Fix bug 578

frog/presubmit.py

 #!/usr/bin/env python
 # Copyright (c) 2011, 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.
 
 import os
 import subprocess
 import sys
 import time
 
@@ skipping 46 matching lines @@
   RunCommand('./frog.py',
              '--vm_flags=--compile_all --enable_type_checks --enable_asserts',
              '--', '--compile_all', '--enable_type_checks', '--out=frogsh',
              'frog.dart')
   elapsed = time.time() - start
   mode = 'in checked mode + compile all'
   print 'Compiling on Dart VM took %s seconds %s' % (b(elapsed), b(mode))
 
   # Selfhost Checked
   start = time.time()
-  RunCommand('./frogsh', '--out=frogsh', '--enable_type_checks', 'frog.dart',
+  RunCommand('./frogsh', '--out=frogsh',
+             '--enable_type_checks', '--warnings_as_errors', 'frog.dart',
              '--enable_type_checks', 'tests/hello.dart', verbose=True)
   elapsed = time.time() - start
   size = os.path.getsize('./frogsh') / 1024
   print 'Bootstrapping took %s seconds %s' % (b(elapsed), b('in checked mode'))
   print 'Generated %s frogsh is %s kB' % (b('checked'), b(size))
 
   RunCommand('../tools/build.py', '--mode=release')
   test_cmd = ['../tools/test.py', '--report', '--timeout=10',
               '--progress=color', '--mode=release', '--checked']
   if args[1:]:
@@ skipping 16 matching lines @@
     cmd = test_cmd + ['--component=frogsh,leg', 'language', 'corelib', 'leg',
                       'isolate', 'peg', 'leg_only', 'frog', 'css']
     RunCommand(*cmd, verbose=True)
 
 if __name__ == '__main__':
   try:
     sys.exit(main(sys.argv))
   except Error as e:
     sys.stderr.write('%s\n' % e)
     sys.exit(1)