102 lines
2.7 KiB
Python
102 lines
2.7 KiB
Python
import inspect
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import re
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def _hook_add(func, add, name=''):
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if not hasattr(func, '_hook'):
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func._hook = []
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func._hook.append(add)
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if not hasattr(func, '_filename'):
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func._filename = func.func_code.co_filename
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if not hasattr(func, '_args'):
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argspec = inspect.getargspec(func)
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if name:
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n_args = len(argspec.args)
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if argspec.defaults:
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n_args -= len(argspec.defaults)
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if argspec.keywords:
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n_args -= 1
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if argspec.varargs:
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n_args -= 1
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if n_args != 1:
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err = '%ss must take 1 non-keyword argument (%s)' % (name,
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func.__name__)
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raise ValueError(err)
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args = []
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if argspec.defaults:
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end = bool(argspec.keywords) + bool(argspec.varargs)
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args.extend(argspec.args[-len(argspec.defaults):
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end if end else None])
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if argspec.keywords:
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args.append(0) # means kwargs present
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func._args = args
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if not hasattr(func, '_thread'): # does function run in its own thread?
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func._thread = False
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def sieve(func):
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if func.func_code.co_argcount != 5:
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raise ValueError(
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'sieves must take 5 arguments: (bot, input, func, type, args)')
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_hook_add(func, ['sieve', (func,)])
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return func
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def command(arg=None, **kwargs):
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args = {}
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def command_wrapper(func):
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args.setdefault('name', func.func_name)
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_hook_add(func, ['command', (func, args)], 'command')
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return func
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if kwargs or not inspect.isfunction(arg):
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if arg is not None:
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args['name'] = arg
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args.update(kwargs)
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return command_wrapper
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else:
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return command_wrapper(arg)
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def event(arg=None, **kwargs):
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args = kwargs
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def event_wrapper(func):
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args['name'] = func.func_name
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args.setdefault('events', ['*'])
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_hook_add(func, ['event', (func, args)], 'event')
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return func
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if inspect.isfunction(arg):
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return event_wrapper(arg, kwargs)
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else:
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if arg is not None:
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args['events'] = arg.split()
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return event_wrapper
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def singlethread(func):
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func._thread = True
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return func
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def regex(regex, flags=0, **kwargs):
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args = kwargs
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def regex_wrapper(func):
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args['name'] = func.func_name
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args['regex'] = regex
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args['re'] = re.compile(regex, flags)
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_hook_add(func, ['regex', (func, args)], 'regex')
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return func
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if inspect.isfunction(regex):
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raise ValueError("regex decorators require a regex to match against")
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else:
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return regex_wrapper
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