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from rpython.rtyper.lltypesystem import rffi
from pypy.module.cpyext.test.test_api import BaseApiTest
from pypy.module.cpyext.pyobject import PyObject, make_ref, from_ref, decref
from pypy.module.cpyext.methodobject import PyClassMethod_New
from pypy.module.cpyext.funcobject import (
PyFunctionObject, PyCodeObject, CODE_FLAGS, PyMethod_Function,
PyMethod_Self, PyMethod_New, PyFunction_GetCode,
PyCode_NewEmpty, PyCode_GetNumFree, PyCode_Addr2Line)
from pypy.interpreter.function import Function
from pypy.interpreter.pycode import PyCode
globals().update(CODE_FLAGS)
class TestFunctionObject(BaseApiTest):
def test_function(self, space):
w_function = space.appexec([], """():
def f(): pass
return f
""")
ref = make_ref(space, w_function)
assert (from_ref(space, rffi.cast(PyObject, ref.c_ob_type)) is
space.gettypeobject(Function.typedef))
assert "f" == space.unwrap(
from_ref(space, rffi.cast(PyFunctionObject, ref).c_func_name))
decref(space, ref)
def test_method(self, space):
w_method = space.appexec([], """():
class C(list):
def method(self): pass
return C().method
""")
w_function = space.getattr(w_method, space.wrap("__func__"))
w_self = space.getattr(w_method, space.wrap("__self__"))
assert space.is_w(PyMethod_Function(space, w_method), w_function)
assert space.is_w(PyMethod_Self(space, w_method), w_self)
w_method2 = PyMethod_New(space, w_function, w_self)
assert space.eq_w(w_method, w_method2)
def test_getcode(self, space):
w_function = space.appexec([], """():
def func(x, y, z): return x
return func
""", cache=False)
w_code = PyFunction_GetCode(space, w_function)
assert w_code.co_name == "func"
ref = make_ref(space, w_code)
assert (from_ref(space, rffi.cast(PyObject, ref.c_ob_type)) is
space.gettypeobject(PyCode.typedef))
assert "func" == space.unwrap(
from_ref(space, rffi.cast(PyCodeObject, ref).c_co_name))
assert 3 == rffi.cast(PyCodeObject, ref).c_co_argcount
decref(space, ref)
def test_co_flags(self, space):
def get_flags(signature, body="pass"):
w_code = space.appexec([], """():
def func(%s): %s
return func.__code__
""" % (signature, body), cache=False)
ref = make_ref(space, w_code)
co_flags = rffi.cast(PyCodeObject, ref).c_co_flags
decref(space, ref)
return co_flags
assert get_flags("x") == CO_NESTED | CO_OPTIMIZED | CO_NEWLOCALS
assert get_flags("x, *args") & CO_VARARGS
assert get_flags("x, **kw") & CO_VARKEYWORDS
assert get_flags("x", "yield x") & CO_GENERATOR
def test_newcode(self, space):
filename = rffi.str2charp('filename')
funcname = rffi.str2charp('funcname')
w_code = PyCode_NewEmpty(space, filename, funcname, 3)
assert w_code.co_filename == 'filename'
assert w_code.co_firstlineno == 3
ref = make_ref(space, w_code)
assert "filename" == space.unwrap(
from_ref(space, rffi.cast(PyCodeObject, ref).c_co_filename))
decref(space, ref)
rffi.free_charp(filename)
rffi.free_charp(funcname)
def test_getnumfree(self, space):
w_function = space.appexec([], """():
a = 5
def method(x): return a, x
return method
""")
assert PyCode_GetNumFree(space, w_function.code) == 1
def test_classmethod(self, space):
w_function = space.appexec([], """():
def method(x): return x
return method
""")
w_class = space.call_function(space.w_type, space.wrap("C"),
space.newtuple([]), space.newdict())
w_instance = space.call_function(w_class)
# regular instance method
space.setattr(w_class, space.wrap("method"), w_function)
assert space.is_w(space.call_method(w_instance, "method"), w_instance)
# now a classmethod
w_classmethod = PyClassMethod_New(space, w_function)
space.setattr(w_class, space.wrap("classmethod"), w_classmethod)
assert space.is_w(
space.call_method(w_instance, "classmethod"), w_class)
def test_addr2line(self, space):
w_function = space.appexec([], """():
def func():
x = a + b
return x
return func
""", cache=False)
w_code = PyFunction_GetCode(space, w_function)
assert PyCode_Addr2Line(space, w_code, 0) == 3
assert PyCode_Addr2Line(space, w_code, 8) == 4
assert PyCode_Addr2Line(space, w_code, -1) == -1
assert PyCode_Addr2Line(space, w_code, 100) == -1
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