diff options
Diffstat (limited to 'third_party/protobuf/php/ext/google/protobuf/upb.h')
| -rw-r--r-- | third_party/protobuf/php/ext/google/protobuf/upb.h | 8875 |
1 files changed, 0 insertions, 8875 deletions
diff --git a/third_party/protobuf/php/ext/google/protobuf/upb.h b/third_party/protobuf/php/ext/google/protobuf/upb.h deleted file mode 100644 index 78f255f947..0000000000 --- a/third_party/protobuf/php/ext/google/protobuf/upb.h +++ /dev/null @@ -1,8875 +0,0 @@ -// Amalgamated source file -/* -** 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_ - -// php.h intentionally defined NDEBUG. We have to define this macro in order to -// be used together with php.h -#ifndef NDEBUG -#define NDEBUG -#endif - -#include <stdint.h> -#include <string.h> -/* -** 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 - -/* 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 - - -/* 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_arena *upb_env_arena(upb_env *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_ */ - -#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); - - /* 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); -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_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 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_ */ -/* -** 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; - upb_syntax_t syntax; - - upb_inttable defs; - upb_inttable deps; -}; - -extern const struct upb_refcounted_vtbl upb_filedef_vtbl; - -#endif /* UPB_STATICINIT_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_STATIC_SELECTOR_COUNT 2 - -/* 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_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_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_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 -/* -** 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_ - - -#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. */ - -/* Gets the factory for this layout */ -upb_msgfactory *upb_msglayout_factory(const upb_msglayout *l); - -/* Get the msglayout for a submessage. This requires that this field is a - * submessage, ie. upb_fielddef_issubmsg(upb_msglayout_msgdef(l)) == true. - * - * Since map entry messages don't have layouts, if upb_fielddef_ismap(f) == true - * then this function will return the layout for the map's value. It requires - * that the value type of the map field is a submessage. */ -const upb_msglayout *upb_msglayout_sublayout(const upb_msglayout *l, - const upb_fielddef *f); - -/* Returns the msgdef for this msglayout. */ -const upb_msgdef *upb_msglayout_msgdef(const upb_msglayout *l); - - -/** 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_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; - struct { - const char *ptr; - size_t len; - } 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*) - -#undef ACCESSORS - -UPB_INLINE upb_msgval upb_msgval_str(const char *ptr, size_t len) { - upb_msgval ret; - ret.str.ptr = ptr; - ret.str.len = len; - return ret; -} - -UPB_INLINE const char* upb_msgval_getstr(upb_msgval val) { - return val.str.ptr; -} - -UPB_INLINE size_t upb_msgval_getstrlen(upb_msgval val) { - return val.str.len; -} - - -/** 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_uninit() does *not* free any submessages, maps, - * or arrays referred to by this message's fields. You must free them manually - * yourself. */ -void upb_msg_init(upb_msg *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. */ -upb_alloc *upb_msg_alloc(const upb_msg *msg, const upb_msglayout *l); - -/* 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, - const upb_fielddef *f, - const upb_msglayout *l); - -/* May only be called for fields where upb_fielddef_haspresence(f) == true. */ -bool upb_msg_has(const upb_msg *msg, - const upb_fielddef *f, - const upb_msglayout *l); - -/* Returns NULL if no field in the oneof is set. */ -const upb_fielddef *upb_msg_getoneofcase(const upb_msg *msg, - const upb_oneofdef *o, - const upb_msglayout *l); - -/* Returns true if any field in the oneof is set. */ -bool upb_msg_hasoneof(const upb_msg *msg, - const upb_oneofdef *o, - 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. - */ -bool upb_msg_set(upb_msg *msg, - const upb_fielddef *f, - 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, - const upb_fielddef *f, - const upb_msglayout *l); - -/* Clears all fields in the oneof such that none of them are set. */ -bool upb_msg_clearoneof(upb_msg *msg, - const upb_oneofdef *o, - 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); - -UPB_END_EXTERN_C - -#endif /* UPB_MSG_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_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 - -/* 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; - -#define UPB_MAX_WIRE_TYPE 5 - -/* The maximum number of bytes that it takes to encode a 64-bit varint. - * Note that with a better encoding this could be 9 (TODO: write up a - * wiki document about this). */ -#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; -} - -/* Four functions for decoding a varint of at most eight bytes. They are all - * functionally identical, but are implemented in different ways and likely have - * different performance profiles. We keep them around for performance testing. - * - * Note that these functions may not read byte-by-byte, so they must not be used - * unless there are at least eight bytes left in the buffer! */ -upb_decoderet upb_vdecode_max8_branch32(upb_decoderet r); -upb_decoderet upb_vdecode_max8_branch64(upb_decoderet r); -upb_decoderet upb_vdecode_max8_wright(upb_decoderet r); -upb_decoderet upb_vdecode_max8_massimino(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) -UPB_VARINT_DECODER_CHECK2(wright, upb_vdecode_max8_wright) -UPB_VARINT_DECODER_CHECK2(massimino, upb_vdecode_max8_massimino) -#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); -} - -UPB_INLINE upb_decoderet upb_vdecode_max8_fast(upb_decoderet r) { - return upb_vdecode_max8_massimino(r); -} - - -/* 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_ */ |