internal ExpressionBreakpoint(DebuggerSession session, ThreadGroup group,
LocationType type, string expression)
: base(EventType.Breakpoint, expression, group)
{
this.Session = session;
this.LocationType = type;
}
internal SourceBreakpoint(DebuggerSession session, int index, ThreadGroup group,
SourceLocation location)
: base(EventType.Breakpoint, index, location.Name, group)
{
this.session = session;
this.location = location;
}
protected Event(EventType type, int index, string name, ThreadGroup group)
{
this.type = type;
this.index = index;
this.name = name;
this.group = group;
this.UniqueID = GetNextEventIndex ();
if (group == null)
throw new NullReferenceException ();
}
protected Event(EventType type, string name, ThreadGroup group)
: this(type, GetNextEventIndex(), name, group)
{
}
internal ExceptionCatchPoint(int index, ThreadGroup group, string name, bool unhandled)
: base(EventType.CatchException, index, name, group)
{
this.Unhandled = unhandled;
}
internal ExceptionCatchPoint(ThreadGroup group, TargetType exception, bool unhandled)
: base(EventType.CatchException, exception.Name, group)
{
this.exception = exception;
this.Unhandled = unhandled;
}
protected Event(EventType type, string name, ThreadGroup group)
: this(type, GetNextEventIndex (), name, group)
{
}
internal AddressBreakpoint(string name, ThreadGroup group, TargetAddress address)
: base(EventType.Breakpoint, name, group)
{
this.address = address;
}
public Event InsertExceptionCatchPoint(Thread target, ThreadGroup group,
TargetType exception)
{
return(InsertExceptionCatchPoint(target, group, exception, false));
}
internal ExceptionCatchPoint(ThreadGroup group, TargetType exception, bool unhandled)
: base(EventType.CatchException, exception.Name, group)
{
this.exception = exception;
this.Unhandled = unhandled;
}
public Event InsertExceptionCatchPoint(Thread target, ThreadGroup group,
TargetType exception, bool unhandled)
{
Event handle = new ExceptionCatchPoint (group, exception, unhandled);
AddEvent (handle);
return handle;
}
public Event InsertExceptionCatchPoint(Thread target, ThreadGroup group,
TargetType exception)
{
return InsertExceptionCatchPoint (target, group, exception, false);
}
public Event InsertBreakpoint(Thread target, ThreadGroup group,
TargetAddress address)
{
Event handle = new AddressBreakpoint (address.ToString (), group, address);
handle.Activate (target);
AddEvent (handle);
return handle;
}
public Event InsertBreakpoint(ThreadGroup group, LocationType type, string name)
{
Breakpoint bpt = new ExpressionBreakpoint (this, group, type, name);
AddEvent (bpt);
return bpt;
}
//
// Breakpoints
//
public Event InsertBreakpoint(ThreadGroup group, SourceLocation location)
{
Breakpoint bpt = new SourceBreakpoint (this, group, location);
AddEvent (bpt);
return bpt;
}
private DebuggerSession(DebuggerConfiguration config, string name)
{
this.Config = config;
this.Name = name;
modules = Hashtable.Synchronized (new Hashtable ());
displays = Hashtable.Synchronized (new Hashtable ());
thread_groups = Hashtable.Synchronized (new Hashtable ());
main_thread_group = CreateThreadGroup ("main");
directory_maps = new Dictionary<string,string> ();
user_module_paths = new List<string> ();
user_modules = new List<string> ();
exception_catchpoints = new Dictionary<int,ExceptionCatchPoint> ();
events = new Dictionary<int,Event> ();
pending_bpts = new Dictionary<Breakpoint,BreakpointHandle.Action> ();
}
protected override bool DoResolve(ScriptingContext context)
{
if (global) {
if (local)
throw new ScriptingException (
"Cannot use both -local and -global.");
if (Group != null)
throw new ScriptingException (
"Cannot use both -group and -global.");
tgroup = ThreadGroup.Global;
} else if (local) {
if (Group != null)
throw new ScriptingException (
"Cannot use both -group and -local.");
tgroup = context.Interpreter.GetThreadGroup (Group, false);
} else if (Group != null) {
tgroup = context.Interpreter.GetThreadGroup (Group, false);
} else {
tgroup = ThreadGroup.Global;
}
if (context.Interpreter.HasTarget) {
context.CurrentProcess = context.Interpreter.GetProcess (p_index);
context.CurrentThread = context.Interpreter.GetThread (t_index);
}
if (!gui && !lazy && context.Interpreter.HasTarget) {
Thread thread = context.CurrentThread;
if (!thread.IsStopped)
throw new TargetException (TargetError.NotStopped);
Backtrace backtrace = thread.GetBacktrace ();
StackFrame frame;
if (f_index == -1)
frame = backtrace.CurrentFrame;
else {
if (f_index >= backtrace.Count)
throw new ScriptingException (
"No such frame: {0}", f_index);
frame = backtrace [f_index];
}
context.CurrentFrame = frame;
if (context.Interpreter.ExpressionParser.ParseLocation (context, Argument, out location))
return true;
}
uint line;
int pos = Argument.IndexOf (':');
if (pos == 0)
throw new ScriptingException ("Invalid breakpoint expression");
else if (pos > 0) {
string tmp = Argument.Substring (pos+1);
if (!UInt32.TryParse (tmp, out line))
throw new ScriptingException ("Invalid breakpoint expression");
return true;
}
if (UInt32.TryParse (Argument, out line)) {
if (!context.Interpreter.HasTarget)
throw new ScriptingException ("Cannot insert breakpoint by line: no current source file.");
return true;
}
Expression expr = context.ParseExpression (Argument);
if (expr is PointerExpression) {
address = ((PointerExpression) expr).EvaluateAddress (context);
return true;
}
if (!context.Interpreter.HasTarget)
return true;
MethodExpression mexpr;
try {
mexpr = expr.ResolveMethod (context, type);
} catch {
mexpr = null;
}
if (mexpr != null)
location = mexpr.EvaluateSource (context);
else {
location = context.FindMethod (Argument);
if (location != null)
return true;
address = context.CurrentProcess.LookupSymbol (Argument);
if (!address.IsNull)
return true;
}
if (lazy || gui)
return true;
if (location == null)
throw new ScriptingException ("No such method: `{0}'.", Argument);
return true;
}
protected Event ParseEvent(XPathNavigator navigator, int index, ThreadGroup group)
{
if (navigator.Name == "Location") {
SourceLocation location = new SourceLocation (this, navigator);
return new SourceBreakpoint (this, index, group, location);
} else if (navigator.Name == "Expression") {
string expression = navigator.GetAttribute ("expression", "");
LocationType type = (LocationType) Enum.Parse (
typeof (LocationType), navigator.GetAttribute ("type", ""));
return new ExpressionBreakpoint (this, index, group, type, expression);
} else if (navigator.Name == "Exception") {
string exc = navigator.GetAttribute ("type", "");
bool unhandled = Boolean.Parse (navigator.GetAttribute ("unhandled", ""));
return new ExceptionCatchPoint (index, group, exc, unhandled);
} else if (navigator.Name == "MainMethod") {
return new MainMethodBreakpoint (this);
} else
throw new InternalError ();
}
protected override bool DoResolve(ScriptingContext context)
{
Language language = CurrentFrame.Language;
if (CurrentFrame.Language == null)
throw new ScriptingException ("Current frame doesn't have a language.");
TargetType exception_type = language.ExceptionType;
if (exception_type == null)
throw new ScriptingException ("Current language doesn't have any exceptions.");
Expression expr = ParseExpression (context);
if (expr == null)
return false;
expr = expr.ResolveType (context);
if (expr == null)
return false;
type = expr.EvaluateType (context) as TargetClassType;
if (!language.IsExceptionType (type))
throw new ScriptingException ("Type `{0}' is not an exception type.", expr.Name);
if (tgroup == null)
tgroup = context.Interpreter.GetThreadGroup (Group, false);
return true;
}
void AddThreadGroup(XmlElement root, ThreadGroup group)
{
XmlElement element = root.OwnerDocument.CreateElement ("ThreadGroup");
element.SetAttribute ("name", group.Name);
root.AppendChild (element);
}
internal ExceptionCatchPoint(int index, ThreadGroup group, string name, bool unhandled)
: base(EventType.CatchException, index, name, group)
{
this.Unhandled = unhandled;
}
internal AddressBreakpoint(string name, ThreadGroup group, TargetAddress address)
: base(EventType.Breakpoint, name, group)
{
this.address = address;
}
protected Breakpoint(EventType type, int index, string name, ThreadGroup group)
: base(type, index, name, group)
{
}
protected Breakpoint(EventType type, int index, string name, ThreadGroup group)
: base(type, index, name, group)
{
}
public int InsertExceptionCatchPoint(Thread target, ThreadGroup group,
TargetType exception, bool unhandled)
{
Event handle = target.Process.Session.InsertExceptionCatchPoint (
target, group, exception, unhandled);
return handle.Index;
}
protected override bool DoResolve(ScriptingContext context)
{
// set whole method in a try-catch block: if anything goes wrong, an invalid breakpoint
// number is set and the semaphore is released.
try {
if (global) {
if (local)
throw new ScriptingException (
"Cannot use both -local and -global.");
if (Group != null)
throw new ScriptingException (
"Cannot use both -group and -global.");
tgroup = ThreadGroup.Global;
} else if (local) {
if (Group != null)
throw new ScriptingException (
"Cannot use both -group and -local.");
tgroup = context.Interpreter.GetThreadGroup (Group, false);
} else if (Group != null) {
tgroup = context.Interpreter.GetThreadGroup (Group, false);
} else {
tgroup = ThreadGroup.Global;
}
if (context.Interpreter.HasTarget) {
context.CurrentProcess = context.Interpreter.GetProcess (p_index);
context.CurrentThread = context.Interpreter.GetThread (t_index);
Mono.Debugger.Thread thread = context.CurrentThread;
if (!thread.IsStopped)
throw new Mono.Debugger.TargetException (TargetError.NotStopped);
Backtrace backtrace = thread.GetBacktrace ();
StackFrame frame;
if (f_index == -1)
frame = backtrace.CurrentFrame;
else {
if (f_index >= backtrace.Count)
throw new ScriptingException (
"No such frame: {0}", f_index);
frame = backtrace [f_index];
}
context.CurrentFrame = frame;
if (ExpressionParser.ParseLocation (
thread, thread.CurrentFrame, Argument, out location))
return true;
}
if (Argument.IndexOf (':') > 0)
return true;
try {
UInt32.Parse (Argument);
return true;
} catch {
}
Expression expr = context.Interpreter.ExpressionParser.Parse (Argument);
if (expr == null)
throw new ScriptingException ("Cannot resolve expression `{0}'.", Argument);
if (expr is PointerExpression) {
address = ((PointerExpression) expr).EvaluateAddress (context);
return true;
}
if (!context.Interpreter.HasTarget)
return true;
MethodExpression mexpr;
try {
mexpr = expr.ResolveMethod (context, type);
} catch {
if (lazy)
return true;
throw new ScriptingException ("No such method: `{0}'.", Argument);
}
if (mexpr != null)
location = mexpr.EvaluateSource (context);
else
location = context.FindMethod (Argument);
if (lazy)
return true;
if (location == null)
throw new ScriptingException ("No such method: `{0}'.", Argument);
return true;
} catch {
EmonicInterpreter.breakpointNumber = -1;
EmonicInterpreter.breakpointSem.Release();
throw;
}
}
