More incremental work; ported some of upbc.

pull/13171/head
Joshua Haberman 15 years ago
parent 602e093504
commit e5debfa1c9
  1. 4
      src/upb.c
  2. 18
      src/upb.h
  3. 99
      src/upb_data.h
  4. 4
      src/upb_def.c
  5. 2
      src/upb_def.h
  6. 4
      src/upb_parse.c
  7. 2
      src/upb_table.h
  8. 4
      src/upb_text.h
  9. 134
      tools/upbc.c

@ -32,8 +32,8 @@ struct upb_type_info upb_type_info[] = {
TYPE_INFO(SFIXED64, UPB_WIRE_TYPE_64BIT, int64_t)
TYPE_INFO(SINT32, UPB_WIRE_TYPE_VARINT, int32_t)
TYPE_INFO(SINT64, UPB_WIRE_TYPE_VARINT, int64_t)
TYPE_INFO(STRING, UPB_WIRE_TYPE_DELIMITED, struct upb_string*)
TYPE_INFO(BYTES, UPB_WIRE_TYPE_DELIMITED, struct upb_string*)
TYPE_INFO(STRING, UPB_WIRE_TYPE_DELIMITED, union upb_string*)
TYPE_INFO(BYTES, UPB_WIRE_TYPE_DELIMITED, union upb_string*)
};
void upb_seterr(struct upb_status *status, enum upb_status_code code,

@ -122,9 +122,9 @@ struct upb_tag {
/* Polymorphic values of .proto types *****************************************/
struct upb_string;
struct upb_array;
struct upb_msg;
union upb_string;
union upb_array;
union upb_msg;
// A single .proto value. The owner must have an out-of-band way of knowing
// the type, so that it knows which union member to use.
@ -136,9 +136,9 @@ union upb_value {
uint32_t uint32;
uint64_t uint64;
bool _bool;
struct upb_string *str;
struct upb_array *arr;
struct upb_msg *msg;
union upb_string *str;
union upb_array *arr;
union upb_msg *msg;
};
// A pointer to a .proto value. The owner must have an out-of-band way of
@ -151,9 +151,9 @@ union upb_value_ptr {
uint32_t *uint32;
uint64_t *uint64;
bool *_bool;
struct upb_string **str;
struct upb_array **arr;
struct upb_msg **msg;
union upb_string **str;
union upb_array **arr;
union upb_msg **msg;
void *_void;
};

@ -8,7 +8,15 @@
* protobufs).
*
* The members of all structs should be considered private. Access should
* only happen through the provided functions. */
* only happen through the provided functions.
*
* Unlike Google's protobuf, messages contain *pointers* to strings and arrays
* instead of including them by value. This makes unused strings and arrays
* use less memory, and lets the strings and arrays have multiple possible
* representations (for example, a string could be a slice). It also gives
* us more flexibility wrt refcounting. The cost is that when a field *is*
* being used, the net memory usage is one pointer more than if we had
* included the thing directly. */
#ifndef UPB_DATA_H
#define UPB_DATA_H
@ -189,7 +197,7 @@ typedef struct {
uint32_t byte_size;
} upb_refcounted_string;
typedef union {
typedef union upb_string {
upb_norefcount_string norefcount;
upb_string_common common;
upb_refcounted_string refcounted;
@ -197,12 +205,12 @@ typedef union {
// Returns a newly constructed, refcounted string which starts out empty.
// Caller owns one ref on it. The returned string will not be frozen.
upb_string *upb_string_new();
upb_string *upb_string_new(void);
// Creates a new string which is a duplicate of the given string. If
// refcounted is true, the new string is refcounted, otherwise the caller
// has exlusive ownership of it.
INLINE upb_string *upb_strdup(upb_string *s, bool refcounted);
INLINE upb_string *upb_strdup(upb_string *s);
// INTERNAL-ONLY:
// Frees the given string, alone with any memory the string owned.
@ -213,7 +221,7 @@ void _upb_string_free(upb_string *s);
// were incompatible with src's.
INLINE upb_string *upb_string_getref(upb_string *s, int ref_flags) {
if(_upb_data_incref(&s->common.base, ref_flags)) return s;
return upb_strdup(s, true);
return upb_strdup(s);
}
// The caller releases a ref on src, which it must previously have owned a ref
@ -227,6 +235,8 @@ INLINE void upb_string_unref(upb_string *s) {
// not be frozen otherwise the program will assert-fail or abort().
char *upb_string_getrwbuf(upb_string *s, upb_strlen_t byte_len);
void upb_string_resize(upb_string *s, upb_strlen_t len);
INLINE void upb_string_clear(upb_string *s) {
upb_string_getrwbuf(s, 0);
}
@ -270,12 +280,20 @@ INLINE void upb_strcpy(upb_string *dest, upb_string *src) {
memcpy(upb_string_getrwbuf(dest, src_len), upb_string_getrobuf(src), src_len);
}
INLINE upb_string *upb_strdup(upb_string *s, bool refcounted) {
upb_string *copy = upb_string_new(refcounted);
INLINE upb_string *upb_strdup(upb_string *s) {
upb_string *copy = upb_string_new();
upb_strcpy(copy, s);
return copy;
}
INLINE upb_string *upb_strdupc(const char *src) {
upb_string *copy = upb_string_new();
upb_strlen_t len = strlen(src);
char *buf = upb_string_getrwbuf(copy, len);
memcpy(buf, src, len);
return copy;
}
// Appends 'append' to 's' in-place, resizing s if necessary.
INLINE void upb_strcat(upb_string *s, upb_string *append) {
upb_strlen_t s_len = upb_strlen(s);
@ -290,7 +308,7 @@ INLINE void upb_strcat(upb_string *s, upb_string *append) {
// the original string data instead of copying it. Both now and in the future,
// the caller owns a ref on whatever is returned.
INLINE upb_string *upb_strslice(upb_string *s, int offset, int len) {
upb_string *slice = upb_string_new(true);
upb_string *slice = upb_string_new();
len = UPB_MIN((upb_strlen_t)len, upb_strlen(s) - (upb_strlen_t)offset);
memcpy(upb_string_getrwbuf(slice, len), upb_string_getrobuf(s) + offset, len);
return slice;
@ -304,7 +322,7 @@ upb_string *upb_strreadfile(const char *filename);
// must not dynamically allocate this type.
typedef upb_string upb_static_string;
#define UPB_STRLIT_LEN(str, len) {0 | UPB_DATA_FROZEN, len, str}
#define UPB_STRLIT(str) {{{0 | UPB_DATA_FROZEN}, sizeof(str), str}}
#define UPB_STRLIT(str) {{0 | UPB_DATA_FROZEN, sizeof(str), str}}
// Allows using upb_strings in printf, ie:
// upb_string str = UPB_STRLIT("Hello, World!\n");
@ -316,33 +334,50 @@ typedef upb_string upb_static_string;
typedef uint32_t upb_arraylen_t;
// The members of this struct are private. Access should only be through the
// associated functions.
// The comments attached to upb_string above also apply here.
typedef struct {
upb_data base;
upb_arraylen_t len;
union upb_value_ptr elements;
} upb_array_common;
typedef struct {
uint32_t size_and_flags;
upb_arraylen_t len;
union upb_value_ptr elements;
} upb_norefcount_array;
typedef struct {
unsigned int size:29; // How many bytes we own, 0 if we don't own.
bool is_heap_allocated:1;
bool is_frozen:1;
bool has_refcount:1;
upb_data base;
upb_arraylen_t len;
union upb_value_ptr *elements;
union upb_value_ptr elements;
upb_arraylen_t size;
} upb_refcounted_array;
typedef union upb_array {
upb_norefcount_array norefcount;
upb_array_common common;
upb_refcounted_array refcounted;
} upb_array;
// This type can be used either to perform read-only access on an array,
// or to statically define a non-reference-counted static array.
#define UPB_DEFINE_MSG_ARRAY(type) \
typedef struct type ## array { \
unsigned int size:29; \
bool is_heap_allocated:1; \
bool is_frozen:1;\
bool has_refcount:1;\
typedef struct type ## _array { \
upb_data base; \
upb_arraylen_t len;\
type **elements; \
} type ## array; \
} type ## _array; \
#define UPB_MSG_ARRAY(type) struct type ## array
#define UPB_MSG_ARRAY(type) struct type ## _array
// Constructs a newly-allocated array, which starts out empty. Caller owns one
// ref on it.
// Constructs a newly-allocated, reference-counted array which starts out
// empty. Caller owns one ref on it.
upb_array *upb_array_new(void);
union upb_value upb_array_get(upb_array *a, struct upb_fielddef *f, int elem);
#if 0
// Returns an array to which caller owns a ref, and contains the same contents
// as src. The returned value may be a copy of src, if the requested flags
// were incompatible with src's.
@ -358,12 +393,6 @@ INLINE void upb_array_unref(upb_array *a, struct upb_fielddef *f);
INLINE void upb_array_set(upb_array *a, struct upb_fielddef *f, int elem,
union upb_value val);
// Note that the caller does *not* own a ref on the returned value.
INLINE union upb_value upb_array_get(upb_array *a, struct upb_fielddef *f,
int elem);
INLINE union upb_value upb_array_getmutable(upb_array *a,
struct upb_fielddef *f, int elem,
union upb_value val);
// Note that array_append will attempt to take a reference on the given value,
// so to avoid a copy use append_default and get.
@ -371,15 +400,16 @@ INLINE void upb_array_append(upb_array *a, struct upb_fielddef *f,
union upb_value val);
INLINE void upb_array_append_default(upb_array *a, struct upb_fielddef *f,
union upb_value val);
#endif
// Returns the current number of elements in the array.
INLINE size_t upb_array_len(upb_array *a) {
return a->len;
return a->common.len;
}
/* upb_msg ********************************************************************/
typedef struct {
typedef union upb_msg {
uint8_t data[1];
} upb_msg;
@ -390,13 +420,12 @@ void upb_msg_unref(upb_msg *msg, struct upb_msgdef *md);
// Tests whether the given field is explicitly set, or whether it will return
// a default.
bool upb_msg_isset(upb_msg *msg, struct upb_fielddef *f);
bool upb_msg_has(upb_msg *msg, struct upb_fielddef *f);
// Returns the current value if set, or the default value if not set, of the
// specified field. The mutable version will first replace the value with a
// mutable copy if it is not already mutable.
union upb_value upb_msg_get(upb_msg *msg, struct upb_fielddef *f);
union upb_value upb_msg_getmutable(upb_msg *msg, struct upb_fielddef *f);
// Sets the given field to the given value. The msg will take a ref on val,
// and will drop a ref on whatever was there before.

@ -437,7 +437,7 @@ static struct symtab_ent *resolve(struct upb_strtable *t,
return e;
} else {
// Remove components from base until we find an entry or run out.
upb_string *sym_str = upb_string_new(true);
upb_string *sym_str = upb_string_new();
int baselen = upb_strlen(base);
while(1) {
// sym_str = base[0...base_len] + UPB_SYMBOL_SEPARATOR + symbol
@ -461,7 +461,7 @@ static struct symtab_ent *resolve(struct upb_strtable *t,
* join("", "Baz") -> "Baz"
* Caller owns a ref on the returned string. */
static upb_string *join(upb_string *base, upb_string *name) {
upb_string *joined = upb_strdup(base, true);
upb_string *joined = upb_strdup(base);
upb_strlen_t len = upb_strlen(joined);
if(len > 0) {
upb_string_getrwbuf(joined, len + 1)[len] = UPB_SYMBOL_SEPARATOR;

@ -173,7 +173,7 @@ struct google_protobuf_DescriptorProto;
struct upb_msgdef {
struct upb_def base;
upb_atomic_refcount_t cycle_refcount;
struct upb_msg *default_msg; // Message with all default values set.
upb_msg *default_msg; // Message with all default values set.
size_t size;
upb_field_count_t num_fields;
uint32_t set_flags_bytes;

@ -272,8 +272,8 @@ static uint8_t *skip_wire_value(uint8_t *buf, uint8_t *end, upb_wire_type_t wt,
}
}
uint8_t *upb_parse_value(uint8_t *buf, uint8_t *end, upb_field_type_t ft,
union upb_value_ptr v, struct upb_status *status)
static uint8_t *upb_parse_value(uint8_t *buf, uint8_t *end, upb_field_type_t ft,
union upb_value_ptr v, struct upb_status *status)
{
#define CASE(t, member_name) \
case UPB_TYPE(t): return upb_get_ ## t(buf, end, v.member_name, status);

@ -39,7 +39,7 @@ struct upb_inttable_entry {
// performance by letting us compare hashes before comparing lengths or the
// strings themselves.
struct upb_strtable_entry {
upb_string *key; // We own a frozen ref.
upb_string *key; // We own a frozen ref.
uint32_t next; // Internal chaining.
};

@ -23,10 +23,10 @@ INLINE void upb_text_printer_init(struct upb_text_printer *p, bool single_line)
p->single_line = single_line;
}
void upb_text_printval(upb_field_type_t type, union upb_value p, FILE *file);
void upb_text_printfield(struct upb_text_printer *p, struct upb_string *name,
void upb_text_printfield(struct upb_text_printer *p, upb_string *name,
upb_field_type_t valtype, union upb_value val,
FILE *stream);
void upb_text_push(struct upb_text_printer *p, struct upb_string *submsg_type,
void upb_text_push(struct upb_text_printer *p, upb_string *submsg_type,
FILE *stream);
void upb_text_pop(struct upb_text_printer *p, FILE *stream);

@ -11,33 +11,36 @@
#include <ctype.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdlib.h>
#include "descriptor.h"
#include "upb_array.h"
#include "upb_data.h"
#include "upb_def.h"
#include "upb_mm.h"
#include "upb_msg.h"
#include "upb_text.h"
/* These are in-place string transformations that do not change the length of
* the string (and thus never need to re-allocate). */
/* Convert to C identifier: foo.bar.Baz -> foo_bar_Baz. */
static void to_cident(struct upb_string *str)
// Convert to C identifier: foo.bar.Baz -> foo_bar_Baz.
static void to_cident(upb_string *str)
{
for(uint32_t i = 0; i < str->byte_len; i++)
if(str->ptr[i] == '.' || str->ptr[i] == '/')
str->ptr[i] = '_';
upb_strlen_t len = upb_strlen(str);
char *buf = upb_string_getrwbuf(str, len);
for(uint32_t i = 0; i < len; i++)
if(buf[i] == '.' || buf[i] == '/')
buf[i] = '_';
}
/* Convert to C proprocessor identifier: foo.bar.Baz -> FOO_BAR_BAZ. */
static void to_preproc(struct upb_string *str)
// Convert to C proprocessor identifier: foo.bar.Baz -> FOO_BAR_BAZ.
static void to_preproc(upb_string *str)
{
to_cident(str);
for(uint32_t i = 0; i < str->byte_len; i++)
str->ptr[i] = toupper(str->ptr[i]);
upb_strlen_t len = upb_strlen(str);
char *buf = upb_string_getrwbuf(str, len);
for(uint32_t i = 0; i < len; i++)
buf[i] = toupper(buf[i]);
}
static int my_memrchr(char *data, char c, size_t len)
static int my_memrchr(const char *data, char c, size_t len)
{
int off = len-1;
while(off > 0 && data[off] != c) --off;
@ -62,10 +65,13 @@ static void write_const_h(struct upb_def *defs[], int num_entries,
char *outfile_name, FILE *stream)
{
/* Header file prologue. */
struct upb_string *include_guard_name = upb_strdupc(outfile_name);
upb_string *include_guard_name = upb_strdupc(outfile_name);
to_preproc(include_guard_name);
/* A bit cheesy, but will do the job. */
include_guard_name->ptr[include_guard_name->byte_len-1] = 'C';
upb_strlen_t len = upb_strlen(include_guard_name);
char *buf = upb_string_getrwbuf(include_guard_name, len);
buf[len-1] = 'C';
fputs("/* This file was generated by upbc (the upb compiler). "
"Do not edit. */\n\n", stream),
fprintf(stream, "#ifndef " UPB_STRFMT "\n", UPB_STRARG(include_guard_name));
@ -79,14 +85,14 @@ static void write_const_h(struct upb_def *defs[], int num_entries,
for(int i = 0; i < num_entries; i++) { /* Foreach enum */
if(defs[i]->type != UPB_DEF_ENUM) continue;
struct upb_enumdef *enumdef = upb_downcast_enumdef(defs[i]);
struct upb_string *enum_name = upb_strdup(UPB_UPCAST(enumdef)->fqname);
struct upb_string *enum_val_prefix = upb_strdup(enum_name);
upb_string *enum_name = upb_strdup(UPB_UPCAST(enumdef)->fqname);
upb_string *enum_val_prefix = upb_strdup(enum_name);
to_cident(enum_name);
enum_val_prefix->byte_len = my_memrchr(enum_val_prefix->ptr,
UPB_SYMBOL_SEPARATOR,
enum_val_prefix->byte_len);
enum_val_prefix->byte_len++;
const char *data = upb_string_getrobuf(enum_val_prefix);
upb_strlen_t len = upb_strlen(enum_val_prefix);
upb_strlen_t lastsep = my_memrchr(data, UPB_SYMBOL_SEPARATOR, len);
upb_string_resize(enum_val_prefix, lastsep + 1);
to_preproc(enum_val_prefix);
fprintf(stream, "typedef enum " UPB_STRFMT " {\n", UPB_STRARG(enum_name));
@ -94,7 +100,7 @@ static void write_const_h(struct upb_def *defs[], int num_entries,
bool first = true;
/* Foreach enum value. */
for(upb_enum_begin(&iter, enumdef); !upb_enum_done(&iter); upb_enum_next(&iter)) {
struct upb_string *value_name = upb_strdup(iter.name);
upb_string *value_name = upb_strdup(iter.name);
to_preproc(value_name);
/* " GOOGLE_PROTOBUF_FIELDDESCRIPTORPROTO_TYPE_UINT32 = 13," */
if (!first) fputs(",\n", stream);
@ -124,7 +130,7 @@ static void write_h(struct upb_def *defs[], int num_defs, char *outfile_name,
char *descriptor_cident, FILE *stream)
{
/* Header file prologue. */
struct upb_string *include_guard_name = upb_strdupc(outfile_name);
upb_string *include_guard_name = upb_strdupc(outfile_name);
to_preproc(include_guard_name);
fputs("/* This file was generated by upbc (the upb compiler). "
"Do not edit. */\n\n", stream),
@ -149,7 +155,7 @@ static void write_h(struct upb_def *defs[], int num_defs, char *outfile_name,
for(int i = 0; i < num_defs; i++) { /* Foreach message */
struct upb_msgdef *m = upb_dyncast_msgdef(defs[i]);
if(!m) continue;
struct upb_string *msg_name = upb_strdup(UPB_UPCAST(m)->fqname);
upb_string *msg_name = upb_strdup(UPB_UPCAST(m)->fqname);
to_cident(msg_name);
fprintf(stream, "struct " UPB_STRFMT ";\n", UPB_STRARG(msg_name));
fprintf(stream, "typedef struct " UPB_STRFMT "\n " UPB_STRFMT ";\n\n",
@ -162,7 +168,7 @@ static void write_h(struct upb_def *defs[], int num_defs, char *outfile_name,
for(int i = 0; i < num_defs; i++) { /* Foreach message */
struct upb_msgdef *m = upb_dyncast_msgdef(defs[i]);
if(!m) continue;
struct upb_string *msg_name = upb_strdup(UPB_UPCAST(m)->fqname);
upb_string *msg_name = upb_strdup(UPB_UPCAST(m)->fqname);
to_cident(msg_name);
fprintf(stream, "struct " UPB_STRFMT " {\n", UPB_STRARG(msg_name));
fputs(" struct upb_mmhead mmhead;\n", stream);
@ -181,7 +187,7 @@ static void write_h(struct upb_def *defs[], int num_defs, char *outfile_name,
for(upb_field_count_t j = 0; j < m->num_fields; j++) {
struct upb_fielddef *f = &m->fields[j];
if(upb_issubmsg(f)) {
struct upb_string *type_name = upb_strdup(f->def->fqname);
upb_string *type_name = upb_strdup(f->def->fqname);
to_cident(type_name);
if(f->label == GOOGLE_PROTOBUF_FIELDDESCRIPTORPROTO_LABEL_REPEATED) {
fprintf(stream, " UPB_MSG_ARRAY(" UPB_STRFMT ")* " UPB_STRFMT ";\n",
@ -241,14 +247,14 @@ struct strtable_entry {
struct typetable_entry {
struct upb_strtable_entry e;
struct upb_fielddef *field;
struct upb_string *cident; /* Type name converted with to_cident(). */
upb_string *cident; /* Type name converted with to_cident(). */
/* A list of all values of this type, in an established order. */
union upb_value *values;
int values_size, values_len;
struct array {
int offset;
int len;
struct upb_array *ptr; /* So we can find it later. */
upb_array *ptr; /* So we can find it later. */
} *arrays;
int arrays_size, arrays_len;
};
@ -270,32 +276,33 @@ int compare_entries(const void *_e1, const void *_e2)
*
* TODO: make these use a generic msg visitor. */
static void add_strings_from_msg(struct upb_msg *msg, struct upb_strtable *t);
static void add_strings_from_msg(upb_msg *msg, struct upb_msgdef *md,
struct upb_strtable *t);
static void add_strings_from_value(union upb_value_ptr p,
static void add_strings_from_value(union upb_value p,
struct upb_fielddef *f,
struct upb_strtable *t)
{
if(upb_isstringtype(f->type)) {
struct strtable_entry e = {.e = {.key = *p.str}};
struct strtable_entry e = {.e = {.key = p.str}};
if(upb_strtable_lookup(t, e.e.key) == NULL)
upb_strtable_insert(t, &e.e);
} else if(upb_issubmsg(f)) {
add_strings_from_msg(*p.msg, t);
add_strings_from_msg(p.msg, upb_downcast_msgdef(f->def), t);
}
}
static void add_strings_from_msg(struct upb_msg *msg, struct upb_strtable *t)
static void add_strings_from_msg(upb_msg *msg, struct upb_msgdef *md,
struct upb_strtable *t)
{
struct upb_msgdef *m = msg->def;
for(upb_field_count_t i = 0; i < m->num_fields; i++) {
struct upb_fielddef *f = &m->fields[i];
if(!upb_msg_isset(msg, f)) continue;
union upb_value_ptr p = upb_msg_getptr(msg, f);
for(upb_field_count_t i = 0; i < md->num_fields; i++) {
struct upb_fielddef *f = &md->fields[i];
if(!upb_msg_has(msg, f)) continue;
union upb_value p = upb_msg_get(msg, f);
if(upb_isarray(f)) {
struct upb_array *arr = *p.arr;
for(uint32_t j = 0; j < arr->len; j++)
add_strings_from_value(upb_array_getelementptr(arr, j), f, t);
upb_array *arr = p.arr;
for(uint32_t j = 0; j < upb_array_len(arr); j++)
add_strings_from_value(upb_array_get(arr, f, j), f, t);
} else {
add_strings_from_value(p, f, t);
}
@ -310,8 +317,8 @@ static void add_strings_from_msg(struct upb_msg *msg, struct upb_strtable *t)
struct typetable_entry *get_or_insert_typeentry(struct upb_strtable *t,
struct upb_fielddef *f)
{
struct upb_string *type_name = upb_issubmsg(f) ? upb_strdup(f->def->fqname) :
upb_strdupc(upb_type_info[f->type].ctype);
upb_string *type_name = upb_issubmsg(f) ? upb_strdup(f->def->fqname) :
upb_strdupc(upb_type_info[f->type].ctype);
struct typetable_entry *type_e = upb_strtable_lookup(t, type_name);
if(type_e == NULL) {
struct typetable_entry new_type_e = {
@ -331,7 +338,7 @@ struct typetable_entry *get_or_insert_typeentry(struct upb_strtable *t,
return type_e;
}
static void add_value(union upb_value_ptr p, struct upb_fielddef *f,
static void add_value(union upb_value v, struct upb_fielddef *f,
struct upb_strtable *t)
{
struct typetable_entry *type_e = get_or_insert_typeentry(t, f);
@ -339,19 +346,19 @@ static void add_value(union upb_value_ptr p, struct upb_fielddef *f,
type_e->values_size = UPB_MAX(type_e->values_size * 2, 4);
type_e->values = realloc(type_e->values, sizeof(*type_e->values) * type_e->values_size);
}
type_e->values[type_e->values_len++] = upb_value_read(p, f->type);
type_e->values[type_e->values_len++] = v;
}
static void add_submsgs(struct upb_msg *msg, struct upb_strtable *t)
static void add_submsgs(upb_msg *msg, struct upb_msgdef *md,
struct upb_strtable *t)
{
struct upb_msgdef *m = msg->def;
for(upb_field_count_t i = 0; i < m->num_fields; i++) {
struct upb_fielddef *f = &m->fields[i];
if(!upb_msg_isset(msg, f)) continue;
union upb_value_ptr p = upb_msg_getptr(msg, f);
for(upb_field_count_t i = 0; i < md->num_fields; i++) {
struct upb_fielddef *f = &md->fields[i];
if(!upb_msg_has(msg, f)) continue;
union upb_value v = upb_msg_get(msg, f);
if(upb_isarray(f)) {
if(upb_isstring(f)) continue; /* Handled by a different code-path. */
struct upb_array *arr = *p.arr;
upb_array *arr = v.arr;
/* Add to our list of arrays for this type. */
struct typetable_entry *arr_type_e =
@ -362,30 +369,31 @@ static void add_submsgs(struct upb_msg *msg, struct upb_strtable *t)
sizeof(*arr_type_e->arrays)*arr_type_e->arrays_size);
}
arr_type_e->arrays[arr_type_e->arrays_len].offset = arr_type_e->values_len;
arr_type_e->arrays[arr_type_e->arrays_len].len = arr->len;
arr_type_e->arrays[arr_type_e->arrays_len].ptr = *p.arr;
arr_type_e->arrays[arr_type_e->arrays_len].len = upb_array_len(arr);
arr_type_e->arrays[arr_type_e->arrays_len].ptr = v.arr;
arr_type_e->arrays_len++;
/* Add the individual values in the array. */
for(uint32_t j = 0; j < arr->len; j++)
add_value(upb_array_getelementptr(arr, j), f, t);
for(uint32_t j = 0; j < upb_array_len(arr); j++)
add_value(upb_array_get(arr, f, j), f, t);
/* Add submsgs. We must do this separately so that the msgs in this
* array are contiguous (and don't have submsgs of the same type
* interleaved). */
for(uint32_t j = 0; j < arr->len; j++)
add_submsgs(*upb_array_getelementptr(arr, j).msg, t);
for(uint32_t j = 0; j < upb_array_len(arr); j++)
add_submsgs(upb_array_get(arr, f, j).msg, upb_downcast_msgdef(f->def), t);
} else {
if(!upb_issubmsg(f)) continue;
add_value(p, f, t);
add_submsgs(*p.msg, t);
add_value(v, f, t);
add_submsgs(v.msg, upb_downcast_msgdef(f->def), t);
}
}
}
/* write_messages_c emits a .c file that contains the data of a protobuf,
* serialized as C structures. */
static void write_message_c(struct upb_msg *msg, char *cident, char *hfile_name,
static void write_message_c(upb_msg *msg, struct upb_msgdef *md,
char *cident, char *hfile_name,
int argc, char *argv[], char *infile_name,
FILE *stream)
{
@ -415,7 +423,7 @@ static void write_message_c(struct upb_msg *msg, char *cident, char *hfile_name,
* same string more than once. */
struct upb_strtable strings;
upb_strtable_init(&strings, 16, sizeof(struct strtable_entry));
add_strings_from_msg(msg, &strings);
add_strings_from_msg(msg, md, &strings);
int size;
struct strtable_entry **str_entries = strtable_to_array(&strings, &size);
@ -427,7 +435,7 @@ static void write_message_c(struct upb_msg *msg, char *cident, char *hfile_name,
int col = 2;
int offset = 0;
for(int i = 0; i < size; i++) {
struct upb_string *s = str_entries[i]->e.key;
upb_string *s = str_entries[i]->e.key;
str_entries[i]->offset = offset;
str_entries[i]->num = i;
for(uint32_t j = 0; j < s->byte_len; j++) {

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