Factor out snapshot helpers from main.cc.

runtime/bin/exit.h

Index: runtime/bin/exit.h
diff --git a/runtime/bin/exit.h b/runtime/bin/exit.h
new file mode 100644
index 0000000000000000000000000000000000000000..86dd63b97b0f8999493354f62b692425b15abb2e
--- /dev/null
+++ b/runtime/bin/exit.h
@@ -0,0 +1,55 @@
+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file

[zra, 2017/02/09 16:15:38]

2017

[rmacnak, 2017/02/10 02:11:56]

Done.

[rmacnak, 2017/02/10 02:11:56]

Done.

+// 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.
+
+#ifndef RUNTIME_BIN_EXIT_H_
+#define RUNTIME_BIN_EXIT_H_
+
+#include "bin/log.h"
+#include "bin/platform.h"
+#include "bin/process.h"
+#include "bin/eventhandler.h"
+#include "include/dart_api.h"
+#include "platform/assert.h"
+#include "platform/globals.h"
+
+namespace dart {
+namespace bin {
+
+// Exit code indicating an internal Dart Frontend error.
+static const int kDartFrontendErrorExitCode = 252;
+// Exit code indicating an API error.
+static const int kApiErrorExitCode = 253;
+// Exit code indicating a compilation error.
+static const int kCompilationErrorExitCode = 254;
+// Exit code indicating an unhandled error that is not a compilation error.
+static const int kErrorExitCode = 255;
+// Exit code indicating a vm restart request.  Never returned to the user.
+static const int kRestartRequestExitCode = 1000;
+
+static void ErrorExit(int exit_code, const char* format, ...) {

[zra, 2017/02/09 16:15:38]

Maybe rename this file error_exit.h and make a .cc file for this function.

[rmacnak, 2017/02/10 02:11:56]

Done.

+  va_list arguments;
+  va_start(arguments, format);
+  Log::VPrintErr(format, arguments);
+  va_end(arguments);
+
+  Dart_ExitScope();
+  Dart_ShutdownIsolate();
+
+  // Terminate process exit-code handler.
+  Process::TerminateExitCodeHandler();
+
+  char* error = Dart_Cleanup();
+  if (error != NULL) {
+    Log::PrintErr("VM cleanup failed: %s\n", error);
+    free(error);
+  }
+
+  EventHandler::Stop();
+  Platform::Exit(exit_code);
+}
+
+}  // namespace bin
+}  // namespace dart
+
+#endif  // RUNTIME_BIN_EXIT_H_