/// <summary>
/// Returns the value of one or more local variables in a given frame. Each variable must be visible at the frame's code index.
/// Even if local variable information is not available, values can be retrieved if the front-end is able to determine the correct
/// local variable index. (Typically, this index can be determined for method arguments from the method signature without access to
/// the local variable table information.)
/// </summary>
public Task <List <Value> > GetValuesAsync(ThreadId threadId, FrameId frameId, SlotRequest[] slots)
{
var conn = ConnectionOrError;
DLog.Debug(DContext.DebuggerLibCommands, () => string.Format("StackFrame.GetValues {0}", string.Join(", ", slots.Select(x => x.ToString()))));
var t = conn.SendAsync(JdwpPacket.CreateCommand(conn, Nr, 1, threadId.Size + frameId.Size + 4 + (slots.Length * 5),
x => {
var data = x.Data;
threadId.WriteTo(data);
frameId.WriteTo(data);
data.SetInt(slots.Length);
foreach (var slot in slots)
{
data.SetInt(slot.Slot);
data.SetByte((byte)slot.Tag);
}
}));
return(t.ContinueWith(x => {
x.ForwardException();
var result = x.Result;
result.ThrowOnError();
var data = result.Data;
var count = data.GetInt();
var list = new List <Value>(count);
for (var i = 0; i < count; i++)
{
var value = new Value(data);
list.Add(value);
}
return list;
}));
}
/// <summary>
// Sets the value of one or more local variables. Each variable must be visible at the current frame code index.
// For primitive values, the value's type must match the variable's type exactly. For object values, there must
// be a widening reference conversion from the value's type to the variable's type and the variable's type must
// be loaded.
// Even if local variable information is not available, values can be set, if the front-end is able to determine
// the correct local variable index. (Typically, this index can be determined for method arguments from the
// method signature without access to the local variable table information.)
/// </summary>
public Task SetValuesAsync(ThreadId threadId, FrameId frameId, params SlotValue[] slotValues)
{
var conn = ConnectionOrError;
DLog.Debug(DContext.DebuggerLibCommands, () => string.Format("StackFrame.SetValues {0}", string.Join(", ", slotValues.Select(x => x.ToString()))));
var t = conn.SendAsync(JdwpPacket.CreateCommand(conn, Nr, 2, 4000 /* we don't know how long the packet is going to be... */,
x =>
{
var data = x.Data;
threadId.WriteTo(data);
frameId.WriteTo(data);
data.SetInt(slotValues.Length);
foreach (var value in slotValues)
{
value.Write(data);
}
x.Length = data.Offset;
}));
return(t.ContinueWith(x =>
{
x.ForwardException();
var result = x.Result;
result.ThrowOnError();
}));
}
/// <summary>
/// Gets the current call stack of the thread with given id.
/// </summary>
public Task <List <Tuple <FrameId, Location> > > FramesAsync(ThreadId id, int length = -1)
{
var conn = ConnectionOrError;
var sizeInfo = conn.GetIdSizeInfo();
var t = conn.SendAsync(JdwpPacket.CreateCommand(conn, Nr, 6, sizeInfo.ObjectIdSize + 8,
x => {
id.WriteTo(x.Data);
x.Data.SetInt(0); // start frame
x.Data.SetInt(length); // length -1 == all
}));
return(t.ContinueWith(x => {
x.ForwardException();
var result = x.Result;
result.ThrowOnError();
var count = result.Data.GetInt();
var list = new List <Tuple <FrameId, Location> >(count);
for (var i = 0; i < count; i++)
{
var frame = new FrameId(result.Data, sizeInfo);
var location = new Location(result.Data);
list.Add(Tuple.Create(frame, location));
}
return list;
}));
}
/// <summary>
/// Returns the value of one or more local variables in a given frame. Each variable must be visible at the frame's code index.
/// Even if local variable information is not available, values can be retrieved if the front-end is able to determine the correct
/// local variable index. (Typically, this index can be determined for method arguments from the method signature without access to
/// the local variable table information.)
/// </summary>
public Task <List <Value> > GetValuesAsync(ThreadId threadId, FrameId frameId, SlotRequest[] slots)
{
var conn = ConnectionOrError;
DLog.Debug(DContext.DebuggerLibCommands, () => string.Format("StackFrame.GetValues {0}", string.Join(", ", slots.Select(x => x.ToString()))));
var t = conn.SendAsync(JdwpPacket.CreateCommand(conn, Nr, 1, threadId.Size + frameId.Size + 4 + (slots.Length * 5),
x => {
var data = x.Data;
threadId.WriteTo(data);
frameId.WriteTo(data);
data.SetInt(slots.Length);
foreach (var slot in slots)
{
if (slot.Slot == 1000)
{
// I have seen this crash the VM on a CyanogenMod Android 4.4.4
// Samsung GT-I9195. Might be a bug in CyanogenMod.
// https://android.googlesource.com/platform/art/+/ffcd9d25199a944625bd3c9a766349c23dcbdb66/runtime/debugger.cc
DLog.Debug(DContext.DebuggerLibEvent, "accessing variable with Slot=1000");
}
data.SetInt(slot.Slot);
data.SetByte((byte)slot.Tag);
}
}));
return(t.ContinueWith(x => {
x.ForwardException();
var result = x.Result;
result.ThrowOnError();
var data = result.Data;
var count = data.GetInt();
var list = new List <Value>(count);
for (var i = 0; i < count; i++)
{
var value = new Value(data);
list.Add(value);
}
return list;
}));
}
