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using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Messages;
using Mono.Debugging.Backend;
using Mono.Debugging.Client;
using VsFormat = Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Messages.StackFrameFormat;
namespace MonoDevelop.Debugger.VsCodeDebugProtocol
{
class VSCodeDebuggerBacktrace : IBacktrace
{
readonly int threadId;
VSCodeDebuggerSession vsCodeDebuggerSession;
int totalFramesCount;
Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Messages.StackFrame [] frames;
VsFormat frame0Format;
public VSCodeDebuggerBacktrace (VSCodeDebuggerSession vsCodeDebuggerSession, int threadId)
{
this.threadId = threadId;
this.vsCodeDebuggerSession = vsCodeDebuggerSession;
frame0Format = VsCodeStackFrame.GetStackFrameFormat (vsCodeDebuggerSession.EvaluationOptions);
var body = vsCodeDebuggerSession.protocolClient.SendRequestSync (new StackTraceRequest (threadId, 0, 1, frame0Format));
totalFramesCount = body.TotalFrames ?? 0;
frames = new Microsoft.VisualStudio.Shared.VSCodeDebugProtocol.Messages.StackFrame [totalFramesCount];
if (totalFramesCount > 0 && body.StackFrames.Count > 0)
frames [0] = body.StackFrames [0];
}
public int FrameCount {
get {
return totalFramesCount;
}
}
public AssemblyLine [] Disassemble (int frameIndex, int firstLine, int count)
{
throw new NotImplementedException ();
}
public ObjectValue [] GetAllLocals (int frameIndex, EvaluationOptions options)
{
List<ObjectValue> results = new List<ObjectValue> ();
var scopeBody = vsCodeDebuggerSession.protocolClient.SendRequestSync (new ScopesRequest (frames [frameIndex].Id));
foreach (var variablesGroup in scopeBody.Scopes) {
using (var timer = vsCodeDebuggerSession.EvaluationStats.StartTimer ()) {
var varibles = vsCodeDebuggerSession.protocolClient.SendRequestSync (new VariablesRequest (variablesGroup.VariablesReference));
foreach (var variable in varibles.Variables) {
results.Add (VsCodeVariableToObjectValue (vsCodeDebuggerSession, variable.Name, variable.EvaluateName, variable.Type, variable.Value, variable.VariablesReference, variablesGroup.VariablesReference, frames [frameIndex].Id));
}
timer.Success = true;
}
}
return results.ToArray ();
}
public ExceptionInfo GetException (int frameIndex, EvaluationOptions options)
{
return new ExceptionInfo (GetAllLocals (frameIndex, options).FirstOrDefault (o => o.Name == "$exception"));
}
public CompletionData GetExpressionCompletionData (int frameIndex, string exp)
{
return new CompletionData ();
}
public ObjectValue [] GetExpressionValues (int frameIndex, string [] expressions, EvaluationOptions options)
{
var results = new List<ObjectValue> ();
foreach (var expr in expressions) {
using (var timer = vsCodeDebuggerSession.EvaluationStats.StartTimer ()) {
var responseBody = vsCodeDebuggerSession.protocolClient.SendRequestSync (new EvaluateRequest (
expr,
frames [frameIndex].Id));
results.Add (VsCodeVariableToObjectValue (vsCodeDebuggerSession, expr, expr, responseBody.Type, responseBody.Result, responseBody.VariablesReference, 0, frames [frameIndex].Id));
timer.Success = true;
}
}
return results.ToArray ();
}
internal static ObjectValue VsCodeVariableToObjectValue (VSCodeDebuggerSession vsCodeDebuggerSession, string name, string evalName, string type, string value, int variablesReference, int parentVariablesReference, int frameId)
{
return new VSCodeObjectSource (vsCodeDebuggerSession, variablesReference, parentVariablesReference, name, type, evalName, frameId, value).GetValue (default (ObjectPath), null);
}
public ObjectValue [] GetLocalVariables (int frameIndex, EvaluationOptions options)
{
List<ObjectValue> results = new List<ObjectValue> ();
var scopeBody = vsCodeDebuggerSession.protocolClient.SendRequestSync (new ScopesRequest (frames [frameIndex].Id));
foreach (var variablesGroup in scopeBody.Scopes) {
using (var timer = vsCodeDebuggerSession.EvaluationStats.StartTimer ()) {
var varibles = vsCodeDebuggerSession.protocolClient.SendRequestSync (new VariablesRequest (variablesGroup.VariablesReference));
foreach (var variable in varibles.Variables) {
results.Add (ObjectValue.CreatePrimitive (null, new ObjectPath (variable.Name), variable.Type ?? "<unknown>", new EvaluationResult (variable.Value), ObjectValueFlags.None));
}
timer.Success = true;
}
}
return results.ToArray ();
}
public ObjectValue [] GetParameters (int frameIndex, EvaluationOptions options)
{
return new ObjectValue [0];//TODO: Find out how to seperate Params from other Locals
}
public Mono.Debugging.Client.StackFrame [] GetStackFrames (int firstIndex, int lastIndex)
{
//Optimisation for getting 1st frame of thread(used for ThreadPad)
if (firstIndex == 0 && lastIndex == 1 && totalFramesCount > 0) {
return new Mono.Debugging.Client.StackFrame [] { new VsCodeStackFrame (frame0Format, threadId, 0, frames [0]) };
}
var stackFrames = new Mono.Debugging.Client.StackFrame [Math.Min (lastIndex - firstIndex, totalFramesCount - firstIndex)];
var format = VsCodeStackFrame.GetStackFrameFormat (vsCodeDebuggerSession.EvaluationOptions);
var body = vsCodeDebuggerSession.protocolClient.SendRequestSync (new StackTraceRequest (threadId, firstIndex, stackFrames.Length, format));
for (int i = 0; i < stackFrames.Length; i++) {
frames [i + firstIndex] = body.StackFrames [i];
stackFrames [i] = new VsCodeStackFrame (format, threadId, i, body.StackFrames [i]);
}
return stackFrames;
}
public ObjectValue GetThisReference (int frameIndex, EvaluationOptions options)
{
return GetAllLocals (frameIndex, options).FirstOrDefault (l => l.Name == "this");
}
public ValidationResult ValidateExpression (int frameIndex, string expression, EvaluationOptions options)
{
return new ValidationResult (true, null);
}
}
}
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