Fixed amalgamation and CMake build.

1 files changed, 0 insertions, 3409 deletions

diff --git a/upb/json/parser.c b/upb/json/parser.c
deleted file mode 100644
index 1e9d2fc..0000000
--- a/upb/json/parser.c
+++ /dev/null
@@ -1,3409 +0,0 @@
-
-#line 1 "upb/json/parser.rl"
-/*
-** upb::json::Parser (upb_json_parser)
-**
-** A parser that uses the Ragel State Machine Compiler to generate
-** the finite automata.
-**
-** Ragel only natively handles regular languages, but we can manually
-** program it a bit to handle context-free languages like JSON, by using
-** the "fcall" and "fret" constructs.
-**
-** This parser can handle the basics, but needs several things to be fleshed
-** out:
-**
-** - handling of unicode escape sequences (including high surrogate pairs).
-** - properly check and report errors for unknown fields, stack overflow,
-**   improper array nesting (or lack of nesting).
-** - handling of base64 sequences with padding characters.
-** - handling of push-back (non-success returns from sink functions).
-** - handling of keys/escape-sequences/etc that span input buffers.
-*/
-
-#include <ctype.h>
-#include <errno.h>
-#include <float.h>
-#include <math.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <time.h>
-
-#include "upb/json/parser.h"
-#include "upb/pb/encoder.h"
-
-#include "upb/port_def.inc"
-
-#define UPB_JSON_MAX_DEPTH 64
-
-/* Type of value message */
-enum {
-  VALUE_NULLVALUE   = 0,
-  VALUE_NUMBERVALUE = 1,
-  VALUE_STRINGVALUE = 2,
-  VALUE_BOOLVALUE   = 3,
-  VALUE_STRUCTVALUE = 4,
-  VALUE_LISTVALUE   = 5
-};
-
-/* Forward declare */
-static bool is_top_level(upb_json_parser *p);
-static bool is_wellknown_msg(upb_json_parser *p, upb_wellknowntype_t type);
-static bool is_wellknown_field(upb_json_parser *p, upb_wellknowntype_t type);
-
-static bool is_number_wrapper_object(upb_json_parser *p);
-static bool does_number_wrapper_start(upb_json_parser *p);
-static bool does_number_wrapper_end(upb_json_parser *p);
-
-static bool is_string_wrapper_object(upb_json_parser *p);
-static bool does_string_wrapper_start(upb_json_parser *p);
-static bool does_string_wrapper_end(upb_json_parser *p);
-
-static bool does_fieldmask_start(upb_json_parser *p);
-static bool does_fieldmask_end(upb_json_parser *p);
-static void start_fieldmask_object(upb_json_parser *p);
-static void end_fieldmask_object(upb_json_parser *p);
-
-static void start_wrapper_object(upb_json_parser *p);
-static void end_wrapper_object(upb_json_parser *p);
-
-static void start_value_object(upb_json_parser *p, int value_type);
-static void end_value_object(upb_json_parser *p);
-
-static void start_listvalue_object(upb_json_parser *p);
-static void end_listvalue_object(upb_json_parser *p);
-
-static void start_structvalue_object(upb_json_parser *p);
-static void end_structvalue_object(upb_json_parser *p);
-
-static void start_object(upb_json_parser *p);
-static void end_object(upb_json_parser *p);
-
-static void start_any_object(upb_json_parser *p, const char *ptr);
-static bool end_any_object(upb_json_parser *p, const char *ptr);
-
-static bool start_subobject(upb_json_parser *p);
-static void end_subobject(upb_json_parser *p);
-
-static void start_member(upb_json_parser *p);
-static void end_member(upb_json_parser *p);
-static bool end_membername(upb_json_parser *p);
-
-static void start_any_member(upb_json_parser *p, const char *ptr);
-static void end_any_member(upb_json_parser *p, const char *ptr);
-static bool end_any_membername(upb_json_parser *p);
-
-size_t parse(void *closure, const void *hd, const char *buf, size_t size,
-             const upb_bufhandle *handle);
-static bool end(void *closure, const void *hd);
-
-static const char eof_ch = 'e';
-
-/* stringsink */
-typedef struct {
-  upb_byteshandler handler;
-  upb_bytessink sink;
-  char *ptr;
-  size_t len, size;
-} upb_stringsink;
-
-
-static void *stringsink_start(void *_sink, const void *hd, size_t size_hint) {
-  upb_stringsink *sink = _sink;
-  sink->len = 0;
-  UPB_UNUSED(hd);
-  UPB_UNUSED(size_hint);
-  return sink;
-}
-
-static size_t stringsink_string(void *_sink, const void *hd, const char *ptr,
-                                size_t len, const upb_bufhandle *handle) {
-  upb_stringsink *sink = _sink;
-  size_t new_size = sink->size;
-
-  UPB_UNUSED(hd);
-  UPB_UNUSED(handle);
-
-  while (sink->len + len > new_size) {
-    new_size *= 2;
-  }
-
-  if (new_size != sink->size) {
-    sink->ptr = realloc(sink->ptr, new_size);
-    sink->size = new_size;
-  }
-
-  memcpy(sink->ptr + sink->len, ptr, len);
-  sink->len += len;
-
-  return len;
-}
-
-void upb_stringsink_init(upb_stringsink *sink) {
-  upb_byteshandler_init(&sink->handler);
-  upb_byteshandler_setstartstr(&sink->handler, stringsink_start, NULL);
-  upb_byteshandler_setstring(&sink->handler, stringsink_string, NULL);
-
-  upb_bytessink_reset(&sink->sink, &sink->handler, sink);
-
-  sink->size = 32;
-  sink->ptr = malloc(sink->size);
-  sink->len = 0;
-}
-
-void upb_stringsink_uninit(upb_stringsink *sink) { free(sink->ptr); }
-
-typedef struct {
-  /* For encoding Any value field in binary format. */
-  upb_handlercache *encoder_handlercache;
-  upb_stringsink stringsink;
-
-  /* For decoding Any value field in json format. */
-  upb_json_codecache *parser_codecache;
-  upb_sink sink;
-  upb_json_parser *parser;
-
-  /* Mark the range of uninterpreted values in json input before type url. */
-  const char *before_type_url_start;
-  const char *before_type_url_end;
-
-  /* Mark the range of uninterpreted values in json input after type url. */
-  const char *after_type_url_start;
-} upb_jsonparser_any_frame;
-
-typedef struct {
-  upb_sink sink;
-
-  /* The current message in which we're parsing, and the field whose value we're
-   * expecting next. */
-  const upb_msgdef *m;
-  const upb_fielddef *f;
-
-  /* The table mapping json name to fielddef for this message. */
-  const upb_strtable *name_table;
-
-  /* We are in a repeated-field context. We need this flag to decide whether to
-   * handle the array as a normal repeated field or a
-   * google.protobuf.ListValue/google.protobuf.Value. */
-  bool is_repeated;
-
-  /* We are in a repeated-field context, ready to emit mapentries as
-   * submessages. This flag alters the start-of-object (open-brace) behavior to
-   * begin a sequence of mapentry messages rather than a single submessage. */
-  bool is_map;
-
-  /* We are in a map-entry message context. This flag is set when parsing the
-   * value field of a single map entry and indicates to all value-field parsers
-   * (subobjects, strings, numbers, and bools) that the map-entry submessage
-   * should end as soon as the value is parsed. */
-  bool is_mapentry;
-
-  /* If |is_map| or |is_mapentry| is true, |mapfield| refers to the parent
-   * message's map field that we're currently parsing. This differs from |f|
-   * because |f| is the field in the *current* message (i.e., the map-entry
-   * message itself), not the parent's field that leads to this map. */
-  const upb_fielddef *mapfield;
-
-  /* We are in an Any message context. This flag is set when parsing the Any
-   * message and indicates to all field parsers (subobjects, strings, numbers,
-   * and bools) that the parsed field should be serialized as binary data or
-   * cached (type url not found yet). */
-  bool is_any;
-
-  /* The type of packed message in Any. */
-  upb_jsonparser_any_frame *any_frame;
-
-  /* True if the field to be parsed is unknown. */
-  bool is_unknown_field;
-} upb_jsonparser_frame;
-
-static void init_frame(upb_jsonparser_frame* frame) {
-  frame->m = NULL;
-  frame->f = NULL;
-  frame->name_table = NULL;
-  frame->is_repeated = false;
-  frame->is_map = false;
-  frame->is_mapentry = false;
-  frame->mapfield = NULL;
-  frame->is_any = false;
-  frame->any_frame = NULL;
-  frame->is_unknown_field = false;
-}
-
-struct upb_json_parser {
-  upb_arena *arena;
-  const upb_json_parsermethod *method;
-  upb_bytessink input_;
-
-  /* Stack to track the JSON scopes we are in. */
-  upb_jsonparser_frame stack[UPB_JSON_MAX_DEPTH];
-  upb_jsonparser_frame *top;
-  upb_jsonparser_frame *limit;
-
-  upb_status *status;
-
-  /* Ragel's internal parsing stack for the parsing state machine. */
-  int current_state;
-  int parser_stack[UPB_JSON_MAX_DEPTH];
-  int parser_top;
-
-  /* The handle for the current buffer. */
-  const upb_bufhandle *handle;
-
-  /* Accumulate buffer.  See details in parser.rl. */
-  const char *accumulated;
-  size_t accumulated_len;
-  char *accumulate_buf;
-  size_t accumulate_buf_size;
-
-  /* Multi-part text data.  See details in parser.rl. */
-  int multipart_state;
-  upb_selector_t string_selector;
-
-  /* Input capture.  See details in parser.rl. */
-  const char *capture;
-
-  /* Intermediate result of parsing a unicode escape sequence. */
-  uint32_t digit;
-
-  /* For resolve type url in Any. */
-  const upb_symtab *symtab;
-
-  /* Whether to proceed if unknown field is met. */
-  bool ignore_json_unknown;
-
-  /* Cache for parsing timestamp due to base and zone are handled in different
-   * handlers. */
-  struct tm tm;
-};
-
-static upb_jsonparser_frame* start_jsonparser_frame(upb_json_parser *p) {
-  upb_jsonparser_frame *inner;
-  inner = p->top + 1;
-  init_frame(inner);
-  return inner;
-}
-
-struct upb_json_codecache {
-  upb_arena *arena;
-  upb_inttable methods;   /* upb_msgdef* -> upb_json_parsermethod* */
-};
-
-struct upb_json_parsermethod {
-  const upb_json_codecache *cache;
-  upb_byteshandler input_handler_;
-
-  /* Maps json_name -> fielddef */
-  upb_strtable name_table;
-};
-
-#define PARSER_CHECK_RETURN(x) if (!(x)) return false
-
-static upb_jsonparser_any_frame *json_parser_any_frame_new(
-    upb_json_parser *p) {
-  upb_jsonparser_any_frame *frame;
-
-  frame = upb_arena_malloc(p->arena, sizeof(upb_jsonparser_any_frame));
-
-  frame->encoder_handlercache = upb_pb_encoder_newcache();
-  frame->parser_codecache = upb_json_codecache_new();
-  frame->parser = NULL;
-  frame->before_type_url_start = NULL;
-  frame->before_type_url_end = NULL;
-  frame->after_type_url_start = NULL;
-
-  upb_stringsink_init(&frame->stringsink);
-
-  return frame;
-}
-
-static void json_parser_any_frame_set_payload_type(
-    upb_json_parser *p,
-    upb_jsonparser_any_frame *frame,
-    const upb_msgdef *payload_type) {
-  const upb_handlers *h;
-  const upb_json_parsermethod *parser_method;
-  upb_pb_encoder *encoder;
-
-  /* Initialize encoder. */
-  h = upb_handlercache_get(frame->encoder_handlercache, payload_type);
-  encoder = upb_pb_encoder_create(p->arena, h, frame->stringsink.sink);
-
-  /* Initialize parser. */
-  parser_method = upb_json_codecache_get(frame->parser_codecache, payload_type);
-  upb_sink_reset(&frame->sink, h, encoder);
-  frame->parser =
-      upb_json_parser_create(p->arena, parser_method, p->symtab, frame->sink,
-                             p->status, p->ignore_json_unknown);
-}
-
-static void json_parser_any_frame_free(upb_jsonparser_any_frame *frame) {
-  upb_handlercache_free(frame->encoder_handlercache);
-  upb_json_codecache_free(frame->parser_codecache);
-  upb_stringsink_uninit(&frame->stringsink);
-}
-
-static bool json_parser_any_frame_has_type_url(
-  upb_jsonparser_any_frame *frame) {
-  return frame->parser != NULL;
-}
-
-static bool json_parser_any_frame_has_value_before_type_url(
-  upb_jsonparser_any_frame *frame) {
-  return frame->before_type_url_start != frame->before_type_url_end;
-}
-
-static bool json_parser_any_frame_has_value_after_type_url(
-  upb_jsonparser_any_frame *frame) {
-  return frame->after_type_url_start != NULL;
-}
-
-static bool json_parser_any_frame_has_value(
-  upb_jsonparser_any_frame *frame) {
-  return json_parser_any_frame_has_value_before_type_url(frame) ||
-         json_parser_any_frame_has_value_after_type_url(frame);
-}
-
-static void json_parser_any_frame_set_before_type_url_end(
-    upb_jsonparser_any_frame *frame,
-    const char *ptr) {
-  if (frame->parser == NULL) {
-    frame->before_type_url_end = ptr;
-  }
-}
-
-static void json_parser_any_frame_set_after_type_url_start_once(
-    upb_jsonparser_any_frame *frame,
-    const char *ptr) {
-  if (json_parser_any_frame_has_type_url(frame) &&
-      frame->after_type_url_start == NULL) {
-    frame->after_type_url_start = ptr;
-  }
-}
-
-/* Used to signal that a capture has been suspended. */
-static char suspend_capture;
-
-static upb_selector_t getsel_for_handlertype(upb_json_parser *p,
-                                             upb_handlertype_t type) {
-  upb_selector_t sel;
-  bool ok = upb_handlers_getselector(p->top->f, type, &sel);
-  UPB_ASSERT(ok);
-  return sel;
-}
-
-static upb_selector_t parser_getsel(upb_json_parser *p) {
-  return getsel_for_handlertype(
-      p, upb_handlers_getprimitivehandlertype(p->top->f));
-}
-
-static bool check_stack(upb_json_parser *p) {
-  if ((p->top + 1) == p->limit) {
-    upb_status_seterrmsg(p->status, "Nesting too deep");
-    return false;
-  }
-
-  return true;
-}
-
-static void set_name_table(upb_json_parser *p, upb_jsonparser_frame *frame) {
-  upb_value v;
-  const upb_json_codecache *cache = p->method->cache;
-  bool ok;
-  const upb_json_parsermethod *method;
-
-  ok = upb_inttable_lookupptr(&cache->methods, frame->m, &v);
-  UPB_ASSERT(ok);
-  method = upb_value_getconstptr(v);
-
-  frame->name_table = &method->name_table;
-}
-
-/* There are GCC/Clang built-ins for overflow checking which we could start
- * using if there was any performance benefit to it. */
-
-static bool checked_add(size_t a, size_t b, size_t *c) {
-  if (SIZE_MAX - a < b) return false;
-  *c = a + b;
-  return true;
-}
-
-static size_t saturating_multiply(size_t a, size_t b) {
-  /* size_t is unsigned, so this is defined behavior even on overflow. */
-  size_t ret = a * b;
-  if (b != 0 && ret / b != a) {
-    ret = SIZE_MAX;
-  }
-  return ret;
-}
-
-
-/* Base64 decoding ************************************************************/
-
-/* TODO(haberman): make this streaming. */
-
-static const signed char b64table[] = {
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      62/*+*/, -1,      -1,      -1,      63/*/ */,
-  52/*0*/, 53/*1*/, 54/*2*/, 55/*3*/, 56/*4*/, 57/*5*/, 58/*6*/, 59/*7*/,
-  60/*8*/, 61/*9*/, -1,      -1,      -1,      -1,      -1,      -1,
-  -1,       0/*A*/,  1/*B*/,  2/*C*/,  3/*D*/,  4/*E*/,  5/*F*/,  6/*G*/,
-  07/*H*/,  8/*I*/,  9/*J*/, 10/*K*/, 11/*L*/, 12/*M*/, 13/*N*/, 14/*O*/,
-  15/*P*/, 16/*Q*/, 17/*R*/, 18/*S*/, 19/*T*/, 20/*U*/, 21/*V*/, 22/*W*/,
-  23/*X*/, 24/*Y*/, 25/*Z*/, -1,      -1,      -1,      -1,      -1,
-  -1,      26/*a*/, 27/*b*/, 28/*c*/, 29/*d*/, 30/*e*/, 31/*f*/, 32/*g*/,
-  33/*h*/, 34/*i*/, 35/*j*/, 36/*k*/, 37/*l*/, 38/*m*/, 39/*n*/, 40/*o*/,
-  41/*p*/, 42/*q*/, 43/*r*/, 44/*s*/, 45/*t*/, 46/*u*/, 47/*v*/, 48/*w*/,
-  49/*x*/, 50/*y*/, 51/*z*/, -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1,
-  -1,      -1,      -1,      -1,      -1,      -1,      -1,      -1
-};
-
-/* Returns the table value sign-extended to 32 bits.  Knowing that the upper
- * bits will be 1 for unrecognized characters makes it easier to check for
- * this error condition later (see below). */
-int32_t b64lookup(unsigned char ch) { return b64table[ch]; }
-
-/* Returns true if the given character is not a valid base64 character or
- * padding. */
-bool nonbase64(unsigned char ch) { return b64lookup(ch) == -1 && ch != '='; }
-
-static bool base64_push(upb_json_parser *p, upb_selector_t sel, const char *ptr,
-                        size_t len) {
-  const char *limit = ptr + len;
-  for (; ptr < limit; ptr += 4) {
-    uint32_t val;
-    char output[3];
-
-    if (limit - ptr < 4) {
-      upb_status_seterrf(p->status,
-                         "Base64 input for bytes field not a multiple of 4: %s",
-                         upb_fielddef_name(p->top->f));
-      return false;
-    }
-
-    val = b64lookup(ptr[0]) << 18 |
-          b64lookup(ptr[1]) << 12 |
-          b64lookup(ptr[2]) << 6  |
-          b64lookup(ptr[3]);
-
-    /* Test the upper bit; returns true if any of the characters returned -1. */
-    if (val & 0x80000000) {
-      goto otherchar;
-    }
-
-    output[0] = val >> 16;
-    output[1] = (val >> 8) & 0xff;
-    output[2] = val & 0xff;
-    upb_sink_putstring(p->top->sink, sel, output, 3, NULL);
-  }
-  return true;
-
-otherchar:
-  if (nonbase64(ptr[0]) || nonbase64(ptr[1]) || nonbase64(ptr[2]) ||
-      nonbase64(ptr[3]) ) {
-    upb_status_seterrf(p->status,
-                       "Non-base64 characters in bytes field: %s",
-                       upb_fielddef_name(p->top->f));
-    return false;
-  } if (ptr[2] == '=') {
-    uint32_t val;
-    char output;
-
-    /* Last group contains only two input bytes, one output byte. */
-    if (ptr[0] == '=' || ptr[1] == '=' || ptr[3] != '=') {
-      goto badpadding;
-    }
-
-    val = b64lookup(ptr[0]) << 18 |
-          b64lookup(ptr[1]) << 12;
-
-    UPB_ASSERT(!(val & 0x80000000));
-    output = val >> 16;
-    upb_sink_putstring(p->top->sink, sel, &output, 1, NULL);
-    return true;
-  } else {
-    uint32_t val;
-    char output[2];
-
-    /* Last group contains only three input bytes, two output bytes. */
-    if (ptr[0] == '=' || ptr[1] == '=' || ptr[2] == '=') {
-      goto badpadding;
-    }
-
-    val = b64lookup(ptr[0]) << 18 |
-          b64lookup(ptr[1]) << 12 |
-          b64lookup(ptr[2]) << 6;
-
-    output[0] = val >> 16;
-    output[1] = (val >> 8) & 0xff;
-    upb_sink_putstring(p->top->sink, sel, output, 2, NULL);
-    return true;
-  }
-
-badpadding:
-  upb_status_seterrf(p->status,
-                     "Incorrect base64 padding for field: %s (%.*s)",
-                     upb_fielddef_name(p->top->f),
-                     4, ptr);
-  return false;
-}
-
-
-/* Accumulate buffer **********************************************************/
-
-/* Functionality for accumulating a buffer.
- *
- * Some parts of the parser need an entire value as a contiguous string.  For
- * example, to look up a member name in a hash table, or to turn a string into
- * a number, the relevant library routines need the input string to be in
- * contiguous memory, even if the value spanned two or more buffers in the
- * input.  These routines handle that.
- *
- * In the common case we can just point to the input buffer to get this
- * contiguous string and avoid any actual copy.  So we optimistically begin
- * this way.  But there are a few cases where we must instead copy into a
- * separate buffer:
- *
- *   1. The string was not contiguous in the input (it spanned buffers).
- *
- *   2. The string included escape sequences that need to be interpreted to get
- *      the true value in a contiguous buffer. */
-
-static void assert_accumulate_empty(upb_json_parser *p) {
-  UPB_ASSERT(p->accumulated == NULL);
-  UPB_ASSERT(p->accumulated_len == 0);
-}
-
-static void accumulate_clear(upb_json_parser *p) {
-  p->accumulated = NULL;
-  p->accumulated_len = 0;
-}
-
-/* Used internally by accumulate_append(). */
-static bool accumulate_realloc(upb_json_parser *p, size_t need) {
-  void *mem;
-  size_t old_size = p->accumulate_buf_size;
-  size_t new_size = UPB_MAX(old_size, 128);
-  while (new_size < need) {
-    new_size = saturating_multiply(new_size, 2);
-  }
-
-  mem = upb_arena_realloc(p->arena, p->accumulate_buf, old_size, new_size);
-  if (!mem) {
-    upb_status_seterrmsg(p->status, "Out of memory allocating buffer.");
-    return false;
-  }
-
-  p->accumulate_buf = mem;
-  p->accumulate_buf_size = new_size;
-  return true;
-}
-
-/* Logically appends the given data to the append buffer.
- * If "can_alias" is true, we will try to avoid actually copying, but the buffer
- * must be valid until the next accumulate_append() call (if any). */
-static bool accumulate_append(upb_json_parser *p, const char *buf, size_t len,
-                              bool can_alias) {
-  size_t need;
-
-  if (!p->accumulated && can_alias) {
-    p->accumulated = buf;
-    p->accumulated_len = len;
-    return true;
-  }
-
-  if (!checked_add(p->accumulated_len, len, &need)) {
-    upb_status_seterrmsg(p->status, "Integer overflow.");
-    return false;
-  }
-
-  if (need > p->accumulate_buf_size && !accumulate_realloc(p, need)) {
-    return false;
-  }
-
-  if (p->accumulated != p->accumulate_buf) {
-    memcpy(p->accumulate_buf, p->accumulated, p->accumulated_len);
-    p->accumulated = p->accumulate_buf;
-  }
-
-  memcpy(p->accumulate_buf + p->accumulated_len, buf, len);
-  p->accumulated_len += len;
-  return true;
-}
-
-/* Returns a pointer to the data accumulated since the last accumulate_clear()
- * call, and writes the length to *len.  This with point either to the input
- * buffer or a temporary accumulate buffer. */
-static const char *accumulate_getptr(upb_json_parser *p, size_t *len) {
-  UPB_ASSERT(p->accumulated);
-  *len = p->accumulated_len;
-  return p->accumulated;
-}
-
-
-/* Mult-part text data ********************************************************/
-
-/* When we have text data in the input, it can often come in multiple segments.
- * For example, there may be some raw string data followed by an escape
- * sequence.  The two segments are processed with different logic.  Also buffer
- * seams in the input can cause multiple segments.
- *
- * As we see segments, there are two main cases for how we want to process them:
- *
- *  1. we want to push the captured input directly to string handlers.
- *
- *  2. we need to accumulate all the parts into a contiguous buffer for further
- *     processing (field name lookup, string->number conversion, etc). */
-
-/* This is the set of states for p->multipart_state. */
-enum {
-  /* We are not currently processing multipart data. */
-  MULTIPART_INACTIVE = 0,
-
-  /* We are processing multipart data by accumulating it into a contiguous
-   * buffer. */
-  MULTIPART_ACCUMULATE = 1,
-
-  /* We are processing multipart data by pushing each part directly to the
-   * current string handlers. */
-  MULTIPART_PUSHEAGERLY = 2
-};
-
-/* Start a multi-part text value where we accumulate the data for processing at
- * the end. */
-static void multipart_startaccum(upb_json_parser *p) {
-  assert_accumulate_empty(p);
-  UPB_ASSERT(p->multipart_state == MULTIPART_INACTIVE);
-  p->multipart_state = MULTIPART_ACCUMULATE;
-}
-
-/* Start a multi-part text value where we immediately push text data to a string
- * value with the given selector. */
-static void multipart_start(upb_json_parser *p, upb_selector_t sel) {
-  assert_accumulate_empty(p);
-  UPB_ASSERT(p->multipart_state == MULTIPART_INACTIVE);
-  p->multipart_state = MULTIPART_PUSHEAGERLY;
-  p->string_selector = sel;
-}
-
-static bool multipart_text(upb_json_parser *p, const char *buf, size_t len,
-                           bool can_alias) {
-  switch (p->multipart_state) {
-    case MULTIPART_INACTIVE:
-      upb_status_seterrmsg(
-          p->status, "Internal error: unexpected state MULTIPART_INACTIVE");
-      return false;
-
-    case MULTIPART_ACCUMULATE:
-      if (!accumulate_append(p, buf, len, can_alias)) {
-        return false;
-      }
-      break;
-
-    case MULTIPART_PUSHEAGERLY: {
-      const upb_bufhandle *handle = can_alias ? p->handle : NULL;
-      upb_sink_putstring(p->top->sink, p->string_selector, buf, len, handle);
-      break;
-    }
-  }
-
-  return true;
-}
-
-/* Note: this invalidates the accumulate buffer!  Call only after reading its
- * contents. */
-static void multipart_end(upb_json_parser *p) {
-  UPB_ASSERT(p->multipart_state != MULTIPART_INACTIVE);
-  p->multipart_state = MULTIPART_INACTIVE;
-  accumulate_clear(p);
-}
-
-
-/* Input capture **************************************************************/
-
-/* Functionality for capturing a region of the input as text.  Gracefully
- * handles the case where a buffer seam occurs in the middle of the captured
- * region. */
-
-static void capture_begin(upb_json_parser *p, const char *ptr) {
-  UPB_ASSERT(p->multipart_state != MULTIPART_INACTIVE);
-  UPB_ASSERT(p->capture == NULL);
-  p->capture = ptr;
-}
-
-static bool capture_end(upb_json_parser *p, const char *ptr) {
-  UPB_ASSERT(p->capture);
-  if (multipart_text(p, p->capture, ptr - p->capture, true)) {
-    p->capture = NULL;
-    return true;
-  } else {
-    return false;
-  }
-}
-
-/* This is called at the end of each input buffer (ie. when we have hit a
- * buffer seam).  If we are in the middle of capturing the input, this
- * processes the unprocessed capture region. */
-static void capture_suspend(upb_json_parser *p, const char **ptr) {
-  if (!p->capture) return;
-
-  if (multipart_text(p, p->capture, *ptr - p->capture, false)) {
-    /* We use this as a signal that we were in the middle of capturing, and
-     * that capturing should resume at the beginning of the next buffer.
-     * 
-     * We can't use *ptr here, because we have no guarantee that this pointer
-     * will be valid when we resume (if the underlying memory is freed, then
-     * using the pointer at all, even to compare to NULL, is likely undefined
-     * behavior). */
-    p->capture = &suspend_capture;
-  } else {
-    /* Need to back up the pointer to the beginning of the capture, since
-     * we were not able to actually preserve it. */
-    *ptr = p->capture;
-  }
-}
-
-static void capture_resume(upb_json_parser *p, const char *ptr) {
-  if (p->capture) {
-    UPB_ASSERT(p->capture == &suspend_capture);
-    p->capture = ptr;
-  }
-}
-
-
-/* Callbacks from the parser **************************************************/
-
-/* These are the functions called directly from the parser itself.
- * We define these in the same order as their declarations in the parser. */
-
-static char escape_char(char in) {
-  switch (in) {
-    case 'r': return '\r';
-    case 't': return '\t';
-    case 'n': return '\n';
-    case 'f': return '\f';
-    case 'b': return '\b';
-    case '/': return '/';
-    case '"': return '"';
-    case '\\': return '\\';
-    default:
-      UPB_ASSERT(0);
-      return 'x';
-  }
-}
-
-static bool escape(upb_json_parser *p, const char *ptr) {
-  char ch = escape_char(*ptr);
-  return multipart_text(p, &ch, 1, false);
-}
-
-static void start_hex(upb_json_parser *p) {
-  p->digit = 0;
-}
-
-static void hexdigit(upb_json_parser *p, const char *ptr) {
-  char ch = *ptr;
-
-  p->digit <<= 4;
-
-  if (ch >= '0' && ch <= '9') {
-    p->digit += (ch - '0');
-  } else if (ch >= 'a' && ch <= 'f') {
-    p->digit += ((ch - 'a') + 10);
-  } else {
-    UPB_ASSERT(ch >= 'A' && ch <= 'F');
-    p->digit += ((ch - 'A') + 10);
-  }
-}
-
-static bool end_hex(upb_json_parser *p) {
-  uint32_t codepoint = p->digit;
-
-  /* emit the codepoint as UTF-8. */
-  char utf8[3]; /* support \u0000 -- \uFFFF -- need only three bytes. */
-  int length = 0;
-  if (codepoint <= 0x7F) {
-    utf8[0] = codepoint;
-    length = 1;
-  } else if (codepoint <= 0x07FF) {
-    utf8[1] = (codepoint & 0x3F) | 0x80;
-    codepoint >>= 6;
-    utf8[0] = (codepoint & 0x1F) | 0xC0;
-    length = 2;
-  } else /* codepoint <= 0xFFFF */ {
-    utf8[2] = (codepoint & 0x3F) | 0x80;
-    codepoint >>= 6;
-    utf8[1] = (codepoint & 0x3F) | 0x80;
-    codepoint >>= 6;
-    utf8[0] = (codepoint & 0x0F) | 0xE0;
-    length = 3;
-  }
-  /* TODO(haberman): Handle high surrogates: if codepoint is a high surrogate
-   * we have to wait for the next escape to get the full code point). */
-
-  return multipart_text(p, utf8, length, false);
-}
-
-static void start_text(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_text(upb_json_parser *p, const char *ptr) {
-  return capture_end(p, ptr);
-}
-
-static bool start_number(upb_json_parser *p, const char *ptr) {
-  if (is_top_level(p)) {
-    if (is_number_wrapper_object(p)) {
-      start_wrapper_object(p);
-    } else if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-      start_value_object(p, VALUE_NUMBERVALUE);
-    } else {
-      return false;
-    }
-  } else if (does_number_wrapper_start(p)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_wrapper_object(p);
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_VALUE)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_value_object(p, VALUE_NUMBERVALUE);
-  }
-
-  multipart_startaccum(p);
-  capture_begin(p, ptr);
-  return true;
-}
-
-static bool parse_number(upb_json_parser *p, bool is_quoted);
-
-static bool end_number_nontop(upb_json_parser *p, const char *ptr) {
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-
-  if (p->top->f == NULL) {
-    multipart_end(p);
-    return true;
-  }
-
-  return parse_number(p, false);
-}
-
-static bool end_number(upb_json_parser *p, const char *ptr) {
-  if (!end_number_nontop(p, ptr)) {
-    return false;
-  }
-
-  if (does_number_wrapper_end(p)) {
-    end_wrapper_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-    end_value_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  return true;
-}
-
-/* |buf| is NULL-terminated. |buf| itself will never include quotes;
- * |is_quoted| tells us whether this text originally appeared inside quotes. */
-static bool parse_number_from_buffer(upb_json_parser *p, const char *buf,
-                                     bool is_quoted) {
-  size_t len = strlen(buf);
-  const char *bufend = buf + len;
-  char *end;
-  upb_fieldtype_t type = upb_fielddef_type(p->top->f);
-  double val;
-  double dummy;
-  double inf = 1.0 / 0.0;  /* C89 does not have an INFINITY macro. */
-
-  errno = 0;
-
-  if (len == 0 || buf[0] == ' ') {
-    return false;
-  }
-
-  /* For integer types, first try parsing with integer-specific routines.
-   * If these succeed, they will be more accurate for int64/uint64 than
-   * strtod().
-   */
-  switch (type) {
-    case UPB_TYPE_ENUM:
-    case UPB_TYPE_INT32: {
-      long val = strtol(buf, &end, 0);
-      if (errno == ERANGE || end != bufend) {
-        break;
-      } else if (val > INT32_MAX || val < INT32_MIN) {
-        return false;
-      } else {
-        upb_sink_putint32(p->top->sink, parser_getsel(p), val);
-        return true;
-      }
-    }
-    case UPB_TYPE_UINT32: {
-      unsigned long val = strtoul(buf, &end, 0);
-      if (end != bufend) {
-        break;
-      } else if (val > UINT32_MAX || errno == ERANGE) {
-        return false;
-      } else {
-        upb_sink_putuint32(p->top->sink, parser_getsel(p), val);
-        return true;
-      }
-    }
-    /* XXX: We can't handle [u]int64 properly on 32-bit machines because
-     * strto[u]ll isn't in C89. */
-    case UPB_TYPE_INT64: {
-      long val = strtol(buf, &end, 0);
-      if (errno == ERANGE || end != bufend) {
-        break;
-      } else {
-        upb_sink_putint64(p->top->sink, parser_getsel(p), val);
-        return true;
-      }
-    }
-    case UPB_TYPE_UINT64: {
-      unsigned long val = strtoul(p->accumulated, &end, 0);
-      if (end != bufend) {
-        break;
-      } else if (errno == ERANGE) {
-        return false;
-      } else {
-        upb_sink_putuint64(p->top->sink, parser_getsel(p), val);
-        return true;
-      }
-    }
-    default:
-      break;
-  }
-
-  if (type != UPB_TYPE_DOUBLE && type != UPB_TYPE_FLOAT && is_quoted) {
-    /* Quoted numbers for integer types are not allowed to be in double form. */
-    return false;
-  }
-
-  if (len == strlen("Infinity") && strcmp(buf, "Infinity") == 0) {
-    /* C89 does not have an INFINITY macro. */
-    val = inf;
-  } else if (len == strlen("-Infinity") && strcmp(buf, "-Infinity") == 0) {
-    val = -inf;
-  } else {
-    val = strtod(buf, &end);
-    if (errno == ERANGE || end != bufend) {
-      return false;
-    }
-  }
-
-  switch (type) {
-#define CASE(capitaltype, smalltype, ctype, min, max)                     \
-    case UPB_TYPE_ ## capitaltype: {                                      \
-      if (modf(val, &dummy) != 0 || val > max || val < min) {             \
-        return false;                                                     \
-      } else {                                                            \
-        upb_sink_put ## smalltype(p->top->sink, parser_getsel(p),        \
-                                  (ctype)val);                            \
-        return true;                                                      \
-      }                                                                   \
-      break;                                                              \
-    }
-    case UPB_TYPE_ENUM:
-    CASE(INT32, int32, int32_t, INT32_MIN, INT32_MAX);
-    CASE(INT64, int64, int64_t, INT64_MIN, INT64_MAX);
-    CASE(UINT32, uint32, uint32_t, 0, UINT32_MAX);
-    CASE(UINT64, uint64, uint64_t, 0, UINT64_MAX);
-#undef CASE
-
-    case UPB_TYPE_DOUBLE:
-      upb_sink_putdouble(p->top->sink, parser_getsel(p), val);
-      return true;
-    case UPB_TYPE_FLOAT:
-      if ((val > FLT_MAX || val < -FLT_MAX) && val != inf && val != -inf) {
-        return false;
-      } else {
-        upb_sink_putfloat(p->top->sink, parser_getsel(p), val);
-        return true;
-      }
-    default:
-      return false;
-  }
-}
-
-static bool parse_number(upb_json_parser *p, bool is_quoted) {
-  size_t len;
-  const char *buf;
-
-  /* strtol() and friends unfortunately do not support specifying the length of
-   * the input string, so we need to force a copy into a NULL-terminated buffer. */
-  if (!multipart_text(p, "\0", 1, false)) {
-    return false;
-  }
-
-  buf = accumulate_getptr(p, &len);
-
-  if (parse_number_from_buffer(p, buf, is_quoted)) {
-    multipart_end(p);
-    return true;
-  } else {
-    upb_status_seterrf(p->status, "error parsing number: %s", buf);
-    multipart_end(p);
-    return false;
-  }
-}
-
-static bool parser_putbool(upb_json_parser *p, bool val) {
-  bool ok;
-
-  if (p->top->f == NULL) {
-    return true;
-  }
-
-  if (upb_fielddef_type(p->top->f) != UPB_TYPE_BOOL) {
-    upb_status_seterrf(p->status,
-                       "Boolean value specified for non-bool field: %s",
-                       upb_fielddef_name(p->top->f));
-    return false;
-  }
-
-  ok = upb_sink_putbool(p->top->sink, parser_getsel(p), val);
-  UPB_ASSERT(ok);
-
-  return true;
-}
-
-static bool end_bool(upb_json_parser *p, bool val) {
-  if (is_top_level(p)) {
-    if (is_wellknown_msg(p, UPB_WELLKNOWN_BOOLVALUE)) {
-      start_wrapper_object(p);
-    } else if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-      start_value_object(p, VALUE_BOOLVALUE);
-    } else {
-      return false;
-    }
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_BOOLVALUE)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_wrapper_object(p);
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_VALUE)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_value_object(p, VALUE_BOOLVALUE);
-  }
-
-  if (p->top->is_unknown_field) {
-    return true;
-  }
-
-  if (!parser_putbool(p, val)) {
-    return false;
-  }
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_BOOLVALUE)) {
-    end_wrapper_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-    end_value_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  return true;
-}
-
-static bool end_null(upb_json_parser *p) {
-  const char *zero_ptr = "0";
-
-  if (is_top_level(p)) {
-    if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-      start_value_object(p, VALUE_NULLVALUE);
-    } else {
-      return true;
-    }
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_VALUE)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_value_object(p, VALUE_NULLVALUE);
-  } else {
-    return true;
-  }
-
-  /* Fill null_value field. */
-  multipart_startaccum(p);
-  capture_begin(p, zero_ptr);
-  capture_end(p, zero_ptr + 1);
-  parse_number(p, false);
-
-  end_value_object(p);
-  if (!is_top_level(p)) {
-    end_subobject(p);
-  }
-
-  return true;
-}
-
-static bool start_any_stringval(upb_json_parser *p) {
-  multipart_startaccum(p);
-  return true;
-}
-
-static bool start_stringval(upb_json_parser *p) {
-  if (is_top_level(p)) {
-    if (is_string_wrapper_object(p)) {
-      start_wrapper_object(p);
-    } else if (is_wellknown_msg(p, UPB_WELLKNOWN_FIELDMASK)) {
-      start_fieldmask_object(p);
-      return true;
-    } else if (is_wellknown_msg(p, UPB_WELLKNOWN_TIMESTAMP) ||
-               is_wellknown_msg(p, UPB_WELLKNOWN_DURATION)) {
-      start_object(p);
-    } else if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-      start_value_object(p, VALUE_STRINGVALUE);
-    } else {
-      return false;
-    }
-  } else if (does_string_wrapper_start(p)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_wrapper_object(p);
-  } else if (does_fieldmask_start(p)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_fieldmask_object(p);
-    return true;
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_TIMESTAMP) ||
-             is_wellknown_field(p, UPB_WELLKNOWN_DURATION)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_object(p);
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_VALUE)) {
-    if (!start_subobject(p)) {
-      return false;
-    }
-    start_value_object(p, VALUE_STRINGVALUE);
-  }
-
-  if (p->top->f == NULL) {
-    multipart_startaccum(p);
-    return true;
-  }
-
-  if (p->top->is_any) {
-    return start_any_stringval(p);
-  }
-
-  if (upb_fielddef_isstring(p->top->f)) {
-    upb_jsonparser_frame *inner;
-    upb_selector_t sel;
-
-    if (!check_stack(p)) return false;
-
-    /* Start a new parser frame: parser frames correspond one-to-one with
-     * handler frames, and string events occur in a sub-frame. */
-    inner = start_jsonparser_frame(p);
-    sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSTR);
-    upb_sink_startstr(p->top->sink, sel, 0, &inner->sink);
-    inner->m = p->top->m;
-    inner->f = p->top->f;
-    p->top = inner;
-
-    if (upb_fielddef_type(p->top->f) == UPB_TYPE_STRING) {
-      /* For STRING fields we push data directly to the handlers as it is
-       * parsed.  We don't do this yet for BYTES fields, because our base64
-       * decoder is not streaming.
-       *
-       * TODO(haberman): make base64 decoding streaming also. */
-      multipart_start(p, getsel_for_handlertype(p, UPB_HANDLER_STRING));
-      return true;
-    } else {
-      multipart_startaccum(p);
-      return true;
-    }
-  } else if (upb_fielddef_type(p->top->f) != UPB_TYPE_BOOL &&
-             upb_fielddef_type(p->top->f) != UPB_TYPE_MESSAGE) {
-    /* No need to push a frame -- numeric values in quotes remain in the
-     * current parser frame.  These values must accmulate so we can convert
-     * them all at once at the end. */
-    multipart_startaccum(p);
-    return true;
-  } else {
-    upb_status_seterrf(p->status,
-                       "String specified for bool or submessage field: %s",
-                       upb_fielddef_name(p->top->f));
-    return false;
-  }
-}
-
-static bool end_any_stringval(upb_json_parser *p) {
-  size_t len;
-  const char *buf = accumulate_getptr(p, &len);
-
-  /* Set type_url */
-  upb_selector_t sel;
-  upb_jsonparser_frame *inner;
-  if (!check_stack(p)) return false;
-  inner = p->top + 1;
-
-  sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSTR);
-  upb_sink_startstr(p->top->sink, sel, 0, &inner->sink);
-  sel = getsel_for_handlertype(p, UPB_HANDLER_STRING);
-  upb_sink_putstring(inner->sink, sel, buf, len, NULL);
-  sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSTR);
-  upb_sink_endstr(inner->sink, sel);
-
-  multipart_end(p);
-
-  /* Resolve type url */
-  if (strncmp(buf, "type.googleapis.com/", 20) == 0 && len > 20) {
-    const upb_msgdef *payload_type = NULL;
-    buf += 20;
-    len -= 20;
-
-    payload_type = upb_symtab_lookupmsg2(p->symtab, buf, len);
-    if (payload_type == NULL) {
-      upb_status_seterrf(
-          p->status, "Cannot find packed type: %.*s\n", (int)len, buf);
-      return false;
-    }
-
-    json_parser_any_frame_set_payload_type(p, p->top->any_frame, payload_type);
-
-    return true;
-  } else {
-    upb_status_seterrf(
-        p->status, "Invalid type url: %.*s\n", (int)len, buf);
-    return false;
-  }
-}
-
-static bool end_stringval_nontop(upb_json_parser *p) {
-  bool ok = true;
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_TIMESTAMP) ||
-      is_wellknown_msg(p, UPB_WELLKNOWN_DURATION)) {
-    multipart_end(p);
-    return true;
-  }
-
-  if (p->top->f == NULL) {
-    multipart_end(p);
-    return true;
-  }
-
-  if (p->top->is_any) {
-    return end_any_stringval(p);
-  }
-
-  switch (upb_fielddef_type(p->top->f)) {
-    case UPB_TYPE_BYTES:
-      if (!base64_push(p, getsel_for_handlertype(p, UPB_HANDLER_STRING),
-                       p->accumulated, p->accumulated_len)) {
-        return false;
-      }
-      /* Fall through. */
-
-    case UPB_TYPE_STRING: {
-      upb_selector_t sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSTR);
-      upb_sink_endstr(p->top->sink, sel);
-      p->top--;
-      break;
-    }
-
-    case UPB_TYPE_ENUM: {
-      /* Resolve enum symbolic name to integer value. */
-      const upb_enumdef *enumdef = upb_fielddef_enumsubdef(p->top->f);
-
-      size_t len;
-      const char *buf = accumulate_getptr(p, &len);
-
-      int32_t int_val = 0;
-      ok = upb_enumdef_ntoi(enumdef, buf, len, &int_val);
-
-      if (ok) {
-        upb_selector_t sel = parser_getsel(p);
-        upb_sink_putint32(p->top->sink, sel, int_val);
-      } else {
-        upb_status_seterrf(p->status, "Enum value unknown: '%.*s'", len, buf);
-      }
-
-      break;
-    }
-
-    case UPB_TYPE_INT32:
-    case UPB_TYPE_INT64:
-    case UPB_TYPE_UINT32:
-    case UPB_TYPE_UINT64:
-    case UPB_TYPE_DOUBLE:
-    case UPB_TYPE_FLOAT:
-      ok = parse_number(p, true);
-      break;
-
-    default:
-      UPB_ASSERT(false);
-      upb_status_seterrmsg(p->status, "Internal error in JSON decoder");
-      ok = false;
-      break;
-  }
-
-  multipart_end(p);
-
-  return ok;
-}
-
-static bool end_stringval(upb_json_parser *p) {
-  /* FieldMask's stringvals have been ended when handling them. Only need to
-   * close FieldMask here.*/
-  if (does_fieldmask_end(p)) {
-    end_fieldmask_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  if (!end_stringval_nontop(p)) {
-    return false;
-  }
-
-  if (does_string_wrapper_end(p)) {
-    end_wrapper_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-    end_value_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_TIMESTAMP) ||
-      is_wellknown_msg(p, UPB_WELLKNOWN_DURATION) ||
-      is_wellknown_msg(p, UPB_WELLKNOWN_FIELDMASK)) {
-    end_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-    return true;
-  }
-
-  return true;
-}
-
-static void start_duration_base(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_duration_base(upb_json_parser *p, const char *ptr) {
-  size_t len;
-  const char *buf;
-  char seconds_buf[14];
-  char nanos_buf[12];
-  char *end;
-  int64_t seconds = 0;
-  int32_t nanos = 0;
-  double val = 0.0;
-  const char *seconds_membername = "seconds";
-  const char *nanos_membername = "nanos";
-  size_t fraction_start;
-
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-
-  buf = accumulate_getptr(p, &len);
-
-  memset(seconds_buf, 0, 14);
-  memset(nanos_buf, 0, 12);
-
-  /* Find out base end. The maximus duration is 315576000000, which cannot be
-   * represented by double without losing precision. Thus, we need to handle
-   * fraction and base separately. */
-  for (fraction_start = 0; fraction_start < len && buf[fraction_start] != '.';
-       fraction_start++);
-
-  /* Parse base */
-  memcpy(seconds_buf, buf, fraction_start);
-  seconds = strtol(seconds_buf, &end, 10);
-  if (errno == ERANGE || end != seconds_buf + fraction_start) {
-    upb_status_seterrf(p->status, "error parsing duration: %s",
-                       seconds_buf);
-    return false;
-  }
-
-  if (seconds > 315576000000) {
-    upb_status_seterrf(p->status, "error parsing duration: "
-                                   "maximum acceptable value is "
-                                   "315576000000");
-    return false;
-  }
-
-  if (seconds < -315576000000) {
-    upb_status_seterrf(p->status, "error parsing duration: "
-                                   "minimum acceptable value is "
-                                   "-315576000000");
-    return false;
-  }
-
-  /* Parse fraction */
-  nanos_buf[0] = '0';
-  memcpy(nanos_buf + 1, buf + fraction_start, len - fraction_start);
-  val = strtod(nanos_buf, &end);
-  if (errno == ERANGE || end != nanos_buf + len - fraction_start + 1) {
-    upb_status_seterrf(p->status, "error parsing duration: %s",
-                       nanos_buf);
-    return false;
-  }
-
-  nanos = val * 1000000000;
-  if (seconds < 0) nanos = -nanos;
-
-  /* Clean up buffer */
-  multipart_end(p);
-
-  /* Set seconds */
-  start_member(p);
-  capture_begin(p, seconds_membername);
-  capture_end(p, seconds_membername + 7);
-  end_membername(p);
-  upb_sink_putint64(p->top->sink, parser_getsel(p), seconds);
-  end_member(p);
-
-  /* Set nanos */
-  start_member(p);
-  capture_begin(p, nanos_membername);
-  capture_end(p, nanos_membername + 5);
-  end_membername(p);
-  upb_sink_putint32(p->top->sink, parser_getsel(p), nanos);
-  end_member(p);
-
-  /* Continue previous arena */
-  multipart_startaccum(p);
-
-  return true;
-}
-
-static int parse_timestamp_number(upb_json_parser *p) {
-  size_t len;
-  const char *buf;
-  int val;
-
-  /* atoi() and friends unfortunately do not support specifying the length of
-   * the input string, so we need to force a copy into a NULL-terminated buffer. */
-  multipart_text(p, "\0", 1, false);
-
-  buf = accumulate_getptr(p, &len);
-  val = atoi(buf);
-  multipart_end(p);
-  multipart_startaccum(p);
-
-  return val;
-}
-
-static void start_year(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_year(upb_json_parser *p, const char *ptr) {
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-  p->tm.tm_year = parse_timestamp_number(p) - 1900;
-  return true;
-}
-
-static void start_month(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_month(upb_json_parser *p, const char *ptr) {
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-  p->tm.tm_mon = parse_timestamp_number(p) - 1;
-  return true;
-}
-
-static void start_day(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_day(upb_json_parser *p, const char *ptr) {
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-  p->tm.tm_mday = parse_timestamp_number(p);
-  return true;
-}
-
-static void start_hour(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_hour(upb_json_parser *p, const char *ptr) {
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-  p->tm.tm_hour = parse_timestamp_number(p);
-  return true;
-}
-
-static void start_minute(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_minute(upb_json_parser *p, const char *ptr) {
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-  p->tm.tm_min = parse_timestamp_number(p);
-  return true;
-}
-
-static void start_second(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_second(upb_json_parser *p, const char *ptr) {
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-  p->tm.tm_sec = parse_timestamp_number(p);
-  return true;
-}
-
-static void start_timestamp_base(upb_json_parser *p) {
-  memset(&p->tm, 0, sizeof(struct tm));
-}
-
-static void start_timestamp_fraction(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_timestamp_fraction(upb_json_parser *p, const char *ptr) {
-  size_t len;
-  const char *buf;
-  char nanos_buf[12];
-  char *end;
-  double val = 0.0;
-  int32_t nanos;
-  const char *nanos_membername = "nanos";
-
-  memset(nanos_buf, 0, 12);
-
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-
-  buf = accumulate_getptr(p, &len);
-
-  if (len > 10) {
-    upb_status_seterrf(p->status,
-        "error parsing timestamp: at most 9-digit fraction.");
-    return false;
-  }
-
-  /* Parse nanos */
-  nanos_buf[0] = '0';
-  memcpy(nanos_buf + 1, buf, len);
-  val = strtod(nanos_buf, &end);
-
-  if (errno == ERANGE || end != nanos_buf + len + 1) {
-    upb_status_seterrf(p->status, "error parsing timestamp nanos: %s",
-                       nanos_buf);
-    return false;
-  }
-
-  nanos = val * 1000000000;
-
-  /* Clean up previous environment */
-  multipart_end(p);
-
-  /* Set nanos */
-  start_member(p);
-  capture_begin(p, nanos_membername);
-  capture_end(p, nanos_membername + 5);
-  end_membername(p);
-  upb_sink_putint32(p->top->sink, parser_getsel(p), nanos);
-  end_member(p);
-
-  /* Continue previous environment */
-  multipart_startaccum(p);
-
-  return true;
-}
-
-static void start_timestamp_zone(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_timestamp_zone(upb_json_parser *p, const char *ptr) {
-  size_t len;
-  const char *buf;
-  int hours;
-  int64_t seconds;
-  const char *seconds_membername = "seconds";
-
-  if (!capture_end(p, ptr)) {
-    return false;
-  }
-
-  buf = accumulate_getptr(p, &len);
-
-  if (buf[0] != 'Z') {
-    if (sscanf(buf + 1, "%2d:00", &hours) != 1) {
-      upb_status_seterrf(p->status, "error parsing timestamp offset");
-      return false;
-    }
-
-    if (buf[0] == '+') {
-      hours = -hours;
-    }
-
-    p->tm.tm_hour += hours;
-  }
-
-  /* Normalize tm */
-  seconds = mktime(&p->tm);
-
-  /* Check timestamp boundary */
-  if (seconds < -62135596800) {
-    upb_status_seterrf(p->status, "error parsing timestamp: "
-                                   "minimum acceptable value is "
-                                   "0001-01-01T00:00:00Z");
-    return false;
-  }
-
-  /* Clean up previous environment */
-  multipart_end(p);
-
-  /* Set seconds */
-  start_member(p);
-  capture_begin(p, seconds_membername);
-  capture_end(p, seconds_membername + 7);
-  end_membername(p);
-  upb_sink_putint64(p->top->sink, parser_getsel(p), seconds);
-  end_member(p);
-
-  /* Continue previous environment */
-  multipart_startaccum(p);
-
-  return true;
-}
-
-static void start_fieldmask_path_text(upb_json_parser *p, const char *ptr) {
-  capture_begin(p, ptr);
-}
-
-static bool end_fieldmask_path_text(upb_json_parser *p, const char *ptr) {
-  return capture_end(p, ptr);
-}
-
-static bool start_fieldmask_path(upb_json_parser *p) {
-  upb_jsonparser_frame *inner;
-  upb_selector_t sel;
-
-  if (!check_stack(p)) return false;
-
-  /* Start a new parser frame: parser frames correspond one-to-one with
-   * handler frames, and string events occur in a sub-frame. */
-  inner = start_jsonparser_frame(p);
-  sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSTR);
-  upb_sink_startstr(p->top->sink, sel, 0, &inner->sink);
-  inner->m = p->top->m;
-  inner->f = p->top->f;
-  p->top = inner;
-
-  multipart_startaccum(p);
-  return true;
-}
-
-static bool lower_camel_push(
-    upb_json_parser *p, upb_selector_t sel, const char *ptr, size_t len) {
-  const char *limit = ptr + len;
-  bool first = true;
-  for (;ptr < limit; ptr++) {
-    if (*ptr >= 'A' && *ptr <= 'Z' && !first) {
-      char lower = tolower(*ptr);
-      upb_sink_putstring(p->top->sink, sel, "_", 1, NULL);
-      upb_sink_putstring(p->top->sink, sel, &lower, 1, NULL);
-    } else {
-      upb_sink_putstring(p->top->sink, sel, ptr, 1, NULL);
-    }
-    first = false;
-  }
-  return true;
-}
-
-static bool end_fieldmask_path(upb_json_parser *p) {
-  upb_selector_t sel;
-
-  if (!lower_camel_push(
-           p, getsel_for_handlertype(p, UPB_HANDLER_STRING),
-           p->accumulated, p->accumulated_len)) {
-    return false;
-  }
-
-  sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSTR);
-  upb_sink_endstr(p->top->sink, sel);
-  p->top--;
-
-  multipart_end(p);
-  return true;
-}
-
-static void start_member(upb_json_parser *p) {
-  UPB_ASSERT(!p->top->f);
-  multipart_startaccum(p);
-}
-
-/* Helper: invoked during parse_mapentry() to emit the mapentry message's key
- * field based on the current contents of the accumulate buffer. */
-static bool parse_mapentry_key(upb_json_parser *p) {
-
-  size_t len;
-  const char *buf = accumulate_getptr(p, &len);
-
-  /* Emit the key field. We do a bit of ad-hoc parsing here because the
-   * parser state machine has already decided that this is a string field
-   * name, and we are reinterpreting it as some arbitrary key type. In
-   * particular, integer and bool keys are quoted, so we need to parse the
-   * quoted string contents here. */
-
-  p->top->f = upb_msgdef_itof(p->top->m, UPB_MAPENTRY_KEY);
-  if (p->top->f == NULL) {
-    upb_status_seterrmsg(p->status, "mapentry message has no key");
-    return false;
-  }
-  switch (upb_fielddef_type(p->top->f)) {
-    case UPB_TYPE_INT32:
-    case UPB_TYPE_INT64:
-    case UPB_TYPE_UINT32:
-    case UPB_TYPE_UINT64:
-      /* Invoke end_number. The accum buffer has the number's text already. */
-      if (!parse_number(p, true)) {
-        return false;
-      }
-      break;
-    case UPB_TYPE_BOOL:
-      if (len == 4 && !strncmp(buf, "true", 4)) {
-        if (!parser_putbool(p, true)) {
-          return false;
-        }
-      } else if (len == 5 && !strncmp(buf, "false", 5)) {
-        if (!parser_putbool(p, false)) {
-          return false;
-        }
-      } else {
-        upb_status_seterrmsg(p->status,
-                             "Map bool key not 'true' or 'false'");
-        return false;
-      }
-      multipart_end(p);
-      break;
-    case UPB_TYPE_STRING:
-    case UPB_TYPE_BYTES: {
-      upb_sink subsink;
-      upb_selector_t sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSTR);
-      upb_sink_startstr(p->top->sink, sel, len, &subsink);
-      sel = getsel_for_handlertype(p, UPB_HANDLER_STRING);
-      upb_sink_putstring(subsink, sel, buf, len, NULL);
-      sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSTR);
-      upb_sink_endstr(subsink, sel);
-      multipart_end(p);
-      break;
-    }
-    default:
-      upb_status_seterrmsg(p->status, "Invalid field type for map key");
-      return false;
-  }
-
-  return true;
-}
-
-/* Helper: emit one map entry (as a submessage in the map field sequence). This
- * is invoked from end_membername(), at the end of the map entry's key string,
- * with the map key in the accumulate buffer. It parses the key from that
- * buffer, emits the handler calls to start the mapentry submessage (setting up
- * its subframe in the process), and sets up state in the subframe so that the
- * value parser (invoked next) will emit the mapentry's value field and then
- * end the mapentry message. */
-
-static bool handle_mapentry(upb_json_parser *p) {
-  const upb_fielddef *mapfield;
-  const upb_msgdef *mapentrymsg;
-  upb_jsonparser_frame *inner;
-  upb_selector_t sel;
-
-  /* Map entry: p->top->sink is the seq frame, so we need to start a frame
-   * for the mapentry itself, and then set |f| in that frame so that the map
-   * value field is parsed, and also set a flag to end the frame after the
-   * map-entry value is parsed. */
-  if (!check_stack(p)) return false;
-
-  mapfield = p->top->mapfield;
-  mapentrymsg = upb_fielddef_msgsubdef(mapfield);
-
-  inner = start_jsonparser_frame(p);
-  p->top->f = mapfield;
-  sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSUBMSG);
-  upb_sink_startsubmsg(p->top->sink, sel, &inner->sink);
-  inner->m = mapentrymsg;
-  inner->mapfield = mapfield;
-
-  /* Don't set this to true *yet* -- we reuse parsing handlers below to push
-   * the key field value to the sink, and these handlers will pop the frame
-   * if they see is_mapentry (when invoked by the parser state machine, they
-   * would have just seen the map-entry value, not key). */
-  inner->is_mapentry = false;
-  p->top = inner;
-
-  /* send STARTMSG in submsg frame. */
-  upb_sink_startmsg(p->top->sink);
-
-  parse_mapentry_key(p);
-
-  /* Set up the value field to receive the map-entry value. */
-  p->top->f = upb_msgdef_itof(p->top->m, UPB_MAPENTRY_VALUE);
-  p->top->is_mapentry = true;  /* set up to pop frame after value is parsed. */
-  p->top->mapfield = mapfield;
-  if (p->top->f == NULL) {
-    upb_status_seterrmsg(p->status, "mapentry message has no value");
-    return false;
-  }
-
-  return true;
-}
-
-static bool end_membername(upb_json_parser *p) {
-  UPB_ASSERT(!p->top->f);
-
-  if (!p->top->m) {
-    p->top->is_unknown_field = true;
-    multipart_end(p);
-    return true;
-  }
-
-  if (p->top->is_any) {
-    return end_any_membername(p);
-  } else if (p->top->is_map) {
-    return handle_mapentry(p);
-  } else {
-    size_t len;
-    const char *buf = accumulate_getptr(p, &len);
-    upb_value v;
-
-    if (upb_strtable_lookup2(p->top->name_table, buf, len, &v)) {
-      p->top->f = upb_value_getconstptr(v);
-      multipart_end(p);
-
-      return true;
-    } else if (p->ignore_json_unknown) {
-      p->top->is_unknown_field = true;
-      multipart_end(p);
-      return true;
-    } else {
-      upb_status_seterrf(p->status, "No such field: %.*s\n", (int)len, buf);
-      return false;
-    }
-  }
-}
-
-static bool end_any_membername(upb_json_parser *p) {
-  size_t len;
-  const char *buf = accumulate_getptr(p, &len);
-  upb_value v;
-
-  if (len == 5 && strncmp(buf, "@type", len) == 0) {
-    upb_strtable_lookup2(p->top->name_table, "type_url", 8, &v);
-    p->top->f = upb_value_getconstptr(v);
-    multipart_end(p);
-    return true;
-  } else {
-    p->top->is_unknown_field = true;
-    multipart_end(p);
-    return true;
-  }
-}
-
-static void end_member(upb_json_parser *p) {
-  /* If we just parsed a map-entry value, end that frame too. */
-  if (p->top->is_mapentry) {
-    upb_selector_t sel;
-    bool ok;
-    const upb_fielddef *mapfield;
-
-    UPB_ASSERT(p->top > p->stack);
-    /* send ENDMSG on submsg. */
-    upb_sink_endmsg(p->top->sink, p->status);
-    mapfield = p->top->mapfield;
-
-    /* send ENDSUBMSG in repeated-field-of-mapentries frame. */
-    p->top--;
-    ok = upb_handlers_getselector(mapfield, UPB_HANDLER_ENDSUBMSG, &sel);
-    UPB_ASSERT(ok);
-    upb_sink_endsubmsg(p->top->sink, sel);
-  }
-
-  p->top->f = NULL;
-  p->top->is_unknown_field = false;
-}
-
-static void start_any_member(upb_json_parser *p, const char *ptr) {
-  start_member(p);
-  json_parser_any_frame_set_after_type_url_start_once(p->top->any_frame, ptr);
-}
-
-static void end_any_member(upb_json_parser *p, const char *ptr) {
-  json_parser_any_frame_set_before_type_url_end(p->top->any_frame, ptr);
-  end_member(p);
-}
-
-static bool start_subobject(upb_json_parser *p) {
-  if (p->top->is_unknown_field) {
-    if (!check_stack(p)) return false;
-
-    p->top = start_jsonparser_frame(p);
-    return true;
-  }
-
-  if (upb_fielddef_ismap(p->top->f)) {
-    upb_jsonparser_frame *inner;
-    upb_selector_t sel;
-
-    /* Beginning of a map. Start a new parser frame in a repeated-field
-     * context. */
-    if (!check_stack(p)) return false;
-
-    inner = start_jsonparser_frame(p);
-    sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSEQ);
-    upb_sink_startseq(p->top->sink, sel, &inner->sink);
-    inner->m = upb_fielddef_msgsubdef(p->top->f);
-    inner->mapfield = p->top->f;
-    inner->is_map = true;
-    p->top = inner;
-
-    return true;
-  } else if (upb_fielddef_issubmsg(p->top->f)) {
-    upb_jsonparser_frame *inner;
-    upb_selector_t sel;
-
-    /* Beginning of a subobject. Start a new parser frame in the submsg
-     * context. */
-    if (!check_stack(p)) return false;
-
-    inner = start_jsonparser_frame(p);
-    sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSUBMSG);
-    upb_sink_startsubmsg(p->top->sink, sel, &inner->sink);
-    inner->m = upb_fielddef_msgsubdef(p->top->f);
-    set_name_table(p, inner);
-    p->top = inner;
-
-    if (is_wellknown_msg(p, UPB_WELLKNOWN_ANY)) {
-      p->top->is_any = true;
-      p->top->any_frame = json_parser_any_frame_new(p);
-    } else {
-      p->top->is_any = false;
-      p->top->any_frame = NULL;
-    }
-
-    return true;
-  } else {
-    upb_status_seterrf(p->status,
-                       "Object specified for non-message/group field: %s",
-                       upb_fielddef_name(p->top->f));
-    return false;
-  }
-}
-
-static bool start_subobject_full(upb_json_parser *p) {
-  if (is_top_level(p)) {
-    if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-      start_value_object(p, VALUE_STRUCTVALUE);
-      if (!start_subobject(p)) return false;
-      start_structvalue_object(p);
-    } else if (is_wellknown_msg(p, UPB_WELLKNOWN_STRUCT)) {
-      start_structvalue_object(p);
-    } else {
-      return true;
-    }
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_STRUCT)) {
-    if (!start_subobject(p)) return false;
-    start_structvalue_object(p);
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_VALUE)) {
-    if (!start_subobject(p)) return false;
-    start_value_object(p, VALUE_STRUCTVALUE);
-    if (!start_subobject(p)) return false;
-    start_structvalue_object(p);
-  }
-
-  return start_subobject(p);
-}
-
-static void end_subobject(upb_json_parser *p) {
-  if (is_top_level(p)) {
-    return;
-  }
-
-  if (p->top->is_map) {
-    upb_selector_t sel;
-    p->top--;
-    sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSEQ);
-    upb_sink_endseq(p->top->sink, sel);
-  } else {
-    upb_selector_t sel;
-    bool is_unknown = p->top->m == NULL;
-    p->top--;
-    if (!is_unknown) {
-      sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSUBMSG);
-      upb_sink_endsubmsg(p->top->sink, sel);
-    }
-  }
-}
-
-static void end_subobject_full(upb_json_parser *p) {
-  end_subobject(p);
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_STRUCT)) {
-    end_structvalue_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-  }
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-    end_value_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-  }
-}
-
-static bool start_array(upb_json_parser *p) {
-  upb_jsonparser_frame *inner;
-  upb_selector_t sel;
-
-  if (is_top_level(p)) {
-    if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-      start_value_object(p, VALUE_LISTVALUE);
-      if (!start_subobject(p)) return false;
-      start_listvalue_object(p);
-    } else if (is_wellknown_msg(p, UPB_WELLKNOWN_LISTVALUE)) {
-      start_listvalue_object(p);
-    } else {
-      return false;
-    }
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_LISTVALUE) &&
-             (!upb_fielddef_isseq(p->top->f) ||
-              p->top->is_repeated)) {
-    if (!start_subobject(p)) return false;
-    start_listvalue_object(p);
-  } else if (is_wellknown_field(p, UPB_WELLKNOWN_VALUE) &&
-             (!upb_fielddef_isseq(p->top->f) ||
-              p->top->is_repeated)) {
-    if (!start_subobject(p)) return false;
-    start_value_object(p, VALUE_LISTVALUE);
-    if (!start_subobject(p)) return false;
-    start_listvalue_object(p);
-  }
-
-  if (p->top->is_unknown_field) {
-    inner = start_jsonparser_frame(p);
-    inner->is_unknown_field = true;
-    p->top = inner;
-
-    return true;
-  }
-
-  if (!upb_fielddef_isseq(p->top->f)) {
-    upb_status_seterrf(p->status,
-                       "Array specified for non-repeated field: %s",
-                       upb_fielddef_name(p->top->f));
-    return false;
-  }
-
-  if (!check_stack(p)) return false;
-
-  inner = start_jsonparser_frame(p);
-  sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSEQ);
-  upb_sink_startseq(p->top->sink, sel, &inner->sink);
-  inner->m = p->top->m;
-  inner->f = p->top->f;
-  inner->is_repeated = true;
-  p->top = inner;
-
-  return true;
-}
-
-static void end_array(upb_json_parser *p) {
-  upb_selector_t sel;
-
-  UPB_ASSERT(p->top > p->stack);
-
-  p->top--;
-
-  if (p->top->is_unknown_field) {
-    return;
-  }
-
-  sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSEQ);
-  upb_sink_endseq(p->top->sink, sel);
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_LISTVALUE)) {
-    end_listvalue_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-  }
-
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_VALUE)) {
-    end_value_object(p);
-    if (!is_top_level(p)) {
-      end_subobject(p);
-    }
-  }
-}
-
-static void start_object(upb_json_parser *p) {
-  if (!p->top->is_map && p->top->m != NULL) {
-    upb_sink_startmsg(p->top->sink);
-  }
-}
-
-static void end_object(upb_json_parser *p) {
-  if (!p->top->is_map && p->top->m != NULL) {
-    upb_sink_endmsg(p->top->sink, p->status);
-  }
-}
-
-static void start_any_object(upb_json_parser *p, const char *ptr) {
-  start_object(p);
-  p->top->any_frame->before_type_url_start = ptr;
-  p->top->any_frame->before_type_url_end = ptr;
-}
-
-static bool end_any_object(upb_json_parser *p, const char *ptr) {
-  const char *value_membername = "value";
-  bool is_well_known_packed = false;
-  const char *packed_end = ptr + 1;
-  upb_selector_t sel;
-  upb_jsonparser_frame *inner;
-
-  if (json_parser_any_frame_has_value(p->top->any_frame) &&
-      !json_parser_any_frame_has_type_url(p->top->any_frame)) {
-    upb_status_seterrmsg(p->status, "No valid type url");
-    return false;
-  }
-
-  /* Well known types data is represented as value field. */
-  if (upb_msgdef_wellknowntype(p->top->any_frame->parser->top->m) !=
-          UPB_WELLKNOWN_UNSPECIFIED) {
-    is_well_known_packed = true;
-
-    if (json_parser_any_frame_has_value_before_type_url(p->top->any_frame)) {
-      p->top->any_frame->before_type_url_start =
-          memchr(p->top->any_frame->before_type_url_start, ':',
-                 p->top->any_frame->before_type_url_end -
-                 p->top->any_frame->before_type_url_start);
-      if (p->top->any_frame->before_type_url_start == NULL) {
-        upb_status_seterrmsg(p->status, "invalid data for well known type.");
-        return false;
-      }
-      p->top->any_frame->before_type_url_start++;
-    }
-
-    if (json_parser_any_frame_has_value_after_type_url(p->top->any_frame)) {
-      p->top->any_frame->after_type_url_start =
-          memchr(p->top->any_frame->after_type_url_start, ':',
-                 (ptr + 1) -
-                 p->top->any_frame->after_type_url_start);
-      if (p->top->any_frame->after_type_url_start == NULL) {
-        upb_status_seterrmsg(p->status, "Invalid data for well known type.");
-        return false;
-      }
-      p->top->any_frame->after_type_url_start++;
-      packed_end = ptr;
-    }
-  }
-
-  if (json_parser_any_frame_has_value_before_type_url(p->top->any_frame)) {
-    if (!parse(p->top->any_frame->parser, NULL,
-               p->top->any_frame->before_type_url_start,
-               p->top->any_frame->before_type_url_end -
-               p->top->any_frame->before_type_url_start, NULL)) {
-      return false;
-    }
-  } else {
-    if (!is_well_known_packed) {
-      if (!parse(p->top->any_frame->parser, NULL, "{", 1, NULL)) {
-        return false;
-      }
-    }
-  }
-
-  if (json_parser_any_frame_has_value_before_type_url(p->top->any_frame) &&
-      json_parser_any_frame_has_value_after_type_url(p->top->any_frame)) {
-    if (!parse(p->top->any_frame->parser, NULL, ",", 1, NULL)) {
-      return false;
-    }
-  }
-
-  if (json_parser_any_frame_has_value_after_type_url(p->top->any_frame)) {
-    if (!parse(p->top->any_frame->parser, NULL,
-               p->top->any_frame->after_type_url_start,
-               packed_end - p->top->any_frame->after_type_url_start, NULL)) {
-      return false;
-    }
-  } else {
-    if (!is_well_known_packed) {
-      if (!parse(p->top->any_frame->parser, NULL, "}", 1, NULL)) {
-        return false;
-      }
-    }
-  }
-
-  if (!end(p->top->any_frame->parser, NULL)) {
-    return false;
-  }
-
-  p->top->is_any = false;
-
-  /* Set value */
-  start_member(p);
-  capture_begin(p, value_membername);
-  capture_end(p, value_membername + 5);
-  end_membername(p);
-
-  if (!check_stack(p)) return false;
-  inner = p->top + 1;
-
-  sel = getsel_for_handlertype(p, UPB_HANDLER_STARTSTR);
-  upb_sink_startstr(p->top->sink, sel, 0, &inner->sink);
-  sel = getsel_for_handlertype(p, UPB_HANDLER_STRING);
-  upb_sink_putstring(inner->sink, sel, p->top->any_frame->stringsink.ptr,
-                     p->top->any_frame->stringsink.len, NULL);
-  sel = getsel_for_handlertype(p, UPB_HANDLER_ENDSTR);
-  upb_sink_endstr(inner->sink, sel);
-
-  end_member(p);
-
-  end_object(p);
-
-  /* Deallocate any parse frame. */
-  json_parser_any_frame_free(p->top->any_frame);
-
-  return true;
-}
-
-static bool is_string_wrapper(const upb_msgdef *m) {
-  upb_wellknowntype_t type = upb_msgdef_wellknowntype(m);
-  return type == UPB_WELLKNOWN_STRINGVALUE ||
-         type == UPB_WELLKNOWN_BYTESVALUE;
-}
-
-static bool is_fieldmask(const upb_msgdef *m) {
-  upb_wellknowntype_t type = upb_msgdef_wellknowntype(m);
-  return type == UPB_WELLKNOWN_FIELDMASK;
-}
-
-static void start_fieldmask_object(upb_json_parser *p) {
-  const char *membername = "paths";
-
-  start_object(p);
-
-  /* Set up context for parsing value */
-  start_member(p);
-  capture_begin(p, membername);
-  capture_end(p, membername + 5);
-  end_membername(p);
-
-  start_array(p);
-}
-
-static void end_fieldmask_object(upb_json_parser *p) {
-  end_array(p);
-  end_member(p);
-  end_object(p);
-}
-
-static void start_wrapper_object(upb_json_parser *p) {
-  const char *membername = "value";
-
-  start_object(p);
-
-  /* Set up context for parsing value */
-  start_member(p);
-  capture_begin(p, membername);
-  capture_end(p, membername + 5);
-  end_membername(p);
-}
-
-static void end_wrapper_object(upb_json_parser *p) {
-  end_member(p);
-  end_object(p);
-}
-
-static void start_value_object(upb_json_parser *p, int value_type) {
-  const char *nullmember = "null_value";
-  const char *numbermember = "number_value";
-  const char *stringmember = "string_value";
-  const char *boolmember = "bool_value";
-  const char *structmember = "struct_value";
-  const char *listmember = "list_value";
-  const char *membername = "";
-
-  switch (value_type) {
-    case VALUE_NULLVALUE:
-      membername = nullmember;
-      break;
-    case VALUE_NUMBERVALUE:
-      membername = numbermember;
-      break;
-    case VALUE_STRINGVALUE:
-      membername = stringmember;
-      break;
-    case VALUE_BOOLVALUE:
-      membername = boolmember;
-      break;
-    case VALUE_STRUCTVALUE:
-      membername = structmember;
-      break;
-    case VALUE_LISTVALUE:
-      membername = listmember;
-      break;
-  }
-
-  start_object(p);
-
-  /* Set up context for parsing value */
-  start_member(p);
-  capture_begin(p, membername);
-  capture_end(p, membername + strlen(membername));
-  end_membername(p);
-}
-
-static void end_value_object(upb_json_parser *p) {
-  end_member(p);
-  end_object(p);
-}
-
-static void start_listvalue_object(upb_json_parser *p) {
-  const char *membername = "values";
-
-  start_object(p);
-
-  /* Set up context for parsing value */
-  start_member(p);
-  capture_begin(p, membername);
-  capture_end(p, membername + strlen(membername));
-  end_membername(p);
-}
-
-static void end_listvalue_object(upb_json_parser *p) {
-  end_member(p);
-  end_object(p);
-}
-
-static void start_structvalue_object(upb_json_parser *p) {
-  const char *membername = "fields";
-
-  start_object(p);
-
-  /* Set up context for parsing value */
-  start_member(p);
-  capture_begin(p, membername);
-  capture_end(p, membername + strlen(membername));
-  end_membername(p);
-}
-
-static void end_structvalue_object(upb_json_parser *p) {
-  end_member(p);
-  end_object(p);
-}
-
-static bool is_top_level(upb_json_parser *p) {
-  return p->top == p->stack && p->top->f == NULL && !p->top->is_unknown_field;
-}
-
-static bool is_wellknown_msg(upb_json_parser *p, upb_wellknowntype_t type) {
-  return p->top->m != NULL && upb_msgdef_wellknowntype(p->top->m) == type;
-}
-
-static bool is_wellknown_field(upb_json_parser *p, upb_wellknowntype_t type) {
-  return p->top->f != NULL &&
-         upb_fielddef_issubmsg(p->top->f) &&
-         (upb_msgdef_wellknowntype(upb_fielddef_msgsubdef(p->top->f))
-              == type);
-}
-
-static bool does_number_wrapper_start(upb_json_parser *p) {
-  return p->top->f != NULL &&
-         upb_fielddef_issubmsg(p->top->f) &&
-         upb_msgdef_isnumberwrapper(upb_fielddef_msgsubdef(p->top->f));
-}
-
-static bool does_number_wrapper_end(upb_json_parser *p) {
-  return p->top->m != NULL && upb_msgdef_isnumberwrapper(p->top->m);
-}
-
-static bool is_number_wrapper_object(upb_json_parser *p) {
-  return p->top->m != NULL && upb_msgdef_isnumberwrapper(p->top->m);
-}
-
-static bool does_string_wrapper_start(upb_json_parser *p) {
-  return p->top->f != NULL &&
-         upb_fielddef_issubmsg(p->top->f) &&
-         is_string_wrapper(upb_fielddef_msgsubdef(p->top->f));
-}
-
-static bool does_string_wrapper_end(upb_json_parser *p) {
-  return p->top->m != NULL && is_string_wrapper(p->top->m);
-}
-
-static bool is_string_wrapper_object(upb_json_parser *p) {
-  return p->top->m != NULL && is_string_wrapper(p->top->m);
-}
-
-static bool does_fieldmask_start(upb_json_parser *p) {
-  return p->top->f != NULL &&
-         upb_fielddef_issubmsg(p->top->f) &&
-         is_fieldmask(upb_fielddef_msgsubdef(p->top->f));
-}
-
-static bool does_fieldmask_end(upb_json_parser *p) {
-  return p->top->m != NULL && is_fieldmask(p->top->m);
-}
-
-#define CHECK_RETURN_TOP(x) if (!(x)) goto error
-
-
-/* The actual parser **********************************************************/
-
-/* What follows is the Ragel parser itself.  The language is specified in Ragel
- * and the actions call our C functions above.
- *
- * Ragel has an extensive set of functionality, and we use only a small part of
- * it.  There are many action types but we only use a few:
- *
- *   ">" -- transition into a machine
- *   "%" -- transition out of a machine
- *   "@" -- transition into a final state of a machine.
- *
- * "@" transitions are tricky because a machine can transition into a final
- * state repeatedly.  But in some cases we know this can't happen, for example
- * a string which is delimited by a final '"' can only transition into its
- * final state once, when the closing '"' is seen. */
-
-
-#line 2749 "upb/json/parser.rl"
-
-
-
-#line 2552 "upb/json/parser.c"
-static const char _json_actions[] = {
-	0, 1, 0, 1, 1, 1, 3, 1, 
-	4, 1, 6, 1, 7, 1, 8, 1, 
-	9, 1, 11, 1, 12, 1, 13, 1, 
-	14, 1, 15, 1, 16, 1, 17, 1, 
-	18, 1, 19, 1, 20, 1, 22, 1, 
-	23, 1, 24, 1, 35, 1, 37, 1, 
-	39, 1, 40, 1, 42, 1, 43, 1, 
-	44, 1, 46, 1, 48, 1, 49, 1, 
-	50, 1, 51, 1, 53, 1, 54, 2, 
-	4, 9, 2, 5, 6, 2, 7, 3, 
-	2, 7, 9, 2, 21, 26, 2, 25, 
-	10, 2, 27, 28, 2, 29, 30, 2, 
-	32, 34, 2, 33, 31, 2, 38, 36, 
-	2, 40, 42, 2, 45, 2, 2, 46, 
-	54, 2, 47, 36, 2, 49, 54, 2, 
-	50, 54, 2, 51, 54, 2, 52, 41, 
-	2, 53, 54, 3, 32, 34, 35, 4, 
-	21, 26, 27, 28
-};
-
-static const short _json_key_offsets[] = {
-	0, 0, 12, 13, 18, 23, 28, 29, 
-	30, 31, 32, 33, 34, 35, 36, 37, 
-	38, 43, 44, 48, 53, 58, 63, 67, 
-	71, 74, 77, 79, 83, 87, 89, 91, 
-	96, 98, 100, 109, 115, 121, 127, 133, 
-	135, 139, 142, 144, 146, 149, 150, 154, 
-	156, 158, 160, 162, 163, 165, 167, 168, 
-	170, 172, 173, 175, 177, 178, 180, 182, 
-	183, 185, 187, 191, 193, 195, 196, 197, 
-	198, 199, 201, 206, 208, 210, 212, 221, 
-	222, 222, 222, 227, 232, 237, 238, 239, 
-	240, 241, 241, 242, 243, 244, 244, 245, 
-	246, 247, 247, 252, 253, 257, 262, 267, 
-	272, 276, 276, 279, 282, 285, 288, 291, 
-	294, 294, 294, 294, 294, 294
-};
-
-static const char _json_trans_keys[] = {
-	32, 34, 45, 91, 102, 110, 116, 123, 
-	9, 13, 48, 57, 34, 32, 93, 125, 
-	9, 13, 32, 44, 93, 9, 13, 32, 
-	93, 125, 9, 13, 97, 108, 115, 101, 
-	117, 108, 108, 114, 117, 101, 32, 34, 
-	125, 9, 13, 34, 32, 58, 9, 13, 
-	32, 93, 125, 9, 13, 32, 44, 125, 
-	9, 13, 32, 44, 125, 9, 13, 32, 
-	34, 9, 13, 45, 48, 49, 57, 48, 
-	49, 57, 46, 69, 101, 48, 57, 69, 
-	101, 48, 57, 43, 45, 48, 57, 48, 
-	57, 48, 57, 46, 69, 101, 48, 57, 
-	34, 92, 34, 92, 34, 47, 92, 98, 
-	102, 110, 114, 116, 117, 48, 57, 65, 
-	70, 97, 102, 48, 57, 65, 70, 97, 
-	102, 48, 57, 65, 70, 97, 102, 48, 
-	57, 65, 70, 97, 102, 34, 92, 45, 
-	48, 49, 57, 48, 49, 57, 46, 115, 
-	48, 57, 115, 48, 57, 34, 46, 115, 
-	48, 57, 48, 57, 48, 57, 48, 57, 
-	48, 57, 45, 48, 57, 48, 57, 45, 
-	48, 57, 48, 57, 84, 48, 57, 48, 
-	57, 58, 48, 57, 48, 57, 58, 48, 
-	57, 48, 57, 43, 45, 46, 90, 48, 
-	57, 48, 57, 58, 48, 48, 34, 48, 
-	57, 43, 45, 90, 48, 57, 34, 44, 
-	34, 44, 34, 44, 34, 45, 91, 102, 
-	110, 116, 123, 48, 57, 34, 32, 93, 
-	125, 9, 13, 32, 44, 93, 9, 13, 
-	32, 93, 125, 9, 13, 97, 108, 115, 
-	101, 117, 108, 108, 114, 117, 101, 32, 
-	34, 125, 9, 13, 34, 32, 58, 9, 
-	13, 32, 93, 125, 9, 13, 32, 44, 
-	125, 9, 13, 32, 44, 125, 9, 13, 
-	32, 34, 9, 13, 32, 9, 13, 32, 
-	9, 13, 32, 9, 13, 32, 9, 13, 
-	32, 9, 13, 32, 9, 13, 0
-};
-
-static const char _json_single_lengths[] = {
-	0, 8, 1, 3, 3, 3, 1, 1, 
-	1, 1, 1, 1, 1, 1, 1, 1, 
-	3, 1, 2, 3, 3, 3, 2, 2, 
-	1, 3, 0, 2, 2, 0, 0, 3, 
-	2, 2, 9, 0, 0, 0, 0, 2, 
-	2, 1, 2, 0, 1, 1, 2, 0, 
-	0, 0, 0, 1, 0, 0, 1, 0, 
-	0, 1, 0, 0, 1, 0, 0, 1, 
-	0, 0, 4, 0, 0, 1, 1, 1, 
-	1, 0, 3, 2, 2, 2, 7, 1, 
-	0, 0, 3, 3, 3, 1, 1, 1, 
-	1, 0, 1, 1, 1, 0, 1, 1, 
-	1, 0, 3, 1, 2, 3, 3, 3, 
-	2, 0, 1, 1, 1, 1, 1, 1, 
-	0, 0, 0, 0, 0, 0
-};
-
-static const char _json_range_lengths[] = {
-	0, 2, 0, 1, 1, 1, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	1, 0, 1, 1, 1, 1, 1, 1, 
-	1, 0, 1, 1, 1, 1, 1, 1, 
-	0, 0, 0, 3, 3, 3, 3, 0, 
-	1, 1, 0, 1, 1, 0, 1, 1, 
-	1, 1, 1, 0, 1, 1, 0, 1, 
-	1, 0, 1, 1, 0, 1, 1, 0, 
-	1, 1, 0, 1, 1, 0, 0, 0, 
-	0, 1, 1, 0, 0, 0, 1, 0, 
-	0, 0, 1, 1, 1, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 1, 0, 1, 1, 1, 1, 
-	1, 0, 1, 1, 1, 1, 1, 1, 
-	0, 0, 0, 0, 0, 0
-};
-
-static const short _json_index_offsets[] = {
-	0, 0, 11, 13, 18, 23, 28, 30, 
-	32, 34, 36, 38, 40, 42, 44, 46, 
-	48, 53, 55, 59, 64, 69, 74, 78, 
-	82, 85, 89, 91, 95, 99, 101, 103, 
-	108, 111, 114, 124, 128, 132, 136, 140, 
-	143, 147, 150, 153, 155, 158, 160, 164, 
-	166, 168, 170, 172, 174, 176, 178, 180, 
-	182, 184, 186, 188, 190, 192, 194, 196, 
-	198, 200, 202, 207, 209, 211, 213, 215, 
-	217, 219, 221, 226, 229, 232, 235, 244, 
-	246, 247, 248, 253, 258, 263, 265, 267, 
-	269, 271, 272, 274, 276, 278, 279, 281, 
-	283, 285, 286, 291, 293, 297, 302, 307, 
-	312, 316, 317, 320, 323, 326, 329, 332, 
-	335, 336, 337, 338, 339, 340
-};
-
-static const unsigned char _json_indicies[] = {
-	0, 2, 3, 4, 5, 6, 7, 8, 
-	0, 3, 1, 9, 1, 11, 12, 1, 
-	11, 10, 13, 14, 12, 13, 1, 14, 
-	1, 1, 14, 10, 15, 1, 16, 1, 
-	17, 1, 18, 1, 19, 1, 20, 1, 
-	21, 1, 22, 1, 23, 1, 24, 1, 
-	25, 26, 27, 25, 1, 28, 1, 29, 
-	30, 29, 1, 30, 1, 1, 30, 31, 
-	32, 33, 34, 32, 1, 35, 36, 27, 
-	35, 1, 36, 26, 36, 1, 37, 38, 
-	39, 1, 38, 39, 1, 41, 42, 42, 
-	40, 43, 1, 42, 42, 43, 40, 44, 
-	44, 45, 1, 45, 1, 45, 40, 41, 
-	42, 42, 39, 40, 47, 48, 46, 50, 
-	51, 49, 52, 52, 52, 52, 52, 52, 
-	52, 52, 53, 1, 54, 54, 54, 1, 
-	55, 55, 55, 1, 56, 56, 56, 1, 
-	57, 57, 57, 1, 59, 60, 58, 61, 
-	62, 63, 1, 64, 65, 1, 66, 67, 
-	1, 68, 1, 67, 68, 1, 69, 1, 
-	66, 67, 65, 1, 70, 1, 71, 1, 
-	72, 1, 73, 1, 74, 1, 75, 1, 
-	76, 1, 77, 1, 78, 1, 79, 1, 
-	80, 1, 81, 1, 82, 1, 83, 1, 
-	84, 1, 85, 1, 86, 1, 87, 1, 
-	88, 1, 89, 89, 90, 91, 1, 92, 
-	1, 93, 1, 94, 1, 95, 1, 96, 
-	1, 97, 1, 98, 1, 99, 99, 100, 
-	98, 1, 102, 1, 101, 104, 105, 103, 
-	1, 1, 101, 106, 107, 108, 109, 110, 
-	111, 112, 107, 1, 113, 1, 114, 115, 
-	117, 118, 1, 117, 116, 119, 120, 118, 
-	119, 1, 120, 1, 1, 120, 116, 121, 
-	1, 122, 1, 123, 1, 124, 1, 125, 
-	126, 1, 127, 1, 128, 1, 129, 130, 
-	1, 131, 1, 132, 1, 133, 134, 135, 
-	136, 134, 1, 137, 1, 138, 139, 138, 
-	1, 139, 1, 1, 139, 140, 141, 142, 
-	143, 141, 1, 144, 145, 136, 144, 1, 
-	145, 135, 145, 1, 146, 147, 147, 1, 
-	148, 148, 1, 149, 149, 1, 150, 150, 
-	1, 151, 151, 1, 152, 152, 1, 1, 
-	1, 1, 1, 1, 1, 0
-};
-
-static const char _json_trans_targs[] = {
-	1, 0, 2, 107, 3, 6, 10, 13, 
-	16, 106, 4, 3, 106, 4, 5, 7, 
-	8, 9, 108, 11, 12, 109, 14, 15, 
-	110, 16, 17, 111, 18, 18, 19, 20, 
-	21, 22, 111, 21, 22, 24, 25, 31, 
-	112, 26, 28, 27, 29, 30, 33, 113, 
-	34, 33, 113, 34, 32, 35, 36, 37, 
-	38, 39, 33, 113, 34, 41, 42, 46, 
-	42, 46, 43, 45, 44, 114, 48, 49, 
-	50, 51, 52, 53, 54, 55, 56, 57, 
-	58, 59, 60, 61, 62, 63, 64, 65, 
-	66, 67, 73, 72, 68, 69, 70, 71, 
-	72, 115, 74, 67, 72, 76, 116, 76, 
-	116, 77, 79, 81, 82, 85, 90, 94, 
-	98, 80, 117, 117, 83, 82, 80, 83, 
-	84, 86, 87, 88, 89, 117, 91, 92, 
-	93, 117, 95, 96, 97, 117, 98, 99, 
-	105, 100, 100, 101, 102, 103, 104, 105, 
-	103, 104, 117, 106, 106, 106, 106, 106, 
-	106
-};
-
-static const unsigned char _json_trans_actions[] = {
-	0, 0, 113, 107, 53, 0, 0, 0, 
-	125, 59, 45, 0, 55, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 101, 51, 47, 0, 0, 45, 
-	49, 49, 104, 0, 0, 0, 0, 0, 
-	3, 0, 0, 0, 0, 0, 5, 15, 
-	0, 0, 71, 7, 13, 0, 74, 9, 
-	9, 9, 77, 80, 11, 37, 37, 37, 
-	0, 0, 0, 39, 0, 41, 86, 0, 
-	0, 0, 17, 19, 0, 21, 23, 0, 
-	25, 27, 0, 29, 31, 0, 33, 35, 
-	0, 135, 83, 135, 0, 0, 0, 0, 
-	0, 92, 0, 89, 89, 98, 43, 0, 
-	131, 95, 113, 107, 53, 0, 0, 0, 
-	125, 59, 69, 110, 45, 0, 55, 0, 
-	0, 0, 0, 0, 0, 119, 0, 0, 
-	0, 122, 0, 0, 0, 116, 0, 101, 
-	51, 47, 0, 0, 45, 49, 49, 104, 
-	0, 0, 128, 0, 57, 63, 65, 61, 
-	67
-};
-
-static const unsigned char _json_eof_actions[] = {
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 1, 0, 1, 0, 0, 1, 1, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 0, 0, 0, 0, 0, 
-	0, 0, 0, 57, 63, 65, 61, 67, 
-	0, 0, 0, 0, 0, 0
-};
-
-static const int json_start = 1;
-
-static const int json_en_number_machine = 23;
-static const int json_en_string_machine = 32;
-static const int json_en_duration_machine = 40;
-static const int json_en_timestamp_machine = 47;
-static const int json_en_fieldmask_machine = 75;
-static const int json_en_value_machine = 78;
-static const int json_en_main = 1;
-
-
-#line 2752 "upb/json/parser.rl"
-
-size_t parse(void *closure, const void *hd, const char *buf, size_t size,
-             const upb_bufhandle *handle) {
-  upb_json_parser *parser = closure;
-
-  /* Variables used by Ragel's generated code. */
-  int cs = parser->current_state;
-  int *stack = parser->parser_stack;
-  int top = parser->parser_top;
-
-  const char *p = buf;
-  const char *pe = buf + size;
-  const char *eof = &eof_ch;
-
-  parser->handle = handle;
-
-  UPB_UNUSED(hd);
-  UPB_UNUSED(handle);
-
-  capture_resume(parser, buf);
-
-  
-#line 2830 "upb/json/parser.c"
-	{
-	int _klen;
-	unsigned int _trans;
-	const char *_acts;
-	unsigned int _nacts;
-	const char *_keys;
-
-	if ( p == pe )
-		goto _test_eof;
-	if ( cs == 0 )
-		goto _out;
-_resume:
-	_keys = _json_trans_keys + _json_key_offsets[cs];
-	_trans = _json_index_offsets[cs];
-
-	_klen = _json_single_lengths[cs];
-	if ( _klen > 0 ) {
-		const char *_lower = _keys;
-		const char *_mid;
-		const char *_upper = _keys + _klen - 1;
-		while (1) {
-			if ( _upper < _lower )
-				break;
-
-			_mid = _lower + ((_upper-_lower) >> 1);
-			if ( (*p) < *_mid )
-				_upper = _mid - 1;
-			else if ( (*p) > *_mid )
-				_lower = _mid + 1;
-			else {
-				_trans += (unsigned int)(_mid - _keys);
-				goto _match;
-			}
-		}
-		_keys += _klen;
-		_trans += _klen;
-	}
-
-	_klen = _json_range_lengths[cs];
-	if ( _klen > 0 ) {
-		const char *_lower = _keys;
-		const char *_mid;
-		const char *_upper = _keys + (_klen<<1) - 2;
-		while (1) {
-			if ( _upper < _lower )
-				break;
-
-			_mid = _lower + (((_upper-_lower) >> 1) & ~1);
-			if ( (*p) < _mid[0] )
-				_upper = _mid - 2;
-			else if ( (*p) > _mid[1] )
-				_lower = _mid + 2;
-			else {
-				_trans += (unsigned int)((_mid - _keys)>>1);
-				goto _match;
-			}
-		}
-		_trans += _klen;
-	}
-
-_match:
-	_trans = _json_indicies[_trans];
-	cs = _json_trans_targs[_trans];
-
-	if ( _json_trans_actions[_trans] == 0 )
-		goto _again;
-
-	_acts = _json_actions + _json_trans_actions[_trans];
-	_nacts = (unsigned int) *_acts++;
-	while ( _nacts-- > 0 )
-	{
-		switch ( *_acts++ )
-		{
-	case 1:
-#line 2557 "upb/json/parser.rl"
-	{ p--; {cs = stack[--top]; goto _again;} }
-	break;
-	case 2:
-#line 2559 "upb/json/parser.rl"
-	{ p--; {stack[top++] = cs; cs = 23;goto _again;} }
-	break;
-	case 3:
-#line 2563 "upb/json/parser.rl"
-	{ start_text(parser, p); }
-	break;
-	case 4:
-#line 2564 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_text(parser, p)); }
-	break;
-	case 5:
-#line 2570 "upb/json/parser.rl"
-	{ start_hex(parser); }
-	break;
-	case 6:
-#line 2571 "upb/json/parser.rl"
-	{ hexdigit(parser, p); }
-	break;
-	case 7:
-#line 2572 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_hex(parser)); }
-	break;
-	case 8:
-#line 2578 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(escape(parser, p)); }
-	break;
-	case 9:
-#line 2584 "upb/json/parser.rl"
-	{ p--; {cs = stack[--top]; goto _again;} }
-	break;
-	case 10:
-#line 2589 "upb/json/parser.rl"
-	{ start_year(parser, p); }
-	break;
-	case 11:
-#line 2590 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_year(parser, p)); }
-	break;
-	case 12:
-#line 2594 "upb/json/parser.rl"
-	{ start_month(parser, p); }
-	break;
-	case 13:
-#line 2595 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_month(parser, p)); }
-	break;
-	case 14:
-#line 2599 "upb/json/parser.rl"
-	{ start_day(parser, p); }
-	break;
-	case 15:
-#line 2600 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_day(parser, p)); }
-	break;
-	case 16:
-#line 2604 "upb/json/parser.rl"
-	{ start_hour(parser, p); }
-	break;
-	case 17:
-#line 2605 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_hour(parser, p)); }
-	break;
-	case 18:
-#line 2609 "upb/json/parser.rl"
-	{ start_minute(parser, p); }
-	break;
-	case 19:
-#line 2610 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_minute(parser, p)); }
-	break;
-	case 20:
-#line 2614 "upb/json/parser.rl"
-	{ start_second(parser, p); }
-	break;
-	case 21:
-#line 2615 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_second(parser, p)); }
-	break;
-	case 22:
-#line 2620 "upb/json/parser.rl"
-	{ start_duration_base(parser, p); }
-	break;
-	case 23:
-#line 2621 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_duration_base(parser, p)); }
-	break;
-	case 24:
-#line 2623 "upb/json/parser.rl"
-	{ p--; {cs = stack[--top]; goto _again;} }
-	break;
-	case 25:
-#line 2628 "upb/json/parser.rl"
-	{ start_timestamp_base(parser); }
-	break;
-	case 26:
-#line 2630 "upb/json/parser.rl"
-	{ start_timestamp_fraction(parser, p); }
-	break;
-	case 27:
-#line 2631 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_timestamp_fraction(parser, p)); }
-	break;
-	case 28:
-#line 2633 "upb/json/parser.rl"
-	{ start_timestamp_zone(parser, p); }
-	break;
-	case 29:
-#line 2634 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_timestamp_zone(parser, p)); }
-	break;
-	case 30:
-#line 2636 "upb/json/parser.rl"
-	{ p--; {cs = stack[--top]; goto _again;} }
-	break;
-	case 31:
-#line 2641 "upb/json/parser.rl"
-	{ start_fieldmask_path_text(parser, p); }
-	break;
-	case 32:
-#line 2642 "upb/json/parser.rl"
-	{ end_fieldmask_path_text(parser, p); }
-	break;
-	case 33:
-#line 2647 "upb/json/parser.rl"
-	{ start_fieldmask_path(parser); }
-	break;
-	case 34:
-#line 2648 "upb/json/parser.rl"
-	{ end_fieldmask_path(parser); }
-	break;
-	case 35:
-#line 2654 "upb/json/parser.rl"
-	{ p--; {cs = stack[--top]; goto _again;} }
-	break;
-	case 36:
-#line 2659 "upb/json/parser.rl"
-	{
-        if (is_wellknown_msg(parser, UPB_WELLKNOWN_TIMESTAMP)) {
-          {stack[top++] = cs; cs = 47;goto _again;}
-        } else if (is_wellknown_msg(parser, UPB_WELLKNOWN_DURATION)) {
-          {stack[top++] = cs; cs = 40;goto _again;}
-        } else if (is_wellknown_msg(parser, UPB_WELLKNOWN_FIELDMASK)) {
-          {stack[top++] = cs; cs = 75;goto _again;}
-        } else {
-          {stack[top++] = cs; cs = 32;goto _again;}
-        }
-      }
-	break;
-	case 37:
-#line 2672 "upb/json/parser.rl"
-	{ p--; {stack[top++] = cs; cs = 78;goto _again;} }
-	break;
-	case 38:
-#line 2677 "upb/json/parser.rl"
-	{
-        if (is_wellknown_msg(parser, UPB_WELLKNOWN_ANY)) {
-          start_any_member(parser, p);
-        } else {
-          start_member(parser);
-        }
-      }
-	break;
-	case 39:
-#line 2684 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_membername(parser)); }
-	break;
-	case 40:
-#line 2687 "upb/json/parser.rl"
-	{
-        if (is_wellknown_msg(parser, UPB_WELLKNOWN_ANY)) {
-          end_any_member(parser, p);
-        } else {
-          end_member(parser);
-        }
-      }
-	break;
-	case 41:
-#line 2698 "upb/json/parser.rl"
-	{
-        if (is_wellknown_msg(parser, UPB_WELLKNOWN_ANY)) {
-          start_any_object(parser, p);
-        } else {
-          start_object(parser);
-        }
-      }
-	break;
-	case 42:
-#line 2707 "upb/json/parser.rl"
-	{
-        if (is_wellknown_msg(parser, UPB_WELLKNOWN_ANY)) {
-          CHECK_RETURN_TOP(end_any_object(parser, p));
-        } else {
-          end_object(parser);
-        }
-      }
-	break;
-	case 43:
-#line 2719 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(start_array(parser)); }
-	break;
-	case 44:
-#line 2723 "upb/json/parser.rl"
-	{ end_array(parser); }
-	break;
-	case 45:
-#line 2728 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(start_number(parser, p)); }
-	break;
-	case 46:
-#line 2729 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_number(parser, p)); }
-	break;
-	case 47:
-#line 2731 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(start_stringval(parser)); }
-	break;
-	case 48:
-#line 2732 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_stringval(parser)); }
-	break;
-	case 49:
-#line 2734 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_bool(parser, true)); }
-	break;
-	case 50:
-#line 2736 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_bool(parser, false)); }
-	break;
-	case 51:
-#line 2738 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_null(parser)); }
-	break;
-	case 52:
-#line 2740 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(start_subobject_full(parser)); }
-	break;
-	case 53:
-#line 2741 "upb/json/parser.rl"
-	{ end_subobject_full(parser); }
-	break;
-	case 54:
-#line 2746 "upb/json/parser.rl"
-	{ p--; {cs = stack[--top]; goto _again;} }
-	break;
-#line 3154 "upb/json/parser.c"
-		}
-	}
-
-_again:
-	if ( cs == 0 )
-		goto _out;
-	if ( ++p != pe )
-		goto _resume;
-	_test_eof: {}
-	if ( p == eof )
-	{
-	const char *__acts = _json_actions + _json_eof_actions[cs];
-	unsigned int __nacts = (unsigned int) *__acts++;
-	while ( __nacts-- > 0 ) {
-		switch ( *__acts++ ) {
-	case 0:
-#line 2555 "upb/json/parser.rl"
-	{ p--; {cs = stack[--top]; 	if ( p == pe )
-		goto _test_eof;
-goto _again;} }
-	break;
-	case 46:
-#line 2729 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_number(parser, p)); }
-	break;
-	case 49:
-#line 2734 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_bool(parser, true)); }
-	break;
-	case 50:
-#line 2736 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_bool(parser, false)); }
-	break;
-	case 51:
-#line 2738 "upb/json/parser.rl"
-	{ CHECK_RETURN_TOP(end_null(parser)); }
-	break;
-	case 53:
-#line 2741 "upb/json/parser.rl"
-	{ end_subobject_full(parser); }
-	break;
-#line 3196 "upb/json/parser.c"
-		}
-	}
-	}
-
-	_out: {}
-	}
-
-#line 2774 "upb/json/parser.rl"
-
-  if (p != pe) {
-    upb_status_seterrf(parser->status, "Parse error at '%.*s'\n", pe - p, p);
-  } else {
-    capture_suspend(parser, &p);
-  }
-
-error:
-  /* Save parsing state back to parser. */
-  parser->current_state = cs;
-  parser->parser_top = top;
-
-  return p - buf;
-}
-
-static bool end(void *closure, const void *hd) {
-  upb_json_parser *parser = closure;
-
-  /* Prevent compile warning on unused static constants. */
-  UPB_UNUSED(json_start);
-  UPB_UNUSED(json_en_duration_machine);
-  UPB_UNUSED(json_en_fieldmask_machine);
-  UPB_UNUSED(json_en_number_machine);
-  UPB_UNUSED(json_en_string_machine);
-  UPB_UNUSED(json_en_timestamp_machine);
-  UPB_UNUSED(json_en_value_machine);
-  UPB_UNUSED(json_en_main);
-
-  parse(parser, hd, &eof_ch, 0, NULL);
-
-  return parser->current_state >= 106;
-}
-
-static void json_parser_reset(upb_json_parser *p) {
-  int cs;
-  int top;
-
-  p->top = p->stack;
-  init_frame(p->top);
-
-  /* Emit Ragel initialization of the parser. */
-  
-#line 3247 "upb/json/parser.c"
-	{
-	cs = json_start;
-	top = 0;
-	}
-
-#line 2816 "upb/json/parser.rl"
-  p->current_state = cs;
-  p->parser_top = top;
-  accumulate_clear(p);
-  p->multipart_state = MULTIPART_INACTIVE;
-  p->capture = NULL;
-  p->accumulated = NULL;
-}
-
-static upb_json_parsermethod *parsermethod_new(upb_json_codecache *c,
-                                               const upb_msgdef *md) {
-  upb_msg_field_iter i;
-  upb_alloc *alloc = upb_arena_alloc(c->arena);
-
-  upb_json_parsermethod *m = upb_malloc(alloc, sizeof(*m));
-
-  m->cache = c;
-
-  upb_byteshandler_init(&m->input_handler_);
-  upb_byteshandler_setstring(&m->input_handler_, parse, m);
-  upb_byteshandler_setendstr(&m->input_handler_, end, m);
-
-  upb_strtable_init2(&m->name_table, UPB_CTYPE_CONSTPTR, alloc);
-
-  /* Build name_table */
-
-  for(upb_msg_field_begin(&i, md);
-      !upb_msg_field_done(&i);
-      upb_msg_field_next(&i)) {
-    const upb_fielddef *f = upb_msg_iter_field(&i);
-    upb_value v = upb_value_constptr(f);
-    char *buf;
-
-    /* Add an entry for the JSON name. */
-    size_t len = upb_fielddef_getjsonname(f, NULL, 0);
-    buf = upb_malloc(alloc, len);
-    upb_fielddef_getjsonname(f, buf, len);
-    upb_strtable_insert3(&m->name_table, buf, strlen(buf), v, alloc);
-
-    if (strcmp(buf, upb_fielddef_name(f)) != 0) {
-      /* Since the JSON name is different from the regular field name, add an
-       * entry for the raw name (compliant proto3 JSON parsers must accept
-       * both). */
-      const char *name = upb_fielddef_name(f);
-      upb_strtable_insert3(&m->name_table, name, strlen(name), v, alloc);
-    }
-  }
-
-  return m;
-}
-
-/* Public API *****************************************************************/
-
-upb_json_parser *upb_json_parser_create(upb_arena *arena,
-                                        const upb_json_parsermethod *method,
-                                        const upb_symtab* symtab,
-                                        upb_sink output,
-                                        upb_status *status,
-                                        bool ignore_json_unknown) {
-#ifndef NDEBUG
-  const size_t size_before = upb_arena_bytesallocated(arena);
-#endif
-  upb_json_parser *p = upb_arena_malloc(arena, sizeof(upb_json_parser));
-  if (!p) return false;
-
-  p->arena = arena;
-  p->method = method;
-  p->status = status;
-  p->limit = p->stack + UPB_JSON_MAX_DEPTH;
-  p->accumulate_buf = NULL;
-  p->accumulate_buf_size = 0;
-  upb_bytessink_reset(&p->input_, &method->input_handler_, p);
-
-  json_parser_reset(p);
-  p->top->sink = output;
-  p->top->m = upb_handlers_msgdef(output.handlers);
-  if (is_wellknown_msg(p, UPB_WELLKNOWN_ANY)) {
-    p->top->is_any = true;
-    p->top->any_frame = json_parser_any_frame_new(p);
-  } else {
-    p->top->is_any = false;
-    p->top->any_frame = NULL;
-  }
-  set_name_table(p, p->top);
-  p->symtab = symtab;
-
-  p->ignore_json_unknown = ignore_json_unknown;
-
-  /* If this fails, uncomment and increase the value in parser.h. */
-  /* fprintf(stderr, "%zd\n", upb_arena_bytesallocated(arena) - size_before); */
-  UPB_ASSERT_DEBUGVAR(upb_arena_bytesallocated(arena) - size_before <=
-                      UPB_JSON_PARSER_SIZE);
-  return p;
-}
-
-upb_bytessink upb_json_parser_input(upb_json_parser *p) {
-  return p->input_;
-}
-
-const upb_byteshandler *upb_json_parsermethod_inputhandler(
-    const upb_json_parsermethod *m) {
-  return &m->input_handler_;
-}
-
-upb_json_codecache *upb_json_codecache_new() {
-  upb_alloc *alloc;
-  upb_json_codecache *c;
-
-  c = upb_gmalloc(sizeof(*c));
-
-  c->arena = upb_arena_new();
-  alloc = upb_arena_alloc(c->arena);
-
-  upb_inttable_init2(&c->methods, UPB_CTYPE_CONSTPTR, alloc);
-
-  return c;
-}
-
-void upb_json_codecache_free(upb_json_codecache *c) {
-  upb_arena_free(c->arena);
-  upb_gfree(c);
-}
-
-const upb_json_parsermethod *upb_json_codecache_get(upb_json_codecache *c,
-                                                    const upb_msgdef *md) {
-  upb_json_parsermethod *m;
-  upb_value v;
-  upb_msg_field_iter i;
-  upb_alloc *alloc = upb_arena_alloc(c->arena);
-
-  if (upb_inttable_lookupptr(&c->methods, md, &v)) {
-    return upb_value_getconstptr(v);
-  }
-
-  m = parsermethod_new(c, md);
-  v = upb_value_constptr(m);
-
-  if (!m) return NULL;
-  if (!upb_inttable_insertptr2(&c->methods, md, v, alloc)) return NULL;
-
-  /* Populate parser methods for all submessages, so the name tables will
-   * be available during parsing. */
-  for(upb_msg_field_begin(&i, md);
-      !upb_msg_field_done(&i);
-      upb_msg_field_next(&i)) {
-    upb_fielddef *f = upb_msg_iter_field(&i);
-
-    if (upb_fielddef_issubmsg(f)) {
-      const upb_msgdef *subdef = upb_fielddef_msgsubdef(f);
-      const upb_json_parsermethod *sub_method =
-          upb_json_codecache_get(c, subdef);
-
-      if (!sub_method) return NULL;
-    }
-  }
-
-  return m;
-}