private async Task<Protocol.Message> DispatchAsync(Protocol.Message message, CancellationToken cancellationToken)
{
if (message is Protocol.Request<Protocol.Initialize> initialize)
{
var body = MakeCapabilities();
var response = Protocol.Response.From(NextSeq, initialize, body);
await SendAsync(response, cancellationToken).ConfigureAwait(false);
return Protocol.Event.From(NextSeq, "initialized", new { });
}
else if (message is Protocol.Request<Protocol.Launch> launch)
{
return Protocol.Response.From(NextSeq, launch, new { });
}
else if (message is Protocol.Request<Protocol.Attach> attach)
{
return Protocol.Response.From(NextSeq, attach, new { });
}
else if (message is Protocol.Request<Protocol.SetBreakpoints> setBreakpoints)
{
var arguments = setBreakpoints.Arguments;
var file = Path.GetFileName(arguments.Source.Path);
await OutputAsync($"Set breakpoints for {file}", null, cancellationToken).ConfigureAwait(false);
var breakpoints = this.breakpoints.SetBreakpoints(arguments.Source, arguments.Breakpoints);
foreach (var breakpoint in breakpoints)
{
if (breakpoint.Verified)
{
var item = this.breakpoints.ItemFor(breakpoint);
await OutputAsync($"Set breakpoint at {codeModel.NameFor(item)}", item, cancellationToken).ConfigureAwait(false);
}
}
return Protocol.Response.From(NextSeq, setBreakpoints, new { breakpoints });
}
else if (message is Protocol.Request<Protocol.SetFunctionBreakpoints> setFunctionBreakpoints)
{
var arguments = setFunctionBreakpoints.Arguments;
await OutputAsync($"Set function breakpoints.", null, cancellationToken).ConfigureAwait(false);
var breakpoints = this.breakpoints.SetBreakpoints(arguments.Breakpoints);
foreach (var breakpoint in breakpoints)
{
if (breakpoint.Verified)
{
var item = this.breakpoints.ItemFor(breakpoint);
await OutputAsync($"Set breakpoint at {codeModel.NameFor(item)}", item, cancellationToken).ConfigureAwait(false);
}
}
return Protocol.Response.From(NextSeq, setFunctionBreakpoints, new { breakpoints });
}
else if (message is Protocol.Request<Protocol.SetExceptionBreakpoints> setExceptionBreakpoints)
{
var arguments = setExceptionBreakpoints.Arguments;
this.events.Reset(arguments.Filters);
return Protocol.Response.From(NextSeq, setExceptionBreakpoints, new { });
}
else if (message is Protocol.Request<Protocol.Threads> threads)
{
var body = new
{
threads = this.threads.Select(t => new { id = t.Key, name = t.Value.Name }).ToArray()
};
return Protocol.Response.From(NextSeq, threads, body);
}
else if (message is Protocol.Request<Protocol.StackTrace> stackTrace)
{
var arguments = stackTrace.Arguments;
var thread = this.threads[arguments.ThreadId];
var frames = thread.Frames;
var stackFrames = new List<Protocol.StackFrame>();
foreach (var frame in frames)
{
var stackFrame = new Protocol.StackFrame()
{
Id = EncodeFrame(thread, frame),
Name = frame.Name
};
if (this.sourceMap.TryGetValue(frame.Item, out var range))
{
DebuggerSourceMap.Assign(stackFrame, range);
}
stackFrames.Add(stackFrame);
}
return Protocol.Response.From(NextSeq, stackTrace, new { stackFrames });
}
else if (message is Protocol.Request<Protocol.Scopes> scopes)
{
var arguments = scopes.Arguments;
DecodeFrame(arguments.FrameId, out var thread, out var frame);
const bool expensive = false;
var body = new
{
scopes = new[]
{
new { expensive, name = frame.Name, variablesReference = EncodeValue(thread, frame.Data) }
}
};
return Protocol.Response.From(NextSeq, scopes, body);
}
else if (message is Protocol.Request<Protocol.Variables> vars)
{
var arguments = vars.Arguments;
DecodeValue(arguments.VariablesReference, out var thread, out var context);
var names = this.dataModel.Names(context);
var body = new
{
variables = (from name in names
let value = dataModel[context, name]
let variablesReference = EncodeValue(thread, value)
select new { name = dataModel.ToString(name), value = dataModel.ToString(value), variablesReference })
.ToArray()
};
return Protocol.Response.From(NextSeq, vars, body);
}
else if (message is Protocol.Request<Protocol.SetVariable> setVariable)
{
var arguments = setVariable.Arguments;
DecodeValue(arguments.VariablesReference, out var thread, out var context);
var value = this.dataModel[context, arguments.Name] = JToken.Parse(arguments.Value);
var body = new
{
value = dataModel.ToString(value),
variablesReference = EncodeValue(thread, value)
};
return Protocol.Response.From(NextSeq, setVariable, body);
}
else if (message is Protocol.Request<Protocol.Evaluate> evaluate)
{
var arguments = evaluate.Arguments;
DecodeFrame(arguments.FrameId, out var thread, out var frame);
var expression = arguments.Expression.Trim('"');
var result = frame.Evaluate(expression);
if (result != null)
{
var body = new
{
result = dataModel.ToString(result),
variablesReference = EncodeValue(thread, result),
};
return Protocol.Response.From(NextSeq, evaluate, body);
}
else
{
return Protocol.Response.Fail(NextSeq, evaluate, string.Empty);
}
}
else if (message is Protocol.Request<Protocol.Continue> cont)
{
bool found = this.threads.TryGetValue(cont.Arguments.ThreadId, out var thread);
if (found)
{
thread.Run.Post(Phase.Continue);
}
return Protocol.Response.From(NextSeq, cont, new { allThreadsContinued = false });
}
else if (message is Protocol.Request<Protocol.Pause> pause)
{
bool found = this.threads.TryGetValue(pause.Arguments.ThreadId, out var thread);
if (found)
{
thread.Run.Post(Phase.Pause);
}
return Protocol.Response.From(NextSeq, pause, new { });
}
else if (message is Protocol.Request<Protocol.Next> next)
{
bool found = this.threads.TryGetValue(next.Arguments.ThreadId, out var thread);
if (found)
{
thread.Run.Post(Phase.Next);
}
return Protocol.Response.From(NextSeq, next, new { });
}
else if (message is Protocol.Request<Protocol.Terminate> terminate)
{
if (this.terminate != null)
{
this.terminate();
}
return Protocol.Response.From(NextSeq, terminate, new { });
}
else if (message is Protocol.Request<Protocol.Disconnect> disconnect)
{
var arguments = disconnect.Arguments;
if (arguments.TerminateDebuggee && this.terminate != null)
{
this.terminate();
}
// if attach, possibly run all threads
return Protocol.Response.From(NextSeq, disconnect, new { });
}
else if (message is Protocol.Request request)
{
return Protocol.Response.From(NextSeq, request, new { });
}
else if (message is Protocol.Event @event)
{
throw new NotImplementedException();
}
else
{
throw new NotImplementedException();
}
}
private async Task <Message> DispatchAsync(Message message, CancellationToken cancellationToken)
{
if (message is Request request)
{
if (message is Request <Initialize> initialize)
{
var body = MakeCapabilities();
var response = Response.From(NextSeq, initialize, body);
await SendAsync(response, cancellationToken).ConfigureAwait(false);
return(Event.From(NextSeq, "initialized", new { }));
}
if (message is Request <Launch> launch)
{
_options = launch.Arguments;
return(Response.From(NextSeq, launch, new { }));
}
if (message is Request <Attach> attach)
{
_options = attach.Arguments;
return(Response.From(NextSeq, attach, new { }));
}
if (message is Request <SetBreakpoints> setBreakpoints)
{
var arguments = setBreakpoints.Arguments;
var file = Path.GetFileName(arguments.Source.Path);
await OutputAsync($"Set breakpoints for {file}", null, null, cancellationToken).ConfigureAwait(false);
var breakpoints = _breakpoints.SetBreakpoints(arguments.Source, arguments.Breakpoints);
foreach (var breakpoint in breakpoints)
{
if (breakpoint.Verified)
{
var item = _breakpoints.ItemFor(breakpoint);
await OutputAsync($"Set breakpoint at {_codeModel.NameFor(item)}", item, null, cancellationToken).ConfigureAwait(false);
}
}
return(Response.From(NextSeq, setBreakpoints, new { breakpoints }));
}
if (message is Request <SetFunctionBreakpoints> setFunctionBreakpoints)
{
var arguments = setFunctionBreakpoints.Arguments;
await OutputAsync("Set function breakpoints.", null, null, cancellationToken).ConfigureAwait(false);
var breakpoints = _breakpoints.SetBreakpoints(arguments.Breakpoints);
foreach (var breakpoint in breakpoints)
{
if (breakpoint.Verified)
{
var item = _breakpoints.ItemFor(breakpoint);
await OutputAsync($"Set breakpoint at {_codeModel.NameFor(item)}", item, null, cancellationToken).ConfigureAwait(false);
}
}
return(Response.From(NextSeq, setFunctionBreakpoints, new { breakpoints }));
}
if (message is Request <SetExceptionBreakpoints> setExceptionBreakpoints)
{
var arguments = setExceptionBreakpoints.Arguments;
_events.Reset(arguments.Filters);
return(Response.From(NextSeq, setExceptionBreakpoints, new { }));
}
if (message is Request <Threads> threads)
{
var body = new
{
threads = _threads.Select(t => new
{
id = t.Key,
name = t.Value.Name
}).ToArray()
};
return(Response.From(NextSeq, threads, body));
}
if (message is Request <StackTrace> stackTrace)
{
var arguments = stackTrace.Arguments;
var thread = _threads[arguments.ThreadId];
var frames = thread.Frames;
var stackFrames = new List <StackFrame>();
foreach (var frame in frames)
{
var stackFrame = new StackFrame
{
Id = EncodeFrame(thread, frame),
Name = frame.Name
};
var item = _codeModel.NameFor(frame.Item);
DebuggerSourceMap.Assign(stackFrame, item, frame.More);
if (_sourceMap.TryGetValue(frame.Item, out var range))
{
DebuggerSourceMap.Assign(stackFrame, range);
}
stackFrames.Add(stackFrame);
}
return(Response.From(NextSeq, stackTrace, new { stackFrames }));
}
if (message is Request <Scopes> scopes)
{
var arguments = scopes.Arguments;
DecodeFrame(arguments.FrameId, out var thread, out var frame);
const bool expensive = false;
var body = new
{
scopes = new[]
{
new
{
expensive,
name = frame.Name,
variablesReference = EncodeValue(thread, frame.Data)
}
}
};
return(Response.From(NextSeq, scopes, body));
}
if (message is Request <Variables> vars)
{
var arguments = vars.Arguments;
DecodeValue(arguments.VariablesReference, out var arena, out var context);
var names = _dataModel.Names(context);
var body = new
{
variables = (from name in names
let value = _dataModel[context, name]
let variablesReference = EncodeValue(arena, value)
select new
{
name = _dataModel.ToString(name),
value = _dataModel.ToString(value),
variablesReference
})
.ToArray()
};
return(Response.From(NextSeq, vars, body));
}
if (message is Request <SetVariable> setVariable)
{
var arguments = setVariable.Arguments;
DecodeValue(arguments.VariablesReference, out var arena, out var context);
var value = _dataModel[context, arguments.Name] = JToken.Parse(arguments.Value);
var body = new
{
value = _dataModel.ToString(value),
variablesReference = EncodeValue(arena, value)
};
return(Response.From(NextSeq, setVariable, body));
}
if (message is Request <Evaluate> evaluate)
{
var arguments = evaluate.Arguments;
DecodeFrame(arguments.FrameId, out var thread, out var frame);
var expression = arguments.Expression.Trim('"');
try
{
var result = frame.Evaluate(expression);
var body = new
{
result = _dataModel.ToString(result),
variablesReference = EncodeValue(thread, result),
};
return(Response.From(NextSeq, evaluate, body));
}
#pragma warning disable CA1031 // Do not catch general exception types (catch any exception and return it)
catch (Exception ex)
#pragma warning restore CA1031 // Do not catch general exception types
{
return(Response.Fail(NextSeq, evaluate, ex.Message));
}
}
Response Post <TBody>(PerThread perThread, Phase phase, TBody body)
{
// "constructing the response" and "posting to the thread" have side-effects
// for extra determinism, construct the response before signaling the thread
var response = Response.From(NextSeq, request, body);
var found = _threads.TryGetValue(perThread.ThreadId, out var thread);
if (found)
{
thread.Run.Post(phase);
}
return(response);
}
if (message is Request <Continue> cont)
{
return(Post(cont.Arguments, Phase.Continue, new { allThreadsContinued = false }));
}
if (message is Request <Pause> pause)
{
return(Post(pause.Arguments, Phase.Pause, new { }));
}
if (message is Request <Next> next)
{
return(Post(next.Arguments, Phase.Next, new { }));
}
if (message is Request <Terminate> terminate)
{
if (_terminate != null)
{
_terminate();
}
return(Response.From(NextSeq, terminate, new { }));
}
if (message is Request <Disconnect> disconnect)
{
var arguments = disconnect.Arguments;
if (arguments.TerminateDebuggee && _terminate != null)
{
_terminate();
}
else
{
ResetOnDisconnect();
}
return(Response.From(NextSeq, disconnect, new { }));
}
return(Response.From(NextSeq, request, new { }));
}
if (message is Event @event)
{
throw new NotImplementedException();
}
throw new NotImplementedException();
}