494 lines
12 KiB
Python
494 lines
12 KiB
Python
# Window-interface-independent part of twit
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import sys
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import types
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import bdb
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import types
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SIMPLE_TYPES=(
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types.NoneType,
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types.IntType,
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types.LongType,
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types.FloatType,
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types.ComplexType,
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types.StringType
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)
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def Initialize():
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pass
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class DebuggerStuff(bdb.Bdb):
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def __init__(self, parent):
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bdb.Bdb.__init__(self)
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self.parent = parent
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self.exception_info = (None, None)
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self.reason = 'Not running'
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self.reset()
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def reset(self):
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bdb.Bdb.reset(self)
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self.forget()
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def forget(self):
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self.lineno = None
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self.stack = []
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self.curindex = 0
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self.curframe = None
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def setup(self, f, t):
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self.forget()
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self.stack, self.curindex = self.get_stack(f, t)
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self.curframe = self.stack[self.curindex][0]
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def interaction(self, frame, traceback):
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self.setup(frame, traceback)
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self.parent.interact()
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self.exception_info = (None, None)
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def user_call(self, frame, argument_list):
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self.reason = 'Calling function'
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self.interaction(frame, None)
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def user_line(self, frame):
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self.reason = 'Stopped'
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self.interaction(frame, None)
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def user_return(self, frame, return_value):
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self.reason = 'Returning from function'
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self.interaction(frame, None)
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def user_exception(self, frame, (exc_type, exc_value, exc_traceback)):
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self.reason = 'Exception occurred'
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self.exception_info = (exc_type, exc_value)
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self.interaction(frame, exc_traceback)
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def getexception(self):
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tp, value = self.exception_info
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if tp <> None and type(tp) <> type(''):
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tp = tp.__name__
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if value <> None and type(value) <> type(''):
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value = `value`
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return tp, value
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def getstacktrace(self):
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names, locations = [], []
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for frame, lineno in self.stack:
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name = frame.f_code.co_name
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if not name:
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name = "<lambda>"
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elif name == '?':
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name = "<not a function>"
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else:
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name = name + '()'
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names.append(name)
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if lineno == -1:
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lineno = getframelineno(frame)
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modname = getframemodname(frame)
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if not modname: modname = "<unknown>"
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locations.append("%s:%d" % (modname, lineno))
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return names, locations
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def getframe(self, number):
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if number < 0 or number >= len(self.stack):
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return None
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return self.stack[number][0]
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def getframevars(self, number, show_complex=1, show_system=1):
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frame = self.getframe(number)
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if not frame:
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return [], []
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return getvarsfromdict(frame.f_locals, show_complex, show_system)
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def getframevar(self, number, var):
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frame = self.getframe(number)
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return frame.f_locals[var]
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def getframefilepos(self, frameno):
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if frameno == None or frameno < 0 or frameno >= len(self.stack):
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return None, None, None
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frame, line = self.stack[frameno]
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if line == -1:
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line = getframelineno(frame)
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modname = getframemodname(frame)
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filename = frame.f_code.co_filename
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return filename, modname, line
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def getprogramstate(self):
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return self.reason
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class Application:
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"""Base code for the application"""
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def mi_init(self, run_args, pm_args):
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self.dbg = DebuggerStuff(self)
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self.run_dialog = self.new_stack_browser(self)
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self.run_dialog.open()
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self.module_dialog = None
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self.initial_cmd = None
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if pm_args:
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while pm_args.tb_next <> None:
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pm_args = pm_args.tb_next
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self.dbg.setup(pm_args.tb_frame, pm_args)
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self.run_dialog.setsession_pm()
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elif run_args:
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self.run_dialog.setsession_run()
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self.initial_cmd = run_args
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else:
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self.run_dialog.setsession_none()
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def breaks_changed(self, filename):
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self.run_dialog.breaks_changed(filename)
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if self.module_dialog:
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self.module_dialog.breaks_changed(filename)
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def to_debugger(self):
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apply(self.dbg.run, self.initial_cmd)
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def interact(self):
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# Interact with user. First, display correct info
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self.run_dialog.update_views()
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if self.module_dialog:
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self.module_dialog.update_views()
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# Next, go into mainloop
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self.one_mainloop()
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# Finally (before we start the debuggee again) show state
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self.run_dialog.show_it_running()
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def quit_bdb(self):
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self.dbg.set_quit()
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def run(self):
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cmd = AskString('Statement to execute:')
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self.initial_cmd = (cmd, None, None)
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self.run_dialog.setsession_run()
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self.exit_mainloop()
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def cont(self):
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self.dbg.set_continue()
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self.exit_mainloop()
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def step(self, frame):
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self.dbg.set_next(frame)
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self.exit_mainloop()
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def step_in(self):
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self.dbg.set_step()
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self.exit_mainloop()
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def step_out(self, frame):
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self.dbg.set_return(frame)
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self.exit_mainloop()
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def quit(self):
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self.do_quit()
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def browse(self, module):
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if not self.module_dialog:
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self.module_dialog = self.new_module_browser(self)
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self.module_dialog.open(module)
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else:
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self.module_dialog.focus(module)
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def browse_var(self, var):
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b = self.new_var_browser(self, var)
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class StackBrowser:
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"""Base code for stack browser"""
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def mi_open(self):
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"""Setup initial data structures"""
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self.create_items()
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self.cur_stackitem = None
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self.cur_source = None
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self.cur_modname = None
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self.cur_line = None
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self.show_complex = 1
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self.show_system = 0
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self.setup()
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# create_items(self) should create self.modules, self.vars and self.source
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def setup(self):
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SetWatch()
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"""Fill the various widgets with values"""
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name, value = self.parent.dbg.getexception()
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self.setexception(name, value)
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self.setprogramstate(self.parent.dbg.getprogramstate())
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names, locations = self.parent.dbg.getstacktrace()
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self.stack.setcontent(names, locations)
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self.cur_stackitem = len(names)-1
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self.stack.select(self.cur_stackitem)
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self.setup_frame()
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def setup_frame(self):
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"""Setup frame-dependent widget data"""
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SetWatch()
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self.cont_varnames, self.cont_varvalues = \
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self.parent.dbg.getframevars(self.cur_stackitem,
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self.show_complex, self.show_system)
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self.vars.setcontent(self.cont_varnames, self.cont_varvalues)
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self.set_var_buttons()
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msg = ""
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if self.cur_stackitem == None:
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self.cur_source = None
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self.cur_modname = None
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self.cur_line = None
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msg = "No stackframe selected"
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else:
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self.cur_source, self.cur_modname, optnextline = \
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self.parent.dbg.getframefilepos(self.cur_stackitem)
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if optnextline >= 0:
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self.cur_line = optnextline
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if self.cur_source == '<string>':
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self.cur_source = None
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msg = "Executing from <string>"
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print 'SOURCE', self.cur_source
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print 'LINE', self.cur_line
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self.setsource(msg)
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self.source.setcurline(self.cur_line)
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self.breaks_changed(self.cur_source)
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SetCursor()
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# setsource(msg) should display cur_source+content, or msg if None
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def show_it_running(self):
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self.setprogramstate("Running")
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def update_views(self):
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self.setup()
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def click_stack(self, number, *dummy):
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if number == self.cur_stackitem: return
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self.cur_stackitem = number
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self.stack.select(self.cur_stackitem)
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self.setup_frame()
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def click_var(self, var, *dummy):
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v = self.parent.dbg.getframevar(self.cur_stackitem, var)
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self.parent.browse_var(v)
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def click_source(self, lineno, inborder):
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if not inborder:
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self.source.select(lineno)
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self.cur_line = lineno
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if lineno == None or not self.cur_source or not inborder:
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return
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if self.parent.dbg.get_break(self.cur_source, lineno):
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self.parent.dbg.clear_break(self.cur_source, lineno)
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else:
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self.parent.dbg.set_break(self.cur_source, lineno)
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self.parent.breaks_changed(self.cur_source)
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def breaks_changed(self, filename):
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if filename == self.cur_source:
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list = self.parent.dbg.get_file_breaks(filename)
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self.source.setbreaks(list)
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def click_quit(self):
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self.parent.quit()
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def click_run(self):
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self.parent.run()
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def click_continue(self):
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self.parent.cont()
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def click_step(self):
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if self.cur_stackitem <> None:
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frame = self.parent.dbg.getframe(self.cur_stackitem)
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self.parent.step(frame)
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else:
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self.parent.step_in()
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def click_step_in(self):
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self.parent.step_in()
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def click_step_out(self):
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if self.cur_stackitem <> None:
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frame = self.parent.dbg.getframe(self.cur_stackitem)
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self.parent.step_out(frame)
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else:
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self.parent.step_in()
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def click_browse(self):
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self.parent.browse(self.cur_modname)
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def click_edit(self):
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lino = self.cur_line
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if not lino:
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lino = 1
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if self.cur_source:
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self.parent.edit(self.cur_source, lino)
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class ModuleBrowser:
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"""Base code for a module-browser"""
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def mi_open(self, module):
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"""Setup initial data structures"""
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self.create_items()
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self.cur_module = module
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self.cur_source = None
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self.cur_line = None
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self.cont_modules = []
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self.value_windows = []
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self.setup()
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# create_items(self) should create self.modules, self.vars and self.source
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def setup(self):
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"""Fill the various widgets with values"""
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SetWatch()
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modnames = getmodulenames()
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if not self.cur_module in modnames:
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self.cur_module = None
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if modnames <> self.cont_modules:
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self.modules.setcontent(modnames)
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self.cont_modules = modnames
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if self.cur_module:
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self.modules.select(self.cont_modules.index(self.cur_module))
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else:
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self.modules.select(None)
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self.setup_module()
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def setup_module(self):
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"""Setup module-dependent widget data"""
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SetWatch()
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if not self.cur_module:
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self.vars.setcontent([], [])
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else:
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self.cont_varnames, self.cont_varvalues = getmodulevars(self.cur_module)
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self.vars.setcontent(self.cont_varnames, self.cont_varvalues)
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msg = ""
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if not self.cur_module:
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self.cur_source = None
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msg = "No module selected"
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else:
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m = sys.modules[self.cur_module]
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try:
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self.cur_source = m.__file__
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except AttributeError:
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self.cur_source = None
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msg = "Not a python module"
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self.cur_lineno = 0
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self.setsource(msg)
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self.source.select(self.cur_line)
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self.breaks_changed(self.cur_source)
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SetCursor()
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# setsource(msg) should display cur_source+content, or msg if None
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def update_views(self):
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self.setup_module()
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def click_module(self, module, *dummy):
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if not module or module == self.cur_module: return
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self.focus(module)
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def focus(self, module):
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self.cur_module = module
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self.setup()
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def click_var(self, var, *dummy):
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if not var: return
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m = sys.modules[self.cur_module]
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dict = m.__dict__
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self.parent.browse_var(dict[var])
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def click_source(self, lineno, inborder):
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if not inborder:
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self.source.select(lineno)
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self.cur_lineno = lineno
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if lineno == None or not self.cur_source or not inborder:
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return
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if self.parent.dbg.get_break(self.cur_source, lineno):
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self.parent.dbg.clear_break(self.cur_source, lineno)
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else:
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self.parent.dbg.set_break(self.cur_source, lineno)
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self.parent.breaks_changed(self.cur_source)
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def breaks_changed(self, filename):
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if filename == self.cur_source:
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list = self.parent.dbg.get_file_breaks(filename)
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self.source.setbreaks(list)
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def click_edit(self):
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lino = self.cur_lineno
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if not lino:
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lino = 1
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if self.cur_source:
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self.parent.edit(self.cur_source, lino)
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def getmodulenames():
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"""Return a list of all current modules, sorted"""
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list = sys.modules.keys()[:]
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list.sort()
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return list
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def getmodulevars(name):
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"""For given module return lists with names and values"""
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m = sys.modules[name]
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try:
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dict = m.__dict__
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except AttributeError:
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dict = {}
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return getvarsfromdict(dict)
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def getvarsfromdict(dict, show_complex=1, show_system=1):
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allnames = dict.keys()[:]
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allnames.sort()
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names = []
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for n in allnames:
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if not show_complex:
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if not type(dict[n]) in SIMPLE_TYPES:
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continue
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if not show_system:
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if n[:2] == '__' and n[-2:] == '__':
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continue
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names.append(n)
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values = []
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for n in names:
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v = pretty(dict[n])
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values.append(v)
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return names, values
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def pretty(var):
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t = type(var)
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if t == types.FunctionType: return '<function>'
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if t == types.ClassType: return '<class>'
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return `var`
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def getframelineno(frame):
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"""Given a frame return the line number"""
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return getcodelineno(frame.f_code)
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def getfunclineno(func):
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"""Given a function return the line number"""
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return getcodelineno(func.func_code)
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def getcodelineno(cobj):
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"""Given a code object return the line number"""
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code = cobj.co_code
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lineno = -1
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if ord(code[0]) == 127: # SET_LINENO instruction
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lineno = ord(code[1]) | (ord(code[2]) << 8)
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return lineno
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def getframemodname(frame):
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"""Given a frame return the module name"""
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globals = frame.f_globals
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if globals.has_key('__name__'):
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return globals['__name__']
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return None
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