summaryrefslogtreecommitdiffstats
path: root/python/google/protobuf/pyext/message.cc
diff options
context:
space:
mode:
Diffstat (limited to 'python/google/protobuf/pyext/message.cc')
-rw-r--r--python/google/protobuf/pyext/message.cc2561
1 files changed, 2561 insertions, 0 deletions
diff --git a/python/google/protobuf/pyext/message.cc b/python/google/protobuf/pyext/message.cc
new file mode 100644
index 0000000..9fb7083
--- /dev/null
+++ b/python/google/protobuf/pyext/message.cc
@@ -0,0 +1,2561 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: anuraag@google.com (Anuraag Agrawal)
+// Author: tibell@google.com (Johan Tibell)
+
+#include <google/protobuf/pyext/message.h>
+
+#include <memory>
+#ifndef _SHARED_PTR_H
+#include <google/protobuf/stubs/shared_ptr.h>
+#endif
+#include <string>
+#include <vector>
+
+#ifndef PyVarObject_HEAD_INIT
+#define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
+#endif
+#ifndef Py_TYPE
+#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
+#endif
+#include <google/protobuf/descriptor.pb.h>
+#include <google/protobuf/stubs/common.h>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/dynamic_message.h>
+#include <google/protobuf/message.h>
+#include <google/protobuf/text_format.h>
+#include <google/protobuf/pyext/descriptor.h>
+#include <google/protobuf/pyext/extension_dict.h>
+#include <google/protobuf/pyext/repeated_composite_container.h>
+#include <google/protobuf/pyext/repeated_scalar_container.h>
+#include <google/protobuf/pyext/scoped_pyobject_ptr.h>
+
+#if PY_MAJOR_VERSION >= 3
+ #define PyInt_Check PyLong_Check
+ #define PyInt_AsLong PyLong_AsLong
+ #define PyInt_FromLong PyLong_FromLong
+ #define PyInt_FromSize_t PyLong_FromSize_t
+ #define PyString_Check PyUnicode_Check
+ #define PyString_FromString PyUnicode_FromString
+ #define PyString_FromStringAndSize PyUnicode_FromStringAndSize
+ #if PY_VERSION_HEX < 0x03030000
+ #error "Python 3.0 - 3.2 are not supported."
+ #else
+ #define PyString_AsString(ob) \
+ (PyUnicode_Check(ob)? PyUnicode_AsUTF8(ob): PyBytes_AS_STRING(ob))
+ #endif
+#endif
+
+namespace google {
+namespace protobuf {
+namespace python {
+
+// Forward declarations
+namespace cmessage {
+static PyObject* GetDescriptor(CMessage* self, PyObject* name);
+static string GetMessageName(CMessage* self);
+int InternalReleaseFieldByDescriptor(
+ const google::protobuf::FieldDescriptor* field_descriptor,
+ PyObject* composite_field,
+ google::protobuf::Message* parent_message);
+} // namespace cmessage
+
+// ---------------------------------------------------------------------
+// Visiting the composite children of a CMessage
+
+struct ChildVisitor {
+ // Returns 0 on success, -1 on failure.
+ int VisitRepeatedCompositeContainer(RepeatedCompositeContainer* container) {
+ return 0;
+ }
+
+ // Returns 0 on success, -1 on failure.
+ int VisitRepeatedScalarContainer(RepeatedScalarContainer* container) {
+ return 0;
+ }
+
+ // Returns 0 on success, -1 on failure.
+ int VisitCMessage(CMessage* cmessage,
+ const google::protobuf::FieldDescriptor* field_descriptor) {
+ return 0;
+ }
+};
+
+// Apply a function to a composite field. Does nothing if child is of
+// non-composite type.
+template<class Visitor>
+static int VisitCompositeField(const FieldDescriptor* descriptor,
+ PyObject* child,
+ Visitor visitor) {
+ if (descriptor->label() == google::protobuf::FieldDescriptor::LABEL_REPEATED) {
+ if (descriptor->cpp_type() == google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ RepeatedCompositeContainer* container =
+ reinterpret_cast<RepeatedCompositeContainer*>(child);
+ if (visitor.VisitRepeatedCompositeContainer(container) == -1)
+ return -1;
+ } else {
+ RepeatedScalarContainer* container =
+ reinterpret_cast<RepeatedScalarContainer*>(child);
+ if (visitor.VisitRepeatedScalarContainer(container) == -1)
+ return -1;
+ }
+ } else if (descriptor->cpp_type() ==
+ google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ CMessage* cmsg = reinterpret_cast<CMessage*>(child);
+ if (visitor.VisitCMessage(cmsg, descriptor) == -1)
+ return -1;
+ }
+ // The ExtensionDict might contain non-composite fields, which we
+ // skip here.
+ return 0;
+}
+
+// Visit each composite field and extension field of this CMessage.
+// Returns -1 on error and 0 on success.
+template<class Visitor>
+int ForEachCompositeField(CMessage* self, Visitor visitor) {
+ Py_ssize_t pos = 0;
+ PyObject* key;
+ PyObject* field;
+
+ // Visit normal fields.
+ while (PyDict_Next(self->composite_fields, &pos, &key, &field)) {
+ PyObject* cdescriptor = cmessage::GetDescriptor(self, key);
+ if (cdescriptor != NULL) {
+ const google::protobuf::FieldDescriptor* descriptor =
+ reinterpret_cast<CFieldDescriptor*>(cdescriptor)->descriptor;
+ if (VisitCompositeField(descriptor, field, visitor) == -1)
+ return -1;
+ }
+ }
+
+ // Visit extension fields.
+ if (self->extensions != NULL) {
+ while (PyDict_Next(self->extensions->values, &pos, &key, &field)) {
+ CFieldDescriptor* cdescriptor =
+ extension_dict::InternalGetCDescriptorFromExtension(key);
+ if (cdescriptor == NULL)
+ return -1;
+ if (VisitCompositeField(cdescriptor->descriptor, field, visitor) == -1)
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+// ---------------------------------------------------------------------
+
+// Constants used for integer type range checking.
+PyObject* kPythonZero;
+PyObject* kint32min_py;
+PyObject* kint32max_py;
+PyObject* kuint32max_py;
+PyObject* kint64min_py;
+PyObject* kint64max_py;
+PyObject* kuint64max_py;
+
+PyObject* EnumTypeWrapper_class;
+PyObject* EncodeError_class;
+PyObject* DecodeError_class;
+PyObject* PickleError_class;
+
+// Constant PyString values used for GetAttr/GetItem.
+static PyObject* kDESCRIPTOR;
+static PyObject* k__descriptors;
+static PyObject* kfull_name;
+static PyObject* kname;
+static PyObject* kmessage_type;
+static PyObject* kis_extendable;
+static PyObject* kextensions_by_name;
+static PyObject* k_extensions_by_name;
+static PyObject* k_extensions_by_number;
+static PyObject* k_concrete_class;
+static PyObject* kfields_by_name;
+
+static CDescriptorPool* descriptor_pool;
+
+/* Is 64bit */
+void FormatTypeError(PyObject* arg, char* expected_types) {
+ PyObject* repr = PyObject_Repr(arg);
+ if (repr) {
+ PyErr_Format(PyExc_TypeError,
+ "%.100s has type %.100s, but expected one of: %s",
+ PyString_AsString(repr),
+ Py_TYPE(arg)->tp_name,
+ expected_types);
+ Py_DECREF(repr);
+ }
+}
+
+template<class T>
+bool CheckAndGetInteger(
+ PyObject* arg, T* value, PyObject* min, PyObject* max) {
+ bool is_long = PyLong_Check(arg);
+#if PY_MAJOR_VERSION < 3
+ if (!PyInt_Check(arg) && !is_long) {
+ FormatTypeError(arg, "int, long");
+ return false;
+ }
+ if (PyObject_Compare(min, arg) > 0 || PyObject_Compare(max, arg) < 0) {
+#else
+ if (!is_long) {
+ FormatTypeError(arg, "int");
+ return false;
+ }
+ if (PyObject_RichCompareBool(min, arg, Py_LE) != 1 ||
+ PyObject_RichCompareBool(max, arg, Py_GE) != 1) {
+#endif
+ PyObject *s = PyObject_Str(arg);
+ if (s) {
+ PyErr_Format(PyExc_ValueError,
+ "Value out of range: %s",
+ PyString_AsString(s));
+ Py_DECREF(s);
+ }
+ return false;
+ }
+#if PY_MAJOR_VERSION < 3
+ if (!is_long) {
+ *value = static_cast<T>(PyInt_AsLong(arg));
+ } else // NOLINT
+#endif
+ {
+ if (min == kPythonZero) {
+ *value = static_cast<T>(PyLong_AsUnsignedLongLong(arg));
+ } else {
+ *value = static_cast<T>(PyLong_AsLongLong(arg));
+ }
+ }
+ return true;
+}
+
+// These are referenced by repeated_scalar_container, and must
+// be explicitly instantiated.
+template bool CheckAndGetInteger<int32>(
+ PyObject*, int32*, PyObject*, PyObject*);
+template bool CheckAndGetInteger<int64>(
+ PyObject*, int64*, PyObject*, PyObject*);
+template bool CheckAndGetInteger<uint32>(
+ PyObject*, uint32*, PyObject*, PyObject*);
+template bool CheckAndGetInteger<uint64>(
+ PyObject*, uint64*, PyObject*, PyObject*);
+
+bool CheckAndGetDouble(PyObject* arg, double* value) {
+ if (!PyInt_Check(arg) && !PyLong_Check(arg) &&
+ !PyFloat_Check(arg)) {
+ FormatTypeError(arg, "int, long, float");
+ return false;
+ }
+ *value = PyFloat_AsDouble(arg);
+ return true;
+}
+
+bool CheckAndGetFloat(PyObject* arg, float* value) {
+ double double_value;
+ if (!CheckAndGetDouble(arg, &double_value)) {
+ return false;
+ }
+ *value = static_cast<float>(double_value);
+ return true;
+}
+
+bool CheckAndGetBool(PyObject* arg, bool* value) {
+ if (!PyInt_Check(arg) && !PyBool_Check(arg) && !PyLong_Check(arg)) {
+ FormatTypeError(arg, "int, long, bool");
+ return false;
+ }
+ *value = static_cast<bool>(PyInt_AsLong(arg));
+ return true;
+}
+
+bool CheckAndSetString(
+ PyObject* arg, google::protobuf::Message* message,
+ const google::protobuf::FieldDescriptor* descriptor,
+ const google::protobuf::Reflection* reflection,
+ bool append,
+ int index) {
+ GOOGLE_DCHECK(descriptor->type() == google::protobuf::FieldDescriptor::TYPE_STRING ||
+ descriptor->type() == google::protobuf::FieldDescriptor::TYPE_BYTES);
+ if (descriptor->type() == google::protobuf::FieldDescriptor::TYPE_STRING) {
+ if (!PyBytes_Check(arg) && !PyUnicode_Check(arg)) {
+ FormatTypeError(arg, "bytes, unicode");
+ return false;
+ }
+
+ if (PyBytes_Check(arg)) {
+ PyObject* unicode = PyUnicode_FromEncodedObject(arg, "ascii", NULL);
+ if (unicode == NULL) {
+ PyObject* repr = PyObject_Repr(arg);
+ PyErr_Format(PyExc_ValueError,
+ "%s has type str, but isn't in 7-bit ASCII "
+ "encoding. Non-ASCII strings must be converted to "
+ "unicode objects before being added.",
+ PyString_AsString(repr));
+ Py_DECREF(repr);
+ return false;
+ } else {
+ Py_DECREF(unicode);
+ }
+ }
+ } else if (!PyBytes_Check(arg)) {
+ FormatTypeError(arg, "bytes");
+ return false;
+ }
+
+ PyObject* encoded_string = NULL;
+ if (descriptor->type() == google::protobuf::FieldDescriptor::TYPE_STRING) {
+ if (PyBytes_Check(arg)) {
+#if PY_MAJOR_VERSION < 3
+ encoded_string = PyString_AsEncodedObject(arg, "utf-8", NULL);
+#else
+ encoded_string = arg; // Already encoded.
+ Py_INCREF(encoded_string);
+#endif
+ } else {
+ encoded_string = PyUnicode_AsEncodedObject(arg, "utf-8", NULL);
+ }
+ } else {
+ // In this case field type is "bytes".
+ encoded_string = arg;
+ Py_INCREF(encoded_string);
+ }
+
+ if (encoded_string == NULL) {
+ return false;
+ }
+
+ char* value;
+ Py_ssize_t value_len;
+ if (PyBytes_AsStringAndSize(encoded_string, &value, &value_len) < 0) {
+ Py_DECREF(encoded_string);
+ return false;
+ }
+
+ string value_string(value, value_len);
+ if (append) {
+ reflection->AddString(message, descriptor, value_string);
+ } else if (index < 0) {
+ reflection->SetString(message, descriptor, value_string);
+ } else {
+ reflection->SetRepeatedString(message, descriptor, index, value_string);
+ }
+ Py_DECREF(encoded_string);
+ return true;
+}
+
+PyObject* ToStringObject(
+ const google::protobuf::FieldDescriptor* descriptor, string value) {
+ if (descriptor->type() != google::protobuf::FieldDescriptor::TYPE_STRING) {
+ return PyBytes_FromStringAndSize(value.c_str(), value.length());
+ }
+
+ PyObject* result = PyUnicode_DecodeUTF8(value.c_str(), value.length(), NULL);
+ // If the string can't be decoded in UTF-8, just return a string object that
+ // contains the raw bytes. This can't happen if the value was assigned using
+ // the members of the Python message object, but can happen if the values were
+ // parsed from the wire (binary).
+ if (result == NULL) {
+ PyErr_Clear();
+ result = PyBytes_FromStringAndSize(value.c_str(), value.length());
+ }
+ return result;
+}
+
+google::protobuf::DynamicMessageFactory* global_message_factory;
+
+namespace cmessage {
+
+static int MaybeReleaseOverlappingOneofField(
+ CMessage* cmessage,
+ const google::protobuf::FieldDescriptor* field) {
+#ifdef GOOGLE_PROTOBUF_HAS_ONEOF
+ google::protobuf::Message* message = cmessage->message;
+ const google::protobuf::Reflection* reflection = message->GetReflection();
+ if (!field->containing_oneof() ||
+ !reflection->HasOneof(*message, field->containing_oneof()) ||
+ reflection->HasField(*message, field)) {
+ // No other field in this oneof, no need to release.
+ return 0;
+ }
+
+ const OneofDescriptor* oneof = field->containing_oneof();
+ const FieldDescriptor* existing_field =
+ reflection->GetOneofFieldDescriptor(*message, oneof);
+ if (existing_field->cpp_type() != google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ // Non-message fields don't need to be released.
+ return 0;
+ }
+ const char* field_name = existing_field->name().c_str();
+ PyObject* child_message = PyDict_GetItemString(
+ cmessage->composite_fields, field_name);
+ if (child_message == NULL) {
+ // No python reference to this field so no need to release.
+ return 0;
+ }
+
+ if (InternalReleaseFieldByDescriptor(
+ existing_field, child_message, message) < 0) {
+ return -1;
+ }
+ return PyDict_DelItemString(cmessage->composite_fields, field_name);
+#else
+ return 0;
+#endif
+}
+
+// ---------------------------------------------------------------------
+// Making a message writable
+
+static google::protobuf::Message* GetMutableMessage(
+ CMessage* parent,
+ const google::protobuf::FieldDescriptor* parent_field) {
+ google::protobuf::Message* parent_message = parent->message;
+ const google::protobuf::Reflection* reflection = parent_message->GetReflection();
+ if (MaybeReleaseOverlappingOneofField(parent, parent_field) < 0) {
+ return NULL;
+ }
+ return reflection->MutableMessage(
+ parent_message, parent_field, global_message_factory);
+}
+
+struct FixupMessageReference : public ChildVisitor {
+ // message must outlive this object.
+ explicit FixupMessageReference(google::protobuf::Message* message) :
+ message_(message) {}
+
+ int VisitRepeatedCompositeContainer(RepeatedCompositeContainer* container) {
+ container->message = message_;
+ return 0;
+ }
+
+ int VisitRepeatedScalarContainer(RepeatedScalarContainer* container) {
+ container->message = message_;
+ return 0;
+ }
+
+ private:
+ google::protobuf::Message* message_;
+};
+
+int AssureWritable(CMessage* self) {
+ if (self == NULL || !self->read_only) {
+ return 0;
+ }
+
+ if (self->parent == NULL) {
+ // If parent is NULL but we are trying to modify a read-only message, this
+ // is a reference to a constant default instance that needs to be replaced
+ // with a mutable top-level message.
+ const Message* prototype = global_message_factory->GetPrototype(
+ self->message->GetDescriptor());
+ self->message = prototype->New();
+ self->owner.reset(self->message);
+ } else {
+ // Otherwise, we need a mutable child message.
+ if (AssureWritable(self->parent) == -1)
+ return -1;
+
+ // Make self->message writable.
+ google::protobuf::Message* parent_message = self->parent->message;
+ google::protobuf::Message* mutable_message = GetMutableMessage(
+ self->parent,
+ self->parent_field->descriptor);
+ if (mutable_message == NULL) {
+ return -1;
+ }
+ self->message = mutable_message;
+ }
+ self->read_only = false;
+
+ // When a CMessage is made writable its Message pointer is updated
+ // to point to a new mutable Message. When that happens we need to
+ // update any references to the old, read-only CMessage. There are
+ // three places such references occur: RepeatedScalarContainer,
+ // RepeatedCompositeContainer, and ExtensionDict.
+ if (self->extensions != NULL)
+ self->extensions->message = self->message;
+ if (ForEachCompositeField(self, FixupMessageReference(self->message)) == -1)
+ return -1;
+
+ return 0;
+}
+
+// --- Globals:
+
+static PyObject* GetDescriptor(CMessage* self, PyObject* name) {
+ PyObject* descriptors =
+ PyDict_GetItem(Py_TYPE(self)->tp_dict, k__descriptors);
+ if (descriptors == NULL) {
+ PyErr_SetString(PyExc_TypeError, "No __descriptors");
+ return NULL;
+ }
+
+ return PyDict_GetItem(descriptors, name);
+}
+
+static const google::protobuf::Message* CreateMessage(const char* message_type) {
+ string message_name(message_type);
+ const google::protobuf::Descriptor* descriptor =
+ GetDescriptorPool()->FindMessageTypeByName(message_name);
+ if (descriptor == NULL) {
+ PyErr_SetString(PyExc_TypeError, message_type);
+ return NULL;
+ }
+ return global_message_factory->GetPrototype(descriptor);
+}
+
+// If cmessage_list is not NULL, this function releases values into the
+// container CMessages instead of just removing. Repeated composite container
+// needs to do this to make sure CMessages stay alive if they're still
+// referenced after deletion. Repeated scalar container doesn't need to worry.
+int InternalDeleteRepeatedField(
+ google::protobuf::Message* message,
+ const google::protobuf::FieldDescriptor* field_descriptor,
+ PyObject* slice,
+ PyObject* cmessage_list) {
+ Py_ssize_t length, from, to, step, slice_length;
+ const google::protobuf::Reflection* reflection = message->GetReflection();
+ int min, max;
+ length = reflection->FieldSize(*message, field_descriptor);
+
+ if (PyInt_Check(slice) || PyLong_Check(slice)) {
+ from = to = PyLong_AsLong(slice);
+ if (from < 0) {
+ from = to = length + from;
+ }
+ step = 1;
+ min = max = from;
+
+ // Range check.
+ if (from < 0 || from >= length) {
+ PyErr_Format(PyExc_IndexError, "list assignment index out of range");
+ return -1;
+ }
+ } else if (PySlice_Check(slice)) {
+ from = to = step = slice_length = 0;
+ PySlice_GetIndicesEx(
+#if PY_MAJOR_VERSION < 3
+ reinterpret_cast<PySliceObject*>(slice),
+#else
+ slice,
+#endif
+ length, &from, &to, &step, &slice_length);
+ if (from < to) {
+ min = from;
+ max = to - 1;
+ } else {
+ min = to + 1;
+ max = from;
+ }
+ } else {
+ PyErr_SetString(PyExc_TypeError, "list indices must be integers");
+ return -1;
+ }
+
+ Py_ssize_t i = from;
+ std::vector<bool> to_delete(length, false);
+ while (i >= min && i <= max) {
+ to_delete[i] = true;
+ i += step;
+ }
+
+ to = 0;
+ for (i = 0; i < length; ++i) {
+ if (!to_delete[i]) {
+ if (i != to) {
+ reflection->SwapElements(message, field_descriptor, i, to);
+ if (cmessage_list != NULL) {
+ // If a list of cmessages is passed in (i.e. from a repeated
+ // composite container), swap those as well to correspond to the
+ // swaps in the underlying message so they're in the right order
+ // when we start releasing.
+ PyObject* tmp = PyList_GET_ITEM(cmessage_list, i);
+ PyList_SET_ITEM(cmessage_list, i,
+ PyList_GET_ITEM(cmessage_list, to));
+ PyList_SET_ITEM(cmessage_list, to, tmp);
+ }
+ }
+ ++to;
+ }
+ }
+
+ while (i > to) {
+ if (cmessage_list == NULL) {
+ reflection->RemoveLast(message, field_descriptor);
+ } else {
+ CMessage* last_cmessage = reinterpret_cast<CMessage*>(
+ PyList_GET_ITEM(cmessage_list, PyList_GET_SIZE(cmessage_list) - 1));
+ repeated_composite_container::ReleaseLastTo(
+ field_descriptor, message, last_cmessage);
+ if (PySequence_DelItem(cmessage_list, -1) < 0) {
+ return -1;
+ }
+ }
+ --i;
+ }
+
+ return 0;
+}
+
+int InitAttributes(CMessage* self, PyObject* arg, PyObject* kwargs) {
+ ScopedPyObjectPtr descriptor;
+ if (arg == NULL) {
+ descriptor.reset(
+ PyObject_GetAttr(reinterpret_cast<PyObject*>(self), kDESCRIPTOR));
+ if (descriptor == NULL) {
+ return NULL;
+ }
+ } else {
+ descriptor.reset(arg);
+ descriptor.inc();
+ }
+ ScopedPyObjectPtr is_extendable(PyObject_GetAttr(descriptor, kis_extendable));
+ if (is_extendable == NULL) {
+ return NULL;
+ }
+ int retcode = PyObject_IsTrue(is_extendable);
+ if (retcode == -1) {
+ return NULL;
+ }
+ if (retcode) {
+ PyObject* py_extension_dict = PyObject_CallObject(
+ reinterpret_cast<PyObject*>(&ExtensionDict_Type), NULL);
+ if (py_extension_dict == NULL) {
+ return NULL;
+ }
+ ExtensionDict* extension_dict = reinterpret_cast<ExtensionDict*>(
+ py_extension_dict);
+ extension_dict->parent = self;
+ extension_dict->message = self->message;
+ self->extensions = extension_dict;
+ }
+
+ if (kwargs == NULL) {
+ return 0;
+ }
+
+ Py_ssize_t pos = 0;
+ PyObject* name;
+ PyObject* value;
+ while (PyDict_Next(kwargs, &pos, &name, &value)) {
+ if (!PyString_Check(name)) {
+ PyErr_SetString(PyExc_ValueError, "Field name must be a string");
+ return -1;
+ }
+ PyObject* py_cdescriptor = GetDescriptor(self, name);
+ if (py_cdescriptor == NULL) {
+ PyErr_Format(PyExc_ValueError, "Protocol message has no \"%s\" field.",
+ PyString_AsString(name));
+ return -1;
+ }
+ const google::protobuf::FieldDescriptor* descriptor =
+ reinterpret_cast<CFieldDescriptor*>(py_cdescriptor)->descriptor;
+ if (descriptor->label() == google::protobuf::FieldDescriptor::LABEL_REPEATED) {
+ ScopedPyObjectPtr container(GetAttr(self, name));
+ if (container == NULL) {
+ return -1;
+ }
+ if (descriptor->cpp_type() == google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ if (repeated_composite_container::Extend(
+ reinterpret_cast<RepeatedCompositeContainer*>(container.get()),
+ value)
+ == NULL) {
+ return -1;
+ }
+ } else {
+ if (repeated_scalar_container::Extend(
+ reinterpret_cast<RepeatedScalarContainer*>(container.get()),
+ value) ==
+ NULL) {
+ return -1;
+ }
+ }
+ } else if (descriptor->cpp_type() ==
+ google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ ScopedPyObjectPtr message(GetAttr(self, name));
+ if (message == NULL) {
+ return -1;
+ }
+ if (MergeFrom(reinterpret_cast<CMessage*>(message.get()),
+ value) == NULL) {
+ return -1;
+ }
+ } else {
+ if (SetAttr(self, name, value) < 0) {
+ return -1;
+ }
+ }
+ }
+ return 0;
+}
+
+static PyObject* New(PyTypeObject* type, PyObject* args, PyObject* kwargs) {
+ CMessage* self = reinterpret_cast<CMessage*>(type->tp_alloc(type, 0));
+ if (self == NULL) {
+ return NULL;
+ }
+
+ self->message = NULL;
+ self->parent = NULL;
+ self->parent_field = NULL;
+ self->read_only = false;
+ self->extensions = NULL;
+
+ self->composite_fields = PyDict_New();
+ if (self->composite_fields == NULL) {
+ return NULL;
+ }
+ return reinterpret_cast<PyObject*>(self);
+}
+
+PyObject* NewEmpty(PyObject* type) {
+ return New(reinterpret_cast<PyTypeObject*>(type), NULL, NULL);
+}
+
+static int Init(CMessage* self, PyObject* args, PyObject* kwargs) {
+ if (kwargs == NULL) {
+ // TODO(anuraag): Set error
+ return -1;
+ }
+
+ PyObject* descriptor = PyTuple_GetItem(args, 0);
+ if (descriptor == NULL || PyTuple_Size(args) != 1) {
+ PyErr_SetString(PyExc_ValueError, "args must contain one arg: descriptor");
+ return -1;
+ }
+
+ ScopedPyObjectPtr py_message_type(PyObject_GetAttr(descriptor, kfull_name));
+ if (py_message_type == NULL) {
+ return -1;
+ }
+
+ const char* message_type = PyString_AsString(py_message_type.get());
+ const google::protobuf::Message* message = CreateMessage(message_type);
+ if (message == NULL) {
+ return -1;
+ }
+
+ self->message = message->New();
+ self->owner.reset(self->message);
+
+ if (InitAttributes(self, descriptor, kwargs) < 0) {
+ return -1;
+ }
+ return 0;
+}
+
+// ---------------------------------------------------------------------
+// Deallocating a CMessage
+//
+// Deallocating a CMessage requires that we clear any weak references
+// from children to the message being deallocated.
+
+// Clear the weak reference from the child to the parent.
+struct ClearWeakReferences : public ChildVisitor {
+ int VisitRepeatedCompositeContainer(RepeatedCompositeContainer* container) {
+ container->parent = NULL;
+ // The elements in the container have the same parent as the
+ // container itself, so NULL out that pointer as well.
+ const Py_ssize_t n = PyList_GET_SIZE(container->child_messages);
+ for (Py_ssize_t i = 0; i < n; ++i) {
+ CMessage* child_cmessage = reinterpret_cast<CMessage*>(
+ PyList_GET_ITEM(container->child_messages, i));
+ child_cmessage->parent = NULL;
+ }
+ return 0;
+ }
+
+ int VisitRepeatedScalarContainer(RepeatedScalarContainer* container) {
+ container->parent = NULL;
+ return 0;
+ }
+
+ int VisitCMessage(CMessage* cmessage,
+ const google::protobuf::FieldDescriptor* field_descriptor) {
+ cmessage->parent = NULL;
+ return 0;
+ }
+};
+
+static void Dealloc(CMessage* self) {
+ // Null out all weak references from children to this message.
+ GOOGLE_CHECK_EQ(0, ForEachCompositeField(self, ClearWeakReferences()));
+
+ Py_CLEAR(self->extensions);
+ Py_CLEAR(self->composite_fields);
+ self->owner.reset();
+ Py_TYPE(self)->tp_free(reinterpret_cast<PyObject*>(self));
+}
+
+// ---------------------------------------------------------------------
+
+
+PyObject* IsInitialized(CMessage* self, PyObject* args) {
+ PyObject* errors = NULL;
+ if (PyArg_ParseTuple(args, "|O", &errors) < 0) {
+ return NULL;
+ }
+ if (self->message->IsInitialized()) {
+ Py_RETURN_TRUE;
+ }
+ if (errors != NULL) {
+ ScopedPyObjectPtr initialization_errors(
+ FindInitializationErrors(self));
+ if (initialization_errors == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr extend_name(PyString_FromString("extend"));
+ if (extend_name == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr result(PyObject_CallMethodObjArgs(
+ errors,
+ extend_name.get(),
+ initialization_errors.get(),
+ NULL));
+ if (result == NULL) {
+ return NULL;
+ }
+ }
+ Py_RETURN_FALSE;
+}
+
+PyObject* HasFieldByDescriptor(
+ CMessage* self, const google::protobuf::FieldDescriptor* field_descriptor) {
+ google::protobuf::Message* message = self->message;
+ if (!FIELD_BELONGS_TO_MESSAGE(field_descriptor, message)) {
+ PyErr_SetString(PyExc_KeyError,
+ "Field does not belong to message!");
+ return NULL;
+ }
+ if (field_descriptor->label() == google::protobuf::FieldDescriptor::LABEL_REPEATED) {
+ PyErr_SetString(PyExc_KeyError,
+ "Field is repeated. A singular method is required.");
+ return NULL;
+ }
+ bool has_field =
+ message->GetReflection()->HasField(*message, field_descriptor);
+ return PyBool_FromLong(has_field ? 1 : 0);
+}
+
+const google::protobuf::FieldDescriptor* FindFieldWithOneofs(
+ const google::protobuf::Message* message, const char* field_name, bool* in_oneof) {
+ const google::protobuf::Descriptor* descriptor = message->GetDescriptor();
+ const google::protobuf::FieldDescriptor* field_descriptor =
+ descriptor->FindFieldByName(field_name);
+ if (field_descriptor == NULL) {
+ const google::protobuf::OneofDescriptor* oneof_desc =
+ message->GetDescriptor()->FindOneofByName(field_name);
+ if (oneof_desc == NULL) {
+ *in_oneof = false;
+ return NULL;
+ } else {
+ *in_oneof = true;
+ return message->GetReflection()->GetOneofFieldDescriptor(
+ *message, oneof_desc);
+ }
+ }
+ return field_descriptor;
+}
+
+PyObject* HasField(CMessage* self, PyObject* arg) {
+#if PY_MAJOR_VERSION < 3
+ char* field_name;
+ if (PyString_AsStringAndSize(arg, &field_name, NULL) < 0) {
+#else
+ char* field_name = PyUnicode_AsUTF8(arg);
+ if (!field_name) {
+#endif
+ return NULL;
+ }
+
+ google::protobuf::Message* message = self->message;
+ const google::protobuf::Descriptor* descriptor = message->GetDescriptor();
+ bool is_in_oneof;
+ const google::protobuf::FieldDescriptor* field_descriptor =
+ FindFieldWithOneofs(message, field_name, &is_in_oneof);
+ if (field_descriptor == NULL) {
+ if (!is_in_oneof) {
+ PyErr_Format(PyExc_ValueError, "Unknown field %s.", field_name);
+ return NULL;
+ } else {
+ Py_RETURN_FALSE;
+ }
+ }
+
+ if (field_descriptor->label() == google::protobuf::FieldDescriptor::LABEL_REPEATED) {
+ PyErr_Format(PyExc_ValueError,
+ "Protocol message has no singular \"%s\" field.", field_name);
+ return NULL;
+ }
+
+ bool has_field =
+ message->GetReflection()->HasField(*message, field_descriptor);
+ if (!has_field && field_descriptor->cpp_type() ==
+ google::protobuf::FieldDescriptor::CPPTYPE_ENUM) {
+ // We may have an invalid enum value stored in the UnknownFieldSet and need
+ // to check presence in there as well.
+ const google::protobuf::UnknownFieldSet& unknown_field_set =
+ message->GetReflection()->GetUnknownFields(*message);
+ for (int i = 0; i < unknown_field_set.field_count(); ++i) {
+ if (unknown_field_set.field(i).number() == field_descriptor->number()) {
+ Py_RETURN_TRUE;
+ }
+ }
+ Py_RETURN_FALSE;
+ }
+ return PyBool_FromLong(has_field ? 1 : 0);
+}
+
+PyObject* ClearExtension(CMessage* self, PyObject* arg) {
+ if (self->extensions != NULL) {
+ return extension_dict::ClearExtension(self->extensions, arg);
+ }
+ PyErr_SetString(PyExc_TypeError, "Message is not extendable");
+ return NULL;
+}
+
+PyObject* HasExtension(CMessage* self, PyObject* arg) {
+ if (self->extensions != NULL) {
+ return extension_dict::HasExtension(self->extensions, arg);
+ }
+ PyErr_SetString(PyExc_TypeError, "Message is not extendable");
+ return NULL;
+}
+
+// ---------------------------------------------------------------------
+// Releasing messages
+//
+// The Python API's ClearField() and Clear() methods behave
+// differently than their C++ counterparts. While the C++ versions
+// clears the children the Python versions detaches the children,
+// without touching their content. This impedance mismatch causes
+// some complexity in the implementation, which is captured in this
+// section.
+//
+// When a CMessage field is cleared we need to:
+//
+// * Release the Message used as the backing store for the CMessage
+// from its parent.
+//
+// * Change the owner field of the released CMessage and all of its
+// children to point to the newly released Message.
+//
+// * Clear the weak references from the released CMessage to the
+// parent.
+//
+// When a RepeatedCompositeContainer field is cleared we need to:
+//
+// * Release all the Message used as the backing store for the
+// CMessages stored in the container.
+//
+// * Change the owner field of all the released CMessage and all of
+// their children to point to the newly released Messages.
+//
+// * Clear the weak references from the released container to the
+// parent.
+
+struct SetOwnerVisitor : public ChildVisitor {
+ // new_owner must outlive this object.
+ explicit SetOwnerVisitor(const shared_ptr<Message>& new_owner)
+ : new_owner_(new_owner) {}
+
+ int VisitRepeatedCompositeContainer(RepeatedCompositeContainer* container) {
+ repeated_composite_container::SetOwner(container, new_owner_);
+ return 0;
+ }
+
+ int VisitRepeatedScalarContainer(RepeatedScalarContainer* container) {
+ repeated_scalar_container::SetOwner(container, new_owner_);
+ return 0;
+ }
+
+ int VisitCMessage(CMessage* cmessage,
+ const google::protobuf::FieldDescriptor* field_descriptor) {
+ return SetOwner(cmessage, new_owner_);
+ }
+
+ private:
+ const shared_ptr<Message>& new_owner_;
+};
+
+// Change the owner of this CMessage and all its children, recursively.
+int SetOwner(CMessage* self, const shared_ptr<Message>& new_owner) {
+ self->owner = new_owner;
+ if (ForEachCompositeField(self, SetOwnerVisitor(new_owner)) == -1)
+ return -1;
+ return 0;
+}
+
+// Releases the message specified by 'field' and returns the
+// pointer. If the field does not exist a new message is created using
+// 'descriptor'. The caller takes ownership of the returned pointer.
+Message* ReleaseMessage(google::protobuf::Message* message,
+ const google::protobuf::Descriptor* descriptor,
+ const google::protobuf::FieldDescriptor* field_descriptor) {
+ Message* released_message = message->GetReflection()->ReleaseMessage(
+ message, field_descriptor, global_message_factory);
+ // ReleaseMessage will return NULL which differs from
+ // child_cmessage->message, if the field does not exist. In this case,
+ // the latter points to the default instance via a const_cast<>, so we
+ // have to reset it to a new mutable object since we are taking ownership.
+ if (released_message == NULL) {
+ const Message* prototype = global_message_factory->GetPrototype(
+ descriptor);
+ GOOGLE_DCHECK(prototype != NULL);
+ released_message = prototype->New();
+ }
+
+ return released_message;
+}
+
+int ReleaseSubMessage(google::protobuf::Message* message,
+ const google::protobuf::FieldDescriptor* field_descriptor,
+ CMessage* child_cmessage) {
+ // Release the Message
+ shared_ptr<Message> released_message(ReleaseMessage(
+ message, child_cmessage->message->GetDescriptor(), field_descriptor));
+ child_cmessage->message = released_message.get();
+ child_cmessage->owner.swap(released_message);
+ child_cmessage->parent = NULL;
+ child_cmessage->parent_field = NULL;
+ child_cmessage->read_only = false;
+ return ForEachCompositeField(child_cmessage,
+ SetOwnerVisitor(child_cmessage->owner));
+}
+
+struct ReleaseChild : public ChildVisitor {
+ // message must outlive this object.
+ explicit ReleaseChild(google::protobuf::Message* parent_message) :
+ parent_message_(parent_message) {}
+
+ int VisitRepeatedCompositeContainer(RepeatedCompositeContainer* container) {
+ return repeated_composite_container::Release(
+ reinterpret_cast<RepeatedCompositeContainer*>(container));
+ }
+
+ int VisitRepeatedScalarContainer(RepeatedScalarContainer* container) {
+ return repeated_scalar_container::Release(
+ reinterpret_cast<RepeatedScalarContainer*>(container));
+ }
+
+ int VisitCMessage(CMessage* cmessage,
+ const google::protobuf::FieldDescriptor* field_descriptor) {
+ return ReleaseSubMessage(parent_message_, field_descriptor,
+ reinterpret_cast<CMessage*>(cmessage));
+ }
+
+ google::protobuf::Message* parent_message_;
+};
+
+int InternalReleaseFieldByDescriptor(
+ const google::protobuf::FieldDescriptor* field_descriptor,
+ PyObject* composite_field,
+ google::protobuf::Message* parent_message) {
+ return VisitCompositeField(
+ field_descriptor,
+ composite_field,
+ ReleaseChild(parent_message));
+}
+
+int InternalReleaseField(CMessage* self, PyObject* composite_field,
+ PyObject* name) {
+ PyObject* cdescriptor = GetDescriptor(self, name);
+ if (cdescriptor != NULL) {
+ const google::protobuf::FieldDescriptor* descriptor =
+ reinterpret_cast<CFieldDescriptor*>(cdescriptor)->descriptor;
+ return InternalReleaseFieldByDescriptor(
+ descriptor, composite_field, self->message);
+ }
+
+ return 0;
+}
+
+PyObject* ClearFieldByDescriptor(
+ CMessage* self,
+ const google::protobuf::FieldDescriptor* descriptor) {
+ if (!FIELD_BELONGS_TO_MESSAGE(descriptor, self->message)) {
+ PyErr_SetString(PyExc_KeyError,
+ "Field does not belong to message!");
+ return NULL;
+ }
+ AssureWritable(self);
+ self->message->GetReflection()->ClearField(self->message, descriptor);
+ Py_RETURN_NONE;
+}
+
+PyObject* ClearField(CMessage* self, PyObject* arg) {
+ char* field_name;
+ if (!PyString_Check(arg)) {
+ PyErr_SetString(PyExc_TypeError, "field name must be a string");
+ return NULL;
+ }
+#if PY_MAJOR_VERSION < 3
+ if (PyString_AsStringAndSize(arg, &field_name, NULL) < 0) {
+ return NULL;
+ }
+#else
+ field_name = PyUnicode_AsUTF8(arg);
+#endif
+ AssureWritable(self);
+ google::protobuf::Message* message = self->message;
+ const google::protobuf::Descriptor* descriptor = message->GetDescriptor();
+ ScopedPyObjectPtr arg_in_oneof;
+ bool is_in_oneof;
+ const google::protobuf::FieldDescriptor* field_descriptor =
+ FindFieldWithOneofs(message, field_name, &is_in_oneof);
+ if (field_descriptor == NULL) {
+ if (!is_in_oneof) {
+ PyErr_Format(PyExc_ValueError,
+ "Protocol message has no \"%s\" field.", field_name);
+ return NULL;
+ } else {
+ Py_RETURN_NONE;
+ }
+ } else if (is_in_oneof) {
+ arg_in_oneof.reset(PyString_FromString(field_descriptor->name().c_str()));
+ arg = arg_in_oneof.get();
+ }
+
+ PyObject* composite_field = PyDict_GetItem(self->composite_fields,
+ arg);
+
+ // Only release the field if there's a possibility that there are
+ // references to it.
+ if (composite_field != NULL) {
+ if (InternalReleaseField(self, composite_field, arg) < 0) {
+ return NULL;
+ }
+ PyDict_DelItem(self->composite_fields, arg);
+ }
+ message->GetReflection()->ClearField(message, field_descriptor);
+ if (field_descriptor->cpp_type() == google::protobuf::FieldDescriptor::CPPTYPE_ENUM) {
+ google::protobuf::UnknownFieldSet* unknown_field_set =
+ message->GetReflection()->MutableUnknownFields(message);
+ unknown_field_set->DeleteByNumber(field_descriptor->number());
+ }
+
+ Py_RETURN_NONE;
+}
+
+PyObject* Clear(CMessage* self) {
+ AssureWritable(self);
+ if (ForEachCompositeField(self, ReleaseChild(self->message)) == -1)
+ return NULL;
+
+ // The old ExtensionDict still aliases this CMessage, but all its
+ // fields have been released.
+ if (self->extensions != NULL) {
+ Py_CLEAR(self->extensions);
+ PyObject* py_extension_dict = PyObject_CallObject(
+ reinterpret_cast<PyObject*>(&ExtensionDict_Type), NULL);
+ if (py_extension_dict == NULL) {
+ return NULL;
+ }
+ ExtensionDict* extension_dict = reinterpret_cast<ExtensionDict*>(
+ py_extension_dict);
+ extension_dict->parent = self;
+ extension_dict->message = self->message;
+ self->extensions = extension_dict;
+ }
+ PyDict_Clear(self->composite_fields);
+ self->message->Clear();
+ Py_RETURN_NONE;
+}
+
+// ---------------------------------------------------------------------
+
+static string GetMessageName(CMessage* self) {
+ if (self->parent_field != NULL) {
+ return self->parent_field->descriptor->full_name();
+ } else {
+ return self->message->GetDescriptor()->full_name();
+ }
+}
+
+static PyObject* SerializeToString(CMessage* self, PyObject* args) {
+ if (!self->message->IsInitialized()) {
+ ScopedPyObjectPtr errors(FindInitializationErrors(self));
+ if (errors == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr comma(PyString_FromString(","));
+ if (comma == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr joined(
+ PyObject_CallMethod(comma.get(), "join", "O", errors.get()));
+ if (joined == NULL) {
+ return NULL;
+ }
+ PyErr_Format(EncodeError_class, "Message %s is missing required fields: %s",
+ GetMessageName(self).c_str(), PyString_AsString(joined.get()));
+ return NULL;
+ }
+ int size = self->message->ByteSize();
+ if (size <= 0) {
+ return PyBytes_FromString("");
+ }
+ PyObject* result = PyBytes_FromStringAndSize(NULL, size);
+ if (result == NULL) {
+ return NULL;
+ }
+ char* buffer = PyBytes_AS_STRING(result);
+ self->message->SerializeWithCachedSizesToArray(
+ reinterpret_cast<uint8*>(buffer));
+ return result;
+}
+
+static PyObject* SerializePartialToString(CMessage* self) {
+ string contents;
+ self->message->SerializePartialToString(&contents);
+ return PyBytes_FromStringAndSize(contents.c_str(), contents.size());
+}
+
+// Formats proto fields for ascii dumps using python formatting functions where
+// appropriate.
+class PythonFieldValuePrinter : public google::protobuf::TextFormat::FieldValuePrinter {
+ public:
+ PythonFieldValuePrinter() : float_holder_(PyFloat_FromDouble(0)) {}
+
+ // Python has some differences from C++ when printing floating point numbers.
+ //
+ // 1) Trailing .0 is always printed.
+ // 2) Outputted is rounded to 12 digits.
+ //
+ // We override floating point printing with the C-API function for printing
+ // Python floats to ensure consistency.
+ string PrintFloat(float value) const { return PrintDouble(value); }
+ string PrintDouble(double value) const {
+ reinterpret_cast<PyFloatObject*>(float_holder_.get())->ob_fval = value;
+ ScopedPyObjectPtr s(PyObject_Str(float_holder_.get()));
+ if (s == NULL) return string();
+#if PY_MAJOR_VERSION < 3
+ char *cstr = PyBytes_AS_STRING(static_cast<PyObject*>(s));
+#else
+ char *cstr = PyUnicode_AsUTF8(s);
+#endif
+ return string(cstr);
+ }
+
+ private:
+ // Holder for a python float object which we use to allow us to use
+ // the Python API for printing doubles. We initialize once and then
+ // directly modify it for every float printed to save on allocations
+ // and refcounting.
+ ScopedPyObjectPtr float_holder_;
+};
+
+static PyObject* ToStr(CMessage* self) {
+ google::protobuf::TextFormat::Printer printer;
+ // Passes ownership
+ printer.SetDefaultFieldValuePrinter(new PythonFieldValuePrinter());
+ printer.SetHideUnknownFields(true);
+ string output;
+ if (!printer.PrintToString(*self->message, &output)) {
+ PyErr_SetString(PyExc_ValueError, "Unable to convert message to str");
+ return NULL;
+ }
+ return PyString_FromString(output.c_str());
+}
+
+PyObject* MergeFrom(CMessage* self, PyObject* arg) {
+ CMessage* other_message;
+ if (!PyObject_TypeCheck(reinterpret_cast<PyObject *>(arg), &CMessage_Type)) {
+ PyErr_SetString(PyExc_TypeError, "Must be a message");
+ return NULL;
+ }
+
+ other_message = reinterpret_cast<CMessage*>(arg);
+ if (other_message->message->GetDescriptor() !=
+ self->message->GetDescriptor()) {
+ PyErr_Format(PyExc_TypeError,
+ "Tried to merge from a message with a different type. "
+ "to: %s, from: %s",
+ self->message->GetDescriptor()->full_name().c_str(),
+ other_message->message->GetDescriptor()->full_name().c_str());
+ return NULL;
+ }
+ AssureWritable(self);
+
+ // TODO(tibell): Message::MergeFrom might turn some child Messages
+ // into mutable messages, invalidating the message field in the
+ // corresponding CMessages. We should run a FixupMessageReferences
+ // pass here.
+
+ self->message->MergeFrom(*other_message->message);
+ Py_RETURN_NONE;
+}
+
+static PyObject* CopyFrom(CMessage* self, PyObject* arg) {
+ CMessage* other_message;
+ if (!PyObject_TypeCheck(reinterpret_cast<PyObject *>(arg), &CMessage_Type)) {
+ PyErr_SetString(PyExc_TypeError, "Must be a message");
+ return NULL;
+ }
+
+ other_message = reinterpret_cast<CMessage*>(arg);
+
+ if (self == other_message) {
+ Py_RETURN_NONE;
+ }
+
+ if (other_message->message->GetDescriptor() !=
+ self->message->GetDescriptor()) {
+ PyErr_Format(PyExc_TypeError,
+ "Tried to copy from a message with a different type. "
+ "to: %s, from: %s",
+ self->message->GetDescriptor()->full_name().c_str(),
+ other_message->message->GetDescriptor()->full_name().c_str());
+ return NULL;
+ }
+
+ AssureWritable(self);
+
+ // CopyFrom on the message will not clean up self->composite_fields,
+ // which can leave us in an inconsistent state, so clear it out here.
+ Clear(self);
+
+ self->message->CopyFrom(*other_message->message);
+
+ Py_RETURN_NONE;
+}
+
+static PyObject* MergeFromString(CMessage* self, PyObject* arg) {
+ const void* data;
+ Py_ssize_t data_length;
+ if (PyObject_AsReadBuffer(arg, &data, &data_length) < 0) {
+ return NULL;
+ }
+
+ AssureWritable(self);
+ google::protobuf::io::CodedInputStream input(
+ reinterpret_cast<const uint8*>(data), data_length);
+ input.SetExtensionRegistry(GetDescriptorPool(), global_message_factory);
+ bool success = self->message->MergePartialFromCodedStream(&input);
+ if (success) {
+ return PyInt_FromLong(input.CurrentPosition());
+ } else {
+ PyErr_Format(DecodeError_class, "Error parsing message");
+ return NULL;
+ }
+}
+
+static PyObject* ParseFromString(CMessage* self, PyObject* arg) {
+ if (Clear(self) == NULL) {
+ return NULL;
+ }
+ return MergeFromString(self, arg);
+}
+
+static PyObject* ByteSize(CMessage* self, PyObject* args) {
+ return PyLong_FromLong(self->message->ByteSize());
+}
+
+static PyObject* RegisterExtension(PyObject* cls,
+ PyObject* extension_handle) {
+ ScopedPyObjectPtr message_descriptor(PyObject_GetAttr(cls, kDESCRIPTOR));
+ if (message_descriptor == NULL) {
+ return NULL;
+ }
+ if (PyObject_SetAttrString(extension_handle, "containing_type",
+ message_descriptor) < 0) {
+ return NULL;
+ }
+ ScopedPyObjectPtr extensions_by_name(
+ PyObject_GetAttr(cls, k_extensions_by_name));
+ if (extensions_by_name == NULL) {
+ PyErr_SetString(PyExc_TypeError, "no extensions_by_name on class");
+ return NULL;
+ }
+ ScopedPyObjectPtr full_name(PyObject_GetAttr(extension_handle, kfull_name));
+ if (full_name == NULL) {
+ return NULL;
+ }
+ if (PyDict_SetItem(extensions_by_name, full_name, extension_handle) < 0) {
+ return NULL;
+ }
+
+ // Also store a mapping from extension number to implementing class.
+ ScopedPyObjectPtr extensions_by_number(
+ PyObject_GetAttr(cls, k_extensions_by_number));
+ if (extensions_by_number == NULL) {
+ PyErr_SetString(PyExc_TypeError, "no extensions_by_number on class");
+ return NULL;
+ }
+ ScopedPyObjectPtr number(PyObject_GetAttrString(extension_handle, "number"));
+ if (number == NULL) {
+ return NULL;
+ }
+ if (PyDict_SetItem(extensions_by_number, number, extension_handle) < 0) {
+ return NULL;
+ }
+
+ CFieldDescriptor* cdescriptor =
+ extension_dict::InternalGetCDescriptorFromExtension(extension_handle);
+ ScopedPyObjectPtr py_cdescriptor(reinterpret_cast<PyObject*>(cdescriptor));
+ if (cdescriptor == NULL) {
+ return NULL;
+ }
+ Py_INCREF(extension_handle);
+ cdescriptor->descriptor_field = extension_handle;
+ const google::protobuf::FieldDescriptor* descriptor = cdescriptor->descriptor;
+ // Check if it's a message set
+ if (descriptor->is_extension() &&
+ descriptor->containing_type()->options().message_set_wire_format() &&
+ descriptor->type() == google::protobuf::FieldDescriptor::TYPE_MESSAGE &&
+ descriptor->message_type() == descriptor->extension_scope() &&
+ descriptor->label() == google::protobuf::FieldDescriptor::LABEL_OPTIONAL) {
+ ScopedPyObjectPtr message_name(PyString_FromStringAndSize(
+ descriptor->message_type()->full_name().c_str(),
+ descriptor->message_type()->full_name().size()));
+ if (message_name == NULL) {
+ return NULL;
+ }
+ PyDict_SetItem(extensions_by_name, message_name, extension_handle);
+ }
+
+ Py_RETURN_NONE;
+}
+
+static PyObject* SetInParent(CMessage* self, PyObject* args) {
+ AssureWritable(self);
+ Py_RETURN_NONE;
+}
+
+static PyObject* WhichOneof(CMessage* self, PyObject* arg) {
+ char* oneof_name;
+ if (!PyString_Check(arg)) {
+ PyErr_SetString(PyExc_TypeError, "field name must be a string");
+ return NULL;
+ }
+ oneof_name = PyString_AsString(arg);
+ if (oneof_name == NULL) {
+ return NULL;
+ }
+ const google::protobuf::OneofDescriptor* oneof_desc =
+ self->message->GetDescriptor()->FindOneofByName(oneof_name);
+ if (oneof_desc == NULL) {
+ PyErr_Format(PyExc_ValueError,
+ "Protocol message has no oneof \"%s\" field.", oneof_name);
+ return NULL;
+ }
+ const google::protobuf::FieldDescriptor* field_in_oneof =
+ self->message->GetReflection()->GetOneofFieldDescriptor(
+ *self->message, oneof_desc);
+ if (field_in_oneof == NULL) {
+ Py_RETURN_NONE;
+ } else {
+ return PyString_FromString(field_in_oneof->name().c_str());
+ }
+}
+
+static PyObject* ListFields(CMessage* self) {
+ vector<const google::protobuf::FieldDescriptor*> fields;
+ self->message->GetReflection()->ListFields(*self->message, &fields);
+
+ PyObject* descriptor = PyDict_GetItem(Py_TYPE(self)->tp_dict, kDESCRIPTOR);
+ if (descriptor == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr fields_by_name(
+ PyObject_GetAttr(descriptor, kfields_by_name));
+ if (fields_by_name == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr extensions_by_name(PyObject_GetAttr(
+ reinterpret_cast<PyObject*>(Py_TYPE(self)), k_extensions_by_name));
+ if (extensions_by_name == NULL) {
+ PyErr_SetString(PyExc_ValueError, "no extensionsbyname");
+ return NULL;
+ }
+ // Normally, the list will be exactly the size of the fields.
+ PyObject* all_fields = PyList_New(fields.size());
+ if (all_fields == NULL) {
+ return NULL;
+ }
+
+ // When there are unknown extensions, the py list will *not* contain
+ // the field information. Thus the actual size of the py list will be
+ // smaller than the size of fields. Set the actual size at the end.
+ Py_ssize_t actual_size = 0;
+ for (Py_ssize_t i = 0; i < fields.size(); ++i) {
+ ScopedPyObjectPtr t(PyTuple_New(2));
+ if (t == NULL) {
+ Py_DECREF(all_fields);
+ return NULL;
+ }
+
+ if (fields[i]->is_extension()) {
+ const string& field_name = fields[i]->full_name();
+ PyObject* extension_field = PyDict_GetItemString(extensions_by_name,
+ field_name.c_str());
+ if (extension_field == NULL) {
+ // If we couldn't fetch extension_field, it means the module that
+ // defines this extension has not been explicitly imported in Python
+ // code, and the extension hasn't been registered. There's nothing much
+ // we can do about this, so just skip it in the output to match the
+ // behavior of the python implementation.
+ continue;
+ }
+ PyObject* extensions = reinterpret_cast<PyObject*>(self->extensions);
+ if (extensions == NULL) {
+ Py_DECREF(all_fields);
+ return NULL;
+ }
+ // 'extension' reference later stolen by PyTuple_SET_ITEM.
+ PyObject* extension = PyObject_GetItem(extensions, extension_field);
+ if (extension == NULL) {
+ Py_DECREF(all_fields);
+ return NULL;
+ }
+ Py_INCREF(extension_field);
+ PyTuple_SET_ITEM(t.get(), 0, extension_field);
+ // Steals reference to 'extension'
+ PyTuple_SET_ITEM(t.get(), 1, extension);
+ } else {
+ const string& field_name = fields[i]->name();
+ ScopedPyObjectPtr py_field_name(PyString_FromStringAndSize(
+ field_name.c_str(), field_name.length()));
+ if (py_field_name == NULL) {
+ PyErr_SetString(PyExc_ValueError, "bad string");
+ Py_DECREF(all_fields);
+ return NULL;
+ }
+ PyObject* field_descriptor =
+ PyDict_GetItem(fields_by_name, py_field_name);
+ if (field_descriptor == NULL) {
+ Py_DECREF(all_fields);
+ return NULL;
+ }
+
+ PyObject* field_value = GetAttr(self, py_field_name);
+ if (field_value == NULL) {
+ PyErr_SetObject(PyExc_ValueError, py_field_name);
+ Py_DECREF(all_fields);
+ return NULL;
+ }
+ Py_INCREF(field_descriptor);
+ PyTuple_SET_ITEM(t.get(), 0, field_descriptor);
+ PyTuple_SET_ITEM(t.get(), 1, field_value);
+ }
+ PyList_SET_ITEM(all_fields, actual_size, t.release());
+ ++actual_size;
+ }
+ Py_SIZE(all_fields) = actual_size;
+ return all_fields;
+}
+
+PyObject* FindInitializationErrors(CMessage* self) {
+ google::protobuf::Message* message = self->message;
+ vector<string> errors;
+ message->FindInitializationErrors(&errors);
+
+ PyObject* error_list = PyList_New(errors.size());
+ if (error_list == NULL) {
+ return NULL;
+ }
+ for (Py_ssize_t i = 0; i < errors.size(); ++i) {
+ const string& error = errors[i];
+ PyObject* error_string = PyString_FromStringAndSize(
+ error.c_str(), error.length());
+ if (error_string == NULL) {
+ Py_DECREF(error_list);
+ return NULL;
+ }
+ PyList_SET_ITEM(error_list, i, error_string);
+ }
+ return error_list;
+}
+
+static PyObject* RichCompare(CMessage* self, PyObject* other, int opid) {
+ if (!PyObject_TypeCheck(other, &CMessage_Type)) {
+ if (opid == Py_EQ) {
+ Py_RETURN_FALSE;
+ } else if (opid == Py_NE) {
+ Py_RETURN_TRUE;
+ }
+ }
+ if (opid == Py_EQ || opid == Py_NE) {
+ ScopedPyObjectPtr self_fields(ListFields(self));
+ ScopedPyObjectPtr other_fields(ListFields(
+ reinterpret_cast<CMessage*>(other)));
+ return PyObject_RichCompare(self_fields, other_fields, opid);
+ } else {
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+}
+
+PyObject* InternalGetScalar(
+ CMessage* self,
+ const google::protobuf::FieldDescriptor* field_descriptor) {
+ google::protobuf::Message* message = self->message;
+ const google::protobuf::Reflection* reflection = message->GetReflection();
+
+ if (!FIELD_BELONGS_TO_MESSAGE(field_descriptor, message)) {
+ PyErr_SetString(
+ PyExc_KeyError, "Field does not belong to message!");
+ return NULL;
+ }
+
+ PyObject* result = NULL;
+ switch (field_descriptor->cpp_type()) {
+ case google::protobuf::FieldDescriptor::CPPTYPE_INT32: {
+ int32 value = reflection->GetInt32(*message, field_descriptor);
+ result = PyInt_FromLong(value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_INT64: {
+ int64 value = reflection->GetInt64(*message, field_descriptor);
+ result = PyLong_FromLongLong(value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_UINT32: {
+ uint32 value = reflection->GetUInt32(*message, field_descriptor);
+ result = PyInt_FromSize_t(value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_UINT64: {
+ uint64 value = reflection->GetUInt64(*message, field_descriptor);
+ result = PyLong_FromUnsignedLongLong(value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_FLOAT: {
+ float value = reflection->GetFloat(*message, field_descriptor);
+ result = PyFloat_FromDouble(value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_DOUBLE: {
+ double value = reflection->GetDouble(*message, field_descriptor);
+ result = PyFloat_FromDouble(value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_BOOL: {
+ bool value = reflection->GetBool(*message, field_descriptor);
+ result = PyBool_FromLong(value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_STRING: {
+ string value = reflection->GetString(*message, field_descriptor);
+ result = ToStringObject(field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_ENUM: {
+ if (!message->GetReflection()->HasField(*message, field_descriptor)) {
+ // Look for the value in the unknown fields.
+ google::protobuf::UnknownFieldSet* unknown_field_set =
+ message->GetReflection()->MutableUnknownFields(message);
+ for (int i = 0; i < unknown_field_set->field_count(); ++i) {
+ if (unknown_field_set->field(i).number() ==
+ field_descriptor->number()) {
+ result = PyInt_FromLong(unknown_field_set->field(i).varint());
+ break;
+ }
+ }
+ }
+
+ if (result == NULL) {
+ const google::protobuf::EnumValueDescriptor* enum_value =
+ message->GetReflection()->GetEnum(*message, field_descriptor);
+ result = PyInt_FromLong(enum_value->number());
+ }
+ break;
+ }
+ default:
+ PyErr_Format(
+ PyExc_SystemError, "Getting a value from a field of unknown type %d",
+ field_descriptor->cpp_type());
+ }
+
+ return result;
+}
+
+PyObject* InternalGetSubMessage(CMessage* self,
+ CFieldDescriptor* cfield_descriptor) {
+ PyObject* field = cfield_descriptor->descriptor_field;
+ ScopedPyObjectPtr message_type(PyObject_GetAttr(field, kmessage_type));
+ if (message_type == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr concrete_class(
+ PyObject_GetAttr(message_type, k_concrete_class));
+ if (concrete_class == NULL) {
+ return NULL;
+ }
+ PyObject* py_cmsg = cmessage::NewEmpty(concrete_class);
+ if (py_cmsg == NULL) {
+ return NULL;
+ }
+ if (!PyObject_TypeCheck(py_cmsg, &CMessage_Type)) {
+ PyErr_SetString(PyExc_TypeError, "Not a CMessage!");
+ }
+ CMessage* cmsg = reinterpret_cast<CMessage*>(py_cmsg);
+
+ const google::protobuf::FieldDescriptor* field_descriptor =
+ cfield_descriptor->descriptor;
+ const google::protobuf::Reflection* reflection = self->message->GetReflection();
+ const google::protobuf::Message& sub_message = reflection->GetMessage(
+ *self->message, field_descriptor, global_message_factory);
+ cmsg->owner = self->owner;
+ cmsg->parent = self;
+ cmsg->parent_field = cfield_descriptor;
+ cmsg->read_only = !reflection->HasField(*self->message, field_descriptor);
+ cmsg->message = const_cast<google::protobuf::Message*>(&sub_message);
+
+ if (InitAttributes(cmsg, NULL, NULL) < 0) {
+ Py_DECREF(py_cmsg);
+ return NULL;
+ }
+ return py_cmsg;
+}
+
+int InternalSetScalar(
+ CMessage* self,
+ const google::protobuf::FieldDescriptor* field_descriptor,
+ PyObject* arg) {
+ google::protobuf::Message* message = self->message;
+ const google::protobuf::Reflection* reflection = message->GetReflection();
+
+ if (!FIELD_BELONGS_TO_MESSAGE(field_descriptor, message)) {
+ PyErr_SetString(
+ PyExc_KeyError, "Field does not belong to message!");
+ return -1;
+ }
+
+ if (MaybeReleaseOverlappingOneofField(self, field_descriptor) < 0) {
+ return -1;
+ }
+
+ switch (field_descriptor->cpp_type()) {
+ case google::protobuf::FieldDescriptor::CPPTYPE_INT32: {
+ GOOGLE_CHECK_GET_INT32(arg, value, -1);
+ reflection->SetInt32(message, field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_INT64: {
+ GOOGLE_CHECK_GET_INT64(arg, value, -1);
+ reflection->SetInt64(message, field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_UINT32: {
+ GOOGLE_CHECK_GET_UINT32(arg, value, -1);
+ reflection->SetUInt32(message, field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_UINT64: {
+ GOOGLE_CHECK_GET_UINT64(arg, value, -1);
+ reflection->SetUInt64(message, field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_FLOAT: {
+ GOOGLE_CHECK_GET_FLOAT(arg, value, -1);
+ reflection->SetFloat(message, field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_DOUBLE: {
+ GOOGLE_CHECK_GET_DOUBLE(arg, value, -1);
+ reflection->SetDouble(message, field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_BOOL: {
+ GOOGLE_CHECK_GET_BOOL(arg, value, -1);
+ reflection->SetBool(message, field_descriptor, value);
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_STRING: {
+ if (!CheckAndSetString(
+ arg, message, field_descriptor, reflection, false, -1)) {
+ return -1;
+ }
+ break;
+ }
+ case google::protobuf::FieldDescriptor::CPPTYPE_ENUM: {
+ GOOGLE_CHECK_GET_INT32(arg, value, -1);
+ const google::protobuf::EnumDescriptor* enum_descriptor =
+ field_descriptor->enum_type();
+ const google::protobuf::EnumValueDescriptor* enum_value =
+ enum_descriptor->FindValueByNumber(value);
+ if (enum_value != NULL) {
+ reflection->SetEnum(message, field_descriptor, enum_value);
+ } else {
+ PyErr_Format(PyExc_ValueError, "Unknown enum value: %d", value);
+ return -1;
+ }
+ break;
+ }
+ default:
+ PyErr_Format(
+ PyExc_SystemError, "Setting value to a field of unknown type %d",
+ field_descriptor->cpp_type());
+ return -1;
+ }
+
+ return 0;
+}
+
+PyObject* FromString(PyTypeObject* cls, PyObject* serialized) {
+ PyObject* py_cmsg = PyObject_CallObject(
+ reinterpret_cast<PyObject*>(cls), NULL);
+ if (py_cmsg == NULL) {
+ return NULL;
+ }
+ CMessage* cmsg = reinterpret_cast<CMessage*>(py_cmsg);
+
+ ScopedPyObjectPtr py_length(MergeFromString(cmsg, serialized));
+ if (py_length == NULL) {
+ Py_DECREF(py_cmsg);
+ return NULL;
+ }
+
+ if (InitAttributes(cmsg, NULL, NULL) < 0) {
+ Py_DECREF(py_cmsg);
+ return NULL;
+ }
+ return py_cmsg;
+}
+
+static PyObject* AddDescriptors(PyTypeObject* cls,
+ PyObject* descriptor) {
+ if (PyObject_SetAttr(reinterpret_cast<PyObject*>(cls),
+ k_extensions_by_name, PyDict_New()) < 0) {
+ return NULL;
+ }
+ if (PyObject_SetAttr(reinterpret_cast<PyObject*>(cls),
+ k_extensions_by_number, PyDict_New()) < 0) {
+ return NULL;
+ }
+
+ ScopedPyObjectPtr field_descriptors(PyDict_New());
+
+ ScopedPyObjectPtr fields(PyObject_GetAttrString(descriptor, "fields"));
+ if (fields == NULL) {
+ return NULL;
+ }
+
+ ScopedPyObjectPtr _NUMBER_string(PyString_FromString("_FIELD_NUMBER"));
+ if (_NUMBER_string == NULL) {
+ return NULL;
+ }
+
+ const Py_ssize_t fields_size = PyList_GET_SIZE(fields.get());
+ for (int i = 0; i < fields_size; ++i) {
+ PyObject* field = PyList_GET_ITEM(fields.get(), i);
+ ScopedPyObjectPtr field_name(PyObject_GetAttr(field, kname));
+ ScopedPyObjectPtr full_field_name(PyObject_GetAttr(field, kfull_name));
+ if (field_name == NULL || full_field_name == NULL) {
+ PyErr_SetString(PyExc_TypeError, "Name is null");
+ return NULL;
+ }
+
+ PyObject* field_descriptor =
+ cdescriptor_pool::FindFieldByName(descriptor_pool, full_field_name);
+ if (field_descriptor == NULL) {
+ PyErr_SetString(PyExc_TypeError, "Couldn't find field");
+ return NULL;
+ }
+ Py_INCREF(field);
+ CFieldDescriptor* cfield_descriptor = reinterpret_cast<CFieldDescriptor*>(
+ field_descriptor);
+ cfield_descriptor->descriptor_field = field;
+ if (PyDict_SetItem(field_descriptors, field_name, field_descriptor) < 0) {
+ return NULL;
+ }
+
+ // The FieldDescriptor's name field might either be of type bytes or
+ // of type unicode, depending on whether the FieldDescriptor was
+ // parsed from a serialized message or read from the
+ // <message>_pb2.py module.
+ ScopedPyObjectPtr field_name_upcased(
+ PyObject_CallMethod(field_name, "upper", NULL));
+ if (field_name_upcased == NULL) {
+ return NULL;
+ }
+
+ ScopedPyObjectPtr field_number_name(PyObject_CallMethod(
+ field_name_upcased, "__add__", "(O)", _NUMBER_string.get()));
+ if (field_number_name == NULL) {
+ return NULL;
+ }
+
+ ScopedPyObjectPtr number(PyInt_FromLong(
+ cfield_descriptor->descriptor->number()));
+ if (number == NULL) {
+ return NULL;
+ }
+ if (PyObject_SetAttr(reinterpret_cast<PyObject*>(cls),
+ field_number_name, number) == -1) {
+ return NULL;
+ }
+ }
+
+ PyDict_SetItem(cls->tp_dict, k__descriptors, field_descriptors);
+
+ // Enum Values
+ ScopedPyObjectPtr enum_types(PyObject_GetAttrString(descriptor,
+ "enum_types"));
+ if (enum_types == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr type_iter(PyObject_GetIter(enum_types));
+ if (type_iter == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr enum_type;
+ while ((enum_type.reset(PyIter_Next(type_iter))) != NULL) {
+ ScopedPyObjectPtr wrapped(PyObject_CallFunctionObjArgs(
+ EnumTypeWrapper_class, enum_type.get(), NULL));
+ if (wrapped == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr enum_name(PyObject_GetAttr(enum_type, kname));
+ if (enum_name == NULL) {
+ return NULL;
+ }
+ if (PyObject_SetAttr(reinterpret_cast<PyObject*>(cls),
+ enum_name, wrapped) == -1) {
+ return NULL;
+ }
+
+ ScopedPyObjectPtr enum_values(PyObject_GetAttrString(enum_type, "values"));
+ if (enum_values == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr values_iter(PyObject_GetIter(enum_values));
+ if (values_iter == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr enum_value;
+ while ((enum_value.reset(PyIter_Next(values_iter))) != NULL) {
+ ScopedPyObjectPtr value_name(PyObject_GetAttr(enum_value, kname));
+ if (value_name == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr value_number(PyObject_GetAttrString(enum_value,
+ "number"));
+ if (value_number == NULL) {
+ return NULL;
+ }
+ if (PyObject_SetAttr(reinterpret_cast<PyObject*>(cls),
+ value_name, value_number) == -1) {
+ return NULL;
+ }
+ }
+ if (PyErr_Occurred()) { // If PyIter_Next failed
+ return NULL;
+ }
+ }
+ if (PyErr_Occurred()) { // If PyIter_Next failed
+ return NULL;
+ }
+
+ ScopedPyObjectPtr extension_dict(
+ PyObject_GetAttr(descriptor, kextensions_by_name));
+ if (extension_dict == NULL || !PyDict_Check(extension_dict)) {
+ PyErr_SetString(PyExc_TypeError, "extensions_by_name not a dict");
+ return NULL;
+ }
+ Py_ssize_t pos = 0;
+ PyObject* extension_name;
+ PyObject* extension_field;
+
+ while (PyDict_Next(extension_dict, &pos, &extension_name, &extension_field)) {
+ if (PyObject_SetAttr(reinterpret_cast<PyObject*>(cls),
+ extension_name, extension_field) == -1) {
+ return NULL;
+ }
+ ScopedPyObjectPtr py_cfield_descriptor(
+ PyObject_GetAttrString(extension_field, "_cdescriptor"));
+ if (py_cfield_descriptor == NULL) {
+ return NULL;
+ }
+ CFieldDescriptor* cfield_descriptor =
+ reinterpret_cast<CFieldDescriptor*>(py_cfield_descriptor.get());
+ Py_INCREF(extension_field);
+ cfield_descriptor->descriptor_field = extension_field;
+
+ ScopedPyObjectPtr field_name_upcased(
+ PyObject_CallMethod(extension_name, "upper", NULL));
+ if (field_name_upcased == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr field_number_name(PyObject_CallMethod(
+ field_name_upcased, "__add__", "(O)", _NUMBER_string.get()));
+ if (field_number_name == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr number(PyInt_FromLong(
+ cfield_descriptor->descriptor->number()));
+ if (number == NULL) {
+ return NULL;
+ }
+ if (PyObject_SetAttr(reinterpret_cast<PyObject*>(cls),
+ field_number_name, PyInt_FromLong(
+ cfield_descriptor->descriptor->number())) == -1) {
+ return NULL;
+ }
+ }
+
+ Py_RETURN_NONE;
+}
+
+PyObject* DeepCopy(CMessage* self, PyObject* arg) {
+ PyObject* clone = PyObject_CallObject(
+ reinterpret_cast<PyObject*>(Py_TYPE(self)), NULL);
+ if (clone == NULL) {
+ return NULL;
+ }
+ if (!PyObject_TypeCheck(clone, &CMessage_Type)) {
+ Py_DECREF(clone);
+ return NULL;
+ }
+ if (InitAttributes(reinterpret_cast<CMessage*>(clone), NULL, NULL) < 0) {
+ Py_DECREF(clone);
+ return NULL;
+ }
+ if (MergeFrom(reinterpret_cast<CMessage*>(clone),
+ reinterpret_cast<PyObject*>(self)) == NULL) {
+ Py_DECREF(clone);
+ return NULL;
+ }
+ return clone;
+}
+
+PyObject* ToUnicode(CMessage* self) {
+ // Lazy import to prevent circular dependencies
+ ScopedPyObjectPtr text_format(
+ PyImport_ImportModule("google.protobuf.text_format"));
+ if (text_format == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr method_name(PyString_FromString("MessageToString"));
+ if (method_name == NULL) {
+ return NULL;
+ }
+ Py_INCREF(Py_True);
+ ScopedPyObjectPtr encoded(PyObject_CallMethodObjArgs(text_format, method_name,
+ self, Py_True, NULL));
+ Py_DECREF(Py_True);
+ if (encoded == NULL) {
+ return NULL;
+ }
+#if PY_MAJOR_VERSION < 3
+ PyObject* decoded = PyString_AsDecodedObject(encoded, "utf-8", NULL);
+#else
+ PyObject* decoded = PyUnicode_FromEncodedObject(encoded, "utf-8", NULL);
+#endif
+ if (decoded == NULL) {
+ return NULL;
+ }
+ return decoded;
+}
+
+PyObject* Reduce(CMessage* self) {
+ ScopedPyObjectPtr constructor(reinterpret_cast<PyObject*>(Py_TYPE(self)));
+ constructor.inc();
+ ScopedPyObjectPtr args(PyTuple_New(0));
+ if (args == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr state(PyDict_New());
+ if (state == NULL) {
+ return NULL;
+ }
+ ScopedPyObjectPtr serialized(SerializePartialToString(self));
+ if (serialized == NULL) {
+ return NULL;
+ }
+ if (PyDict_SetItemString(state, "serialized", serialized) < 0) {
+ return NULL;
+ }
+ return Py_BuildValue("OOO", constructor.get(), args.get(), state.get());
+}
+
+PyObject* SetState(CMessage* self, PyObject* state) {
+ if (!PyDict_Check(state)) {
+ PyErr_SetString(PyExc_TypeError, "state not a dict");
+ return NULL;
+ }
+ PyObject* serialized = PyDict_GetItemString(state, "serialized");
+ if (serialized == NULL) {
+ return NULL;
+ }
+ if (ParseFromString(self, serialized) == NULL) {
+ return NULL;
+ }
+ Py_RETURN_NONE;
+}
+
+// CMessage static methods:
+PyObject* _GetFieldDescriptor(PyObject* unused, PyObject* arg) {
+ return cdescriptor_pool::FindFieldByName(descriptor_pool, arg);
+}
+
+PyObject* _GetExtensionDescriptor(PyObject* unused, PyObject* arg) {
+ return cdescriptor_pool::FindExtensionByName(descriptor_pool, arg);
+}
+
+static PyMemberDef Members[] = {
+ {"Extensions", T_OBJECT_EX, offsetof(CMessage, extensions), 0,
+ "Extension dict"},
+ {NULL}
+};
+
+static PyMethodDef Methods[] = {
+ { "__deepcopy__", (PyCFunction)DeepCopy, METH_VARARGS,
+ "Makes a deep copy of the class." },
+ { "__reduce__", (PyCFunction)Reduce, METH_NOARGS,
+ "Outputs picklable representation of the message." },
+ { "__setstate__", (PyCFunction)SetState, METH_O,
+ "Inputs picklable representation of the message." },
+ { "__unicode__", (PyCFunction)ToUnicode, METH_NOARGS,
+ "Outputs a unicode representation of the message." },
+ { "AddDescriptors", (PyCFunction)AddDescriptors, METH_O | METH_CLASS,
+ "Adds field descriptors to the class" },
+ { "ByteSize", (PyCFunction)ByteSize, METH_NOARGS,
+ "Returns the size of the message in bytes." },
+ { "Clear", (PyCFunction)Clear, METH_NOARGS,
+ "Clears the message." },
+ { "ClearExtension", (PyCFunction)ClearExtension, METH_O,
+ "Clears a message field." },
+ { "ClearField", (PyCFunction)ClearField, METH_O,
+ "Clears a message field." },
+ { "CopyFrom", (PyCFunction)CopyFrom, METH_O,
+ "Copies a protocol message into the current message." },
+ { "FindInitializationErrors", (PyCFunction)FindInitializationErrors,
+ METH_NOARGS,
+ "Finds unset required fields." },
+ { "FromString", (PyCFunction)FromString, METH_O | METH_CLASS,
+ "Creates new method instance from given serialized data." },
+ { "HasExtension", (PyCFunction)HasExtension, METH_O,
+ "Checks if a message field is set." },
+ { "HasField", (PyCFunction)HasField, METH_O,
+ "Checks if a message field is set." },
+ { "IsInitialized", (PyCFunction)IsInitialized, METH_VARARGS,
+ "Checks if all required fields of a protocol message are set." },
+ { "ListFields", (PyCFunction)ListFields, METH_NOARGS,
+ "Lists all set fields of a message." },
+ { "MergeFrom", (PyCFunction)MergeFrom, METH_O,
+ "Merges a protocol message into the current message." },
+ { "MergeFromString", (PyCFunction)MergeFromString, METH_O,
+ "Merges a serialized message into the current message." },
+ { "ParseFromString", (PyCFunction)ParseFromString, METH_O,
+ "Parses a serialized message into the current message." },
+ { "RegisterExtension", (PyCFunction)RegisterExtension, METH_O | METH_CLASS,
+ "Registers an extension with the current message." },
+ { "SerializePartialToString", (PyCFunction)SerializePartialToString,
+ METH_NOARGS,
+ "Serializes the message to a string, even if it isn't initialized." },
+ { "SerializeToString", (PyCFunction)SerializeToString, METH_NOARGS,
+ "Serializes the message to a string, only for initialized messages." },
+ { "SetInParent", (PyCFunction)SetInParent, METH_NOARGS,
+ "Sets the has bit of the given field in its parent message." },
+ { "WhichOneof", (PyCFunction)WhichOneof, METH_O,
+ "Returns the name of the field set inside a oneof, "
+ "or None if no field is set." },
+
+ // Static Methods.
+ { "_BuildFile", (PyCFunction)Python_BuildFile, METH_O | METH_STATIC,
+ "Registers a new protocol buffer file in the global C++ descriptor pool." },
+ { "_GetFieldDescriptor", (PyCFunction)_GetFieldDescriptor,
+ METH_O | METH_STATIC, "Finds a field descriptor in the message pool." },
+ { "_GetExtensionDescriptor", (PyCFunction)_GetExtensionDescriptor,
+ METH_O | METH_STATIC,
+ "Finds a extension descriptor in the message pool." },
+ { NULL, NULL}
+};
+
+PyObject* GetAttr(CMessage* self, PyObject* name) {
+ PyObject* value = PyDict_GetItem(self->composite_fields, name);
+ if (value != NULL) {
+ Py_INCREF(value);
+ return value;
+ }
+
+ PyObject* descriptor = GetDescriptor(self, name);
+ if (descriptor != NULL) {
+ CFieldDescriptor* cdescriptor =
+ reinterpret_cast<CFieldDescriptor*>(descriptor);
+ const google::protobuf::FieldDescriptor* field_descriptor = cdescriptor->descriptor;
+ if (field_descriptor->label() == google::protobuf::FieldDescriptor::LABEL_REPEATED) {
+ if (field_descriptor->cpp_type() ==
+ google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ PyObject* py_container = PyObject_CallObject(
+ reinterpret_cast<PyObject*>(&RepeatedCompositeContainer_Type),
+ NULL);
+ if (py_container == NULL) {
+ return NULL;
+ }
+ RepeatedCompositeContainer* container =
+ reinterpret_cast<RepeatedCompositeContainer*>(py_container);
+ PyObject* field = cdescriptor->descriptor_field;
+ PyObject* message_type = PyObject_GetAttr(field, kmessage_type);
+ if (message_type == NULL) {
+ return NULL;
+ }
+ PyObject* concrete_class =
+ PyObject_GetAttr(message_type, k_concrete_class);
+ if (concrete_class == NULL) {
+ return NULL;
+ }
+ container->parent = self;
+ container->parent_field = cdescriptor;
+ container->message = self->message;
+ container->owner = self->owner;
+ container->subclass_init = concrete_class;
+ Py_DECREF(message_type);
+ if (PyDict_SetItem(self->composite_fields, name, py_container) < 0) {
+ Py_DECREF(py_container);
+ return NULL;
+ }
+ return py_container;
+ } else {
+ ScopedPyObjectPtr init_args(PyTuple_Pack(2, self, cdescriptor));
+ PyObject* py_container = PyObject_CallObject(
+ reinterpret_cast<PyObject*>(&RepeatedScalarContainer_Type),
+ init_args);
+ if (py_container == NULL) {
+ return NULL;
+ }
+ if (PyDict_SetItem(self->composite_fields, name, py_container) < 0) {
+ Py_DECREF(py_container);
+ return NULL;
+ }
+ return py_container;
+ }
+ } else {
+ if (field_descriptor->cpp_type() ==
+ google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ PyObject* sub_message = InternalGetSubMessage(self, cdescriptor);
+ if (PyDict_SetItem(self->composite_fields, name, sub_message) < 0) {
+ Py_DECREF(sub_message);
+ return NULL;
+ }
+ return sub_message;
+ } else {
+ return InternalGetScalar(self, field_descriptor);
+ }
+ }
+ }
+
+ return CMessage_Type.tp_base->tp_getattro(reinterpret_cast<PyObject*>(self),
+ name);
+}
+
+int SetAttr(CMessage* self, PyObject* name, PyObject* value) {
+ if (PyDict_Contains(self->composite_fields, name)) {
+ PyErr_SetString(PyExc_TypeError, "Can't set composite field");
+ return -1;
+ }
+
+ PyObject* descriptor = GetDescriptor(self, name);
+ if (descriptor != NULL) {
+ AssureWritable(self);
+ CFieldDescriptor* cdescriptor =
+ reinterpret_cast<CFieldDescriptor*>(descriptor);
+ const google::protobuf::FieldDescriptor* field_descriptor = cdescriptor->descriptor;
+ if (field_descriptor->label() == google::protobuf::FieldDescriptor::LABEL_REPEATED) {
+ PyErr_Format(PyExc_AttributeError, "Assignment not allowed to repeated "
+ "field \"%s\" in protocol message object.",
+ field_descriptor->name().c_str());
+ return -1;
+ } else {
+ if (field_descriptor->cpp_type() ==
+ google::protobuf::FieldDescriptor::CPPTYPE_MESSAGE) {
+ PyErr_Format(PyExc_AttributeError, "Assignment not allowed to "
+ "field \"%s\" in protocol message object.",
+ field_descriptor->name().c_str());
+ return -1;
+ } else {
+ return InternalSetScalar(self, field_descriptor, value);
+ }
+ }
+ }
+
+ PyErr_Format(PyExc_AttributeError, "Assignment not allowed");
+ return -1;
+}
+
+} // namespace cmessage
+
+PyTypeObject CMessage_Type = {
+ PyVarObject_HEAD_INIT(&PyType_Type, 0)
+ "google.protobuf.internal."
+ "cpp._message.CMessage", // tp_name
+ sizeof(CMessage), // tp_basicsize
+ 0, // tp_itemsize
+ (destructor)cmessage::Dealloc, // tp_dealloc
+ 0, // tp_print
+ 0, // tp_getattr
+ 0, // tp_setattr
+ 0, // tp_compare
+ 0, // tp_repr
+ 0, // tp_as_number
+ 0, // tp_as_sequence
+ 0, // tp_as_mapping
+ 0, // tp_hash
+ 0, // tp_call
+ (reprfunc)cmessage::ToStr, // tp_str
+ (getattrofunc)cmessage::GetAttr, // tp_getattro
+ (setattrofunc)cmessage::SetAttr, // tp_setattro
+ 0, // tp_as_buffer
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, // tp_flags
+ "A ProtocolMessage", // tp_doc
+ 0, // tp_traverse
+ 0, // tp_clear
+ (richcmpfunc)cmessage::RichCompare, // tp_richcompare
+ 0, // tp_weaklistoffset
+ 0, // tp_iter
+ 0, // tp_iternext
+ cmessage::Methods, // tp_methods
+ cmessage::Members, // tp_members
+ 0, // tp_getset
+ 0, // tp_base
+ 0, // tp_dict
+ 0, // tp_descr_get
+ 0, // tp_descr_set
+ 0, // tp_dictoffset
+ (initproc)cmessage::Init, // tp_init
+ 0, // tp_alloc
+ cmessage::New, // tp_new
+};
+
+// --- Exposing the C proto living inside Python proto to C code:
+
+const Message* (*GetCProtoInsidePyProtoPtr)(PyObject* msg);
+Message* (*MutableCProtoInsidePyProtoPtr)(PyObject* msg);
+
+static const google::protobuf::Message* GetCProtoInsidePyProtoImpl(PyObject* msg) {
+ if (!PyObject_TypeCheck(msg, &CMessage_Type)) {
+ return NULL;
+ }
+ CMessage* cmsg = reinterpret_cast<CMessage*>(msg);
+ return cmsg->message;
+}
+
+static google::protobuf::Message* MutableCProtoInsidePyProtoImpl(PyObject* msg) {
+ if (!PyObject_TypeCheck(msg, &CMessage_Type)) {
+ return NULL;
+ }
+ CMessage* cmsg = reinterpret_cast<CMessage*>(msg);
+ if (PyDict_Size(cmsg->composite_fields) != 0 ||
+ (cmsg->extensions != NULL &&
+ PyDict_Size(cmsg->extensions->values) != 0)) {
+ // There is currently no way of accurately syncing arbitrary changes to
+ // the underlying C++ message back to the CMessage (e.g. removed repeated
+ // composite containers). We only allow direct mutation of the underlying
+ // C++ message if there is no child data in the CMessage.
+ return NULL;
+ }
+ cmessage::AssureWritable(cmsg);
+ return cmsg->message;
+}
+
+static const char module_docstring[] =
+"python-proto2 is a module that can be used to enhance proto2 Python API\n"
+"performance.\n"
+"\n"
+"It provides access to the protocol buffers C++ reflection API that\n"
+"implements the basic protocol buffer functions.";
+
+void InitGlobals() {
+ // TODO(gps): Check all return values in this function for NULL and propagate
+ // the error (MemoryError) on up to result in an import failure. These should
+ // also be freed and reset to NULL during finalization.
+ kPythonZero = PyInt_FromLong(0);
+ kint32min_py = PyInt_FromLong(kint32min);
+ kint32max_py = PyInt_FromLong(kint32max);
+ kuint32max_py = PyLong_FromLongLong(kuint32max);
+ kint64min_py = PyLong_FromLongLong(kint64min);
+ kint64max_py = PyLong_FromLongLong(kint64max);
+ kuint64max_py = PyLong_FromUnsignedLongLong(kuint64max);
+
+ kDESCRIPTOR = PyString_FromString("DESCRIPTOR");
+ k__descriptors = PyString_FromString("__descriptors");
+ kfull_name = PyString_FromString("full_name");
+ kis_extendable = PyString_FromString("is_extendable");
+ kextensions_by_name = PyString_FromString("extensions_by_name");
+ k_extensions_by_name = PyString_FromString("_extensions_by_name");
+ k_extensions_by_number = PyString_FromString("_extensions_by_number");
+ k_concrete_class = PyString_FromString("_concrete_class");
+ kmessage_type = PyString_FromString("message_type");
+ kname = PyString_FromString("name");
+ kfields_by_name = PyString_FromString("fields_by_name");
+
+ global_message_factory = new DynamicMessageFactory(GetDescriptorPool());
+ global_message_factory->SetDelegateToGeneratedFactory(true);
+
+ descriptor_pool = reinterpret_cast<google::protobuf::python::CDescriptorPool*>(
+ Python_NewCDescriptorPool(NULL, NULL));
+}
+
+bool InitProto2MessageModule(PyObject *m) {
+ InitGlobals();
+
+ google::protobuf::python::CMessage_Type.tp_hash = PyObject_HashNotImplemented;
+ if (PyType_Ready(&google::protobuf::python::CMessage_Type) < 0) {
+ return false;
+ }
+
+ // All three of these are actually set elsewhere, directly onto the child
+ // protocol buffer message class, but set them here as well to document that
+ // subclasses need to set these.
+ PyDict_SetItem(google::protobuf::python::CMessage_Type.tp_dict, kDESCRIPTOR, Py_None);
+ PyDict_SetItem(google::protobuf::python::CMessage_Type.tp_dict,
+ k_extensions_by_name, Py_None);
+ PyDict_SetItem(google::protobuf::python::CMessage_Type.tp_dict,
+ k_extensions_by_number, Py_None);
+
+ PyModule_AddObject(m, "Message", reinterpret_cast<PyObject*>(
+ &google::protobuf::python::CMessage_Type));
+
+ google::protobuf::python::RepeatedScalarContainer_Type.tp_new = PyType_GenericNew;
+ google::protobuf::python::RepeatedScalarContainer_Type.tp_hash =
+ PyObject_HashNotImplemented;
+ if (PyType_Ready(&google::protobuf::python::RepeatedScalarContainer_Type) < 0) {
+ return false;
+ }
+
+ PyModule_AddObject(m, "RepeatedScalarContainer",
+ reinterpret_cast<PyObject*>(
+ &google::protobuf::python::RepeatedScalarContainer_Type));
+
+ google::protobuf::python::RepeatedCompositeContainer_Type.tp_new = PyType_GenericNew;
+ google::protobuf::python::RepeatedCompositeContainer_Type.tp_hash =
+ PyObject_HashNotImplemented;
+ if (PyType_Ready(&google::protobuf::python::RepeatedCompositeContainer_Type) < 0) {
+ return false;
+ }
+
+ PyModule_AddObject(
+ m, "RepeatedCompositeContainer",
+ reinterpret_cast<PyObject*>(
+ &google::protobuf::python::RepeatedCompositeContainer_Type));
+
+ google::protobuf::python::ExtensionDict_Type.tp_new = PyType_GenericNew;
+ google::protobuf::python::ExtensionDict_Type.tp_hash = PyObject_HashNotImplemented;
+ if (PyType_Ready(&google::protobuf::python::ExtensionDict_Type) < 0) {
+ return false;
+ }
+
+ PyModule_AddObject(
+ m, "ExtensionDict",
+ reinterpret_cast<PyObject*>(&google::protobuf::python::ExtensionDict_Type));
+
+ if (!google::protobuf::python::InitDescriptor()) {
+ return false;
+ }
+
+ PyObject* enum_type_wrapper = PyImport_ImportModule(
+ "google.protobuf.internal.enum_type_wrapper");
+ if (enum_type_wrapper == NULL) {
+ return false;
+ }
+ google::protobuf::python::EnumTypeWrapper_class =
+ PyObject_GetAttrString(enum_type_wrapper, "EnumTypeWrapper");
+ Py_DECREF(enum_type_wrapper);
+
+ PyObject* message_module = PyImport_ImportModule(
+ "google.protobuf.message");
+ if (message_module == NULL) {
+ return false;
+ }
+ google::protobuf::python::EncodeError_class = PyObject_GetAttrString(message_module,
+ "EncodeError");
+ google::protobuf::python::DecodeError_class = PyObject_GetAttrString(message_module,
+ "DecodeError");
+ Py_DECREF(message_module);
+
+ PyObject* pickle_module = PyImport_ImportModule("pickle");
+ if (pickle_module == NULL) {
+ return false;
+ }
+ google::protobuf::python::PickleError_class = PyObject_GetAttrString(pickle_module,
+ "PickleError");
+ Py_DECREF(pickle_module);
+
+ // Override {Get,Mutable}CProtoInsidePyProto.
+ google::protobuf::python::GetCProtoInsidePyProtoPtr =
+ google::protobuf::python::GetCProtoInsidePyProtoImpl;
+ google::protobuf::python::MutableCProtoInsidePyProtoPtr =
+ google::protobuf::python::MutableCProtoInsidePyProtoImpl;
+
+ return true;
+}
+
+} // namespace python
+} // namespace protobuf
+
+
+#if PY_MAJOR_VERSION >= 3
+static struct PyModuleDef _module = {
+ PyModuleDef_HEAD_INIT,
+ "_message",
+ google::protobuf::python::module_docstring,
+ -1,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+};
+#define INITFUNC PyInit__message
+#define INITFUNC_ERRORVAL NULL
+#else // Python 2
+#define INITFUNC init_message
+#define INITFUNC_ERRORVAL
+#endif
+
+extern "C" {
+ PyMODINIT_FUNC INITFUNC(void) {
+ PyObject* m;
+#if PY_MAJOR_VERSION >= 3
+ m = PyModule_Create(&_module);
+#else
+ m = Py_InitModule3("_message", NULL, google::protobuf::python::module_docstring);
+#endif
+ if (m == NULL) {
+ return INITFUNC_ERRORVAL;
+ }
+
+ if (!google::protobuf::python::InitProto2MessageModule(m)) {
+ Py_DECREF(m);
+ return INITFUNC_ERRORVAL;
+ }
+
+#if PY_MAJOR_VERSION >= 3
+ return m;
+#endif
+ }
+}
+} // namespace google
generated by cgit v1.1 at 2024-05-15 10:41:16 +0000