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using System;
using System.Runtime.Serialization;
namespace Mono.Debugger
{
#region Keep in sync with ServerCommandError in backends/server/server.h
[Serializable]
public enum TargetError {
None = 0,
UnknownError = 1,
InternalError,
NoTarget,
AlreadyHaveTarget,
CannotStartTarget,
NotStopped,
AlreadyStopped,
RecursiveCall,
NoSuchBreakpoint,
NoSuchRegister,
DebugRegisterOccupied,
MemoryAccess,
NotImplemented,
IOError,
NoCallbackFrame,
NoStack = 101,
NoMethod,
MethodNotLoaded,
ClassNotInitialized,
AlreadyHaveBreakpoint,
SymbolTable,
InvocationException,
LocationInvalid,
CannotDetach
}
#endregion
[Serializable]
public class TargetException : Exception, ISerializable
{
public readonly TargetError Type;
public TargetException (TargetError type, string message)
: base (message)
{
this.Type = type;
}
public TargetException (TargetError type, string format,
params object[] args)
: this (type, String.Format (format, args))
{ }
public TargetException (TargetError type)
: this (type, GetMessage (type))
{ }
protected static string GetMessage (TargetError type)
{
switch (type) {
case TargetError.UnknownError:
return "Unknown error.";
case TargetError.NoTarget:
return "No target.";
case TargetError.AlreadyHaveTarget:
return "Already have a program to debug.";
case TargetError.CannotStartTarget:
return "Cannot start target.";
case TargetError.NotStopped:
return "The target is currently running, but it must be " +
"stopped to perform the requested operation.";
case TargetError.AlreadyStopped:
return "The target is already stopped.";
case TargetError.RecursiveCall:
return "Internal error: recursive call";
case TargetError.NoSuchBreakpoint:
return "No such breakpoint.";
case TargetError.NoSuchRegister:
return "No such register.";
case TargetError.DebugRegisterOccupied:
return "Cannot insert hardware breakpoint/watchpoint: " +
"all debugging registers are already occupied.";
case TargetError.MemoryAccess:
return "Memory access.";
case TargetError.NotImplemented:
return "Requested feature not implemented on this platform.";
case TargetError.IOError:
return "Unknown I/O error.";
case TargetError.NoStack:
return "No stack.";
case TargetError.NoMethod:
return "Cannot get bounds of current method.";
case TargetError.MethodNotLoaded:
return "Method not loaded.";
case TargetError.ClassNotInitialized:
return "Class not initialized.";
case TargetError.AlreadyHaveBreakpoint:
return "Already have a breakpoint at this location.";
case TargetError.SymbolTable:
return "Symbol table error.";
case TargetError.InvocationException:
return "Error while invoking a method in the target.";
case TargetError.LocationInvalid:
return "Location is invalid.";
case TargetError.CannotDetach:
return "Cannot detach from this target because we did not " +
"attach to it.";
default:
return "Unknown error";
}
}
protected TargetException (SerializationInfo info, StreamingContext context)
: base (info, context)
{
Type = (TargetError) info.GetValue ("Type", typeof (TargetError));
}
public override void GetObjectData (SerializationInfo info, StreamingContext context)
{
info.AddValue ("Type", Type);
base.GetObjectData (info, context);
}
}
[Serializable]
public class LocationInvalidException : TargetException
{
public LocationInvalidException ()
: this ("Location is invalid.")
{ }
public LocationInvalidException (string message)
: base (TargetError.LocationInvalid, message)
{ }
public LocationInvalidException (TargetException ex)
: this (GetExceptionText (ex))
{ }
protected static string GetExceptionText (TargetException ex)
{
if ((ex is TargetMemoryException) || (ex is LocationInvalidException))
return ex.Message;
else
return String.Format ("{0}: {1}", ex.GetType ().Name, ex.Message);
}
protected LocationInvalidException (SerializationInfo info, StreamingContext context)
: base (info, context)
{
}
public override void GetObjectData (SerializationInfo info, StreamingContext context)
{
base.GetObjectData (info, context);
}
}
}
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