2013-07-20 01:28:54 +08:00
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<a href="lldb-module.html">Package lldb</a> ::
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Module embedded_interpreter
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<h1 class="epydoc">Source Code for <a href="lldb.embedded_interpreter-module.html">Module lldb.embedded_interpreter</a></h1>
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<pre class="py-src">
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2016-10-20 21:04:32 +08:00
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import sys
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if sys.version_info[0] < 3:
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import __builtin__ as builtins
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else:
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import builtins
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import code
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import lldb
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import traceback
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try:
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import readline
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import rlcompleter
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except ImportError:
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have_readline = False
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except AttributeError:
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# This exception gets hit by the rlcompleter when Linux is using
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# the readline suppression import.
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have_readline = False
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else:
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have_readline = True
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if 'libedit' in readline.__doc__:
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readline.parse_and_bind('bind ^I rl_complete')
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else:
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readline.parse_and_bind('tab: complete')
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g_builtin_override_called = False
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class LLDBQuitter(object):
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def __init__(self, name):
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self.name = name
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def __repr__(self):
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self()
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def __call__(self, code=None):
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global g_builtin_override_called
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g_builtin_override_called = True
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raise SystemExit(-1)
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def setquit():
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'''Redefine builtin functions 'quit()' and 'exit()' to print a message and raise an EOFError exception.'''
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# This function will be called prior to each interactive
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# interpreter loop or each single line, so we set the global
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# g_builtin_override_called to False so we know if a SystemExit
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# is thrown, we can catch it and tell the difference between
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# a call to "quit()" or "exit()" and something like
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# "sys.exit(123)"
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global g_builtin_override_called
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g_builtin_override_called = False
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builtins.quit = LLDBQuitter('quit')
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builtins.exit = LLDBQuitter('exit')
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# When running one line, we might place the string to run in this string
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# in case it would be hard to correctly escape a string's contents
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g_run_one_line_str = None
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def get_terminal_size(fd):
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try:
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import fcntl
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import termios
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import struct
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hw = struct.unpack('hh', fcntl.ioctl(fd, termios.TIOCGWINSZ, '1234'))
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except:
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hw = (0, 0)
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return hw
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def readfunc_stdio(prompt):
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sys.stdout.write(prompt)
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return sys.stdin.readline().rstrip()
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def run_python_interpreter(local_dict):
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# Pass in the dictionary, for continuity from one session to the next.
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setquit()
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try:
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fd = sys.stdin.fileno()
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interacted = False
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if get_terminal_size(fd)[1] == 0:
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try:
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import termios
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old = termios.tcgetattr(fd)
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if old[3] & termios.ECHO:
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# Need to turn off echoing and restore
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new = termios.tcgetattr(fd)
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new[3] = new[3] & ~termios.ECHO
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try:
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termios.tcsetattr(fd, termios.TCSADRAIN, new)
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interacted = True
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code.interact(
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banner="Python Interactive Interpreter. To exit, type 'quit()', 'exit()'.",
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readfunc=readfunc_stdio,
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local=local_dict)
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finally:
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termios.tcsetattr(fd, termios.TCSADRAIN, old)
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except:
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pass
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# Don't need to turn off echoing
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if not interacted:
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code.interact(
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banner="Python Interactive Interpreter. To exit, type 'quit()', 'exit()' or Ctrl-D.",
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readfunc=readfunc_stdio,
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local=local_dict)
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else:
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# We have a real interactive terminal
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code.interact(
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banner="Python Interactive Interpreter. To exit, type 'quit()', 'exit()' or Ctrl-D.",
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local=local_dict)
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except SystemExit as e:
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global g_builtin_override_called
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if not g_builtin_override_called:
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print('Script exited with %s' % (e))
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def run_one_line(local_dict, input_string):
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global g_run_one_line_str
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setquit()
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try:
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repl = code.InteractiveConsole(local_dict)
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if input_string:
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repl.runsource(input_string)
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elif g_run_one_line_str:
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repl.runsource(g_run_one_line_str)
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except SystemExit as e:
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global g_builtin_override_called
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if not g_builtin_override_called:
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print('Script exited with %s' % (e))
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<script type="text/javascript">
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2013-07-20 01:28:54 +08:00
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2016-10-20 21:04:32 +08:00
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2013-07-20 01:28:54 +08:00
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