var kv in members) {
var member = kv.Item1;
var currentOffset = kv.Item2;
var memberType = member.Base;
while (memberType is TemplateParameterSymbol || memberType is AliasedType)
memberType = (memberType as DSymbol).Base;
var memberFlags = BuildObjectValueFlags (member) | ObjectValueFlags.Field;
var memberPath = classPath.Append (member.Name);
try {
if (memberType is PrimitiveType) {
objectMembers.Add (EvaluatePrimitive (bytes, currentOffset, memberType as PrimitiveType, memberFlags, memberPath));
} else if (memberType is ArrayType) {
objectMembers.Add (EvaluateArray (bytes, currentOffset, memberType as ArrayType, memberFlags, memberPath));
}
else if (memberType is PointerType ||
memberType is InterfaceType ||
memberType is ClassType) {
long ptr;
if (DGdbSession.Is64Bit)
ptr = BitConverter.ToInt64 (bytes, currentOffset);
else
ptr = BitConverter.ToInt32 (bytes, currentOffset);
if (ptr < 1)
objectMembers.Add (ObjectValue.CreateNullObject (ValueSource, memberPath, memberType.ToCode(), memberFlags));
else
objectMembers.Add (EvaluateVariable (ptr.ToString (),ref memberType, memberFlags, memberPath));
}
else if(memberType is StructType)
objectMembers.Add(ObjectValue.CreateObject(ValueSource, memberPath, memberType.ToCode(), memberType.ToString(), memberFlags, null));
} catch (Exception ex) {
Backtrace.DSession.LogWriter (false, "Error in GetClassInstanceChildren(memberPath="+memberPath.ToString()+"): " + ex.Message+"\n");
}
// TODO: use alignof property instead of constant
// Create access expression for field inside the object.
string addressExpression;
if(isStruct)
{
addressExpression = MemoryExamination.EnforceReadRawExpression+"((void*)"+MemoryExamination.BuildAddressExpression(cacheNode.addressExpression, "&({0})")+ "+"+currentOffset+")";
}
else
addressExpression = MemoryExamination.EnforceReadRawExpression+"((void*)"+MemoryExamination.BuildAddressExpression(cacheNode.addressExpression) + "+" + currentOffset+")";
cacheNode.Set (new ObjectCacheNode (member.Name, memberType, addressExpression));
}
return objectMembers.ToArray ();
}