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