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// Protocol Buffers - Google's data interchange format
// Copyright 2023 Google LLC. 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 LLC 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.
#ifndef PYPB_MESSAGE_H__
#define PYPB_MESSAGE_H__
#include <stdbool.h>
#include "python/protobuf.h"
#include "upb/reflection/message.h"
// Removes the wrapper object for this field from the unset subobject cache.
void PyUpb_Message_CacheDelete(PyObject* _self, const upb_FieldDef* f);
// Sets the field value for `f` to `subobj`, evicting the wrapper object from
// the "unset subobject" cache now that real data exists for it. The caller
// must also update the wrapper associated with `f` to point to `subobj` also.
void PyUpb_Message_SetConcreteSubobj(PyObject* _self, const upb_FieldDef* f,
upb_MessageValue subobj);
// Gets a Python wrapper object for message `u_msg` of type `m`, returning a
// cached wrapper if one was previously created. If a new object is created,
// it will reference `arena`, which must own `u_msg`.
PyObject* PyUpb_Message_Get(upb_Message* u_msg, const upb_MessageDef* m,
PyObject* arena);
// Verifies that a Python object is a message. Sets a TypeError exception and
// returns false on failure.
bool PyUpb_Message_Verify(PyObject* self);
// Gets the upb_Message* for this message object if the message is reified.
// Otherwise returns NULL.
upb_Message* PyUpb_Message_GetIfReified(PyObject* _self);
// Returns the `upb_MessageDef` for a given Message.
const upb_MessageDef* PyUpb_Message_GetMsgdef(PyObject* self);
// Functions that match the corresponding methods on the message object.
PyObject* PyUpb_Message_MergeFrom(PyObject* self, PyObject* arg);
PyObject* PyUpb_Message_MergeFromString(PyObject* self, PyObject* arg);
PyObject* PyUpb_Message_SerializeToString(PyObject* self, PyObject* args,
PyObject* kwargs);
PyObject* PyUpb_Message_SerializePartialToString(PyObject* self, PyObject* args,
PyObject* kwargs);
// Sets fields of the message according to the attribuges in `kwargs`.
int PyUpb_Message_InitAttributes(PyObject* _self, PyObject* args,
PyObject* kwargs);
// Checks that `key` is a field descriptor for an extension type, and that the
// extendee is this message. Otherwise returns NULL and sets a KeyError.
const upb_FieldDef* PyUpb_Message_GetExtensionDef(PyObject* _self,
PyObject* key);
// Clears the given field in this message.
void PyUpb_Message_DoClearField(PyObject* _self, const upb_FieldDef* f);
// Clears the ExtensionDict from the message. The message must have an
// ExtensionDict set.
void PyUpb_Message_ClearExtensionDict(PyObject* _self);
// Implements the equivalent of getattr(msg, field), once `field` has
// already been resolved to a `upb_FieldDef*`.
PyObject* PyUpb_Message_GetFieldValue(PyObject* _self,
const upb_FieldDef* field);
// Implements the equivalent of setattr(msg, field, value), once `field` has
// already been resolved to a `upb_FieldDef*`.
int PyUpb_Message_SetFieldValue(PyObject* _self, const upb_FieldDef* field,
PyObject* value, PyObject* exc);
// Creates message meta class.
PyObject* PyUpb_MessageMeta_DoCreateClass(PyObject* py_descriptor,
const char* name, PyObject* dict);
// Returns the version associated with this message. The version will be
// incremented when the message changes.
int PyUpb_Message_GetVersion(PyObject* _self);
// Module-level init.
bool PyUpb_InitMessage(PyObject* m);
#endif // PYPB_MESSAGE_H__
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