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from .support import HPyTest, make_hpy_abi_fixture
class TestCPythonCompatibility(HPyTest):
hpy_abi = make_hpy_abi_fixture('with hybrid', class_fixture=True)
# One note about the supports_refcounts() in the tests below: on
# CPython, handles are actually implemented as INCREF/DECREF, so we can
# check e.g. after an HPy_Dup the refcnt is += 1. However, on PyPy they
# are implemented in a completely different way which is unrelated to the
# refcnt (this is the whole point of HPy, after all :)). So in many of the
# following tests, checking the actual result of the function doesn't
# really make sens on PyPy. We still run the functions to ensure they do
# not crash, though.
def test_abi(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
return HPyUnicode_FromString(ctx, HPY_ABI);
}
@EXPORT(f)
@INIT
""")
hpy_abi = mod.f()
expected = self.compiler.hpy_abi
if expected in ('hybrid+debug', 'hybrid+trace'):
expected = 'hybrid'
assert hpy_abi == expected
def test_frompyobject(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
PyObject *o = PyList_New(0);
Py_ssize_t initial_refcount = o->ob_refcnt;
HPy h = HPy_FromPyObject(ctx, o);
Py_ssize_t final_refcount = o->ob_refcnt;
PyList_Append(o, PyLong_FromLong(1234));
PyList_Append(o, PyLong_FromSsize_t(final_refcount -
initial_refcount));
Py_DECREF(o);
return h;
}
@EXPORT(f)
@INIT
""")
x = mod.f()
assert x[0] == 1234
assert len(x) == 2
if self.supports_refcounts():
assert x == [1234, +1]
def test_frompyobject_null(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
HPy h = HPy_FromPyObject(ctx, NULL);
if (HPy_IsNull(h)) {
return HPy_Dup(ctx, ctx->h_True);
}
else {
return HPy_Dup(ctx, ctx->h_False);
}
}
@EXPORT(f)
@INIT
""")
assert mod.f()
def test_aspyobject(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_O)
static HPy f_impl(HPyContext *ctx, HPy self, HPy arg)
{
PyObject *o = HPy_AsPyObject(ctx, arg);
long val = PyLong_AsLong(o);
Py_DecRef(o);
return HPyLong_FromLong(ctx, val*2);
}
@EXPORT(f)
@INIT
""")
assert mod.f(21) == 42
def test_aspyobject_null(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
PyObject *o = HPy_AsPyObject(ctx, HPy_NULL);
if (o == NULL) {
return HPy_Dup(ctx, ctx->h_True);
}
else {
return HPy_Dup(ctx, ctx->h_False);
}
}
@EXPORT(f)
@INIT
""")
assert mod.f()
def test_aspyobject_custom_class(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_O)
static HPy f_impl(HPyContext *ctx, HPy self, HPy arg)
{
PyObject *o = HPy_AsPyObject(ctx, arg);
PyObject *o_res = PyObject_CallMethod(o, "foo", "");
HPy h_res = HPy_FromPyObject(ctx, o_res);
Py_DecRef(o);
Py_DecRef(o_res);
return h_res;
}
@EXPORT(f)
@INIT
""")
class MyClass:
def foo(self):
return 1234
obj = MyClass()
assert mod.f(obj) == 1234
def test_hpy_close(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
PyObject *o = PyList_New(0);
HPy h = HPy_FromPyObject(ctx, o);
Py_ssize_t initial_refcount = o->ob_refcnt;
HPy_Close(ctx, h);
Py_ssize_t final_refcount = o->ob_refcnt;
Py_DECREF(o);
return HPyLong_FromLong(ctx, (long)(final_refcount -
initial_refcount));
}
@EXPORT(f)
@INIT
""")
x = mod.f()
if self.supports_refcounts():
assert x == -1
def test_hpy_dup(self):
mod = self.make_module("""
#include <Python.h>
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
PyObject *o = PyList_New(0);
HPy h = HPy_FromPyObject(ctx, o);
Py_ssize_t initial_refcount = o->ob_refcnt;
HPy h2 = HPy_Dup(ctx, h);
Py_ssize_t final_refcount = o->ob_refcnt;
HPy_Close(ctx, h);
HPy_Close(ctx, h2);
Py_DECREF(o);
return HPyLong_FromLong(ctx, (long)(final_refcount -
initial_refcount));
}
@EXPORT(f)
@INIT
""")
x = mod.f()
if self.supports_refcounts():
assert x == +1
def test_many_handles(self):
mod = self.make_module("""
#include <Python.h>
#define NUM_HANDLES 10000
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
PyObject *o = PyList_New(0);
Py_ssize_t final_refcount;
Py_ssize_t result = -42;
HPy handles[NUM_HANDLES];
int i;
Py_ssize_t initial_refcount = o->ob_refcnt;
for (i = 0; i < NUM_HANDLES; i++)
handles[i] = HPy_FromPyObject(ctx, o);
for (i = 0; i < NUM_HANDLES; i++)
if (HPy_IsNull(handles[i]))
goto error;
for (i = 0; i < NUM_HANDLES; i++)
HPy_Close(ctx, handles[i]);
final_refcount = o->ob_refcnt;
result = final_refcount - initial_refcount;
error:
return HPyLong_FromLong(ctx, (long)result);
}
@EXPORT(f)
@INIT
""")
assert mod.f() == 0
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