1 files changed, 46 insertions, 46 deletions

diff --git a/src/core/lib/transport/service_config.cc b/src/core/lib/transport/service_config.cc
index 05907de7d7..adcec8c444 100644
--- a/src/core/lib/transport/service_config.cc
+++ b/src/core/lib/transport/service_config.cc
@@ -64,11 +64,11 @@ grpc_service_config* grpc_service_config_create(const char* json_string) {
   service_config->json_string = gpr_strdup(json_string);
   service_config->json_tree =
       grpc_json_parse_string(service_config->json_string);
-  if (service_config->json_tree == NULL) {
+  if (service_config->json_tree == nullptr) {
     gpr_log(GPR_INFO, "failed to parse JSON for service config");
     gpr_free(service_config->json_string);
     gpr_free(service_config);
-    return NULL;
+    return nullptr;
   }
   return service_config;
 }
@@ -83,9 +83,9 @@ void grpc_service_config_parse_global_params(
     const grpc_service_config* service_config,
     void (*process_json)(const grpc_json* json, void* arg), void* arg) {
   const grpc_json* json = service_config->json_tree;
-  if (json->type != GRPC_JSON_OBJECT || json->key != NULL) return;
-  for (grpc_json* field = json->child; field != NULL; field = field->next) {
-    if (field->key == NULL) return;
+  if (json->type != GRPC_JSON_OBJECT || json->key != nullptr) return;
+  for (grpc_json* field = json->child; field != nullptr; field = field->next) {
+    if (field->key == nullptr) return;
     if (strcmp(field->key, "methodConfig") == 0) continue;
     process_json(field, arg);
   }
@@ -94,13 +94,13 @@ void grpc_service_config_parse_global_params(
 const char* grpc_service_config_get_lb_policy_name(
     const grpc_service_config* service_config) {
   const grpc_json* json = service_config->json_tree;
-  if (json->type != GRPC_JSON_OBJECT || json->key != NULL) return NULL;
-  const char* lb_policy_name = NULL;
-  for (grpc_json* field = json->child; field != NULL; field = field->next) {
-    if (field->key == NULL) return NULL;
+  if (json->type != GRPC_JSON_OBJECT || json->key != nullptr) return nullptr;
+  const char* lb_policy_name = nullptr;
+  for (grpc_json* field = json->child; field != nullptr; field = field->next) {
+    if (field->key == nullptr) return nullptr;
     if (strcmp(field->key, "loadBalancingPolicy") == 0) {
-      if (lb_policy_name != NULL) return NULL;  // Duplicate.
-      if (field->type != GRPC_JSON_STRING) return NULL;
+      if (lb_policy_name != nullptr) return nullptr;  // Duplicate.
+      if (field->type != GRPC_JSON_STRING) return nullptr;
       lb_policy_name = field->value;
     }
   }
@@ -110,10 +110,10 @@ const char* grpc_service_config_get_lb_policy_name(
 // Returns the number of names specified in the method config \a json.
 static size_t count_names_in_method_config_json(grpc_json* json) {
   size_t num_names = 0;
-  for (grpc_json* field = json->child; field != NULL; field = field->next) {
-    if (field->key != NULL && strcmp(field->key, "name") == 0) {
+  for (grpc_json* field = json->child; field != nullptr; field = field->next) {
+    if (field->key != nullptr && strcmp(field->key, "name") == 0) {
       if (field->type != GRPC_JSON_ARRAY) return -1;
-      for (grpc_json* name = field->child; name != NULL; name = name->next) {
+      for (grpc_json* name = field->child; name != nullptr; name = name->next) {
         if (name->type != GRPC_JSON_OBJECT) return -1;
         ++num_names;
       }
@@ -125,26 +125,26 @@ static size_t count_names_in_method_config_json(grpc_json* json) {
 // Returns a path string for the JSON name object specified by \a json.
 // Returns NULL on error.  Caller takes ownership of result.
 static char* parse_json_method_name(grpc_json* json) {
-  if (json->type != GRPC_JSON_OBJECT) return NULL;
-  const char* service_name = NULL;
-  const char* method_name = NULL;
-  for (grpc_json* child = json->child; child != NULL; child = child->next) {
-    if (child->key == NULL) return NULL;
-    if (child->type != GRPC_JSON_STRING) return NULL;
+  if (json->type != GRPC_JSON_OBJECT) return nullptr;
+  const char* service_name = nullptr;
+  const char* method_name = nullptr;
+  for (grpc_json* child = json->child; child != nullptr; child = child->next) {
+    if (child->key == nullptr) return nullptr;
+    if (child->type != GRPC_JSON_STRING) return nullptr;
     if (strcmp(child->key, "service") == 0) {
-      if (service_name != NULL) return NULL;  // Duplicate.
-      if (child->value == NULL) return NULL;
+      if (service_name != nullptr) return nullptr;  // Duplicate.
+      if (child->value == nullptr) return nullptr;
       service_name = child->value;
     } else if (strcmp(child->key, "method") == 0) {
-      if (method_name != NULL) return NULL;  // Duplicate.
-      if (child->value == NULL) return NULL;
+      if (method_name != nullptr) return nullptr;  // Duplicate.
+      if (child->value == nullptr) return nullptr;
       method_name = child->value;
     }
   }
-  if (service_name == NULL) return NULL;  // Required field.
+  if (service_name == nullptr) return nullptr;  // Required field.
   char* path;
   gpr_asprintf(&path, "/%s/%s", service_name,
-               method_name == NULL ? "*" : method_name);
+               method_name == nullptr ? "*" : method_name);
   return path;
 }
 
@@ -159,18 +159,18 @@ static bool parse_json_method_config(
     grpc_slice_hash_table_entry* entries, size_t* idx) {
   // Construct value.
   void* method_config = create_value(json);
-  if (method_config == NULL) return false;
+  if (method_config == nullptr) return false;
   // Construct list of paths.
   bool success = false;
   gpr_strvec paths;
   gpr_strvec_init(&paths);
-  for (grpc_json* child = json->child; child != NULL; child = child->next) {
-    if (child->key == NULL) continue;
+  for (grpc_json* child = json->child; child != nullptr; child = child->next) {
+    if (child->key == nullptr) continue;
     if (strcmp(child->key, "name") == 0) {
       if (child->type != GRPC_JSON_ARRAY) goto done;
-      for (grpc_json* name = child->child; name != NULL; name = name->next) {
+      for (grpc_json* name = child->child; name != nullptr; name = name->next) {
         char* path = parse_json_method_name(name);
-        if (path == NULL) goto done;
+        if (path == nullptr) goto done;
         gpr_strvec_add(&paths, path);
       }
     }
@@ -196,26 +196,26 @@ grpc_slice_hash_table* grpc_service_config_create_method_config_table(
     void (*unref_value)(grpc_exec_ctx* exec_ctx, void* value)) {
   const grpc_json* json = service_config->json_tree;
   // Traverse parsed JSON tree.
-  if (json->type != GRPC_JSON_OBJECT || json->key != NULL) return NULL;
+  if (json->type != GRPC_JSON_OBJECT || json->key != nullptr) return nullptr;
   size_t num_entries = 0;
-  grpc_slice_hash_table_entry* entries = NULL;
-  for (grpc_json* field = json->child; field != NULL; field = field->next) {
-    if (field->key == NULL) return NULL;
+  grpc_slice_hash_table_entry* entries = nullptr;
+  for (grpc_json* field = json->child; field != nullptr; field = field->next) {
+    if (field->key == nullptr) return nullptr;
     if (strcmp(field->key, "methodConfig") == 0) {
-      if (entries != NULL) return NULL;  // Duplicate.
-      if (field->type != GRPC_JSON_ARRAY) return NULL;
+      if (entries != nullptr) return nullptr;  // Duplicate.
+      if (field->type != GRPC_JSON_ARRAY) return nullptr;
       // Find number of entries.
-      for (grpc_json* method = field->child; method != NULL;
+      for (grpc_json* method = field->child; method != nullptr;
            method = method->next) {
         size_t count = count_names_in_method_config_json(method);
-        if (count <= 0) return NULL;
+        if (count <= 0) return nullptr;
         num_entries += count;
       }
       // Populate method config table entries.
       entries = (grpc_slice_hash_table_entry*)gpr_malloc(
           num_entries * sizeof(grpc_slice_hash_table_entry));
       size_t idx = 0;
-      for (grpc_json* method = field->child; method != NULL;
+      for (grpc_json* method = field->child; method != nullptr;
            method = method->next) {
         if (!parse_json_method_config(exec_ctx, method, create_value, ref_value,
                                       unref_value, entries, &idx)) {
@@ -224,17 +224,17 @@ grpc_slice_hash_table* grpc_service_config_create_method_config_table(
             unref_value(exec_ctx, entries[i].value);
           }
           gpr_free(entries);
-          return NULL;
+          return nullptr;
         }
       }
       GPR_ASSERT(idx == num_entries);
     }
   }
   // Instantiate method config table.
-  grpc_slice_hash_table* method_config_table = NULL;
-  if (entries != NULL) {
-    method_config_table =
-        grpc_slice_hash_table_create(num_entries, entries, unref_value, NULL);
+  grpc_slice_hash_table* method_config_table = nullptr;
+  if (entries != nullptr) {
+    method_config_table = grpc_slice_hash_table_create(num_entries, entries,
+                                                       unref_value, nullptr);
     gpr_free(entries);
   }
   return method_config_table;
@@ -246,7 +246,7 @@ void* grpc_method_config_table_get(grpc_exec_ctx* exec_ctx,
   void* value = grpc_slice_hash_table_get(table, path);
   // If we didn't find a match for the path, try looking for a wildcard
   // entry (i.e., change "/service/method" to "/service/*").
-  if (value == NULL) {
+  if (value == nullptr) {
     char* path_str = grpc_slice_to_c_string(path);
     const char* sep = strrchr(path_str, '/') + 1;
     const size_t len = (size_t)(sep - path_str);