| Jack Jansen | cb5704e | 1998-08-18 14:59:10 +0000 | [diff] [blame] | 1 | __version__ = "$Id$" |
| 2 | |
| 3 | import sys |
| 4 | from time import time |
| 5 | |
| 6 | class Trace: |
| 7 | def __init__(self): |
| 8 | self.dispatch = { |
| 9 | 'call': self.trace_dispatch_call, |
| 10 | 'return': self.trace_dispatch_return, |
| 11 | 'exception': self.trace_dispatch_exception, |
| 12 | } |
| 13 | self.curframe = None |
| 14 | self.depth = -1 |
| 15 | self.stdout = sys.stdout |
| 16 | |
| 17 | def run(self, cmd, globals = None, locals = None): |
| 18 | if globals is None: |
| 19 | import __main__ |
| 20 | globals = __main__.__dict__ |
| 21 | if locals is None: |
| 22 | locals = globals |
| 23 | sys.setprofile(self.trace_dispatch) |
| 24 | try: |
| 25 | exec cmd in globals, locals |
| 26 | finally: |
| 27 | sys.setprofile(None) |
| 28 | |
| 29 | def runcall(self, func, *args): |
| 30 | sys.setprofile(self.trace_dispatch) |
| 31 | try: |
| 32 | apply(func, args) |
| 33 | finally: |
| 34 | sys.setprofile(None) |
| 35 | |
| 36 | def trace_dispatch(self, frame, event, arg): |
| 37 | curstdout = sys.stdout |
| 38 | sys.stdout = self.stdout |
| 39 | self.dispatch[event](frame, arg) |
| 40 | sys.stdout = curstdout |
| 41 | |
| 42 | def trace_dispatch_call(self, frame, arg): |
| 43 | self.depth = self.depth + 1 |
| 44 | self.curframe = frame |
| 45 | code = frame.f_code |
| 46 | funcname = code.co_name |
| 47 | if not funcname: |
| 48 | funcname = '<lambda>' |
| 49 | filename = code.co_filename |
| 50 | lineno = frame.f_lineno |
| 51 | if lineno == -1: |
| 52 | code = code.co_code |
| 53 | if ord(code[0]) == 127: # SET_LINENO |
| 54 | lineno = ord(code[1]) | ord(code[2]) << 8 |
| 55 | pframe = frame.f_back |
| 56 | if pframe: |
| 57 | plineno = ' (%d)' % pframe.f_lineno |
| 58 | else: |
| 59 | plineno = '' |
| 60 | print '%s> %s:%d %s%s' % (' '*self.depth,filename,lineno,funcname,plineno) |
| 61 | frame.f_locals['__start_time'] = time() |
| 62 | |
| 63 | def trace_dispatch_return(self, frame, arg): |
| 64 | try: |
| 65 | t = frame.f_locals['__start_time'] |
| 66 | except KeyError: |
| 67 | t = '' |
| 68 | else: |
| 69 | t = ' [%.4f]' % (time() - t) |
| 70 | funcname = frame.f_code.co_name |
| 71 | self.curframe = frame.f_back |
| 72 | if not funcname: |
| 73 | funcname = '<lambda>' |
| 74 | filename = frame.f_code.co_filename |
| 75 | print '%s< %s:%d %s%s' % (' '*self.depth,filename,frame.f_lineno,funcname,t) |
| 76 | self.depth = self.depth - 1 |
| 77 | |
| 78 | def trace_dispatch_exception(self, frame, arg): |
| 79 | t = '' |
| 80 | if frame is not self.curframe: |
| 81 | try: |
| 82 | t = frame.f_locals['__start_time'] |
| 83 | except KeyError: |
| 84 | pass |
| 85 | else: |
| 86 | t = ' [%.4f]' % (time() - t) |
| 87 | self.depth = self.depth - 1 |
| 88 | self.curframe = frame |
| 89 | funcname = frame.f_code.co_name |
| 90 | if not funcname: |
| 91 | funcname = '<lambda>' |
| 92 | filename = frame.f_code.co_filename |
| 93 | print '%sE %s:%d %s%s' % (' '*(self.depth+1),filename,frame.f_lineno,funcname,t) |
| 94 | |
| 95 | def set_trace(self): |
| 96 | try: |
| 97 | raise 'xyzzy' |
| 98 | except: |
| 99 | frame = sys.exc_traceback.tb_frame |
| 100 | while frame.f_code.co_name != 'set_trace': |
| 101 | frame = frame.f_back |
| 102 | d = 0 |
| 103 | while frame: |
| 104 | d = d + 1 |
| 105 | frame = frame.f_back |
| 106 | self.depth = d |
| 107 | sys.setprofile(self.trace_dispatch) |
| 108 | |
| 109 | def run(cmd, globals = None, locals = None): |
| 110 | Trace().run(cmd, globals, locals) |
| 111 | |
| 112 | def runcall(*func_args): |
| 113 | apply(Trace().runcall, funcargs) |
| 114 | |
| 115 | def set_trace(): |
| 116 | Trace().set_trace() |
| 117 | |
| 118 | def unset_trace(): |
| 119 | sys.setprofile(None) |