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

runtime/bin/dartutils.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/dartutils.h"
 
 #include "bin/crypto.h"
 #include "bin/directory.h"
 #include "bin/extensions.h"
 #include "bin/file.h"
@@ skipping 29 matching lines @@
 const char* const DartUtils::kBuiltinLibURL = "dart:_builtin";
 const char* const DartUtils::kCoreLibURL = "dart:core";
 const char* const DartUtils::kInternalLibURL = "dart:_internal";
 const char* const DartUtils::kIsolateLibURL = "dart:isolate";
 const char* const DartUtils::kIOLibURL = "dart:io";
 const char* const DartUtils::kIOLibPatchURL = "dart:io-patch";
 const char* const DartUtils::kUriLibURL = "dart:uri";
 const char* const DartUtils::kHttpScheme = "http:";
 const char* const DartUtils::kVMServiceLibURL = "dart:vmservice";
 
-
 struct MagicNumberData {
   static const intptr_t kLength = 4;
 
   const uint8_t bytes[kLength];
   bool should_skip;
 };
 
-
 MagicNumberData snapshot_magic_number = {{0xf5, 0xf5, 0xdc, 0xdc}, true};
 MagicNumberData kernel_magic_number = {{0x90, 0xab, 0xcd, 0xef}, false};
 
-
 static bool IsWindowsHost() {
 #if defined(HOST_OS_WINDOWS)
   return true;
 #else   // defined(HOST_OS_WINDOWS)
   return false;
 #endif  // defined(HOST_OS_WINDOWS)
 }
 
-
 const char* DartUtils::MapLibraryUrl(const char* url_string) {
   ASSERT(url_mapping != NULL);
   // We need to check if the passed in url is found in the url_mapping array,
   // in that case use the mapped entry.
   intptr_t len = strlen(url_string);
   for (intptr_t idx = 0; idx < url_mapping->count(); idx++) {
     const char* url_name = url_mapping->GetArgument(idx);
     if (!strncmp(url_string, url_name, len) && (url_name[len] == ',')) {
       const char* url_mapped_name = url_name + len + 1;
       if (strlen(url_mapped_name) != 0) {
         return url_mapped_name;  // Found a mapping for this URL.
       }
     }
   }
   return NULL;  // Did not find a mapping for this URL.
 }
 
-
 int64_t DartUtils::GetIntegerValue(Dart_Handle value_obj) {
   int64_t value = 0;
   Dart_Handle result = Dart_IntegerToInt64(value_obj, &value);
   if (Dart_IsError(result)) Dart_PropagateError(result);
   return value;
 }
 
-
 int64_t DartUtils::GetInt64ValueCheckRange(Dart_Handle value_obj,
                                            int64_t lower,
                                            int64_t upper) {
   int64_t value = DartUtils::GetIntegerValue(value_obj);
   if (value < lower || upper < value) {
     Dart_PropagateError(Dart_NewApiError("Value outside expected range"));
   }
   return value;
 }
 
-
 intptr_t DartUtils::GetIntptrValue(Dart_Handle value_obj) {
   int64_t value = 0;
   Dart_Handle result = Dart_IntegerToInt64(value_obj, &value);
   if (Dart_IsError(result)) Dart_PropagateError(result);
   if (value < kIntptrMin || kIntptrMax < value) {
     Dart_PropagateError(Dart_NewApiError("Value outside intptr_t range"));
   }
   return static_cast<intptr_t>(value);
 }
 
-
 bool DartUtils::GetInt64Value(Dart_Handle value_obj, int64_t* value) {
   bool valid = Dart_IsInteger(value_obj);
   if (valid) {
     Dart_Handle result = Dart_IntegerFitsIntoInt64(value_obj, &valid);
     if (Dart_IsError(result)) Dart_PropagateError(result);
   }
   if (!valid) return false;
   Dart_Handle result = Dart_IntegerToInt64(value_obj, value);
   if (Dart_IsError(result)) Dart_PropagateError(result);
   return true;
 }
 
-
 const char* DartUtils::GetStringValue(Dart_Handle str_obj) {
   const char* cstring = NULL;
   Dart_Handle result = Dart_StringToCString(str_obj, &cstring);
   if (Dart_IsError(result)) Dart_PropagateError(result);
   return cstring;
 }
 
-
 bool DartUtils::GetBooleanValue(Dart_Handle bool_obj) {
   bool value = false;
   Dart_Handle result = Dart_BooleanValue(bool_obj, &value);
   if (Dart_IsError(result)) Dart_PropagateError(result);
   return value;
 }
 
-
 Dart_Handle DartUtils::SetIntegerField(Dart_Handle handle,
                                        const char* name,
                                        int64_t val) {
   return Dart_SetField(handle, NewString(name), Dart_NewInteger(val));
 }
 
-
 Dart_Handle DartUtils::SetStringField(Dart_Handle handle,
                                       const char* name,
                                       const char* val) {
   return Dart_SetField(handle, NewString(name), NewString(val));
 }
 
-
 bool DartUtils::IsDartSchemeURL(const char* url_name) {
   static const intptr_t kDartSchemeLen = strlen(kDartScheme);
   // If the URL starts with "dart:" then it is considered as a special
   // library URL which is handled differently from other URLs.
   return (strncmp(url_name, kDartScheme, kDartSchemeLen) == 0);
 }
 
-
 bool DartUtils::IsHttpSchemeURL(const char* url_name) {
   static const intptr_t kHttpSchemeLen = strlen(kHttpScheme);
   return (strncmp(url_name, kHttpScheme, kHttpSchemeLen) == 0);
 }
 
-
 bool DartUtils::IsDartExtensionSchemeURL(const char* url_name) {
   static const intptr_t kDartExtensionSchemeLen = strlen(kDartExtensionScheme);
   // If the URL starts with "dartext:" then it is considered as a special
   // extension library URL which is handled differently from other URLs.
   return (strncmp(url_name, kDartExtensionScheme, kDartExtensionSchemeLen) ==
           0);
 }
 
-
 bool DartUtils::IsDartIOLibURL(const char* url_name) {
   return (strcmp(url_name, kIOLibURL) == 0);
 }
 
-
 bool DartUtils::IsDartBuiltinLibURL(const char* url_name) {
   return (strcmp(url_name, kBuiltinLibURL) == 0);
 }
 
-
 const char* DartUtils::RemoveScheme(const char* url) {
   const char* colon = strchr(url, ':');
   if (colon == NULL) {
     return url;
   } else {
     return colon + 1;
   }
 }
 
-
 char* DartUtils::DirName(const char* url) {
   const char* slash = strrchr(url, File::PathSeparator()[0]);
   if (slash == NULL) {
     return strdup(url);
   } else {
     return StringUtils::StrNDup(url, slash - url + 1);
   }
 }
 
-
 void* DartUtils::OpenFile(const char* name, bool write) {
   File* file = File::Open(name, write ? File::kWriteTruncate : File::kRead);
   return reinterpret_cast<void*>(file);
 }
 
-
 void DartUtils::ReadFile(const uint8_t** data, intptr_t* len, void* stream) {
   ASSERT(data != NULL);
   ASSERT(len != NULL);
   ASSERT(stream != NULL);
   File* file_stream = reinterpret_cast<File*>(stream);
   int64_t file_len = file_stream->Length();
   if ((file_len < 0) || (file_len > kIntptrMax)) {
     *data = NULL;
     *len = -1;  // Indicates read was not successful.
     return;
   }
   *len = static_cast<intptr_t>(file_len);
   uint8_t* text_buffer = reinterpret_cast<uint8_t*>(malloc(*len));
   ASSERT(text_buffer != NULL);
   if (!file_stream->ReadFully(text_buffer, *len)) {
     *data = NULL;
     *len = -1;  // Indicates read was not successful.
     return;
   }
   *data = text_buffer;
 }
 
-
 void DartUtils::WriteFile(const void* buffer,
                           intptr_t num_bytes,
                           void* stream) {
   ASSERT(stream != NULL);
   File* file_stream = reinterpret_cast<File*>(stream);
   bool bytes_written = file_stream->WriteFully(buffer, num_bytes);
   ASSERT(bytes_written);
 }
 
-
 void DartUtils::CloseFile(void* stream) {
   File* file = reinterpret_cast<File*>(stream);
   file->Release();
 }
 
-
 bool DartUtils::EntropySource(uint8_t* buffer, intptr_t length) {
   return Crypto::GetRandomBytes(length, buffer);
 }
 
-
 static Dart_Handle SingleArgDart_Invoke(Dart_Handle lib,
                                         const char* method,
                                         Dart_Handle arg) {
   const int kNumArgs = 1;
   Dart_Handle dart_args[kNumArgs];
   dart_args[0] = arg;
   return Dart_Invoke(lib, DartUtils::NewString(method), kNumArgs, dart_args);
 }
 
-
 // TODO(iposva): Allocate from the zone instead of leaking error string
 // here. On the other hand the binary is about to exit anyway.
 #define SET_ERROR_MSG(error_msg, format, ...)                                  \
   intptr_t len = snprintf(NULL, 0, format, __VA_ARGS__);                       \
   char* msg = reinterpret_cast<char*>(malloc(len + 1));                        \
   snprintf(msg, len + 1, format, __VA_ARGS__);                                 \
   *error_msg = msg
 
-
 static const uint8_t* ReadFileFully(const char* filename,
                                     intptr_t* file_len,
                                     const char** error_msg) {
   *file_len = -1;
   void* stream = DartUtils::OpenFile(filename, false);
   if (stream == NULL) {
     SET_ERROR_MSG(error_msg, "Unable to open file: %s", filename);
     return NULL;
   }
   const uint8_t* text_buffer = NULL;
   DartUtils::ReadFile(&text_buffer, file_len, stream);
   if (text_buffer == NULL || *file_len == -1) {
     *error_msg = "Unable to read file contents";
     text_buffer = NULL;
   }
   DartUtils::CloseFile(stream);
   return text_buffer;
 }
 
-
 Dart_Handle DartUtils::ReadStringFromFile(const char* filename) {
   const char* error_msg = NULL;
   intptr_t len;
   const uint8_t* text_buffer = ReadFileFully(filename, &len, &error_msg);
   if (text_buffer == NULL) {
     return Dart_NewApiError(error_msg);
   }
   Dart_Handle str = Dart_NewStringFromUTF8(text_buffer, len);
   free(const_cast<uint8_t*>(text_buffer));
   return str;
 }
 
-
 Dart_Handle DartUtils::MakeUint8Array(const uint8_t* buffer, intptr_t len) {
   Dart_Handle array = Dart_NewTypedData(Dart_TypedData_kUint8, len);
   RETURN_IF_ERROR(array);
   {
     Dart_TypedData_Type td_type;
     void* td_data;
     intptr_t td_len;
     Dart_Handle result =
         Dart_TypedDataAcquireData(array, &td_type, &td_data, &td_len);
     RETURN_IF_ERROR(result);
     ASSERT(td_type == Dart_TypedData_kUint8);
     ASSERT(td_len == len);
     ASSERT(td_data != NULL);
     memmove(td_data, buffer, td_len);
     result = Dart_TypedDataReleaseData(array);
     RETURN_IF_ERROR(result);
   }
   return array;
 }
 
-
 Dart_Handle DartUtils::SetWorkingDirectory() {
   IsolateData* isolate_data =
       reinterpret_cast<IsolateData*>(Dart_CurrentIsolateData());
   Dart_Handle builtin_lib = isolate_data->builtin_lib();
   Dart_Handle directory = NewString(original_working_directory);
   return SingleArgDart_Invoke(builtin_lib, "_setWorkingDirectory", directory);
 }
 
-
 Dart_Handle DartUtils::ResolveUriInWorkingDirectory(Dart_Handle script_uri) {
   const int kNumArgs = 1;
   Dart_Handle dart_args[kNumArgs];
   dart_args[0] = script_uri;
   return Dart_Invoke(DartUtils::BuiltinLib(),
                      NewString("_resolveInWorkingDirectory"), kNumArgs,
                      dart_args);
 }
 
-
 Dart_Handle DartUtils::LibraryFilePath(Dart_Handle library_uri) {
   const int kNumArgs = 1;
   Dart_Handle dart_args[kNumArgs];
   dart_args[0] = library_uri;
   return Dart_Invoke(DartUtils::BuiltinLib(), NewString("_libraryFilePath"),
                      kNumArgs, dart_args);
 }
 
-
 Dart_Handle DartUtils::ResolveScript(Dart_Handle url) {
   const int kNumArgs = 1;
   Dart_Handle dart_args[kNumArgs];
   dart_args[0] = url;
   return Dart_Invoke(DartUtils::BuiltinLib(), NewString("_resolveScriptUri"),
                      kNumArgs, dart_args);
 }
 
-
 static Dart_Handle LoadDataAsync_Invoke(Dart_Handle tag,
                                         Dart_Handle url,
                                         Dart_Handle library_url) {
   const int kNumArgs = 3;
   Dart_Handle dart_args[kNumArgs];
   dart_args[0] = tag;
   dart_args[1] = url;
   dart_args[2] = library_url;
   return Dart_Invoke(DartUtils::BuiltinLib(),
                      DartUtils::NewString("_loadDataAsync"), kNumArgs,
                      dart_args);
 }
 
-
 Dart_Handle DartUtils::LibraryTagHandler(Dart_LibraryTag tag,
                                          Dart_Handle library,
                                          Dart_Handle url) {
   Dart_Handle library_url = Dart_LibraryUrl(library);
   if (Dart_IsError(library_url)) {
     return library_url;
   }
   if (tag == Dart_kCanonicalizeUrl) {
     return Dart_DefaultCanonicalizeUrl(library_url, url);
   }
@@ skipping 64 matching lines @@
           extension_path);
     }
     return Extensions::LoadExtension(lib_path_str, extension_path, library);
   }
 
   // Handle 'import' or 'part' requests for all other URIs. Call dart code to
   // read the source code asynchronously.
   return LoadDataAsync_Invoke(Dart_NewInteger(tag), url, library_url);
 }
 
-
 static bool CheckMagicNumber(const uint8_t** buf,
                              intptr_t* len,
                              const MagicNumberData& magic_number) {
   if ((*len >= MagicNumberData::kLength) &&
       (memcmp(*buf, magic_number.bytes, MagicNumberData::kLength) == 0)) {
     if (magic_number.should_skip) {
       *buf += MagicNumberData::kLength;
       *len -= MagicNumberData::kLength;
     }
     return true;
   }
   return false;
 }
 
-
 DartUtils::MagicNumber DartUtils::SniffForMagicNumber(const uint8_t** buf,
                                                       intptr_t* len) {
   if (CheckMagicNumber(buf, len, snapshot_magic_number)) {
     return kSnapshotMagicNumber;
   }
 
   if (CheckMagicNumber(buf, len, kernel_magic_number)) {
     return kKernelMagicNumber;
   }
 
   return kUnknownMagicNumber;
 }
 
-
 void DartUtils::WriteMagicNumber(File* file) {
   // Write a magic number and version information into the snapshot file.
   bool bytes_written =
       file->WriteFully(snapshot_magic_number.bytes, MagicNumberData::kLength);
   ASSERT(bytes_written);
 }
 
-
 Dart_Handle DartUtils::LoadScript(const char* script_uri) {
   Dart_TimelineEvent("LoadScript", Dart_TimelineGetMicros(),
                      Dart_GetMainPortId(), Dart_Timeline_Event_Async_Begin, 0,
                      NULL, NULL);
   Dart_Handle uri = Dart_NewStringFromCString(script_uri);
   return LoadDataAsync_Invoke(Dart_Null(), uri, Dart_Null());
 }
 
-
 void FUNCTION_NAME(Builtin_GetCurrentDirectory)(Dart_NativeArguments args) {
   const char* current = Directory::Current();
   if (current != NULL) {
     Dart_SetReturnValue(args, DartUtils::NewString(current));
   } else {
     Dart_Handle err = DartUtils::NewError("Failed to get current directory.");
     Dart_PropagateError(err);
   }
 }
 
-
 Dart_Handle DartUtils::PrepareBuiltinLibrary(Dart_Handle builtin_lib,
                                              Dart_Handle internal_lib,
                                              bool is_service_isolate,
                                              bool trace_loading) {
   // Setup the internal library's 'internalPrint' function.
   Dart_Handle print =
       Dart_Invoke(builtin_lib, NewString("_getPrintClosure"), 0, NULL);
   RETURN_IF_ERROR(print);
   Dart_Handle result =
       Dart_SetField(internal_lib, NewString("_printClosure"), print);
   RETURN_IF_ERROR(result);
 
   if (!is_service_isolate) {
     if (IsWindowsHost()) {
       result = Dart_SetField(builtin_lib, NewString("_isWindows"), Dart_True());
       RETURN_IF_ERROR(result);
     }
     if (trace_loading) {
       result =
           Dart_SetField(builtin_lib, NewString("_traceLoading"), Dart_True());
       RETURN_IF_ERROR(result);
     }
     // Set current working directory.
     result = SetWorkingDirectory();
     RETURN_IF_ERROR(result);
   }
   return Dart_True();
 }
 
-
 Dart_Handle DartUtils::PrepareCoreLibrary(Dart_Handle core_lib,
                                           Dart_Handle builtin_lib,
                                           bool is_service_isolate) {
   if (!is_service_isolate) {
     // Setup the 'Uri.base' getter in dart:core.
     Dart_Handle uri_base =
         Dart_Invoke(builtin_lib, NewString("_getUriBaseClosure"), 0, NULL);
     RETURN_IF_ERROR(uri_base);
     Dart_Handle result =
         Dart_SetField(core_lib, NewString("_uriBaseClosure"), uri_base);
     RETURN_IF_ERROR(result);
   }
   return Dart_True();
 }
 
-
 Dart_Handle DartUtils::PrepareAsyncLibrary(Dart_Handle async_lib,
                                            Dart_Handle isolate_lib) {
   Dart_Handle schedule_immediate_closure = Dart_Invoke(
       isolate_lib, NewString("_getIsolateScheduleImmediateClosure"), 0, NULL);
   RETURN_IF_ERROR(schedule_immediate_closure);
   Dart_Handle args[1];
   args[0] = schedule_immediate_closure;
   return Dart_Invoke(async_lib, NewString("_setScheduleImmediateClosure"), 1,
                      args);
 }
 
-
 Dart_Handle DartUtils::PrepareIOLibrary(Dart_Handle io_lib) {
   return Dart_Invoke(io_lib, NewString("_setupHooks"), 0, NULL);
 }
 
-
 Dart_Handle DartUtils::PrepareIsolateLibrary(Dart_Handle isolate_lib) {
   return Dart_Invoke(isolate_lib, NewString("_setupHooks"), 0, NULL);
 }
 
-
 Dart_Handle DartUtils::SetupServiceLoadPort() {
   // Wait for the service isolate to initialize the load port.
   Dart_Port load_port = Dart_ServiceWaitForLoadPort();
   if (load_port == ILLEGAL_PORT) {
     return Dart_NewUnhandledExceptionError(
         NewDartUnsupportedError("Service did not return load port."));
   }
   return Builtin::SetLoadPort(load_port);
 }
 
-
 Dart_Handle DartUtils::SetupPackageRoot(const char* package_root,
                                         const char* packages_config) {
   // Set up package root if specified.
   if (package_root != NULL) {
     ASSERT(packages_config == NULL);
     Dart_Handle result = NewString(package_root);
     RETURN_IF_ERROR(result);
     const int kNumArgs = 1;
     Dart_Handle dart_args[kNumArgs];
     dart_args[0] = result;
     result = Dart_Invoke(DartUtils::BuiltinLib(), NewString("_setPackageRoot"),
                          kNumArgs, dart_args);
     RETURN_IF_ERROR(result);
   } else if (packages_config != NULL) {
     Dart_Handle result = NewString(packages_config);
     RETURN_IF_ERROR(result);
     const int kNumArgs = 1;
     Dart_Handle dart_args[kNumArgs];
     dart_args[0] = result;
     result = Dart_Invoke(DartUtils::BuiltinLib(), NewString("_setPackagesMap"),
                          kNumArgs, dart_args);
     RETURN_IF_ERROR(result);
   }
   return Dart_True();
 }
 
-
 Dart_Handle DartUtils::PrepareForScriptLoading(bool is_service_isolate,
                                                bool trace_loading) {
   // First ensure all required libraries are available.
   Dart_Handle url = NewString(kCoreLibURL);
   RETURN_IF_ERROR(url);
   Dart_Handle core_lib = Dart_LookupLibrary(url);
   RETURN_IF_ERROR(core_lib);
   url = NewString(kAsyncLibURL);
   RETURN_IF_ERROR(url);
   Dart_Handle async_lib = Dart_LookupLibrary(url);
@@ skipping 31 matching lines @@
   RETURN_IF_ERROR(result);
 
   RETURN_IF_ERROR(PrepareAsyncLibrary(async_lib, isolate_lib));
   RETURN_IF_ERROR(
       PrepareCoreLibrary(core_lib, builtin_lib, is_service_isolate));
   RETURN_IF_ERROR(PrepareIsolateLibrary(isolate_lib));
   RETURN_IF_ERROR(PrepareIOLibrary(io_lib));
   return result;
 }
 
-
 Dart_Handle DartUtils::SetupIOLibrary(const char* script_uri) {
   Dart_Handle io_lib_url = NewString(kIOLibURL);
   RETURN_IF_ERROR(io_lib_url);
   Dart_Handle io_lib = Dart_LookupLibrary(io_lib_url);
   RETURN_IF_ERROR(io_lib);
   Dart_Handle platform_type = GetDartType(DartUtils::kIOLibURL, "_Platform");
   RETURN_IF_ERROR(platform_type);
   Dart_Handle script_name = NewString("_nativeScript");
   RETURN_IF_ERROR(script_name);
   Dart_Handle dart_script = NewString(script_uri);
   RETURN_IF_ERROR(dart_script);
   Dart_Handle set_script_name =
       Dart_SetField(platform_type, script_name, dart_script);
   RETURN_IF_ERROR(set_script_name);
   return Dart_Null();
 }
 
-
 bool DartUtils::PostNull(Dart_Port port_id) {
   // Post a message with just the null object.
   return Dart_PostCObject(port_id, CObject::Null()->AsApiCObject());
 }
 
-
 bool DartUtils::PostInt32(Dart_Port port_id, int32_t value) {
   // Post a message with the integer value.
   int32_t min = 0xc0000000;  // -1073741824
   int32_t max = 0x3fffffff;  // 1073741823
   ASSERT(min <= value && value < max);
   Dart_CObject object;
   object.type = Dart_CObject_kInt32;
   object.value.as_int32 = value;
   return Dart_PostCObject(port_id, &object);
 }
 
-
 bool DartUtils::PostInt64(Dart_Port port_id, int64_t value) {
   // Post a message with the integer value.
   Dart_CObject object;
   object.type = Dart_CObject_kInt64;
   object.value.as_int64 = value;
   return Dart_PostCObject(port_id, &object);
 }
 
-
 Dart_Handle DartUtils::GetDartType(const char* library_url,
                                    const char* class_name) {
   return Dart_GetType(Dart_LookupLibrary(NewString(library_url)),
                       NewString(class_name), 0, NULL);
 }
 
-
 Dart_Handle DartUtils::NewDartOSError() {
   // Extract the current OS error.
   OSError os_error;
   return NewDartOSError(&os_error);
 }
 
-
 Dart_Handle DartUtils::NewDartOSError(OSError* os_error) {
   // Create a dart:io OSError object with the information retrieved from the OS.
   Dart_Handle type = GetDartType(kIOLibURL, "OSError");
   ASSERT(!Dart_IsError(type));
   Dart_Handle args[2];
   args[0] = NewString(os_error->message());
   args[1] = Dart_NewInteger(os_error->code());
   return Dart_New(type, Dart_Null(), 2, args);
 }
 
-
 Dart_Handle DartUtils::NewDartExceptionWithOSError(const char* library_url,
                                                    const char* exception_name,
                                                    const char* message,
                                                    Dart_Handle os_error) {
   // Create a Dart Exception object with a message and an OSError.
   Dart_Handle type = GetDartType(library_url, exception_name);
   ASSERT(!Dart_IsError(type));
   Dart_Handle args[2];
   args[0] = NewString(message);
   args[1] = os_error;
   return Dart_New(type, Dart_Null(), 2, args);
 }
 
-
 Dart_Handle DartUtils::NewDartExceptionWithMessage(const char* library_url,
                                                    const char* exception_name,
                                                    const char* message) {
   // Create a Dart Exception object with a message.
   Dart_Handle type = GetDartType(library_url, exception_name);
   ASSERT(!Dart_IsError(type));
   if (message != NULL) {
     Dart_Handle args[1];
     args[0] = NewString(message);
     return Dart_New(type, Dart_Null(), 1, args);
   } else {
     return Dart_New(type, Dart_Null(), 0, NULL);
   }
 }
 
-
 Dart_Handle DartUtils::NewDartArgumentError(const char* message) {
   return NewDartExceptionWithMessage(kCoreLibURL, "ArgumentError", message);
 }
 
-
 Dart_Handle DartUtils::NewDartUnsupportedError(const char* message) {
   return NewDartExceptionWithMessage(kCoreLibURL, "UnsupportedError", message);
 }
 
-
 Dart_Handle DartUtils::NewDartIOException(const char* exception_name,
                                           const char* message,
                                           Dart_Handle os_error) {
   // Create a dart:io exception object of the given type.
   return NewDartExceptionWithOSError(kIOLibURL, exception_name, message,
                                      os_error);
 }
 
-
 Dart_Handle DartUtils::NewError(const char* format, ...) {
   va_list args;
   va_start(args, format);
   intptr_t len = vsnprintf(NULL, 0, format, args);
   va_end(args);
 
   char* buffer = reinterpret_cast<char*>(Dart_ScopeAllocate(len + 1));
   MSAN_UNPOISON(buffer, (len + 1));
   va_list args2;
   va_start(args2, format);
   vsnprintf(buffer, (len + 1), format, args2);
   va_end(args2);
 
   return Dart_NewApiError(buffer);
 }
 
-
 Dart_Handle DartUtils::NewInternalError(const char* message) {
   return NewDartExceptionWithMessage(kCoreLibURL, "_InternalError", message);
 }
 
-
 bool DartUtils::SetOriginalWorkingDirectory() {
   original_working_directory = Directory::CurrentNoScope();
   return original_working_directory != NULL;
 }
 
-
 Dart_Handle DartUtils::GetCanonicalizableWorkingDirectory() {
   const char* str = DartUtils::original_working_directory;
   intptr_t len = strlen(str);
   if ((str[len] == '/') || (IsWindowsHost() && str[len] == '\\')) {
     return Dart_NewStringFromCString(str);
   }
   char* new_str = reinterpret_cast<char*>(Dart_ScopeAllocate(len + 2));
   snprintf(new_str, (len + 2), "%s%s", str, File::PathSeparator());
   return Dart_NewStringFromCString(new_str);
 }
 
-
 // Statically allocated Dart_CObject instances for immutable
 // objects. As these will be used by different threads the use of
 // these depends on the fact that the marking internally in the
 // Dart_CObject structure is not marking simple value objects.
 Dart_CObject CObject::api_null_ = {Dart_CObject_kNull, {0}};
 Dart_CObject CObject::api_true_ = {Dart_CObject_kBool, {true}};
 Dart_CObject CObject::api_false_ = {Dart_CObject_kBool, {false}};
 CObject CObject::null_ = CObject(&api_null_);
 CObject CObject::true_ = CObject(&api_true_);
 CObject CObject::false_ = CObject(&api_false_);
 
-
 CObject* CObject::Null() {
   return &null_;
 }
 
-
 CObject* CObject::True() {
   return &true_;
 }
 
-
 CObject* CObject::False() {
   return &false_;
 }
 
-
 CObject* CObject::Bool(bool value) {
   return value ? &true_ : &false_;
 }
 
-
 Dart_CObject* CObject::New(Dart_CObject_Type type, int additional_bytes) {
   Dart_CObject* cobject = reinterpret_cast<Dart_CObject*>(
       Dart_ScopeAllocate(sizeof(Dart_CObject) + additional_bytes));
   cobject->type = type;
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewInt32(int32_t value) {
   Dart_CObject* cobject = New(Dart_CObject_kInt32);
   cobject->value.as_int32 = value;
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewInt64(int64_t value) {
   Dart_CObject* cobject = New(Dart_CObject_kInt64);
   cobject->value.as_int64 = value;
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewIntptr(intptr_t value) {
   // Pointer values passed as intptr_t are always send as int64_t.
   Dart_CObject* cobject = New(Dart_CObject_kInt64);
   cobject->value.as_int64 = value;
   return cobject;
 }
 
-
 static bool IsHexDigit(char c) {
   return (('0' <= c) && (c <= '9')) || (('A' <= c) && (c <= 'F')) ||
          (('a' <= c) && (c <= 'f'));
 }
 
-
 static int HexDigitToInt(char c) {
   if (('0' <= c) && (c <= '9')) return c - '0';
   if (('A' <= c) && (c <= 'F')) return 10 + (c - 'A');
   return 10 + (c - 'a');
 }
 
-
 Dart_CObject* CObject::NewBigint(const char* hex_value) {
   if (hex_value == NULL) {
     return NULL;
   }
   bool neg = false;
   if (hex_value[0] == '-') {
     neg = true;
     hex_value++;
   }
   if ((hex_value[0] != '0') ||
@@ skipping 35 matching lines @@
     used--;
   }
   cobject->value.as_bigint.used = used;
   if (used == 0) {
     neg = false;
   }
   cobject->value.as_bigint.neg = neg;
   return cobject;
 }
 
-
 static char IntToHexDigit(int i) {
   ASSERT(0 <= i && i < 16);
   if (i < 10) return static_cast<char>('0' + i);
   return static_cast<char>('A' + (i - 10));
 }
 
-
 char* CObject::BigintToHexValue(Dart_CObject* bigint) {
   ASSERT(bigint->type == Dart_CObject_kBigint);
   const intptr_t used = bigint->value.as_bigint.used;
   if (used == 0) {
     const char* zero = "0x0";
     const size_t len = strlen(zero) + 1;
     char* hex_value = reinterpret_cast<char*>(malloc(len));
     strncpy(hex_value, zero, len);
     return hex_value;
   }
@@ skipping 33 matching lines @@
   }
   hex_value[--pos] = 'x';
   hex_value[--pos] = '0';
   if (neg) {
     hex_value[--pos] = '-';
   }
   ASSERT(pos == 0);
   return hex_value;
 }
 
-
 Dart_CObject* CObject::NewDouble(double value) {
   Dart_CObject* cobject = New(Dart_CObject_kDouble);
   cobject->value.as_double = value;
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewString(intptr_t length) {
   Dart_CObject* cobject = New(Dart_CObject_kString, length + 1);
   cobject->value.as_string = reinterpret_cast<char*>(cobject + 1);
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewString(const char* str) {
   intptr_t length = strlen(str);
   Dart_CObject* cobject = NewString(length);
   memmove(cobject->value.as_string, str, length + 1);
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewArray(intptr_t length) {
   Dart_CObject* cobject =
       New(Dart_CObject_kArray, length * sizeof(Dart_CObject*));  // NOLINT
   cobject->value.as_array.length = length;
   cobject->value.as_array.values =
       reinterpret_cast<Dart_CObject**>(cobject + 1);
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewUint8Array(intptr_t length) {
   Dart_CObject* cobject = New(Dart_CObject_kTypedData, length);
   cobject->value.as_typed_data.type = Dart_TypedData_kUint8;
   cobject->value.as_typed_data.length = length;
   cobject->value.as_typed_data.values = reinterpret_cast<uint8_t*>(cobject + 1);
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewUint32Array(intptr_t length) {
   Dart_CObject* cobject = New(Dart_CObject_kTypedData, 4 * length);
   cobject->value.as_typed_data.type = Dart_TypedData_kUint32;
   cobject->value.as_typed_data.length = length;
   cobject->value.as_typed_data.values = reinterpret_cast<uint8_t*>(cobject + 1);
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewExternalUint8Array(
     intptr_t length,
     uint8_t* data,
     void* peer,
     Dart_WeakPersistentHandleFinalizer callback) {
   Dart_CObject* cobject = New(Dart_CObject_kExternalTypedData);
   cobject->value.as_external_typed_data.type = Dart_TypedData_kUint8;
   cobject->value.as_external_typed_data.length = length;
   cobject->value.as_external_typed_data.data = data;
   cobject->value.as_external_typed_data.peer = peer;
   cobject->value.as_external_typed_data.callback = callback;
   return cobject;
 }
 
-
 Dart_CObject* CObject::NewIOBuffer(int64_t length) {
   // Make sure that we do not have an integer overflow here. Actual check
   // against max elements will be done at the time of writing, as the constant
   // is not part of the public API.
   if ((length < 0) || (length > kIntptrMax)) {
     return NULL;
   }
   uint8_t* data = IOBuffer::Allocate(static_cast<intptr_t>(length));
   ASSERT(data != NULL);
   return NewExternalUint8Array(static_cast<intptr_t>(length), data, data,
                                IOBuffer::Finalizer);
 }
 
-
 void CObject::FreeIOBufferData(Dart_CObject* cobject) {
   ASSERT(cobject->type == Dart_CObject_kExternalTypedData);
   cobject->value.as_external_typed_data.callback(
       NULL, NULL, cobject->value.as_external_typed_data.peer);
   cobject->value.as_external_typed_data.data = NULL;
 }
 
-
 CObject* CObject::IllegalArgumentError() {
   CObjectArray* result = new CObjectArray(CObject::NewArray(1));
   result->SetAt(0, new CObjectInt32(CObject::NewInt32(kArgumentError)));
   return result;
 }
 
-
 CObject* CObject::FileClosedError() {
   CObjectArray* result = new CObjectArray(CObject::NewArray(1));
   result->SetAt(0, new CObjectInt32(CObject::NewInt32(kFileClosedError)));
   return result;
 }
 
-
 CObject* CObject::NewOSError() {
   OSError os_error;
   return NewOSError(&os_error);
 }
 
 CObject* CObject::NewOSError(OSError* os_error) {
   CObject* error_message =
       new CObjectString(CObject::NewString(os_error->message()));
   CObjectArray* result = new CObjectArray(CObject::NewArray(3));
   result->SetAt(0, new CObjectInt32(CObject::NewInt32(kOSError)));
   result->SetAt(1, new CObjectInt32(CObject::NewInt32(os_error->code())));
   result->SetAt(2, error_message);
   return result;
 }
 
 }  // namespace bin
 }  // namespace dart