// Amalgamated source file
/*
** This file contains shared definitions that are widely used across upb.
**
** This is a mixed C/C++ interface that offers a full API to both languages.
** See the top-level README for more information.
*/
#ifndef UPB_H_
#define UPB_H_
#include <assert.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#ifdef __cplusplus
namespace upb {
class Allocator;
class Arena;
class Environment;
class ErrorSpace;
class Status;
template <int N> class InlinedArena;
template <int N> class InlinedEnvironment;
}
#endif
/* UPB_INLINE: inline if possible, emit standalone code if required. */
#ifdef __cplusplus
#define UPB_INLINE inline
#elif defined (__GNUC__)
#define UPB_INLINE static __inline__
#else
#define UPB_INLINE static
#endif
/* Hints to the compiler about likely/unlikely branches. */
#define UPB_LIKELY(x) __builtin_expect((x),1)
/* Define UPB_BIG_ENDIAN manually if you're on big endian and your compiler
* doesn't provide these preprocessor symbols. */
#if defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
#define UPB_BIG_ENDIAN
#endif
/* Macros for function attributes on compilers that support them. */
#ifdef __GNUC__
#define UPB_FORCEINLINE __inline__ __attribute__((always_inline))
#define UPB_NOINLINE __attribute__((noinline))
#define UPB_NORETURN __attribute__((__noreturn__))
#else /* !defined(__GNUC__) */
#define UPB_FORCEINLINE
#define UPB_NOINLINE
#define UPB_NORETURN
#endif
#if __STDC_VERSION__ >= 199901L || __cplusplus >= 201103L
/* C99/C++11 versions. */
#include <stdio.h>
#define _upb_snprintf snprintf
#define _upb_vsnprintf vsnprintf
#define _upb_va_copy(a, b) va_copy(a, b)
#elif defined __GNUC__
/* A few hacky workarounds for functions not in C89.
* For internal use only!
* TODO(haberman): fix these by including our own implementations, or finding
* another workaround.
*/
#define _upb_snprintf __builtin_snprintf
#define _upb_vsnprintf __builtin_vsnprintf
#define _upb_va_copy(a, b) __va_copy(a, b)
#else
#error Need implementations of [v]snprintf and va_copy
#endif
#if ((defined(__cplusplus) && __cplusplus >= 201103L) || \
defined(__GXX_EXPERIMENTAL_CXX0X__)) && !defined(UPB_NO_CXX11)
#define UPB_CXX11
#endif
/* UPB_DISALLOW_COPY_AND_ASSIGN()
* UPB_DISALLOW_POD_OPS()
*
* Declare these in the "private" section of a C++ class to forbid copy/assign
* or all POD ops (construct, destruct, copy, assign) on that class. */
#ifdef UPB_CXX11
#include <type_traits>
#define UPB_DISALLOW_COPY_AND_ASSIGN(class_name) \
class_name(const class_name&) = delete; \
void operator=(const class_name&) = delete;
#define UPB_DISALLOW_POD_OPS(class_name, full_class_name) \
class_name() = delete; \
~class_name() = delete; \
UPB_DISALLOW_COPY_AND_ASSIGN(class_name)
#define UPB_ASSERT_STDLAYOUT(type) \
static_assert(std::is_standard_layout<type>::value, \
#type " must be standard layout");
#define UPB_FINAL final
#else /* !defined(UPB_CXX11) */
#define UPB_DISALLOW_COPY_AND_ASSIGN(class_name) \
class_name(const class_name&); \
void operator=(const class_name&);
#define UPB_DISALLOW_POD_OPS(class_name, full_class_name) \
class_name(); \
~class_name(); \
UPB_DISALLOW_COPY_AND_ASSIGN(class_name)
#define UPB_ASSERT_STDLAYOUT(type)
#define UPB_FINAL
#endif
/* UPB_DECLARE_TYPE()
* UPB_DECLARE_DERIVED_TYPE()
* UPB_DECLARE_DERIVED_TYPE2()
*
* Macros for declaring C and C++ types both, including inheritance.
* The inheritance doesn't use real C++ inheritance, to stay compatible with C.
*
* These macros also provide upcasts:
* - in C: types-specific functions (ie. upb_foo_upcast(foo))
* - in C++: upb::upcast(foo) along with implicit conversions
*
* Downcasts are not provided, but upb/def.h defines downcasts for upb::Def. */
#define UPB_C_UPCASTS(ty, base) \
UPB_INLINE base *ty ## _upcast_mutable(ty *p) { return (base*)p; } \
UPB_INLINE const base *ty ## _upcast(const ty *p) { return (const base*)p; }
#define UPB_C_UPCASTS2(ty, base, base2) \
UPB_C_UPCASTS(ty, base) \
UPB_INLINE base2 *ty ## _upcast2_mutable(ty *p) { return (base2*)p; } \
UPB_INLINE const base2 *ty ## _upcast2(const ty *p) { return (const base2*)p; }
#ifdef __cplusplus
#define UPB_BEGIN_EXTERN_C extern "C" {
#define UPB_END_EXTERN_C }
#define UPB_PRIVATE_FOR_CPP private:
#define UPB_DECLARE_TYPE(cppname, cname) typedef cppname cname;
#define UPB_DECLARE_DERIVED_TYPE(cppname, cppbase, cname, cbase) \
UPB_DECLARE_TYPE(cppname, cname) \
UPB_C_UPCASTS(cname, cbase) \
namespace upb { \
template <> \
class Pointer<cppname> : public PointerBase<cppname, cppbase> { \
public: \
explicit Pointer(cppname* ptr) \
: PointerBase<cppname, cppbase>(ptr) {} \
}; \
template <> \
class Pointer<const cppname> \
: public PointerBase<const cppname, const cppbase> { \
public: \
explicit Pointer(const cppname* ptr) \
: PointerBase<const cppname, const cppbase>(ptr) {} \
}; \
}
#define UPB_DECLARE_DERIVED_TYPE2(cppname, cppbase, cppbase2, cname, cbase, \
cbase2) \
UPB_DECLARE_TYPE(cppname, cname) \
UPB_C_UPCASTS2(cname, cbase, cbase2) \
namespace upb { \
template <> \
class Pointer<cppname> : public PointerBase2<cppname, cppbase, cppbase2> { \
public: \
explicit Pointer(cppname* ptr) \
: PointerBase2<cppname, cppbase, cppbase2>(ptr) {} \
}; \
template <> \
class Pointer<const cppname> \
: public PointerBase2<const cppname, const cppbase, const cppbase2> { \
public: \
explicit Pointer(const cppname* ptr) \
: PointerBase2<const cppname, const cppbase, const cppbase2>(ptr) {} \
}; \
}
#else /* !defined(__cplusplus) */
#define UPB_BEGIN_EXTERN_C
#define UPB_END_EXTERN_C
#define UPB_PRIVATE_FOR_CPP
#define UPB_DECLARE_TYPE(cppname, cname) \
struct cname; \
typedef struct cname cname;
#define UPB_DECLARE_DERIVED_TYPE(cppname, cppbase, cname, cbase) \
UPB_DECLARE_TYPE(cppname, cname) \
UPB_C_UPCASTS(cname, cbase)
#define UPB_DECLARE_DERIVED_TYPE2(cppname, cppbase, cppbase2, \
cname, cbase, cbase2) \
UPB_DECLARE_TYPE(cppname, cname) \
UPB_C_UPCASTS2(cname, cbase, cbase2)
#endif /* defined(__cplusplus) */
#define UPB_MAX(x, y) ((x) > (y) ? (x) : (y))
#define UPB_MIN(x, y) ((x) < (y) ? (x) : (y))
#define UPB_UNUSED(var) (void)var
/* UPB_ASSERT(): in release mode, we use the expression without letting it be
* evaluated. This prevents "unused variable" warnings. */
#ifdef NDEBUG
#define UPB_ASSERT(expr) do {} while (false && (expr))
#else
#define UPB_ASSERT(expr) assert(expr)
#endif
/* UPB_ASSERT_DEBUGVAR(): assert that uses functions or variables that only
* exist in debug mode. This turns into regular assert. */
#define UPB_ASSERT_DEBUGVAR(expr) assert(expr)
#ifdef __GNUC__
#define UPB_UNREACHABLE() do { assert(0); __builtin_unreachable(); } while(0)
#else
#define UPB_UNREACHABLE() do { assert(0); } while(0)
#endif
/* Generic function type. */
typedef void upb_func();
/* C++ Casts ******************************************************************/
#ifdef __cplusplus
namespace upb {
template <class T> class Pointer;
/* Casts to a subclass. The caller must know that cast is correct; an
* incorrect cast will throw an assertion failure in debug mode.
*
* Example:
* upb::Def* def = GetDef();
* // Assert-fails if this was not actually a MessageDef.
* upb::MessgeDef* md = upb::down_cast<upb::MessageDef>(def);
*
* Note that downcasts are only defined for some types (at the moment you can
* only downcast from a upb::Def to a specific Def type). */
template<class To, class From> To down_cast(From* f);
/* Casts to a subclass. If the class does not actually match the given To type,
* returns NULL.
*
* Example:
* upb::Def* def = GetDef();
* // md will be NULL if this was not actually a MessageDef.
* upb::MessgeDef* md = upb::down_cast<upb::MessageDef>(def);
*
* Note that dynamic casts are only defined for some types (at the moment you
* can only downcast from a upb::Def to a specific Def type).. */
template<class To, class From> To dyn_cast(From* f);
/* Casts to any base class, or the type itself (ie. can be a no-op).
*
* Example:
* upb::MessageDef* md = GetDef();
* // This will fail to compile if this wasn't actually a base class.
* upb::Def* def = upb::upcast(md);
*/
template <class T> inline Pointer<T> upcast(T *f) { return Pointer<T>(f); }
/* Attempt upcast to specific base class.
*
* Example:
* upb::MessageDef* md = GetDef();
* upb::upcast_to<upb::Def>(md)->MethodOnDef();
*/
template <class T, class F> inline T* upcast_to(F *f) {
return static_cast<T*>(upcast(f));
}
/* PointerBase<T>: implementation detail of upb::upcast().
* It is implicitly convertable to pointers to the Base class(es).
*/
template <class T, class Base>
class PointerBase {
public:
explicit PointerBase(T* ptr) : ptr_(ptr) {}
operator T*() { return ptr_; }
operator Base*() { return (Base*)ptr_; }
private:
T* ptr_;
};
template <class T, class Base, class Base2>
class PointerBase2 : public PointerBase<T, Base> {
public:
explicit PointerBase2(T* ptr) : PointerBase<T, Base>(ptr) {}
operator Base2*() { return Pointer<Base>(*this); }
};
}
#endif
/* A list of types as they are encoded on-the-wire. */
typedef enum {
UPB_WIRE_TYPE_VARINT = 0,
UPB_WIRE_TYPE_64BIT = 1,
UPB_WIRE_TYPE_DELIMITED = 2,
UPB_WIRE_TYPE_START_GROUP = 3,
UPB_WIRE_TYPE_END_GROUP = 4,
UPB_WIRE_TYPE_32BIT = 5
} upb_wiretype_t;
/* upb::ErrorSpace ************************************************************/
/* A upb::ErrorSpace represents some domain of possible error values. This lets
* upb::Status attach specific error codes to operations, like POSIX/C errno,
* Win32 error codes, etc. Clients who want to know the very specific error
* code can check the error space and then know the type of the integer code.
*
* NOTE: upb::ErrorSpace is currently not used and should be considered
* experimental. It is important primarily in cases where upb is performing
* I/O, but upb doesn't currently have any components that do this. */
UPB_DECLARE_TYPE(upb::ErrorSpace, upb_errorspace)
#ifdef __cplusplus
class upb::ErrorSpace {
#else
struct upb_errorspace {
#endif
const char *name;
};
/* upb::Status ****************************************************************/
/* upb::Status represents a success or failure status and error message.
* It owns no resources and allocates no memory, so it should work
* even in OOM situations. */
UPB_DECLARE_TYPE(upb::Status, upb_status)
/* The maximum length of an error message before it will get truncated. */
#define UPB_STATUS_MAX_MESSAGE 128
UPB_BEGIN_EXTERN_C
const char *upb_status_errmsg(const upb_status *status);
bool upb_ok(const upb_status *status);
upb_errorspace *upb_status_errspace(const upb_status *status);
int upb_status_errcode(const upb_status *status);
/* Any of the functions that write to a status object allow status to be NULL,
* to support use cases where the function's caller does not care about the
* status message. */
void upb_status_clear(upb_status *status);
void upb_status_seterrmsg(upb_status *status, const char *msg);
void upb_status_seterrf(upb_status *status, const char *fmt, ...);
void upb_status_vseterrf(upb_status *status, const char *fmt, va_list args);
void upb_status_copy(upb_status *to, const upb_status *from);
UPB_END_EXTERN_C
#ifdef __cplusplus
class upb::Status {
public:
Status() { upb_status_clear(this); }
/* Returns true if there is no error. */
bool ok() const { return upb_ok(this); }
/* Optional error space and code, useful if the caller wants to
* programmatically check the specific kind of error. */
ErrorSpace* error_space() { return upb_status_errspace(this); }
int error_code() const { return upb_status_errcode(this); }
/* The returned string is invalidated by any other call into the status. */
const char *error_message() const { return upb_status_errmsg(this); }
/* The error message will be truncated if it is longer than
* UPB_STATUS_MAX_MESSAGE-4. */
void SetErrorMessage(const char* msg) { upb_status_seterrmsg(this, msg); }
void SetFormattedErrorMessage(const char* fmt, ...) {
va_list args;
va_start(args, fmt);
upb_status_vseterrf(this, fmt, args);
va_end(args);
}
/* Resets the status to a successful state with no message. */
void Clear() { upb_status_clear(this); }
void CopyFrom(const Status& other) { upb_status_copy(this, &other); }
private:
UPB_DISALLOW_COPY_AND_ASSIGN(Status)
#else
struct upb_status {
#endif
bool ok_;
/* Specific status code defined by some error space (optional). */
int code_;
upb_errorspace *error_space_;
/* TODO(haberman): add file/line of error? */
/* Error message; NULL-terminated. */
char msg[UPB_STATUS_MAX_MESSAGE];
};
#define UPB_STATUS_INIT {true, 0, NULL, {0}}
/** Built-in error spaces. ****************************************************/
/* Errors raised by upb that we want to be able to detect programmatically. */
typedef enum {
UPB_NOMEM /* Can't reuse ENOMEM because it is POSIX, not ISO C. */
} upb_errcode_t;
extern upb_errorspace upb_upberr;
void upb_upberr_setoom(upb_status *s);
/* Since errno is defined by standard C, we define an error space for it in
* core upb. Other error spaces should be defined in other, platform-specific
* modules. */
extern upb_errorspace upb_errnoerr;
/** upb::Allocator ************************************************************/
/* A upb::Allocator is a possibly-stateful allocator object.
*
* It could either be an arena allocator (which doesn't require individual
* free() calls) or a regular malloc() (which does). The client must therefore
* free memory unless it knows that the allocator is an arena allocator. */
UPB_DECLARE_TYPE(upb::Allocator, upb_alloc)
/* A malloc()/free() function.
* If "size" is 0 then the function acts like free(), otherwise it acts like
* realloc(). Only "oldsize" bytes from a previous allocation are preserved. */
typedef void *upb_alloc_func(upb_alloc *alloc, void *ptr, size_t oldsize,
size_t size);
#ifdef __cplusplus
class upb::Allocator UPB_FINAL {
public:
Allocator() {}
private:
UPB_DISALLOW_COPY_AND_ASSIGN(Allocator)
public:
#else
struct upb_alloc {
#endif /* __cplusplus */
upb_alloc_func *func;
};
UPB_INLINE void *upb_malloc(upb_alloc *alloc, size_t size) {
UPB_ASSERT(alloc);
return alloc->func(alloc, NULL, 0, size);
}
UPB_INLINE void *upb_realloc(upb_alloc *alloc, void *ptr, size_t oldsize,
size_t size) {
UPB_ASSERT(alloc);
return alloc->func(alloc, ptr, oldsize, size);
}
UPB_INLINE void upb_free(upb_alloc *alloc, void *ptr) {
assert(alloc);
alloc->func(alloc, ptr, 0, 0);
}
/* The global allocator used by upb. Uses the standard malloc()/free(). */
extern upb_alloc upb_alloc_global;
/* Functions that hard-code the global malloc.
*
* We still get benefit because we can put custom logic into our global
* allocator, like injecting out-of-memory faults in debug/testing builds. */
UPB_INLINE void *upb_gmalloc(size_t size) {
return upb_malloc(&upb_alloc_global, size);
}
UPB_INLINE void *upb_grealloc(void *ptr, size_t oldsize, size_t size) {
return upb_realloc(&upb_alloc_global, ptr, oldsize, size);
}
UPB_INLINE void upb_gfree(void *ptr) {
upb_free(&upb_alloc_global, ptr);
}
/* upb::Arena *****************************************************************/
/* upb::Arena is a specific allocator implementation that uses arena allocation.
* The user provides an allocator that will be used to allocate the underlying
* arena blocks. Arenas by nature do not require the individual allocations
* to be freed. However the Arena does allow users to register cleanup
* functions that will run when the arena is destroyed.
*
* A upb::Arena is *not* thread-safe.
*
* You could write a thread-safe arena allocator that satisfies the
* upb::Allocator interface, but it would not be as efficient for the
* single-threaded case. */
UPB_DECLARE_TYPE(upb::Arena, upb_arena)
typedef void upb_cleanup_func(void *ud);
#define UPB_ARENA_BLOCK_OVERHEAD (sizeof(size_t)*4)
UPB_BEGIN_EXTERN_C
void upb_arena_init(upb_arena *a);
void upb_arena_init2(upb_arena *a, void *mem, size_t n, upb_alloc *alloc);
void upb_arena_uninit(upb_arena *a);
bool upb_arena_addcleanup(upb_arena *a, upb_cleanup_func *func, void *ud);
size_t upb_arena_bytesallocated(const upb_arena *a);
void upb_arena_setnextblocksize(upb_arena *a, size_t size);
void upb_arena_setmaxblocksize(upb_arena *a, size_t size);
UPB_INLINE upb_alloc *upb_arena_alloc(upb_arena *a) { return (upb_alloc*)a; }
UPB_END_EXTERN_C
#ifdef __cplusplus
class upb::Arena {
public:
/* A simple arena with no initial memory block and the default allocator. */
Arena() { upb_arena_init(this); }
/* Constructs an arena with the given initial block which allocates blocks
* with the given allocator. The given allocator must outlive the Arena.
*
* If you pass NULL for the allocator it will default to the global allocator
* upb_alloc_global, and NULL/0 for the initial block will cause there to be
* no initial block. */
Arena(void *mem, size_t len, Allocator* a) {
upb_arena_init2(this, mem, len, a);
}
~Arena() { upb_arena_uninit(this); }
/* Sets the size of the next block the Arena will request (unless the
* requested allocation is larger). Each block will double in size until the
* max limit is reached. */
void SetNextBlockSize(size_t size) { upb_arena_setnextblocksize(this, size); }
/* Sets the maximum block size. No blocks larger than this will be requested
* from the underlying allocator unless individual arena allocations are
* larger. */
void SetMaxBlockSize(size_t size) { upb_arena_setmaxblocksize(this, size); }
/* Allows this arena to be used as a generic allocator.
*
* The arena does not need free() calls so when using Arena as an allocator
* it is safe to skip them. However they are no-ops so there is no harm in
* calling free() either. */
Allocator* allocator() { return upb_arena_alloc(this); }
/* Add a cleanup function to run when the arena is destroyed.
* Returns false on out-of-memory. */
bool AddCleanup(upb_cleanup_func* func, void* ud) {
return upb_arena_addcleanup(this, func, ud);
}
/* Total number of bytes that have been allocated. It is undefined what
* Realloc() does to this counter. */
size_t BytesAllocated() const {
return upb_arena_bytesallocated(this);
}
private:
UPB_DISALLOW_COPY_AND_ASSIGN(Arena)
#else
struct upb_arena {
#endif /* __cplusplus */
/* We implement the allocator interface.
* This must be the first member of upb_arena! */
upb_alloc alloc;
/* Allocator to allocate arena blocks. We are responsible for freeing these
* when we are destroyed. */
upb_alloc *block_alloc;
size_t bytes_allocated;
size_t next_block_size;
size_t max_block_size;
/* Linked list of blocks. Points to an arena_block, defined in env.c */
void *block_head;
/* Cleanup entries. Pointer to a cleanup_ent, defined in env.c */
void *cleanup_head;
/* For future expansion, since the size of this struct is exposed to users. */
void *future1;
void *future2;
};
/* upb::Environment ***********************************************************/
/* A upb::Environment provides a means for injecting malloc and an
* error-reporting callback into encoders/decoders. This allows them to be
* independent of nearly all assumptions about their actual environment.
*
* It is also a container for allocating the encoders/decoders themselves that
* insulates clients from knowing their actual size. This provides ABI
* compatibility even if the size of the objects change. And this allows the
* structure definitions to be in the .c files instead of the .h files, making
* the .h files smaller and more readable.
*
* We might want to consider renaming this to "Pipeline" if/when the concept of
* a pipeline element becomes more formalized. */
UPB_DECLARE_TYPE(upb::Environment, upb_env)
/* A function that receives an error report from an encoder or decoder. The
* callback can return true to request that the error should be recovered, but
* if the error is not recoverable this has no effect. */
typedef bool upb_error_func(void *ud, const upb_status *status);
UPB_BEGIN_EXTERN_C
void upb_env_init(upb_env *e);
void upb_env_init2(upb_env *e, void *mem, size_t n, upb_alloc *alloc);
void upb_env_uninit(upb_env *e);
void upb_env_initonly(upb_env *e);
UPB_INLINE upb_arena *upb_env_arena(upb_env *e) { return (upb_arena*)e; }
bool upb_env_ok(const upb_env *e);
void upb_env_seterrorfunc(upb_env *e, upb_error_func *func, void *ud);
/* Convenience wrappers around the methods of the contained arena. */
void upb_env_reporterrorsto(upb_env *e, upb_status *s);
bool upb_env_reporterror(upb_env *e, const upb_status *s);
void *upb_env_malloc(upb_env *e, size_t size);
void *upb_env_realloc(upb_env *e, void *ptr, size_t oldsize, size_t size);
void upb_env_free(upb_env *e, void *ptr);
bool upb_env_addcleanup(upb_env *e, upb_cleanup_func *func, void *ud);
size_t upb_env_bytesallocated(const upb_env *e);
UPB_END_EXTERN_C
#ifdef __cplusplus
class upb::Environment {
public:
/* The given Arena must outlive this environment. */
Environment() { upb_env_initonly(this); }
Environment(void *mem, size_t len, Allocator *a) : arena_(mem, len, a) {
upb_env_initonly(this);
}
Arena* arena() { return upb_env_arena(this); }
/* Set a custom error reporting function. */
void SetErrorFunction(upb_error_func* func, void* ud) {
upb_env_seterrorfunc(this, func, ud);
}
/* Set the error reporting function to simply copy the status to the given
* status and abort. */
void ReportErrorsTo(Status* status) { upb_env_reporterrorsto(this, status); }
/* Returns true if all allocations and AddCleanup() calls have succeeded,
* and no errors were reported with ReportError() (except ones that recovered
* successfully). */
bool ok() const { return upb_env_ok(this); }
/* Reports an error to this environment's callback, returning true if
* the caller should try to recover. */
bool ReportError(const Status* status) {
return upb_env_reporterror(this, status);
}
private:
UPB_DISALLOW_COPY_AND_ASSIGN(Environment)
#else
struct upb_env {
#endif /* __cplusplus */
upb_arena arena_;
upb_error_func *error_func_;
void *error_ud_;
bool ok_;
};
/* upb::InlinedArena **********************************************************/
/* upb::InlinedEnvironment ****************************************************/
/* upb::InlinedArena and upb::InlinedEnvironment seed their arenas with a
* predefined amount of memory. No heap memory will be allocated until the
* initial block is exceeded.
*
* These types only exist in C++ */
#ifdef __cplusplus
template <int N> class upb::InlinedArena : public upb::Arena {
public:
InlinedArena() : Arena(initial_block_, N, NULL) {}
explicit InlinedArena(Allocator* a) : Arena(initial_block_, N, a) {}
private:
UPB_DISALLOW_COPY_AND_ASSIGN(InlinedArena)
char initial_block_[N + UPB_ARENA_BLOCK_OVERHEAD];
};
template <int N> class upb::InlinedEnvironment : public upb::Environment {
public:
InlinedEnvironment() : Environment(initial_block_, N, NULL) {}
explicit InlinedEnvironment(Allocator *a)
: Environment(initial_block_, N, a) {}
private:
UPB_DISALLOW_COPY_AND_ASSIGN(InlinedEnvironment)
char initial_block_[N + UPB_ARENA_BLOCK_OVERHEAD];
};
#endif /* __cplusplus */
#endif /* UPB_H_ */
/*
** upb_decode: parsing into a upb_msg using a upb_msglayout.
*/
#ifndef UPB_DECODE_H_
#define UPB_DECODE_H_
/*
** upb::Message is a representation for protobuf messages.
**
** However it differs from other common representations like
** google::protobuf::Message in one key way: it does not prescribe any
** ownership between messages and submessages, and it relies on the
** client to delete each message/submessage/array/map at the appropriate
** time.
**
** A client can access a upb::Message without knowing anything about
** ownership semantics, but to create or mutate a message a user needs
** to implement the memory management themselves.
**
** Currently all messages, arrays, and maps store a upb_alloc* internally.
** Mutating operations use this when they require dynamically-allocated
** memory. We could potentially eliminate this size overhead later by
** letting the user flip a bit on the factory that prevents this from
** being stored. The user would then need to use separate functions where
** the upb_alloc* is passed explicitly. However for handlers to populate
** such structures, they would need a place to store this upb_alloc* during
** parsing; upb_handlers don't currently have a good way to accommodate this.
**
** TODO: UTF-8 checking?
**/
#ifndef UPB_MSG_H_
#define UPB_MSG_H_
/*
** Defs are upb's internal representation of the constructs that can appear
** in a .proto file:
**
** - upb::MessageDef (upb_msgdef): describes a "message" construct.
** - upb::FieldDef (upb_fielddef): describes a message field.
** - upb::FileDef (upb_filedef): describes a .proto file and its defs.
** - upb::EnumDef (upb_enumdef): describes an enum.
** - upb::OneofDef (upb_oneofdef): describes a oneof.
** - upb::Def (upb_def): base class of all the others.
**
** TODO: definitions of services.
**
** Like upb_refcounted objects, defs are mutable only until frozen, and are
** only thread-safe once frozen.
**
** This is a mixed C/C++ interface that offers a full API to both languages.
** See the top-level README for more information.
*/
#ifndef UPB_DEF_H_
#define UPB_DEF_H_
/*
** upb::RefCounted (upb_refcounted)
**
** A refcounting scheme that supports circular refs. It accomplishes this by
** partitioning the set of objects into groups such that no cycle spans groups;
** we can then reference-count the group as a whole and ignore refs within the
** group. When objects are mutable, these groups are computed very
** conservatively; we group any objects that have ever had a link between them.
** When objects are frozen, we compute strongly-connected components which
** allows us to be precise and only group objects that are actually cyclic.
**
** This is a mixed C/C++ interface that offers a full API to both languages.
** See the top-level README for more information.
*/
#ifndef UPB_REFCOUNTED_H_
#define UPB_REFCOUNTED_H_
/*
** upb_table
**
** This header is INTERNAL-ONLY! Its interfaces are not public or stable!
** This file defines very fast int->upb_value (inttable) and string->upb_value
** (strtable) hash tables.
**
** The table uses chained scatter with Brent's variation (inspired by the Lua
** implementation of hash tables). The hash function for strings is Austin
** Appleby's "MurmurHash."
**
** The inttable uses uintptr_t as its key, which guarantees it can be used to
** store pointers or integers of at least 32 bits (upb isn't really useful on
** systems where sizeof(void*) < 4).
**
** The table must be homogenous (all values of the same type). In debug
** mode, we check this on insert and lookup.
*/
#ifndef UPB_TABLE_H_
#define UPB_TABLE_H_
#include <stdint.h>
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif
/* upb_value ******************************************************************/
/* A tagged union (stored untagged inside the table) so that we can check that
* clients calling table accessors are correctly typed without having to have
* an explosion of accessors. */
typedef enum {
UPB_CTYPE_INT32 = 1,
UPB_CTYPE_INT64 = 2,
UPB_CTYPE_UINT32 = 3,
UPB_CTYPE_UINT64 = 4,
UPB_CTYPE_BOOL = 5,
UPB_CTYPE_CSTR = 6,
UPB_CTYPE_PTR = 7,
UPB_CTYPE_CONSTPTR = 8,
UPB_CTYPE_FPTR = 9,
UPB_CTYPE_FLOAT = 10,
UPB_CTYPE_DOUBLE = 11
} upb_ctype_t;
typedef struct {
uint64_t val;
#ifndef NDEBUG
/* In debug mode we carry the value type around also so we can check accesses
* to be sure the right member is being read. */
upb_ctype_t ctype;
#endif
} upb_value;
#ifdef NDEBUG
#define SET_TYPE(dest, val) UPB_UNUSED(val)
#else
#define SET_TYPE(dest, val) dest = val
#endif
/* Like strdup(), which isn't always available since it's not ANSI C. */
char *upb_strdup(const char *s, upb_alloc *a);
/* Variant that works with a length-delimited rather than NULL-delimited string,
* as supported by strtable. */
char *upb_strdup2(const char *s, size_t len, upb_alloc *a);
UPB_INLINE char *upb_gstrdup(const char *s) {
return upb_strdup(s, &upb_alloc_global);
}
UPB_INLINE void _upb_value_setval(upb_value *v, uint64_t val,
upb_ctype_t ctype) {
v->val = val;
SET_TYPE(v->ctype, ctype);
}
UPB_INLINE upb_value _upb_value_val(uint64_t val, upb_ctype_t ctype) {
upb_value ret;
_upb_value_setval(&ret, val, ctype);
return ret;
}
/* For each value ctype, define the following set of functions:
*
* // Get/set an int32 from a upb_value.
* int32_t upb_value_getint32(upb_value val);
* void upb_value_setint32(upb_value *val, int32_t cval);
*
* // Construct a new upb_value from an int32.
* upb_value upb_value_int32(int32_t val); */
#define FUNCS(name, membername, type_t, converter, proto_type) \
UPB_INLINE void upb_value_set ## name(upb_value *val, type_t cval) { \
val->val = (converter)cval; \
SET_TYPE(val->ctype, proto_type); \
} \
UPB_INLINE upb_value upb_value_ ## name(type_t val) { \
upb_value ret; \
upb_value_set ## name(&ret, val); \
return ret; \
} \
UPB_INLINE type_t upb_value_get ## name(upb_value val) { \
UPB_ASSERT_DEBUGVAR(val.ctype == proto_type); \
return (type_t)(converter)val.val; \
}
FUNCS(int32, int32, int32_t, int32_t, UPB_CTYPE_INT32)
FUNCS(int64, int64, int64_t, int64_t, UPB_CTYPE_INT64)
FUNCS(uint32, uint32, uint32_t, uint32_t, UPB_CTYPE_UINT32)
FUNCS(uint64, uint64, uint64_t, uint64_t, UPB_CTYPE_UINT64)
FUNCS(bool, _bool, bool, bool, UPB_CTYPE_BOOL)
FUNCS(cstr, cstr, char*, uintptr_t, UPB_CTYPE_CSTR)
FUNCS(ptr, ptr, void*, uintptr_t, UPB_CTYPE_PTR)
FUNCS(constptr, constptr, const void*, uintptr_t, UPB_CTYPE_CONSTPTR)
FUNCS(fptr, fptr, upb_func*, uintptr_t, UPB_CTYPE_FPTR)
#undef FUNCS
UPB_INLINE void upb_value_setfloat(upb_value *val, float cval) {
memcpy(&val->val, &cval, sizeof(cval));
SET_TYPE(val->ctype, UPB_CTYPE_FLOAT);
}
UPB_INLINE void upb_value_setdouble(upb_value *val, double cval) {
memcpy(&val->val, &cval, sizeof(cval));
SET_TYPE(val->ctype, UPB_CTYPE_DOUBLE);
}
UPB_INLINE upb_value upb_value_float(float cval) {
upb_value ret;
upb_value_setfloat(&ret, cval);
return ret;
}
UPB_INLINE upb_value upb_value_double(double cval) {
upb_value ret;
upb_value_setdouble(&ret, cval);
return ret;
}
#undef SET_TYPE
/* upb_tabkey *****************************************************************/
/* Either:
* 1. an actual integer key, or
* 2. a pointer to a string prefixed by its uint32_t length, owned by us.
*
* ...depending on whether this is a string table or an int table. We would
* make this a union of those two types, but C89 doesn't support statically
* initializing a non-first union member. */
typedef uintptr_t upb_tabkey;
#define UPB_TABKEY_NUM(n) n
#define UPB_TABKEY_NONE 0
/* The preprocessor isn't quite powerful enough to turn the compile-time string
* length into a byte-wise string representation, so code generation needs to
* help it along.
*
* "len1" is the low byte and len4 is the high byte. */
#ifdef UPB_BIG_ENDIAN
#define UPB_TABKEY_STR(len1, len2, len3, len4, strval) \
(uintptr_t)(len4 len3 len2 len1 strval)
#else
#define UPB_TABKEY_STR(len1, len2, len3, len4, strval) \
(uintptr_t)(len1 len2 len3 len4 strval)
#endif
UPB_INLINE char *upb_tabstr(upb_tabkey key, uint32_t *len) {
char* mem = (char*)key;
if (len) memcpy(len, mem, sizeof(*len));
return mem + sizeof(*len);
}
/* upb_tabval *****************************************************************/
#ifdef __cplusplus
/* Status initialization not supported.
*
* This separate definition is necessary because in C++, UINTPTR_MAX isn't
* reliably available. */
typedef struct {
uint64_t val;
} upb_tabval;
#else
/* C -- supports static initialization, but to support static initialization of
* both integers and points for both 32 and 64 bit targets, it takes a little
* bit of doing. */
#if UINTPTR_MAX == 0xffffffffffffffffULL
#define UPB_PTR_IS_64BITS
#elif UINTPTR_MAX != 0xffffffff
#error Could not determine how many bits pointers are.
#endif
typedef union {
/* For static initialization.
*
* Unfortunately this ugliness is necessary -- it is the only way that we can,
* with -std=c89 -pedantic, statically initialize this to either a pointer or
* an integer on 32-bit platforms. */
struct {
#ifdef UPB_PTR_IS_64BITS
uintptr_t val;
#else
uintptr_t val1;
uintptr_t val2;
#endif
} staticinit;
/* The normal accessor that we use for everything at runtime. */
uint64_t val;
} upb_tabval;
#ifdef UPB_PTR_IS_64BITS
#define UPB_TABVALUE_INT_INIT(v) {{v}}
#define UPB_TABVALUE_EMPTY_INIT {{-1}}
#else
/* 32-bit pointers */
#ifdef UPB_BIG_ENDIAN
#define UPB_TABVALUE_INT_INIT(v) {{0, v}}
#define UPB_TABVALUE_EMPTY_INIT {{-1, -1}}
#else
#define UPB_TABVALUE_INT_INIT(v) {{v, 0}}
#define UPB_TABVALUE_EMPTY_INIT {{-1, -1}}
#endif
#endif
#define UPB_TABVALUE_PTR_INIT(v) UPB_TABVALUE_INT_INIT((uintptr_t)v)
#undef UPB_PTR_IS_64BITS
#endif /* __cplusplus */
/* upb_table ******************************************************************/
typedef struct _upb_tabent {
upb_tabkey key;
upb_tabval val;
/* Internal chaining. This is const so we can create static initializers for
* tables. We cast away const sometimes, but *only* when the containing
* upb_table is known to be non-const. This requires a bit of care, but
* the subtlety is confined to table.c. */
const struct _upb_tabent *next;
} upb_tabent;
typedef struct {
size_t count; /* Number of entries in the hash part. */
size_t mask; /* Mask to turn hash value -> bucket. */
upb_ctype_t ctype; /* Type of all values. */
uint8_t size_lg2; /* Size of the hashtable part is 2^size_lg2 entries. */
/* Hash table entries.
* Making this const isn't entirely accurate; what we really want is for it to
* have the same const-ness as the table it's inside. But there's no way to
* declare that in C. So we have to make it const so that we can statically
* initialize const hash tables. Then we cast away const when we have to.
*/
const upb_tabent *entries;
#ifndef NDEBUG
/* This table's allocator. We make the user pass it in to every relevant
* function and only use this to check it in debug mode. We do this solely
* to keep upb_table as small as possible. This might seem slightly paranoid
* but the plan is to use upb_table for all map fields and extension sets in
* a forthcoming message representation, so there could be a lot of these.
* If this turns out to be too annoying later, we can change it (since this
* is an internal-only header file). */
upb_alloc *alloc;
#endif
} upb_table;
#ifdef NDEBUG
# define UPB_TABLE_INIT(count, mask, ctype, size_lg2, entries) \
{count, mask, ctype, size_lg2, entries}
#else
# ifdef UPB_DEBUG_REFS
/* At the moment the only mutable tables we statically initialize are debug
* ref tables. */
# define UPB_TABLE_INIT(count, mask, ctype, size_lg2, entries) \
{count, mask, ctype, size_lg2, entries, &upb_alloc_debugrefs}
# else
# define UPB_TABLE_INIT(count, mask, ctype, size_lg2, entries) \
{count, mask, ctype, size_lg2, entries, NULL}
# endif
#endif
typedef struct {
upb_table t;
} upb_strtable;
#define UPB_STRTABLE_INIT(count, mask, ctype, size_lg2, entries) \
{UPB_TABLE_INIT(count, mask, ctype, size_lg2, entries)}
#define UPB_EMPTY_STRTABLE_INIT(ctype) \
UPB_STRTABLE_INIT(0, 0, ctype, 0, NULL)
typedef struct {
upb_table t; /* For entries that don't fit in the array part. */
const upb_tabval *array; /* Array part of the table. See const note above. */
size_t array_size; /* Array part size. */
size_t array_count; /* Array part number of elements. */
} upb_inttable;
#define UPB_INTTABLE_INIT(count, mask, ctype, size_lg2, ent, a, asize, acount) \
{UPB_TABLE_INIT(count, mask, ctype, size_lg2, ent), a, asize, acount}
#define UPB_EMPTY_INTTABLE_INIT(ctype) \
UPB_INTTABLE_INIT(0, 0, ctype, 0, NULL, NULL, 0, 0)
#define UPB_ARRAY_EMPTYENT -1
UPB_INLINE size_t upb_table_size(const upb_table *t) {
if (t->size_lg2 == 0)
return 0;
else
return 1 << t->size_lg2;
}
/* Internal-only functions, in .h file only out of necessity. */
UPB_INLINE bool upb_tabent_isempty(const upb_tabent *e) {
return e->key == 0;
}
/* Used by some of the unit tests for generic hashing functionality. */
uint32_t MurmurHash2(const void * key, size_t len, uint32_t seed);
UPB_INLINE uintptr_t upb_intkey(uintptr_t key) {
return key;
}
UPB_INLINE uint32_t upb_inthash(uintptr_t key) {
return (uint32_t)key;
}
static const upb_tabent *upb_getentry(const upb_table *t, uint32_t hash) {
return t->entries + (hash & t->mask);
}
UPB_INLINE bool upb_arrhas(upb_tabval key) {
return key.val != (uint64_t)-1;
}
/* Initialize and uninitialize a table, respectively. If memory allocation
* failed, false is returned that the table is uninitialized. */
bool upb_inttable_init2(upb_inttable *table, upb_ctype_t ctype, upb_alloc *a);
bool upb_strtable_init2(upb_strtable *table, upb_ctype_t ctype, upb_alloc *a);
void upb_inttable_uninit2(upb_inttable *table, upb_alloc *a);
void upb_strtable_uninit2(upb_strtable *table, upb_alloc *a);
UPB_INLINE bool upb_inttable_init(upb_inttable *table, upb_ctype_t ctype) {
return upb_inttable_init2(table, ctype, &upb_alloc_global);
}
UPB_INLINE bool upb_strtable_init(upb_strtable *table, upb_ctype_t ctype) {
return upb_strtable_init2(table, ctype, &upb_alloc_global);
}
UPB_INLINE void upb_inttable_uninit(upb_inttable *table) {
upb_inttable_uninit2(table, &upb_alloc_global);
}
UPB_INLINE void upb_strtable_uninit(upb_strtable *table) {
upb_strtable_uninit2(table, &upb_alloc_global);
}
/* Returns the number of values in the table. */
size_t upb_inttable_count(const upb_inttable *t);
UPB_INLINE size_t upb_strtable_count(const upb_strtable *t) {
return t->t.count;
}
void upb_inttable_packedsize(const upb_inttable *t, size_t *size);
void upb_strtable_packedsize(const upb_strtable *t, size_t *size);
upb_inttable *upb_inttable_pack(const upb_inttable *t, void *p, size_t *ofs,
size_t size);
upb_strtable *upb_strtable_pack(const upb_strtable *t, void *p, size_t *ofs,
size_t size);
/* Inserts the given key into the hashtable with the given value. The key must
* not already exist in the hash table. For string tables, the key must be
* NULL-terminated, and the table will make an internal copy of the key.
* Inttables must not insert a value of UINTPTR_MAX.
*
* If a table resize was required but memory allocation failed, false is
* returned and the table is unchanged. */
bool upb_inttable_insert2(upb_inttable *t, uintptr_t key, upb_value val,
upb_alloc *a);
bool upb_strtable_insert3(upb_strtable *t, const char *key, size_t len,
upb_value val, upb_alloc *a);
UPB_INLINE bool upb_inttable_insert(upb_inttable *t, uintptr_t key,
upb_value val) {
return upb_inttable_insert2(t, key, val, &upb_alloc_global);
}
UPB_INLINE bool upb_strtable_insert2(upb_strtable *t, const char *key,
size_t len, upb_value val) {
return upb_strtable_insert3(t, key, len, val, &upb_alloc_global);
}
/* For NULL-terminated strings. */
UPB_INLINE bool upb_strtable_insert(upb_strtable *t, const char *key,
upb_value val) {
return upb_strtable_insert2(t, key, strlen(key), val);
}
/* Looks up key in this table, returning "true" if the key was found.
* If v is non-NULL, copies the value for this key into *v. */
bool upb_inttable_lookup(const upb_inttable *t, uintptr_t key, upb_value *v);
bool upb_strtable_lookup2(const upb_strtable *t, const char *key, size_t len,
upb_value *v);
/* For NULL-terminated strings. */
UPB_INLINE bool upb_strtable_lookup(const upb_strtable *t, const char *key,
upb_value *v) {
return upb_strtable_lookup2(t, key, strlen(key), v);
}
/* Removes an item from the table. Returns true if the remove was successful,
* and stores the removed item in *val if non-NULL. */
bool upb_inttable_remove(upb_inttable *t, uintptr_t key, upb_value *val);
bool upb_strtable_remove3(upb_strtable *t, const char *key, size_t len,
upb_value *val, upb_alloc *alloc);
UPB_INLINE bool upb_strtable_remove2(upb_strtable *t, const char *key,
size_t len, upb_value *val) {
return upb_strtable_remove3(t, key, len, val, &upb_alloc_global);
}
/* For NULL-terminated strings. */
UPB_INLINE bool upb_strtable_remove(upb_strtable *t, const char *key,
upb_value *v) {
return upb_strtable_remove2(t, key, strlen(key), v);
}
/* Updates an existing entry in an inttable. If the entry does not exist,
* returns false and does nothing. Unlike insert/remove, this does not
* invalidate iterators. */
bool upb_inttable_replace(upb_inttable *t, uintptr_t key, upb_value val);
/* Handy routines for treating an inttable like a stack. May not be mixed with
* other insert/remove calls. */
bool upb_inttable_push2(upb_inttable *t, upb_value val, upb_alloc *a);
upb_value upb_inttable_pop(upb_inttable *t);
UPB_INLINE bool upb_inttable_push(upb_inttable *t, upb_value val) {
return upb_inttable_push2(t, val, &upb_alloc_global);
}
/* Convenience routines for inttables with pointer keys. */
bool upb_inttable_insertptr2(upb_inttable *t, const void *key, upb_value val,
upb_alloc *a);
bool upb_inttable_removeptr(upb_inttable *t, const void *key, upb_value *val);
bool upb_inttable_lookupptr(
const upb_inttable *t, const void *key, upb_value *val);
UPB_INLINE bool upb_inttable_insertptr(upb_inttable *t, const void *key,
upb_value val) {
return upb_inttable_insertptr2(t, key, val, &upb_alloc_global);
}
/* Optimizes the table for the current set of entries, for both memory use and
* lookup time. Client should call this after all entries have been inserted;
* inserting more entries is legal, but will likely require a table resize. */
void upb_inttable_compact2(upb_inttable *t, upb_alloc *a);
UPB_INLINE void upb_inttable_compact(upb_inttable *t) {
upb_inttable_compact2(t, &upb_alloc_global);
}
/* A special-case inlinable version of the lookup routine for 32-bit
* integers. */
UPB_INLINE bool upb_inttable_lookup32(const upb_inttable *t, uint32_t key,
upb_value *v) {
*v = upb_value_int32(0); /* Silence compiler warnings. */
if (key < t->array_size) {
upb_tabval arrval = t->array[key];
if (upb_arrhas(arrval)) {
_upb_value_setval(v, arrval.val, t->t.ctype);
return true;
} else {
return false;
}
} else {
const upb_tabent *e;
if (t->t.entries == NULL) return false;
for (e = upb_getentry(&t->t, upb_inthash(key)); true; e = e->next) {
if ((uint32_t)e->key == key) {
_upb_value_setval(v, e->val.val, t->t.ctype);
return true;
}
if (e->next == NULL) return false;
}
}
}
/* Exposed for testing only. */
bool upb_strtable_resize(upb_strtable *t, size_t size_lg2, upb_alloc *a);
/* Iterators ******************************************************************/
/* Iterators for int and string tables. We are subject to some kind of unusual
* design constraints:
*
* For high-level languages:
* - we must be able to guarantee that we don't crash or corrupt memory even if
* the program accesses an invalidated iterator.
*
* For C++11 range-based for:
* - iterators must be copyable
* - iterators must be comparable
* - it must be possible to construct an "end" value.
*
* Iteration order is undefined.
*
* Modifying the table invalidates iterators. upb_{str,int}table_done() is
* guaranteed to work even on an invalidated iterator, as long as the table it
* is iterating over has not been freed. Calling next() or accessing data from
* an invalidated iterator yields unspecified elements from the table, but it is
* guaranteed not to crash and to return real table elements (except when done()
* is true). */
/* upb_strtable_iter **********************************************************/
/* upb_strtable_iter i;
* upb_strtable_begin(&i, t);
* for(; !upb_strtable_done(&i); upb_strtable_next(&i)) {
* const char *key = upb_strtable_iter_key(&i);
* const upb_value val = upb_strtable_iter_value(&i);
* // ...
* }
*/
typedef struct {
const upb_strtable *t;
size_t index;
} upb_strtable_iter;
void upb_strtable_begin(upb_strtable_iter *i, const upb_strtable *t);
void upb_strtable_next(upb_strtable_iter *i);
bool upb_strtable_done(const upb_strtable_iter *i);
const char *upb_strtable_iter_key(const upb_strtable_iter *i);
size_t upb_strtable_iter_keylength(const upb_strtable_iter *i);
upb_value upb_strtable_iter_value(const upb_strtable_iter *i);
void upb_strtable_iter_setdone(upb_strtable_iter *i);
bool upb_strtable_iter_isequal(const upb_strtable_iter *i1,
const upb_strtable_iter *i2);
/* upb_inttable_iter **********************************************************/
/* upb_inttable_iter i;
* upb_inttable_begin(&i, t);
* for(; !upb_inttable_done(&i); upb_inttable_next(&i)) {
* uintptr_t key = upb_inttable_iter_key(&i);
* upb_value val = upb_inttable_iter_value(&i);
* // ...
* }
*/
typedef struct {
const upb_inttable *t;
size_t index;
bool array_part;
} upb_inttable_iter;
void upb_inttable_begin(upb_inttable_iter *i, const upb_inttable *t);
void upb_inttable_next(upb_inttable_iter *i);
bool upb_inttable_done(const upb_inttable_iter *i);
uintptr_t upb_inttable_iter_key(const upb_inttable_iter *i);
upb_value upb_inttable_iter_value(const upb_inttable_iter *i);
void upb_inttable_iter_setdone(upb_inttable_iter *i);
bool upb_inttable_iter_isequal(const upb_inttable_iter *i1,
const upb_inttable_iter *i2);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* UPB_TABLE_H_ */
/* Reference tracking will check ref()/unref() operations to make sure the
* ref ownership is correct. Where possible it will also make tools like
* Valgrind attribute ref leaks to the code that took the leaked ref, not
* the code that originally created the object.
*
* Enabling this requires the application to define upb_lock()/upb_unlock()
* functions that acquire/release a global mutex (or #define UPB_THREAD_UNSAFE).
* For this reason we don't enable it by default, even in debug builds.
*/
/* #define UPB_DEBUG_REFS */
#ifdef __cplusplus
namespace upb {
class RefCounted;
template <class T> class reffed_ptr;
}
#endif
UPB_DECLARE_TYPE(upb::RefCounted, upb_refcounted)
struct upb_refcounted_vtbl;
#ifdef __cplusplus
class upb::RefCounted {
public:
/* Returns true if the given object is frozen. */
bool IsFrozen() const;
/* Increases the ref count, the new ref is owned by "owner" which must not
* already own a ref (and should not itself be a refcounted object if the ref
* could possibly be circular; see below).
* Thread-safe iff "this" is frozen. */
void Ref(const void *owner) const;
/* Release a ref that was acquired from upb_refcounted_ref() and collects any
* objects it can. */
void Unref(const void *owner) const;
/* Moves an existing ref from "from" to "to", without changing the overall
* ref count. DonateRef(foo, NULL, owner) is the same as Ref(foo, owner),
* but "to" may not be NULL. */
void DonateRef(const void *from, const void *to) const;
/* Verifies that a ref to the given object is currently held by the given
* owner. Only effective in UPB_DEBUG_REFS builds. */
void CheckRef(const void *owner) const;
private:
UPB_DISALLOW_POD_OPS(RefCounted, upb::RefCounted)
#else
struct upb_refcounted {
#endif
/* TODO(haberman): move the actual structure definition to structdefs.int.h.
* The only reason they are here is because inline functions need to see the
* definition of upb_handlers, which needs to see this definition. But we
* can change the upb_handlers inline functions to deal in raw offsets
* instead.
*/
/* A single reference count shared by all objects in the group. */
uint32_t *group;
/* A singly-linked list of all objects in the group. */
upb_refcounted *next;
/* Table of function pointers for this type. */
const struct upb_refcounted_vtbl *vtbl;
/* Maintained only when mutable, this tracks the number of refs (but not
* ref2's) to this object. *group should be the sum of all individual_count
* in the group. */
uint32_t individual_count;
bool is_frozen;
#ifdef UPB_DEBUG_REFS
upb_inttable *refs; /* Maps owner -> trackedref for incoming refs. */
upb_inttable *ref2s; /* Set of targets for outgoing ref2s. */
#endif
};
#ifdef UPB_DEBUG_REFS
extern upb_alloc upb_alloc_debugrefs;
#define UPB_REFCOUNT_INIT(vtbl, refs, ref2s) \
{&static_refcount, NULL, vtbl, 0, true, refs, ref2s}
#else
#define UPB_REFCOUNT_INIT(vtbl, refs, ref2s) \
{&static_refcount, NULL, vtbl, 0, true}
#endif
UPB_BEGIN_EXTERN_C
/* It is better to use tracked refs when possible, for the extra debugging
* capability. But if this is not possible (because you don't have easy access
* to a stable pointer value that is associated with the ref), you can pass
* UPB_UNTRACKED_REF instead. */
extern const void *UPB_UNTRACKED_REF;
/* Native C API. */
bool upb_refcounted_isfrozen(const upb_refcounted *r);
void upb_refcounted_ref(const upb_refcounted *r, const void *owner);
void upb_refcounted_unref(const upb_refcounted *r, const void *owner);
void upb_refcounted_donateref(
const upb_refcounted *r, const void *from, const void *to);
void upb_refcounted_checkref(const upb_refcounted *r, const void *owner);
#define UPB_REFCOUNTED_CMETHODS(type, upcastfunc) \
UPB_INLINE bool type ## _isfrozen(const type *v) { \
return upb_refcounted_isfrozen(upcastfunc(v)); \
} \
UPB_INLINE void type ## _ref(const type *v, const void *owner) { \
upb_refcounted_ref(upcastfunc(v), owner); \
} \
UPB_INLINE void type ## _unref(const type *v, const void *owner) { \
upb_refcounted_unref(upcastfunc(v), owner); \
} \
UPB_INLINE void type ## _donateref(const type *v, const void *from, const void *to) { \
upb_refcounted_donateref(upcastfunc(v), from, to); \
} \
UPB_INLINE void type ## _checkref(const type *v, const void *owner) { \
upb_refcounted_checkref(upcastfunc(v), owner); \
}
#define UPB_REFCOUNTED_CPPMETHODS \
bool IsFrozen() const { \
return upb::upcast_to<const upb::RefCounted>(this)->IsFrozen(); \
} \
void Ref(const void *owner) const { \
return upb::upcast_to<const upb::RefCounted>(this)->Ref(owner); \
} \
void Unref(const void *owner) const { \
return upb::upcast_to<const upb::RefCounted>(this)->Unref(owner); \
} \
void DonateRef(const void *from, const void *to) const { \
return upb::upcast_to<const upb::RefCounted>(this)->DonateRef(from, to); \
} \
void CheckRef(const void *owner) const { \
return upb::upcast_to<const upb::RefCounted>(this)->CheckRef(owner); \
}
/* Internal-to-upb Interface **************************************************/
typedef void upb_refcounted_visit(const upb_refcounted *r,
const upb_refcounted *subobj,
void *closure);
struct upb_refcounted_vtbl {
/* Must visit all subobjects that are currently ref'd via upb_refcounted_ref2.
* Must be longjmp()-safe. */
void (*visit)(const upb_refcounted *r, upb_refcounted_visit *visit, void *c);
/* Must free the object and release all references to other objects. */
void (*free)(upb_refcounted *r);
};
/* Initializes the refcounted with a single ref for the given owner. Returns
* false if memory could not be allocated. */
bool upb_refcounted_init(upb_refcounted *r,
const struct upb_refcounted_vtbl *vtbl,
const void *owner);
/* Adds a ref from one refcounted object to another ("from" must not already
* own a ref). These refs may be circular; cycles will be collected correctly
* (if conservatively). These refs do not need to be freed in from's free()
* function. */
void upb_refcounted_ref2(const upb_refcounted *r, upb_refcounted *from);
/* Removes a ref that was acquired from upb_refcounted_ref2(), and collects any
* object it can. This is only necessary when "from" no longer points to "r",
* and not from from's "free" function. */
void upb_refcounted_unref2(const upb_refcounted *r, upb_refcounted *from);
#define upb_ref2(r, from) \
upb_refcounted_ref2((const upb_refcounted*)r, (upb_refcounted*)from)
#define upb_unref2(r, from) \
upb_refcounted_unref2((const upb_refcounted*)r, (upb_refcounted*)from)
/* Freezes all mutable object reachable by ref2() refs from the given roots.
* This will split refcounting groups into precise SCC groups, so that
* refcounting of frozen objects can be more aggressive. If memory allocation
* fails, or if more than 2**31 mutable objects are reachable from "roots", or
* if the maximum depth of the graph exceeds "maxdepth", false is returned and
* the objects are unchanged.
*
* After this operation succeeds, the objects are frozen/const, and may not be
* used through non-const pointers. In particular, they may not be passed as
* the second parameter of upb_refcounted_{ref,unref}2(). On the upside, all
* operations on frozen refcounteds are threadsafe, and objects will be freed
* at the precise moment that they become unreachable.
*
* Caller must own refs on each object in the "roots" list. */
bool upb_refcounted_freeze(upb_refcounted *const*roots, int n, upb_status *s,
int maxdepth);
/* Shared by all compiled-in refcounted objects. */
extern uint32_t static_refcount;
UPB_END_EXTERN_C
#ifdef __cplusplus
/* C++ Wrappers. */
namespace upb {
inline bool RefCounted::IsFrozen() const {
return upb_refcounted_isfrozen(this);
}
inline void RefCounted::Ref(const void *owner) const {
upb_refcounted_ref(this, owner);
}
inline void RefCounted::Unref(const void *owner) const {
upb_refcounted_unref(this, owner);
}
inline void RefCounted::DonateRef(const void *from, const void *to) const {
upb_refcounted_donateref(this, from, to);
}
inline void RefCounted::CheckRef(const void *owner) const {
upb_refcounted_checkref(this, owner);
}
} /* namespace upb */
#endif
/* upb::reffed_ptr ************************************************************/
#ifdef __cplusplus
#include <algorithm> /* For std::swap(). */
/* Provides RAII semantics for upb refcounted objects. Each reffed_ptr owns a
* ref on whatever object it points to (if any). */
template <class T> class upb::reffed_ptr {
public:
reffed_ptr() : ptr_(NULL) {}
/* If ref_donor is NULL, takes a new ref, otherwise adopts from ref_donor. */
template <class U>
reffed_ptr(U* val, const void* ref_donor = NULL)
: ptr_(upb::upcast(val)) {
if (ref_donor) {
UPB_ASSERT(ptr_);
ptr_->DonateRef(ref_donor, this);
} else if (ptr_) {
ptr_->Ref(this);
}
}
template <class U>
reffed_ptr(const reffed_ptr<U>& other)
: ptr_(upb::upcast(other.get())) {
if (ptr_) ptr_->Ref(this);
}
reffed_ptr(const reffed_ptr& other)
: ptr_(upb::upcast(other.get())) {
if (ptr_) ptr_->Ref(this);
}
~reffed_ptr() { if (ptr_) ptr_->Unref(this); }
template <class U>
reffed_ptr& operator=(const reffed_ptr<U>& other) {
reset(other.get());
return *this;
}
reffed_ptr& operator=(const reffed_ptr& other) {
reset(other.get());
return *this;
}
/* TODO(haberman): add C++11 move construction/assignment for greater
* efficiency. */
void swap(reffed_ptr& other) {
if (ptr_ == other.ptr_) {
return;
}
if (ptr_) ptr_->DonateRef(this, &other);
if (other.ptr_) other.ptr_->DonateRef(&other, this);
std::swap(ptr_, other.ptr_);
}
T& operator*() const {
UPB_ASSERT(ptr_);
return *ptr_;
}
T* operator->() const {
UPB_ASSERT(ptr_);
return ptr_;
}
T* get() const { return ptr_; }
/* If ref_donor is NULL, takes a new ref, otherwise adopts from ref_donor. */
template <class U>
void reset(U* ptr = NULL, const void* ref_donor = NULL) {
reffed_ptr(ptr, ref_donor).swap(*this);
}
template <class U>
reffed_ptr<U> down_cast() {
return reffed_ptr<U>(upb::down_cast<U*>(get()));
}
template <class U>
reffed_ptr<U> dyn_cast() {
return reffed_ptr<U>(upb::dyn_cast<U*>(get()));
}
/* Plain release() is unsafe; if we were the only owner, it would leak the
* object. Instead we provide this: */
T* ReleaseTo(const void* new_owner) {
T* ret = NULL;
ptr_->DonateRef(this, new_owner);
std::swap(ret, ptr_);
return ret;
}
private:
T* ptr_;
};
#endif /* __cplusplus */
#endif /* UPB_REFCOUNT_H_ */
#ifdef __cplusplus
#include <cstring>
#include <string>
#include <vector>
namespace upb {
class Def;
class EnumDef;
class FieldDef;
class FileDef;
class MessageDef;
class OneofDef;
class SymbolTable;
}
#endif
UPB_DECLARE_DERIVED_TYPE(upb::Def, upb::RefCounted, upb_def, upb_refcounted)
UPB_DECLARE_DERIVED_TYPE(upb::OneofDef, upb::RefCounted, upb_oneofdef,
upb_refcounted)
UPB_DECLARE_DERIVED_TYPE(upb::FileDef, upb::RefCounted, upb_filedef,
upb_refcounted)
UPB_DECLARE_TYPE(upb::SymbolTable, upb_symtab)
/* The maximum message depth that the type graph can have. This is a resource
* limit for the C stack since we sometimes need to recursively traverse the
* graph. Cycles are ok; the traversal will stop when it detects a cycle, but
* we must hit the cycle before the maximum depth is reached.
*
* If having a single static limit is too inflexible, we can add another variant
* of Def::Freeze that allows specifying this as a parameter. */
#define UPB_MAX_MESSAGE_DEPTH 64
/* upb::Def: base class for top-level defs ***********************************/
/* All the different kind of defs that can be defined at the top-level and put
* in a SymbolTable or appear in a FileDef::defs() list. This excludes some
* defs (like oneofs and files). It only includes fields because they can be
* defined as extensions. */
typedef enum {
UPB_DEF_MSG,
UPB_DEF_FIELD,
UPB_DEF_ENUM,
UPB_DEF_SERVICE, /* Not yet implemented. */
UPB_DEF_ANY = -1 /* Wildcard for upb_symtab_get*() */
} upb_deftype_t;
#ifdef __cplusplus
/* The base class of all defs. Its base is upb::RefCounted (use upb::upcast()
* to convert). */
class upb::Def {
public:
typedef upb_deftype_t Type;
/* upb::RefCounted methods like Ref()/Unref(). */
UPB_REFCOUNTED_CPPMETHODS
Type def_type() const;
/* "fullname" is the def's fully-qualified name (eg. foo.bar.Message). */
const char *full_name() const;
/* The final part of a def's name (eg. Message). */
const char *name() const;
/* The def must be mutable. Caller retains ownership of fullname. Defs are
* not required to have a name; if a def has no name when it is frozen, it
* will remain an anonymous def. On failure, returns false and details in "s"
* if non-NULL. */
bool set_full_name(const char* fullname, upb::Status* s);
bool set_full_name(const std::string &fullname, upb::Status* s);
/* The file in which this def appears. It is not necessary to add a def to a
* file (and consequently the accessor may return NULL). Set this by calling
* file->Add(def). */
FileDef* file() const;
/* Freezes the given defs; this validates all constraints and marks the defs
* as frozen (read-only). "defs" may not contain any fielddefs, but fields
* of any msgdefs will be frozen.
*
* Symbolic references to sub-types and enum defaults must have already been
* resolved. Any mutable defs reachable from any of "defs" must also be in
* the list; more formally, "defs" must be a transitive closure of mutable
* defs.
*
* After this operation succeeds, the finalized defs must only be accessed
* through a const pointer! */
static bool Freeze(Def* const* defs, size_t n, Status* status);
static bool Freeze(const std::vector<Def*>& defs, Status* status);
private:
UPB_DISALLOW_POD_OPS(Def, upb::Def)
};
#endif /* __cplusplus */
UPB_BEGIN_EXTERN_C
/* Include upb_refcounted methods like upb_def_ref()/upb_def_unref(). */
UPB_REFCOUNTED_CMETHODS(upb_def, upb_def_upcast)
upb_deftype_t upb_def_type(const upb_def *d);
const char *upb_def_fullname(const upb_def *d);
const char *upb_def_name(const upb_def *d);
const upb_filedef *upb_def_file(const upb_def *d);
bool upb_def_setfullname(upb_def *def, const char *fullname, upb_status *s);
bool upb_def_freeze(upb_def *const *defs, size_t n, upb_status *s);
/* Temporary API: for internal use only. */
bool _upb_def_validate(upb_def *const*defs, size_t n, upb_status *s);
UPB_END_EXTERN_C
/* upb::Def casts *************************************************************/
#ifdef __cplusplus
#define UPB_CPP_CASTS(cname, cpptype) \
namespace upb { \
template <> \
inline cpptype *down_cast<cpptype *, Def>(Def * def) { \
return upb_downcast_##cname##_mutable(def); \
} \
template <> \
inline cpptype *dyn_cast<cpptype *, Def>(Def * def) { \
return upb_dyncast_##cname##_mutable(def); \
} \
template <> \
inline const cpptype *down_cast<const cpptype *, const Def>( \
const Def *def) { \
return upb_downcast_##cname(def); \
} \
template <> \
inline const cpptype *dyn_cast<const cpptype *, const Def>(const Def *def) { \
return upb_dyncast_##cname(def); \
} \
template <> \
inline const cpptype *down_cast<const cpptype *, Def>(Def * def) { \
return upb_downcast_##cname(def); \
} \
template <> \
inline const cpptype *dyn_cast<const cpptype *, Def>(Def * def) { \
return upb_dyncast_##cname(def); \
} \
} /* namespace upb */
#else
#define UPB_CPP_CASTS(cname, cpptype)
#endif /* __cplusplus */
/* Dynamic casts, for determining if a def is of a particular type at runtime.
* Downcasts, for when some wants to assert that a def is of a particular type.
* These are only checked if we are building debug. */
#define UPB_DEF_CASTS(lower, upper, cpptype) \
UPB_INLINE const upb_##lower *upb_dyncast_##lower(const upb_def *def) { \
if (upb_def_type(def) != UPB_DEF_##upper) return NULL; \
return (upb_##lower *)def; \
} \
UPB_INLINE const upb_##lower *upb_downcast_##lower(const upb_def *def) { \
UPB_ASSERT(upb_def_type(def) == UPB_DEF_##upper); \
return (const upb_##lower *)def; \
} \
UPB_INLINE upb_##lower *upb_dyncast_##lower##_mutable(upb_def *def) { \
return (upb_##lower *)upb_dyncast_##lower(def); \
} \
UPB_INLINE upb_##lower *upb_downcast_##lower##_mutable(upb_def *def) { \
return (upb_##lower *)upb_downcast_##lower(def); \
} \
UPB_CPP_CASTS(lower, cpptype)
#define UPB_DEFINE_DEF(cppname, lower, upper, cppmethods, members) \
UPB_DEFINE_CLASS2(cppname, upb::Def, upb::RefCounted, cppmethods, \
members) \
UPB_DEF_CASTS(lower, upper, cppname)
#define UPB_DECLARE_DEF_TYPE(cppname, lower, upper) \
UPB_DECLARE_DERIVED_TYPE2(cppname, upb::Def, upb::RefCounted, \
upb_ ## lower, upb_def, upb_refcounted) \
UPB_DEF_CASTS(lower, upper, cppname)
UPB_DECLARE_DEF_TYPE(upb::FieldDef, fielddef, FIELD)
UPB_DECLARE_DEF_TYPE(upb::MessageDef, msgdef, MSG)
UPB_DECLARE_DEF_TYPE(upb::EnumDef, enumdef, ENUM)
#undef UPB_DECLARE_DEF_TYPE
#undef UPB_DEF_CASTS
#undef UPB_CPP_CASTS
/* upb::FieldDef **************************************************************/
/* The types a field can have. Note that this list is not identical to the
* types defined in descriptor.proto, which gives INT32 and SINT32 separate
* types (we distinguish the two with the "integer encoding" enum below). */
typedef enum {
/* Types stored in 1 byte. */
UPB_TYPE_BOOL = 1,
/* Types stored in 4 bytes. */
UPB_TYPE_FLOAT = 2,
UPB_TYPE_INT32 = 3,
UPB_TYPE_UINT32 = 4,
UPB_TYPE_ENUM = 5, /* Enum values are int32. */
/* Types stored as pointers (probably 4 or 8 bytes). */
UPB_TYPE_STRING = 6,
UPB_TYPE_BYTES = 7,
UPB_TYPE_MESSAGE = 8,
/* Types stored as 8 bytes. */
UPB_TYPE_DOUBLE = 9,
UPB_TYPE_INT64 = 10,
UPB_TYPE_UINT64 = 11
} upb_fieldtype_t;
/* The repeated-ness of each field; this matches descriptor.proto. */
typedef enum {
UPB_LABEL_OPTIONAL = 1,
UPB_LABEL_REQUIRED = 2,
UPB_LABEL_REPEATED = 3
} upb_label_t;
/* How integers should be encoded in serializations that offer multiple
* integer encoding methods. */
typedef enum {
UPB_INTFMT_VARIABLE = 1,
UPB_INTFMT_FIXED = 2,
UPB_INTFMT_ZIGZAG = 3 /* Only for signed types (INT32/INT64). */
} upb_intfmt_t;
/* Descriptor types, as defined in descriptor.proto. */
typedef enum {
UPB_DESCRIPTOR_TYPE_DOUBLE = 1,
UPB_DESCRIPTOR_TYPE_FLOAT = 2,
UPB_DESCRIPTOR_TYPE_INT64 = 3,
UPB_DESCRIPTOR_TYPE_UINT64 = 4,
UPB_DESCRIPTOR_TYPE_INT32 = 5,
UPB_DESCRIPTOR_TYPE_FIXED64 = 6,
UPB_DESCRIPTOR_TYPE_FIXED32 = 7,
UPB_DESCRIPTOR_TYPE_BOOL = 8,
UPB_DESCRIPTOR_TYPE_STRING = 9,
UPB_DESCRIPTOR_TYPE_GROUP = 10,
UPB_DESCRIPTOR_TYPE_MESSAGE = 11,
UPB_DESCRIPTOR_TYPE_BYTES = 12,
UPB_DESCRIPTOR_TYPE_UINT32 = 13,
UPB_DESCRIPTOR_TYPE_ENUM = 14,
UPB_DESCRIPTOR_TYPE_SFIXED32 = 15,
UPB_DESCRIPTOR_TYPE_SFIXED64 = 16,
UPB_DESCRIPTOR_TYPE_SINT32 = 17,
UPB_DESCRIPTOR_TYPE_SINT64 = 18
} upb_descriptortype_t;
typedef enum {
UPB_SYNTAX_PROTO2 = 2,
UPB_SYNTAX_PROTO3 = 3
} upb_syntax_t;
/* Maximum field number allowed for FieldDefs. This is an inherent limit of the
* protobuf wire format. */
#define UPB_MAX_FIELDNUMBER ((1 << 29) - 1)
#ifdef __cplusplus
/* A upb_fielddef describes a single field in a message. It is most often
* found as a part of a upb_msgdef, but can also stand alone to represent
* an extension.
*
* Its base class is upb::Def (use upb::upcast() to convert). */
class upb::FieldDef {
public:
typedef upb_fieldtype_t Type;
typedef upb_label_t Label;
typedef upb_intfmt_t IntegerFormat;
typedef upb_descriptortype_t DescriptorType;
/* These return true if the given value is a valid member of the enumeration. */
static bool CheckType(int32_t val);
static bool CheckLabel(int32_t val);
static bool CheckDescriptorType(int32_t val);
static bool CheckIntegerFormat(int32_t val);
/* These convert to the given enumeration; they require that the value is
* valid. */
static Type ConvertType(int32_t val);
static Label ConvertLabel(int32_t val);
static DescriptorType ConvertDescriptorType(int32_t val);
static IntegerFormat ConvertIntegerFormat(int32_t val);
/* Returns NULL if memory allocation failed. */
static reffed_ptr<FieldDef> New();
/* upb::RefCounted methods like Ref()/Unref(). */
UPB_REFCOUNTED_CPPMETHODS
/* Functionality from upb::Def. */
const char* full_name() const;
bool type_is_set() const; /* set_[descriptor_]type() has been called? */
Type type() const; /* Requires that type_is_set() == true. */
Label label() const; /* Defaults to UPB_LABEL_OPTIONAL. */
const char* name() const; /* NULL if uninitialized. */
uint32_t number() const; /* Returns 0 if uninitialized. */
bool is_extension() const;
/* Copies the JSON name for this field into the given buffer. Returns the
* actual size of the JSON name, including the NULL terminator. If the
* return value is 0, the JSON name is unset. If the return value is
* greater than len, the JSON name was truncated. The buffer is always
* NULL-terminated if len > 0.
*
* The JSON name always defaults to a camelCased version of the regular
* name. However if the regular name is unset, the JSON name will be unset
* also.
*/
size_t GetJsonName(char* buf, size_t len) const;
/* Convenience version of the above function which copies the JSON name
* into the given string, returning false if the name is not set. */
template <class T>
bool GetJsonName(T* str) {
str->resize(GetJsonName(NULL, 0));
GetJsonName(&(*str)[0], str->size());
return str->size() > 0;
}
/* For UPB_TYPE_MESSAGE fields only where is_tag_delimited() == false,
* indicates whether this field should have lazy parsing handlers that yield
* the unparsed string for the submessage.
*
* TODO(haberman): I think we want to move this into a FieldOptions container
* when we add support for custom options (the FieldOptions struct will
* contain both regular FieldOptions like "lazy" *and* custom options). */
bool lazy() const;
/* For non-string, non-submessage fields, this indicates whether binary
* protobufs are encoded in packed or non-packed format.
*
* TODO(haberman): see note above about putting options like this into a
* FieldOptions container. */
bool packed() const;
/* An integer that can be used as an index into an array of fields for
* whatever message this field belongs to. Guaranteed to be less than
* f->containing_type()->field_count(). May only be accessed once the def has
* been finalized. */
uint32_t index() const;
/* The MessageDef to which this field belongs.
*
* If this field has been added to a MessageDef, that message can be retrieved
* directly (this is always the case for frozen FieldDefs).
*
* If the field has not yet been added to a MessageDef, you can set the name
* of the containing type symbolically instead. This is mostly useful for
* extensions, where the extension is declared separately from the message. */
const MessageDef* containing_type() const;
const char* containing_type_name();
/* The OneofDef to which this field belongs, or NULL if this field is not part
* of a oneof. */
const OneofDef* containing_oneof() const;
/* The field's type according to the enum in descriptor.proto. This is not
* the same as UPB_TYPE_*, because it distinguishes between (for example)
* INT32 and SINT32, whereas our "type" enum does not. This return of
* descriptor_type() is a function of type(), integer_format(), and
* is_tag_delimited(). Likewise set_descriptor_type() sets all three
* appropriately. */
DescriptorType descriptor_type() const;
/* Convenient field type tests. */
bool IsSubMessage() const;
bool IsString() const;
bool IsSequence() const;
bool IsPrimitive() const;
bool IsMap() const;
/* Returns whether this field explicitly represents presence.
*
* For proto2 messages: Returns true for any scalar (non-repeated) field.
* For proto3 messages: Returns true for scalar submessage or oneof fields. */
bool HasPresence() const;
/* How integers are encoded. Only meaningful for integer types.
* Defaults to UPB_INTFMT_VARIABLE, and is reset when "type" changes. */
IntegerFormat integer_format() const;
/* Whether a submessage field is tag-delimited or not (if false, then
* length-delimited). May only be set when type() == UPB_TYPE_MESSAGE. */
bool is_tag_delimited() const;
/* Returns the non-string default value for this fielddef, which may either
* be something the client set explicitly or the "default default" (0 for
* numbers, empty for strings). The field's type indicates the type of the
* returned value, except for enum fields that are still mutable.
*
* Requires that the given function matches the field's current type. */
int64_t default_int64() const;
int32_t default_int32() const;
uint64_t default_uint64() const;
uint32_t default_uint32() const;
bool default_bool() const;
float default_float() const;
double default_double() const;
/* The resulting string is always NULL-terminated. If non-NULL, the length
* will be stored in *len. */
const char *default_string(size_t* len) const;
/* For frozen UPB_TYPE_ENUM fields, enum defaults can always be read as either
* string or int32, and both of these methods will always return true.
*
* For mutable UPB_TYPE_ENUM fields, the story is a bit more complicated.
* Enum defaults are unusual. They can be specified either as string or int32,
* but to be valid the enum must have that value as a member. And if no
* default is specified, the "default default" comes from the EnumDef.
*
* We allow reading the default as either an int32 or a string, but only if
* we have a meaningful value to report. We have a meaningful value if it was
* set explicitly, or if we could get the "default default" from the EnumDef.
* Also if you explicitly set the name and we find the number in the EnumDef */
bool EnumHasStringDefault() const;
bool EnumHasInt32Default() const;
/* Submessage and enum fields must reference a "subdef", which is the
* upb::MessageDef or upb::EnumDef that defines their type. Note that when
* the FieldDef is mutable it may not have a subdef *yet*, but this function
* still returns true to indicate that the field's type requires a subdef. */
bool HasSubDef() const;
/* Returns the enum or submessage def for this field, if any. The field's
* type must match (ie. you may only call enum_subdef() for fields where
* type() == UPB_TYPE_ENUM). Returns NULL if the subdef has not been set or
* is currently set symbolically. */
const EnumDef* enum_subdef() const;
const MessageDef* message_subdef() const;
/* Returns the generic subdef for this field. Requires that HasSubDef() (ie.
* only works for UPB_TYPE_ENUM and UPB_TYPE_MESSAGE fields). */
const Def* subdef() const;
/* Returns the symbolic name of the subdef. If the subdef is currently set
* unresolved (ie. set symbolically) returns the symbolic name. If it has
* been resolved to a specific subdef, returns the name from that subdef. */
const char* subdef_name() const;
/* Setters (non-const methods), only valid for mutable FieldDefs! ***********/
bool set_full_name(const char* fullname, upb::Status* s);
bool set_full_name(const std::string& fullname, upb::Status* s);
/* This may only be called if containing_type() == NULL (ie. the field has not
* been added to a message yet). */
bool set_containing_type_name(const char *name, Status* status);
bool set_containing_type_name(const std::string& name, Status* status);
/* Defaults to false. When we freeze, we ensure that this can only be true
* for length-delimited message fields. Prior to freezing this can be true or
* false with no restrictions. */
void set_lazy(bool lazy);
/* Defaults to true. Sets whether this field is encoded in packed format. */
void set_packed(bool packed);
/* "type" or "descriptor_type" MUST be set explicitly before the fielddef is
* finalized. These setters require that the enum value is valid; if the
* value did not come directly from an enum constant, the caller should
* validate it first with the functions above (CheckFieldType(), etc). */
void set_type(Type type);
void set_label(Label label);
void set_descriptor_type(DescriptorType type);
void set_is_extension(bool is_extension);
/* "number" and "name" must be set before the FieldDef is added to a
* MessageDef, and may not be set after that.
*
* "name" is the same as full_name()/set_full_name(), but since fielddefs
* most often use simple, non-qualified names, we provide this accessor
* also. Generally only extensions will want to think of this name as
* fully-qualified. */
bool set_number(uint32_t number, upb::Status* s);
bool set_name(const char* name, upb::Status* s);
bool set_name(const std::string& name, upb::Status* s);
/* Sets the JSON name to the given string. */
/* TODO(haberman): implement. Right now only default json_name (camelCase)
* is supported. */
bool set_json_name(const char* json_name, upb::Status* s);
bool set_json_name(const std::string& name, upb::Status* s);
/* Clears the JSON name. This will make it revert to its default, which is
* a camelCased version of the regular field name. */
void clear_json_name();
void set_integer_format(IntegerFormat format);
bool set_tag_delimited(bool tag_delimited, upb::Status* s);
/* Sets default value for the field. The call must exactly match the type
* of the field. Enum fields may use either setint32 or setstring to set
* the default numerically or symbolically, respectively, but symbolic
* defaults must be resolved before finalizing (see ResolveEnumDefault()).
*
* Changing the type of a field will reset its default. */
void set_default_int64(int64_t val);
void set_default_int32(int32_t val);
void set_default_uint64(uint64_t val);
void set_default_uint32(uint32_t val);
void set_default_bool(bool val);
void set_default_float(float val);
void set_default_double(double val);
bool set_default_string(const void *str, size_t len, Status *s);
bool set_default_string(const std::string &str, Status *s);
void set_default_cstr(const char *str, Status *s);
/* Before a fielddef is frozen, its subdef may be set either directly (with a
* upb::Def*) or symbolically. Symbolic refs must be resolved before the
* containing msgdef can be frozen (see upb_resolve() above). upb always
* guarantees that any def reachable from a live def will also be kept alive.
*
* Both methods require that upb_hassubdef(f) (so the type must be set prior
* to calling these methods). Returns false if this is not the case, or if
* the given subdef is not of the correct type. The subdef is reset if the
* field's type is changed. The subdef can be set to NULL to clear it. */
bool set_subdef(const Def* subdef, Status* s);
bool set_enum_subdef(const EnumDef* subdef, Status* s);
bool set_message_subdef(const MessageDef* subdef, Status* s);
bool set_subdef_name(const char* name, Status* s);
bool set_subdef_name(const std::string &name, Status* s);
private:
UPB_DISALLOW_POD_OPS(FieldDef, upb::FieldDef)
};
# endif /* defined(__cplusplus) */
UPB_BEGIN_EXTERN_C
/* Native C API. */
upb_fielddef *upb_fielddef_new(const void *owner);
/* Include upb_refcounted methods like upb_fielddef_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_fielddef, upb_fielddef_upcast2)
/* Methods from upb_def. */
const char *upb_fielddef_fullname(const upb_fielddef *f);
bool upb_fielddef_setfullname(upb_fielddef *f, const char *fullname,
upb_status *s);
bool upb_fielddef_typeisset(const upb_fielddef *f);
upb_fieldtype_t upb_fielddef_type(const upb_fielddef *f);
upb_descriptortype_t upb_fielddef_descriptortype(const upb_fielddef *f);
upb_label_t upb_fielddef_label(const upb_fielddef *f);
uint32_t upb_fielddef_number(const upb_fielddef *f);
const char *upb_fielddef_name(const upb_fielddef *f);
bool upb_fielddef_isextension(const upb_fielddef *f);
bool upb_fielddef_lazy(const upb_fielddef *f);
bool upb_fielddef_packed(const upb_fielddef *f);
size_t upb_fielddef_getjsonname(const upb_fielddef *f, char *buf, size_t len);
const upb_msgdef *upb_fielddef_containingtype(const upb_fielddef *f);
const upb_oneofdef *upb_fielddef_containingoneof(const upb_fielddef *f);
upb_msgdef *upb_fielddef_containingtype_mutable(upb_fielddef *f);
const char *upb_fielddef_containingtypename(upb_fielddef *f);
upb_intfmt_t upb_fielddef_intfmt(const upb_fielddef *f);
uint32_t upb_fielddef_index(const upb_fielddef *f);
bool upb_fielddef_istagdelim(const upb_fielddef *f);
bool upb_fielddef_issubmsg(const upb_fielddef *f);
bool upb_fielddef_isstring(const upb_fielddef *f);
bool upb_fielddef_isseq(const upb_fielddef *f);
bool upb_fielddef_isprimitive(const upb_fielddef *f);
bool upb_fielddef_ismap(const upb_fielddef *f);
bool upb_fielddef_haspresence(const upb_fielddef *f);
int64_t upb_fielddef_defaultint64(const upb_fielddef *f);
int32_t upb_fielddef_defaultint32(const upb_fielddef *f);
uint64_t upb_fielddef_defaultuint64(const upb_fielddef *f);
uint32_t upb_fielddef_defaultuint32(const upb_fielddef *f);
bool upb_fielddef_defaultbool(const upb_fielddef *f);
float upb_fielddef_defaultfloat(const upb_fielddef *f);
double upb_fielddef_defaultdouble(const upb_fielddef *f);
const char *upb_fielddef_defaultstr(const upb_fielddef *f, size_t *len);
bool upb_fielddef_enumhasdefaultint32(const upb_fielddef *f);
bool upb_fielddef_enumhasdefaultstr(const upb_fielddef *f);
bool upb_fielddef_hassubdef(const upb_fielddef *f);
const upb_def *upb_fielddef_subdef(const upb_fielddef *f);
const upb_msgdef *upb_fielddef_msgsubdef(const upb_fielddef *f);
const upb_enumdef *upb_fielddef_enumsubdef(const upb_fielddef *f);
const char *upb_fielddef_subdefname(const upb_fielddef *f);
void upb_fielddef_settype(upb_fielddef *f, upb_fieldtype_t type);
void upb_fielddef_setdescriptortype(upb_fielddef *f, int type);
void upb_fielddef_setlabel(upb_fielddef *f, upb_label_t label);
bool upb_fielddef_setnumber(upb_fielddef *f, uint32_t number, upb_status *s);
bool upb_fielddef_setname(upb_fielddef *f, const char *name, upb_status *s);
bool upb_fielddef_setjsonname(upb_fielddef *f, const char *name, upb_status *s);
bool upb_fielddef_clearjsonname(upb_fielddef *f);
bool upb_fielddef_setcontainingtypename(upb_fielddef *f, const char *name,
upb_status *s);
void upb_fielddef_setisextension(upb_fielddef *f, bool is_extension);
void upb_fielddef_setlazy(upb_fielddef *f, bool lazy);
void upb_fielddef_setpacked(upb_fielddef *f, bool packed);
void upb_fielddef_setintfmt(upb_fielddef *f, upb_intfmt_t fmt);
void upb_fielddef_settagdelim(upb_fielddef *f, bool tag_delim);
void upb_fielddef_setdefaultint64(upb_fielddef *f, int64_t val);
void upb_fielddef_setdefaultint32(upb_fielddef *f, int32_t val);
void upb_fielddef_setdefaultuint64(upb_fielddef *f, uint64_t val);
void upb_fielddef_setdefaultuint32(upb_fielddef *f, uint32_t val);
void upb_fielddef_setdefaultbool(upb_fielddef *f, bool val);
void upb_fielddef_setdefaultfloat(upb_fielddef *f, float val);
void upb_fielddef_setdefaultdouble(upb_fielddef *f, double val);
bool upb_fielddef_setdefaultstr(upb_fielddef *f, const void *str, size_t len,
upb_status *s);
void upb_fielddef_setdefaultcstr(upb_fielddef *f, const char *str,
upb_status *s);
bool upb_fielddef_setsubdef(upb_fielddef *f, const upb_def *subdef,
upb_status *s);
bool upb_fielddef_setmsgsubdef(upb_fielddef *f, const upb_msgdef *subdef,
upb_status *s);
bool upb_fielddef_setenumsubdef(upb_fielddef *f, const upb_enumdef *subdef,
upb_status *s);
bool upb_fielddef_setsubdefname(upb_fielddef *f, const char *name,
upb_status *s);
bool upb_fielddef_checklabel(int32_t label);
bool upb_fielddef_checktype(int32_t type);
bool upb_fielddef_checkdescriptortype(int32_t type);
bool upb_fielddef_checkintfmt(int32_t fmt);
UPB_END_EXTERN_C
/* upb::MessageDef ************************************************************/
typedef upb_inttable_iter upb_msg_field_iter;
typedef upb_strtable_iter upb_msg_oneof_iter;
/* Well-known field tag numbers for map-entry messages. */
#define UPB_MAPENTRY_KEY 1
#define UPB_MAPENTRY_VALUE 2
#ifdef __cplusplus
/* Structure that describes a single .proto message type.
*
* Its base class is upb::Def (use upb::upcast() to convert). */
class upb::MessageDef {
public:
/* Returns NULL if memory allocation failed. */
static reffed_ptr<MessageDef> New();
/* upb::RefCounted methods like Ref()/Unref(). */
UPB_REFCOUNTED_CPPMETHODS
/* Functionality from upb::Def. */
const char* full_name() const;
const char* name() const;
bool set_full_name(const char* fullname, Status* s);
bool set_full_name(const std::string& fullname, Status* s);
/* Call to freeze this MessageDef.
* WARNING: this will fail if this message has any unfrozen submessages!
* Messages with cycles must be frozen as a batch using upb::Def::Freeze(). */
bool Freeze(Status* s);
/* The number of fields that belong to the MessageDef. */
int field_count() const;
/* The number of oneofs that belong to the MessageDef. */
int oneof_count() const;
/* Adds a field (upb_fielddef object) to a msgdef. Requires that the msgdef
* and the fielddefs are mutable. The fielddef's name and number must be
* set, and the message may not already contain any field with this name or
* number, and this fielddef may not be part of another message. In error
* cases false is returned and the msgdef is unchanged.
*
* If the given field is part of a oneof, this call succeeds if and only if
* that oneof is already part of this msgdef. (Note that adding a oneof to a
* msgdef automatically adds all of its fields to the msgdef at the time that
* the oneof is added, so it is usually more idiomatic to add the oneof's
* fields first then add the oneof to the msgdef. This case is supported for
* convenience.)
*
* If |f| is already part of this MessageDef, this method performs no action
* and returns true (success). Thus, this method is idempotent. */
bool AddField(FieldDef* f, Status* s);
bool AddField(const reffed_ptr<FieldDef>& f, Status* s);
/* Adds a oneof (upb_oneofdef object) to a msgdef. Requires that the msgdef,
* oneof, and any fielddefs are mutable, that the fielddefs contained in the
* oneof do not have any name or number conflicts with existing fields in the
* msgdef, and that the oneof's name is unique among all oneofs in the msgdef.
* If the oneof is added successfully, all of its fields will be added
* directly to the msgdef as well. In error cases, false is returned and the
* msgdef is unchanged. */
bool AddOneof(OneofDef* o, Status* s);
bool AddOneof(const reffed_ptr<OneofDef>& o, Status* s);
upb_syntax_t syntax() const;
/* Returns false if we don't support this syntax value. */
bool set_syntax(upb_syntax_t syntax);
/* Set this to false to indicate that primitive fields should not have
* explicit presence information associated with them. This will affect all
* fields added to this message. Defaults to true. */
void SetPrimitivesHavePresence(bool have_presence);
/* These return NULL if the field is not found. */
FieldDef* FindFieldByNumber(uint32_t number);
FieldDef* FindFieldByName(const char *name, size_t len);
const FieldDef* FindFieldByNumber(uint32_t number) const;
const FieldDef* FindFieldByName(const char* name, size_t len) const;
FieldDef* FindFieldByName(const char *name) {
return FindFieldByName(name, strlen(name));
}
const FieldDef* FindFieldByName(const char *name) const {
return FindFieldByName(name, strlen(name));
}
template <class T>
FieldDef* FindFieldByName(const T& str) {
return FindFieldByName(str.c_str(), str.size());
}
template <class T>
const FieldDef* FindFieldByName(const T& str) const {
return FindFieldByName(str.c_str(), str.size());
}
OneofDef* FindOneofByName(const char* name, size_t len);
const OneofDef* FindOneofByName(const char* name, size_t len) const;
OneofDef* FindOneofByName(const char* name) {
return FindOneofByName(name, strlen(name));
}
const OneofDef* FindOneofByName(const char* name) const {
return FindOneofByName(name, strlen(name));
}
template<class T>
OneofDef* FindOneofByName(const T& str) {
return FindOneofByName(str.c_str(), str.size());
}
template<class T>
const OneofDef* FindOneofByName(const T& str) const {
return FindOneofByName(str.c_str(), str.size());
}
/* Is this message a map entry? */
void setmapentry(bool map_entry);
bool mapentry() const;
/* Iteration over fields. The order is undefined. */
class field_iterator
: public std::iterator<std::forward_iterator_tag, FieldDef*> {
public:
explicit field_iterator(MessageDef* md);
static field_iterator end(MessageDef* md);
void operator++();
FieldDef* operator*() const;
bool operator!=(const field_iterator& other) const;
bool operator==(const field_iterator& other) const;
private:
upb_msg_field_iter iter_;
};
class const_field_iterator
: public std::iterator<std::forward_iterator_tag, const FieldDef*> {
public:
explicit const_field_iterator(const MessageDef* md);
static const_field_iterator end(const MessageDef* md);
void operator++();
const FieldDef* operator*() const;
bool operator!=(const const_field_iterator& other) const;
bool operator==(const const_field_iterator& other) const;
private:
upb_msg_field_iter iter_;
};
/* Iteration over oneofs. The order is undefined. */
class oneof_iterator
: public std::iterator<std::forward_iterator_tag, FieldDef*> {
public:
explicit oneof_iterator(MessageDef* md);
static oneof_iterator end(MessageDef* md);
void operator++();
OneofDef* operator*() const;
bool operator!=(const oneof_iterator& other) const;
bool operator==(const oneof_iterator& other) const;
private:
upb_msg_oneof_iter iter_;
};
class const_oneof_iterator
: public std::iterator<std::forward_iterator_tag, const FieldDef*> {
public:
explicit const_oneof_iterator(const MessageDef* md);
static const_oneof_iterator end(const MessageDef* md);
void operator++();
const OneofDef* operator*() const;
bool operator!=(const const_oneof_iterator& other) const;
bool operator==(const const_oneof_iterator& other) const;
private:
upb_msg_oneof_iter iter_;
};
class FieldAccessor {
public:
explicit FieldAccessor(MessageDef* msg) : msg_(msg) {}
field_iterator begin() { return msg_->field_begin(); }
field_iterator end() { return msg_->field_end(); }
private:
MessageDef* msg_;
};
class ConstFieldAccessor {
public:
explicit ConstFieldAccessor(const MessageDef* msg) : msg_(msg) {}
const_field_iterator begin() { return msg_->field_begin(); }
const_field_iterator end() { return msg_->field_end(); }
private:
const MessageDef* msg_;
};
class OneofAccessor {
public:
explicit OneofAccessor(MessageDef* msg) : msg_(msg) {}
oneof_iterator begin() { return msg_->oneof_begin(); }
oneof_iterator end() { return msg_->oneof_end(); }
private:
MessageDef* msg_;
};
class ConstOneofAccessor {
public:
explicit ConstOneofAccessor(const MessageDef* msg) : msg_(msg) {}
const_oneof_iterator begin() { return msg_->oneof_begin(); }
const_oneof_iterator end() { return msg_->oneof_end(); }
private:
const MessageDef* msg_;
};
field_iterator field_begin();
field_iterator field_end();
const_field_iterator field_begin() const;
const_field_iterator field_end() const;
oneof_iterator oneof_begin();
oneof_iterator oneof_end();
const_oneof_iterator oneof_begin() const;
const_oneof_iterator oneof_end() const;
FieldAccessor fields() { return FieldAccessor(this); }
ConstFieldAccessor fields() const { return ConstFieldAccessor(this); }
OneofAccessor oneofs() { return OneofAccessor(this); }
ConstOneofAccessor oneofs() const { return ConstOneofAccessor(this); }
private:
UPB_DISALLOW_POD_OPS(MessageDef, upb::MessageDef)
};
#endif /* __cplusplus */
UPB_BEGIN_EXTERN_C
/* Returns NULL if memory allocation failed. */
upb_msgdef *upb_msgdef_new(const void *owner);
/* Include upb_refcounted methods like upb_msgdef_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_msgdef, upb_msgdef_upcast2)
bool upb_msgdef_freeze(upb_msgdef *m, upb_status *status);
const char *upb_msgdef_fullname(const upb_msgdef *m);
const char *upb_msgdef_name(const upb_msgdef *m);
int upb_msgdef_numoneofs(const upb_msgdef *m);
upb_syntax_t upb_msgdef_syntax(const upb_msgdef *m);
bool upb_msgdef_addfield(upb_msgdef *m, upb_fielddef *f, const void *ref_donor,
upb_status *s);
bool upb_msgdef_addoneof(upb_msgdef *m, upb_oneofdef *o, const void *ref_donor,
upb_status *s);
bool upb_msgdef_setfullname(upb_msgdef *m, const char *fullname, upb_status *s);
void upb_msgdef_setmapentry(upb_msgdef *m, bool map_entry);
bool upb_msgdef_mapentry(const upb_msgdef *m);
bool upb_msgdef_setsyntax(upb_msgdef *m, upb_syntax_t syntax);
/* Field lookup in a couple of different variations:
* - itof = int to field
* - ntof = name to field
* - ntofz = name to field, null-terminated string. */
const upb_fielddef *upb_msgdef_itof(const upb_msgdef *m, uint32_t i);
const upb_fielddef *upb_msgdef_ntof(const upb_msgdef *m, const char *name,
size_t len);
int upb_msgdef_numfields(const upb_msgdef *m);
UPB_INLINE const upb_fielddef *upb_msgdef_ntofz(const upb_msgdef *m,
const char *name) {
return upb_msgdef_ntof(m, name, strlen(name));
}
UPB_INLINE upb_fielddef *upb_msgdef_itof_mutable(upb_msgdef *m, uint32_t i) {
return (upb_fielddef*)upb_msgdef_itof(m, i);
}
UPB_INLINE upb_fielddef *upb_msgdef_ntof_mutable(upb_msgdef *m,
const char *name, size_t len) {
return (upb_fielddef *)upb_msgdef_ntof(m, name, len);
}
/* Oneof lookup:
* - ntoo = name to oneof
* - ntooz = name to oneof, null-terminated string. */
const upb_oneofdef *upb_msgdef_ntoo(const upb_msgdef *m, const char *name,
size_t len);
int upb_msgdef_numoneofs(const upb_msgdef *m);
UPB_INLINE const upb_oneofdef *upb_msgdef_ntooz(const upb_msgdef *m,
const char *name) {
return upb_msgdef_ntoo(m, name, strlen(name));
}
UPB_INLINE upb_oneofdef *upb_msgdef_ntoo_mutable(upb_msgdef *m,
const char *name, size_t len) {
return (upb_oneofdef *)upb_msgdef_ntoo(m, name, len);
}
/* Lookup of either field or oneof by name. Returns whether either was found.
* If the return is true, then the found def will be set, and the non-found
* one set to NULL. */
bool upb_msgdef_lookupname(const upb_msgdef *m, const char *name, size_t len,
const upb_fielddef **f, const upb_oneofdef **o);
UPB_INLINE bool upb_msgdef_lookupnamez(const upb_msgdef *m, const char *name,
const upb_fielddef **f,
const upb_oneofdef **o) {
return upb_msgdef_lookupname(m, name, strlen(name), f, o);
}
/* Iteration over fields and oneofs. For example:
*
* upb_msg_field_iter i;
* for(upb_msg_field_begin(&i, m);
* !upb_msg_field_done(&i);
* upb_msg_field_next(&i)) {
* upb_fielddef *f = upb_msg_iter_field(&i);
* // ...
* }
*
* For C we don't have separate iterators for const and non-const.
* It is the caller's responsibility to cast the upb_fielddef* to
* const if the upb_msgdef* is const. */
void upb_msg_field_begin(upb_msg_field_iter *iter, const upb_msgdef *m);
void upb_msg_field_next(upb_msg_field_iter *iter);
bool upb_msg_field_done(const upb_msg_field_iter *iter);
upb_fielddef *upb_msg_iter_field(const upb_msg_field_iter *iter);
void upb_msg_field_iter_setdone(upb_msg_field_iter *iter);
/* Similar to above, we also support iterating through the oneofs in a
* msgdef. */
void upb_msg_oneof_begin(upb_msg_oneof_iter *iter, const upb_msgdef *m);
void upb_msg_oneof_next(upb_msg_oneof_iter *iter);
bool upb_msg_oneof_done(const upb_msg_oneof_iter *iter);
upb_oneofdef *upb_msg_iter_oneof(const upb_msg_oneof_iter *iter);
void upb_msg_oneof_iter_setdone(upb_msg_oneof_iter *iter);
UPB_END_EXTERN_C
/* upb::EnumDef ***************************************************************/
typedef upb_strtable_iter upb_enum_iter;
#ifdef __cplusplus
/* Class that represents an enum. Its base class is upb::Def (convert with
* upb::upcast()). */
class upb::EnumDef {
public:
/* Returns NULL if memory allocation failed. */
static reffed_ptr<EnumDef> New();
/* upb::RefCounted methods like Ref()/Unref(). */
UPB_REFCOUNTED_CPPMETHODS
/* Functionality from upb::Def. */
const char* full_name() const;
const char* name() const;
bool set_full_name(const char* fullname, Status* s);
bool set_full_name(const std::string& fullname, Status* s);
/* Call to freeze this EnumDef. */
bool Freeze(Status* s);
/* The value that is used as the default when no field default is specified.
* If not set explicitly, the first value that was added will be used.
* The default value must be a member of the enum.
* Requires that value_count() > 0. */
int32_t default_value() const;
/* Sets the default value. If this value is not valid, returns false and an
* error message in status. */
bool set_default_value(int32_t val, Status* status);
/* Returns the number of values currently defined in the enum. Note that
* multiple names can refer to the same number, so this may be greater than
* the total number of unique numbers. */
int value_count() const;
/* Adds a single name/number pair to the enum. Fails if this name has
* already been used by another value. */
bool AddValue(const char* name, int32_t num, Status* status);
bool AddValue(const std::string& name, int32_t num, Status* status);
/* Lookups from name to integer, returning true if found. */
bool FindValueByName(const char* name, int32_t* num) const;
/* Finds the name corresponding to the given number, or NULL if none was
* found. If more than one name corresponds to this number, returns the
* first one that was added. */
const char* FindValueByNumber(int32_t num) const;
/* Iteration over name/value pairs. The order is undefined.
* Adding an enum val invalidates any iterators.
*
* TODO: make compatible with range-for, with elements as pairs? */
class Iterator {
public:
explicit Iterator(const EnumDef*);
int32_t number();
const char *name();
bool Done();
void Next();
private:
upb_enum_iter iter_;
};
private:
UPB_DISALLOW_POD_OPS(EnumDef, upb::EnumDef)
};
#endif /* __cplusplus */
UPB_BEGIN_EXTERN_C
/* Native C API. */
upb_enumdef *upb_enumdef_new(const void *owner);
/* Include upb_refcounted methods like upb_enumdef_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_enumdef, upb_enumdef_upcast2)
bool upb_enumdef_freeze(upb_enumdef *e, upb_status *status);
/* From upb_def. */
const char *upb_enumdef_fullname(const upb_enumdef *e);
const char *upb_enumdef_name(const upb_enumdef *e);
bool upb_enumdef_setfullname(upb_enumdef *e, const char *fullname,
upb_status *s);
int32_t upb_enumdef_default(const upb_enumdef *e);
bool upb_enumdef_setdefault(upb_enumdef *e, int32_t val, upb_status *s);
int upb_enumdef_numvals(const upb_enumdef *e);
bool upb_enumdef_addval(upb_enumdef *e, const char *name, int32_t num,
upb_status *status);
/* Enum lookups:
* - ntoi: look up a name with specified length.
* - ntoiz: look up a name provided as a null-terminated string.
* - iton: look up an integer, returning the name as a null-terminated
* string. */
bool upb_enumdef_ntoi(const upb_enumdef *e, const char *name, size_t len,
int32_t *num);
UPB_INLINE bool upb_enumdef_ntoiz(const upb_enumdef *e,
const char *name, int32_t *num) {
return upb_enumdef_ntoi(e, name, strlen(name), num);
}
const char *upb_enumdef_iton(const upb_enumdef *e, int32_t num);
/* upb_enum_iter i;
* for(upb_enum_begin(&i, e); !upb_enum_done(&i); upb_enum_next(&i)) {
* // ...
* }
*/
void upb_enum_begin(upb_enum_iter *iter, const upb_enumdef *e);
void upb_enum_next(upb_enum_iter *iter);
bool upb_enum_done(upb_enum_iter *iter);
const char *upb_enum_iter_name(upb_enum_iter *iter);
int32_t upb_enum_iter_number(upb_enum_iter *iter);
UPB_END_EXTERN_C
/* upb::OneofDef **************************************************************/
typedef upb_inttable_iter upb_oneof_iter;
#ifdef __cplusplus
/* Class that represents a oneof. */
class upb::OneofDef {
public:
/* Returns NULL if memory allocation failed. */
static reffed_ptr<OneofDef> New();
/* upb::RefCounted methods like Ref()/Unref(). */
UPB_REFCOUNTED_CPPMETHODS
/* Returns the MessageDef that owns this OneofDef. */
const MessageDef* containing_type() const;
/* Returns the name of this oneof. This is the name used to look up the oneof
* by name once added to a message def. */
const char* name() const;
bool set_name(const char* name, Status* s);
bool set_name(const std::string& name, Status* s);
/* Returns the number of fields currently defined in the oneof. */
int field_count() const;
/* Adds a field to the oneof. The field must not have been added to any other
* oneof or msgdef. If the oneof is not yet part of a msgdef, then when the
* oneof is eventually added to a msgdef, all fields added to the oneof will
* also be added to the msgdef at that time. If the oneof is already part of a
* msgdef, the field must either be a part of that msgdef already, or must not
* be a part of any msgdef; in the latter case, the field is added to the
* msgdef as a part of this operation.
*
* The field may only have an OPTIONAL label, never REQUIRED or REPEATED.
*
* If |f| is already part of this MessageDef, this method performs no action
* and returns true (success). Thus, this method is idempotent. */
bool AddField(FieldDef* field, Status* s);
bool AddField(const reffed_ptr<FieldDef>& field, Status* s);
/* Looks up by name. */
const FieldDef* FindFieldByName(const char* name, size_t len) const;
FieldDef* FindFieldByName(const char* name, size_t len);
const FieldDef* FindFieldByName(const char* name) const {
return FindFieldByName(name, strlen(name));
}
FieldDef* FindFieldByName(const char* name) {
return FindFieldByName(name, strlen(name));
}
template <class T>
FieldDef* FindFieldByName(const T& str) {
return FindFieldByName(str.c_str(), str.size());
}
template <class T>
const FieldDef* FindFieldByName(const T& str) const {
return FindFieldByName(str.c_str(), str.size());
}
/* Looks up by tag number. */
const FieldDef* FindFieldByNumber(uint32_t num) const;
/* Iteration over fields. The order is undefined. */
class iterator : public std::iterator<std::forward_iterator_tag, FieldDef*> {
public:
explicit iterator(OneofDef* md);
static iterator end(OneofDef* md);
void operator++();
FieldDef* operator*() const;
bool operator!=(const iterator& other) const;
bool operator==(const iterator& other) const;
private:
upb_oneof_iter iter_;
};
class const_iterator
: public std::iterator<std::forward_iterator_tag, const FieldDef*> {
public:
explicit const_iterator(const OneofDef* md);
static const_iterator end(const OneofDef* md);
void operator++();
const FieldDef* operator*() const;
bool operator!=(const const_iterator& other) const;
bool operator==(const const_iterator& other) const;
private:
upb_oneof_iter iter_;
};
iterator begin();
iterator end();
const_iterator begin() const;
const_iterator end() const;
private:
UPB_DISALLOW_POD_OPS(OneofDef, upb::OneofDef)
};
#endif /* __cplusplus */
UPB_BEGIN_EXTERN_C
/* Native C API. */
upb_oneofdef *upb_oneofdef_new(const void *owner);
/* Include upb_refcounted methods like upb_oneofdef_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_oneofdef, upb_oneofdef_upcast)
const char *upb_oneofdef_name(const upb_oneofdef *o);
const upb_msgdef *upb_oneofdef_containingtype(const upb_oneofdef *o);
int upb_oneofdef_numfields(const upb_oneofdef *o);
uint32_t upb_oneofdef_index(const upb_oneofdef *o);
bool upb_oneofdef_setname(upb_oneofdef *o, const char *name, upb_status *s);
bool upb_oneofdef_addfield(upb_oneofdef *o, upb_fielddef *f,
const void *ref_donor,
upb_status *s);
/* Oneof lookups:
* - ntof: look up a field by name.
* - ntofz: look up a field by name (as a null-terminated string).
* - itof: look up a field by number. */
const upb_fielddef *upb_oneofdef_ntof(const upb_oneofdef *o,
const char *name, size_t length);
UPB_INLINE const upb_fielddef *upb_oneofdef_ntofz(const upb_oneofdef *o,
const char *name) {
return upb_oneofdef_ntof(o, name, strlen(name));
}
const upb_fielddef *upb_oneofdef_itof(const upb_oneofdef *o, uint32_t num);
/* upb_oneof_iter i;
* for(upb_oneof_begin(&i, e); !upb_oneof_done(&i); upb_oneof_next(&i)) {
* // ...
* }
*/
void upb_oneof_begin(upb_oneof_iter *iter, const upb_oneofdef *o);
void upb_oneof_next(upb_oneof_iter *iter);
bool upb_oneof_done(upb_oneof_iter *iter);
upb_fielddef *upb_oneof_iter_field(const upb_oneof_iter *iter);
void upb_oneof_iter_setdone(upb_oneof_iter *iter);
UPB_END_EXTERN_C
/* upb::FileDef ***************************************************************/
#ifdef __cplusplus
/* Class that represents a .proto file with some things defined in it.
*
* Many users won't care about FileDefs, but they are necessary if you want to
* read the values of file-level options. */
class upb::FileDef {
public:
/* Returns NULL if memory allocation failed. */
static reffed_ptr<FileDef> New();
/* upb::RefCounted methods like Ref()/Unref(). */
UPB_REFCOUNTED_CPPMETHODS
/* Get/set name of the file (eg. "foo/bar.proto"). */
const char* name() const;
bool set_name(const char* name, Status* s);
bool set_name(const std::string& name, Status* s);
/* Package name for definitions inside the file (eg. "foo.bar"). */
const char* package() const;
bool set_package(const char* package, Status* s);
/* Sets the php class prefix which is prepended to all php generated classes
* from this .proto. Default is empty. */
const char* phpprefix() const;
bool set_phpprefix(const char* phpprefix, Status* s);
/* Use this option to change the namespace of php generated classes. Default
* is empty. When this option is empty, the package name will be used for
* determining the namespace. */
const char* phpnamespace() const;
bool set_phpnamespace(const char* phpnamespace, Status* s);
/* Syntax for the file. Defaults to proto2. */
upb_syntax_t syntax() const;
void set_syntax(upb_syntax_t syntax);
/* Get the list of defs from the file. These are returned in the order that
* they were added to the FileDef. */
int def_count() const;
const Def* def(int index) const;
Def* def(int index);
/* Get the list of dependencies from the file. These are returned in the
* order that they were added to the FileDef. */
int dependency_count() const;
const FileDef* dependency(int index) const;
/* Adds defs to this file. The def must not already belong to another
* file.
*
* Note: this does *not* ensure that this def's name is unique in this file!
* Use a SymbolTable if you want to check this property. Especially since
* properly checking uniqueness would require a check across *all* files
* (including dependencies). */
bool AddDef(Def* def, Status* s);
bool AddMessage(MessageDef* m, Status* s);
bool AddEnum(EnumDef* e, Status* s);
bool AddExtension(FieldDef* f, Status* s);
/* Adds a dependency of this file. */
bool AddDependency(const FileDef* file);
/* Freezes this FileDef and all messages/enums under it. All subdefs must be
* resolved and all messages/enums must validate. Returns true if this
* succeeded.
*
* TODO(haberman): should we care whether the file's dependencies are frozen
* already? */
bool Freeze(Status* s);
private:
UPB_DISALLOW_POD_OPS(FileDef, upb::FileDef)
};
#endif
UPB_BEGIN_EXTERN_C
upb_filedef *upb_filedef_new(const void *owner);
/* Include upb_refcounted methods like upb_msgdef_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_filedef, upb_filedef_upcast)
const char *upb_filedef_name(const upb_filedef *f);
const char *upb_filedef_package(const upb_filedef *f);
const char *upb_filedef_phpprefix(const upb_filedef *f);
const char *upb_filedef_phpnamespace(const upb_filedef *f);
upb_syntax_t upb_filedef_syntax(const upb_filedef *f);
size_t upb_filedef_defcount(const upb_filedef *f);
size_t upb_filedef_depcount(const upb_filedef *f);
const upb_def *upb_filedef_def(const upb_filedef *f, size_t i);
const upb_filedef *upb_filedef_dep(const upb_filedef *f, size_t i);
bool upb_filedef_freeze(upb_filedef *f, upb_status *s);
bool upb_filedef_setname(upb_filedef *f, const char *name, upb_status *s);
bool upb_filedef_setpackage(upb_filedef *f, const char *package, upb_status *s);
bool upb_filedef_setphpprefix(upb_filedef *f, const char *phpprefix,
upb_status *s);
bool upb_filedef_setphpnamespace(upb_filedef *f, const char *phpnamespace,
upb_status *s);
bool upb_filedef_setsyntax(upb_filedef *f, upb_syntax_t syntax, upb_status *s);
bool upb_filedef_adddef(upb_filedef *f, upb_def *def, const void *ref_donor,
upb_status *s);
bool upb_filedef_adddep(upb_filedef *f, const upb_filedef *dep);
UPB_INLINE bool upb_filedef_addmsg(upb_filedef *f, upb_msgdef *m,
const void *ref_donor, upb_status *s) {
return upb_filedef_adddef(f, upb_msgdef_upcast_mutable(m), ref_donor, s);
}
UPB_INLINE bool upb_filedef_addenum(upb_filedef *f, upb_enumdef *e,
const void *ref_donor, upb_status *s) {
return upb_filedef_adddef(f, upb_enumdef_upcast_mutable(e), ref_donor, s);
}
UPB_INLINE bool upb_filedef_addext(upb_filedef *file, upb_fielddef *f,
const void *ref_donor, upb_status *s) {
return upb_filedef_adddef(file, upb_fielddef_upcast_mutable(f), ref_donor, s);
}
UPB_INLINE upb_def *upb_filedef_mutabledef(upb_filedef *f, int i) {
return (upb_def*)upb_filedef_def(f, i);
}
UPB_END_EXTERN_C
typedef struct {
UPB_PRIVATE_FOR_CPP
upb_strtable_iter iter;
upb_deftype_t type;
} upb_symtab_iter;
#ifdef __cplusplus
/* Non-const methods in upb::SymbolTable are NOT thread-safe. */
class upb::SymbolTable {
public:
/* Returns a new symbol table with a single ref owned by "owner."
* Returns NULL if memory allocation failed. */
static SymbolTable* New();
static void Free(upb::SymbolTable* table);
/* For all lookup functions, the returned pointer is not owned by the
* caller; it may be invalidated by any non-const call or unref of the
* SymbolTable! To protect against this, take a ref if desired. */
/* Freezes the symbol table: prevents further modification of it.
* After the Freeze() operation is successful, the SymbolTable must only be
* accessed via a const pointer.
*
* Unlike with upb::MessageDef/upb::EnumDef/etc, freezing a SymbolTable is not
* a necessary step in using a SymbolTable. If you have no need for it to be
* immutable, there is no need to freeze it ever. However sometimes it is
* useful, and SymbolTables that are statically compiled into the binary are
* always frozen by nature. */
void Freeze();
/* Resolves the given symbol using the rules described in descriptor.proto,
* namely:
*
* If the name starts with a '.', it is fully-qualified. Otherwise,
* C++-like scoping rules are used to find the type (i.e. first the nested
* types within this message are searched, then within the parent, on up
* to the root namespace).
*
* If not found, returns NULL. */
const Def* Resolve(const char* base, const char* sym) const;
/* Finds an entry in the symbol table with this exact name. If not found,
* returns NULL. */
const Def* Lookup(const char *sym) const;
const MessageDef* LookupMessage(const char *sym) const;
const EnumDef* LookupEnum(const char *sym) const;
/* TODO: introduce a C++ iterator, but make it nice and templated so that if
* you ask for an iterator of MessageDef the iterated elements are strongly
* typed as MessageDef*. */
/* Adds the given mutable defs to the symtab, resolving all symbols (including
* enum default values) and finalizing the defs. Only one def per name may be
* in the list, and the defs may not duplicate any name already in the symtab.
* All defs must have a name -- anonymous defs are not allowed. Anonymous
* defs can still be frozen by calling upb_def_freeze() directly.
*
* The entire operation either succeeds or fails. If the operation fails,
* the symtab is unchanged, false is returned, and status indicates the
* error. The caller passes a ref on all defs to the symtab (even if the
* operation fails).
*
* TODO(haberman): currently failure will leave the symtab unchanged, but may
* leave the defs themselves partially resolved. Does this matter? If so we
* could do a prepass that ensures that all symbols are resolvable and bail
* if not, so we don't mutate anything until we know the operation will
* succeed. */
bool Add(Def*const* defs, size_t n, void* ref_donor, Status* status);
bool Add(const std::vector<Def*>& defs, void *owner, Status* status) {
return Add((Def*const*)&defs[0], defs.size(), owner, status);
}
/* Resolves all subdefs for messages in this file and attempts to freeze the
* file. If this succeeds, adds all the symbols to this SymbolTable
* (replacing any existing ones with the same names). */
bool AddFile(FileDef* file, Status* s);
private:
UPB_DISALLOW_POD_OPS(SymbolTable, upb::SymbolTable)
};
#endif /* __cplusplus */
UPB_BEGIN_EXTERN_C
/* Native C API. */
upb_symtab *upb_symtab_new();
void upb_symtab_free(upb_symtab* s);
const upb_def *upb_symtab_resolve(const upb_symtab *s, const char *base,
const char *sym);
const upb_def *upb_symtab_lookup(const upb_symtab *s, const char *sym);
const upb_msgdef *upb_symtab_lookupmsg(const upb_symtab *s, const char *sym);
const upb_enumdef *upb_symtab_lookupenum(const upb_symtab *s, const char *sym);
bool upb_symtab_add(upb_symtab *s, upb_def *const*defs, size_t n,
void *ref_donor, upb_status *status);
bool upb_symtab_addfile(upb_symtab *s, upb_filedef *file, upb_status* status);
/* upb_symtab_iter i;
* for(upb_symtab_begin(&i, s, type); !upb_symtab_done(&i);
* upb_symtab_next(&i)) {
* const upb_def *def = upb_symtab_iter_def(&i);
* // ...
* }
*
* For C we don't have separate iterators for const and non-const.
* It is the caller's responsibility to cast the upb_fielddef* to
* const if the upb_msgdef* is const. */
void upb_symtab_begin(upb_symtab_iter *iter, const upb_symtab *s,
upb_deftype_t type);
void upb_symtab_next(upb_symtab_iter *iter);
bool upb_symtab_done(const upb_symtab_iter *iter);
const upb_def *upb_symtab_iter_def(const upb_symtab_iter *iter);
UPB_END_EXTERN_C
#ifdef __cplusplus
/* C++ inline wrappers. */
namespace upb {
inline SymbolTable* SymbolTable::New() {
return upb_symtab_new();
}
inline void SymbolTable::Free(SymbolTable* s) {
upb_symtab_free(s);
}
inline const Def *SymbolTable::Resolve(const char *base,
const char *sym) const {
return upb_symtab_resolve(this, base, sym);
}
inline const Def* SymbolTable::Lookup(const char *sym) const {
return upb_symtab_lookup(this, sym);
}
inline const MessageDef *SymbolTable::LookupMessage(const char *sym) const {
return upb_symtab_lookupmsg(this, sym);
}
inline bool SymbolTable::Add(
Def*const* defs, size_t n, void* ref_donor, Status* status) {
return upb_symtab_add(this, (upb_def*const*)defs, n, ref_donor, status);
}
inline bool SymbolTable::AddFile(FileDef* file, Status* s) {
return upb_symtab_addfile(this, file, s);
}
} /* namespace upb */
#endif
#ifdef __cplusplus
UPB_INLINE const char* upb_safecstr(const std::string& str) {
UPB_ASSERT(str.size() == std::strlen(str.c_str()));
return str.c_str();
}
/* Inline C++ wrappers. */
namespace upb {
inline Def::Type Def::def_type() const { return upb_def_type(this); }
inline const char* Def::full_name() const { return upb_def_fullname(this); }
inline const char* Def::name() const { return upb_def_name(this); }
inline bool Def::set_full_name(const char* fullname, Status* s) {
return upb_def_setfullname(this, fullname, s);
}
inline bool Def::set_full_name(const std::string& fullname, Status* s) {
return upb_def_setfullname(this, upb_safecstr(fullname), s);
}
inline bool Def::Freeze(Def* const* defs, size_t n, Status* status) {
return upb_def_freeze(defs, n, status);
}
inline bool Def::Freeze(const std::vector<Def*>& defs, Status* status) {
return upb_def_freeze((Def* const*)&defs[0], defs.size(), status);
}
inline bool FieldDef::CheckType(int32_t val) {
return upb_fielddef_checktype(val);
}
inline bool FieldDef::CheckLabel(int32_t val) {
return upb_fielddef_checklabel(val);
}
inline bool FieldDef::CheckDescriptorType(int32_t val) {
return upb_fielddef_checkdescriptortype(val);
}
inline bool FieldDef::CheckIntegerFormat(int32_t val) {
return upb_fielddef_checkintfmt(val);
}
inline FieldDef::Type FieldDef::ConvertType(int32_t val) {
UPB_ASSERT(CheckType(val));
return static_cast<FieldDef::Type>(val);
}
inline FieldDef::Label FieldDef::ConvertLabel(int32_t val) {
UPB_ASSERT(CheckLabel(val));
return static_cast<FieldDef::Label>(val);
}
inline FieldDef::DescriptorType FieldDef::ConvertDescriptorType(int32_t val) {
UPB_ASSERT(CheckDescriptorType(val));
return static_cast<FieldDef::DescriptorType>(val);
}
inline FieldDef::IntegerFormat FieldDef::ConvertIntegerFormat(int32_t val) {
UPB_ASSERT(CheckIntegerFormat(val));
return static_cast<FieldDef::IntegerFormat>(val);
}
inline reffed_ptr<FieldDef> FieldDef::New() {
upb_fielddef *f = upb_fielddef_new(&f);
return reffed_ptr<FieldDef>(f, &f);
}
inline const char* FieldDef::full_name() const {
return upb_fielddef_fullname(this);
}
inline bool FieldDef::set_full_name(const char* fullname, Status* s) {
return upb_fielddef_setfullname(this, fullname, s);
}
inline bool FieldDef::set_full_name(const std::string& fullname, Status* s) {
return upb_fielddef_setfullname(this, upb_safecstr(fullname), s);
}
inline bool FieldDef::type_is_set() const {
return upb_fielddef_typeisset(this);
}
inline FieldDef::Type FieldDef::type() const { return upb_fielddef_type(this); }
inline FieldDef::DescriptorType FieldDef::descriptor_type() const {
return upb_fielddef_descriptortype(this);
}
inline FieldDef::Label FieldDef::label() const {
return upb_fielddef_label(this);
}
inline uint32_t FieldDef::number() const { return upb_fielddef_number(this); }
inline const char* FieldDef::name() const { return upb_fielddef_name(this); }
inline bool FieldDef::is_extension() const {
return upb_fielddef_isextension(this);
}
inline size_t FieldDef::GetJsonName(char* buf, size_t len) const {
return upb_fielddef_getjsonname(this, buf, len);
}
inline bool FieldDef::lazy() const {
return upb_fielddef_lazy(this);
}
inline void FieldDef::set_lazy(bool lazy) {
upb_fielddef_setlazy(this, lazy);
}
inline bool FieldDef::packed() const {
return upb_fielddef_packed(this);
}
inline uint32_t FieldDef::index() const {
return upb_fielddef_index(this);
}
inline void FieldDef::set_packed(bool packed) {
upb_fielddef_setpacked(this, packed);
}
inline const MessageDef* FieldDef::containing_type() const {
return upb_fielddef_containingtype(this);
}
inline const OneofDef* FieldDef::containing_oneof() const {
return upb_fielddef_containingoneof(this);
}
inline const char* FieldDef::containing_type_name() {
return upb_fielddef_containingtypename(this);
}
inline bool FieldDef::set_number(uint32_t number, Status* s) {
return upb_fielddef_setnumber(this, number, s);
}
inline bool FieldDef::set_name(const char *name, Status* s) {
return upb_fielddef_setname(this, name, s);
}
inline bool FieldDef::set_name(const std::string& name, Status* s) {
return upb_fielddef_setname(this, upb_safecstr(name), s);
}
inline bool FieldDef::set_json_name(const char *name, Status* s) {
return upb_fielddef_setjsonname(this, name, s);
}
inline bool FieldDef::set_json_name(const std::string& name, Status* s) {
return upb_fielddef_setjsonname(this, upb_safecstr(name), s);
}
inline void FieldDef::clear_json_name() {
upb_fielddef_clearjsonname(this);
}
inline bool FieldDef::set_containing_type_name(const char *name, Status* s) {
return upb_fielddef_setcontainingtypename(this, name, s);
}
inline bool FieldDef::set_containing_type_name(const std::string &name,
Status *s) {
return upb_fielddef_setcontainingtypename(this, upb_safecstr(name), s);
}
inline void FieldDef::set_type(upb_fieldtype_t type) {
upb_fielddef_settype(this, type);
}
inline void FieldDef::set_is_extension(bool is_extension) {
upb_fielddef_setisextension(this, is_extension);
}
inline void FieldDef::set_descriptor_type(FieldDef::DescriptorType type) {
upb_fielddef_setdescriptortype(this, type);
}
inline void FieldDef::set_label(upb_label_t label) {
upb_fielddef_setlabel(this, label);
}
inline bool FieldDef::IsSubMessage() const {
return upb_fielddef_issubmsg(this);
}
inline bool FieldDef::IsString() const { return upb_fielddef_isstring(this); }
inline bool FieldDef::IsSequence() const { return upb_fielddef_isseq(this); }
inline bool FieldDef::IsMap() const { return upb_fielddef_ismap(this); }
inline int64_t FieldDef::default_int64() const {
return upb_fielddef_defaultint64(this);
}
inline int32_t FieldDef::default_int32() const {
return upb_fielddef_defaultint32(this);
}
inline uint64_t FieldDef::default_uint64() const {
return upb_fielddef_defaultuint64(this);
}
inline uint32_t FieldDef::default_uint32() const {
return upb_fielddef_defaultuint32(this);
}
inline bool FieldDef::default_bool() const {
return upb_fielddef_defaultbool(this);
}
inline float FieldDef::default_float() const {
return upb_fielddef_defaultfloat(this);
}
inline double FieldDef::default_double() const {
return upb_fielddef_defaultdouble(this);
}
inline const char* FieldDef::default_string(size_t* len) const {
return upb_fielddef_defaultstr(this, len);
}
inline void FieldDef::set_default_int64(int64_t value) {
upb_fielddef_setdefaultint64(this, value);
}
inline void FieldDef::set_default_int32(int32_t value) {
upb_fielddef_setdefaultint32(this, value);
}
inline void FieldDef::set_default_uint64(uint64_t value) {
upb_fielddef_setdefaultuint64(this, value);
}
inline void FieldDef::set_default_uint32(uint32_t value) {
upb_fielddef_setdefaultuint32(this, value);
}
inline void FieldDef::set_default_bool(bool value) {
upb_fielddef_setdefaultbool(this, value);
}
inline void FieldDef::set_default_float(float value) {
upb_fielddef_setdefaultfloat(this, value);
}
inline void FieldDef::set_default_double(double value) {
upb_fielddef_setdefaultdouble(this, value);
}
inline bool FieldDef::set_default_string(const void *str, size_t len,
Status *s) {
return upb_fielddef_setdefaultstr(this, str, len, s);
}
inline bool FieldDef::set_default_string(const std::string& str, Status* s) {
return upb_fielddef_setdefaultstr(this, str.c_str(), str.size(), s);
}
inline void FieldDef::set_default_cstr(const char* str, Status* s) {
return upb_fielddef_setdefaultcstr(this, str, s);
}
inline bool FieldDef::HasSubDef() const { return upb_fielddef_hassubdef(this); }
inline const Def* FieldDef::subdef() const { return upb_fielddef_subdef(this); }
inline const MessageDef *FieldDef::message_subdef() const {
return upb_fielddef_msgsubdef(this);
}
inline const EnumDef *FieldDef::enum_subdef() const {
return upb_fielddef_enumsubdef(this);
}
inline const char* FieldDef::subdef_name() const {
return upb_fielddef_subdefname(this);
}
inline bool FieldDef::set_subdef(const Def* subdef, Status* s) {
return upb_fielddef_setsubdef(this, subdef, s);
}
inline bool FieldDef::set_enum_subdef(const EnumDef* subdef, Status* s) {
return upb_fielddef_setenumsubdef(this, subdef, s);
}
inline bool FieldDef::set_message_subdef(const MessageDef* subdef, Status* s) {
return upb_fielddef_setmsgsubdef(this, subdef, s);
}
inline bool FieldDef::set_subdef_name(const char* name, Status* s) {
return upb_fielddef_setsubdefname(this, name, s);
}
inline bool FieldDef::set_subdef_name(const std::string& name, Status* s) {
return upb_fielddef_setsubdefname(this, upb_safecstr(name), s);
}
inline reffed_ptr<MessageDef> MessageDef::New() {
upb_msgdef *m = upb_msgdef_new(&m);
return reffed_ptr<MessageDef>(m, &m);
}
inline const char *MessageDef::full_name() const {
return upb_msgdef_fullname(this);
}
inline const char *MessageDef::name() const {
return upb_msgdef_name(this);
}
inline upb_syntax_t MessageDef::syntax() const {
return upb_msgdef_syntax(this);
}
inline bool MessageDef::set_full_name(const char* fullname, Status* s) {
return upb_msgdef_setfullname(this, fullname, s);
}
inline bool MessageDef::set_full_name(const std::string& fullname, Status* s) {
return upb_msgdef_setfullname(this, upb_safecstr(fullname), s);
}
inline bool MessageDef::set_syntax(upb_syntax_t syntax) {
return upb_msgdef_setsyntax(this, syntax);
}
inline bool MessageDef::Freeze(Status* status) {
return upb_msgdef_freeze(this, status);
}
inline int MessageDef::field_count() const {
return upb_msgdef_numfields(this);
}
inline int MessageDef::oneof_count() const {
return upb_msgdef_numoneofs(this);
}
inline bool MessageDef::AddField(upb_fielddef* f, Status* s) {
return upb_msgdef_addfield(this, f, NULL, s);
}
inline bool MessageDef::AddField(const reffed_ptr<FieldDef>& f, Status* s) {
return upb_msgdef_addfield(this, f.get(), NULL, s);
}
inline bool MessageDef::AddOneof(upb_oneofdef* o, Status* s) {
return upb_msgdef_addoneof(this, o, NULL, s);
}
inline bool MessageDef::AddOneof(const reffed_ptr<OneofDef>& o, Status* s) {
return upb_msgdef_addoneof(this, o.get(), NULL, s);
}
inline FieldDef* MessageDef::FindFieldByNumber(uint32_t number) {
return upb_msgdef_itof_mutable(this, number);
}
inline FieldDef* MessageDef::FindFieldByName(const char* name, size_t len) {
return upb_msgdef_ntof_mutable(this, name, len);
}
inline const FieldDef* MessageDef::FindFieldByNumber(uint32_t number) const {
return upb_msgdef_itof(this, number);
}
inline const FieldDef *MessageDef::FindFieldByName(const char *name,
size_t len) const {
return upb_msgdef_ntof(this, name, len);
}
inline OneofDef* MessageDef::FindOneofByName(const char* name, size_t len) {
return upb_msgdef_ntoo_mutable(this, name, len);
}
inline const OneofDef* MessageDef::FindOneofByName(const char* name,
size_t len) const {
return upb_msgdef_ntoo(this, name, len);
}
inline void MessageDef::setmapentry(bool map_entry) {
upb_msgdef_setmapentry(this, map_entry);
}
inline bool MessageDef::mapentry() const {
return upb_msgdef_mapentry(this);
}
inline MessageDef::field_iterator MessageDef::field_begin() {
return field_iterator(this);
}
inline MessageDef::field_iterator MessageDef::field_end() {
return field_iterator::end(this);
}
inline MessageDef::const_field_iterator MessageDef::field_begin() const {
return const_field_iterator(this);
}
inline MessageDef::const_field_iterator MessageDef::field_end() const {
return const_field_iterator::end(this);
}
inline MessageDef::oneof_iterator MessageDef::oneof_begin() {
return oneof_iterator(this);
}
inline MessageDef::oneof_iterator MessageDef::oneof_end() {
return oneof_iterator::end(this);
}
inline MessageDef::const_oneof_iterator MessageDef::oneof_begin() const {
return const_oneof_iterator(this);
}
inline MessageDef::const_oneof_iterator MessageDef::oneof_end() const {
return const_oneof_iterator::end(this);
}
inline MessageDef::field_iterator::field_iterator(MessageDef* md) {
upb_msg_field_begin(&iter_, md);
}
inline MessageDef::field_iterator MessageDef::field_iterator::end(
MessageDef* md) {
MessageDef::field_iterator iter(md);
upb_msg_field_iter_setdone(&iter.iter_);
return iter;
}
inline FieldDef* MessageDef::field_iterator::operator*() const {
return upb_msg_iter_field(&iter_);
}
inline void MessageDef::field_iterator::operator++() {
return upb_msg_field_next(&iter_);
}
inline bool MessageDef::field_iterator::operator==(
const field_iterator &other) const {
return upb_inttable_iter_isequal(&iter_, &other.iter_);
}
inline bool MessageDef::field_iterator::operator!=(
const field_iterator &other) const {
return !(*this == other);
}
inline MessageDef::const_field_iterator::const_field_iterator(
const MessageDef* md) {
upb_msg_field_begin(&iter_, md);
}
inline MessageDef::const_field_iterator MessageDef::const_field_iterator::end(
const MessageDef *md) {
MessageDef::const_field_iterator iter(md);
upb_msg_field_iter_setdone(&iter.iter_);
return iter;
}
inline const FieldDef* MessageDef::const_field_iterator::operator*() const {
return upb_msg_iter_field(&iter_);
}
inline void MessageDef::const_field_iterator::operator++() {
return upb_msg_field_next(&iter_);
}
inline bool MessageDef::const_field_iterator::operator==(
const const_field_iterator &other) const {
return upb_inttable_iter_isequal(&iter_, &other.iter_);
}
inline bool MessageDef::const_field_iterator::operator!=(
const const_field_iterator &other) const {
return !(*this == other);
}
inline MessageDef::oneof_iterator::oneof_iterator(MessageDef* md) {
upb_msg_oneof_begin(&iter_, md);
}
inline MessageDef::oneof_iterator MessageDef::oneof_iterator::end(
MessageDef* md) {
MessageDef::oneof_iterator iter(md);
upb_msg_oneof_iter_setdone(&iter.iter_);
return iter;
}
inline OneofDef* MessageDef::oneof_iterator::operator*() const {
return upb_msg_iter_oneof(&iter_);
}
inline void MessageDef::oneof_iterator::operator++() {
return upb_msg_oneof_next(&iter_);
}
inline bool MessageDef::oneof_iterator::operator==(
const oneof_iterator &other) const {
return upb_strtable_iter_isequal(&iter_, &other.iter_);
}
inline bool MessageDef::oneof_iterator::operator!=(
const oneof_iterator &other) const {
return !(*this == other);
}
inline MessageDef::const_oneof_iterator::const_oneof_iterator(
const MessageDef* md) {
upb_msg_oneof_begin(&iter_, md);
}
inline MessageDef::const_oneof_iterator MessageDef::const_oneof_iterator::end(
const MessageDef *md) {
MessageDef::const_oneof_iterator iter(md);
upb_msg_oneof_iter_setdone(&iter.iter_);
return iter;
}
inline const OneofDef* MessageDef::const_oneof_iterator::operator*() const {
return upb_msg_iter_oneof(&iter_);
}
inline void MessageDef::const_oneof_iterator::operator++() {
return upb_msg_oneof_next(&iter_);
}
inline bool MessageDef::const_oneof_iterator::operator==(
const const_oneof_iterator &other) const {
return upb_strtable_iter_isequal(&iter_, &other.iter_);
}
inline bool MessageDef::const_oneof_iterator::operator!=(
const const_oneof_iterator &other) const {
return !(*this == other);
}
inline reffed_ptr<EnumDef> EnumDef::New() {
upb_enumdef *e = upb_enumdef_new(&e);
return reffed_ptr<EnumDef>(e, &e);
}
inline const char* EnumDef::full_name() const {
return upb_enumdef_fullname(this);
}
inline const char* EnumDef::name() const {
return upb_enumdef_name(this);
}
inline bool EnumDef::set_full_name(const char* fullname, Status* s) {
return upb_enumdef_setfullname(this, fullname, s);
}
inline bool EnumDef::set_full_name(const std::string& fullname, Status* s) {
return upb_enumdef_setfullname(this, upb_safecstr(fullname), s);
}
inline bool EnumDef::Freeze(Status* status) {
return upb_enumdef_freeze(this, status);
}
inline int32_t EnumDef::default_value() const {
return upb_enumdef_default(this);
}
inline bool EnumDef::set_default_value(int32_t val, Status* status) {
return upb_enumdef_setdefault(this, val, status);
}
inline int EnumDef::value_count() const { return upb_enumdef_numvals(this); }
inline bool EnumDef::AddValue(const char* name, int32_t num, Status* status) {
return upb_enumdef_addval(this, name, num, status);
}
inline bool EnumDef::AddValue(const std::string& name, int32_t num,
Status* status) {
return upb_enumdef_addval(this, upb_safecstr(name), num, status);
}
inline bool EnumDef::FindValueByName(const char* name, int32_t *num) const {
return upb_enumdef_ntoiz(this, name, num);
}
inline const char* EnumDef::FindValueByNumber(int32_t num) const {
return upb_enumdef_iton(this, num);
}
inline EnumDef::Iterator::Iterator(const EnumDef* e) {
upb_enum_begin(&iter_, e);
}
inline int32_t EnumDef::Iterator::number() {
return upb_enum_iter_number(&iter_);
}
inline const char* EnumDef::Iterator::name() {
return upb_enum_iter_name(&iter_);
}
inline bool EnumDef::Iterator::Done() { return upb_enum_done(&iter_); }
inline void EnumDef::Iterator::Next() { return upb_enum_next(&iter_); }
inline reffed_ptr<OneofDef> OneofDef::New() {
upb_oneofdef *o = upb_oneofdef_new(&o);
return reffed_ptr<OneofDef>(o, &o);
}
inline const MessageDef* OneofDef::containing_type() const {
return upb_oneofdef_containingtype(this);
}
inline const char* OneofDef::name() const {
return upb_oneofdef_name(this);
}
inline bool OneofDef::set_name(const char* name, Status* s) {
return upb_oneofdef_setname(this, name, s);
}
inline bool OneofDef::set_name(const std::string& name, Status* s) {
return upb_oneofdef_setname(this, upb_safecstr(name), s);
}
inline int OneofDef::field_count() const {
return upb_oneofdef_numfields(this);
}
inline bool OneofDef::AddField(FieldDef* field, Status* s) {
return upb_oneofdef_addfield(this, field, NULL, s);
}
inline bool OneofDef::AddField(const reffed_ptr<FieldDef>& field, Status* s) {
return upb_oneofdef_addfield(this, field.get(), NULL, s);
}
inline const FieldDef* OneofDef::FindFieldByName(const char* name,
size_t len) const {
return upb_oneofdef_ntof(this, name, len);
}
inline const FieldDef* OneofDef::FindFieldByNumber(uint32_t num) const {
return upb_oneofdef_itof(this, num);
}
inline OneofDef::iterator OneofDef::begin() { return iterator(this); }
inline OneofDef::iterator OneofDef::end() { return iterator::end(this); }
inline OneofDef::const_iterator OneofDef::begin() const {
return const_iterator(this);
}
inline OneofDef::const_iterator OneofDef::end() const {
return const_iterator::end(this);
}
inline OneofDef::iterator::iterator(OneofDef* o) {
upb_oneof_begin(&iter_, o);
}
inline OneofDef::iterator OneofDef::iterator::end(OneofDef* o) {
OneofDef::iterator iter(o);
upb_oneof_iter_setdone(&iter.iter_);
return iter;
}
inline FieldDef* OneofDef::iterator::operator*() const {
return upb_oneof_iter_field(&iter_);
}
inline void OneofDef::iterator::operator++() { return upb_oneof_next(&iter_); }
inline bool OneofDef::iterator::operator==(const iterator &other) const {
return upb_inttable_iter_isequal(&iter_, &other.iter_);
}
inline bool OneofDef::iterator::operator!=(const iterator &other) const {
return !(*this == other);
}
inline OneofDef::const_iterator::const_iterator(const OneofDef* md) {
upb_oneof_begin(&iter_, md);
}
inline OneofDef::const_iterator OneofDef::const_iterator::end(
const OneofDef *md) {
OneofDef::const_iterator iter(md);
upb_oneof_iter_setdone(&iter.iter_);
return iter;
}
inline const FieldDef* OneofDef::const_iterator::operator*() const {
return upb_msg_iter_field(&iter_);
}
inline void OneofDef::const_iterator::operator++() {
return upb_oneof_next(&iter_);
}
inline bool OneofDef::const_iterator::operator==(
const const_iterator &other) const {
return upb_inttable_iter_isequal(&iter_, &other.iter_);
}
inline bool OneofDef::const_iterator::operator!=(
const const_iterator &other) const {
return !(*this == other);
}
inline reffed_ptr<FileDef> FileDef::New() {
upb_filedef *f = upb_filedef_new(&f);
return reffed_ptr<FileDef>(f, &f);
}
inline const char* FileDef::name() const {
return upb_filedef_name(this);
}
inline bool FileDef::set_name(const char* name, Status* s) {
return upb_filedef_setname(this, name, s);
}
inline bool FileDef::set_name(const std::string& name, Status* s) {
return upb_filedef_setname(this, upb_safecstr(name), s);
}
inline const char* FileDef::package() const {
return upb_filedef_package(this);
}
inline bool FileDef::set_package(const char* package, Status* s) {
return upb_filedef_setpackage(this, package, s);
}
inline const char* FileDef::phpprefix() const {
return upb_filedef_phpprefix(this);
}
inline bool FileDef::set_phpprefix(const char* phpprefix, Status* s) {
return upb_filedef_setphpprefix(this, phpprefix, s);
}
inline const char* FileDef::phpnamespace() const {
return upb_filedef_phpnamespace(this);
}
inline bool FileDef::set_phpnamespace(const char* phpnamespace, Status* s) {
return upb_filedef_setphpnamespace(this, phpnamespace, s);
}
inline int FileDef::def_count() const {
return upb_filedef_defcount(this);
}
inline const Def* FileDef::def(int index) const {
return upb_filedef_def(this, index);
}
inline Def* FileDef::def(int index) {
return const_cast<Def*>(upb_filedef_def(this, index));
}
inline int FileDef::dependency_count() const {
return upb_filedef_depcount(this);
}
inline const FileDef* FileDef::dependency(int index) const {
return upb_filedef_dep(this, index);
}
inline bool FileDef::AddDef(Def* def, Status* s) {
return upb_filedef_adddef(this, def, NULL, s);
}
inline bool FileDef::AddMessage(MessageDef* m, Status* s) {
return upb_filedef_addmsg(this, m, NULL, s);
}
inline bool FileDef::AddEnum(EnumDef* e, Status* s) {
return upb_filedef_addenum(this, e, NULL, s);
}
inline bool FileDef::AddExtension(FieldDef* f, Status* s) {
return upb_filedef_addext(this, f, NULL, s);
}
inline bool FileDef::AddDependency(const FileDef* file) {
return upb_filedef_adddep(this, file);
}
} /* namespace upb */
#endif
#endif /* UPB_DEF_H_ */
/*
** upb::Handlers (upb_handlers)
**
** A upb_handlers is like a virtual table for a upb_msgdef. Each field of the
** message can have associated functions that will be called when we are
** parsing or visiting a stream of data. This is similar to how handlers work
** in SAX (the Simple API for XML).
**
** The handlers have no idea where the data is coming from, so a single set of
** handlers could be used with two completely different data sources (for
** example, a parser and a visitor over in-memory objects). This decoupling is
** the most important feature of upb, because it allows parsers and serializers
** to be highly reusable.
**
** This is a mixed C/C++ interface that offers a full API to both languages.
** See the top-level README for more information.
*/
#ifndef UPB_HANDLERS_H
#define UPB_HANDLERS_H
#ifdef __cplusplus
namespace upb {
class BufferHandle;
class BytesHandler;
class HandlerAttributes;
class Handlers;
template <class T> class Handler;
template <class T> struct CanonicalType;
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::BufferHandle, upb_bufhandle)
UPB_DECLARE_TYPE(upb::BytesHandler, upb_byteshandler)
UPB_DECLARE_TYPE(upb::HandlerAttributes, upb_handlerattr)
UPB_DECLARE_DERIVED_TYPE(upb::Handlers, upb::RefCounted,
upb_handlers, upb_refcounted)
/* The maximum depth that the handler graph can have. This is a resource limit
* for the C stack since we sometimes need to recursively traverse the graph.
* Cycles are ok; the traversal will stop when it detects a cycle, but we must
* hit the cycle before the maximum depth is reached.
*
* If having a single static limit is too inflexible, we can add another variant
* of Handlers::Freeze that allows specifying this as a parameter. */
#define UPB_MAX_HANDLER_DEPTH 64
/* All the different types of handlers that can be registered.
* Only needed for the advanced functions in upb::Handlers. */
typedef enum {
UPB_HANDLER_INT32,
UPB_HANDLER_INT64,
UPB_HANDLER_UINT32,
UPB_HANDLER_UINT64,
UPB_HANDLER_FLOAT,
UPB_HANDLER_DOUBLE,
UPB_HANDLER_BOOL,
UPB_HANDLER_STARTSTR,
UPB_HANDLER_STRING,
UPB_HANDLER_ENDSTR,
UPB_HANDLER_STARTSUBMSG,
UPB_HANDLER_ENDSUBMSG,
UPB_HANDLER_STARTSEQ,
UPB_HANDLER_ENDSEQ
} upb_handlertype_t;
#define UPB_HANDLER_MAX (UPB_HANDLER_ENDSEQ+1)
#define UPB_BREAK NULL
/* A convenient definition for when no closure is needed. */
extern char _upb_noclosure;
#define UPB_NO_CLOSURE &_upb_noclosure
/* A selector refers to a specific field handler in the Handlers object
* (for example: the STARTSUBMSG handler for field "field15"). */
typedef int32_t upb_selector_t;
UPB_BEGIN_EXTERN_C
/* Forward-declares for C inline accessors. We need to declare these here
* so we can "friend" them in the class declarations in C++. */
UPB_INLINE upb_func *upb_handlers_gethandler(const upb_handlers *h,
upb_selector_t s);
UPB_INLINE const void *upb_handlerattr_handlerdata(const upb_handlerattr *attr);
UPB_INLINE const void *upb_handlers_gethandlerdata(const upb_handlers *h,
upb_selector_t s);
UPB_INLINE void upb_bufhandle_init(upb_bufhandle *h);
UPB_INLINE void upb_bufhandle_setobj(upb_bufhandle *h, const void *obj,
const void *type);
UPB_INLINE void upb_bufhandle_setbuf(upb_bufhandle *h, const char *buf,
size_t ofs);
UPB_INLINE const void *upb_bufhandle_obj(const upb_bufhandle *h);
UPB_INLINE const void *upb_bufhandle_objtype(const upb_bufhandle *h);
UPB_INLINE const char *upb_bufhandle_buf(const upb_bufhandle *h);
UPB_END_EXTERN_C
/* Static selectors for upb::Handlers. */
#define UPB_STARTMSG_SELECTOR 0
#define UPB_ENDMSG_SELECTOR 1
#define UPB_UNKNOWN_SELECTOR 2
#define UPB_STATIC_SELECTOR_COUNT 3
/* Static selectors for upb::BytesHandler. */
#define UPB_STARTSTR_SELECTOR 0
#define UPB_STRING_SELECTOR 1
#define UPB_ENDSTR_SELECTOR 2
typedef void upb_handlerfree(void *d);
#ifdef __cplusplus
/* A set of attributes that accompanies a handler's function pointer. */
class upb::HandlerAttributes {
public:
HandlerAttributes();
~HandlerAttributes();
/* Sets the handler data that will be passed as the second parameter of the
* handler. To free this pointer when the handlers are freed, call
* Handlers::AddCleanup(). */
bool SetHandlerData(const void *handler_data);
const void* handler_data() const;
/* Use this to specify the type of the closure. This will be checked against
* all other closure types for handler that use the same closure.
* Registration will fail if this does not match all other non-NULL closure
* types. */
bool SetClosureType(const void *closure_type);
const void* closure_type() const;
/* Use this to specify the type of the returned closure. Only used for
* Start*{String,SubMessage,Sequence} handlers. This must match the closure
* type of any handlers that use it (for example, the StringBuf handler must
* match the closure returned from StartString). */
bool SetReturnClosureType(const void *return_closure_type);
const void* return_closure_type() const;
/* Set to indicate that the handler always returns "ok" (either "true" or a
* non-NULL closure). This is a hint that can allow code generators to
* generate more efficient code. */
bool SetAlwaysOk(bool always_ok);
bool always_ok() const;
private:
friend UPB_INLINE const void * ::upb_handlerattr_handlerdata(
const upb_handlerattr *attr);
#else
struct upb_handlerattr {
#endif
const void *handler_data_;
const void *closure_type_;
const void *return_closure_type_;
bool alwaysok_;
};
#define UPB_HANDLERATTR_INITIALIZER {NULL, NULL, NULL, false}
typedef struct {
upb_func *func;
/* It is wasteful to include the entire attributes here:
*
* * Some of the information is redundant (like storing the closure type
* separately for each handler that must match).
* * Some of the info is only needed prior to freeze() (like closure types).
* * alignment padding wastes a lot of space for alwaysok_.
*
* If/when the size and locality of handlers is an issue, we can optimize this
* not to store the entire attr like this. We do not expose the table's
* layout to allow this optimization in the future. */
upb_handlerattr attr;
} upb_handlers_tabent;
#ifdef __cplusplus
/* Extra information about a buffer that is passed to a StringBuf handler.
* TODO(haberman): allow the handle to be pinned so that it will outlive
* the handler invocation. */
class upb::BufferHandle {
public:
BufferHandle();
~BufferHandle();
/* The beginning of the buffer. This may be different than the pointer
* passed to a StringBuf handler because the handler may receive data
* that is from the middle or end of a larger buffer. */
const char* buffer() const;
/* The offset within the attached object where this buffer begins. Only
* meaningful if there is an attached object. */
size_t object_offset() const;
/* Note that object_offset is the offset of "buf" within the attached
* object. */
void SetBuffer(const char* buf, size_t object_offset);
/* The BufferHandle can have an "attached object", which can be used to
* tunnel through a pointer to the buffer's underlying representation. */
template <class T>
void SetAttachedObject(const T* obj);
/* Returns NULL if the attached object is not of this type. */
template <class T>
const T* GetAttachedObject() const;
private:
friend UPB_INLINE void ::upb_bufhandle_init(upb_bufhandle *h);
friend UPB_INLINE void ::upb_bufhandle_setobj(upb_bufhandle *h,
const void *obj,
const void *type);
friend UPB_INLINE void ::upb_bufhandle_setbuf(upb_bufhandle *h,
const char *buf, size_t ofs);
friend UPB_INLINE const void* ::upb_bufhandle_obj(const upb_bufhandle *h);
friend UPB_INLINE const void* ::upb_bufhandle_objtype(
const upb_bufhandle *h);
friend UPB_INLINE const char* ::upb_bufhandle_buf(const upb_bufhandle *h);
#else
struct upb_bufhandle {
#endif
const char *buf_;
const void *obj_;
const void *objtype_;
size_t objofs_;
};
#ifdef __cplusplus
/* A upb::Handlers object represents the set of handlers associated with a
* message in the graph of messages. You can think of it as a big virtual
* table with functions corresponding to all the events that can fire while
* parsing or visiting a message of a specific type.
*
* Any handlers that are not set behave as if they had successfully consumed
* the value. Any unset Start* handlers will propagate their closure to the
* inner frame.
*
* The easiest way to create the *Handler objects needed by the Set* methods is
* with the UpbBind() and UpbMakeHandler() macros; see below. */
class upb::Handlers {
public:
typedef upb_selector_t Selector;
typedef upb_handlertype_t Type;
typedef Handler<void *(*)(void *, const void *)> StartFieldHandler;
typedef Handler<bool (*)(void *, const void *)> EndFieldHandler;
typedef Handler<bool (*)(void *, const void *)> StartMessageHandler;
typedef Handler<bool (*)(void *, const void *, Status*)> EndMessageHandler;
typedef Handler<void *(*)(void *, const void *, size_t)> StartStringHandler;
typedef Handler<size_t (*)(void *, const void *, const char *, size_t,
const BufferHandle *)> StringHandler;
template <class T> struct ValueHandler {
typedef Handler<bool(*)(void *, const void *, T)> H;
};
typedef ValueHandler<int32_t>::H Int32Handler;
typedef ValueHandler<int64_t>::H Int64Handler;
typedef ValueHandler<uint32_t>::H UInt32Handler;
typedef ValueHandler<uint64_t>::H UInt64Handler;
typedef ValueHandler<float>::H FloatHandler;
typedef ValueHandler<double>::H DoubleHandler;
typedef ValueHandler<bool>::H BoolHandler;
/* Any function pointer can be converted to this and converted back to its
* correct type. */
typedef void GenericFunction();
typedef void HandlersCallback(const void *closure, upb_handlers *h);
/* Returns a new handlers object for the given frozen msgdef.
* Returns NULL if memory allocation failed. */
static reffed_ptr<Handlers> New(const MessageDef *m);
/* Convenience function for registering a graph of handlers that mirrors the
* graph of msgdefs for some message. For "m" and all its children a new set
* of handlers will be created and the given callback will be invoked,
* allowing the client to register handlers for this message. Note that any
* subhandlers set by the callback will be overwritten. */
static reffed_ptr<const Handlers> NewFrozen(const MessageDef *m,
HandlersCallback *callback,
const void *closure);
/* Functionality from upb::RefCounted. */
UPB_REFCOUNTED_CPPMETHODS
/* All handler registration functions return bool to indicate success or
* failure; details about failures are stored in this status object. If a
* failure does occur, it must be cleared before the Handlers are frozen,
* otherwise the freeze() operation will fail. The functions may *only* be
* used while the Handlers are mutable. */
const Status* status();
void ClearError();
/* Call to freeze these Handlers. Requires that any SubHandlers are already
* frozen. For cycles, you must use the static version below and freeze the
* whole graph at once. */
bool Freeze(Status* s);
/* Freezes the given set of handlers. You may not freeze a handler without
* also freezing any handlers they point to. */
static bool Freeze(Handlers*const* handlers, int n, Status* s);
static bool Freeze(const std::vector<Handlers*>& handlers, Status* s);
/* Returns the msgdef associated with this handlers object. */
const MessageDef* message_def() const;
/* Adds the given pointer and function to the list of cleanup functions that
* will be run when these handlers are freed. If this pointer has previously
* been registered, the function returns false and does nothing. */
bool AddCleanup(void *ptr, upb_handlerfree *cleanup);
/* Sets the startmsg handler for the message, which is defined as follows:
*
* bool startmsg(MyType* closure) {
* // Called when the message begins. Returns true if processing should
* // continue.
* return true;
* }
*/
bool SetStartMessageHandler(const StartMessageHandler& handler);
/* Sets the endmsg handler for the message, which is defined as follows:
*
* bool endmsg(MyType* closure, upb_status *status) {
* // Called when processing of this message ends, whether in success or
* // failure. "status" indicates the final status of processing, and
* // can also be modified in-place to update the final status.
* }
*/
bool SetEndMessageHandler(const EndMessageHandler& handler);
/* Sets the value handler for the given field, which is defined as follows
* (this is for an int32 field; other field types will pass their native
* C/C++ type for "val"):
*
* bool OnValue(MyClosure* c, const MyHandlerData* d, int32_t val) {
* // Called when the field's value is encountered. "d" contains
* // whatever data was bound to this field when it was registered.
* // Returns true if processing should continue.
* return true;
* }
*
* handers->SetInt32Handler(f, UpbBind(OnValue, new MyHandlerData(...)));
*
* The value type must exactly match f->type().
* For example, a handler that takes an int32_t parameter may only be used for
* fields of type UPB_TYPE_INT32 and UPB_TYPE_ENUM.
*
* Returns false if the handler failed to register; in this case the cleanup
* handler (if any) will be called immediately.
*/
bool SetInt32Handler (const FieldDef* f, const Int32Handler& h);
bool SetInt64Handler (const FieldDef* f, const Int64Handler& h);
bool SetUInt32Handler(const FieldDef* f, const UInt32Handler& h);
bool SetUInt64Handler(const FieldDef* f, const UInt64Handler& h);
bool SetFloatHandler (const FieldDef* f, const FloatHandler& h);
bool SetDoubleHandler(const FieldDef* f, const DoubleHandler& h);
bool SetBoolHandler (const FieldDef* f, const BoolHandler& h);
/* Like the previous, but templated on the type on the value (ie. int32).
* This is mostly useful to call from other templates. To call this you must
* specify the template parameter explicitly, ie:
* h->SetValueHandler<T>(f, UpbBind(MyHandler<T>, MyData)); */
template <class T>
bool SetValueHandler(
const FieldDef *f,
const typename ValueHandler<typename CanonicalType<T>::Type>::H& handler);
/* Sets handlers for a string field, which are defined as follows:
*
* MySubClosure* startstr(MyClosure* c, const MyHandlerData* d,
* size_t size_hint) {
* // Called when a string value begins. The return value indicates the
* // closure for the string. "size_hint" indicates the size of the
* // string if it is known, however if the string is length-delimited
* // and the end-of-string is not available size_hint will be zero.
* // This case is indistinguishable from the case where the size is
* // known to be zero.
* //
* // TODO(haberman): is it important to distinguish these cases?
* // If we had ssize_t as a type we could make -1 "unknown", but
* // ssize_t is POSIX (not ANSI) and therefore less portable.
* // In practice I suspect it won't be important to distinguish.
* return closure;
* }
*
* size_t str(MyClosure* closure, const MyHandlerData* d,
* const char *str, size_t len) {
* // Called for each buffer of string data; the multiple physical buffers
* // are all part of the same logical string. The return value indicates
* // how many bytes were consumed. If this number is less than "len",
* // this will also indicate that processing should be halted for now,
* // like returning false or UPB_BREAK from any other callback. If
* // number is greater than "len", the excess bytes will be skipped over
* // and not passed to the callback.
* return len;
* }
*
* bool endstr(MyClosure* c, const MyHandlerData* d) {
* // Called when a string value ends. Return value indicates whether
* // processing should continue.
* return true;
* }
*/
bool SetStartStringHandler(const FieldDef* f, const StartStringHandler& h);
bool SetStringHandler(const FieldDef* f, const StringHandler& h);
bool SetEndStringHandler(const FieldDef* f, const EndFieldHandler& h);
/* Sets the startseq handler, which is defined as follows:
*
* MySubClosure *startseq(MyClosure* c, const MyHandlerData* d) {
* // Called when a sequence (repeated field) begins. The returned
* // pointer indicates the closure for the sequence (or UPB_BREAK
* // to interrupt processing).
* return closure;
* }
*
* h->SetStartSequenceHandler(f, UpbBind(startseq, new MyHandlerData(...)));
*
* Returns "false" if "f" does not belong to this message or is not a
* repeated field.
*/
bool SetStartSequenceHandler(const FieldDef* f, const StartFieldHandler& h);
/* Sets the startsubmsg handler for the given field, which is defined as
* follows:
*
* MySubClosure* startsubmsg(MyClosure* c, const MyHandlerData* d) {
* // Called when a submessage begins. The returned pointer indicates the
* // closure for the sequence (or UPB_BREAK to interrupt processing).
* return closure;
* }
*
* h->SetStartSubMessageHandler(f, UpbBind(startsubmsg,
* new MyHandlerData(...)));
*
* Returns "false" if "f" does not belong to this message or is not a
* submessage/group field.
*/
bool SetStartSubMessageHandler(const FieldDef* f, const StartFieldHandler& h);
/* Sets the endsubmsg handler for the given field, which is defined as
* follows:
*
* bool endsubmsg(MyClosure* c, const MyHandlerData* d) {
* // Called when a submessage ends. Returns true to continue processing.
* return true;
* }
*
* Returns "false" if "f" does not belong to this message or is not a
* submessage/group field.
*/
bool SetEndSubMessageHandler(const FieldDef *f, const EndFieldHandler &h);
/* Starts the endsubseq handler for the given field, which is defined as
* follows:
*
* bool endseq(MyClosure* c, const MyHandlerData* d) {
* // Called when a sequence ends. Returns true continue processing.
* return true;
* }
*
* Returns "false" if "f" does not belong to this message or is not a
* repeated field.
*/
bool SetEndSequenceHandler(const FieldDef* f, const EndFieldHandler& h);
/* Sets or gets the object that specifies handlers for the given field, which
* must be a submessage or group. Returns NULL if no handlers are set. */
bool SetSubHandlers(const FieldDef* f, const Handlers* sub);
const Handlers* GetSubHandlers(const FieldDef* f) const;
/* Equivalent to GetSubHandlers, but takes the STARTSUBMSG selector for the
* field. */
const Handlers* GetSubHandlers(Selector startsubmsg) const;
/* A selector refers to a specific field handler in the Handlers object
* (for example: the STARTSUBMSG handler for field "field15").
* On success, returns true and stores the selector in "s".
* If the FieldDef or Type are invalid, returns false.
* The returned selector is ONLY valid for Handlers whose MessageDef
* contains this FieldDef. */
static bool GetSelector(const FieldDef* f, Type type, Selector* s);
/* Given a START selector of any kind, returns the corresponding END selector. */
static Selector GetEndSelector(Selector start_selector);
/* Returns the function pointer for this handler. It is the client's
* responsibility to cast to the correct function type before calling it. */
GenericFunction* GetHandler(Selector selector);
/* Sets the given attributes to the attributes for this selector. */
bool GetAttributes(Selector selector, HandlerAttributes* attr);
/* Returns the handler data that was registered with this handler. */
const void* GetHandlerData(Selector selector);
/* Could add any of the following functions as-needed, with some minor
* implementation changes:
*
* const FieldDef* GetFieldDef(Selector selector);
* static bool IsSequence(Selector selector); */
private:
UPB_DISALLOW_POD_OPS(Handlers, upb::Handlers)
friend UPB_INLINE GenericFunction *::upb_handlers_gethandler(
const upb_handlers *h, upb_selector_t s);
friend UPB_INLINE const void *::upb_handlers_gethandlerdata(
const upb_handlers *h, upb_selector_t s);
#else
struct upb_handlers {
#endif
upb_refcounted base;
const upb_msgdef *msg;
const upb_handlers **sub;
const void *top_closure_type;
upb_inttable cleanup_;
upb_status status_; /* Used only when mutable. */
upb_handlers_tabent table[1]; /* Dynamically-sized field handler array. */
};
#ifdef __cplusplus
namespace upb {
/* Convenience macros for creating a Handler object that is wrapped with a
* type-safe wrapper function that converts the "void*" parameters/returns
* of the underlying C API into nice C++ function.
*
* Sample usage:
* void OnValue1(MyClosure* c, const MyHandlerData* d, int32_t val) {
* // do stuff ...
* }
*
* // Handler that doesn't need any data bound to it.
* void OnValue2(MyClosure* c, int32_t val) {
* // do stuff ...
* }
*
* // Handler that returns bool so it can return failure if necessary.
* bool OnValue3(MyClosure* c, int32_t val) {
* // do stuff ...
* return ok;
* }
*
* // Member function handler.
* class MyClosure {
* public:
* void OnValue(int32_t val) {
* // do stuff ...
* }
* };
*
* // Takes ownership of the MyHandlerData.
* handlers->SetInt32Handler(f1, UpbBind(OnValue1, new MyHandlerData(...)));
* handlers->SetInt32Handler(f2, UpbMakeHandler(OnValue2));
* handlers->SetInt32Handler(f1, UpbMakeHandler(OnValue3));
* handlers->SetInt32Handler(f2, UpbMakeHandler(&MyClosure::OnValue));
*/
#ifdef UPB_CXX11
/* In C++11, the "template" disambiguator can appear even outside templates,
* so all calls can safely use this pair of macros. */
#define UpbMakeHandler(f) upb::MatchFunc(f).template GetFunc<f>()
/* We have to be careful to only evaluate "d" once. */
#define UpbBind(f, d) upb::MatchFunc(f).template GetFunc<f>((d))
#else
/* Prior to C++11, the "template" disambiguator may only appear inside a
* template, so the regular macro must not use "template" */
#define UpbMakeHandler(f) upb::MatchFunc(f).GetFunc<f>()
#define UpbBind(f, d) upb::MatchFunc(f).GetFunc<f>((d))
#endif /* UPB_CXX11 */
/* This macro must be used in C++98 for calls from inside a template. But we
* define this variant in all cases; code that wants to be compatible with both
* C++98 and C++11 should always use this macro when calling from a template. */
#define UpbMakeHandlerT(f) upb::MatchFunc(f).template GetFunc<f>()
/* We have to be careful to only evaluate "d" once. */
#define UpbBindT(f, d) upb::MatchFunc(f).template GetFunc<f>((d))
/* Handler: a struct that contains the (handler, data, deleter) tuple that is
* used to register all handlers. Users can Make() these directly but it's
* more convenient to use the UpbMakeHandler/UpbBind macros above. */
template <class T> class Handler {
public:
/* The underlying, handler function signature that upb uses internally. */
typedef T FuncPtr;
/* Intentionally implicit. */
template <class F> Handler(F func);
~Handler();
private:
void AddCleanup(Handlers* h) const {
if (cleanup_func_) {
bool ok = h->AddCleanup(cleanup_data_, cleanup_func_);
UPB_ASSERT(ok);
}
}
UPB_DISALLOW_COPY_AND_ASSIGN(Handler)
friend class Handlers;
FuncPtr handler_;
mutable HandlerAttributes attr_;
mutable bool registered_;
void *cleanup_data_;
upb_handlerfree *cleanup_func_;
};
} /* namespace upb */
#endif /* __cplusplus */
UPB_BEGIN_EXTERN_C
/* Native C API. */
/* Handler function typedefs. */
typedef bool upb_unknown_handlerfunc(void *c, const void *hd, const char *buf,
size_t n);
typedef bool upb_startmsg_handlerfunc(void *c, const void*);
typedef bool upb_endmsg_handlerfunc(void *c, const void *, upb_status *status);
typedef void* upb_startfield_handlerfunc(void *c, const void *hd);
typedef bool upb_endfield_handlerfunc(void *c, const void *hd);
typedef bool upb_int32_handlerfunc(void *c, const void *hd, int32_t val);
typedef bool upb_int64_handlerfunc(void *c, const void *hd, int64_t val);
typedef bool upb_uint32_handlerfunc(void *c, const void *hd, uint32_t val);
typedef bool upb_uint64_handlerfunc(void *c, const void *hd, uint64_t val);
typedef bool upb_float_handlerfunc(void *c, const void *hd, float val);
typedef bool upb_double_handlerfunc(void *c, const void *hd, double val);
typedef bool upb_bool_handlerfunc(void *c, const void *hd, bool val);
typedef void *upb_startstr_handlerfunc(void *c, const void *hd,
size_t size_hint);
typedef size_t upb_string_handlerfunc(void *c, const void *hd, const char *buf,
size_t n, const upb_bufhandle* handle);
/* upb_bufhandle */
size_t upb_bufhandle_objofs(const upb_bufhandle *h);
/* upb_handlerattr */
void upb_handlerattr_init(upb_handlerattr *attr);
void upb_handlerattr_uninit(upb_handlerattr *attr);
bool upb_handlerattr_sethandlerdata(upb_handlerattr *attr, const void *hd);
bool upb_handlerattr_setclosuretype(upb_handlerattr *attr, const void *type);
const void *upb_handlerattr_closuretype(const upb_handlerattr *attr);
bool upb_handlerattr_setreturnclosuretype(upb_handlerattr *attr,
const void *type);
const void *upb_handlerattr_returnclosuretype(const upb_handlerattr *attr);
bool upb_handlerattr_setalwaysok(upb_handlerattr *attr, bool alwaysok);
bool upb_handlerattr_alwaysok(const upb_handlerattr *attr);
UPB_INLINE const void *upb_handlerattr_handlerdata(
const upb_handlerattr *attr) {
return attr->handler_data_;
}
/* upb_handlers */
typedef void upb_handlers_callback(const void *closure, upb_handlers *h);
upb_handlers *upb_handlers_new(const upb_msgdef *m,
const void *owner);
const upb_handlers *upb_handlers_newfrozen(const upb_msgdef *m,
const void *owner,
upb_handlers_callback *callback,
const void *closure);
/* Include refcounted methods like upb_handlers_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_handlers, upb_handlers_upcast)
const upb_status *upb_handlers_status(upb_handlers *h);
void upb_handlers_clearerr(upb_handlers *h);
const upb_msgdef *upb_handlers_msgdef(const upb_handlers *h);
bool upb_handlers_addcleanup(upb_handlers *h, void *p, upb_handlerfree *hfree);
bool upb_handlers_setunknown(upb_handlers *h, upb_unknown_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setstartmsg(upb_handlers *h, upb_startmsg_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setendmsg(upb_handlers *h, upb_endmsg_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setint32(upb_handlers *h, const upb_fielddef *f,
upb_int32_handlerfunc *func, upb_handlerattr *attr);
bool upb_handlers_setint64(upb_handlers *h, const upb_fielddef *f,
upb_int64_handlerfunc *func, upb_handlerattr *attr);
bool upb_handlers_setuint32(upb_handlers *h, const upb_fielddef *f,
upb_uint32_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setuint64(upb_handlers *h, const upb_fielddef *f,
upb_uint64_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setfloat(upb_handlers *h, const upb_fielddef *f,
upb_float_handlerfunc *func, upb_handlerattr *attr);
bool upb_handlers_setdouble(upb_handlers *h, const upb_fielddef *f,
upb_double_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setbool(upb_handlers *h, const upb_fielddef *f,
upb_bool_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setstartstr(upb_handlers *h, const upb_fielddef *f,
upb_startstr_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setstring(upb_handlers *h, const upb_fielddef *f,
upb_string_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setendstr(upb_handlers *h, const upb_fielddef *f,
upb_endfield_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setstartseq(upb_handlers *h, const upb_fielddef *f,
upb_startfield_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setstartsubmsg(upb_handlers *h, const upb_fielddef *f,
upb_startfield_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setendsubmsg(upb_handlers *h, const upb_fielddef *f,
upb_endfield_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setendseq(upb_handlers *h, const upb_fielddef *f,
upb_endfield_handlerfunc *func,
upb_handlerattr *attr);
bool upb_handlers_setsubhandlers(upb_handlers *h, const upb_fielddef *f,
const upb_handlers *sub);
const upb_handlers *upb_handlers_getsubhandlers(const upb_handlers *h,
const upb_fielddef *f);
const upb_handlers *upb_handlers_getsubhandlers_sel(const upb_handlers *h,
upb_selector_t sel);
UPB_INLINE upb_func *upb_handlers_gethandler(const upb_handlers *h,
upb_selector_t s) {
return (upb_func *)h->table[s].func;
}
bool upb_handlers_getattr(const upb_handlers *h, upb_selector_t s,
upb_handlerattr *attr);
UPB_INLINE const void *upb_handlers_gethandlerdata(const upb_handlers *h,
upb_selector_t s) {
return upb_handlerattr_handlerdata(&h->table[s].attr);
}
#ifdef __cplusplus
/* Handler types for single fields.
* Right now we only have one for TYPE_BYTES but ones for other types
* should follow.
*
* These follow the same handlers protocol for fields of a message. */
class upb::BytesHandler {
public:
BytesHandler();
~BytesHandler();
#else
struct upb_byteshandler {
#endif
upb_handlers_tabent table[3];
};
void upb_byteshandler_init(upb_byteshandler *h);
/* Caller must ensure that "d" outlives the handlers.
* TODO(haberman): should this have a "freeze" operation? It's not necessary
* for memory management, but could be useful to force immutability and provide
* a convenient moment to verify that all registration succeeded. */
bool upb_byteshandler_setstartstr(upb_byteshandler *h,
upb_startstr_handlerfunc *func, void *d);
bool upb_byteshandler_setstring(upb_byteshandler *h,
upb_string_handlerfunc *func, void *d);
bool upb_byteshandler_setendstr(upb_byteshandler *h,
upb_endfield_handlerfunc *func, void *d);
/* "Static" methods */
bool upb_handlers_freeze(upb_handlers *const *handlers, int n, upb_status *s);
upb_handlertype_t upb_handlers_getprimitivehandlertype(const upb_fielddef *f);
bool upb_handlers_getselector(const upb_fielddef *f, upb_handlertype_t type,
upb_selector_t *s);
UPB_INLINE upb_selector_t upb_handlers_getendselector(upb_selector_t start) {
return start + 1;
}
/* Internal-only. */
uint32_t upb_handlers_selectorbaseoffset(const upb_fielddef *f);
uint32_t upb_handlers_selectorcount(const upb_fielddef *f);
UPB_END_EXTERN_C
/*
** Inline definitions for handlers.h, which are particularly long and a bit
** tricky.
*/
#ifndef UPB_HANDLERS_INL_H_
#define UPB_HANDLERS_INL_H_
#include <limits.h>
/* C inline methods. */
/* upb_bufhandle */
UPB_INLINE void upb_bufhandle_init(upb_bufhandle *h) {
h->obj_ = NULL;
h->objtype_ = NULL;
h->buf_ = NULL;
h->objofs_ = 0;
}
UPB_INLINE void upb_bufhandle_uninit(upb_bufhandle *h) {
UPB_UNUSED(h);
}
UPB_INLINE void upb_bufhandle_setobj(upb_bufhandle *h, const void *obj,
const void *type) {
h->obj_ = obj;
h->objtype_ = type;
}
UPB_INLINE void upb_bufhandle_setbuf(upb_bufhandle *h, const char *buf,
size_t ofs) {
h->buf_ = buf;
h->objofs_ = ofs;
}
UPB_INLINE const void *upb_bufhandle_obj(const upb_bufhandle *h) {
return h->obj_;
}
UPB_INLINE const void *upb_bufhandle_objtype(const upb_bufhandle *h) {
return h->objtype_;
}
UPB_INLINE const char *upb_bufhandle_buf(const upb_bufhandle *h) {
return h->buf_;
}
#ifdef __cplusplus
/* Type detection and typedefs for integer types.
* For platforms where there are multiple 32-bit or 64-bit types, we need to be
* able to enumerate them so we can properly create overloads for all variants.
*
* If any platform existed where there were three integer types with the same
* size, this would have to become more complicated. For example, short, int,
* and long could all be 32-bits. Even more diabolically, short, int, long,
* and long long could all be 64 bits and still be standard-compliant.
* However, few platforms are this strange, and it's unlikely that upb will be
* used on the strangest ones. */
/* Can't count on stdint.h limits like INT32_MAX, because in C++ these are
* only defined when __STDC_LIMIT_MACROS are defined before the *first* include
* of stdint.h. We can't guarantee that someone else didn't include these first
* without defining __STDC_LIMIT_MACROS. */
#define UPB_INT32_MAX 0x7fffffffLL
#define UPB_INT32_MIN (-UPB_INT32_MAX - 1)
#define UPB_INT64_MAX 0x7fffffffffffffffLL
#define UPB_INT64_MIN (-UPB_INT64_MAX - 1)
#if INT_MAX == UPB_INT32_MAX && INT_MIN == UPB_INT32_MIN
#define UPB_INT_IS_32BITS 1
#endif
#if LONG_MAX == UPB_INT32_MAX && LONG_MIN == UPB_INT32_MIN
#define UPB_LONG_IS_32BITS 1
#endif
#if LONG_MAX == UPB_INT64_MAX && LONG_MIN == UPB_INT64_MIN
#define UPB_LONG_IS_64BITS 1
#endif
#if LLONG_MAX == UPB_INT64_MAX && LLONG_MIN == UPB_INT64_MIN
#define UPB_LLONG_IS_64BITS 1
#endif
/* We use macros instead of typedefs so we can undefine them later and avoid
* leaking them outside this header file. */
#if UPB_INT_IS_32BITS
#define UPB_INT32_T int
#define UPB_UINT32_T unsigned int
#if UPB_LONG_IS_32BITS
#define UPB_TWO_32BIT_TYPES 1
#define UPB_INT32ALT_T long
#define UPB_UINT32ALT_T unsigned long
#endif /* UPB_LONG_IS_32BITS */
#elif UPB_LONG_IS_32BITS /* && !UPB_INT_IS_32BITS */
#define UPB_INT32_T long
#define UPB_UINT32_T unsigned long
#endif /* UPB_INT_IS_32BITS */
#if UPB_LONG_IS_64BITS
#define UPB_INT64_T long
#define UPB_UINT64_T unsigned long
#if UPB_LLONG_IS_64BITS
#define UPB_TWO_64BIT_TYPES 1
#define UPB_INT64ALT_T long long
#define UPB_UINT64ALT_T unsigned long long
#endif /* UPB_LLONG_IS_64BITS */
#elif UPB_LLONG_IS_64BITS /* && !UPB_LONG_IS_64BITS */
#define UPB_INT64_T long long
#define UPB_UINT64_T unsigned long long
#endif /* UPB_LONG_IS_64BITS */
#undef UPB_INT32_MAX
#undef UPB_INT32_MIN
#undef UPB_INT64_MAX
#undef UPB_INT64_MIN
#undef UPB_INT_IS_32BITS
#undef UPB_LONG_IS_32BITS
#undef UPB_LONG_IS_64BITS
#undef UPB_LLONG_IS_64BITS
namespace upb {
typedef void CleanupFunc(void *ptr);
/* Template to remove "const" from "const T*" and just return "T*".
*
* We define a nonsense default because otherwise it will fail to instantiate as
* a function parameter type even in cases where we don't expect any caller to
* actually match the overload. */
class CouldntRemoveConst {};
template <class T> struct remove_constptr { typedef CouldntRemoveConst type; };
template <class T> struct remove_constptr<const T *> { typedef T *type; };
/* Template that we use below to remove a template specialization from
* consideration if it matches a specific type. */
template <class T, class U> struct disable_if_same { typedef void Type; };
template <class T> struct disable_if_same<T, T> {};
template <class T> void DeletePointer(void *p) { delete static_cast<T>(p); }
template <class T1, class T2>
struct FirstUnlessVoidOrBool {
typedef T1 value;
};
template <class T2>
struct FirstUnlessVoidOrBool<void, T2> {
typedef T2 value;
};
template <class T2>
struct FirstUnlessVoidOrBool<bool, T2> {
typedef T2 value;
};
template<class T, class U>
struct is_same {
static bool value;
};
template<class T>
struct is_same<T, T> {
static bool value;
};
template<class T, class U>
bool is_same<T, U>::value = false;
template<class T>
bool is_same<T, T>::value = true;
/* FuncInfo *******************************************************************/
/* Info about the user's original, pre-wrapped function. */
template <class C, class R = void>
struct FuncInfo {
/* The type of the closure that the function takes (its first param). */
typedef C Closure;
/* The return type. */
typedef R Return;
};
/* Func ***********************************************************************/
/* Func1, Func2, Func3: Template classes representing a function and its
* signature.
*
* Since the function is a template parameter, calling the function can be
* inlined at compile-time and does not require a function pointer at runtime.
* These functions are not bound to a handler data so have no data or cleanup
* handler. */
struct UnboundFunc {
CleanupFunc *GetCleanup() { return NULL; }
void *GetData() { return NULL; }
};
template <class R, class P1, R F(P1), class I>
struct Func1 : public UnboundFunc {
typedef R Return;
typedef I FuncInfo;
static R Call(P1 p1) { return F(p1); }
};
template <class R, class P1, class P2, R F(P1, P2), class I>
struct Func2 : public UnboundFunc {
typedef R Return;
typedef I FuncInfo;
static R Call(P1 p1, P2 p2) { return F(p1, p2); }
};
template <class R, class P1, class P2, class P3, R F(P1, P2, P3), class I>
struct Func3 : public UnboundFunc {
typedef R Return;
typedef I FuncInfo;
static R Call(P1 p1, P2 p2, P3 p3) { return F(p1, p2, p3); }
};
template <class R, class P1, class P2, class P3, class P4, R F(P1, P2, P3, P4),
class I>
struct Func4 : public UnboundFunc {
typedef R Return;
typedef I FuncInfo;
static R Call(P1 p1, P2 p2, P3 p3, P4 p4) { return F(p1, p2, p3, p4); }
};
template <class R, class P1, class P2, class P3, class P4, class P5,
R F(P1, P2, P3, P4, P5), class I>
struct Func5 : public UnboundFunc {
typedef R Return;
typedef I FuncInfo;
static R Call(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) {
return F(p1, p2, p3, p4, p5);
}
};
/* BoundFunc ******************************************************************/
/* BoundFunc2, BoundFunc3: Like Func2/Func3 except also contains a value that
* shall be bound to the function's second parameter.
*
* Note that the second parameter is a const pointer, but our stored bound value
* is non-const so we can free it when the handlers are destroyed. */
template <class T>
struct BoundFunc {
typedef typename remove_constptr<T>::type MutableP2;
explicit BoundFunc(MutableP2 data_) : data(data_) {}
CleanupFunc *GetCleanup() { return &DeletePointer<MutableP2>; }
MutableP2 GetData() { return data; }
MutableP2 data;
};
template <class R, class P1, class P2, R F(P1, P2), class I>
struct BoundFunc2 : public BoundFunc<P2> {
typedef BoundFunc<P2> Base;
typedef I FuncInfo;
explicit BoundFunc2(typename Base::MutableP2 arg) : Base(arg) {}
};
template <class R, class P1, class P2, class P3, R F(P1, P2, P3), class I>
struct BoundFunc3 : public BoundFunc<P2> {
typedef BoundFunc<P2> Base;
typedef I FuncInfo;
explicit BoundFunc3(typename Base::MutableP2 arg) : Base(arg) {}
};
template <class R, class P1, class P2, class P3, class P4, R F(P1, P2, P3, P4),
class I>
struct BoundFunc4 : public BoundFunc<P2> {
typedef BoundFunc<P2> Base;
typedef I FuncInfo;
explicit BoundFunc4(typename Base::MutableP2 arg) : Base(arg) {}
};
template <class R, class P1, class P2, class P3, class P4, class P5,
R F(P1, P2, P3, P4, P5), class I>
struct BoundFunc5 : public BoundFunc<P2> {
typedef BoundFunc<P2> Base;
typedef I FuncInfo;
explicit BoundFunc5(typename Base::MutableP2 arg) : Base(arg) {}
};
/* FuncSig ********************************************************************/
/* FuncSig1, FuncSig2, FuncSig3: template classes reflecting a function
* *signature*, but without a specific function attached.
*
* These classes contain member functions that can be invoked with a
* specific function to return a Func/BoundFunc class. */
template <class R, class P1>
struct FuncSig1 {
template <R F(P1)>
Func1<R, P1, F, FuncInfo<P1, R> > GetFunc() {
return Func1<R, P1, F, FuncInfo<P1, R> >();
}
};
template <class R, class P1, class P2>
struct FuncSig2 {
template <R F(P1, P2)>
Func2<R, P1, P2, F, FuncInfo<P1, R> > GetFunc() {
return Func2<R, P1, P2, F, FuncInfo<P1, R> >();
}
template <R F(P1, P2)>
BoundFunc2<R, P1, P2, F, FuncInfo<P1, R> > GetFunc(
typename remove_constptr<P2>::type param2) {
return BoundFunc2<R, P1, P2, F, FuncInfo<P1, R> >(param2);
}
};
template <class R, class P1, class P2, class P3>
struct FuncSig3 {
template <R F(P1, P2, P3)>
Func3<R, P1, P2, P3, F, FuncInfo<P1, R> > GetFunc() {
return Func3<R, P1, P2, P3, F, FuncInfo<P1, R> >();
}
template <R F(P1, P2, P3)>
BoundFunc3<R, P1, P2, P3, F, FuncInfo<P1, R> > GetFunc(
typename remove_constptr<P2>::type param2) {
return BoundFunc3<R, P1, P2, P3, F, FuncInfo<P1, R> >(param2);
}
};
template <class R, class P1, class P2, class P3, class P4>
struct FuncSig4 {
template <R F(P1, P2, P3, P4)>
Func4<R, P1, P2, P3, P4, F, FuncInfo<P1, R> > GetFunc() {
return Func4<R, P1, P2, P3, P4, F, FuncInfo<P1, R> >();
}
template <R F(P1, P2, P3, P4)>
BoundFunc4<R, P1, P2, P3, P4, F, FuncInfo<P1, R> > GetFunc(
typename remove_constptr<P2>::type param2) {
return BoundFunc4<R, P1, P2, P3, P4, F, FuncInfo<P1, R> >(param2);
}
};
template <class R, class P1, class P2, class P3, class P4, class P5>
struct FuncSig5 {
template <R F(P1, P2, P3, P4, P5)>
Func5<R, P1, P2, P3, P4, P5, F, FuncInfo<P1, R> > GetFunc() {
return Func5<R, P1, P2, P3, P4, P5, F, FuncInfo<P1, R> >();
}
template <R F(P1, P2, P3, P4, P5)>
BoundFunc5<R, P1, P2, P3, P4, P5, F, FuncInfo<P1, R> > GetFunc(
typename remove_constptr<P2>::type param2) {
return BoundFunc5<R, P1, P2, P3, P4, P5, F, FuncInfo<P1, R> >(param2);
}
};
/* Overloaded template function that can construct the appropriate FuncSig*
* class given a function pointer by deducing the template parameters. */
template <class R, class P1>
inline FuncSig1<R, P1> MatchFunc(R (*f)(P1)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return FuncSig1<R, P1>();
}
template <class R, class P1, class P2>
inline FuncSig2<R, P1, P2> MatchFunc(R (*f)(P1, P2)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return FuncSig2<R, P1, P2>();
}
template <class R, class P1, class P2, class P3>
inline FuncSig3<R, P1, P2, P3> MatchFunc(R (*f)(P1, P2, P3)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return FuncSig3<R, P1, P2, P3>();
}
template <class R, class P1, class P2, class P3, class P4>
inline FuncSig4<R, P1, P2, P3, P4> MatchFunc(R (*f)(P1, P2, P3, P4)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return FuncSig4<R, P1, P2, P3, P4>();
}
template <class R, class P1, class P2, class P3, class P4, class P5>
inline FuncSig5<R, P1, P2, P3, P4, P5> MatchFunc(R (*f)(P1, P2, P3, P4, P5)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return FuncSig5<R, P1, P2, P3, P4, P5>();
}
/* MethodSig ******************************************************************/
/* CallMethod*: a function template that calls a given method. */
template <class R, class C, R (C::*F)()>
R CallMethod0(C *obj) {
return ((*obj).*F)();
}
template <class R, class C, class P1, R (C::*F)(P1)>
R CallMethod1(C *obj, P1 arg1) {
return ((*obj).*F)(arg1);
}
template <class R, class C, class P1, class P2, R (C::*F)(P1, P2)>
R CallMethod2(C *obj, P1 arg1, P2 arg2) {
return ((*obj).*F)(arg1, arg2);
}
template <class R, class C, class P1, class P2, class P3, R (C::*F)(P1, P2, P3)>
R CallMethod3(C *obj, P1 arg1, P2 arg2, P3 arg3) {
return ((*obj).*F)(arg1, arg2, arg3);
}
template <class R, class C, class P1, class P2, class P3, class P4,
R (C::*F)(P1, P2, P3, P4)>
R CallMethod4(C *obj, P1 arg1, P2 arg2, P3 arg3, P4 arg4) {
return ((*obj).*F)(arg1, arg2, arg3, arg4);
}
/* MethodSig: like FuncSig, but for member functions.
*
* GetFunc() returns a normal FuncN object, so after calling GetFunc() no
* more logic is required to special-case methods. */
template <class R, class C>
struct MethodSig0 {
template <R (C::*F)()>
Func1<R, C *, CallMethod0<R, C, F>, FuncInfo<C *, R> > GetFunc() {
return Func1<R, C *, CallMethod0<R, C, F>, FuncInfo<C *, R> >();
}
};
template <class R, class C, class P1>
struct MethodSig1 {
template <R (C::*F)(P1)>
Func2<R, C *, P1, CallMethod1<R, C, P1, F>, FuncInfo<C *, R> > GetFunc() {
return Func2<R, C *, P1, CallMethod1<R, C, P1, F>, FuncInfo<C *, R> >();
}
template <R (C::*F)(P1)>
BoundFunc2<R, C *, P1, CallMethod1<R, C, P1, F>, FuncInfo<C *, R> > GetFunc(
typename remove_constptr<P1>::type param1) {
return BoundFunc2<R, C *, P1, CallMethod1<R, C, P1, F>, FuncInfo<C *, R> >(
param1);
}
};
template <class R, class C, class P1, class P2>
struct MethodSig2 {
template <R (C::*F)(P1, P2)>
Func3<R, C *, P1, P2, CallMethod2<R, C, P1, P2, F>, FuncInfo<C *, R> >
GetFunc() {
return Func3<R, C *, P1, P2, CallMethod2<R, C, P1, P2, F>,
FuncInfo<C *, R> >();
}
template <R (C::*F)(P1, P2)>
BoundFunc3<R, C *, P1, P2, CallMethod2<R, C, P1, P2, F>, FuncInfo<C *, R> >
GetFunc(typename remove_constptr<P1>::type param1) {
return BoundFunc3<R, C *, P1, P2, CallMethod2<R, C, P1, P2, F>,
FuncInfo<C *, R> >(param1);
}
};
template <class R, class C, class P1, class P2, class P3>
struct MethodSig3 {
template <R (C::*F)(P1, P2, P3)>
Func4<R, C *, P1, P2, P3, CallMethod3<R, C, P1, P2, P3, F>, FuncInfo<C *, R> >
GetFunc() {
return Func4<R, C *, P1, P2, P3, CallMethod3<R, C, P1, P2, P3, F>,
FuncInfo<C *, R> >();
}
template <R (C::*F)(P1, P2, P3)>
BoundFunc4<R, C *, P1, P2, P3, CallMethod3<R, C, P1, P2, P3, F>,
FuncInfo<C *, R> >
GetFunc(typename remove_constptr<P1>::type param1) {
return BoundFunc4<R, C *, P1, P2, P3, CallMethod3<R, C, P1, P2, P3, F>,
FuncInfo<C *, R> >(param1);
}
};
template <class R, class C, class P1, class P2, class P3, class P4>
struct MethodSig4 {
template <R (C::*F)(P1, P2, P3, P4)>
Func5<R, C *, P1, P2, P3, P4, CallMethod4<R, C, P1, P2, P3, P4, F>,
FuncInfo<C *, R> >
GetFunc() {
return Func5<R, C *, P1, P2, P3, P4, CallMethod4<R, C, P1, P2, P3, P4, F>,
FuncInfo<C *, R> >();
}
template <R (C::*F)(P1, P2, P3, P4)>
BoundFunc5<R, C *, P1, P2, P3, P4, CallMethod4<R, C, P1, P2, P3, P4, F>,
FuncInfo<C *, R> >
GetFunc(typename remove_constptr<P1>::type param1) {
return BoundFunc5<R, C *, P1, P2, P3, P4,
CallMethod4<R, C, P1, P2, P3, P4, F>, FuncInfo<C *, R> >(
param1);
}
};
template <class R, class C>
inline MethodSig0<R, C> MatchFunc(R (C::*f)()) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return MethodSig0<R, C>();
}
template <class R, class C, class P1>
inline MethodSig1<R, C, P1> MatchFunc(R (C::*f)(P1)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return MethodSig1<R, C, P1>();
}
template <class R, class C, class P1, class P2>
inline MethodSig2<R, C, P1, P2> MatchFunc(R (C::*f)(P1, P2)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return MethodSig2<R, C, P1, P2>();
}
template <class R, class C, class P1, class P2, class P3>
inline MethodSig3<R, C, P1, P2, P3> MatchFunc(R (C::*f)(P1, P2, P3)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return MethodSig3<R, C, P1, P2, P3>();
}
template <class R, class C, class P1, class P2, class P3, class P4>
inline MethodSig4<R, C, P1, P2, P3, P4> MatchFunc(R (C::*f)(P1, P2, P3, P4)) {
UPB_UNUSED(f); /* Only used for template parameter deduction. */
return MethodSig4<R, C, P1, P2, P3, P4>();
}
/* MaybeWrapReturn ************************************************************/
/* Template class that attempts to wrap the return value of the function so it
* matches the expected type. There are two main adjustments it may make:
*
* 1. If the function returns void, make it return the expected type and with
* a value that always indicates success.
* 2. If the function returns bool, make it return the expected type with a
* value that indicates success or failure.
*
* The "expected type" for return is:
* 1. void* for start handlers. If the closure parameter has a different type
* we will cast it to void* for the return in the success case.
* 2. size_t for string buffer handlers.
* 3. bool for everything else. */
/* Template parameters are FuncN type and desired return type. */
template <class F, class R, class Enable = void>
struct MaybeWrapReturn;
/* If the return type matches, return the given function unwrapped. */
template <class F>
struct MaybeWrapReturn<F, typename F::Return> {
typedef F Func;
};
/* Function wrapper that munges the return value from void to (bool)true. */
template <class P1, class P2, void F(P1, P2)>
bool ReturnTrue2(P1 p1, P2 p2) {
F(p1, p2);
return true;
}
template <class P1, class P2, class P3, void F(P1, P2, P3)>
bool ReturnTrue3(P1 p1, P2 p2, P3 p3) {
F(p1, p2, p3);
return true;
}
/* Function wrapper that munges the return value from void to (void*)arg1 */
template <class P1, class P2, void F(P1, P2)>
void *ReturnClosure2(P1 p1, P2 p2) {
F(p1, p2);
return p1;
}
template <class P1, class P2, class P3, void F(P1, P2, P3)>
void *ReturnClosure3(P1 p1, P2 p2, P3 p3) {
F(p1, p2, p3);
return p1;
}
/* Function wrapper that munges the return value from R to void*. */
template <class R, class P1, class P2, R F(P1, P2)>
void *CastReturnToVoidPtr2(P1 p1, P2 p2) {
return F(p1, p2);
}
template <class R, class P1, class P2, class P3, R F(P1, P2, P3)>
void *CastReturnToVoidPtr3(P1 p1, P2 p2, P3 p3) {
return F(p1, p2, p3);
}
/* Function wrapper that munges the return value from bool to void*. */
template <class P1, class P2, bool F(P1, P2)>
void *ReturnClosureOrBreak2(P1 p1, P2 p2) {
return F(p1, p2) ? p1 : UPB_BREAK;
}
template <class P1, class P2, class P3, bool F(P1, P2, P3)>
void *ReturnClosureOrBreak3(P1 p1, P2 p2, P3 p3) {
return F(p1, p2, p3) ? p1 : UPB_BREAK;
}
/* For the string callback, which takes five params, returns the size param. */
template <class P1, class P2,
void F(P1, P2, const char *, size_t, const BufferHandle *)>
size_t ReturnStringLen(P1 p1, P2 p2, const char *p3, size_t p4,
const BufferHandle *p5) {
F(p1, p2, p3, p4, p5);
return p4;
}
/* For the string callback, which takes five params, returns the size param or
* zero. */
template <class P1, class P2,
bool F(P1, P2, const char *, size_t, const BufferHandle *)>
size_t ReturnNOr0(P1 p1, P2 p2, const char *p3, size_t p4,
const BufferHandle *p5) {
return F(p1, p2, p3, p4, p5) ? p4 : 0;
}
/* If we have a function returning void but want a function returning bool, wrap
* it in a function that returns true. */
template <class P1, class P2, void F(P1, P2), class I>
struct MaybeWrapReturn<Func2<void, P1, P2, F, I>, bool> {
typedef Func2<bool, P1, P2, ReturnTrue2<P1, P2, F>, I> Func;
};
template <class P1, class P2, class P3, void F(P1, P2, P3), class I>
struct MaybeWrapReturn<Func3<void, P1, P2, P3, F, I>, bool> {
typedef Func3<bool, P1, P2, P3, ReturnTrue3<P1, P2, P3, F>, I> Func;
};
/* If our function returns void but we want one returning void*, wrap it in a
* function that returns the first argument. */
template <class P1, class P2, void F(P1, P2), class I>
struct MaybeWrapReturn<Func2<void, P1, P2, F, I>, void *> {
typedef Func2<void *, P1, P2, ReturnClosure2<P1, P2, F>, I> Func;
};
template <class P1, class P2, class P3, void F(P1, P2, P3), class I>
struct MaybeWrapReturn<Func3<void, P1, P2, P3, F, I>, void *> {
typedef Func3<void *, P1, P2, P3, ReturnClosure3<P1, P2, P3, F>, I> Func;
};
/* If our function returns R* but we want one returning void*, wrap it in a
* function that casts to void*. */
template <class R, class P1, class P2, R *F(P1, P2), class I>
struct MaybeWrapReturn<Func2<R *, P1, P2, F, I>, void *,
typename disable_if_same<R *, void *>::Type> {
typedef Func2<void *, P1, P2, CastReturnToVoidPtr2<R *, P1, P2, F>, I> Func;
};
template <class R, class P1, class P2, class P3, R *F(P1, P2, P3), class I>
struct MaybeWrapReturn<Func3<R *, P1, P2, P3, F, I>, void *,
typename disable_if_same<R *, void *>::Type> {
typedef Func3<void *, P1, P2, P3, CastReturnToVoidPtr3<R *, P1, P2, P3, F>, I>
Func;
};
/* If our function returns bool but we want one returning void*, wrap it in a
* function that returns either the first param or UPB_BREAK. */
template <class P1, class P2, bool F(P1, P2), class I>
struct MaybeWrapReturn<Func2<bool, P1, P2, F, I>, void *> {
typedef Func2<void *, P1, P2, ReturnClosureOrBreak2<P1, P2, F>, I> Func;
};
template <class P1, class P2, class P3, bool F(P1, P2, P3), class I>
struct MaybeWrapReturn<Func3<bool, P1, P2, P3, F, I>, void *> {
typedef Func3<void *, P1, P2, P3, ReturnClosureOrBreak3<P1, P2, P3, F>, I>
Func;
};
/* If our function returns void but we want one returning size_t, wrap it in a
* function that returns the size argument. */
template <class P1, class P2,
void F(P1, P2, const char *, size_t, const BufferHandle *), class I>
struct MaybeWrapReturn<
Func5<void, P1, P2, const char *, size_t, const BufferHandle *, F, I>,
size_t> {
typedef Func5<size_t, P1, P2, const char *, size_t, const BufferHandle *,
ReturnStringLen<P1, P2, F>, I> Func;
};
/* If our function returns bool but we want one returning size_t, wrap it in a
* function that returns either 0 or the buf size. */
template <class P1, class P2,
bool F(P1, P2, const char *, size_t, const BufferHandle *), class I>
struct MaybeWrapReturn<
Func5<bool, P1, P2, const char *, size_t, const BufferHandle *, F, I>,
size_t> {
typedef Func5<size_t, P1, P2, const char *, size_t, const BufferHandle *,
ReturnNOr0<P1, P2, F>, I> Func;
};
/* ConvertParams **************************************************************/
/* Template class that converts the function parameters if necessary, and
* ignores the HandlerData parameter if appropriate.
*
* Template parameter is the are FuncN function type. */
template <class F, class T>
struct ConvertParams;
/* Function that discards the handler data parameter. */
template <class R, class P1, R F(P1)>
R IgnoreHandlerData2(void *p1, const void *hd) {
UPB_UNUSED(hd);
return F(static_cast<P1>(p1));
}
template <class R, class P1, class P2Wrapper, class P2Wrapped,
R F(P1, P2Wrapped)>
R IgnoreHandlerData3(void *p1, const void *hd, P2Wrapper p2) {
UPB_UNUSED(hd);
return F(static_cast<P1>(p1), p2);
}
template <class R, class P1, class P2, class P3, R F(P1, P2, P3)>
R IgnoreHandlerData4(void *p1, const void *hd, P2 p2, P3 p3) {
UPB_UNUSED(hd);
return F(static_cast<P1>(p1), p2, p3);
}
template <class R, class P1, class P2, class P3, class P4, R F(P1, P2, P3, P4)>
R IgnoreHandlerData5(void *p1, const void *hd, P2 p2, P3 p3, P4 p4) {
UPB_UNUSED(hd);
return F(static_cast<P1>(p1), p2, p3, p4);
}
template <class R, class P1, R F(P1, const char*, size_t)>
R IgnoreHandlerDataIgnoreHandle(void *p1, const void *hd, const char *p2,
size_t p3, const BufferHandle *handle) {
UPB_UNUSED(hd);
UPB_UNUSED(handle);
return F(static_cast<P1>(p1), p2, p3);
}
/* Function that casts the handler data parameter. */
template <class R, class P1, class P2, R F(P1, P2)>
R CastHandlerData2(void *c, const void *hd) {
return F(static_cast<P1>(c), static_cast<P2>(hd));
}
template <class R, class P1, class P2, class P3Wrapper, class P3Wrapped,
R F(P1, P2, P3Wrapped)>
R CastHandlerData3(void *c, const void *hd, P3Wrapper p3) {
return F(static_cast<P1>(c), static_cast<P2>(hd), p3);
}
template <class R, class P1, class P2, class P3, class P4, class P5,
R F(P1, P2, P3, P4, P5)>
R CastHandlerData5(void *c, const void *hd, P3 p3, P4 p4, P5 p5) {
return F(static_cast<P1>(c), static_cast<P2>(hd), p3, p4, p5);
}
template <class R, class P1, class P2, R F(P1, P2, const char *, size_t)>
R CastHandlerDataIgnoreHandle(void *c, const void *hd, const char *p3,
size_t p4, const BufferHandle *handle) {
UPB_UNUSED(handle);
return F(static_cast<P1>(c), static_cast<P2>(hd), p3, p4);
}
/* For unbound functions, ignore the handler data. */
template <class R, class P1, R F(P1), class I, class T>
struct ConvertParams<Func1<R, P1, F, I>, T> {
typedef Func2<R, void *, const void *, IgnoreHandlerData2<R, P1, F>, I> Func;
};
template <class R, class P1, class P2, R F(P1, P2), class I,
class R2, class P1_2, class P2_2, class P3_2>
struct ConvertParams<Func2<R, P1, P2, F, I>,
R2 (*)(P1_2, P2_2, P3_2)> {
typedef Func3<R, void *, const void *, P3_2,
IgnoreHandlerData3<R, P1, P3_2, P2, F>, I> Func;
};
/* For StringBuffer only; this ignores both the handler data and the
* BufferHandle. */
template <class R, class P1, R F(P1, const char *, size_t), class I, class T>
struct ConvertParams<Func3<R, P1, const char *, size_t, F, I>, T> {
typedef Func5<R, void *, const void *, const char *, size_t,
const BufferHandle *, IgnoreHandlerDataIgnoreHandle<R, P1, F>,
I> Func;
};
template <class R, class P1, class P2, class P3, class P4, R F(P1, P2, P3, P4),
class I, class T>
struct ConvertParams<Func4<R, P1, P2, P3, P4, F, I>, T> {
typedef Func5<R, void *, const void *, P2, P3, P4,
IgnoreHandlerData5<R, P1, P2, P3, P4, F>, I> Func;
};
/* For bound functions, cast the handler data. */
template <class R, class P1, class P2, R F(P1, P2), class I, class T>
struct ConvertParams<BoundFunc2<R, P1, P2, F, I>, T> {
typedef Func2<R, void *, const void *, CastHandlerData2<R, P1, P2, F>, I>
Func;
};
template <class R, class P1, class P2, class P3, R F(P1, P2, P3), class I,
class R2, class P1_2, class P2_2, class P3_2>
struct ConvertParams<BoundFunc3<R, P1, P2, P3, F, I>,
R2 (*)(P1_2, P2_2, P3_2)> {
typedef Func3<R, void *, const void *, P3_2,
CastHandlerData3<R, P1, P2, P3_2, P3, F>, I> Func;
};
/* For StringBuffer only; this ignores the BufferHandle. */
template <class R, class P1, class P2, R F(P1, P2, const char *, size_t),
class I, class T>
struct ConvertParams<BoundFunc4<R, P1, P2, const char *, size_t, F, I>, T> {
typedef Func5<R, void *, const void *, const char *, size_t,
const BufferHandle *, CastHandlerDataIgnoreHandle<R, P1, P2, F>,
I> Func;
};
template <class R, class P1, class P2, class P3, class P4, class P5,
R F(P1, P2, P3, P4, P5), class I, class T>
struct ConvertParams<BoundFunc5<R, P1, P2, P3, P4, P5, F, I>, T> {
typedef Func5<R, void *, const void *, P3, P4, P5,
CastHandlerData5<R, P1, P2, P3, P4, P5, F>, I> Func;
};
/* utype/ltype are upper/lower-case, ctype is canonical C type, vtype is
* variant C type. */
#define TYPE_METHODS(utype, ltype, ctype, vtype) \
template <> struct CanonicalType<vtype> { \
typedef ctype Type; \
}; \
template <> \
inline bool Handlers::SetValueHandler<vtype>( \
const FieldDef *f, \
const Handlers::utype ## Handler& handler) { \
UPB_ASSERT(!handler.registered_); \
handler.AddCleanup(this); \
handler.registered_ = true; \
return upb_handlers_set##ltype(this, f, handler.handler_, &handler.attr_); \
} \
TYPE_METHODS(Double, double, double, double)
TYPE_METHODS(Float, float, float, float)
TYPE_METHODS(UInt64, uint64, uint64_t, UPB_UINT64_T)
TYPE_METHODS(UInt32, uint32, uint32_t, UPB_UINT32_T)
TYPE_METHODS(Int64, int64, int64_t, UPB_INT64_T)
TYPE_METHODS(Int32, int32, int32_t, UPB_INT32_T)
TYPE_METHODS(Bool, bool, bool, bool)
#ifdef UPB_TWO_32BIT_TYPES
TYPE_METHODS(Int32, int32, int32_t, UPB_INT32ALT_T)
TYPE_METHODS(UInt32, uint32, uint32_t, UPB_UINT32ALT_T)
#endif
#ifdef UPB_TWO_64BIT_TYPES
TYPE_METHODS(Int64, int64, int64_t, UPB_INT64ALT_T)
TYPE_METHODS(UInt64, uint64, uint64_t, UPB_UINT64ALT_T)
#endif
#undef TYPE_METHODS
template <> struct CanonicalType<Status*> {
typedef Status* Type;
};
/* Type methods that are only one-per-canonical-type and not
* one-per-cvariant. */
#define TYPE_METHODS(utype, ctype) \
inline bool Handlers::Set##utype##Handler(const FieldDef *f, \
const utype##Handler &h) { \
return SetValueHandler<ctype>(f, h); \
} \
TYPE_METHODS(Double, double)
TYPE_METHODS(Float, float)
TYPE_METHODS(UInt64, uint64_t)
TYPE_METHODS(UInt32, uint32_t)
TYPE_METHODS(Int64, int64_t)
TYPE_METHODS(Int32, int32_t)
TYPE_METHODS(Bool, bool)
#undef TYPE_METHODS
template <class F> struct ReturnOf;
template <class R, class P1, class P2>
struct ReturnOf<R (*)(P1, P2)> {
typedef R Return;
};
template <class R, class P1, class P2, class P3>
struct ReturnOf<R (*)(P1, P2, P3)> {
typedef R Return;
};
template <class R, class P1, class P2, class P3, class P4>
struct ReturnOf<R (*)(P1, P2, P3, P4)> {
typedef R Return;
};
template <class R, class P1, class P2, class P3, class P4, class P5>
struct ReturnOf<R (*)(P1, P2, P3, P4, P5)> {
typedef R Return;
};
template<class T> const void *UniquePtrForType() {
static const char ch = 0;
return &ch;
}
template <class T>
template <class F>
inline Handler<T>::Handler(F func)
: registered_(false),
cleanup_data_(func.GetData()),
cleanup_func_(func.GetCleanup()) {
upb_handlerattr_sethandlerdata(&attr_, func.GetData());
typedef typename ReturnOf<T>::Return Return;
typedef typename ConvertParams<F, T>::Func ConvertedParamsFunc;
typedef typename MaybeWrapReturn<ConvertedParamsFunc, Return>::Func
ReturnWrappedFunc;
handler_ = ReturnWrappedFunc().Call;
/* Set attributes based on what templates can statically tell us about the
* user's function. */
/* If the original function returns void, then we know that we wrapped it to
* always return ok. */
bool always_ok = is_same<typename F::FuncInfo::Return, void>::value;
attr_.SetAlwaysOk(always_ok);
/* Closure parameter and return type. */
attr_.SetClosureType(UniquePtrForType<typename F::FuncInfo::Closure>());
/* We use the closure type (from the first parameter) if the return type is
* void or bool, since these are the two cases we wrap to return the closure's
* type anyway.
*
* This is all nonsense for non START* handlers, but it doesn't matter because
* in that case the value will be ignored. */
typedef typename FirstUnlessVoidOrBool<typename F::FuncInfo::Return,
typename F::FuncInfo::Closure>::value
EffectiveReturn;
attr_.SetReturnClosureType(UniquePtrForType<EffectiveReturn>());
}
template <class T>
inline Handler<T>::~Handler() {
UPB_ASSERT(registered_);
}
inline HandlerAttributes::HandlerAttributes() { upb_handlerattr_init(this); }
inline HandlerAttributes::~HandlerAttributes() { upb_handlerattr_uninit(this); }
inline bool HandlerAttributes::SetHandlerData(const void *hd) {
return upb_handlerattr_sethandlerdata(this, hd);
}
inline const void* HandlerAttributes::handler_data() const {
return upb_handlerattr_handlerdata(this);
}
inline bool HandlerAttributes::SetClosureType(const void *type) {
return upb_handlerattr_setclosuretype(this, type);
}
inline const void* HandlerAttributes::closure_type() const {
return upb_handlerattr_closuretype(this);
}
inline bool HandlerAttributes::SetReturnClosureType(const void *type) {
return upb_handlerattr_setreturnclosuretype(this, type);
}
inline const void* HandlerAttributes::return_closure_type() const {
return upb_handlerattr_returnclosuretype(this);
}
inline bool HandlerAttributes::SetAlwaysOk(bool always_ok) {
return upb_handlerattr_setalwaysok(this, always_ok);
}
inline bool HandlerAttributes::always_ok() const {
return upb_handlerattr_alwaysok(this);
}
inline BufferHandle::BufferHandle() { upb_bufhandle_init(this); }
inline BufferHandle::~BufferHandle() { upb_bufhandle_uninit(this); }
inline const char* BufferHandle::buffer() const {
return upb_bufhandle_buf(this);
}
inline size_t BufferHandle::object_offset() const {
return upb_bufhandle_objofs(this);
}
inline void BufferHandle::SetBuffer(const char* buf, size_t ofs) {
upb_bufhandle_setbuf(this, buf, ofs);
}
template <class T>
void BufferHandle::SetAttachedObject(const T* obj) {
upb_bufhandle_setobj(this, obj, UniquePtrForType<T>());
}
template <class T>
const T* BufferHandle::GetAttachedObject() const {
return upb_bufhandle_objtype(this) == UniquePtrForType<T>()
? static_cast<const T *>(upb_bufhandle_obj(this))
: NULL;
}
inline reffed_ptr<Handlers> Handlers::New(const MessageDef *m) {
upb_handlers *h = upb_handlers_new(m, &h);
return reffed_ptr<Handlers>(h, &h);
}
inline reffed_ptr<const Handlers> Handlers::NewFrozen(
const MessageDef *m, upb_handlers_callback *callback,
const void *closure) {
const upb_handlers *h = upb_handlers_newfrozen(m, &h, callback, closure);
return reffed_ptr<const Handlers>(h, &h);
}
inline const Status* Handlers::status() {
return upb_handlers_status(this);
}
inline void Handlers::ClearError() {
return upb_handlers_clearerr(this);
}
inline bool Handlers::Freeze(Status *s) {
upb::Handlers* h = this;
return upb_handlers_freeze(&h, 1, s);
}
inline bool Handlers::Freeze(Handlers *const *handlers, int n, Status *s) {
return upb_handlers_freeze(handlers, n, s);
}
inline bool Handlers::Freeze(const std::vector<Handlers*>& h, Status* status) {
return upb_handlers_freeze((Handlers* const*)&h[0], h.size(), status);
}
inline const MessageDef *Handlers::message_def() const {
return upb_handlers_msgdef(this);
}
inline bool Handlers::AddCleanup(void *p, upb_handlerfree *func) {
return upb_handlers_addcleanup(this, p, func);
}
inline bool Handlers::SetStartMessageHandler(
const Handlers::StartMessageHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setstartmsg(this, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetEndMessageHandler(
const Handlers::EndMessageHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setendmsg(this, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetStartStringHandler(const FieldDef *f,
const StartStringHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setstartstr(this, f, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetEndStringHandler(const FieldDef *f,
const EndFieldHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setendstr(this, f, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetStringHandler(const FieldDef *f,
const StringHandler& handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setstring(this, f, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetStartSequenceHandler(
const FieldDef *f, const StartFieldHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setstartseq(this, f, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetStartSubMessageHandler(
const FieldDef *f, const StartFieldHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setstartsubmsg(this, f, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetEndSubMessageHandler(const FieldDef *f,
const EndFieldHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setendsubmsg(this, f, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetEndSequenceHandler(const FieldDef *f,
const EndFieldHandler &handler) {
UPB_ASSERT(!handler.registered_);
handler.registered_ = true;
handler.AddCleanup(this);
return upb_handlers_setendseq(this, f, handler.handler_, &handler.attr_);
}
inline bool Handlers::SetSubHandlers(const FieldDef *f, const Handlers *sub) {
return upb_handlers_setsubhandlers(this, f, sub);
}
inline const Handlers *Handlers::GetSubHandlers(const FieldDef *f) const {
return upb_handlers_getsubhandlers(this, f);
}
inline const Handlers *Handlers::GetSubHandlers(Handlers::Selector sel) const {
return upb_handlers_getsubhandlers_sel(this, sel);
}
inline bool Handlers::GetSelector(const FieldDef *f, Handlers::Type type,
Handlers::Selector *s) {
return upb_handlers_getselector(f, type, s);
}
inline Handlers::Selector Handlers::GetEndSelector(Handlers::Selector start) {
return upb_handlers_getendselector(start);
}
inline Handlers::GenericFunction *Handlers::GetHandler(
Handlers::Selector selector) {
return upb_handlers_gethandler(this, selector);
}
inline const void *Handlers::GetHandlerData(Handlers::Selector selector) {
return upb_handlers_gethandlerdata(this, selector);
}
inline BytesHandler::BytesHandler() {
upb_byteshandler_init(this);
}
inline BytesHandler::~BytesHandler() {}
} /* namespace upb */
#endif /* __cplusplus */
#undef UPB_TWO_32BIT_TYPES
#undef UPB_TWO_64BIT_TYPES
#undef UPB_INT32_T
#undef UPB_UINT32_T
#undef UPB_INT32ALT_T
#undef UPB_UINT32ALT_T
#undef UPB_INT64_T
#undef UPB_UINT64_T
#undef UPB_INT64ALT_T
#undef UPB_UINT64ALT_T
#endif /* UPB_HANDLERS_INL_H_ */
#endif /* UPB_HANDLERS_H */
/*
** upb::Sink (upb_sink)
** upb::BytesSink (upb_bytessink)
**
** A upb_sink is an object that binds a upb_handlers object to some runtime
** state. It is the object that can actually receive data via the upb_handlers
** interface.
**
** Unlike upb_def and upb_handlers, upb_sink is never frozen, immutable, or
** thread-safe. You can create as many of them as you want, but each one may
** only be used in a single thread at a time.
**
** If we compare with class-based OOP, a you can think of a upb_def as an
** abstract base class, a upb_handlers as a concrete derived class, and a
** upb_sink as an object (class instance).
*/
#ifndef UPB_SINK_H
#define UPB_SINK_H
#ifdef __cplusplus
namespace upb {
class BufferSink;
class BufferSource;
class BytesSink;
class Sink;
}
#endif
UPB_DECLARE_TYPE(upb::BufferSink, upb_bufsink)
UPB_DECLARE_TYPE(upb::BufferSource, upb_bufsrc)
UPB_DECLARE_TYPE(upb::BytesSink, upb_bytessink)
UPB_DECLARE_TYPE(upb::Sink, upb_sink)
#ifdef __cplusplus
/* A upb::Sink is an object that binds a upb::Handlers object to some runtime
* state. It represents an endpoint to which data can be sent.
*
* TODO(haberman): right now all of these functions take selectors. Should they
* take selectorbase instead?
*
* ie. instead of calling:
* sink->StartString(FOO_FIELD_START_STRING, ...)
* a selector base would let you say:
* sink->StartString(FOO_FIELD, ...)
*
* This would make call sites a little nicer and require emitting fewer selector
* definitions in .h files.
*
* But the current scheme has the benefit that you can retrieve a function
* pointer for any handler with handlers->GetHandler(selector), without having
* to have a separate GetHandler() function for each handler type. The JIT
* compiler uses this. To accommodate we'd have to expose a separate
* GetHandler() for every handler type.
*
* Also to ponder: selectors right now are independent of a specific Handlers
* instance. In other words, they allocate a number to every possible handler
* that *could* be registered, without knowing anything about what handlers
* *are* registered. That means that using selectors as table offsets prohibits
* us from compacting the handler table at Freeze() time. If the table is very
* sparse, this could be wasteful.
*
* Having another selector-like thing that is specific to a Handlers instance
* would allow this compacting, but then it would be impossible to write code
* ahead-of-time that can be bound to any Handlers instance at runtime. For
* example, a .proto file parser written as straight C will not know what
* Handlers it will be bound to, so when it calls sink->StartString() what
* selector will it pass? It needs a selector like we have today, that is
* independent of any particular upb::Handlers.
*
* Is there a way then to allow Handlers table compaction? */
class upb::Sink {
public:
/* Constructor with no initialization; must be Reset() before use. */
Sink() {}
/* Constructs a new sink for the given frozen handlers and closure.
*
* TODO: once the Handlers know the expected closure type, verify that T
* matches it. */
template <class T> Sink(const Handlers* handlers, T* closure);
/* Resets the value of the sink. */
template <class T> void Reset(const Handlers* handlers, T* closure);
/* Returns the top-level object that is bound to this sink.
*
* TODO: once the Handlers know the expected closure type, verify that T
* matches it. */
template <class T> T* GetObject() const;
/* Functions for pushing data into the sink.
*
* These return false if processing should stop (either due to error or just
* to suspend).
*
* These may not be called from within one of the same sink's handlers (in
* other words, handlers are not re-entrant). */
/* Should be called at the start and end of every message; both the top-level
* message and submessages. This means that submessages should use the
* following sequence:
* sink->StartSubMessage(startsubmsg_selector);
* sink->StartMessage();
* // ...
* sink->EndMessage(&status);
* sink->EndSubMessage(endsubmsg_selector); */
bool StartMessage();
bool EndMessage(Status* status);
/* Putting of individual values. These work for both repeated and
* non-repeated fields, but for repeated fields you must wrap them in
* calls to StartSequence()/EndSequence(). */
bool PutInt32(Handlers::Selector s, int32_t val);
bool PutInt64(Handlers::Selector s, int64_t val);
bool PutUInt32(Handlers::Selector s, uint32_t val);
bool PutUInt64(Handlers::Selector s, uint64_t val);
bool PutFloat(Handlers::Selector s, float val);
bool PutDouble(Handlers::Selector s, double val);
bool PutBool(Handlers::Selector s, bool val);
/* Putting of string/bytes values. Each string can consist of zero or more
* non-contiguous buffers of data.
*
* For StartString(), the function will write a sink for the string to "sub."
* The sub-sink must be used for any/all PutStringBuffer() calls. */
bool StartString(Handlers::Selector s, size_t size_hint, Sink* sub);
size_t PutStringBuffer(Handlers::Selector s, const char *buf, size_t len,
const BufferHandle *handle);
bool EndString(Handlers::Selector s);
/* For submessage fields.
*
* For StartSubMessage(), the function will write a sink for the string to
* "sub." The sub-sink must be used for any/all handlers called within the
* submessage. */
bool StartSubMessage(Handlers::Selector s, Sink* sub);
bool EndSubMessage(Handlers::Selector s);
/* For repeated fields of any type, the sequence of values must be wrapped in
* these calls.
*
* For StartSequence(), the function will write a sink for the string to
* "sub." The sub-sink must be used for any/all handlers called within the
* sequence. */
bool StartSequence(Handlers::Selector s, Sink* sub);
bool EndSequence(Handlers::Selector s);
/* Copy and assign specifically allowed.
* We don't even bother making these members private because so many
* functions need them and this is mainly just a dumb data container anyway.
*/
#else
struct upb_sink {
#endif
const upb_handlers *handlers;
void *closure;
};
#ifdef __cplusplus
class upb::BytesSink {
public:
BytesSink() {}
/* Constructs a new sink for the given frozen handlers and closure.
*
* TODO(haberman): once the Handlers know the expected closure type, verify
* that T matches it. */
template <class T> BytesSink(const BytesHandler* handler, T* closure);
/* Resets the value of the sink. */
template <class T> void Reset(const BytesHandler* handler, T* closure);
bool Start(size_t size_hint, void **subc);
size_t PutBuffer(void *subc, const char *buf, size_t len,
const BufferHandle *handle);
bool End();
#else
struct upb_bytessink {
#endif
const upb_byteshandler *handler;
void *closure;
};
#ifdef __cplusplus
/* A class for pushing a flat buffer of data to a BytesSink.
* You can construct an instance of this to get a resumable source,
* or just call the static PutBuffer() to do a non-resumable push all in one
* go. */
class upb::BufferSource {
public:
BufferSource();
BufferSource(const char* buf, size_t len, BytesSink* sink);
/* Returns true if the entire buffer was pushed successfully. Otherwise the
* next call to PutNext() will resume where the previous one left off.
* TODO(haberman): implement this. */
bool PutNext();
/* A static version; with this version is it not possible to resume in the
* case of failure or a partially-consumed buffer. */
static bool PutBuffer(const char* buf, size_t len, BytesSink* sink);
template <class T> static bool PutBuffer(const T& str, BytesSink* sink) {
return PutBuffer(str.c_str(), str.size(), sink);
}
#else
struct upb_bufsrc {
char dummy;
#endif
};
UPB_BEGIN_EXTERN_C
/* A class for accumulating output string data in a flat buffer. */
upb_bufsink *upb_bufsink_new(upb_env *env);
void upb_bufsink_free(upb_bufsink *sink);
upb_bytessink *upb_bufsink_sink(upb_bufsink *sink);
const char *upb_bufsink_getdata(const upb_bufsink *sink, size_t *len);
/* Inline definitions. */
UPB_INLINE void upb_bytessink_reset(upb_bytessink *s, const upb_byteshandler *h,
void *closure) {
s->handler = h;
s->closure = closure;
}
UPB_INLINE bool upb_bytessink_start(upb_bytessink *s, size_t size_hint,
void **subc) {
typedef upb_startstr_handlerfunc func;
func *start;
*subc = s->closure;
if (!s->handler) return true;
start = (func *)s->handler->table[UPB_STARTSTR_SELECTOR].func;
if (!start) return true;
*subc = start(s->closure, upb_handlerattr_handlerdata(
&s->handler->table[UPB_STARTSTR_SELECTOR].attr),
size_hint);
return *subc != NULL;
}
UPB_INLINE size_t upb_bytessink_putbuf(upb_bytessink *s, void *subc,
const char *buf, size_t size,
const upb_bufhandle* handle) {
typedef upb_string_handlerfunc func;
func *putbuf;
if (!s->handler) return true;
putbuf = (func *)s->handler->table[UPB_STRING_SELECTOR].func;
if (!putbuf) return true;
return putbuf(subc, upb_handlerattr_handlerdata(
&s->handler->table[UPB_STRING_SELECTOR].attr),
buf, size, handle);
}
UPB_INLINE bool upb_bytessink_end(upb_bytessink *s) {
typedef upb_endfield_handlerfunc func;
func *end;
if (!s->handler) return true;
end = (func *)s->handler->table[UPB_ENDSTR_SELECTOR].func;
if (!end) return true;
return end(s->closure,
upb_handlerattr_handlerdata(
&s->handler->table[UPB_ENDSTR_SELECTOR].attr));
}
bool upb_bufsrc_putbuf(const char *buf, size_t len, upb_bytessink *sink);
#define PUTVAL(type, ctype) \
UPB_INLINE bool upb_sink_put##type(upb_sink *s, upb_selector_t sel, \
ctype val) { \
typedef upb_##type##_handlerfunc functype; \
functype *func; \
const void *hd; \
if (!s->handlers) return true; \
func = (functype *)upb_handlers_gethandler(s->handlers, sel); \
if (!func) return true; \
hd = upb_handlers_gethandlerdata(s->handlers, sel); \
return func(s->closure, hd, val); \
}
PUTVAL(int32, int32_t)
PUTVAL(int64, int64_t)
PUTVAL(uint32, uint32_t)
PUTVAL(uint64, uint64_t)
PUTVAL(float, float)
PUTVAL(double, double)
PUTVAL(bool, bool)
#undef PUTVAL
UPB_INLINE void upb_sink_reset(upb_sink *s, const upb_handlers *h, void *c) {
s->handlers = h;
s->closure = c;
}
UPB_INLINE size_t upb_sink_putstring(upb_sink *s, upb_selector_t sel,
const char *buf, size_t n,
const upb_bufhandle *handle) {
typedef upb_string_handlerfunc func;
func *handler;
const void *hd;
if (!s->handlers) return n;
handler = (func *)upb_handlers_gethandler(s->handlers, sel);
if (!handler) return n;
hd = upb_handlers_gethandlerdata(s->handlers, sel);
return handler(s->closure, hd, buf, n, handle);
}
UPB_INLINE bool upb_sink_putunknown(upb_sink *s, const char *buf, size_t n) {
typedef upb_unknown_handlerfunc func;
func *handler;
const void *hd;
if (!s->handlers) return true;
handler = (func *)upb_handlers_gethandler(s->handlers, UPB_UNKNOWN_SELECTOR);
if (!handler) return n;
hd = upb_handlers_gethandlerdata(s->handlers, UPB_UNKNOWN_SELECTOR);
return handler(s->closure, hd, buf, n);
}
UPB_INLINE bool upb_sink_startmsg(upb_sink *s) {
typedef upb_startmsg_handlerfunc func;
func *startmsg;
const void *hd;
if (!s->handlers) return true;
startmsg = (func*)upb_handlers_gethandler(s->handlers, UPB_STARTMSG_SELECTOR);
if (!startmsg) return true;
hd = upb_handlers_gethandlerdata(s->handlers, UPB_STARTMSG_SELECTOR);
return startmsg(s->closure, hd);
}
UPB_INLINE bool upb_sink_endmsg(upb_sink *s, upb_status *status) {
typedef upb_endmsg_handlerfunc func;
func *endmsg;
const void *hd;
if (!s->handlers) return true;
endmsg = (func *)upb_handlers_gethandler(s->handlers, UPB_ENDMSG_SELECTOR);
if (!endmsg) return true;
hd = upb_handlers_gethandlerdata(s->handlers, UPB_ENDMSG_SELECTOR);
return endmsg(s->closure, hd, status);
}
UPB_INLINE bool upb_sink_startseq(upb_sink *s, upb_selector_t sel,
upb_sink *sub) {
typedef upb_startfield_handlerfunc func;
func *startseq;
const void *hd;
sub->closure = s->closure;
sub->handlers = s->handlers;
if (!s->handlers) return true;
startseq = (func*)upb_handlers_gethandler(s->handlers, sel);
if (!startseq) return true;
hd = upb_handlers_gethandlerdata(s->handlers, sel);
sub->closure = startseq(s->closure, hd);
return sub->closure ? true : false;
}
UPB_INLINE bool upb_sink_endseq(upb_sink *s, upb_selector_t sel) {
typedef upb_endfield_handlerfunc func;
func *endseq;
const void *hd;
if (!s->handlers) return true;
endseq = (func*)upb_handlers_gethandler(s->handlers, sel);
if (!endseq) return true;
hd = upb_handlers_gethandlerdata(s->handlers, sel);
return endseq(s->closure, hd);
}
UPB_INLINE bool upb_sink_startstr(upb_sink *s, upb_selector_t sel,
size_t size_hint, upb_sink *sub) {
typedef upb_startstr_handlerfunc func;
func *startstr;
const void *hd;
sub->closure = s->closure;
sub->handlers = s->handlers;
if (!s->handlers) return true;
startstr = (func*)upb_handlers_gethandler(s->handlers, sel);
if (!startstr) return true;
hd = upb_handlers_gethandlerdata(s->handlers, sel);
sub->closure = startstr(s->closure, hd, size_hint);
return sub->closure ? true : false;
}
UPB_INLINE bool upb_sink_endstr(upb_sink *s, upb_selector_t sel) {
typedef upb_endfield_handlerfunc func;
func *endstr;
const void *hd;
if (!s->handlers) return true;
endstr = (func*)upb_handlers_gethandler(s->handlers, sel);
if (!endstr) return true;
hd = upb_handlers_gethandlerdata(s->handlers, sel);
return endstr(s->closure, hd);
}
UPB_INLINE bool upb_sink_startsubmsg(upb_sink *s, upb_selector_t sel,
upb_sink *sub) {
typedef upb_startfield_handlerfunc func;
func *startsubmsg;
const void *hd;
sub->closure = s->closure;
if (!s->handlers) {
sub->handlers = NULL;
return true;
}
sub->handlers = upb_handlers_getsubhandlers_sel(s->handlers, sel);
startsubmsg = (func*)upb_handlers_gethandler(s->handlers, sel);
if (!startsubmsg) return true;
hd = upb_handlers_gethandlerdata(s->handlers, sel);
sub->closure = startsubmsg(s->closure, hd);
return sub->closure ? true : false;
}
UPB_INLINE bool upb_sink_endsubmsg(upb_sink *s, upb_selector_t sel) {
typedef upb_endfield_handlerfunc func;
func *endsubmsg;
const void *hd;
if (!s->handlers) return true;
endsubmsg = (func*)upb_handlers_gethandler(s->handlers, sel);
if (!endsubmsg) return s->closure;
hd = upb_handlers_gethandlerdata(s->handlers, sel);
return endsubmsg(s->closure, hd);
}
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upb {
template <class T> Sink::Sink(const Handlers* handlers, T* closure) {
upb_sink_reset(this, handlers, closure);
}
template <class T>
inline void Sink::Reset(const Handlers* handlers, T* closure) {
upb_sink_reset(this, handlers, closure);
}
inline bool Sink::StartMessage() {
return upb_sink_startmsg(this);
}
inline bool Sink::EndMessage(Status* status) {
return upb_sink_endmsg(this, status);
}
inline bool Sink::PutInt32(Handlers::Selector sel, int32_t val) {
return upb_sink_putint32(this, sel, val);
}
inline bool Sink::PutInt64(Handlers::Selector sel, int64_t val) {
return upb_sink_putint64(this, sel, val);
}
inline bool Sink::PutUInt32(Handlers::Selector sel, uint32_t val) {
return upb_sink_putuint32(this, sel, val);
}
inline bool Sink::PutUInt64(Handlers::Selector sel, uint64_t val) {
return upb_sink_putuint64(this, sel, val);
}
inline bool Sink::PutFloat(Handlers::Selector sel, float val) {
return upb_sink_putfloat(this, sel, val);
}
inline bool Sink::PutDouble(Handlers::Selector sel, double val) {
return upb_sink_putdouble(this, sel, val);
}
inline bool Sink::PutBool(Handlers::Selector sel, bool val) {
return upb_sink_putbool(this, sel, val);
}
inline bool Sink::StartString(Handlers::Selector sel, size_t size_hint,
Sink *sub) {
return upb_sink_startstr(this, sel, size_hint, sub);
}
inline size_t Sink::PutStringBuffer(Handlers::Selector sel, const char *buf,
size_t len, const BufferHandle* handle) {
return upb_sink_putstring(this, sel, buf, len, handle);
}
inline bool Sink::EndString(Handlers::Selector sel) {
return upb_sink_endstr(this, sel);
}
inline bool Sink::StartSubMessage(Handlers::Selector sel, Sink* sub) {
return upb_sink_startsubmsg(this, sel, sub);
}
inline bool Sink::EndSubMessage(Handlers::Selector sel) {
return upb_sink_endsubmsg(this, sel);
}
inline bool Sink::StartSequence(Handlers::Selector sel, Sink* sub) {
return upb_sink_startseq(this, sel, sub);
}
inline bool Sink::EndSequence(Handlers::Selector sel) {
return upb_sink_endseq(this, sel);
}
template <class T>
BytesSink::BytesSink(const BytesHandler* handler, T* closure) {
Reset(handler, closure);
}
template <class T>
void BytesSink::Reset(const BytesHandler *handler, T *closure) {
upb_bytessink_reset(this, handler, closure);
}
inline bool BytesSink::Start(size_t size_hint, void **subc) {
return upb_bytessink_start(this, size_hint, subc);
}
inline size_t BytesSink::PutBuffer(void *subc, const char *buf, size_t len,
const BufferHandle *handle) {
return upb_bytessink_putbuf(this, subc, buf, len, handle);
}
inline bool BytesSink::End() {
return upb_bytessink_end(this);
}
inline bool BufferSource::PutBuffer(const char *buf, size_t len,
BytesSink *sink) {
return upb_bufsrc_putbuf(buf, len, sink);
}
} /* namespace upb */
#endif
#endif
#ifdef __cplusplus
namespace upb {
class Array;
class Map;
class MapIterator;
class MessageFactory;
class MessageLayout;
class Visitor;
class VisitorPlan;
}
#endif
UPB_DECLARE_TYPE(upb::MessageFactory, upb_msgfactory)
UPB_DECLARE_TYPE(upb::MessageLayout, upb_msglayout)
UPB_DECLARE_TYPE(upb::Array, upb_array)
UPB_DECLARE_TYPE(upb::Map, upb_map)
UPB_DECLARE_TYPE(upb::MapIterator, upb_mapiter)
UPB_DECLARE_TYPE(upb::Visitor, upb_visitor)
UPB_DECLARE_TYPE(upb::VisitorPlan, upb_visitorplan)
/* TODO(haberman): C++ accessors */
UPB_BEGIN_EXTERN_C
typedef void upb_msg;
/** upb_msglayout *************************************************************/
/* upb_msglayout represents the memory layout of a given upb_msgdef. You get
* instances of this from a upb_msgfactory, and the factory always owns the
* msglayout. */
/** upb_visitor ***************************************************************/
/* upb_visitor will visit all the fields of a message and its submessages. It
* uses a upb_visitorplan which you can obtain from a upb_msgfactory. */
upb_visitor *upb_visitor_create(upb_env *e, const upb_visitorplan *vp,
upb_sink *output);
bool upb_visitor_visitmsg(upb_visitor *v, const upb_msg *msg);
/** 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);
const upb_handlers *upb_msgfactory_getmergehandlers(upb_msgfactory *f,
const upb_msgdef *m);
const upb_visitorplan *upb_msgfactory_getvisitorplan(upb_msgfactory *f,
const upb_handlers *h);
/** upb_stringview ************************************************************/
typedef struct {
const char *data;
size_t size;
} upb_stringview;
UPB_INLINE upb_stringview upb_stringview_make(const char *data, size_t size) {
upb_stringview ret;
ret.data = data;
ret.size = size;
return ret;
}
#define UPB_STRINGVIEW_INIT(ptr, len) {ptr, len}
/** upb_msgval ****************************************************************/
/* A union representing all possible protobuf values. Used for generic get/set
* operations. */
typedef union {
bool b;
float flt;
double dbl;
int32_t i32;
int64_t i64;
uint32_t u32;
uint64_t u64;
const upb_map* map;
const upb_msg* msg;
const upb_array* arr;
const void* ptr;
upb_stringview str;
} upb_msgval;
#define ACCESSORS(name, membername, ctype) \
UPB_INLINE ctype upb_msgval_get ## name(upb_msgval v) { \
return v.membername; \
} \
UPB_INLINE void upb_msgval_set ## name(upb_msgval *v, ctype cval) { \
v->membername = cval; \
} \
UPB_INLINE upb_msgval upb_msgval_ ## name(ctype v) { \
upb_msgval ret; \
ret.membername = v; \
return ret; \
}
ACCESSORS(bool, b, bool)
ACCESSORS(float, flt, float)
ACCESSORS(double, dbl, double)
ACCESSORS(int32, i32, int32_t)
ACCESSORS(int64, i64, int64_t)
ACCESSORS(uint32, u32, uint32_t)
ACCESSORS(uint64, u64, uint64_t)
ACCESSORS(map, map, const upb_map*)
ACCESSORS(msg, msg, const upb_msg*)
ACCESSORS(ptr, ptr, const void*)
ACCESSORS(arr, arr, const upb_array*)
ACCESSORS(str, str, upb_stringview)
#undef ACCESSORS
UPB_INLINE upb_msgval upb_msgval_makestr(const char *data, size_t size) {
return upb_msgval_str(upb_stringview_make(data, size));
}
/** upb_msg *******************************************************************/
/* A upb_msg represents a protobuf message. It always corresponds to a specific
* upb_msglayout, which describes how it is laid out in memory.
*
* The message will have a fixed size, as returned by upb_msg_sizeof(), which
* will be used to store fixed-length fields. The upb_msg may also allocate
* dynamic memory internally to store data such as:
*
* - extensions
* - unknown fields
*/
/* Returns the size of a message given this layout. */
size_t upb_msg_sizeof(const upb_msglayout *l);
/* upb_msg_init() / upb_msg_uninit() allow the user to use a pre-allocated
* block of memory as a message. The block's size should be upb_msg_sizeof().
* upb_msg_uninit() must be called to release internally-allocated memory
* unless the allocator is an arena that does not require freeing.
*
* Please note that upb_msg_init() may return a value that is different than
* |msg|, so you must assign the return value and not cast your memory block
* to upb_msg* directly!
*
* Please note that upb_msg_uninit() does *not* free any submessages, maps,
* or arrays referred to by this message's fields. You must free them manually
* yourself.
*
* upb_msg_uninit returns the original memory block, which may be useful if
* you dynamically allocated it (though upb_msg_new() would normally be more
* appropriate in this case). */
upb_msg *upb_msg_init(void *msg, const upb_msglayout *l, upb_alloc *a);
void *upb_msg_uninit(upb_msg *msg, const upb_msglayout *l);
/* Like upb_msg_init() / upb_msg_uninit(), except the message's memory is
* allocated / freed from the given upb_alloc. */
upb_msg *upb_msg_new(const upb_msglayout *l, upb_alloc *a);
void upb_msg_free(upb_msg *msg, const upb_msglayout *l);
/* Returns the upb_alloc for the given message.
* TODO(haberman): get rid of this? Not sure we want to be storing this
* for every message. */
upb_alloc *upb_msg_alloc(const upb_msg *msg);
/* Packs the tree of messages rooted at "msg" into a single hunk of memory,
* allocated from the given allocator. */
void *upb_msg_pack(const upb_msg *msg, const upb_msglayout *l,
void *p, size_t *ofs, size_t size);
/* Read-only message API. Can be safely called by anyone. */
/* Returns the value associated with this field:
* - for scalar fields (including strings), the value directly.
* - return upb_msg*, or upb_map* for msg/map.
* If the field is unset for these field types, returns NULL.
*
* TODO(haberman): should we let users store cached array/map/msg
* pointers here for fields that are unset? Could be useful for the
* strongly-owned submessage model (ie. generated C API that doesn't use
* arenas).
*/
upb_msgval upb_msg_get(const upb_msg *msg,
int field_index,
const upb_msglayout *l);
/* May only be called for fields where upb_fielddef_haspresence(f) == true. */
bool upb_msg_has(const upb_msg *msg,
int field_index,
const upb_msglayout *l);
/* Mutable message API. May only be called by the owner of the message who
* knows its ownership scheme and how to keep it consistent. */
/* Sets the given field to the given value. Does not perform any memory
* management: if you overwrite a pointer to a msg/array/map/string without
* cleaning it up (or using an arena) it will leak.
*/
void upb_msg_set(upb_msg *msg,
int field_index,
upb_msgval val,
const upb_msglayout *l);
/* For a primitive field, set it back to its default. For repeated, string, and
* submessage fields set it back to NULL. This could involve releasing some
* internal memory (for example, from an extension dictionary), but it is not
* recursive in any way and will not recover any memory that may be used by
* arrays/maps/strings/msgs that this field may have pointed to.
*/
bool upb_msg_clearfield(upb_msg *msg,
int field_index,
const upb_msglayout *l);
/* TODO(haberman): copyfrom()/mergefrom()? */
/** upb_array *****************************************************************/
/* A upb_array stores data for a repeated field. The memory management
* semantics are the same as upb_msg. A upb_array allocates dynamic
* memory internally for the array elements. */
size_t upb_array_sizeof(upb_fieldtype_t type);
void upb_array_init(upb_array *arr, upb_fieldtype_t type, upb_alloc *a);
void upb_array_uninit(upb_array *arr);
upb_array *upb_array_new(upb_fieldtype_t type, upb_alloc *a);
void upb_array_free(upb_array *arr);
/* Read-only interface. Safe for anyone to call. */
size_t upb_array_size(const upb_array *arr);
upb_fieldtype_t upb_array_type(const upb_array *arr);
upb_msgval upb_array_get(const upb_array *arr, size_t i);
/* Write interface. May only be called by the message's owner who can enforce
* its memory management invariants. */
bool upb_array_set(upb_array *arr, size_t i, upb_msgval val);
/** upb_map *******************************************************************/
/* A upb_map stores data for a map field. The memory management semantics are
* the same as upb_msg, with one notable exception. upb_map will internally
* store a copy of all string keys, but *not* any string values or submessages.
* So you must ensure that any string or message values outlive the map, and you
* must delete them manually when they are no longer required. */
size_t upb_map_sizeof(upb_fieldtype_t ktype, upb_fieldtype_t vtype);
bool upb_map_init(upb_map *map, upb_fieldtype_t ktype, upb_fieldtype_t vtype,
upb_alloc *a);
void upb_map_uninit(upb_map *map);
upb_map *upb_map_new(upb_fieldtype_t ktype, upb_fieldtype_t vtype, upb_alloc *a);
void upb_map_free(upb_map *map);
/* Read-only interface. Safe for anyone to call. */
size_t upb_map_size(const upb_map *map);
upb_fieldtype_t upb_map_keytype(const upb_map *map);
upb_fieldtype_t upb_map_valuetype(const upb_map *map);
bool upb_map_get(const upb_map *map, upb_msgval key, upb_msgval *val);
/* Write interface. May only be called by the message's owner who can enforce
* its memory management invariants. */
/* Sets or overwrites an entry in the map. Return value indicates whether
* the operation succeeded or failed with OOM, and also whether an existing
* key was replaced or not. */
bool upb_map_set(upb_map *map,
upb_msgval key, upb_msgval val,
upb_msgval *valremoved);
/* Deletes an entry in the map. Returns true if the key was present. */
bool upb_map_del(upb_map *map, upb_msgval key);
/** upb_mapiter ***************************************************************/
/* For iterating over a map. Map iterators are invalidated by mutations to the
* map, but an invalidated iterator will never return junk or crash the process.
* An invalidated iterator may return entries that were already returned though,
* and if you keep invalidating the iterator during iteration, the program may
* enter an infinite loop. */
size_t upb_mapiter_sizeof();
void upb_mapiter_begin(upb_mapiter *i, const upb_map *t);
upb_mapiter *upb_mapiter_new(const upb_map *t, upb_alloc *a);
void upb_mapiter_free(upb_mapiter *i, upb_alloc *a);
void upb_mapiter_next(upb_mapiter *i);
bool upb_mapiter_done(const upb_mapiter *i);
upb_msgval upb_mapiter_key(const upb_mapiter *i);
upb_msgval upb_mapiter_value(const upb_mapiter *i);
void upb_mapiter_setdone(upb_mapiter *i);
bool upb_mapiter_isequal(const upb_mapiter *i1, const upb_mapiter *i2);
/** Handlers ******************************************************************/
/* These are the handlers used internally by upb_msgfactory_getmergehandlers().
* They write scalar data to a known offset from the message pointer.
*
* These would be trivial for anyone to implement themselves, but it's better
* to use these because some JITs will recognize and specialize these instead
* of actually calling the function. */
/* Sets a handler for the given primitive field that will write the data at the
* given offset. If hasbit > 0, also sets a hasbit at the given bit offset
* (addressing each byte low to high). */
bool upb_msg_setscalarhandler(upb_handlers *h,
const upb_fielddef *f,
size_t offset,
int32_t hasbit);
/* If the given handler is a msghandlers_primitive field, returns true and sets
* *type, *offset and *hasbit. Otherwise returns false. */
bool upb_msg_getscalarhandlerdata(const upb_handlers *h,
upb_selector_t s,
upb_fieldtype_t *type,
size_t *offset,
int32_t *hasbit);
/** Interfaces for generated code *********************************************/
#define UPB_NOT_IN_ONEOF UINT16_MAX
#define UPB_NO_HASBIT UINT16_MAX
#define UPB_NO_SUBMSG UINT16_MAX
typedef struct {
uint32_t number;
uint32_t offset; /* If in a oneof, offset of default in default_msg below. */
uint16_t hasbit; /* UPB_NO_HASBIT if no hasbit. */
uint16_t oneof_index; /* UPB_NOT_IN_ONEOF if not in a oneof. */
uint16_t submsg_index; /* UPB_NO_SUBMSG if no submsg. */
uint8_t type;
uint8_t label;
} upb_msglayout_fieldinit_v1;
typedef struct {
uint32_t data_offset;
uint32_t case_offset;
} upb_msglayout_oneofinit_v1;
typedef struct upb_msglayout_msginit_v1 {
const struct upb_msglayout_msginit_v1 *const* submsgs;
const upb_msglayout_fieldinit_v1 *fields;
const upb_msglayout_oneofinit_v1 *oneofs;
void *default_msg;
/* Must be aligned to sizeof(void*). Doesn't include internal members like
* unknown fields, extension dict, pointer to msglayout, etc. */
uint32_t size;
uint16_t field_count;
uint16_t oneof_count;
bool extendable;
bool is_proto2;
} upb_msglayout_msginit_v1;
#define UPB_ALIGN_UP_TO(val, align) ((val + (align - 1)) & -align)
#define UPB_ALIGNED_SIZEOF(type) UPB_ALIGN_UP_TO(sizeof(type), sizeof(void*))
/* Initialize/uninitialize a msglayout from a msginit. If upb uses v1
* internally, this will not allocate any memory. Should only be used by
* generated code. */
upb_msglayout *upb_msglayout_frominit_v1(
const upb_msglayout_msginit_v1 *init, upb_alloc *a);
void upb_msglayout_uninit_v1(upb_msglayout *layout, upb_alloc *a);
UPB_END_EXTERN_C
#endif /* UPB_MSG_H_ */
UPB_BEGIN_EXTERN_C
bool upb_decode(upb_stringview buf, void *msg,
const upb_msglayout_msginit_v1 *l, upb_env *env);
UPB_END_EXTERN_C
#endif /* UPB_DECODE_H_ */
/*
** structs.int.h: structures definitions that are internal to upb.
*/
#ifndef UPB_STRUCTS_H_
#define UPB_STRUCTS_H_
struct upb_array {
upb_fieldtype_t type;
uint8_t element_size;
void *data; /* Each element is element_size. */
size_t len; /* Measured in elements. */
size_t size; /* Measured in elements. */
upb_alloc *alloc;
};
#endif /* UPB_STRUCTS_H_ */
/*
** This file contains definitions of structs that should be considered private
** and NOT stable across versions of upb.
**
** The only reason they are declared here and not in .c files is to allow upb
** and the application (if desired) to embed statically-initialized instances
** of structures like defs.
**
** If you include this file, all guarantees of ABI compatibility go out the
** window! Any code that includes this file needs to recompile against the
** exact same version of upb that they are linking against.
**
** You also need to recompile if you change the value of the UPB_DEBUG_REFS
** flag.
*/
#ifndef UPB_STATICINIT_H_
#define UPB_STATICINIT_H_
#ifdef __cplusplus
/* Because of how we do our typedefs, this header can't be included from C++. */
#error This file cannot be included from C++
#endif
/* upb_refcounted *************************************************************/
/* upb_def ********************************************************************/
struct upb_def {
upb_refcounted base;
const char *fullname;
const upb_filedef* file;
char type; /* A upb_deftype_t (char to save space) */
/* Used as a flag during the def's mutable stage. Must be false unless
* it is currently being used by a function on the stack. This allows
* us to easily determine which defs were passed into the function's
* current invocation. */
bool came_from_user;
};
#define UPB_DEF_INIT(name, type, vtbl, refs, ref2s) \
{ UPB_REFCOUNT_INIT(vtbl, refs, ref2s), name, NULL, type, false }
/* upb_fielddef ***************************************************************/
struct upb_fielddef {
upb_def base;
union {
int64_t sint;
uint64_t uint;
double dbl;
float flt;
void *bytes;
} defaultval;
union {
const upb_msgdef *def; /* If !msg_is_symbolic. */
char *name; /* If msg_is_symbolic. */
} msg;
union {
const upb_def *def; /* If !subdef_is_symbolic. */
char *name; /* If subdef_is_symbolic. */
} sub; /* The msgdef or enumdef for this field, if upb_hassubdef(f). */
bool subdef_is_symbolic;
bool msg_is_symbolic;
const upb_oneofdef *oneof;
bool default_is_string;
bool type_is_set_; /* False until type is explicitly set. */
bool is_extension_;
bool lazy_;
bool packed_;
upb_intfmt_t intfmt;
bool tagdelim;
upb_fieldtype_t type_;
upb_label_t label_;
uint32_t number_;
uint32_t selector_base; /* Used to index into a upb::Handlers table. */
uint32_t index_;
};
extern const struct upb_refcounted_vtbl upb_fielddef_vtbl;
#define UPB_FIELDDEF_INIT(label, type, intfmt, tagdelim, is_extension, lazy, \
packed, name, num, msgdef, subdef, selector_base, \
index, defaultval, refs, ref2s) \
{ \
UPB_DEF_INIT(name, UPB_DEF_FIELD, &upb_fielddef_vtbl, refs, ref2s), \
defaultval, {msgdef}, {subdef}, NULL, false, false, \
type == UPB_TYPE_STRING || type == UPB_TYPE_BYTES, true, is_extension, \
lazy, packed, intfmt, tagdelim, type, label, num, selector_base, index \
}
/* upb_msgdef *****************************************************************/
struct upb_msgdef {
upb_def base;
size_t selector_count;
uint32_t submsg_field_count;
/* Tables for looking up fields by number and name. */
upb_inttable itof; /* int to field */
upb_strtable ntof; /* name to field/oneof */
/* Is this a map-entry message? */
bool map_entry;
/* Whether this message has proto2 or proto3 semantics. */
upb_syntax_t syntax;
/* TODO(haberman): proper extension ranges (there can be multiple). */
};
extern const struct upb_refcounted_vtbl upb_msgdef_vtbl;
/* TODO: also support static initialization of the oneofs table. This will be
* needed if we compile in descriptors that contain oneofs. */
#define UPB_MSGDEF_INIT(name, selector_count, submsg_field_count, itof, ntof, \
map_entry, syntax, refs, ref2s) \
{ \
UPB_DEF_INIT(name, UPB_DEF_MSG, &upb_fielddef_vtbl, refs, ref2s), \
selector_count, submsg_field_count, itof, ntof, map_entry, syntax \
}
/* upb_enumdef ****************************************************************/
struct upb_enumdef {
upb_def base;
upb_strtable ntoi;
upb_inttable iton;
int32_t defaultval;
};
extern const struct upb_refcounted_vtbl upb_enumdef_vtbl;
#define UPB_ENUMDEF_INIT(name, ntoi, iton, defaultval, refs, ref2s) \
{ UPB_DEF_INIT(name, UPB_DEF_ENUM, &upb_enumdef_vtbl, refs, ref2s), ntoi, \
iton, defaultval }
/* upb_oneofdef ***************************************************************/
struct upb_oneofdef {
upb_refcounted base;
uint32_t index; /* Index within oneofs. */
const char *name;
upb_strtable ntof;
upb_inttable itof;
const upb_msgdef *parent;
};
extern const struct upb_refcounted_vtbl upb_oneofdef_vtbl;
#define UPB_ONEOFDEF_INIT(name, ntof, itof, refs, ref2s) \
{ UPB_REFCOUNT_INIT(&upb_oneofdef_vtbl, refs, ref2s), 0, name, ntof, itof }
/* upb_symtab *****************************************************************/
struct upb_symtab {
upb_refcounted base;
upb_strtable symtab;
};
struct upb_filedef {
upb_refcounted base;
const char *name;
const char *package;
const char *phpprefix;
const char *phpnamespace;
upb_syntax_t syntax;
upb_inttable defs;
upb_inttable deps;
};
extern const struct upb_refcounted_vtbl upb_filedef_vtbl;
#endif /* UPB_STATICINIT_H_ */
/*
** upb_encode: parsing into a upb_msg using a upb_msglayout.
*/
#ifndef UPB_ENCODE_H_
#define UPB_ENCODE_H_
UPB_BEGIN_EXTERN_C
char *upb_encode(const void *msg, const upb_msglayout_msginit_v1 *l,
upb_env *env, size_t *size);
UPB_END_EXTERN_C
#endif /* UPB_ENCODE_H_ */
/*
** upb::descriptor::Reader (upb_descreader)
**
** Provides a way of building upb::Defs from data in descriptor.proto format.
*/
#ifndef UPB_DESCRIPTOR_H
#define UPB_DESCRIPTOR_H
#ifdef __cplusplus
namespace upb {
namespace descriptor {
class Reader;
} /* namespace descriptor */
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::descriptor::Reader, upb_descreader)
#ifdef __cplusplus
/* Class that receives descriptor data according to the descriptor.proto schema
* and use it to build upb::Defs corresponding to that schema. */
class upb::descriptor::Reader {
public:
/* These handlers must have come from NewHandlers() and must outlive the
* Reader.
*
* TODO: generate the handlers statically (like we do with the
* descriptor.proto defs) so that there is no need to pass this parameter (or
* to build/memory-manage the handlers at runtime at all). Unfortunately this
* is a bit tricky to implement for Handlers, but necessary to simplify this
* interface. */
static Reader* Create(Environment* env, const Handlers* handlers);
/* The reader's input; this is where descriptor.proto data should be sent. */
Sink* input();
/* Use to get the FileDefs that have been parsed. */
size_t file_count() const;
FileDef* file(size_t i) const;
/* Builds and returns handlers for the reader, owned by "owner." */
static Handlers* NewHandlers(const void* owner);
private:
UPB_DISALLOW_POD_OPS(Reader, upb::descriptor::Reader)
};
#endif
UPB_BEGIN_EXTERN_C
/* C API. */
upb_descreader *upb_descreader_create(upb_env *e, const upb_handlers *h);
upb_sink *upb_descreader_input(upb_descreader *r);
size_t upb_descreader_filecount(const upb_descreader *r);
upb_filedef *upb_descreader_file(const upb_descreader *r, size_t i);
const upb_handlers *upb_descreader_newhandlers(const void *owner);
UPB_END_EXTERN_C
#ifdef __cplusplus
/* C++ implementation details. ************************************************/
namespace upb {
namespace descriptor {
inline Reader* Reader::Create(Environment* e, const Handlers *h) {
return upb_descreader_create(e, h);
}
inline Sink* Reader::input() { return upb_descreader_input(this); }
inline size_t Reader::file_count() const {
return upb_descreader_filecount(this);
}
inline FileDef* Reader::file(size_t i) const {
return upb_descreader_file(this, i);
}
} /* namespace descriptor */
} /* namespace upb */
#endif
#endif /* UPB_DESCRIPTOR_H */
/* This file contains accessors for a set of compiled-in defs.
* Note that unlike Google's protobuf, it does *not* define
* generated classes or any other kind of data structure for
* actually storing protobufs. It only contains *defs* which
* let you reflect over a protobuf *schema*.
*/
/* This file was generated by upbc (the upb compiler) from the input
* file:
*
* upb/descriptor/descriptor.proto
*
* Do not edit -- your changes will be discarded when the file is
* regenerated. */
#ifndef UPB_DESCRIPTOR_DESCRIPTOR_PROTO_UPB_H_
#define UPB_DESCRIPTOR_DESCRIPTOR_PROTO_UPB_H_
UPB_BEGIN_EXTERN_C
/* Enums */
typedef enum {
google_protobuf_FieldDescriptorProto_LABEL_OPTIONAL = 1,
google_protobuf_FieldDescriptorProto_LABEL_REQUIRED = 2,
google_protobuf_FieldDescriptorProto_LABEL_REPEATED = 3
} google_protobuf_FieldDescriptorProto_Label;
typedef enum {
google_protobuf_FieldDescriptorProto_TYPE_DOUBLE = 1,
google_protobuf_FieldDescriptorProto_TYPE_FLOAT = 2,
google_protobuf_FieldDescriptorProto_TYPE_INT64 = 3,
google_protobuf_FieldDescriptorProto_TYPE_UINT64 = 4,
google_protobuf_FieldDescriptorProto_TYPE_INT32 = 5,
google_protobuf_FieldDescriptorProto_TYPE_FIXED64 = 6,
google_protobuf_FieldDescriptorProto_TYPE_FIXED32 = 7,
google_protobuf_FieldDescriptorProto_TYPE_BOOL = 8,
google_protobuf_FieldDescriptorProto_TYPE_STRING = 9,
google_protobuf_FieldDescriptorProto_TYPE_GROUP = 10,
google_protobuf_FieldDescriptorProto_TYPE_MESSAGE = 11,
google_protobuf_FieldDescriptorProto_TYPE_BYTES = 12,
google_protobuf_FieldDescriptorProto_TYPE_UINT32 = 13,
google_protobuf_FieldDescriptorProto_TYPE_ENUM = 14,
google_protobuf_FieldDescriptorProto_TYPE_SFIXED32 = 15,
google_protobuf_FieldDescriptorProto_TYPE_SFIXED64 = 16,
google_protobuf_FieldDescriptorProto_TYPE_SINT32 = 17,
google_protobuf_FieldDescriptorProto_TYPE_SINT64 = 18
} google_protobuf_FieldDescriptorProto_Type;
typedef enum {
google_protobuf_FieldOptions_STRING = 0,
google_protobuf_FieldOptions_CORD = 1,
google_protobuf_FieldOptions_STRING_PIECE = 2
} google_protobuf_FieldOptions_CType;
typedef enum {
google_protobuf_FieldOptions_JS_NORMAL = 0,
google_protobuf_FieldOptions_JS_STRING = 1,
google_protobuf_FieldOptions_JS_NUMBER = 2
} google_protobuf_FieldOptions_JSType;
typedef enum {
google_protobuf_FileOptions_SPEED = 1,
google_protobuf_FileOptions_CODE_SIZE = 2,
google_protobuf_FileOptions_LITE_RUNTIME = 3
} google_protobuf_FileOptions_OptimizeMode;
/* MessageDefs: call these functions to get a ref to a msgdef. */
const upb_msgdef *upbdefs_google_protobuf_DescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_DescriptorProto_ExtensionRange_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_DescriptorProto_ReservedRange_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_EnumDescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_EnumOptions_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_EnumValueDescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_EnumValueOptions_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_FieldDescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_FieldOptions_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_FileDescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_FileDescriptorSet_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_FileOptions_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_MessageOptions_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_MethodDescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_MethodOptions_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_OneofDescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_ServiceDescriptorProto_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_ServiceOptions_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_SourceCodeInfo_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_SourceCodeInfo_Location_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_UninterpretedOption_get(const void *owner);
const upb_msgdef *upbdefs_google_protobuf_UninterpretedOption_NamePart_get(const void *owner);
/* EnumDefs: call these functions to get a ref to an enumdef. */
const upb_enumdef *upbdefs_google_protobuf_FieldDescriptorProto_Label_get(const void *owner);
const upb_enumdef *upbdefs_google_protobuf_FieldDescriptorProto_Type_get(const void *owner);
const upb_enumdef *upbdefs_google_protobuf_FieldOptions_CType_get(const void *owner);
const upb_enumdef *upbdefs_google_protobuf_FieldOptions_JSType_get(const void *owner);
const upb_enumdef *upbdefs_google_protobuf_FileOptions_OptimizeMode_get(const void *owner);
/* Functions to test whether this message is of a certain type. */
UPB_INLINE bool upbdefs_google_protobuf_DescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.DescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_DescriptorProto_ExtensionRange_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.DescriptorProto.ExtensionRange") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_DescriptorProto_ReservedRange_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.DescriptorProto.ReservedRange") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_EnumDescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.EnumDescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_EnumOptions_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.EnumOptions") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_EnumValueDescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.EnumValueDescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_EnumValueOptions_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.EnumValueOptions") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FieldDescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.FieldDescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FieldOptions_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.FieldOptions") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FileDescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.FileDescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FileDescriptorSet_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.FileDescriptorSet") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FileOptions_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.FileOptions") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_MessageOptions_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.MessageOptions") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_MethodDescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.MethodDescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_MethodOptions_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.MethodOptions") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_OneofDescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.OneofDescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_ServiceDescriptorProto_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.ServiceDescriptorProto") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_ServiceOptions_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.ServiceOptions") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_SourceCodeInfo_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.SourceCodeInfo") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_SourceCodeInfo_Location_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.SourceCodeInfo.Location") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_UninterpretedOption_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.UninterpretedOption") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_UninterpretedOption_NamePart_is(const upb_msgdef *m) {
return strcmp(upb_msgdef_fullname(m), "google.protobuf.UninterpretedOption.NamePart") == 0;
}
/* Functions to test whether this enum is of a certain type. */
UPB_INLINE bool upbdefs_google_protobuf_FieldDescriptorProto_Label_is(const upb_enumdef *e) {
return strcmp(upb_enumdef_fullname(e), "google.protobuf.FieldDescriptorProto.Label") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FieldDescriptorProto_Type_is(const upb_enumdef *e) {
return strcmp(upb_enumdef_fullname(e), "google.protobuf.FieldDescriptorProto.Type") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FieldOptions_CType_is(const upb_enumdef *e) {
return strcmp(upb_enumdef_fullname(e), "google.protobuf.FieldOptions.CType") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FieldOptions_JSType_is(const upb_enumdef *e) {
return strcmp(upb_enumdef_fullname(e), "google.protobuf.FieldOptions.JSType") == 0;
}
UPB_INLINE bool upbdefs_google_protobuf_FileOptions_OptimizeMode_is(const upb_enumdef *e) {
return strcmp(upb_enumdef_fullname(e), "google.protobuf.FileOptions.OptimizeMode") == 0;
}
/* Functions to get a fielddef from a msgdef reference. */
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_ExtensionRange_f_end(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_ExtensionRange_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_ExtensionRange_f_start(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_ExtensionRange_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_ReservedRange_f_end(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_ReservedRange_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_ReservedRange_f_start(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_ReservedRange_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_enum_type(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 4); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_extension(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 6); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_extension_range(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 5); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_field(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_nested_type(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_oneof_decl(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 8); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_options(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 7); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_reserved_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 10); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_DescriptorProto_f_reserved_range(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m)); return upb_msgdef_itof(m, 9); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumDescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumDescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumDescriptorProto_f_options(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumDescriptorProto_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumDescriptorProto_f_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumDescriptorProto_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumOptions_f_allow_alias(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumOptions_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumOptions_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumOptions_is(m)); return upb_msgdef_itof(m, 999); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumValueDescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumValueDescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumValueDescriptorProto_f_number(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumValueDescriptorProto_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumValueDescriptorProto_f_options(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumValueDescriptorProto_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumValueOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumValueOptions_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_EnumValueOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_EnumValueOptions_is(m)); return upb_msgdef_itof(m, 999); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_default_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 7); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_extendee(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_json_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 10); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_label(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 4); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_number(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_oneof_index(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 9); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_options(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 8); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_type(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 5); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldDescriptorProto_f_type_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m)); return upb_msgdef_itof(m, 6); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldOptions_f_ctype(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldOptions_f_jstype(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m)); return upb_msgdef_itof(m, 6); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldOptions_f_lazy(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m)); return upb_msgdef_itof(m, 5); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldOptions_f_packed(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m)); return upb_msgdef_itof(m, 999); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FieldOptions_f_weak(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m)); return upb_msgdef_itof(m, 10); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_dependency(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_enum_type(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 5); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_extension(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 7); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_message_type(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 4); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_options(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 8); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_package(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_public_dependency(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 10); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_service(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 6); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_source_code_info(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 9); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_syntax(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 12); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorProto_f_weak_dependency(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m)); return upb_msgdef_itof(m, 11); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileDescriptorSet_f_file(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorSet_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_cc_enable_arenas(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 31); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_cc_generic_services(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 16); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_csharp_namespace(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 37); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 23); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_go_package(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 11); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_java_generate_equals_and_hash(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 20); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_java_generic_services(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 17); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_java_multiple_files(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 10); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_java_outer_classname(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 8); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_java_package(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_java_string_check_utf8(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 27); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_javanano_use_deprecated_package(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 38); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_objc_class_prefix(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 36); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_optimize_for(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 9); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_php_class_prefix(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 40); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_php_namespace(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 41); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_py_generic_services(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 18); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_FileOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m)); return upb_msgdef_itof(m, 999); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MessageOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MessageOptions_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MessageOptions_f_map_entry(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MessageOptions_is(m)); return upb_msgdef_itof(m, 7); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MessageOptions_f_message_set_wire_format(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MessageOptions_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MessageOptions_f_no_standard_descriptor_accessor(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MessageOptions_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MessageOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MessageOptions_is(m)); return upb_msgdef_itof(m, 999); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodDescriptorProto_f_client_streaming(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodDescriptorProto_is(m)); return upb_msgdef_itof(m, 5); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodDescriptorProto_f_input_type(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodDescriptorProto_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodDescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodDescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodDescriptorProto_f_options(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodDescriptorProto_is(m)); return upb_msgdef_itof(m, 4); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodDescriptorProto_f_output_type(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodDescriptorProto_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodDescriptorProto_f_server_streaming(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodDescriptorProto_is(m)); return upb_msgdef_itof(m, 6); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodOptions_is(m)); return upb_msgdef_itof(m, 33); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_MethodOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_MethodOptions_is(m)); return upb_msgdef_itof(m, 999); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_OneofDescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_OneofDescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_ServiceDescriptorProto_f_method(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_ServiceDescriptorProto_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_ServiceDescriptorProto_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_ServiceDescriptorProto_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_ServiceDescriptorProto_f_options(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_ServiceDescriptorProto_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_ServiceOptions_f_deprecated(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_ServiceOptions_is(m)); return upb_msgdef_itof(m, 33); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_ServiceOptions_f_uninterpreted_option(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_ServiceOptions_is(m)); return upb_msgdef_itof(m, 999); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_SourceCodeInfo_Location_f_leading_comments(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_Location_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_SourceCodeInfo_Location_f_leading_detached_comments(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_Location_is(m)); return upb_msgdef_itof(m, 6); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_SourceCodeInfo_Location_f_path(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_Location_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_SourceCodeInfo_Location_f_span(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_Location_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_SourceCodeInfo_Location_f_trailing_comments(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_Location_is(m)); return upb_msgdef_itof(m, 4); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_SourceCodeInfo_f_location(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_NamePart_f_is_extension(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_NamePart_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_NamePart_f_name_part(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_NamePart_is(m)); return upb_msgdef_itof(m, 1); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_f_aggregate_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m)); return upb_msgdef_itof(m, 8); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_f_double_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m)); return upb_msgdef_itof(m, 6); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_f_identifier_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m)); return upb_msgdef_itof(m, 3); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_f_name(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m)); return upb_msgdef_itof(m, 2); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_f_negative_int_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m)); return upb_msgdef_itof(m, 5); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_f_positive_int_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m)); return upb_msgdef_itof(m, 4); }
UPB_INLINE const upb_fielddef *upbdefs_google_protobuf_UninterpretedOption_f_string_value(const upb_msgdef *m) { UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m)); return upb_msgdef_itof(m, 7); }
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upbdefs {
namespace google {
namespace protobuf {
class DescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
DescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_is(m));
}
static DescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_DescriptorProto_get(&m);
return DescriptorProto(m, &m);
}
class ExtensionRange : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
ExtensionRange(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_ExtensionRange_is(m));
}
static ExtensionRange get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_DescriptorProto_ExtensionRange_get(&m);
return ExtensionRange(m, &m);
}
};
class ReservedRange : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
ReservedRange(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_DescriptorProto_ReservedRange_is(m));
}
static ReservedRange get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_DescriptorProto_ReservedRange_get(&m);
return ReservedRange(m, &m);
}
};
};
class EnumDescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
EnumDescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_EnumDescriptorProto_is(m));
}
static EnumDescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_EnumDescriptorProto_get(&m);
return EnumDescriptorProto(m, &m);
}
};
class EnumOptions : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
EnumOptions(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_EnumOptions_is(m));
}
static EnumOptions get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_EnumOptions_get(&m);
return EnumOptions(m, &m);
}
};
class EnumValueDescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
EnumValueDescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_EnumValueDescriptorProto_is(m));
}
static EnumValueDescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_EnumValueDescriptorProto_get(&m);
return EnumValueDescriptorProto(m, &m);
}
};
class EnumValueOptions : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
EnumValueOptions(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_EnumValueOptions_is(m));
}
static EnumValueOptions get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_EnumValueOptions_get(&m);
return EnumValueOptions(m, &m);
}
};
class FieldDescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
FieldDescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_is(m));
}
static FieldDescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_FieldDescriptorProto_get(&m);
return FieldDescriptorProto(m, &m);
}
class Label : public ::upb::reffed_ptr<const ::upb::EnumDef> {
public:
Label(const ::upb::EnumDef* e, const void *ref_donor = NULL)
: reffed_ptr(e, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_Label_is(e));
}
static Label get() {
const ::upb::EnumDef* e = upbdefs_google_protobuf_FieldDescriptorProto_Label_get(&e);
return Label(e, &e);
}
};
class Type : public ::upb::reffed_ptr<const ::upb::EnumDef> {
public:
Type(const ::upb::EnumDef* e, const void *ref_donor = NULL)
: reffed_ptr(e, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FieldDescriptorProto_Type_is(e));
}
static Type get() {
const ::upb::EnumDef* e = upbdefs_google_protobuf_FieldDescriptorProto_Type_get(&e);
return Type(e, &e);
}
};
};
class FieldOptions : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
FieldOptions(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_is(m));
}
static FieldOptions get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_FieldOptions_get(&m);
return FieldOptions(m, &m);
}
class CType : public ::upb::reffed_ptr<const ::upb::EnumDef> {
public:
CType(const ::upb::EnumDef* e, const void *ref_donor = NULL)
: reffed_ptr(e, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_CType_is(e));
}
static CType get() {
const ::upb::EnumDef* e = upbdefs_google_protobuf_FieldOptions_CType_get(&e);
return CType(e, &e);
}
};
class JSType : public ::upb::reffed_ptr<const ::upb::EnumDef> {
public:
JSType(const ::upb::EnumDef* e, const void *ref_donor = NULL)
: reffed_ptr(e, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FieldOptions_JSType_is(e));
}
static JSType get() {
const ::upb::EnumDef* e = upbdefs_google_protobuf_FieldOptions_JSType_get(&e);
return JSType(e, &e);
}
};
};
class FileDescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
FileDescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorProto_is(m));
}
static FileDescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_FileDescriptorProto_get(&m);
return FileDescriptorProto(m, &m);
}
};
class FileDescriptorSet : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
FileDescriptorSet(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FileDescriptorSet_is(m));
}
static FileDescriptorSet get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_FileDescriptorSet_get(&m);
return FileDescriptorSet(m, &m);
}
};
class FileOptions : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
FileOptions(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FileOptions_is(m));
}
static FileOptions get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_FileOptions_get(&m);
return FileOptions(m, &m);
}
class OptimizeMode : public ::upb::reffed_ptr<const ::upb::EnumDef> {
public:
OptimizeMode(const ::upb::EnumDef* e, const void *ref_donor = NULL)
: reffed_ptr(e, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_FileOptions_OptimizeMode_is(e));
}
static OptimizeMode get() {
const ::upb::EnumDef* e = upbdefs_google_protobuf_FileOptions_OptimizeMode_get(&e);
return OptimizeMode(e, &e);
}
};
};
class MessageOptions : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
MessageOptions(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_MessageOptions_is(m));
}
static MessageOptions get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_MessageOptions_get(&m);
return MessageOptions(m, &m);
}
};
class MethodDescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
MethodDescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_MethodDescriptorProto_is(m));
}
static MethodDescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_MethodDescriptorProto_get(&m);
return MethodDescriptorProto(m, &m);
}
};
class MethodOptions : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
MethodOptions(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_MethodOptions_is(m));
}
static MethodOptions get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_MethodOptions_get(&m);
return MethodOptions(m, &m);
}
};
class OneofDescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
OneofDescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_OneofDescriptorProto_is(m));
}
static OneofDescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_OneofDescriptorProto_get(&m);
return OneofDescriptorProto(m, &m);
}
};
class ServiceDescriptorProto : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
ServiceDescriptorProto(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_ServiceDescriptorProto_is(m));
}
static ServiceDescriptorProto get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_ServiceDescriptorProto_get(&m);
return ServiceDescriptorProto(m, &m);
}
};
class ServiceOptions : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
ServiceOptions(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_ServiceOptions_is(m));
}
static ServiceOptions get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_ServiceOptions_get(&m);
return ServiceOptions(m, &m);
}
};
class SourceCodeInfo : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
SourceCodeInfo(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_is(m));
}
static SourceCodeInfo get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_SourceCodeInfo_get(&m);
return SourceCodeInfo(m, &m);
}
class Location : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
Location(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_SourceCodeInfo_Location_is(m));
}
static Location get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_SourceCodeInfo_Location_get(&m);
return Location(m, &m);
}
};
};
class UninterpretedOption : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
UninterpretedOption(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_is(m));
}
static UninterpretedOption get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_UninterpretedOption_get(&m);
return UninterpretedOption(m, &m);
}
class NamePart : public ::upb::reffed_ptr<const ::upb::MessageDef> {
public:
NamePart(const ::upb::MessageDef* m, const void *ref_donor = NULL)
: reffed_ptr(m, ref_donor) {
UPB_ASSERT(upbdefs_google_protobuf_UninterpretedOption_NamePart_is(m));
}
static NamePart get() {
const ::upb::MessageDef* m = upbdefs_google_protobuf_UninterpretedOption_NamePart_get(&m);
return NamePart(m, &m);
}
};
};
} /* namespace protobuf */
} /* namespace google */
} /* namespace upbdefs */
#endif /* __cplusplus */
#endif /* UPB_DESCRIPTOR_DESCRIPTOR_PROTO_UPB_H_ */
/*
** Internal-only definitions for the decoder.
*/
#ifndef UPB_DECODER_INT_H_
#define UPB_DECODER_INT_H_
/*
** upb::pb::Decoder
**
** A high performance, streaming, resumable decoder for the binary protobuf
** format.
**
** This interface works the same regardless of what decoder backend is being
** used. A client of this class does not need to know whether decoding is using
** a JITted decoder (DynASM, LLVM, etc) or an interpreted decoder. By default,
** it will always use the fastest available decoder. However, you can call
** set_allow_jit(false) to disable any JIT decoder that might be available.
** This is primarily useful for testing purposes.
*/
#ifndef UPB_DECODER_H_
#define UPB_DECODER_H_
#ifdef __cplusplus
namespace upb {
namespace pb {
class CodeCache;
class Decoder;
class DecoderMethod;
class DecoderMethodOptions;
} /* namespace pb */
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::pb::CodeCache, upb_pbcodecache)
UPB_DECLARE_TYPE(upb::pb::Decoder, upb_pbdecoder)
UPB_DECLARE_TYPE(upb::pb::DecoderMethodOptions, upb_pbdecodermethodopts)
UPB_DECLARE_DERIVED_TYPE(upb::pb::DecoderMethod, upb::RefCounted,
upb_pbdecodermethod, upb_refcounted)
/* The maximum number of bytes we are required to buffer internally between
* calls to the decoder. The value is 14: a 5 byte unknown tag plus ten-byte
* varint, less one because we are buffering an incomplete value.
*
* Should only be used by unit tests. */
#define UPB_DECODER_MAX_RESIDUAL_BYTES 14
#ifdef __cplusplus
/* The parameters one uses to construct a DecoderMethod.
* TODO(haberman): move allowjit here? Seems more convenient for users.
* TODO(haberman): move this to be heap allocated for ABI stability. */
class upb::pb::DecoderMethodOptions {
public:
/* Parameter represents the destination handlers that this method will push
* to. */
explicit DecoderMethodOptions(const Handlers* dest_handlers);
/* Should the decoder push submessages to lazy handlers for fields that have
* them? The caller should set this iff the lazy handlers expect data that is
* in protobuf binary format and the caller wishes to lazy parse it. */
void set_lazy(bool lazy);
#else
struct upb_pbdecodermethodopts {
#endif
const upb_handlers *handlers;
bool lazy;
};
#ifdef __cplusplus
/* Represents the code to parse a protobuf according to a destination
* Handlers. */
class upb::pb::DecoderMethod {
public:
/* Include base methods from upb::ReferenceCounted. */
UPB_REFCOUNTED_CPPMETHODS
/* The destination handlers that are statically bound to this method.
* This method is only capable of outputting to a sink that uses these
* handlers. */
const Handlers* dest_handlers() const;
/* The input handlers for this decoder method. */
const BytesHandler* input_handler() const;
/* Whether this method is native. */
bool is_native() const;
/* Convenience method for generating a DecoderMethod without explicitly
* creating a CodeCache. */
static reffed_ptr<const DecoderMethod> New(const DecoderMethodOptions& opts);
private:
UPB_DISALLOW_POD_OPS(DecoderMethod, upb::pb::DecoderMethod)
};
#endif
/* Preallocation hint: decoder won't allocate more bytes than this when first
* constructed. This hint may be an overestimate for some build configurations.
* But if the decoder library is upgraded without recompiling the application,
* it may be an underestimate. */
#define UPB_PB_DECODER_SIZE 4416
#ifdef __cplusplus
/* A Decoder receives binary protobuf data on its input sink and pushes the
* decoded data to its output sink. */
class upb::pb::Decoder {
public:
/* Constructs a decoder instance for the given method, which must outlive this
* decoder. Any errors during parsing will be set on the given status, which
* must also outlive this decoder.
*
* The sink must match the given method. */
static Decoder* Create(Environment* env, const DecoderMethod* method,
Sink* output);
/* Returns the DecoderMethod this decoder is parsing from. */
const DecoderMethod* method() const;
/* The sink on which this decoder receives input. */
BytesSink* input();
/* Returns number of bytes successfully parsed.
*
* This can be useful for determining the stream position where an error
* occurred.
*
* This value may not be up-to-date when called from inside a parsing
* callback. */
uint64_t BytesParsed() const;
/* Gets/sets the parsing nexting limit. If the total number of nested
* submessages and repeated fields hits this limit, parsing will fail. This
* is a resource limit that controls the amount of memory used by the parsing
* stack.
*
* Setting the limit will fail if the parser is currently suspended at a depth
* greater than this, or if memory allocation of the stack fails. */
size_t max_nesting() const;
bool set_max_nesting(size_t max);
void Reset();
static const size_t kSize = UPB_PB_DECODER_SIZE;
private:
UPB_DISALLOW_POD_OPS(Decoder, upb::pb::Decoder)
};
#endif /* __cplusplus */
#ifdef __cplusplus
/* A class for caching protobuf processing code, whether bytecode for the
* interpreted decoder or machine code for the JIT.
*
* This class is not thread-safe.
*
* TODO(haberman): move this to be heap allocated for ABI stability. */
class upb::pb::CodeCache {
public:
CodeCache();
~CodeCache();
/* Whether the cache is allowed to generate machine code. Defaults to true.
* There is no real reason to turn it off except for testing or if you are
* having a specific problem with the JIT.
*
* Note that allow_jit = true does not *guarantee* that the code will be JIT
* compiled. If this platform is not supported or the JIT was not compiled
* in, the code may still be interpreted. */
bool allow_jit() const;
/* This may only be called when the object is first constructed, and prior to
* any code generation, otherwise returns false and does nothing. */
bool set_allow_jit(bool allow);
/* Returns a DecoderMethod that can push data to the given handlers.
* If a suitable method already exists, it will be returned from the cache.
*
* Specifying the destination handlers here allows the DecoderMethod to be
* statically bound to the destination handlers if possible, which can allow
* more efficient decoding. However the returned method may or may not
* actually be statically bound. But in all cases, the returned method can
* push data to the given handlers. */
const DecoderMethod *GetDecoderMethod(const DecoderMethodOptions& opts);
/* If/when someone needs to explicitly create a dynamically-bound
* DecoderMethod*, we can add a method to get it here. */
private:
UPB_DISALLOW_COPY_AND_ASSIGN(CodeCache)
#else
struct upb_pbcodecache {
#endif
bool allow_jit_;
/* Array of mgroups. */
upb_inttable groups;
};
UPB_BEGIN_EXTERN_C
upb_pbdecoder *upb_pbdecoder_create(upb_env *e,
const upb_pbdecodermethod *method,
upb_sink *output);
const upb_pbdecodermethod *upb_pbdecoder_method(const upb_pbdecoder *d);
upb_bytessink *upb_pbdecoder_input(upb_pbdecoder *d);
uint64_t upb_pbdecoder_bytesparsed(const upb_pbdecoder *d);
size_t upb_pbdecoder_maxnesting(const upb_pbdecoder *d);
bool upb_pbdecoder_setmaxnesting(upb_pbdecoder *d, size_t max);
void upb_pbdecoder_reset(upb_pbdecoder *d);
void upb_pbdecodermethodopts_init(upb_pbdecodermethodopts *opts,
const upb_handlers *h);
void upb_pbdecodermethodopts_setlazy(upb_pbdecodermethodopts *opts, bool lazy);
/* Include refcounted methods like upb_pbdecodermethod_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_pbdecodermethod, upb_pbdecodermethod_upcast)
const upb_handlers *upb_pbdecodermethod_desthandlers(
const upb_pbdecodermethod *m);
const upb_byteshandler *upb_pbdecodermethod_inputhandler(
const upb_pbdecodermethod *m);
bool upb_pbdecodermethod_isnative(const upb_pbdecodermethod *m);
const upb_pbdecodermethod *upb_pbdecodermethod_new(
const upb_pbdecodermethodopts *opts, const void *owner);
void upb_pbcodecache_init(upb_pbcodecache *c);
void upb_pbcodecache_uninit(upb_pbcodecache *c);
bool upb_pbcodecache_allowjit(const upb_pbcodecache *c);
bool upb_pbcodecache_setallowjit(upb_pbcodecache *c, bool allow);
const upb_pbdecodermethod *upb_pbcodecache_getdecodermethod(
upb_pbcodecache *c, const upb_pbdecodermethodopts *opts);
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upb {
namespace pb {
/* static */
inline Decoder* Decoder::Create(Environment* env, const DecoderMethod* m,
Sink* sink) {
return upb_pbdecoder_create(env, m, sink);
}
inline const DecoderMethod* Decoder::method() const {
return upb_pbdecoder_method(this);
}
inline BytesSink* Decoder::input() {
return upb_pbdecoder_input(this);
}
inline uint64_t Decoder::BytesParsed() const {
return upb_pbdecoder_bytesparsed(this);
}
inline size_t Decoder::max_nesting() const {
return upb_pbdecoder_maxnesting(this);
}
inline bool Decoder::set_max_nesting(size_t max) {
return upb_pbdecoder_setmaxnesting(this, max);
}
inline void Decoder::Reset() { upb_pbdecoder_reset(this); }
inline DecoderMethodOptions::DecoderMethodOptions(const Handlers* h) {
upb_pbdecodermethodopts_init(this, h);
}
inline void DecoderMethodOptions::set_lazy(bool lazy) {
upb_pbdecodermethodopts_setlazy(this, lazy);
}
inline const Handlers* DecoderMethod::dest_handlers() const {
return upb_pbdecodermethod_desthandlers(this);
}
inline const BytesHandler* DecoderMethod::input_handler() const {
return upb_pbdecodermethod_inputhandler(this);
}
inline bool DecoderMethod::is_native() const {
return upb_pbdecodermethod_isnative(this);
}
/* static */
inline reffed_ptr<const DecoderMethod> DecoderMethod::New(
const DecoderMethodOptions &opts) {
const upb_pbdecodermethod *m = upb_pbdecodermethod_new(&opts, &m);
return reffed_ptr<const DecoderMethod>(m, &m);
}
inline CodeCache::CodeCache() {
upb_pbcodecache_init(this);
}
inline CodeCache::~CodeCache() {
upb_pbcodecache_uninit(this);
}
inline bool CodeCache::allow_jit() const {
return upb_pbcodecache_allowjit(this);
}
inline bool CodeCache::set_allow_jit(bool allow) {
return upb_pbcodecache_setallowjit(this, allow);
}
inline const DecoderMethod *CodeCache::GetDecoderMethod(
const DecoderMethodOptions& opts) {
return upb_pbcodecache_getdecodermethod(this, &opts);
}
} /* namespace pb */
} /* namespace upb */
#endif /* __cplusplus */
#endif /* UPB_DECODER_H_ */
/* C++ names are not actually used since this type isn't exposed to users. */
#ifdef __cplusplus
namespace upb {
namespace pb {
class MessageGroup;
} /* namespace pb */
} /* namespace upb */
#endif
UPB_DECLARE_DERIVED_TYPE(upb::pb::MessageGroup, upb::RefCounted,
mgroup, upb_refcounted)
/* Opcode definitions. The canonical meaning of each opcode is its
* implementation in the interpreter (the JIT is written to match this).
*
* All instructions have the opcode in the low byte.
* Instruction format for most instructions is:
*
* +-------------------+--------+
* | arg (24) | op (8) |
* +-------------------+--------+
*
* Exceptions are indicated below. A few opcodes are multi-word. */
typedef enum {
/* Opcodes 1-8, 13, 15-18 parse their respective descriptor types.
* Arg for all of these is the upb selector for this field. */
#define T(type) OP_PARSE_ ## type = UPB_DESCRIPTOR_TYPE_ ## type
T(DOUBLE), T(FLOAT), T(INT64), T(UINT64), T(INT32), T(FIXED64), T(FIXED32),
T(BOOL), T(UINT32), T(SFIXED32), T(SFIXED64), T(SINT32), T(SINT64),
#undef T
OP_STARTMSG = 9, /* No arg. */
OP_ENDMSG = 10, /* No arg. */
OP_STARTSEQ = 11,
OP_ENDSEQ = 12,
OP_STARTSUBMSG = 14,
OP_ENDSUBMSG = 19,
OP_STARTSTR = 20,
OP_STRING = 21,
OP_ENDSTR = 22,
OP_PUSHTAGDELIM = 23, /* No arg. */
OP_PUSHLENDELIM = 24, /* No arg. */
OP_POP = 25, /* No arg. */
OP_SETDELIM = 26, /* No arg. */
OP_SETBIGGROUPNUM = 27, /* two words:
* | unused (24) | opc (8) |
* | groupnum (32) | */
OP_CHECKDELIM = 28,
OP_CALL = 29,
OP_RET = 30,
OP_BRANCH = 31,
/* Different opcodes depending on how many bytes expected. */
OP_TAG1 = 32, /* | match tag (16) | jump target (8) | opc (8) | */
OP_TAG2 = 33, /* | match tag (16) | jump target (8) | opc (8) | */
OP_TAGN = 34, /* three words: */
/* | unused (16) | jump target(8) | opc (8) | */
/* | match tag 1 (32) | */
/* | match tag 2 (32) | */
OP_SETDISPATCH = 35, /* N words: */
/* | unused (24) | opc | */
/* | upb_inttable* (32 or 64) | */
OP_DISPATCH = 36, /* No arg. */
OP_HALT = 37 /* No arg. */
} opcode;
#define OP_MAX OP_HALT
UPB_INLINE opcode getop(uint32_t instr) { return instr & 0xff; }
/* Method group; represents a set of decoder methods that had their code
* emitted together, and must therefore be freed together. Immutable once
* created. It is possible we may want to expose this to users at some point.
*
* Overall ownership of Decoder objects looks like this:
*
* +----------+
* | | <---> DecoderMethod
* | method |
* CodeCache ---> | group | <---> DecoderMethod
* | |
* | (mgroup) | <---> DecoderMethod
* +----------+
*/
struct mgroup {
upb_refcounted base;
/* Maps upb_msgdef/upb_handlers -> upb_pbdecodermethod. We own refs on the
* methods. */
upb_inttable methods;
/* When we add the ability to link to previously existing mgroups, we'll
* need an array of mgroups we reference here, and own refs on them. */
/* The bytecode for our methods, if any exists. Owned by us. */
uint32_t *bytecode;
uint32_t *bytecode_end;
#ifdef UPB_USE_JIT_X64
/* JIT-generated machine code, if any. */
upb_string_handlerfunc *jit_code;
/* The size of the jit_code (required to munmap()). */
size_t jit_size;
char *debug_info;
void *dl;
#endif
};
/* The maximum that any submessages can be nested. Matches proto2's limit.
* This specifies the size of the decoder's statically-sized array and therefore
* setting it high will cause the upb::pb::Decoder object to be larger.
*
* If necessary we can add a runtime-settable property to Decoder that allow
* this to be larger than the compile-time setting, but this would add
* complexity, particularly since we would have to decide how/if to give users
* the ability to set a custom memory allocation function. */
#define UPB_DECODER_MAX_NESTING 64
/* Internal-only struct used by the decoder. */
typedef struct {
/* Space optimization note: we store two pointers here that the JIT
* doesn't need at all; the upb_handlers* inside the sink and
* the dispatch table pointer. We can optimze so that the JIT uses
* smaller stack frames than the interpreter. The only thing we need
* to guarantee is that the fallback routines can find end_ofs. */
upb_sink sink;
/* The absolute stream offset of the end-of-frame delimiter.
* Non-delimited frames (groups and non-packed repeated fields) reuse the
* delimiter of their parent, even though the frame may not end there.
*
* NOTE: the JIT stores a slightly different value here for non-top frames.
* It stores the value relative to the end of the enclosed message. But the
* top frame is still stored the same way, which is important for ensuring
* that calls from the JIT into C work correctly. */
uint64_t end_ofs;
const uint32_t *base;
/* 0 indicates a length-delimited field.
* A positive number indicates a known group.
* A negative number indicates an unknown group. */
int32_t groupnum;
upb_inttable *dispatch; /* Not used by the JIT. */
} upb_pbdecoder_frame;
struct upb_pbdecodermethod {
upb_refcounted base;
/* While compiling, the base is relative in "ofs", after compiling it is
* absolute in "ptr". */
union {
uint32_t ofs; /* PC offset of method. */
void *ptr; /* Pointer to bytecode or machine code for this method. */
} code_base;
/* The decoder method group to which this method belongs. We own a ref.
* Owning a ref on the entire group is more coarse-grained than is strictly
* necessary; all we truly require is that methods we directly reference
* outlive us, while the group could contain many other messages we don't
* require. But the group represents the messages that were
* allocated+compiled together, so it makes the most sense to free them
* together also. */
const upb_refcounted *group;
/* Whether this method is native code or bytecode. */
bool is_native_;
/* The handler one calls to invoke this method. */
upb_byteshandler input_handler_;
/* The destination handlers this method is bound to. We own a ref. */
const upb_handlers *dest_handlers_;
/* Dispatch table -- used by both bytecode decoder and JIT when encountering a
* field number that wasn't the one we were expecting to see. See
* decoder.int.h for the layout of this table. */
upb_inttable dispatch;
};
struct upb_pbdecoder {
upb_env *env;
/* Our input sink. */
upb_bytessink input_;
/* The decoder method we are parsing with (owned). */
const upb_pbdecodermethod *method_;
size_t call_len;
const uint32_t *pc, *last;
/* Current input buffer and its stream offset. */
const char *buf, *ptr, *end, *checkpoint;
/* End of the delimited region, relative to ptr, NULL if not in this buf. */
const char *delim_end;
/* End of the delimited region, relative to ptr, end if not in this buf. */
const char *data_end;
/* Overall stream offset of "buf." */
uint64_t bufstart_ofs;
/* Buffer for residual bytes not parsed from the previous buffer. */
char residual[UPB_DECODER_MAX_RESIDUAL_BYTES];
char *residual_end;
/* Bytes of data that should be discarded from the input beore we start
* parsing again. We set this when we internally determine that we can
* safely skip the next N bytes, but this region extends past the current
* user buffer. */
size_t skip;
/* Stores the user buffer passed to our decode function. */
const char *buf_param;
size_t size_param;
const upb_bufhandle *handle;
/* Our internal stack. */
upb_pbdecoder_frame *stack, *top, *limit;
const uint32_t **callstack;
size_t stack_size;
upb_status *status;
#ifdef UPB_USE_JIT_X64
/* Used momentarily by the generated code to store a value while a user
* function is called. */
uint32_t tmp_len;
const void *saved_rsp;
#endif
};
/* Decoder entry points; used as handlers. */
void *upb_pbdecoder_startbc(void *closure, const void *pc, size_t size_hint);
void *upb_pbdecoder_startjit(void *closure, const void *hd, size_t size_hint);
size_t upb_pbdecoder_decode(void *closure, const void *hd, const char *buf,
size_t size, const upb_bufhandle *handle);
bool upb_pbdecoder_end(void *closure, const void *handler_data);
/* Decoder-internal functions that the JIT calls to handle fallback paths. */
int32_t upb_pbdecoder_resume(upb_pbdecoder *d, void *p, const char *buf,
size_t size, const upb_bufhandle *handle);
size_t upb_pbdecoder_suspend(upb_pbdecoder *d);
int32_t upb_pbdecoder_skipunknown(upb_pbdecoder *d, int32_t fieldnum,
uint8_t wire_type);
int32_t upb_pbdecoder_checktag_slow(upb_pbdecoder *d, uint64_t expected);
int32_t upb_pbdecoder_decode_varint_slow(upb_pbdecoder *d, uint64_t *u64);
int32_t upb_pbdecoder_decode_f32(upb_pbdecoder *d, uint32_t *u32);
int32_t upb_pbdecoder_decode_f64(upb_pbdecoder *d, uint64_t *u64);
void upb_pbdecoder_seterr(upb_pbdecoder *d, const char *msg);
/* Error messages that are shared between the bytecode and JIT decoders. */
extern const char *kPbDecoderStackOverflow;
extern const char *kPbDecoderSubmessageTooLong;
/* Access to decoderplan members needed by the decoder. */
const char *upb_pbdecoder_getopname(unsigned int op);
/* JIT codegen entry point. */
void upb_pbdecoder_jit(mgroup *group);
void upb_pbdecoder_freejit(mgroup *group);
UPB_REFCOUNTED_CMETHODS(mgroup, mgroup_upcast)
/* A special label that means "do field dispatch for this message and branch to
* wherever that takes you." */
#define LABEL_DISPATCH 0
/* A special slot in the dispatch table that stores the epilogue (ENDMSG and/or
* RET) for branching to when we find an appropriate ENDGROUP tag. */
#define DISPATCH_ENDMSG 0
/* It's important to use this invalid wire type instead of 0 (which is a valid
* wire type). */
#define NO_WIRE_TYPE 0xff
/* The dispatch table layout is:
* [field number] -> [ 48-bit offset ][ 8-bit wt2 ][ 8-bit wt1 ]
*
* If wt1 matches, jump to the 48-bit offset. If wt2 matches, lookup
* (UPB_MAX_FIELDNUMBER + fieldnum) and jump there.
*
* We need two wire types because of packed/non-packed compatibility. A
* primitive repeated field can use either wire type and be valid. While we
* could key the table on fieldnum+wiretype, the table would be 8x sparser.
*
* Storing two wire types in the primary value allows us to quickly rule out
* the second wire type without needing to do a separate lookup (this case is
* less common than an unknown field). */
UPB_INLINE uint64_t upb_pbdecoder_packdispatch(uint64_t ofs, uint8_t wt1,
uint8_t wt2) {
return (ofs << 16) | (wt2 << 8) | wt1;
}
UPB_INLINE void upb_pbdecoder_unpackdispatch(uint64_t dispatch, uint64_t *ofs,
uint8_t *wt1, uint8_t *wt2) {
*wt1 = (uint8_t)dispatch;
*wt2 = (uint8_t)(dispatch >> 8);
*ofs = dispatch >> 16;
}
/* All of the functions in decoder.c that return int32_t return values according
* to the following scheme:
* 1. negative values indicate a return code from the following list.
* 2. positive values indicate that error or end of buffer was hit, and
* that the decode function should immediately return the given value
* (the decoder state has already been suspended and is ready to be
* resumed). */
#define DECODE_OK -1
#define DECODE_MISMATCH -2 /* Used only from checktag_slow(). */
#define DECODE_ENDGROUP -3 /* Used only from checkunknown(). */
#define CHECK_RETURN(x) { int32_t ret = x; if (ret >= 0) return ret; }
#endif /* UPB_DECODER_INT_H_ */
/*
** A number of routines for varint manipulation (we keep them all around to
** have multiple approaches available for benchmarking).
*/
#ifndef UPB_VARINT_DECODER_H_
#define UPB_VARINT_DECODER_H_
#include <assert.h>
#include <stdint.h>
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif
#define UPB_MAX_WIRE_TYPE 5
/* The maximum number of bytes that it takes to encode a 64-bit varint. */
#define UPB_PB_VARINT_MAX_LEN 10
/* Array of the "native" (ie. non-packed-repeated) wire type for the given a
* descriptor type (upb_descriptortype_t). */
extern const uint8_t upb_pb_native_wire_types[];
/* Zig-zag encoding/decoding **************************************************/
UPB_INLINE int32_t upb_zzdec_32(uint32_t n) {
return (n >> 1) ^ -(int32_t)(n & 1);
}
UPB_INLINE int64_t upb_zzdec_64(uint64_t n) {
return (n >> 1) ^ -(int64_t)(n & 1);
}
UPB_INLINE uint32_t upb_zzenc_32(int32_t n) { return (n << 1) ^ (n >> 31); }
UPB_INLINE uint64_t upb_zzenc_64(int64_t n) { return (n << 1) ^ (n >> 63); }
/* Decoding *******************************************************************/
/* All decoding functions return this struct by value. */
typedef struct {
const char *p; /* NULL if the varint was unterminated. */
uint64_t val;
} upb_decoderet;
UPB_INLINE upb_decoderet upb_decoderet_make(const char *p, uint64_t val) {
upb_decoderet ret;
ret.p = p;
ret.val = val;
return ret;
}
upb_decoderet upb_vdecode_max8_branch32(upb_decoderet r);
upb_decoderet upb_vdecode_max8_branch64(upb_decoderet r);
/* Template for a function that checks the first two bytes with branching
* and dispatches 2-10 bytes with a separate function. Note that this may read
* up to 10 bytes, so it must not be used unless there are at least ten bytes
* left in the buffer! */
#define UPB_VARINT_DECODER_CHECK2(name, decode_max8_function) \
UPB_INLINE upb_decoderet upb_vdecode_check2_ ## name(const char *_p) { \
uint8_t *p = (uint8_t*)_p; \
upb_decoderet r; \
if ((*p & 0x80) == 0) { \
/* Common case: one-byte varint. */ \
return upb_decoderet_make(_p + 1, *p & 0x7fU); \
} \
r = upb_decoderet_make(_p + 2, (*p & 0x7fU) | ((*(p + 1) & 0x7fU) << 7)); \
if ((*(p + 1) & 0x80) == 0) { \
/* Two-byte varint. */ \
return r; \
} \
/* Longer varint, fallback to out-of-line function. */ \
return decode_max8_function(r); \
}
UPB_VARINT_DECODER_CHECK2(branch32, upb_vdecode_max8_branch32)
UPB_VARINT_DECODER_CHECK2(branch64, upb_vdecode_max8_branch64)
#undef UPB_VARINT_DECODER_CHECK2
/* Our canonical functions for decoding varints, based on the currently
* favored best-performing implementations. */
UPB_INLINE upb_decoderet upb_vdecode_fast(const char *p) {
if (sizeof(long) == 8)
return upb_vdecode_check2_branch64(p);
else
return upb_vdecode_check2_branch32(p);
}
/* Encoding *******************************************************************/
UPB_INLINE int upb_value_size(uint64_t val) {
#ifdef __GNUC__
int high_bit = 63 - __builtin_clzll(val); /* 0-based, undef if val == 0. */
#else
int high_bit = 0;
uint64_t tmp = val;
while(tmp >>= 1) high_bit++;
#endif
return val == 0 ? 1 : high_bit / 8 + 1;
}
/* Encodes a 64-bit varint into buf (which must be >=UPB_PB_VARINT_MAX_LEN
* bytes long), returning how many bytes were used.
*
* TODO: benchmark and optimize if necessary. */
UPB_INLINE size_t upb_vencode64(uint64_t val, char *buf) {
size_t i;
if (val == 0) { buf[0] = 0; return 1; }
i = 0;
while (val) {
uint8_t byte = val & 0x7fU;
val >>= 7;
if (val) byte |= 0x80U;
buf[i++] = byte;
}
return i;
}
UPB_INLINE size_t upb_varint_size(uint64_t val) {
char buf[UPB_PB_VARINT_MAX_LEN];
return upb_vencode64(val, buf);
}
/* Encodes a 32-bit varint, *not* sign-extended. */
UPB_INLINE uint64_t upb_vencode32(uint32_t val) {
char buf[UPB_PB_VARINT_MAX_LEN];
size_t bytes = upb_vencode64(val, buf);
uint64_t ret = 0;
UPB_ASSERT(bytes <= 5);
memcpy(&ret, buf, bytes);
UPB_ASSERT(ret <= 0xffffffffffU);
return ret;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* UPB_VARINT_DECODER_H_ */
/*
** upb::pb::Encoder (upb_pb_encoder)
**
** Implements a set of upb_handlers that write protobuf data to the binary wire
** format.
**
** This encoder implementation does not have any access to any out-of-band or
** precomputed lengths for submessages, so it must buffer submessages internally
** before it can emit the first byte.
*/
#ifndef UPB_ENCODER_H_
#define UPB_ENCODER_H_
#ifdef __cplusplus
namespace upb {
namespace pb {
class Encoder;
} /* namespace pb */
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::pb::Encoder, upb_pb_encoder)
#define UPB_PBENCODER_MAX_NESTING 100
/* upb::pb::Encoder ***********************************************************/
/* Preallocation hint: decoder won't allocate more bytes than this when first
* constructed. This hint may be an overestimate for some build configurations.
* But if the decoder library is upgraded without recompiling the application,
* it may be an underestimate. */
#define UPB_PB_ENCODER_SIZE 768
#ifdef __cplusplus
class upb::pb::Encoder {
public:
/* Creates a new encoder in the given environment. The Handlers must have
* come from NewHandlers() below. */
static Encoder* Create(Environment* env, const Handlers* handlers,
BytesSink* output);
/* The input to the encoder. */
Sink* input();
/* Creates a new set of handlers for this MessageDef. */
static reffed_ptr<const Handlers> NewHandlers(const MessageDef* msg);
static const size_t kSize = UPB_PB_ENCODER_SIZE;
private:
UPB_DISALLOW_POD_OPS(Encoder, upb::pb::Encoder)
};
#endif
UPB_BEGIN_EXTERN_C
const upb_handlers *upb_pb_encoder_newhandlers(const upb_msgdef *m,
const void *owner);
upb_sink *upb_pb_encoder_input(upb_pb_encoder *p);
upb_pb_encoder* upb_pb_encoder_create(upb_env* e, const upb_handlers* h,
upb_bytessink* output);
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upb {
namespace pb {
inline Encoder* Encoder::Create(Environment* env, const Handlers* handlers,
BytesSink* output) {
return upb_pb_encoder_create(env, handlers, output);
}
inline Sink* Encoder::input() {
return upb_pb_encoder_input(this);
}
inline reffed_ptr<const Handlers> Encoder::NewHandlers(
const upb::MessageDef *md) {
const Handlers* h = upb_pb_encoder_newhandlers(md, &h);
return reffed_ptr<const Handlers>(h, &h);
}
} /* namespace pb */
} /* namespace upb */
#endif
#endif /* UPB_ENCODER_H_ */
/*
** upb's core components like upb_decoder and upb_msg are carefully designed to
** avoid depending on each other for maximum orthogonality. In other words,
** you can use a upb_decoder to decode into *any* kind of structure; upb_msg is
** just one such structure. A upb_msg can be serialized/deserialized into any
** format, protobuf binary format is just one such format.
**
** However, for convenience we provide functions here for doing common
** operations like deserializing protobuf binary format into a upb_msg. The
** compromise is that this file drags in almost all of upb as a dependency,
** which could be undesirable if you're trying to use a trimmed-down build of
** upb.
**
** While these routines are convenient, they do not reuse any encoding/decoding
** state. For example, if a decoder is JIT-based, it will be re-JITted every
** time these functions are called. For this reason, if you are parsing lots
** of data and efficiency is an issue, these may not be the best functions to
** use (though they are useful for prototyping, before optimizing).
*/
#ifndef UPB_GLUE_H
#define UPB_GLUE_H
#include <stdbool.h>
#ifdef __cplusplus
#include <vector>
extern "C" {
#endif
/* Loads a binary descriptor and returns a NULL-terminated array of unfrozen
* filedefs. The caller owns the returned array, which must be freed with
* upb_gfree(). */
upb_filedef **upb_loaddescriptor(const char *buf, size_t n, const void *owner,
upb_status *status);
#ifdef __cplusplus
} /* extern "C" */
namespace upb {
inline bool LoadDescriptor(const char* buf, size_t n, Status* status,
std::vector<reffed_ptr<FileDef> >* files) {
FileDef** parsed_files = upb_loaddescriptor(buf, n, &parsed_files, status);
if (parsed_files) {
FileDef** p = parsed_files;
while (*p) {
files->push_back(reffed_ptr<FileDef>(*p, &parsed_files));
++p;
}
free(parsed_files);
return true;
} else {
return false;
}
}
/* Templated so it can accept both string and std::string. */
template <typename T>
bool LoadDescriptor(const T& desc, Status* status,
std::vector<reffed_ptr<FileDef> >* files) {
return LoadDescriptor(desc.c_str(), desc.size(), status, files);
}
} /* namespace upb */
#endif
#endif /* UPB_GLUE_H */
/*
** upb::pb::TextPrinter (upb_textprinter)
**
** Handlers for writing to protobuf text format.
*/
#ifndef UPB_TEXT_H_
#define UPB_TEXT_H_
#ifdef __cplusplus
namespace upb {
namespace pb {
class TextPrinter;
} /* namespace pb */
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::pb::TextPrinter, upb_textprinter)
#ifdef __cplusplus
class upb::pb::TextPrinter {
public:
/* The given handlers must have come from NewHandlers(). It must outlive the
* TextPrinter. */
static TextPrinter *Create(Environment *env, const upb::Handlers *handlers,
BytesSink *output);
void SetSingleLineMode(bool single_line);
Sink* input();
/* If handler caching becomes a requirement we can add a code cache as in
* decoder.h */
static reffed_ptr<const Handlers> NewHandlers(const MessageDef* md);
};
#endif
UPB_BEGIN_EXTERN_C
/* C API. */
upb_textprinter *upb_textprinter_create(upb_env *env, const upb_handlers *h,
upb_bytessink *output);
void upb_textprinter_setsingleline(upb_textprinter *p, bool single_line);
upb_sink *upb_textprinter_input(upb_textprinter *p);
const upb_handlers *upb_textprinter_newhandlers(const upb_msgdef *m,
const void *owner);
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upb {
namespace pb {
inline TextPrinter *TextPrinter::Create(Environment *env,
const upb::Handlers *handlers,
BytesSink *output) {
return upb_textprinter_create(env, handlers, output);
}
inline void TextPrinter::SetSingleLineMode(bool single_line) {
upb_textprinter_setsingleline(this, single_line);
}
inline Sink* TextPrinter::input() {
return upb_textprinter_input(this);
}
inline reffed_ptr<const Handlers> TextPrinter::NewHandlers(
const MessageDef *md) {
const Handlers* h = upb_textprinter_newhandlers(md, &h);
return reffed_ptr<const Handlers>(h, &h);
}
} /* namespace pb */
} /* namespace upb */
#endif
#endif /* UPB_TEXT_H_ */
/*
** upb::json::Parser (upb_json_parser)
**
** Parses JSON according to a specific schema.
** Support for parsing arbitrary JSON (schema-less) will be added later.
*/
#ifndef UPB_JSON_PARSER_H_
#define UPB_JSON_PARSER_H_
#ifdef __cplusplus
namespace upb {
namespace json {
class Parser;
class ParserMethod;
} /* namespace json */
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::json::Parser, upb_json_parser)
UPB_DECLARE_DERIVED_TYPE(upb::json::ParserMethod, upb::RefCounted,
upb_json_parsermethod, upb_refcounted)
/* upb::json::Parser **********************************************************/
/* Preallocation hint: parser won't allocate more bytes than this when first
* constructed. This hint may be an overestimate for some build configurations.
* But if the parser library is upgraded without recompiling the application,
* it may be an underestimate. */
#define UPB_JSON_PARSER_SIZE 4112
#ifdef __cplusplus
/* Parses an incoming BytesStream, pushing the results to the destination
* sink. */
class upb::json::Parser {
public:
static Parser* Create(Environment* env, const ParserMethod* method,
Sink* output);
BytesSink* input();
private:
UPB_DISALLOW_POD_OPS(Parser, upb::json::Parser)
};
class upb::json::ParserMethod {
public:
/* Include base methods from upb::ReferenceCounted. */
UPB_REFCOUNTED_CPPMETHODS
/* Returns handlers for parsing according to the specified schema. */
static reffed_ptr<const ParserMethod> New(const upb::MessageDef* md);
/* The destination handlers that are statically bound to this method.
* This method is only capable of outputting to a sink that uses these
* handlers. */
const Handlers* dest_handlers() const;
/* The input handlers for this decoder method. */
const BytesHandler* input_handler() const;
private:
UPB_DISALLOW_POD_OPS(ParserMethod, upb::json::ParserMethod)
};
#endif
UPB_BEGIN_EXTERN_C
upb_json_parser* upb_json_parser_create(upb_env* e,
const upb_json_parsermethod* m,
upb_sink* output);
upb_bytessink *upb_json_parser_input(upb_json_parser *p);
upb_json_parsermethod* upb_json_parsermethod_new(const upb_msgdef* md,
const void* owner);
const upb_handlers *upb_json_parsermethod_desthandlers(
const upb_json_parsermethod *m);
const upb_byteshandler *upb_json_parsermethod_inputhandler(
const upb_json_parsermethod *m);
/* Include refcounted methods like upb_json_parsermethod_ref(). */
UPB_REFCOUNTED_CMETHODS(upb_json_parsermethod, upb_json_parsermethod_upcast)
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upb {
namespace json {
inline Parser* Parser::Create(Environment* env, const ParserMethod* method,
Sink* output) {
return upb_json_parser_create(env, method, output);
}
inline BytesSink* Parser::input() {
return upb_json_parser_input(this);
}
inline const Handlers* ParserMethod::dest_handlers() const {
return upb_json_parsermethod_desthandlers(this);
}
inline const BytesHandler* ParserMethod::input_handler() const {
return upb_json_parsermethod_inputhandler(this);
}
/* static */
inline reffed_ptr<const ParserMethod> ParserMethod::New(
const MessageDef* md) {
const upb_json_parsermethod *m = upb_json_parsermethod_new(md, &m);
return reffed_ptr<const ParserMethod>(m, &m);
}
} /* namespace json */
} /* namespace upb */
#endif
#endif /* UPB_JSON_PARSER_H_ */
/*
** upb::json::Printer
**
** Handlers that emit JSON according to a specific protobuf schema.
*/
#ifndef UPB_JSON_TYPED_PRINTER_H_
#define UPB_JSON_TYPED_PRINTER_H_
#ifdef __cplusplus
namespace upb {
namespace json {
class Printer;
} /* namespace json */
} /* namespace upb */
#endif
UPB_DECLARE_TYPE(upb::json::Printer, upb_json_printer)
/* upb::json::Printer *********************************************************/
#define UPB_JSON_PRINTER_SIZE 176
#ifdef __cplusplus
/* Prints an incoming stream of data to a BytesSink in JSON format. */
class upb::json::Printer {
public:
static Printer* Create(Environment* env, const upb::Handlers* handlers,
BytesSink* output);
/* The input to the printer. */
Sink* input();
/* Returns handlers for printing according to the specified schema.
* If preserve_proto_fieldnames is true, the output JSON will use the
* original .proto field names (ie. {"my_field":3}) instead of using
* camelCased names, which is the default: (eg. {"myField":3}). */
static reffed_ptr<const Handlers> NewHandlers(const upb::MessageDef* md,
bool preserve_proto_fieldnames);
static const size_t kSize = UPB_JSON_PRINTER_SIZE;
private:
UPB_DISALLOW_POD_OPS(Printer, upb::json::Printer)
};
#endif
UPB_BEGIN_EXTERN_C
/* Native C API. */
upb_json_printer *upb_json_printer_create(upb_env *e, const upb_handlers *h,
upb_bytessink *output);
upb_sink *upb_json_printer_input(upb_json_printer *p);
const upb_handlers *upb_json_printer_newhandlers(const upb_msgdef *md,
bool preserve_fieldnames,
const void *owner);
UPB_END_EXTERN_C
#ifdef __cplusplus
namespace upb {
namespace json {
inline Printer* Printer::Create(Environment* env, const upb::Handlers* handlers,
BytesSink* output) {
return upb_json_printer_create(env, handlers, output);
}
inline Sink* Printer::input() { return upb_json_printer_input(this); }
inline reffed_ptr<const Handlers> Printer::NewHandlers(
const upb::MessageDef *md, bool preserve_proto_fieldnames) {
const Handlers* h = upb_json_printer_newhandlers(
md, preserve_proto_fieldnames, &h);
return reffed_ptr<const Handlers>(h, &h);
}
} /* namespace json */
} /* namespace upb */
#endif
#endif /* UPB_JSON_TYPED_PRINTER_H_ */
