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from pypy.interpreter import eval
from pypy.interpreter.function import Function, Method
from pypy.interpreter.gateway import descr_function_get
from pypy.interpreter.pycode import PyCode
from pypy.interpreter.argument import Arguments
class TestMethod:
@classmethod
def compile(cls, src):
assert src.strip().startswith("def ")
compiler = cls.space.createcompiler()
code = compiler.compile(src, '<hello>', 'exec', 0).co_consts_w[0]
return Function(cls.space, code, cls.space.newdict())
def setup_class(cls):
src = """
def c(self, bar):
return bar
"""
cls.fn = cls.compile(src)
def test_get(self):
space = self.space
w_meth = descr_function_get(space, self.fn, space.wrap(5), space.type(space.wrap(5)))
meth = space.unwrap(w_meth)
assert isinstance(meth, Method)
def test_call(self):
space = self.space
w_meth = descr_function_get(space, self.fn, space.wrap(5), space.type(space.wrap(5)))
meth = space.unwrap(w_meth)
w_result = meth.call_args(Arguments(space, [space.wrap(42)]))
assert space.unwrap(w_result) == 42
def test_fail_call(self):
space = self.space
w_meth = descr_function_get(space, self.fn, space.wrap(5), space.type(space.wrap(5)))
meth = space.unwrap(w_meth)
args = Arguments(space, [space.wrap("spam"), space.wrap("egg")])
self.space.raises_w(self.space.w_TypeError, meth.call_args, args)
def test_method_get(self):
space = self.space
# Create some function for this test only
func = self.compile("def m(self): return self")
# Some shorthands
obj1 = space.wrap(23)
obj2 = space.wrap(42)
args = Arguments(space, [])
# Check method returned from func.__get__()
w_meth1 = descr_function_get(space, func, obj1, space.type(obj1))
meth1 = space.unwrap(w_meth1)
assert isinstance(meth1, Method)
assert meth1.call_args(args) == obj1
# Check method returned from method.__get__()
# --- meth1 is already bound so meth1.__get__(*) is meth1.
w_meth2 = meth1.descr_method_get(obj2, space.type(obj2))
meth2 = space.unwrap(w_meth2)
assert isinstance(meth2, Method)
assert meth2.call_args(args) == obj1
# Check method returned from unbound_method.__get__()
w_meth3 = descr_function_get(space, func, space.w_None, space.type(obj2))
meth3 = space.unwrap(w_meth3)
assert meth3 is func
class TestShortcuts(object):
def compile(self, src):
assert src.strip().startswith("def ")
compiler = self.space.createcompiler()
code = compiler.compile(src, '<hello>', 'exec', 0).co_consts_w[0]
return Function(self.space, code, self.space.newdict())
def test_call_function(self):
space = self.space
d = {}
for i in range(10):
args = "(" + ''.join(["a%d," % a for a in range(i)]) + ")"
src = """
def f%s:
return %s
""" % (args, args)
exec src in d
f = d['f']
res = f(*range(i))
fn = self.compile(src)
code = fn.code
assert fn.code.fast_natural_arity == i|PyCode.FLATPYCALL
if i < 5:
def bomb(*args):
assert False, "shortcutting should have avoided this"
code.funcrun = bomb
code.funcrun_obj = bomb
args_w = map(space.wrap, range(i))
w_res = space.call_function(fn, *args_w)
check = space.is_true(space.eq(w_res, space.wrap(res)))
assert check
def test_flatcall(self):
space = self.space
src = """
def f(a):
return a"""
fn = self.compile(src)
assert fn.code.fast_natural_arity == 1|PyCode.FLATPYCALL
def bomb(*args):
assert False, "shortcutting should have avoided this"
fn.code.funcrun = bomb
fn.code.funcrun_obj = bomb
w_3 = space.newint(3)
w_res = space.call_function(fn, w_3)
assert w_res is w_3
w_res = space.appexec([fn, w_3], """(f, x):
return f(x)
""")
assert w_res is w_3
def test_flatcall_method(self):
space = self.space
src = """
def f(self, a):
return a
"""
fn = self.compile(src)
assert fn.code.fast_natural_arity == 2|PyCode.FLATPYCALL
def bomb(*args):
assert False, "shortcutting should have avoided this"
fn.code.funcrun = bomb
fn.code.funcrun_obj = bomb
w_3 = space.newint(3)
w_res = space.appexec([fn, w_3], """(f, x):
class A(object):
m = f
y = A().m(x)
b = A().m
z = b(x)
return y is x and z is x
""")
assert space.is_true(w_res)
def test_flatcall_default_arg(self):
space = self.space
src = """
def f(a, b):
return a+b
"""
code = self.compile(src).code
fn = Function(self.space, code, self.space.newdict(),
defs_w=[space.newint(1)])
assert fn.code.fast_natural_arity == 2|eval.Code.FLATPYCALL
def bomb(*args):
assert False, "shortcutting should have avoided this"
code.funcrun = bomb
code.funcrun_obj = bomb
w_3 = space.newint(3)
w_4 = space.newint(4)
# ignore this for now
#w_res = space.call_function(fn, w_3)
# assert space.eq_w(w_res, w_4)
w_res = space.appexec([fn, w_3], """(f, x):
return f(x)
""")
assert space.eq_w(w_res, w_4)
def test_flatcall_default_arg_method(self):
space = self.space
src = """
def f(self, a, b):
return a+b
"""
code = self.compile(src).code
fn = Function(self.space, code, self.space.newdict(),
defs_w=[space.newint(1)])
assert fn.code.fast_natural_arity == 3|eval.Code.FLATPYCALL
def bomb(*args):
assert False, "shortcutting should have avoided this"
code.funcrun = bomb
code.funcrun_obj = bomb
w_3 = space.newint(3)
w_res = space.appexec([fn, w_3], """(f, x):
class A(object):
m = f
y = A().m(x)
b = A().m
z = b(x)
return y+10*z
""")
assert space.eq_w(w_res, space.wrap(44))
class TestFunction:
def test_func_defaults(self):
from pypy.interpreter import gateway
def g(w_a=None):
pass
app_g = gateway.interp2app_temp(g)
space = self.space
w_g = space.wrap(app_g)
w_defs = space.getattr(w_g, space.wrap("__defaults__"))
assert space.is_w(w_defs, space.w_None)
w_count = space.getattr(w_g, space.wrap("__defaults_count__"))
assert space.unwrap(w_count) == 1
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