Less verbose Python commands

Less verbose Python commands

[Daniel Colascione]

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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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Re: Less verbose Python commands

[Daniel Colascione]

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On 1/10/10 3:00 AM, Daniel Colascione wrote:
> [snip]

Err, this version propagates docstrings to command help too:

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,
               '__doc__': func.__doc__,
               'invoke': invoke_func })()
        return func
    return decorator

@command('tracked', COMMAND_DATA, COMPLETE_NONE, True)
def func(argument, from_tty):
    "Commands having to do with tracked things"

@command('tracked types', COMMAND_DATA)
def func(argument, from_tty):
    "List the types of objects which are tracked"
    print parse_and_eval('2+2')

# etc.
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Re: Less verbose Python commands

[Tom Tromey]

>>>>> "Daniel" == Daniel Colascione <daniel@censorshipresearch.org> writes:

Daniel> Err, this version propagates docstrings to command help too:

Nice.

Do you have an assignment on file?  If not, email me and I can get you
started on that.

To put this in we'd need to merge in the code to add a Python library to
gdb.  We'll have to do this eventually though...

Tom