VM: Re-format to use at most one newline between functions

runtime/bin/extensions.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/extensions.h"
 
 #include <stdio.h>
 
 #include "bin/dartutils.h"
 #include "bin/file.h"
 #include "bin/platform.h"
 #include "bin/utils.h"
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/globals.h"
 
 namespace dart {
 namespace bin {
 
 static char PathSeparator() {
   const char* sep = File::PathSeparator();
   ASSERT(strlen(sep) == 1);
   return sep[0];
 }
 
-
 void* Extensions::MakePathAndResolve(const char* dir, const char* name) {
   // First try to find the library with a suffix specifying the architecture.
   {
     const char* path_components[] = {
         dir,
         Platform::LibraryPrefix(),
         name,
         "-",
         Platform::HostArchitecture(),  // arm
         ".",
@@ skipping 15 matching lines @@
         name,
         ".",
         Platform::LibraryExtension(),  // so
         NULL,
     };
     const char* library_file = Concatenate(path_components);
     return LoadExtensionLibrary(library_file);
   }
 }
 
-
 // IMPORTANT: In the absolute path case, do not extract the filename and search
 // for that by passing it to LoadLibrary. That can lead to confusion in
 // which the absolute path is wrong, and a different version of the library is
 // loaded from the standard location.
 void* Extensions::ResolveAbsPathExtension(const char* extension_path) {
   const char* last_slash = strrchr(extension_path, PathSeparator()) + 1;
   char* name = strdup(last_slash);
   char* dir = StringUtils::StrNDup(extension_path, last_slash - extension_path);
   void* library_handle = MakePathAndResolve(dir, name);
   free(dir);
   free(name);
   return library_handle;
 }
 
-
 void* Extensions::ResolveExtension(const char* extension_directory,
                                    const char* extension_name) {
   // If the path following dart-ext is an absolute path, then only look for the
   // library there.
   if (File::IsAbsolutePath(extension_name)) {
     return ResolveAbsPathExtension(extension_name);
   }
 
   // If the path following dart-ext is just a file name, first look next to
   // the importing Dart library.
   void* library_handle =
       MakePathAndResolve(extension_directory, extension_name);
   if (library_handle != NULL) {
     return library_handle;
   }
 
   // Then pass the library name down to the platform. E.g. dlopen will do its
   // own search in standard search locations.
   return MakePathAndResolve("", extension_name);
 }
 
-
 Dart_Handle Extensions::LoadExtension(const char* extension_directory,
                                       const char* extension_name,
                                       Dart_Handle parent_library) {
   void* library_handle = ResolveExtension(extension_directory, extension_name);
   if (library_handle == NULL) {
     return GetError();
   }
 
   const char* extension = extension_name;
   if (File::IsAbsolutePath(extension_name)) {
     extension = strrchr(extension_name, PathSeparator()) + 1;
   }
 
   const char* strings[] = {extension, "_Init", NULL};
   const char* init_function_name = Concatenate(strings);
   void* init_function = ResolveSymbol(library_handle, init_function_name);
   Dart_Handle result = GetError();
   if (Dart_IsError(result)) {
     return result;
   }
   ASSERT(init_function != NULL);
   typedef Dart_Handle (*InitFunctionType)(Dart_Handle import_map);
   InitFunctionType fn = reinterpret_cast<InitFunctionType>(init_function);
   return (*fn)(parent_library);
 }
 
-
 // Concatenates a NULL terminated array of strings.
 // The returned string is scope allocated.
 const char* Extensions::Concatenate(const char** strings) {
   int size = 1;  // null termination.
   for (int i = 0; strings[i] != NULL; i++) {
     size += strlen(strings[i]);
   }
   char* result = reinterpret_cast<char*>(Dart_ScopeAllocate(size));
   int index = 0;
   for (int i = 0; strings[i] != NULL; i++) {
     index += snprintf(result + index, size - index, "%s", strings[i]);
   }
   ASSERT(index == size - 1);
   ASSERT(result[size - 1] == '\0');
   return result;
 }
 
 }  // namespace bin
 }  // namespace dart