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#include "upb/def.h"
#include "upb/msg.h"
#ifndef UPB_MSGFACTORY_H_
#define UPB_MSGFACTORY_H_
#ifdef __cplusplus
namespace upb {
class MessageFactory;
}
#endif
UPB_DECLARE_TYPE(upb::MessageFactory, upb_msgfactory)
/** upb_msgfactory ************************************************************/
/* A upb_msgfactory contains a cache of upb_msglayout, upb_handlers, and
* upb_visitorplan objects. These are the objects necessary to represent,
* populate, and and visit upb_msg objects.
*
* These caches are all populated by upb_msgdef, and lazily created on demand.
*/
/* Creates and destroys a msgfactory, respectively. The messages for this
* msgfactory must come from |symtab| (which should outlive the msgfactory). */
upb_msgfactory *upb_msgfactory_new(const upb_symtab *symtab);
void upb_msgfactory_free(upb_msgfactory *f);
const upb_symtab *upb_msgfactory_symtab(const upb_msgfactory *f);
/* The functions to get cached objects, lazily creating them on demand. These
* all require:
*
* - m is in upb_msgfactory_symtab(f)
* - upb_msgdef_mapentry(m) == false (since map messages can't have layouts).
*
* The returned objects will live for as long as the msgfactory does.
*
* TODO(haberman): consider making this thread-safe and take a const
* upb_msgfactory. */
const upb_msglayout *upb_msgfactory_getlayout(upb_msgfactory *f,
const upb_msgdef *m);
#endif /* UPB_MSGFACTORY_H_ */
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