/// <summary>
/// Builds full object graph for given string expression.
/// </summary>
/// <param name="expression">Expression valid in the program being debugged (eg. variable name)</param>
/// <returns>Object graph</returns>
public ObjectGraph BuildGraphForExpression(GraphExpression expression, ExpandedExpressions expandedNodes)
{
if (WindowsDebugger.CurrentStackFrame == null) {
throw new DebuggerVisualizerException("Please use the visualizer when debugging.");
}
Value rootValue = expression.GetValue();
if (rootValue.IsNull) {
throw new DebuggerVisualizerException(expression + " is null.");
}
return buildGraphForValue(rootValue.GetPermanentReference(WindowsDebugger.EvalThread), expression, expandedNodes);
}
/// <summary>
/// Builds full object graph for given string expression.
/// </summary>
/// <param name="expression">Expression valid in the program being debugged (eg. variable name)</param>
/// <returns>Object graph</returns>
public ObjectGraph BuildGraphForExpression(GraphExpression expression, ExpandedExpressions expandedNodes)
{
if (WindowsDebugger.CurrentStackFrame == null)
{
throw new DebuggerVisualizerException("Please use the visualizer when debugging.");
}
Value rootValue = expression.GetValue();
if (rootValue.IsNull)
{
throw new DebuggerVisualizerException(expression + " is null.");
}
return(buildGraphForValue(rootValue.GetPermanentReference(WindowsDebugger.EvalThread), expression, expandedNodes));
}
/// <summary>
/// Builds full object graph for given string expression.
/// </summary>
/// <param name="expression">Expression valid in the program being debugged (eg. variable name)</param>
/// <returns>Object graph</returns>
public ObjectGraph BuildGraphForExpression(string expression, ExpandedExpressions expandedNodes)
{
if (string.IsNullOrEmpty(expression)) {
throw new DebuggerVisualizerException("Please specify an expression.");
}
var debuggedProcess = this.debuggerService.DebuggedProcess;
if (debuggedProcess == null || debuggedProcess.IsRunning || debuggedProcess.SelectedStackFrame == null) {
throw new DebuggerVisualizerException("Please use the visualizer when debugging.");
}
var rootExpression = ExpressionEvaluator.ParseExpression(expression, SupportedLanguage.CSharp);
Value rootValue = rootExpression.Evaluate(debuggedProcess);
if (rootValue.IsNull) {
throw new DebuggerVisualizerException(expression + " is null.");
}
return buildGraphForValue(rootValue.GetPermanentReference(), rootExpression, expandedNodes);
}
/// <summary>
/// For each complex property of this node, create s neighbor graph node if needed and connects the neighbor to ObjectProperty.TargetNode.
/// </summary>
/// <param name="thisNode"></param>
/// <param name="expandedNodes"></param>
private void loadNeighborsRecursive(ObjectGraphNode thisNode, ExpandedExpressions expandedNodes)
{
//foreach(ObjectGraphProperty complexProperty in thisNode.ComplexProperties)
foreach (ObjectGraphProperty complexProperty in thisNode.Properties)
{
ObjectGraphNode targetNode = null;
// we are only evaluating expanded nodes here
// (we have to do this to know the "shape" of the graph)
// property laziness makes sense, as we are not evaluating atomic and non-expanded properties out of user's view
if (/*!complexProperty.IsNull && we dont know yet if it's null */ expandedNodes.IsExpanded(complexProperty.Expression))
{
// if expanded, evaluate this property
// complexProperty.Evaluate(); // consider
Value memberValue = complexProperty.Expression.Evaluate(this.debuggerService.DebuggedProcess);
if (memberValue.IsNull)
{
continue;
}
else
{
// if property value is not null, create neighbor
memberValue = memberValue.GetPermanentReference();
bool createdNew;
// get existing node (loop) or create new
targetNode = ObtainNodeForValue(memberValue, complexProperty.Expression, out createdNew);
if (createdNew)
{
// if member node is new, recursively build its subtree
loadNeighborsRecursive(targetNode, expandedNodes);
}
}
}
else
{
targetNode = null;
}
// connect property to target ObjectGraphNode
complexProperty.TargetNode = targetNode;
}
}
/// <summary>
/// For each complex property of this node, create s neighbor graph node if needed and connects the neighbor to ObjectProperty.TargetNode.
/// </summary>
/// <param name="thisNode"></param>
/// <param name="expandedNodes"></param>
private void loadNeighborsRecursive(ObjectGraphNode thisNode, ExpandedExpressions expandedNodes)
{
// evaluate properties first in case property getters are changing some fields - the fields will then have correct values
foreach (ObjectGraphProperty complexProperty in thisNode.PropertiesFirstThenFields)
{
ObjectGraphNode targetNode = null;
// We are only evaluating expanded nodes here.
// We have to do this to know the "shape" of the graph.
// We do not evaluate atomic and non-expanded properties, those will be lazy evaluated when drawn.
if (expandedNodes.IsExpanded(complexProperty.Expression))
{
// if expanded, evaluate this property
Value memberValue = complexProperty.Expression.Evaluate(this.debuggerService.DebuggedProcess);
if (memberValue.IsNull)
{
continue;
}
else
{
// if property value is not null, create neighbor
memberValue = memberValue.GetPermanentReference();
bool createdNew;
// get existing node (loop) or create new
targetNode = ObtainNodeForValue(memberValue, complexProperty.Expression, out createdNew);
if (createdNew)
{
// if member node is new, recursively build its subtree
loadNeighborsRecursive(targetNode, expandedNodes);
}
}
}
else
{
targetNode = null;
}
// connect property to target ObjectGraphNode
complexProperty.TargetNode = targetNode;
}
}
/// <summary>
/// Builds full object graph for given string expression.
/// </summary>
/// <param name="expression">Expression valid in the program being debugged (eg. variable name)</param>
/// <returns>Object graph</returns>
public ObjectGraph BuildGraphForExpression(string expression, ExpandedExpressions expandedNodes)
{
if (string.IsNullOrEmpty(expression))
{
throw new DebuggerVisualizerException("Please specify an expression.");
}
var debuggedProcess = this.debuggerService.DebuggedProcess;
if (debuggedProcess == null || debuggedProcess.IsRunning || debuggedProcess.SelectedStackFrame == null)
{
throw new DebuggerVisualizerException("Please use the visualizer when debugging.");
}
var rootExpression = ExpressionEvaluator.ParseExpression(expression, SupportedLanguage.CSharp);
Value rootValue = rootExpression.Evaluate(debuggedProcess);
if (rootValue.IsNull)
{
throw new DebuggerVisualizerException(expression + " is null.");
}
return(buildGraphForValue(rootValue.GetPermanentReference(), rootExpression, expandedNodes));
}
private ObjectGraph buildGraphForValue(Value rootValue, GraphExpression rootExpression, ExpandedExpressions expandedNodes)
{
resultGraph = new ObjectGraph();
//resultGraph.Root = buildGraphRecursive(debuggerService.GetValueFromName(expression).GetPermanentReference(), expandedNodes);
resultGraph.Root = createNewNode(rootValue, rootExpression);
loadContent(resultGraph.Root);
loadNeighborsRecursive(resultGraph.Root, expandedNodes);
return(resultGraph);
}
/// <summary>
/// For each complex property of this node, creates a neighbor graph node if needed and connects
/// it using to ObjectProperty.TargetNode.
/// </summary>
private void loadNeighborsRecursive(ObjectGraphNode thisNode, ExpandedExpressions expandedNodes)
{
// evaluate properties first in case property getters are changing some fields - the fields will then have correct values
foreach(ObjectGraphProperty complexProperty in thisNode.PropertiesFirstThenFields) {
ObjectGraphNode targetNode = null;
// We are only evaluating expanded nodes here.
// We have to do this to know the "shape" of the graph.
// We do not evaluate atomic and non-expanded properties, those will be lazy evaluated when drawn.
if (expandedNodes.IsExpanded(complexProperty.Expression.Expr)) {
// if expanded, evaluate this property
Value memberValue = complexProperty.Expression.GetValue();
if (memberValue.IsNull) {
continue;
} else {
// if property value is not null, create neighbor
memberValue = memberValue.GetPermanentReference(WindowsDebugger.EvalThread);
bool createdNew;
// get existing node (loop) or create new
targetNode = ObtainNodeForValue(memberValue, complexProperty.Expression, out createdNew);
if (createdNew) {
// if member node is new, recursively build its subtree
loadNeighborsRecursive(targetNode, expandedNodes);
}
}
}
// connect property to target ObjectGraphNode
complexProperty.TargetNode = targetNode;
}
}
private ObjectGraph buildGraphForValue(Value rootValue, GraphExpression rootExpression, ExpandedExpressions expandedNodes)
{
resultGraph = new ObjectGraph();
//resultGraph.Root = buildGraphRecursive(debuggerService.GetValueFromName(expression).GetPermanentReference(), expandedNodes);
resultGraph.Root = createNewNode(rootValue, rootExpression);
loadContent(resultGraph.Root);
loadNeighborsRecursive(resultGraph.Root, expandedNodes);
return resultGraph;
}
