Less verbose Python commands

[Daniel Colascione <daniel@censorshipresearch.org>]

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import os, sys, gdb

# Using this
def command(*init_args):
    def decorator(func):
        def init_func(self):
            gdb.Command.__init__(self, *init_args)

        def invoke_func(self, argument, from_tty):
            func(argument, from_tty)

        type('Command_' + init_args[0].replace(' ', '_'),
             (gdb.Command,),
             { '__init__': init_func,
               'invoke': invoke_func })()
        return func
    return decorator

# We can more easily write commands that look like this:
def register():
    @command('fiber', gdb.COMMAND_DATA, gdb.COMPLETE_NONE, True)
    def func(argument, from_tty):
        print "Hi, I'm a fiber prefix!"

    @command('fiber list', gdb.COMMAND_DATA)
    def func(argument, from_tty):
        print "List fibers here"

# Less verbose, isn't it?
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