125 lines
2.2 KiB
Python
125 lines
2.2 KiB
Python
"""This module includes tests of the code object representation.
|
|
|
|
>>> def f(x):
|
|
... def g(y):
|
|
... return x + y
|
|
... return g
|
|
...
|
|
|
|
>>> dump(f.func_code)
|
|
name: f
|
|
argcount: 1
|
|
kwonlyargcount: 0
|
|
names: ()
|
|
varnames: ('x', 'g')
|
|
cellvars: ('x',)
|
|
freevars: ()
|
|
nlocals: 2
|
|
flags: 3
|
|
consts: ('None', '<code object g>')
|
|
|
|
>>> dump(f(4).func_code)
|
|
name: g
|
|
argcount: 1
|
|
kwonlyargcount: 0
|
|
names: ()
|
|
varnames: ('y',)
|
|
cellvars: ()
|
|
freevars: ('x',)
|
|
nlocals: 1
|
|
flags: 19
|
|
consts: ('None',)
|
|
|
|
>>> def h(x, y):
|
|
... a = x + y
|
|
... b = x - y
|
|
... c = a * b
|
|
... return c
|
|
...
|
|
|
|
>>> dump(h.func_code)
|
|
name: h
|
|
argcount: 2
|
|
kwonlyargcount: 0
|
|
names: ()
|
|
varnames: ('x', 'y', 'a', 'b', 'c')
|
|
cellvars: ()
|
|
freevars: ()
|
|
nlocals: 5
|
|
flags: 67
|
|
consts: ('None',)
|
|
|
|
>>> def attrs(obj):
|
|
... print(obj.attr1)
|
|
... print(obj.attr2)
|
|
... print(obj.attr3)
|
|
|
|
>>> dump(attrs.func_code)
|
|
name: attrs
|
|
argcount: 1
|
|
kwonlyargcount: 0
|
|
names: ('print', 'attr1', 'attr2', 'attr3')
|
|
varnames: ('obj',)
|
|
cellvars: ()
|
|
freevars: ()
|
|
nlocals: 1
|
|
flags: 67
|
|
consts: ('None',)
|
|
|
|
>>> def optimize_away():
|
|
... 'doc string'
|
|
... 'not a docstring'
|
|
... 53
|
|
... 0x53
|
|
|
|
>>> dump(optimize_away.func_code)
|
|
name: optimize_away
|
|
argcount: 0
|
|
kwonlyargcount: 0
|
|
names: ()
|
|
varnames: ()
|
|
cellvars: ()
|
|
freevars: ()
|
|
nlocals: 0
|
|
flags: 67
|
|
consts: ("'doc string'", 'None')
|
|
|
|
>>> def keywordonly_args(a,b,*,k1):
|
|
... return a,b,k1
|
|
...
|
|
|
|
>>> dump(keywordonly_args.func_code)
|
|
name: keywordonly_args
|
|
argcount: 2
|
|
kwonlyargcount: 1
|
|
names: ()
|
|
varnames: ('a', 'b', 'k1')
|
|
cellvars: ()
|
|
freevars: ()
|
|
nlocals: 3
|
|
flags: 67
|
|
consts: ('None',)
|
|
|
|
"""
|
|
|
|
def consts(t):
|
|
"""Yield a doctest-safe sequence of object reprs."""
|
|
for elt in t:
|
|
r = repr(elt)
|
|
if r.startswith("<code object"):
|
|
yield "<code object %s>" % elt.co_name
|
|
else:
|
|
yield r
|
|
|
|
def dump(co):
|
|
"""Print out a text representation of a code object."""
|
|
for attr in ["name", "argcount", "kwonlyargcount", "names", "varnames",
|
|
"cellvars", "freevars", "nlocals", "flags"]:
|
|
print("%s: %s" % (attr, getattr(co, "co_" + attr)))
|
|
print("consts:", tuple(consts(co.co_consts)))
|
|
|
|
def test_main(verbose=None):
|
|
from test.test_support import run_doctest
|
|
from test import test_code
|
|
run_doctest(test_code, verbose)
|