Mercurial > hg > pyloader
annotate pyloader/invoke.py @ 20:057ccfe310b2
finish basic form of .ini factory - that was easy
author | Jeff Hammel <jhammel@mozilla.com> |
---|---|
date | Mon, 06 Jun 2011 07:33:37 -0700 |
parents | a825f00fe062 |
children | efb7a8a189e8 |
rev | line source |
---|---|
2
6cb7696edc4d
add some more stuff for string loady type things and rearrange structure
Jeff Hammel <jhammel@mozilla.com>
parents:
diff
changeset
|
1 import inspect |
4
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
2 import sys |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
3 from cast import cast |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
4 from cast import str2args |
2
6cb7696edc4d
add some more stuff for string loady type things and rearrange structure
Jeff Hammel <jhammel@mozilla.com>
parents:
diff
changeset
|
5 |
5
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
6 def strcall(obj, *args, **kwargs): |
2
6cb7696edc4d
add some more stuff for string loady type things and rearrange structure
Jeff Hammel <jhammel@mozilla.com>
parents:
diff
changeset
|
7 """call a thing with string arguments""" |
6cb7696edc4d
add some more stuff for string loady type things and rearrange structure
Jeff Hammel <jhammel@mozilla.com>
parents:
diff
changeset
|
8 inspected = obj |
6cb7696edc4d
add some more stuff for string loady type things and rearrange structure
Jeff Hammel <jhammel@mozilla.com>
parents:
diff
changeset
|
9 if inspect.isclass(obj): |
6cb7696edc4d
add some more stuff for string loady type things and rearrange structure
Jeff Hammel <jhammel@mozilla.com>
parents:
diff
changeset
|
10 inspected = obj.__init__ # inspect the ctor |
4
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
11 try: |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
12 argspec = inspect.getargspec(inspected) |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
13 except TypeError: |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
14 argspec = None |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
15 if argspec is None: |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
16 args = [cast(i) for i in args] |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
17 kwargs = dict([(key, cast(value)) for key, value in kwargs.items()]) |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
18 else: |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
19 # TODO: get values from argspec |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
20 args = [cast(i) for i in args] |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
21 kwargs = dict([(key, cast(value)) for key, value in kwargs.items()]) |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
22 return obj(*args, **kwargs) |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
23 |
5
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
24 def call(obj, **kwargs): |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
25 """ |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
26 call an object with the subset of kwargs appropriate to the object. |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
27 this assumes that the obj does not take **kwargs |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
28 """ |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
29 inspected = obj |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
30 if inspect.isclass(obj): |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
31 inspected = obj.__init__ # inspect the ctor |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
32 args = inspect.getargspec(inspected).args[1:] |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
33 else: |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
34 args = inspect.getargspec(obj).args[:] |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
35 kw = {} # kwargs to invoke obj with |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
36 for arg in args: |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
37 if arg in kwargs: |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
38 kw[arg] = kwargs[arg] |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
39 return obj(**kw) |
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
40 |
4
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
41 def main(args=sys.argv[1:]): |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
42 """CLI entry point""" |
3 | 43 from loader import load |
44 from optparse import OptionParser | |
45 usage = '%prog Object arg1=value1 arg2=value2 [...]' | |
46 description = 'invoke an Object given string arguments' | |
47 parser = OptionParser(usage=usage, description=description) | |
48 if not args: | |
49 parser.print_usage() | |
50 parser.exit() | |
51 obj = load(args[0]) | |
4
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
52 obj_args, obj_kwargs = str2args(' '.join(args[1:])) |
5
a825f00fe062
add a different call method, rename the old one, and have a test for it
Jeff Hammel <jhammel@mozilla.com>
parents:
4
diff
changeset
|
53 print strcall(obj, *obj_args, **obj_kwargs) |
4
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
54 |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
55 if __name__ == '__main__': |
5ce55f6c8964
invokation works in the barest sense
Jeff Hammel <jhammel@mozilla.com>
parents:
3
diff
changeset
|
56 main() |