PHP updates for new upb APIs (#5604)

Makefile.am

@@ -591,6 +591,7 @@ php_EXTRA_DIST=                                                       \
   php/README.md                                                       \
   php/composer.json                                                   \
   php/ext/google/protobuf/array.c                                     \
+  php/ext/google/protobuf/builtin_descriptors.inc                     \
   php/ext/google/protobuf/config.m4                                   \
   php/ext/google/protobuf/def.c                                       \
   php/ext/google/protobuf/encode_decode.c                             \

php/ext/google/protobuf/builtin_descriptors.inc

@@ -0,0 +1,635 @@
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+  0x75, 0x72, 0x63, 0x65, 0x43, 0x6f, 0x64, 0x65, 0x49, 0x6e, 0x66, 0x6f,
+  0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x08, 0x6c,
+  0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x1a, 0xce, 0x01, 0x0a, 0x08,
+  0x4c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x16, 0x0a, 0x04,
+  0x70, 0x61, 0x74, 0x68, 0x18, 0x01, 0x20, 0x03, 0x28, 0x05, 0x42, 0x02,
+  0x10, 0x01, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68, 0x12, 0x16, 0x0a, 0x04,
+  0x73, 0x70, 0x61, 0x6e, 0x18, 0x02, 0x20, 0x03, 0x28, 0x05, 0x42, 0x02,
+  0x10, 0x01, 0x52, 0x04, 0x73, 0x70, 0x61, 0x6e, 0x12, 0x29, 0x0a, 0x10,
+  0x6c, 0x65, 0x61, 0x64, 0x69, 0x6e, 0x67, 0x5f, 0x63, 0x6f, 0x6d, 0x6d,
+  0x65, 0x6e, 0x74, 0x73, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0f,
+  0x6c, 0x65, 0x61, 0x64, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6d, 0x6d, 0x65,
+  0x6e, 0x74, 0x73, 0x12, 0x2b, 0x0a, 0x11, 0x74, 0x72, 0x61, 0x69, 0x6c,
+  0x69, 0x6e, 0x67, 0x5f, 0x63, 0x6f, 0x6d, 0x6d, 0x65, 0x6e, 0x74, 0x73,
+  0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x10, 0x74, 0x72, 0x61, 0x69,
+  0x6c, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6d, 0x6d, 0x65, 0x6e, 0x74, 0x73,
+  0x12, 0x3a, 0x0a, 0x19, 0x6c, 0x65, 0x61, 0x64, 0x69, 0x6e, 0x67, 0x5f,
+  0x64, 0x65, 0x74, 0x61, 0x63, 0x68, 0x65, 0x64, 0x5f, 0x63, 0x6f, 0x6d,
+  0x6d, 0x65, 0x6e, 0x74, 0x73, 0x18, 0x06, 0x20, 0x03, 0x28, 0x09, 0x52,
+  0x17, 0x6c, 0x65, 0x61, 0x64, 0x69, 0x6e, 0x67, 0x44, 0x65, 0x74, 0x61,
+  0x63, 0x68, 0x65, 0x64, 0x43, 0x6f, 0x6d, 0x6d, 0x65, 0x6e, 0x74, 0x73,
+  0x22, 0xd1, 0x01, 0x0a, 0x11, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x74,
+  0x65, 0x64, 0x43, 0x6f, 0x64, 0x65, 0x49, 0x6e, 0x66, 0x6f, 0x12, 0x4d,
+  0x0a, 0x0a, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e,
+  0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x2d, 0x2e, 0x67, 0x6f, 0x6f,
+  0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66,
+  0x2e, 0x47, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x43, 0x6f,
+  0x64, 0x65, 0x49, 0x6e, 0x66, 0x6f, 0x2e, 0x41, 0x6e, 0x6e, 0x6f, 0x74,
+  0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x0a, 0x61, 0x6e, 0x6e, 0x6f, 0x74,
+  0x61, 0x74, 0x69, 0x6f, 0x6e, 0x1a, 0x6d, 0x0a, 0x0a, 0x41, 0x6e, 0x6e,
+  0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x16, 0x0a, 0x04, 0x70,
+  0x61, 0x74, 0x68, 0x18, 0x01, 0x20, 0x03, 0x28, 0x05, 0x42, 0x02, 0x10,
+  0x01, 0x52, 0x04, 0x70, 0x61, 0x74, 0x68, 0x12, 0x1f, 0x0a, 0x0b, 0x73,
+  0x6f, 0x75, 0x72, 0x63, 0x65, 0x5f, 0x66, 0x69, 0x6c, 0x65, 0x18, 0x02,
+  0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65,
+  0x46, 0x69, 0x6c, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x62, 0x65, 0x67, 0x69,
+  0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x05, 0x52, 0x05, 0x62, 0x65, 0x67,
+  0x69, 0x6e, 0x12, 0x10, 0x0a, 0x03, 0x65, 0x6e, 0x64, 0x18, 0x04, 0x20,
+  0x01, 0x28, 0x05, 0x52, 0x03, 0x65, 0x6e, 0x64, 0x42, 0x8f, 0x01, 0x0a,
+  0x13, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e,
+  0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x42, 0x10, 0x44, 0x65,
+  0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72, 0x50, 0x72, 0x6f, 0x74,
+  0x6f, 0x73, 0x48, 0x01, 0x5a, 0x3e, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62,
+  0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2f,
+  0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x70, 0x72, 0x6f,
+  0x74, 0x6f, 0x63, 0x2d, 0x67, 0x65, 0x6e, 0x2d, 0x67, 0x6f, 0x2f, 0x64,
+  0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72, 0x3b, 0x64, 0x65,
+  0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72, 0xf8, 0x01, 0x01, 0xa2,
+  0x02, 0x03, 0x47, 0x50, 0x42, 0xaa, 0x02, 0x1a, 0x47, 0x6f, 0x6f, 0x67,
+  0x6c, 0x65, 0x2e, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e,
+  0x52, 0x65, 0x66, 0x6c, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e
+};
+unsigned int descriptor_proto_len = 7582;

php/ext/google/protobuf/def.c

@@ -32,6 +32,7 @@
 #include <Zend/zend_exceptions.h>
 
 #include "protobuf.h"
+#include "builtin_descriptors.inc"
 
 // Forward declare.
 static void descriptor_init_c_instance(Descriptor* intern TSRMLS_DC);
@@ -68,21 +69,6 @@ static void check_upb_status(const upb_status* status, const char* msg) {
   }
 }
 
-static void upb_filedef_free(void *r) {
-  upb_filedef *f = *(upb_filedef **)r;
-  size_t i;
-
-  for (i = 0; i < upb_filedef_depcount(f); i++) {
-    upb_filedef_unref(upb_filedef_dep(f, i), f);
-  }
-
-  upb_inttable_uninit(&f->defs);
-  upb_inttable_uninit(&f->deps);
-  upb_gfree((void *)f->name);
-  upb_gfree((void *)f->package);
-  upb_gfree(f);
-}
-
 // Camel-case the field name and append "Entry" for generated map entry name.
 // e.g. map<KeyType, ValueType> foo_map => FooMapEntry
 static void append_map_entry_name(char *result, const char *field_name,
@@ -108,13 +94,6 @@ static void append_map_entry_name(char *result, const char *field_name,
   strcat(result, "Entry");
 }
 
-#define CHECK_UPB(code, msg)             \
-  do {                                   \
-    upb_status status = UPB_STATUS_INIT; \
-    code;                                \
-    check_upb_status(&status, msg);      \
-  } while (0)
-
 // -----------------------------------------------------------------------------
 // GPBType
 // -----------------------------------------------------------------------------
@@ -172,40 +151,12 @@ static void descriptor_free_c(Descriptor *self TSRMLS_DC) {
   if (self->layout) {
     free_layout(self->layout);
   }
-  if (self->fill_handlers) {
-    upb_handlers_unref(self->fill_handlers, &self->fill_handlers);
-  }
-  if (self->fill_method) {
-    upb_pbdecodermethod_unref(self->fill_method, &self->fill_method);
-  }
-  if (self->json_fill_method) {
-    upb_json_parsermethod_unref(self->json_fill_method,
-                                &self->json_fill_method);
-  }
-  if (self->pb_serialize_handlers) {
-    upb_handlers_unref(self->pb_serialize_handlers,
-                       &self->pb_serialize_handlers);
-  }
-  if (self->json_serialize_handlers) {
-    upb_handlers_unref(self->json_serialize_handlers,
-                       &self->json_serialize_handlers);
-  }
-  if (self->json_serialize_handlers_preserve) {
-    upb_handlers_unref(self->json_serialize_handlers_preserve,
-                       &self->json_serialize_handlers_preserve);
-  }
 }
 
 static void descriptor_init_c_instance(Descriptor *desc TSRMLS_DC) {
   desc->msgdef = NULL;
   desc->layout = NULL;
   desc->klass = NULL;
-  desc->fill_handlers = NULL;
-  desc->fill_method = NULL;
-  desc->json_fill_method = NULL;
-  desc->pb_serialize_handlers = NULL;
-  desc->json_serialize_handlers = NULL;
-  desc->json_serialize_handlers_preserve = NULL;
 }
 
 PHP_METHOD(Descriptor, getClass) {
@@ -297,7 +248,7 @@ PHP_METHOD(Descriptor, getOneofDecl) {
   for(upb_msg_oneof_begin(&iter, intern->msgdef), i = 0;
       !upb_msg_oneof_done(&iter) && i < index;
       upb_msg_oneof_next(&iter), i++);
-  upb_oneofdef *oneof = upb_msg_iter_oneof(&iter);
+  const upb_oneofdef *oneof = upb_msg_iter_oneof(&iter);
 
   ZVAL_OBJ(return_value, oneof_descriptor_type->create_object(
                              oneof_descriptor_type TSRMLS_CC));
@@ -482,14 +433,13 @@ PHP_METHOD(FieldDescriptor, isMap) {
 
 PHP_METHOD(FieldDescriptor, getEnumType) {
   FieldDescriptor *intern = UNBOX(FieldDescriptor, getThis());
-  const upb_enumdef *enumdef = upb_fielddef_enumsubdef(intern->fielddef);
-  if (enumdef == NULL) {
-    char error_msg[100];
-    sprintf(error_msg, "Cannot get enum type for non-enum field '%s'",
-            upb_fielddef_name(intern->fielddef));
-    zend_throw_exception(NULL, error_msg, 0 TSRMLS_CC);
+  if (upb_fielddef_type(intern->fielddef) != UPB_TYPE_ENUM) {
+    zend_throw_exception_ex(NULL, 0 TSRMLS_CC,
+                            "Cannot get enum type for non-enum field '%s'",
+                            upb_fielddef_name(intern->fielddef));
     return;
   }
+  const upb_enumdef *enumdef = upb_fielddef_enumsubdef(intern->fielddef);
   PHP_PROTO_HASHTABLE_VALUE desc = get_def_obj(enumdef);
 
 #if PHP_MAJOR_VERSION < 7
@@ -502,14 +452,13 @@ PHP_METHOD(FieldDescriptor, getEnumType) {
 
 PHP_METHOD(FieldDescriptor, getMessageType) {
   FieldDescriptor *intern = UNBOX(FieldDescriptor, getThis());
-  const upb_msgdef *msgdef = upb_fielddef_msgsubdef(intern->fielddef);
-  if (msgdef == NULL) {
-    char error_msg[100];
-    sprintf(error_msg, "Cannot get message type for non-message field '%s'",
-            upb_fielddef_name(intern->fielddef));
-    zend_throw_exception(NULL, error_msg, 0 TSRMLS_CC);
+  if (upb_fielddef_type(intern->fielddef) != UPB_TYPE_MESSAGE) {
+    zend_throw_exception_ex(
+        NULL, 0 TSRMLS_CC, "Cannot get message type for non-message field '%s'",
+        upb_fielddef_name(intern->fielddef));
     return;
   }
+  const upb_msgdef *msgdef = upb_fielddef_msgsubdef(intern->fielddef);
   PHP_PROTO_HASHTABLE_VALUE desc = get_def_obj(msgdef);
 
 #if PHP_MAJOR_VERSION < 7
@@ -657,17 +606,24 @@ void init_generated_pool_once(TSRMLS_D) {
 static void internal_descriptor_pool_init_c_instance(
     InternalDescriptorPool *pool TSRMLS_DC) {
   pool->symtab = upb_symtab_new();
-
-  ALLOC_HASHTABLE(pool->pending_list);
-  zend_hash_init(pool->pending_list, 1, NULL, ZVAL_PTR_DTOR, 0);
+  pool->fill_handler_cache =
+      upb_handlercache_new(add_handlers_for_message, NULL);
+  pool->pb_serialize_handler_cache = upb_pb_encoder_newcache();
+  pool->json_serialize_handler_cache = upb_json_printer_newcache(false);
+  pool->json_serialize_handler_preserve_cache = upb_json_printer_newcache(true);
+  pool->fill_method_cache = upb_pbcodecache_new(pool->fill_handler_cache);
+  pool->json_fill_method_cache = upb_json_codecache_new();
 }
 
 static void internal_descriptor_pool_free_c(
     InternalDescriptorPool *pool TSRMLS_DC) {
   upb_symtab_free(pool->symtab);
-
-  zend_hash_destroy(pool->pending_list);
-  FREE_HASHTABLE(pool->pending_list);
+  upb_handlercache_free(pool->fill_handler_cache);
+  upb_handlercache_free(pool->pb_serialize_handler_cache);
+  upb_handlercache_free(pool->json_serialize_handler_cache);
+  upb_handlercache_free(pool->json_serialize_handler_preserve_cache);
+  upb_pbcodecache_free(pool->fill_method_cache);
+  upb_json_codecache_free(pool->json_fill_method_cache);
 }
 
 static void descriptor_pool_init_c_instance(DescriptorPool *pool TSRMLS_DC) {
@@ -821,11 +777,11 @@ static void fill_segment(const char *segment, int length,
   }
 }
 
-static void fill_namespace(const char *package, const char *namespace_given,
+static void fill_namespace(const char *package, const char *php_namespace,
                            stringsink *classname) {
-  if (namespace_given != NULL) {
-    stringsink_string(classname, NULL, namespace_given,
-                      strlen(namespace_given), NULL);
+  if (php_namespace != NULL) {
+    stringsink_string(classname, NULL, php_namespace, strlen(php_namespace),
+                      NULL);
     stringsink_string(classname, NULL, "\\", 1, NULL);
   } else if (package != NULL) {
     int i = 0, j, offset = 0;
@@ -845,7 +801,6 @@ static void fill_namespace(const char *package, const char *namespace_given,
 
 static void fill_classname(const char *fullname,
                            const char *package,
-                           const char *namespace_given,
                            const char *prefix,
                            stringsink *classname,
                            bool use_nested_submsg) {
@@ -879,118 +834,152 @@ static void fill_classname(const char *fullname,
   }
 }
 
-static void fill_qualified_classname(const char *fullname,
-                                     const char *package,
-                                     const char *namespace_given,
-                                     const char *prefix,
-                                     stringsink *classname,
-                                     bool use_nested_submsg) {
-  fill_namespace(package, namespace_given, classname);
-  fill_classname(fullname, package, namespace_given, prefix,
-                 classname, use_nested_submsg);
+static zend_class_entry *register_class(const upb_filedef *file,
+                                        const char *fullname,
+                                        PHP_PROTO_HASHTABLE_VALUE desc_php,
+                                        bool use_nested_submsg TSRMLS_DC) {
+  // Prepend '.' to package name to make it absolute. In the 5 additional
+  // bytes allocated, one for '.', one for trailing 0, and 3 for 'GPB' if
+  // given message is google.protobuf.Empty.
+  const char *package = upb_filedef_package(file);
+  const char *php_namespace = upb_filedef_phpnamespace(file);
+  const char *prefix = upb_filedef_phpprefix(file);
+  size_t classname_len =
+      classname_len_max(fullname, package, php_namespace, prefix);
+  char* after_package;
+  zend_class_entry* ret;
+  stringsink namesink;
+  stringsink_init(&namesink);
+
+  fill_namespace(package, php_namespace, &namesink);
+  fill_classname(fullname, package, prefix, &namesink, use_nested_submsg);
+
+  PHP_PROTO_CE_DECLARE pce;
+  if (php_proto_zend_lookup_class(namesink.ptr, namesink.len, &pce) ==
+      FAILURE) {
+    zend_error(
+        E_ERROR,
+        "Generated message class %s hasn't been defined (%s, %s, %s, %s)",
+        namesink.ptr, fullname, package, php_namespace, prefix);
+    return NULL;
+  }
+  ret = PHP_PROTO_CE_UNREF(pce);
+  add_ce_obj(ret, desc_php);
+  add_proto_obj(fullname, desc_php);
+  stringsink_uninit(&namesink);
+  return ret;
+}
+
+bool depends_on_descriptor(const google_protobuf_FileDescriptorProto* file) {
+  const upb_strview *deps;
+  upb_strview name = upb_strview_makez("google/protobuf/descriptor.proto");
+  size_t i, n;
+
+  deps = google_protobuf_FileDescriptorProto_dependency(file, &n);
+  for (i = 0; i < n; i++) {
+    if (upb_strview_eql(deps[i], name)) {
+      return true;
+    }
+  }
+
+  return false;
 }
 
-static void classname_no_prefix(const char *fullname, const char *package_name,
-                                char *class_name) {
-  size_t i = 0, j;
-  bool first_char = true, is_reserved = false;
-  size_t pkg_name_len = package_name == NULL ? 0 : strlen(package_name);
-  size_t message_name_start = package_name == NULL ? 0 : pkg_name_len + 1;
-  size_t message_len = (strlen(fullname) - message_name_start);
-
-  // Submessage is concatenated with its containing messages by '_'.
-  for (j = message_name_start; j < message_name_start + message_len; j++) {
-    if (fullname[j] == '.') {
-      class_name[i++] = '_';
-    } else {
-      class_name[i++] = fullname[j];
+const upb_filedef *parse_and_add_descriptor(const char *data,
+                                            PHP_PROTO_SIZE data_len,
+                                            InternalDescriptorPool *pool,
+                                            upb_arena *arena) {
+  size_t n;
+  google_protobuf_FileDescriptorSet *set;
+  const google_protobuf_FileDescriptorProto* const* files;
+  const upb_filedef* file;
+  upb_status status;
+
+  set = google_protobuf_FileDescriptorSet_parsenew(
+      upb_strview_make(data, data_len), arena);
+
+  if (!set) {
+    zend_error(E_ERROR, "Failed to parse binary descriptor\n");
+    return false;
+  }
+
+  files = google_protobuf_FileDescriptorSet_file(set, &n);
+
+  if (n != 1) {
+    zend_error(E_ERROR, "Serialized descriptors should have exactly one file");
+    return false;
+  }
+
+  // The PHP code generator currently special-cases descriptor.proto.  It
+  // doesn't add it as a dependency even if the proto file actually does
+  // depend on it.
+  if (depends_on_descriptor(files[0]) &&
+      upb_symtab_lookupfile(pool->symtab, "google/protobuf/descriptor.proto") ==
+          NULL) {
+    if (!parse_and_add_descriptor((char *)descriptor_proto,
+                                  descriptor_proto_len, pool, arena)) {
+      return false;
     }
   }
+
+  upb_status_clear(&status);
+  file = upb_symtab_addfile(pool->symtab, files[0], &status);
+  check_upb_status(&status, "Unable to load descriptor");
+  return file;
 }
 
 void internal_add_generated_file(const char *data, PHP_PROTO_SIZE data_len,
                                  InternalDescriptorPool *pool,
                                  bool use_nested_submsg TSRMLS_DC) {
-  upb_filedef **files;
-  size_t i;
-
-  CHECK_UPB(files = upb_loaddescriptor(data, data_len, &pool, &status),
-            "Parse binary descriptors to internal descriptors failed");
-
-  // This method is called only once in each file.
-  assert(files[0] != NULL);
-  assert(files[1] == NULL);
+  int i;
+  upb_arena *arena;
+  const upb_filedef* file;
 
-  CHECK_UPB(upb_symtab_addfile(pool->symtab, files[0], &status),
-            "Unable to add file to DescriptorPool");
+  arena = upb_arena_new();
+  file = parse_and_add_descriptor(data, data_len, pool, arena);
+  upb_arena_free(arena);
+  if (!file) return;
 
   // For each enum/message, we need its PHP class, upb descriptor and its PHP
   // wrapper. These information are needed later for encoding, decoding and type
   // checking. However, sometimes we just have one of them. In order to find
   // them quickly, here, we store the mapping for them.
-  for (i = 0; i < upb_filedef_defcount(files[0]); i++) {
-    const upb_def *def = upb_filedef_def(files[0], i);
-    switch (upb_def_type(def)) {
-#define CASE_TYPE(def_type, def_type_lower, desc_type, desc_type_lower)        \
-  case UPB_DEF_##def_type: {                                                   \
-    CREATE_HASHTABLE_VALUE(desc, desc_php, desc_type, desc_type_lower##_type); \
-    const upb_##def_type_lower *def_type_lower =                               \
-        upb_downcast_##def_type_lower(def);                                    \
-    desc->def_type_lower = def_type_lower;                                     \
-    add_def_obj(desc->def_type_lower, desc_php);                               \
-    /* Unlike other messages, MapEntry is shared by all map fields and doesn't \
-     * have generated PHP class.*/                                             \
-    if (upb_def_type(def) == UPB_DEF_MSG &&                                    \
-        upb_msgdef_mapentry(upb_downcast_msgdef(def))) {                       \
-      break;                                                                   \
-    }                                                                          \
-    /* Prepend '.' to package name to make it absolute. In the 5 additional    \
-     * bytes allocated, one for '.', one for trailing 0, and 3 for 'GPB' if    \
-     * given message is google.protobuf.Empty.*/                               \
-    const char *fullname = upb_##def_type_lower##_fullname(def_type_lower);    \
-    const char *package = upb_filedef_package(files[0]);                       \
-    const char *php_namespace = upb_filedef_phpnamespace(files[0]);            \
-    const char *prefix_given = upb_filedef_phpprefix(files[0]);                \
-    stringsink namesink;                                                       \
-    stringsink_init(&namesink);                                                \
-    fill_qualified_classname(fullname, package, php_namespace,                 \
-                             prefix_given, &namesink, use_nested_submsg);      \
-    PHP_PROTO_CE_DECLARE pce;                                                  \
-    if (php_proto_zend_lookup_class(namesink.ptr, namesink.len, &pce) ==       \
-        FAILURE) {                                                             \
-      zend_error(E_ERROR, "Generated message class %s hasn't been defined",    \
-                 namesink.ptr);                                                \
-      return;                                                                  \
-    } else {                                                                   \
-      desc->klass = PHP_PROTO_CE_UNREF(pce);                                   \
-    }                                                                          \
-    add_ce_obj(desc->klass, desc_php);                                         \
-    add_proto_obj(upb_##def_type_lower##_fullname(desc->def_type_lower),       \
-                  desc_php);                                                   \
-    stringsink_uninit(&namesink);                                              \
-    break;                                                                     \
-  }
 
-      CASE_TYPE(MSG, msgdef, Descriptor, descriptor)
-      CASE_TYPE(ENUM, enumdef, EnumDescriptor, enum_descriptor)
-#undef CASE_TYPE
+  for (i = 0; i < upb_filedef_msgcount(file); i++) {
+    const upb_msgdef *msgdef = upb_filedef_msg(file, i);
+    CREATE_HASHTABLE_VALUE(desc, desc_php, Descriptor, descriptor_type);
+    desc->msgdef = msgdef;
+    desc->pool = pool;
+    add_def_obj(desc->msgdef, desc_php);
+
+    // Unlike other messages, MapEntry is shared by all map fields and doesn't
+    // have generated PHP class.
+    if (upb_msgdef_mapentry(msgdef)) {
+      continue;
+    }
+
+    desc->klass = register_class(file, upb_msgdef_fullname(msgdef), desc_php,
+                                 use_nested_submsg TSRMLS_CC);
 
-      default:
-        break;
+    if (desc->klass == NULL) {
+      return;
     }
+
+    build_class_from_descriptor(desc_php TSRMLS_CC);
   }
 
-  for (i = 0; i < upb_filedef_defcount(files[0]); i++) {
-    const upb_def *def = upb_filedef_def(files[0], i);
-    if (upb_def_type(def) == UPB_DEF_MSG) {
-      const upb_msgdef *msgdef = upb_downcast_msgdef(def);
-      PHP_PROTO_HASHTABLE_VALUE desc_php = get_def_obj(msgdef);
-      build_class_from_descriptor(desc_php TSRMLS_CC);
+  for (i = 0; i < upb_filedef_enumcount(file); i++) {
+    const upb_enumdef *enumdef = upb_filedef_enum(file, i);
+    CREATE_HASHTABLE_VALUE(desc, desc_php, EnumDescriptor, enum_descriptor_type);
+    desc->enumdef = enumdef;
+    add_def_obj(desc->enumdef, desc_php);
+    desc->klass = register_class(file, upb_enumdef_fullname(enumdef), desc_php,
+                                 use_nested_submsg TSRMLS_CC);
+
+    if (desc->klass == NULL) {
+      return;
     }
   }
-
-  upb_filedef_unref(files[0], &pool);
-  upb_gfree(files);
 }
 
 PHP_METHOD(InternalDescriptorPool, internalAddGeneratedFile) {

php/ext/google/protobuf/encode_decode.c

@@ -89,7 +89,8 @@ void stringsink_uninit_opaque(void *sink) { stringsink_uninit(sink); }
 // if any error occurs.
 #define STACK_ENV_STACKBYTES 4096
 typedef struct {
-  upb_env env;
+  upb_arena *arena;
+  upb_status status;
   const char *php_error_template;
   char allocbuf[STACK_ENV_STACKBYTES];
 } stackenv;
@@ -98,31 +99,22 @@ typedef struct {
 static void stackenv_init(stackenv* se, const char* errmsg);
 static void stackenv_uninit(stackenv* se);
 
-// Callback invoked by upb if any error occurs during parsing or serialization.
-static bool env_error_func(void* ud, const upb_status* status) {
-    char err_msg[100] = "";
-    stackenv* se = ud;
-    // Free the env -- zend_error will longjmp up the stack past the
-    // encode/decode function so it would not otherwise have been freed.
-    stackenv_uninit(se);
-
-    // TODO(teboring): have a way to verify that this is actually a parse error,
-    // instead of just throwing "parse error" unconditionally.
-    sprintf(err_msg, se->php_error_template, upb_status_errmsg(status));
-    TSRMLS_FETCH();
-    zend_throw_exception(NULL, err_msg, 0 TSRMLS_CC);
-    // Never reached.
-    return false;
-}
-
 static void stackenv_init(stackenv* se, const char* errmsg) {
   se->php_error_template = errmsg;
-  upb_env_init2(&se->env, se->allocbuf, sizeof(se->allocbuf), NULL);
-  upb_env_seterrorfunc(&se->env, env_error_func, se);
+  se->arena = upb_arena_new();
+  upb_status_clear(&se->status);
 }
 
 static void stackenv_uninit(stackenv* se) {
-  upb_env_uninit(&se->env);
+  upb_arena_free(se->arena);
+
+  if (!upb_ok(&se->status)) {
+    // TODO(teboring): have a way to verify that this is actually a parse error,
+    // instead of just throwing "parse error" unconditionally.
+    TSRMLS_FETCH();
+    zend_throw_exception_ex(NULL, 0 TSRMLS_CC, se->php_error_template,
+                            upb_status_errmsg(&se->status));
+  }
 }
 
 // -----------------------------------------------------------------------------
@@ -131,7 +123,7 @@ static void stackenv_uninit(stackenv* se) {
 
 // TODO(teboring): This shoud be a bit in upb_msgdef
 static bool is_wrapper_msg(const upb_msgdef *msg) {
-  return !strcmp(upb_filedef_name(upb_msgdef_upcast(msg)->file),
+  return !strcmp(upb_filedef_name(upb_msgdef_file(msg)),
                  "google/protobuf/wrappers.proto");
 }
 
@@ -462,11 +454,6 @@ typedef struct {
   size_t ofs;
   upb_fieldtype_t key_field_type;
   upb_fieldtype_t value_field_type;
-
-  // We know that we can hold this reference because the handlerdata has the
-  // same lifetime as the upb_handlers struct, and the upb_handlers struct holds
-  // a reference to the upb_msgdef, which in turn has references to its subdefs.
-  const upb_def* value_field_subdef;
 } map_handlerdata_t;
 
 // Temporary frame for map parsing: at the beginning of a map entry message, a
@@ -671,7 +658,6 @@ static map_handlerdata_t* new_map_handlerdata(
   value_field = upb_msgdef_itof(mapentry_def, MAP_VALUE_FIELD);
   assert(value_field != NULL);
   hd->value_field_type = upb_fielddef_type(value_field);
-  hd->value_field_subdef = upb_fielddef_subdef(value_field);
 
   return hd;
 }
@@ -831,10 +817,9 @@ static void* oneofsubmsg_handler(void* closure, const void* hd) {
 static void add_handlers_for_repeated_field(upb_handlers *h,
                                             const upb_fielddef *f,
                                             size_t offset) {
-  upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
-  upb_handlerattr_sethandlerdata(&attr, newhandlerdata(h, offset));
+  upb_handlerattr attr = UPB_HANDLERATTR_INIT;
+  attr.handler_data = newhandlerdata(h, offset);
   upb_handlers_setstartseq(h, f, startseq_handler, &attr);
-  upb_handlerattr_uninit(&attr);
 
   switch (upb_fielddef_type(f)) {
 
@@ -862,10 +847,9 @@ static void add_handlers_for_repeated_field(upb_handlers *h,
       break;
     }
     case UPB_TYPE_MESSAGE: {
-      upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
-      upb_handlerattr_sethandlerdata(&attr, newsubmsghandlerdata(h, 0, f));
+      upb_handlerattr attr = UPB_HANDLERATTR_INIT;
+      attr.handler_data = newsubmsghandlerdata(h, 0, f);
       upb_handlers_setstartsubmsg(h, f, appendsubmsg_handler, &attr);
-      upb_handlerattr_uninit(&attr);
       break;
     }
   }
@@ -876,13 +860,12 @@ static void add_handlers_for_singular_field(upb_handlers *h,
                                             const upb_fielddef *f,
                                             size_t offset) {
   switch (upb_fielddef_type(f)) {
-
-#define SET_HANDLER(utype, ltype)                                     \
-  case utype: {                                                       \
-    upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;               \
-    upb_handlerattr_sethandlerdata(&attr, newhandlerdata(h, offset)); \
-    upb_handlers_set##ltype(h, f, ltype##_handler, &attr);            \
-    break;                                                            \
+#define SET_HANDLER(utype, ltype)                          \
+  case utype: {                                            \
+    upb_handlerattr attr = UPB_HANDLERATTR_INIT;           \
+    attr.handler_data = newhandlerdata(h, offset);         \
+    upb_handlers_set##ltype(h, f, ltype##_handler, &attr); \
+    break;                                                 \
   }
 
     SET_HANDLER(UPB_TYPE_BOOL,   bool);
@@ -898,19 +881,17 @@ static void add_handlers_for_singular_field(upb_handlers *h,
 
     case UPB_TYPE_STRING:
     case UPB_TYPE_BYTES: {
-      upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
-      upb_handlerattr_sethandlerdata(&attr, newhandlerdata(h, offset));
+      upb_handlerattr attr = UPB_HANDLERATTR_INIT;
+      attr.handler_data = newhandlerdata(h, offset);
       upb_handlers_setstartstr(h, f, str_handler, &attr);
       upb_handlers_setstring(h, f, stringdata_handler, &attr);
       upb_handlers_setendstr(h, f, str_end_handler, &attr);
-      upb_handlerattr_uninit(&attr);
       break;
     }
     case UPB_TYPE_MESSAGE: {
-      upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
-      upb_handlerattr_sethandlerdata(&attr, newsubmsghandlerdata(h, offset, f));
+      upb_handlerattr attr = UPB_HANDLERATTR_INIT;
+      attr.handler_data = newsubmsghandlerdata(h, offset, f);
       upb_handlers_setstartsubmsg(h, f, submsg_handler, &attr);
-      upb_handlerattr_uninit(&attr);
       break;
     }
   }
@@ -923,12 +904,11 @@ static void add_handlers_for_mapfield(upb_handlers* h,
                                       Descriptor* desc) {
   const upb_msgdef* map_msgdef = upb_fielddef_msgsubdef(fielddef);
   map_handlerdata_t* hd = new_map_handlerdata(offset, map_msgdef, desc);
-  upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
+  upb_handlerattr attr = UPB_HANDLERATTR_INIT;
 
   upb_handlers_addcleanup(h, hd, free);
-  upb_handlerattr_sethandlerdata(&attr, hd);
+  attr.handler_data = hd;
   upb_handlers_setstartsubmsg(h, fielddef, startmapentry_handler, &attr);
-  upb_handlerattr_uninit(&attr);
 }
 
 // Adds handlers to a map-entry msgdef.
@@ -937,10 +917,10 @@ static void add_handlers_for_mapentry(const upb_msgdef* msgdef, upb_handlers* h,
   const upb_fielddef* key_field = map_entry_key(msgdef);
   const upb_fielddef* value_field = map_entry_value(msgdef);
   map_handlerdata_t* hd = new_map_handlerdata(0, msgdef, desc);
-  upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
+  upb_handlerattr attr = UPB_HANDLERATTR_INIT;
 
   upb_handlers_addcleanup(h, hd, free);
-  upb_handlerattr_sethandlerdata(&attr, hd);
+  attr.handler_data = hd;
   upb_handlers_setendmsg(h, endmap_handler, &attr);
 
   add_handlers_for_singular_field(h, key_field,
@@ -959,10 +939,9 @@ static void add_handlers_for_oneof_field(upb_handlers *h,
                                          size_t oneof_case_offset,
                                          int property_cache_offset) {
 
-  upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
-  upb_handlerattr_sethandlerdata(
-      &attr, newoneofhandlerdata(h, offset, oneof_case_offset,
-                                 property_cache_offset, m, f));
+  upb_handlerattr attr = UPB_HANDLERATTR_INIT;
+  attr.handler_data = newoneofhandlerdata(h, offset, oneof_case_offset,
+                                          property_cache_offset, m, f);
 
   switch (upb_fielddef_type(f)) {
 
@@ -994,8 +973,6 @@ static void add_handlers_for_oneof_field(upb_handlers *h,
       break;
     }
   }
-
-  upb_handlerattr_uninit(&attr);
 }
 
 static bool add_unknown_handler(void* closure, const void* hd, const char* buf,
@@ -1016,8 +993,7 @@ static bool add_unknown_handler(void* closure, const void* hd, const char* buf,
   return true;
 }
 
-static void add_handlers_for_message(const void* closure,
-                                     upb_handlers* h) {
+void add_handlers_for_message(const void* closure, upb_handlers* h) {
   const upb_msgdef* msgdef = upb_handlers_msgdef(h);
   TSRMLS_FETCH();
   Descriptor* desc =
@@ -1039,8 +1015,8 @@ static void add_handlers_for_message(const void* closure,
     desc->layout = create_layout(desc->msgdef);
   }
 
-  upb_handlerattr attr = UPB_HANDLERATTR_INITIALIZER;
-  upb_handlerattr_sethandlerdata(&attr, newunknownfieldshandlerdata(h));
+  upb_handlerattr attr = UPB_HANDLERATTR_INIT;
+  attr.handler_data = newunknownfieldshandlerdata(h);
   upb_handlers_setunknown(h, add_unknown_handler, &attr);
 
   for (upb_msg_field_begin(&i, desc->msgdef);
@@ -1066,84 +1042,52 @@ static void add_handlers_for_message(const void* closure,
   }
 }
 
-// Creates upb handlers for populating a message.
-static const upb_handlers *new_fill_handlers(Descriptor* desc,
-                                             const void* owner) {
-  // TODO(cfallin, haberman): once upb gets a caching/memoization layer for
-  // handlers, reuse subdef handlers so that e.g. if we already parse
-  // B-with-field-of-type-C, we don't have to rebuild the whole hierarchy to
-  // parse A-with-field-of-type-B-with-field-of-type-C.
-  return upb_handlers_newfrozen(desc->msgdef, owner,
-                                add_handlers_for_message, NULL);
-}
-
 // Constructs the handlers for filling a message's data into an in-memory
 // object.
 const upb_handlers* get_fill_handlers(Descriptor* desc) {
-  if (!desc->fill_handlers) {
-    desc->fill_handlers =
-        new_fill_handlers(desc, &desc->fill_handlers);
-  }
-  return desc->fill_handlers;
-}
-
-const upb_pbdecodermethod *new_fillmsg_decodermethod(Descriptor* desc,
-                                                     const void* owner) {
-  const upb_handlers* handlers = get_fill_handlers(desc);
-  upb_pbdecodermethodopts opts;
-  upb_pbdecodermethodopts_init(&opts, handlers);
-
-  return upb_pbdecodermethod_new(&opts, owner);
+  return upb_handlercache_get(desc->pool->fill_handler_cache, desc->msgdef);
 }
 
 static const upb_pbdecodermethod *msgdef_decodermethod(Descriptor* desc) {
-  if (desc->fill_method == NULL) {
-    desc->fill_method = new_fillmsg_decodermethod(
-        desc, &desc->fill_method);
-  }
-  return desc->fill_method;
+  return upb_pbcodecache_get(desc->pool->fill_method_cache, desc->msgdef);
 }
 
 static const upb_json_parsermethod *msgdef_jsonparsermethod(Descriptor* desc) {
-  if (desc->json_fill_method == NULL) {
-    desc->json_fill_method =
-        upb_json_parsermethod_new(desc->msgdef, &desc->json_fill_method);
-  }
-  return desc->json_fill_method;
+  return upb_json_codecache_get(desc->pool->json_fill_method_cache, desc->msgdef);
 }
 
 // -----------------------------------------------------------------------------
 // Serializing.
 // -----------------------------------------------------------------------------
 
-static void putmsg(zval* msg, const Descriptor* desc, upb_sink* sink,
+static void putmsg(zval* msg, const Descriptor* desc, upb_sink sink,
                    int depth, bool is_json TSRMLS_DC);
 static void putrawmsg(MessageHeader* msg, const Descriptor* desc,
-                      upb_sink* sink, int depth, bool is_json,
+                      upb_sink sink, int depth, bool is_json,
                       bool open_msg TSRMLS_DC);
 static void putjsonany(MessageHeader* msg, const Descriptor* desc,
-                       upb_sink* sink, int depth TSRMLS_DC);
+                       upb_sink sink, int depth TSRMLS_DC);
 static void putjsonlistvalue(
     MessageHeader* msg, const Descriptor* desc,
-    upb_sink* sink, int depth TSRMLS_DC);
+    upb_sink sink, int depth TSRMLS_DC);
 static void putjsonstruct(
     MessageHeader* msg, const Descriptor* desc,
-    upb_sink* sink, int depth TSRMLS_DC);
+    upb_sink sink, int depth TSRMLS_DC);
 
-static void putstr(zval* str, const upb_fielddef* f, upb_sink* sink,
+static void putstr(zval* str, const upb_fielddef* f, upb_sink sink,
                    bool force_default);
 
 static void putrawstr(const char* str, int len, const upb_fielddef* f,
-                      upb_sink* sink, bool force_default);
+                      upb_sink sink, bool force_default);
 
-static void putsubmsg(zval* submsg, const upb_fielddef* f, upb_sink* sink,
+static void putsubmsg(zval* submsg, const upb_fielddef* f, upb_sink sink,
                       int depth, bool is_json TSRMLS_DC);
 static void putrawsubmsg(MessageHeader* submsg, const upb_fielddef* f,
-                         upb_sink* sink, int depth, bool is_json TSRMLS_DC);
+                         upb_sink sink, int depth, bool is_json TSRMLS_DC);
 
-static void putarray(zval* array, const upb_fielddef* f, upb_sink* sink,
+static void putarray(zval* array, const upb_fielddef* f, upb_sink sink,
                      int depth, bool is_json TSRMLS_DC);
-static void putmap(zval* map, const upb_fielddef* f, upb_sink* sink,
+static void putmap(zval* map, const upb_fielddef* f, upb_sink sink,
                    int depth, bool is_json TSRMLS_DC);
 
 static upb_selector_t getsel(const upb_fielddef* f, upb_handlertype_t type) {
@@ -1155,7 +1099,7 @@ static upb_selector_t getsel(const upb_fielddef* f, upb_handlertype_t type) {
 
 static void put_optional_value(const void* memory, int len,
                                const upb_fielddef* f,
-                               int depth, upb_sink* sink,
+                               int depth, upb_sink sink,
                                bool is_json TSRMLS_DC) {
   assert(upb_fielddef_label(f) == UPB_LABEL_OPTIONAL);
 
@@ -1229,7 +1173,7 @@ static int raw_value_len(void* memory, int len, const upb_fielddef* f) {
   }
 }
 
-static void putmap(zval* map, const upb_fielddef* f, upb_sink* sink,
+static void putmap(zval* map, const upb_fielddef* f, upb_sink sink,
                    int depth, bool is_json TSRMLS_DC) {
   upb_sink subsink;
   const upb_fielddef* key_field;
@@ -1252,29 +1196,29 @@ static void putmap(zval* map, const upb_fielddef* f, upb_sink* sink,
     upb_status status;
 
     upb_sink entry_sink;
-    upb_sink_startsubmsg(&subsink, getsel(f, UPB_HANDLER_STARTSUBMSG),
+    upb_sink_startsubmsg(subsink, getsel(f, UPB_HANDLER_STARTSUBMSG),
                          &entry_sink);
-    upb_sink_startmsg(&entry_sink);
+    upb_sink_startmsg(entry_sink);
 
     // Serialize key.
     const char *key = map_iter_key(&it, &len);
     put_optional_value(key, len, key_field, depth + 1,
-                       &entry_sink, is_json TSRMLS_CC);
+                       entry_sink, is_json TSRMLS_CC);
 
     // Serialize value.
     upb_value value = map_iter_value(&it, &len);
     put_optional_value(raw_value(upb_value_memory(&value), value_field),
                        raw_value_len(upb_value_memory(&value), len, value_field),
-                       value_field, depth + 1, &entry_sink, is_json TSRMLS_CC);
+                       value_field, depth + 1, entry_sink, is_json TSRMLS_CC);
 
-    upb_sink_endmsg(&entry_sink, &status);
-    upb_sink_endsubmsg(&subsink, getsel(f, UPB_HANDLER_ENDSUBMSG));
+    upb_sink_endmsg(entry_sink, &status);
+    upb_sink_endsubmsg(subsink, getsel(f, UPB_HANDLER_ENDSUBMSG));
   }
 
   upb_sink_endseq(sink, getsel(f, UPB_HANDLER_ENDSEQ));
 }
 
-static void putmsg(zval* msg_php, const Descriptor* desc, upb_sink* sink,
+static void putmsg(zval* msg_php, const Descriptor* desc, upb_sink sink,
                    int depth, bool is_json TSRMLS_DC) {
   MessageHeader* msg = UNBOX(MessageHeader, msg_php);
   putrawmsg(msg, desc, sink, depth, is_json, true TSRMLS_CC);
@@ -1284,7 +1228,7 @@ static const upb_handlers* msgdef_json_serialize_handlers(
     Descriptor* desc, bool preserve_proto_fieldnames);
 
 static void putjsonany(MessageHeader* msg, const Descriptor* desc,
-                       upb_sink* sink, int depth TSRMLS_DC) {
+                       upb_sink sink, int depth TSRMLS_DC) {
   upb_status status;
   const upb_fielddef* type_field = upb_msgdef_itof(desc->msgdef, UPB_ANY_TYPE);
   const upb_fielddef* value_field = upb_msgdef_itof(desc->msgdef, UPB_ANY_VALUE);
@@ -1360,8 +1304,8 @@ static void putjsonany(MessageHeader* msg, const Descriptor* desc,
 
       subsink.handlers =
           msgdef_json_serialize_handlers(payload_desc, true);
-      subsink.closure = sink->closure;
-      putrawmsg(intern, payload_desc, &subsink, depth, true,
+      subsink.closure = sink.closure;
+      putrawmsg(intern, payload_desc, subsink, depth, true,
                 is_wellknown TSRMLS_CC);
 
       zval_dtor(&val);
@@ -1373,7 +1317,7 @@ static void putjsonany(MessageHeader* msg, const Descriptor* desc,
 
 static void putjsonlistvalue(
     MessageHeader* msg, const Descriptor* desc,
-    upb_sink* sink, int depth TSRMLS_DC) {
+    upb_sink sink, int depth TSRMLS_DC) {
   upb_status status;
   upb_sink subsink;
   const upb_fielddef* f = upb_msgdef_itof(desc->msgdef, 1);
@@ -1403,7 +1347,7 @@ static void putjsonlistvalue(
 
 static void putjsonstruct(
     MessageHeader* msg, const Descriptor* desc,
-    upb_sink* sink, int depth TSRMLS_DC) {
+    upb_sink sink, int depth TSRMLS_DC) {
   upb_status status;
   upb_sink subsink;
   const upb_fielddef* f = upb_msgdef_itof(desc->msgdef, 1);
@@ -1430,7 +1374,7 @@ static void putjsonstruct(
 }
 
 static void putrawmsg(MessageHeader* msg, const Descriptor* desc,
-                      upb_sink* sink, int depth, bool is_json,
+                      upb_sink sink, int depth, bool is_json,
                       bool open_msg TSRMLS_DC) {
   upb_msg_field_iter i;
   upb_status status;
@@ -1551,7 +1495,7 @@ static void putrawmsg(MessageHeader* msg, const Descriptor* desc,
 }
 
 static void putstr(zval* str, const upb_fielddef *f,
-                   upb_sink *sink, bool force_default) {
+                   upb_sink sink, bool force_default) {
   upb_sink subsink;
 
   if (ZVAL_IS_NULL(str)) return;
@@ -1571,7 +1515,7 @@ static void putstr(zval* str, const upb_fielddef *f,
       zend_error(E_USER_ERROR, "Given string is not UTF8 encoded.");
       return;
     }
-    upb_sink_putstring(&subsink, getsel(f, UPB_HANDLER_STRING), Z_STRVAL_P(str),
+    upb_sink_putstring(subsink, getsel(f, UPB_HANDLER_STRING), Z_STRVAL_P(str),
                        Z_STRLEN_P(str), NULL);
   }
 
@@ -1579,7 +1523,7 @@ static void putstr(zval* str, const upb_fielddef *f,
 }
 
 static void putrawstr(const char* str, int len, const upb_fielddef* f,
-                      upb_sink* sink, bool force_default) {
+                      upb_sink sink, bool force_default) {
   upb_sink subsink;
 
   if (len == 0 && !force_default) return;
@@ -1593,11 +1537,11 @@ static void putrawstr(const char* str, int len, const upb_fielddef* f,
   }
 
   upb_sink_startstr(sink, getsel(f, UPB_HANDLER_STARTSTR), len, &subsink);
-  upb_sink_putstring(&subsink, getsel(f, UPB_HANDLER_STRING), str, len, NULL);
+  upb_sink_putstring(subsink, getsel(f, UPB_HANDLER_STRING), str, len, NULL);
   upb_sink_endstr(sink, getsel(f, UPB_HANDLER_ENDSTR));
 }
 
-static void putsubmsg(zval* submsg_php, const upb_fielddef* f, upb_sink* sink,
+static void putsubmsg(zval* submsg_php, const upb_fielddef* f, upb_sink sink,
                       int depth, bool is_json TSRMLS_DC) {
   if (Z_TYPE_P(submsg_php) == IS_NULL) return;
 
@@ -1606,18 +1550,18 @@ static void putsubmsg(zval* submsg_php, const upb_fielddef* f, upb_sink* sink,
 }
 
 static void putrawsubmsg(MessageHeader* submsg, const upb_fielddef* f,
-                         upb_sink* sink, int depth, bool is_json TSRMLS_DC) {
+                         upb_sink sink, int depth, bool is_json TSRMLS_DC) {
   upb_sink subsink;
 
   Descriptor* subdesc =
       UNBOX_HASHTABLE_VALUE(Descriptor, get_def_obj(upb_fielddef_msgsubdef(f)));
 
   upb_sink_startsubmsg(sink, getsel(f, UPB_HANDLER_STARTSUBMSG), &subsink);
-  putrawmsg(submsg, subdesc, &subsink, depth + 1, is_json, true TSRMLS_CC);
+  putrawmsg(submsg, subdesc, subsink, depth + 1, is_json, true TSRMLS_CC);
   upb_sink_endsubmsg(sink, getsel(f, UPB_HANDLER_ENDSUBMSG));
 }
 
-static void putarray(zval* array, const upb_fielddef* f, upb_sink* sink,
+static void putarray(zval* array, const upb_fielddef* f, upb_sink sink,
                      int depth, bool is_json TSRMLS_DC) {
   upb_sink subsink;
   upb_fieldtype_t type = upb_fielddef_type(f);
@@ -1641,7 +1585,7 @@ static void putarray(zval* array, const upb_fielddef* f, upb_sink* sink,
     switch (type) {
 #define T(upbtypeconst, upbtype, ctype)                      \
   case upbtypeconst:                                         \
-    upb_sink_put##upbtype(&subsink, sel, *((ctype*)memory)); \
+    upb_sink_put##upbtype(subsink, sel, *((ctype*)memory)); \
     break;
 
       T(UPB_TYPE_FLOAT, float, float)
@@ -1662,7 +1606,7 @@ static void putarray(zval* array, const upb_fielddef* f, upb_sink* sink,
         const char* rawstr = ZSTR_VAL(*(zend_string**)memory);
         int len = ZSTR_LEN(*(zend_string**)memory);
 #endif
-        putrawstr(rawstr, len, f, &subsink,
+        putrawstr(rawstr, len, f, subsink,
                   is_json && is_wrapper_msg(upb_fielddef_containingtype(f)));
         break;
       }
@@ -1674,7 +1618,7 @@ static void putarray(zval* array, const upb_fielddef* f, upb_sink* sink,
             (MessageHeader*)((char*)(Z_OBJ_P((zval*)memory)) -
                 XtOffsetOf(MessageHeader, std));
 #endif
-        putrawsubmsg(submsg, f, &subsink, depth, is_json TSRMLS_CC);
+        putrawsubmsg(submsg, f, subsink, depth, is_json TSRMLS_CC);
         break;
       }
 
@@ -1685,29 +1629,18 @@ static void putarray(zval* array, const upb_fielddef* f, upb_sink* sink,
 }
 
 static const upb_handlers* msgdef_pb_serialize_handlers(Descriptor* desc) {
-  if (desc->pb_serialize_handlers == NULL) {
-    desc->pb_serialize_handlers =
-        upb_pb_encoder_newhandlers(desc->msgdef, &desc->pb_serialize_handlers);
-  }
-  return desc->pb_serialize_handlers;
+  return upb_handlercache_get(desc->pool->pb_serialize_handler_cache,
+                              desc->msgdef);
 }
 
 static const upb_handlers* msgdef_json_serialize_handlers(
     Descriptor* desc, bool preserve_proto_fieldnames) {
   if (preserve_proto_fieldnames) {
-    if (desc->json_serialize_handlers == NULL) {
-      desc->json_serialize_handlers =
-          upb_json_printer_newhandlers(
-              desc->msgdef, true, &desc->json_serialize_handlers);
-    }
-    return desc->json_serialize_handlers;
+    return upb_handlercache_get(
+        desc->pool->json_serialize_handler_preserve_cache, desc->msgdef);
   } else {
-    if (desc->json_serialize_handlers_preserve == NULL) {
-      desc->json_serialize_handlers_preserve =
-          upb_json_printer_newhandlers(
-              desc->msgdef, false, &desc->json_serialize_handlers_preserve);
-    }
-    return desc->json_serialize_handlers_preserve;
+    return upb_handlercache_get(desc->pool->json_serialize_handler_cache,
+                                desc->msgdef);
   }
 }
 
@@ -1729,7 +1662,7 @@ void serialize_to_string(zval* val, zval* return_value TSRMLS_DC) {
     upb_pb_encoder* encoder;
 
     stackenv_init(&se, "Error occurred during encoding: %s");
-    encoder = upb_pb_encoder_create(&se.env, serialize_handlers, &sink.sink);
+    encoder = upb_pb_encoder_create(se.arena, serialize_handlers, sink.sink);
 
     putmsg(val, desc, upb_pb_encoder_input(encoder), 0, false TSRMLS_CC);
 
@@ -1754,7 +1687,7 @@ void merge_from_string(const char* data, int data_len, Descriptor* desc,
   stackenv_init(&se, "Error occurred during parsing: %s");
 
   upb_sink_reset(&sink, h, msg);
-  decoder = upb_pbdecoder_create(&se.env, method, &sink);
+  decoder = upb_pbdecoder_create(se.arena, method, sink, &se.status);
   upb_bufsrc_putbuf(data, data_len, upb_pbdecoder_input(decoder));
 
   stackenv_uninit(&se);
@@ -1796,7 +1729,7 @@ PHP_METHOD(Message, serializeToJsonString) {
     stackenv se;
 
     stackenv_init(&se, "Error occurred during encoding: %s");
-    printer = upb_json_printer_create(&se.env, serialize_handlers, &sink.sink);
+    printer = upb_json_printer_create(se.arena, serialize_handlers, sink.sink);
 
     putmsg(getThis(), desc, upb_json_printer_input(printer), 0, true TSRMLS_CC);
 
@@ -1837,8 +1770,8 @@ PHP_METHOD(Message, mergeFromJsonString) {
     stackenv_init(&se, "Error occurred during parsing: %s");
 
     upb_sink_reset(&sink, get_fill_handlers(desc), msg);
-    parser = upb_json_parser_create(&se.env, method, generated_pool->symtab,
-                                    &sink, ignore_json_unknown);
+    parser = upb_json_parser_create(se.arena, method, generated_pool->symtab,
+                                    sink, &se.status, ignore_json_unknown);
     upb_bufsrc_putbuf(data, data_len, upb_json_parser_input(parser));
 
     stackenv_uninit(&se);

php/ext/google/protobuf/message.c

@@ -494,7 +494,7 @@ void Message_construct(zval* msg, zval* array_wrapper) {
       ZVAL_OBJ(submsg, desc->klass->create_object(desc->klass TSRMLS_CC));
       Message_construct(submsg, NULL);
       MessageHeader* to = UNBOX(MessageHeader, submsg);
-      const upb_filedef *file = upb_def_file(upb_msgdef_upcast(submsgdef));
+      const upb_filedef *file = upb_msgdef_file(submsgdef);
       if (!strcmp(upb_filedef_name(file), "google/protobuf/wrappers.proto") &&
           Z_TYPE_P(CACHED_PTR_TO_ZVAL_PTR((CACHED_VALUE*)value)) != IS_OBJECT) {
         const upb_fielddef *value_field = upb_msgdef_itof(submsgdef, 1);

php/ext/google/protobuf/protobuf.h

@@ -763,7 +763,12 @@ PHP_METHOD(DescriptorPool, getEnumDescriptorByClassName);
 
 PHP_PROTO_WRAP_OBJECT_START(InternalDescriptorPool)
   upb_symtab* symtab;
-  HashTable* pending_list;
+  upb_handlercache* fill_handler_cache;
+  upb_handlercache* pb_serialize_handler_cache;
+  upb_handlercache* json_serialize_handler_cache;
+  upb_handlercache* json_serialize_handler_preserve_cache;
+  upb_pbcodecache* fill_method_cache;
+  upb_json_codecache* json_fill_method_cache;
 PHP_PROTO_WRAP_OBJECT_END
 
 PHP_METHOD(InternalDescriptorPool, getGeneratedPool);
@@ -773,6 +778,7 @@ void internal_add_generated_file(const char* data, PHP_PROTO_SIZE data_len,
                                  InternalDescriptorPool* pool,
                                  bool use_nested_submsg TSRMLS_DC);
 void init_generated_pool_once(TSRMLS_D);
+void add_handlers_for_message(const void* closure, upb_handlers* h);
 
 // wrapper of generated pool
 #if PHP_MAJOR_VERSION < 7
@@ -789,15 +795,10 @@ void internal_descriptor_pool_free(zend_object* object);
 extern InternalDescriptorPool* generated_pool;  // The actual generated pool
 
 PHP_PROTO_WRAP_OBJECT_START(Descriptor)
+  InternalDescriptorPool* pool;
   const upb_msgdef* msgdef;
   MessageLayout* layout;
   zend_class_entry* klass;  // begins as NULL
-  const upb_handlers* fill_handlers;
-  const upb_pbdecodermethod* fill_method;
-  const upb_json_parsermethod* json_fill_method;
-  const upb_handlers* pb_serialize_handlers;
-  const upb_handlers* json_serialize_handlers;
-  const upb_handlers* json_serialize_handlers_preserve;
 PHP_PROTO_WRAP_OBJECT_END
 
 PHP_METHOD(Descriptor, getClass);
@@ -1168,7 +1169,7 @@ PHP_METHOD(RepeatedFieldIter, valid);
 // -----------------------------------------------------------------------------
 
 PHP_PROTO_WRAP_OBJECT_START(Oneof)
-  upb_oneofdef* oneofdef;
+  const upb_oneofdef* oneofdef;
   int index;    // Index of field in oneof. -1 if not set.
   char value[NATIVE_SLOT_MAX_SIZE];
 PHP_PROTO_WRAP_OBJECT_END

php/ext/google/protobuf/storage.c

@@ -553,11 +553,11 @@ const zend_class_entry* field_type_class(
     const upb_fielddef* field PHP_PROTO_TSRMLS_DC) {
   if (upb_fielddef_type(field) == UPB_TYPE_MESSAGE) {
     Descriptor* desc = UNBOX_HASHTABLE_VALUE(
-        Descriptor, get_def_obj(upb_fielddef_subdef(field)));
+        Descriptor, get_def_obj(upb_fielddef_msgsubdef(field)));
     return desc->klass;
   } else if (upb_fielddef_type(field) == UPB_TYPE_ENUM) {
     EnumDescriptor* desc = UNBOX_HASHTABLE_VALUE(
-        EnumDescriptor, get_def_obj(upb_fielddef_subdef(field)));
+        EnumDescriptor, get_def_obj(upb_fielddef_enumsubdef(field)));
     return desc->klass;
   }
   return NULL;
@@ -742,16 +742,13 @@ MessageLayout* create_layout(const upb_msgdef* msgdef) {
   }
 
   layout->size = off;
-
   layout->msgdef = msgdef;
-  upb_msgdef_ref(layout->msgdef, &layout->msgdef);
 
   return layout;
 }
 
 void free_layout(MessageLayout* layout) {
   FREE(layout->fields);
-  upb_msgdef_unref(layout->msgdef, &layout->msgdef);
   FREE(layout);
 }
 

tests.sh

@@ -18,12 +18,12 @@ internal_build_cpp() {
   ./autogen.sh
   ./configure CXXFLAGS="-fPIC -std=c++11"  # -fPIC is needed for python cpp test.
                                            # See python/setup.py for more details
-  make -j4
+  make -j$(nproc)
 }
 
 build_cpp() {
   internal_build_cpp
-  make check -j4 || (cat src/test-suite.log; false)
+  make check -j$(nproc) || (cat src/test-suite.log; false)
   cd conformance && make test_cpp && cd ..
 
   # The benchmark code depends on cmake, so test if it is installed before
@@ -77,7 +77,7 @@ build_cpp_distcheck() {
   fi
 
   # Do the regular dist-check for C++.
-  make distcheck -j4
+  make distcheck -j$(nproc)
 }
 
 build_csharp() {