MLPY/Lib/site-packages/pythonwin/pywin/debugger/debugger.py

# debugger.py

# A debugger for Pythonwin.  Built from pdb.

# Mark Hammond ([email protected]) - Dec 94.

# usage:
# >>> import pywin.debugger
# >>> pywin.debugger.GetDebugger().run("command")

import bdb
import os
import pdb
import string
import sys
import traceback
import types

import commctrl
import pywin.docking.DockingBar
import win32api
import win32con
import win32ui
from pywin.framework import app, editor, interact, scriptutils
from pywin.framework.editor.color.coloreditor import MARKER_BREAKPOINT, MARKER_CURRENT
from pywin.mfc import afxres, dialog, object, window
from pywin.tools import browser, hierlist

# import win32traceutil
if win32ui.UNICODE:
    LVN_ENDLABELEDIT = commctrl.LVN_ENDLABELEDITW
else:
    LVN_ENDLABELEDIT = commctrl.LVN_ENDLABELEDITA

from .dbgcon import *

error = "pywin.debugger.error"


def SetInteractiveContext(globs, locs):
    if interact.edit is not None and interact.edit.currentView is not None:
        interact.edit.currentView.SetContext(globs, locs)


def _LineStateToMarker(ls):
    if ls == LINESTATE_CURRENT:
        return MARKER_CURRENT
    # 	elif ls == LINESTATE_CALLSTACK:
    # 		return MARKER_CALLSTACK
    return MARKER_BREAKPOINT


class HierListItem(browser.HLIPythonObject):
    pass


class HierFrameItem(HierListItem):
    def __init__(self, frame, debugger):
        HierListItem.__init__(self, frame, repr(frame))
        self.debugger = debugger

    def GetText(self):
        name = self.myobject.f_code.co_name
        if not name or name == "?":
            # See if locals has a '__name__' (ie, a module)
            if "__name__" in self.myobject.f_locals:
                name = str(self.myobject.f_locals["__name__"]) + " module"
            else:
                name = "<Debugger Context>"

        return "%s   (%s:%d)" % (
            name,
            os.path.split(self.myobject.f_code.co_filename)[1],
            self.myobject.f_lineno,
        )

    def GetBitmapColumn(self):
        if self.debugger.curframe is self.myobject:
            return 7
        else:
            return 8

    def GetSubList(self):
        ret = []
        ret.append(HierFrameDict(self.myobject.f_locals, "Locals", 2))
        ret.append(HierFrameDict(self.myobject.f_globals, "Globals", 1))
        return ret

    def IsExpandable(self):
        return 1

    def TakeDefaultAction(self):
        # Set the default frame to be this frame.
        self.debugger.set_cur_frame(self.myobject)
        return 1


class HierFrameDict(browser.HLIDict):
    def __init__(self, dict, name, bitmapColumn):
        self.bitmapColumn = bitmapColumn
        browser.HLIDict.__init__(self, dict, name)

    def GetBitmapColumn(self):
        return self.bitmapColumn


class NoStackAvailableItem(HierListItem):
    def __init__(self, why):
        HierListItem.__init__(self, None, why)

    def IsExpandable(self):
        return 0

    def GetText(self):
        return self.name

    def GetBitmapColumn(self):
        return 8


class HierStackRoot(HierListItem):
    def __init__(self, debugger):
        HierListItem.__init__(self, debugger, None)
        self.last_stack = []

    ##	def __del__(self):
    ##		print "HierStackRoot dieing"
    def GetSubList(self):
        debugger = self.myobject
        # 		print self.debugger.stack, self.debugger.curframe
        ret = []
        if debugger.debuggerState == DBGSTATE_BREAK:
            stackUse = debugger.stack[:]
            stackUse.reverse()
            self.last_stack = []
            for frame, lineno in stackUse:
                self.last_stack.append((frame, lineno))
                if (
                    frame is debugger.userbotframe
                ):  # Dont bother showing frames below our bottom frame.
                    break
        for frame, lineno in self.last_stack:
            ret.append(HierFrameItem(frame, debugger))
        ##		elif debugger.debuggerState==DBGSTATE_NOT_DEBUGGING:
        ##			ret.append(NoStackAvailableItem('<nothing is being debugged>'))
        ##		else:
        ##			ret.append(NoStackAvailableItem('<stack not available while running>'))
        return ret

    def GetText(self):
        return "root item"

    def IsExpandable(self):
        return 1


class HierListDebugger(hierlist.HierListWithItems):
    """Hier List of stack frames, breakpoints, whatever"""

    def __init__(self):
        hierlist.HierListWithItems.__init__(
            self, None, win32ui.IDB_DEBUGGER_HIER, None, win32api.RGB(255, 0, 0)
        )

    def Setup(self, debugger):
        root = HierStackRoot(debugger)
        self.AcceptRoot(root)


# 	def Refresh(self):
# 		self.Setup()


class DebuggerWindow(window.Wnd):
    def __init__(self, ob):
        window.Wnd.__init__(self, ob)
        self.debugger = None

    def Init(self, debugger):
        self.debugger = debugger

    def GetDefRect(self):
        defRect = app.LoadWindowSize("Debugger Windows\\" + self.title)
        if defRect[2] - defRect[0] == 0:
            defRect = 0, 0, 150, 150
        return defRect

    def OnDestroy(self, msg):
        newSize = self.GetWindowPlacement()[4]
        pywin.framework.app.SaveWindowSize("Debugger Windows\\" + self.title, newSize)
        return window.Wnd.OnDestroy(self, msg)

    def OnKeyDown(self, msg):
        key = msg[2]
        if key in (13, 27, 32):
            return 1
        if key in (46, 8):  # delete/BS key
            self.DeleteSelected()
            return 0
        view = scriptutils.GetActiveView()
        try:
            firer = view.bindings.fire_key_event
        except AttributeError:
            firer = None
        if firer is not None:
            return firer(msg)
        else:
            return 1

    def DeleteSelected(self):
        win32api.MessageBeep()

    def EditSelected(self):
        win32api.MessageBeep()


class DebuggerStackWindow(DebuggerWindow):
    title = "Stack"

    def __init__(self):
        DebuggerWindow.__init__(self, win32ui.CreateTreeCtrl())
        self.list = HierListDebugger()
        self.listOK = 0

    def SaveState(self):
        self.list.DeleteAllItems()
        self.listOK = 0
        win32ui.WriteProfileVal(
            "Debugger Windows\\" + self.title, "Visible", self.IsWindowVisible()
        )

    def CreateWindow(self, parent):
        style = (
            win32con.WS_CHILD
            | win32con.WS_VISIBLE
            | win32con.WS_BORDER
            | commctrl.TVS_HASLINES
            | commctrl.TVS_LINESATROOT
            | commctrl.TVS_HASBUTTONS
        )
        self._obj_.CreateWindow(style, self.GetDefRect(), parent, win32ui.IDC_LIST1)
        self.HookMessage(self.OnKeyDown, win32con.WM_KEYDOWN)
        self.HookMessage(self.OnKeyDown, win32con.WM_SYSKEYDOWN)
        self.list.HierInit(parent, self)
        self.listOK = 0  # delayed setup
        # self.list.Setup()

    def RespondDebuggerState(self, state):
        assert self.debugger is not None, "Init not called"
        if not self.listOK:
            self.listOK = 1
            self.list.Setup(self.debugger)
        else:
            self.list.Refresh()

    def RespondDebuggerData(self):
        try:
            handle = self.GetChildItem(0)
        except win32ui.error:
            return  # No items
        while 1:
            item = self.list.ItemFromHandle(handle)
            col = self.list.GetBitmapColumn(item)
            selCol = self.list.GetSelectedBitmapColumn(item)
            if selCol is None:
                selCol = col
            if self.list.GetItemImage(handle) != (col, selCol):
                self.list.SetItemImage(handle, col, selCol)
            try:
                handle = self.GetNextSiblingItem(handle)
            except win32ui.error:
                break


class DebuggerListViewWindow(DebuggerWindow):
    def __init__(self):
        DebuggerWindow.__init__(self, win32ui.CreateListCtrl())

    def CreateWindow(self, parent):
        list = self
        style = (
            win32con.WS_CHILD
            | win32con.WS_VISIBLE
            | win32con.WS_BORDER
            | commctrl.LVS_EDITLABELS
            | commctrl.LVS_REPORT
        )
        self._obj_.CreateWindow(style, self.GetDefRect(), parent, win32ui.IDC_LIST1)
        self.HookMessage(self.OnKeyDown, win32con.WM_KEYDOWN)
        self.HookMessage(self.OnKeyDown, win32con.WM_SYSKEYDOWN)
        list = self
        title, width = self.columns[0]
        itemDetails = (commctrl.LVCFMT_LEFT, width, title, 0)
        list.InsertColumn(0, itemDetails)
        col = 1
        for title, width in self.columns[1:]:
            col = col + 1
            itemDetails = (commctrl.LVCFMT_LEFT, width, title, 0)
            list.InsertColumn(col, itemDetails)
        parent.HookNotify(self.OnListEndLabelEdit, LVN_ENDLABELEDIT)
        parent.HookNotify(self.OnItemRightClick, commctrl.NM_RCLICK)
        parent.HookNotify(self.OnItemDoubleClick, commctrl.NM_DBLCLK)

    def RespondDebuggerData(self):
        pass

    def RespondDebuggerState(self, state):
        pass

    def EditSelected(self):
        try:
            sel = self.GetNextItem(-1, commctrl.LVNI_SELECTED)
        except win32ui.error:
            return
        self.EditLabel(sel)

    def OnKeyDown(self, msg):
        key = msg[2]
        # If someone starts typing, they probably are trying to edit the text!
        if chr(key) in string.ascii_uppercase:
            self.EditSelected()
            return 0
        return DebuggerWindow.OnKeyDown(self, msg)

    def OnItemDoubleClick(self, notify_data, extra):
        self.EditSelected()

    def OnItemRightClick(self, notify_data, extra):
        # First select the item we right-clicked on.
        pt = self.ScreenToClient(win32api.GetCursorPos())
        flags, hItem, subitem = self.HitTest(pt)
        if hItem == -1 or commctrl.TVHT_ONITEM & flags == 0:
            return None
        self.SetItemState(hItem, commctrl.LVIS_SELECTED, commctrl.LVIS_SELECTED)

        menu = win32ui.CreatePopupMenu()
        menu.AppendMenu(win32con.MF_STRING | win32con.MF_ENABLED, 1000, "Edit item")
        menu.AppendMenu(win32con.MF_STRING | win32con.MF_ENABLED, 1001, "Delete item")
        dockbar = self.GetParent()
        if dockbar.IsFloating():
            hook_parent = win32ui.GetMainFrame()
        else:
            hook_parent = self.GetParentFrame()
        hook_parent.HookCommand(self.OnEditItem, 1000)
        hook_parent.HookCommand(self.OnDeleteItem, 1001)
        menu.TrackPopupMenu(win32api.GetCursorPos())  # track at mouse position.
        return None

    def OnDeleteItem(self, command, code):
        self.DeleteSelected()

    def OnEditItem(self, command, code):
        self.EditSelected()


class DebuggerBreakpointsWindow(DebuggerListViewWindow):
    title = "Breakpoints"
    columns = [("Condition", 70), ("Location", 1024)]

    def SaveState(self):
        items = []
        for i in range(self.GetItemCount()):
            items.append(self.GetItemText(i, 0))
            items.append(self.GetItemText(i, 1))
        win32ui.WriteProfileVal(
            "Debugger Windows\\" + self.title, "BreakpointList", "\t".join(items)
        )
        win32ui.WriteProfileVal(
            "Debugger Windows\\" + self.title, "Visible", self.IsWindowVisible()
        )
        return 1

    def OnListEndLabelEdit(self, std, extra):
        item = extra[0]
        text = item[4]
        if text is None:
            return

        item_id = self.GetItem(item[0])[6]

        from bdb import Breakpoint

        for bplist in Breakpoint.bplist.values():
            for bp in bplist:
                if id(bp) == item_id:
                    if text.strip().lower() == "none":
                        text = None
                    bp.cond = text
                    break
        self.RespondDebuggerData()

    def DeleteSelected(self):
        try:
            num = self.GetNextItem(-1, commctrl.LVNI_SELECTED)
            item_id = self.GetItem(num)[6]
            from bdb import Breakpoint

            for bplist in list(Breakpoint.bplist.values()):
                for bp in bplist:
                    if id(bp) == item_id:
                        self.debugger.clear_break(bp.file, bp.line)
                        break
        except win32ui.error:
            win32api.MessageBeep()
        self.RespondDebuggerData()

    def RespondDebuggerData(self):
        l = self
        l.DeleteAllItems()
        index = -1
        from bdb import Breakpoint

        for bplist in Breakpoint.bplist.values():
            for bp in bplist:
                baseName = os.path.split(bp.file)[1]
                cond = bp.cond
                item = index + 1, 0, 0, 0, str(cond), 0, id(bp)
                index = l.InsertItem(item)
                l.SetItemText(index, 1, "%s: %s" % (baseName, bp.line))


class DebuggerWatchWindow(DebuggerListViewWindow):
    title = "Watch"
    columns = [("Expression", 70), ("Value", 1024)]

    def CreateWindow(self, parent):
        DebuggerListViewWindow.CreateWindow(self, parent)
        items = win32ui.GetProfileVal(
            "Debugger Windows\\" + self.title, "Items", ""
        ).split("\t")
        index = -1
        for item in items:
            if item:
                index = self.InsertItem(index + 1, item)
        self.InsertItem(index + 1, "<New Item>")

    def SaveState(self):
        items = []
        for i in range(self.GetItemCount() - 1):
            items.append(self.GetItemText(i, 0))
        win32ui.WriteProfileVal(
            "Debugger Windows\\" + self.title, "Items", "\t".join(items)
        )
        win32ui.WriteProfileVal(
            "Debugger Windows\\" + self.title, "Visible", self.IsWindowVisible()
        )
        return 1

    def OnListEndLabelEdit(self, std, extra):
        item = extra[0]
        itemno = item[0]
        text = item[4]
        if text is None:
            return
        self.SetItemText(itemno, 0, text)
        if itemno == self.GetItemCount() - 1:
            self.InsertItem(itemno + 1, "<New Item>")
        self.RespondDebuggerState(self.debugger.debuggerState)

    def DeleteSelected(self):
        try:
            num = self.GetNextItem(-1, commctrl.LVNI_SELECTED)
            if num < self.GetItemCount() - 1:  # We cant delete the last
                self.DeleteItem(num)
        except win32ui.error:
            win32api.MessageBeep()

    def RespondDebuggerState(self, state):
        globs = locs = None
        if state == DBGSTATE_BREAK:
            if self.debugger.curframe:
                globs = self.debugger.curframe.f_globals
                locs = self.debugger.curframe.f_locals
        elif state == DBGSTATE_NOT_DEBUGGING:
            import __main__

            globs = locs = __main__.__dict__
        for i in range(self.GetItemCount() - 1):
            text = self.GetItemText(i, 0)
            if globs is None:
                val = ""
            else:
                try:
                    val = repr(eval(text, globs, locs))
                except SyntaxError:
                    val = "Syntax Error"
                except:
                    t, v, tb = sys.exc_info()
                    val = traceback.format_exception_only(t, v)[0].strip()
                    tb = None  # prevent a cycle.
            self.SetItemText(i, 1, val)


def CreateDebuggerDialog(parent, klass):
    control = klass()
    control.CreateWindow(parent)
    return control


DebuggerDialogInfos = (
    (0xE810, DebuggerStackWindow, None),
    (0xE811, DebuggerBreakpointsWindow, (10, 10)),
    (0xE812, DebuggerWatchWindow, None),
)


# Prepare all the "control bars" for this package.
# If control bars are not all loaded when the toolbar-state functions are
# called, things go horribly wrong.
def PrepareControlBars(frame):
    style = (
        win32con.WS_CHILD
        | afxres.CBRS_SIZE_DYNAMIC
        | afxres.CBRS_TOP
        | afxres.CBRS_TOOLTIPS
        | afxres.CBRS_FLYBY
    )
    tbd = win32ui.CreateToolBar(frame, style, win32ui.ID_VIEW_TOOLBAR_DBG)
    tbd.ModifyStyle(0, commctrl.TBSTYLE_FLAT)
    tbd.LoadToolBar(win32ui.IDR_DEBUGGER)
    tbd.EnableDocking(afxres.CBRS_ALIGN_ANY)
    tbd.SetWindowText("Debugger")
    frame.DockControlBar(tbd)

    # and the other windows.
    for id, klass, float in DebuggerDialogInfos:
        try:
            frame.GetControlBar(id)
            exists = 1
        except win32ui.error:
            exists = 0
        if exists:
            continue
        bar = pywin.docking.DockingBar.DockingBar()
        style = win32con.WS_CHILD | afxres.CBRS_LEFT  # don't create visible.
        bar.CreateWindow(
            frame,
            CreateDebuggerDialog,
            klass.title,
            id,
            style,
            childCreatorArgs=(klass,),
        )
        bar.SetBarStyle(
            bar.GetBarStyle()
            | afxres.CBRS_TOOLTIPS
            | afxres.CBRS_FLYBY
            | afxres.CBRS_SIZE_DYNAMIC
        )
        bar.EnableDocking(afxres.CBRS_ALIGN_ANY)
        if float is None:
            frame.DockControlBar(bar)
        else:
            frame.FloatControlBar(bar, float, afxres.CBRS_ALIGN_ANY)

        ## frame.ShowControlBar(bar, 0, 1)


SKIP_NONE = 0
SKIP_STEP = 1
SKIP_RUN = 2

debugger_parent = pdb.Pdb


class Debugger(debugger_parent):
    def __init__(self):
        self.inited = 0
        self.skipBotFrame = SKIP_NONE
        self.userbotframe = None
        self.frameShutdown = 0
        self.pumping = 0
        self.debuggerState = DBGSTATE_NOT_DEBUGGING  # Assume so, anyway.
        self.shownLineCurrent = None  # The last filename I highlighted.
        self.shownLineCallstack = None  # The last filename I highlighted.
        self.last_cmd_debugged = ""
        self.abortClosed = 0
        self.isInitialBreakpoint = 0
        debugger_parent.__init__(self)

        # See if any break-points have been set in the editor
        for doc in editor.editorTemplate.GetDocumentList():
            lineNo = -1
            while 1:
                lineNo = doc.MarkerGetNext(lineNo + 1, MARKER_BREAKPOINT)
                if lineNo <= 0:
                    break
                self.set_break(doc.GetPathName(), lineNo)

        self.reset()
        self.inForcedGUI = win32ui.GetApp().IsInproc()
        self.options = LoadDebuggerOptions()
        self.bAtException = self.bAtPostMortem = 0

    def __del__(self):
        self.close()

    def close(self, frameShutdown=0):
        # abortClose indicates if we have total shutdown
        # (ie, main window is dieing)
        if self.pumping:
            # Can stop pump here, as it only posts a message, and
            # returns immediately.
            if not self.StopDebuggerPump():  # User cancelled close.
                return 0
            # NOTE - from this point on the close can not be
            # stopped - the WM_QUIT message is already in the queue.
        self.frameShutdown = frameShutdown
        if not self.inited:
            return 1
        self.inited = 0

        SetInteractiveContext(None, None)

        frame = win32ui.GetMainFrame()
        # Hide the debuger toolbars (as they wont normally form part of the main toolbar state.
        for id, klass, float in DebuggerDialogInfos:
            try:
                tb = frame.GetControlBar(id)
                if tb.dialog is not None:  # We may never have actually been shown.
                    tb.dialog.SaveState()
                    frame.ShowControlBar(tb, 0, 1)
            except win32ui.error:
                pass

        self._UnshowCurrentLine()
        self.set_quit()
        return 1

    def StopDebuggerPump(self):
        assert self.pumping, "Can't stop the debugger pump if Im not pumping!"
        # After stopping a pump, I may never return.
        if self.GUIAboutToFinishInteract():
            self.pumping = 0
            win32ui.StopDebuggerPump()  # Posts a message, so we do return.
            return 1
        return 0

    def get_option(self, option):
        """Public interface into debugger options"""
        try:
            return self.options[option]
        except KeyError:
            raise error("Option %s is not a valid option" % option)

    def prep_run(self, cmd):
        pass

    def done_run(self, cmd=None):
        self.RespondDebuggerState(DBGSTATE_NOT_DEBUGGING)
        self.close()

    def canonic(self, fname):
        return os.path.abspath(fname).lower()

    def reset(self):
        debugger_parent.reset(self)
        self.userbotframe = None
        self.UpdateAllLineStates()
        self._UnshowCurrentLine()

    def setup(self, f, t):
        debugger_parent.setup(self, f, t)
        self.bAtException = t is not None

    def set_break(self, filename, lineno, temporary=0, cond=None):
        filename = self.canonic(filename)
        self.SetLineState(filename, lineno, LINESTATE_BREAKPOINT)
        return debugger_parent.set_break(self, filename, lineno, temporary, cond)

    def clear_break(self, filename, lineno):
        filename = self.canonic(filename)
        self.ResetLineState(filename, lineno, LINESTATE_BREAKPOINT)
        return debugger_parent.clear_break(self, filename, lineno)

    def cmdloop(self):
        if self.frameShutdown:
            return  # App in the process of closing - never break in!
        self.GUIAboutToBreak()

    def print_stack_entry(self, frame):
        # We dont want a stack printed - our GUI is better :-)
        pass

    def user_return(self, frame, return_value):
        # Same as parent, just no "print"
        # This function is called when a return trap is set here
        frame.f_locals["__return__"] = return_value
        self.interaction(frame, None)

    def user_call(self, frame, args):
        # base class has an annoying 'print' that adds no value to us...
        if self.stop_here(frame):
            self.interaction(frame, None)

    def user_exception(self, frame, exc_info):
        # This function is called if an exception occurs,
        # but only if we are to stop at or just below this level
        (exc_type, exc_value, exc_traceback) = exc_info
        if self.get_option(OPT_STOP_EXCEPTIONS):
            frame.f_locals["__exception__"] = exc_type, exc_value
            print("Unhandled exception while debugging...")
            # on both py2k and py3k, we may be called with exc_value
            # being the args to the exception, or it may already be
            # instantiated (IOW, PyErr_Normalize() hasn't been
            # called on the args).  In py2k this is fine, but in
            # py3k, traceback.print_exception fails.  So on py3k
            # we instantiate an exception instance to print.
            if sys.version_info > (3,) and not isinstance(exc_value, BaseException):
                # they are args - may be a single item or already a tuple
                if not isinstance(exc_value, tuple):
                    exc_value = (exc_value,)
                exc_value = exc_type(*exc_value)

            traceback.print_exception(exc_type, exc_value, exc_traceback)
            self.interaction(frame, exc_traceback)

    def user_line(self, frame):
        if frame.f_lineno == 0:
            return
        debugger_parent.user_line(self, frame)

    def stop_here(self, frame):
        if self.isInitialBreakpoint:
            self.isInitialBreakpoint = 0
            self.set_continue()
            return 0
        if frame is self.botframe and self.skipBotFrame == SKIP_RUN:
            self.set_continue()
            return 0
        if frame is self.botframe and self.skipBotFrame == SKIP_STEP:
            self.set_step()
            return 0
        return debugger_parent.stop_here(self, frame)

    def run(self, cmd, globals=None, locals=None, start_stepping=1):
        if not isinstance(cmd, (str, types.CodeType)):
            raise TypeError("Only strings can be run")
        self.last_cmd_debugged = cmd
        if start_stepping:
            self.isInitialBreakpoint = 0
        else:
            self.isInitialBreakpoint = 1
        try:
            if globals is None:
                import __main__

                globals = __main__.__dict__
            if locals is None:
                locals = globals
            self.reset()
            self.prep_run(cmd)
            sys.settrace(self.trace_dispatch)
            if type(cmd) != types.CodeType:
                cmd = cmd + "\n"
            try:
                try:
                    if start_stepping:
                        self.skipBotFrame = SKIP_STEP
                    else:
                        self.skipBotFrame = SKIP_RUN
                    exec(cmd, globals, locals)
                except bdb.BdbQuit:
                    pass
            finally:
                self.skipBotFrame = SKIP_NONE
                self.quitting = 1
                sys.settrace(None)

        finally:
            self.done_run(cmd)

    def runeval(self, expr, globals=None, locals=None):
        self.prep_run(expr)
        try:
            debugger_parent.runeval(self, expr, globals, locals)
        finally:
            self.done_run(expr)

    def runexec(self, what, globs=None, locs=None):
        self.reset()
        sys.settrace(self.trace_dispatch)
        try:
            try:
                exec(what, globs, locs)
            except bdb.BdbQuit:
                pass
        finally:
            self.quitting = 1
            sys.settrace(None)

    def do_set_step(self):
        if self.GUIAboutToRun():
            self.set_step()

    def do_set_next(self):
        if self.GUIAboutToRun():
            self.set_next(self.curframe)

    def do_set_return(self):
        if self.GUIAboutToRun():
            self.set_return(self.curframe)

    def do_set_continue(self):
        if self.GUIAboutToRun():
            self.set_continue()

    def set_quit(self):
        ok = 1
        if self.pumping:
            ok = self.StopDebuggerPump()
        if ok:
            debugger_parent.set_quit(self)

    def _dump_frame_(self, frame, name=None):
        if name is None:
            name = ""
        if frame:
            if frame.f_code and frame.f_code.co_filename:
                fname = os.path.split(frame.f_code.co_filename)[1]
            else:
                fname = "??"
            print(repr(name), fname, frame.f_lineno, frame)
        else:
            print(repr(name), "None")

    def set_trace(self):
        # Start debugging from _2_ levels up!
        try:
            1 + ""
        except:
            frame = sys.exc_info()[2].tb_frame.f_back.f_back
        self.reset()
        self.userbotframe = None
        while frame:
            # scriptutils.py creates a local variable with name
            # '_debugger_stop_frame_', and we dont go past it
            # (everything above this is Pythonwin framework code)
            if "_debugger_stop_frame_" in frame.f_locals:
                self.userbotframe = frame
                break

            frame.f_trace = self.trace_dispatch
            self.botframe = frame
            frame = frame.f_back
        self.set_step()
        sys.settrace(self.trace_dispatch)

    def set_cur_frame(self, frame):
        # Sets the "current" frame - ie, the frame with focus.  This is the
        # frame on which "step out" etc actions are taken.
        # This may or may not be the top of the stack.
        assert frame is not None, "You must pass a valid frame"
        self.curframe = frame
        for f, index in self.stack:
            if f is frame:
                self.curindex = index
                break
        else:
            assert 0, "Can't find the frame in the stack."
        SetInteractiveContext(frame.f_globals, frame.f_locals)
        self.GUIRespondDebuggerData()
        self.ShowCurrentLine()

    def IsBreak(self):
        return self.debuggerState == DBGSTATE_BREAK

    def IsDebugging(self):
        return self.debuggerState != DBGSTATE_NOT_DEBUGGING

    def RespondDebuggerState(self, state):
        if state == self.debuggerState:
            return
        if state == DBGSTATE_NOT_DEBUGGING:  # Debugger exists, but not doing anything
            title = ""
        elif state == DBGSTATE_RUNNING:  # Code is running under the debugger.
            title = " - running"
        elif state == DBGSTATE_BREAK:  # We are at a breakpoint or stepping or whatever.
            if self.bAtException:
                if self.bAtPostMortem:
                    title = " - post mortem exception"
                else:
                    title = " - exception"
            else:
                title = " - break"
        else:
            raise error("Invalid debugger state passed!")
        win32ui.GetMainFrame().SetWindowText(
            win32ui.LoadString(win32ui.IDR_MAINFRAME) + title
        )
        if self.debuggerState == DBGSTATE_QUITTING and state != DBGSTATE_NOT_DEBUGGING:
            print("Ignoring state change cos Im trying to stop!", state)
            return
        self.debuggerState = state
        try:
            frame = win32ui.GetMainFrame()
        except win32ui.error:
            frame = None
        if frame is not None:
            for id, klass, float in DebuggerDialogInfos:
                cb = win32ui.GetMainFrame().GetControlBar(id).dialog
                cb.RespondDebuggerState(state)
        # Tell each open editor window about the state transition
        for doc in editor.editorTemplate.GetDocumentList():
            doc.OnDebuggerStateChange(state)
        self.ShowCurrentLine()

    #
    # GUI debugger interface.
    #
    def GUICheckInit(self):
        if self.inited:
            return
        self.inited = 1
        frame = win32ui.GetMainFrame()

        # Ensure the debugger windows are attached to the debugger.
        for id, klass, float in DebuggerDialogInfos:
            w = frame.GetControlBar(id)
            w.dialog.Init(self)
            # Show toolbar if it was visible during last debug session
            # This would be better done using a CDockState, but that class is not wrapped yet
            if win32ui.GetProfileVal(
                "Debugger Windows\\" + w.dialog.title, "Visible", 0
            ):
                frame.ShowControlBar(w, 1, 1)

        # ALWAYS show debugging toolbar, regardless of saved state
        tb = frame.GetControlBar(win32ui.ID_VIEW_TOOLBAR_DBG)
        frame.ShowControlBar(tb, 1, 1)
        self.GUIRespondDebuggerData()

    # 		frame.RecalcLayout()

    def GetDebuggerBar(self, barName):
        frame = win32ui.GetMainFrame()
        for id, klass, float in DebuggerDialogInfos:
            if klass.title == barName:
                return frame.GetControlBar(id)
        assert 0, "Can't find a bar of that name!"

    def GUIRespondDebuggerData(self):
        if not self.inited:  # GUI not inited - no toolbars etc.
            return

        for id, klass, float in DebuggerDialogInfos:
            cb = win32ui.GetMainFrame().GetControlBar(id).dialog
            cb.RespondDebuggerData()

    def GUIAboutToRun(self):
        if not self.StopDebuggerPump():
            return 0
        self._UnshowCurrentLine()
        self.RespondDebuggerState(DBGSTATE_RUNNING)
        SetInteractiveContext(None, None)
        return 1

    def GUIAboutToBreak(self):
        "Called as the GUI debugger is about to get context, and take control of the running program."
        self.GUICheckInit()
        self.RespondDebuggerState(DBGSTATE_BREAK)
        self.GUIAboutToInteract()
        if self.pumping:
            print("!!! Already pumping - outa here")
            return
        self.pumping = 1
        win32ui.StartDebuggerPump()  # NOTE - This will NOT return until the user is finished interacting
        assert not self.pumping, "Should not be pumping once the pump has finished"
        if self.frameShutdown:  # User shut down app while debugging
            win32ui.GetMainFrame().PostMessage(win32con.WM_CLOSE)

    def GUIAboutToInteract(self):
        "Called as the GUI is about to perform any interaction with the user"
        frame = win32ui.GetMainFrame()
        # Remember the enabled state of our main frame
        # may be disabled primarily if a modal dialog is displayed.
        # Only get at enabled via GetWindowLong.
        self.bFrameEnabled = frame.IsWindowEnabled()
        self.oldForeground = None
        fw = win32ui.GetForegroundWindow()
        if fw is not frame:
            self.oldForeground = fw
            # 			fw.EnableWindow(0) Leave enabled for now?
            self.oldFrameEnableState = frame.IsWindowEnabled()
            frame.EnableWindow(1)
        if self.inForcedGUI and not frame.IsWindowVisible():
            frame.ShowWindow(win32con.SW_SHOW)
            frame.UpdateWindow()
        if self.curframe:
            SetInteractiveContext(self.curframe.f_globals, self.curframe.f_locals)
        else:
            SetInteractiveContext(None, None)
        self.GUIRespondDebuggerData()

    def GUIAboutToFinishInteract(self):
        """Called as the GUI is about to finish any interaction with the user
        Returns non zero if we are allowed to stop interacting"""
        if self.oldForeground is not None:
            try:
                win32ui.GetMainFrame().EnableWindow(self.oldFrameEnableState)
                self.oldForeground.EnableWindow(1)
            except win32ui.error:
                # old window may be dead.
                pass
        # 			self.oldForeground.SetForegroundWindow() - fails??
        if not self.inForcedGUI:
            return 1  # Never a problem, and nothing else to do.
        # If we are running a forced GUI, we may never get an opportunity
        # to interact again.  Therefore we perform a "SaveAll", to makesure that
        # any documents are saved before leaving.
        for template in win32ui.GetApp().GetDocTemplateList():
            for doc in template.GetDocumentList():
                if not doc.SaveModified():
                    return 0
        # All documents saved - now hide the app and debugger.
        if self.get_option(OPT_HIDE):
            frame = win32ui.GetMainFrame()
            frame.ShowWindow(win32con.SW_HIDE)
        return 1

    #
    # Pythonwin interface - all stuff to do with showing source files,
    # changing line states etc.
    #
    def ShowLineState(self, fileName, lineNo, lineState):
        # Set the state of a line, open if not already
        self.ShowLineNo(fileName, lineNo)
        self.SetLineState(fileName, lineNo, lineState)

    def SetLineState(self, fileName, lineNo, lineState):
        # Set the state of a line if the document is open.
        doc = editor.editorTemplate.FindOpenDocument(fileName)
        if doc is not None:
            marker = _LineStateToMarker(lineState)
            if not doc.MarkerCheck(lineNo, marker):
                doc.MarkerAdd(lineNo, marker)

    def ResetLineState(self, fileName, lineNo, lineState):
        # Set the state of a line if the document is open.
        doc = editor.editorTemplate.FindOpenDocument(fileName)
        if doc is not None:
            marker = _LineStateToMarker(lineState)
            doc.MarkerDelete(lineNo, marker)

    def UpdateDocumentLineStates(self, doc):
        # Show all lines in their special status color.  If the doc is open
        # all line states are reset.
        doc.MarkerDeleteAll(MARKER_BREAKPOINT)
        doc.MarkerDeleteAll(MARKER_CURRENT)
        fname = self.canonic(doc.GetPathName())
        # Now loop over all break-points
        for line in self.breaks.get(fname, []):
            doc.MarkerAdd(line, MARKER_BREAKPOINT)
        # And the current line if in this document.
        if self.shownLineCurrent and fname == self.shownLineCurrent[0]:
            lineNo = self.shownLineCurrent[1]
            if not doc.MarkerCheck(lineNo, MARKER_CURRENT):
                doc.MarkerAdd(lineNo, MARKER_CURRENT)

    # 		if self.shownLineCallstack and fname == self.shownLineCallstack[0]:
    # 			doc.MarkerAdd(self.shownLineCallstack[1], MARKER_CURRENT)

    def UpdateAllLineStates(self):
        for doc in editor.editorTemplate.GetDocumentList():
            self.UpdateDocumentLineStates(doc)

    def ShowCurrentLine(self):
        # Show the current line.  Only ever 1 current line - undoes last current
        # The "Current Line" is self.curframe.
        # The "Callstack Line" is the top of the stack.
        # If current == callstack, only show as current.
        self._UnshowCurrentLine()  # un-highlight the old one.
        if self.curframe:
            fileName = self.canonic(self.curframe.f_code.co_filename)
            lineNo = self.curframe.f_lineno
            self.shownLineCurrent = fileName, lineNo
            self.ShowLineState(fileName, lineNo, LINESTATE_CURRENT)

    def _UnshowCurrentLine(self):
        "Unshow the current line, and forget it"
        if self.shownLineCurrent is not None:
            fname, lineno = self.shownLineCurrent
            self.ResetLineState(fname, lineno, LINESTATE_CURRENT)
            self.shownLineCurrent = None

    def ShowLineNo(self, filename, lineno):
        wasOpen = editor.editorTemplate.FindOpenDocument(filename) is not None
        if os.path.isfile(filename) and scriptutils.JumpToDocument(filename, lineno):
            if not wasOpen:
                doc = editor.editorTemplate.FindOpenDocument(filename)
                if doc is not None:
                    self.UpdateDocumentLineStates(doc)
                    return 1
                return 0
            return 1
        else:
            # Can't find the source file - linecache may have it?
            import linecache

            line = linecache.getline(filename, lineno)
            print(
                "%s(%d): %s"
                % (os.path.basename(filename), lineno, line[:-1].expandtabs(4))
            )
            return 0