Adds facilities for extracting Intl.message calls and generating code from translations

pkg/intl/lib/message_lookup_local.dart

 // 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.
 
 /**
  * Message/plural format library with locale support. This can have different
  * implementations based on the mechanism for finding the localized versions
  * of messages. This version expects them to be in a library named e.g.
  * 'messages_en_US'. The prefix is set in the [initializeMessages] call, which
  * must be made for a locale before any lookups can be done.
@@ skipping 71 matching lines @@
    * The values of [desc] and [examples] are not used at run-time but are only
    * made available to the translators, so they MUST be simple Strings available
    * at compile time: no String interpolation or concatenation.
    * The expected usage of this is inside a function that takes as parameters
    * the variables used in the interpolated string.
    *
    * Ultimately, the information about the enclosing function and its arguments
    * will be extracted automatically but for the time being it must be passed
    * explicitly in the [name] and [args] arguments.
    */
-  Future<String> lookupMessage(String message_str, [final String desc='',
+  String lookupMessage(String message_str, [final String desc='',
       final Map examples=const {}, String locale,
       String name, List<String> args]) {
-    if (name == null) return new Future.immediate(message_str);
+    if (name == null) return message_str;
     // The translations also make use of Intl.message, so we need to not
     // recurse and just stop when we find the first substitution.
-    if (_lookupInProgress) return new Future.immediate(message_str);
+    if (_lookupInProgress) return message_str;
     _lookupInProgress = true;
     var result;
     try {
       var actualLocale = (locale == null) ? Intl.getCurrentLocale() : locale;
       // For this usage, if the locale doesn't exist for messages, just return
       // it and we'll fall back to the original version.
       var verifiedLocale =
           Intl.verifiedLocale(
               actualLocale,
               localeExists,
               onFailure: (locale)=>locale);
       LibraryMirror messagesForThisLocale =
           _libraries['$_sourcePrefix$verifiedLocale'];
       if (messagesForThisLocale == null) {
-        return new Future.immediate(message_str);
+        return message_str;
       }
       MethodMirror localized = messagesForThisLocale.functions[name];
-      if (localized == null) return new Future.immediate(message_str);
+      if (localized == null) return message_str;
       result = messagesForThisLocale.invoke(localized.simpleName, args);
     } finally {
       _lookupInProgress = false;
     }
-    return result.then((value) => value.reflectee);
+    return deprecatedFutureValue(result).reflectee;

[Emily Fortuna, 2013/03/13 18:54:43]

what's the plan for getting rid of this call? Need to add a TODO?

[Alan Knight, 2013/03/14 17:49:05]

Oops. This whole file should have been deleted. message_lookup_by_library is a
modified version of it, and looking up intl libraries via mirrors was a stopgap
that's removed in favor of the code generation/lazy loading approach.

   }
 }