frog: life is better with colors :)

frog/frog_options.dart

 // 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.
 
 /** General options used by the compiler. */
 FrogOptions options;
 
 /** Extracts options from command-line arguments. */
 void parseOptions(String homedir, List<String> args, FileSystem files) {
   assert(options == null);
@@ skipping 26 matching lines @@
   bool forceDynamic = false;
   bool dietParse = false;
   bool compileOnly = false;
 
   // Message support
   bool throwOnErrors = false;
   bool throwOnWarnings = false;
   bool throwOnFatal = false;
   bool showInfo = false;
   bool showWarnings = true;
+  bool useColors = true;
 
   /**
    * Options to be used later for passing to the generated code. These are all
    * the arguments after the first dart script, if any.
    */
   List<String> childArgs;
 
   FrogOptions(String homedir, List<String> args, FileSystem files) {
     if (config == 'dev') {
       libDir = joinPaths(homedir, '/lib'); // Default value for --libdir.
     } else if (config == 'sdk') {
       libDir = joinPaths(homedir, '/../lib');
     } else {
       world.error('Invalid configuration $config', null);
       throw('Invalid configuration');
     }
 
     bool ignoreUnrecognizedFlags = false;
     bool passedLibDir = false;
     childArgs = [];
 
     // Start from 2 to skip arguments representing the compiler command
     // (node/python followed by frogsh/frog.py).
-    // TODO(jimhug): break on switch cases seems broken?
     loop: for (int i = 2; i < args.length; i++) {
       var arg = args[i];
 
       switch (arg) {
         case '--enable_leg':
           enableLeg = true;
-          continue loop;
+          break;
 
         case '--leg_only':
           enableLeg = true;
           legOnly = true;
-          continue loop;
+          break;
 
         case '--enable_asserts':
           enableAsserts = true;
-          continue loop;
+          break;
 
         case '--enable_type_checks':
           enableTypeChecks = true;
           // This flag also enables asserts in VM
           enableAsserts = true;
-          continue loop;
+          break;
 
         case '--verify_implements':
           verifyImplements = true;
-          continue loop;
+          break;
 
         case '--compile_all':
           compileAll = true;
-          continue loop;
+          break;
 
         case '--diet-parse':
           dietParse = true;
-          continue loop;
+          break;
 
         case '--ignore-unrecognized-flags':
           ignoreUnrecognizedFlags = true;
-          continue loop;
+          break;
 
         case '--verbose':
           showInfo = true;
-          continue loop;
+          break;
 
         case '--suppress_warnings':
           showWarnings = false;
-          continue loop;
+          break;
 
         case '--warnings_as_errors':
           warningsAsErrors = true;
-          continue loop;
+          break;
 
         case '--throw_on_errors':
           throwOnErrors = true;
-          continue loop;
+          break;
 
         case '--throw_on_warnings':
           throwOnWarnings = true;
-          continue loop;
+          break;
 
         case '--compile-only':
           // As opposed to compiling and running, the default behavior.
           compileOnly = true;
-          continue loop;
+          break;
 
         case '--force_dynamic':
           forceDynamic = true;
-          continue loop;
+          break;
+
+        case '--no_colors':
+          useColors = false;
+          break;
 
         default:
           if (arg.endsWith('.dart')) {
             dartScript = arg;
             childArgs = args.getRange(i + 1, args.length - i - 1);
             break loop;
           } else if (arg.startsWith('--out=')) {
             outfile = arg.substring('--out='.length);
           } else if (arg.startsWith('--libdir=')) {
             libDir = arg.substring('--libdir='.length);
@@ skipping 11 matching lines @@
       // Try locally
       var temp = 'frog/lib';
       if (files.fileExists(temp)) {
         libDir = temp;
       } else {
         libDir = 'lib';
       }
     }
   }
 }