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from .support import HPyTest
class TestModule(HPyTest):
def test_HPyModule_simple(self):
"""
The simplest fully declarative module creation.
"""
mod = self.make_module("""
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
return HPyLong_FromLong(ctx, 42);
}
static HPyDef *moduledefs[] = { &f, NULL };
static HPyModuleDef moduledef = {
.doc = "Some doc",
.size = 0,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
import sys
ISPYPY = "__pypy__" in sys.modules
if not ISPYPY:
# see https://github.com/hpyproject/hpy/issues/456
assert mod.__name__ == mod.__spec__.name
assert mod.__doc__ == "Some doc"
assert mod.f() == 42
def test_HPyModule_custom_exec(self):
"""
Module that defines several exec slots. HPy specifies that the slots
will be executed in declaration order. Exec slots can add new types,
and other objects into the module. They can also initialize other
objects. The exec slots will be called on every new instance of the
module, for example, when it is imported in several subinterpreters.
"""
mod = self.make_module("""
HPyDef_SLOT(exec1, HPy_mod_exec)
static int exec1_impl(HPyContext *ctx, HPy mod)
{
HPy list = HPyList_New(ctx, 0);
if (HPy_IsNull(list))
return -1;
HPy_SetAttr_s(ctx, mod, "data", list);
HPy_Close(ctx, list);
return 0;
}
HPyDef_SLOT(exec2, HPy_mod_exec)
static int exec2_impl(HPyContext *ctx, HPy mod)
{
HPy list = HPy_GetAttr_s(ctx, mod, "data");
if (HPy_IsNull(list))
return -1;
if (HPy_Length(ctx, list) != 0) {
HPyErr_SetString(ctx, ctx->h_RuntimeError, "Unexpected: len(list) != 0");
return -1;
}
HPy item = HPyLong_FromLong(ctx, 42);
HPyList_Append(ctx, list, item);
HPy_Close(ctx, item);
HPy_Close(ctx, list);
return 0;
}
static HPyDef *moduledefs[] = {
&exec1,
&exec2,
NULL
};
static HPyModuleDef moduledef = {
.doc = "Some doc",
.size = 0,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
assert mod.data == [42]
def test_HPyModule_custom_create_returns_non_module(self):
"""
Module that defines create slot that returns non module object. This
is, for the time being, the only supported way to implement the module
'create' slot. HPy intentionally does not expose direct API to create
a module object. Module objects are created for the extension by the
runtime and the extension can only populate that module object in the
init slots.
"""
import types
mod = self.make_module("""
HPyDef_SLOT(create, HPy_mod_create)
static HPy create_impl(HPyContext *ctx, HPy spec)
{
HPy result = HPy_NULL, dict = HPy_NULL, ns_type = HPy_NULL;
HPy types = HPyImport_ImportModule(ctx, "types");
if (HPy_IsNull(types))
return HPy_NULL;
ns_type = HPy_GetAttr_s(ctx, types, "SimpleNamespace");
if (HPy_IsNull(types))
goto cleanup;
dict = HPyDict_New(ctx);
HPy_SetItem_s(ctx, dict, "spec", spec);
result = HPy_CallTupleDict(ctx, ns_type, HPy_NULL, dict);
if (HPy_IsNull(result))
goto cleanup;
cleanup:
HPy_Close(ctx, dict);
HPy_Close(ctx, types);
HPy_Close(ctx, ns_type);
return result;
}
static HPyDef *moduledefs[] = {
&create,
NULL
};
static HPyModuleDef moduledef = {
.doc = NULL,
.size = 0,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
assert isinstance(mod, types.SimpleNamespace)
assert mod.spec is mod.__spec__
def test_HPyModule_error_when_create_returns_module(self):
"""
The HPy_mod_create slot cannot return a builtin module object.
HPy does not expose any API to create builtin module objects and, until
there are any actual use-cases, the purpose of the 'create' slot is to
create non-builtin-module objects.
"""
import pytest
expected_message = "HPy_mod_create slot returned a builtin module " \
"object. This is currently not supported."
with pytest.raises(SystemError, match=expected_message):
self.make_module("""
HPyDef_SLOT(create, HPy_mod_create)
static HPy create_impl(HPyContext *ctx, HPy spec)
{
return HPyImport_ImportModule(ctx, "types");
}
static HPyDef *moduledefs[] = {
&create,
NULL
};
static HPyModuleDef moduledef = {
.doc = NULL,
.size = 0,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
def test_HPyModule_create_raises(self):
import pytest
with pytest.raises(RuntimeError, match="Test error"):
self.make_module("""
HPyDef_SLOT(create, HPy_mod_create)
static HPy create_impl(HPyContext *ctx, HPy spec)
{
HPyErr_SetString(ctx, ctx->h_RuntimeError, "Test error");
return HPy_NULL;
}
static HPyDef *moduledefs[] = {
&create,
NULL
};
static HPyModuleDef moduledef = {
.doc = NULL,
.size = 0,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
def test_HPyModule_create_and_nondefault_values(self):
import pytest
expected_message = r'^HPyModuleDef defines a HPy_mod_create slot.*'
with pytest.raises(SystemError, match=expected_message):
self.make_module("""
HPyDef_SLOT(create, HPy_mod_create)
static HPy create_impl(HPyContext *ctx, HPy spec)
{
HPyErr_SetString(ctx, ctx->h_RuntimeError, "Test error");
return HPy_NULL;
}
static HPyDef *moduledefs[] = {
&create,
NULL
};
static HPyModuleDef moduledef = {
.doc = "Some doc - this is non-default",
.size = 0,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
def test_HPyModule_create_and_exec_slots(self):
import pytest
expected_message = r'^HPyModuleDef defines a HPy_mod_create slot.*'
with pytest.raises(SystemError, match=expected_message):
self.make_module("""
HPyDef_SLOT(create, HPy_mod_create)
static HPy create_impl(HPyContext *ctx, HPy spec)
{
HPyErr_SetString(ctx, ctx->h_RuntimeError, "Test error");
return HPy_NULL;
}
HPyDef_SLOT(exec, HPy_mod_exec)
static int exec_impl(HPyContext *ctx, HPy mod)
{
return 0;
}
static HPyDef *moduledefs[] = {
&create,
&exec,
NULL
};
static HPyModuleDef moduledef = {
.doc = NULL,
.size = 0,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
def test_HPyModule_negative_size(self):
"""
The simplest fully declarative module creation.
"""
import pytest
expected_message = "HPy does not permit HPyModuleDef.size < 0"
with pytest.raises(SystemError, match=expected_message):
self.make_module("""
HPyDef_METH(f, "f", HPyFunc_NOARGS)
static HPy f_impl(HPyContext *ctx, HPy self)
{
return HPyLong_FromLong(ctx, 42);
}
static HPyDef *moduledefs[] = { &f, NULL };
static HPyModuleDef moduledef = {
.doc = "Some doc",
.size = -1,
.legacy_methods = NULL,
.defines = moduledefs,
.globals = NULL,
};
@HPy_MODINIT(moduledef)
""")
|
