Mock up code completion.

dart/site/try/src/compiler_isolate.dart

 // Copyright (c) 2013, 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.
 
 library compiler_isolate;
 
 import 'dart:async';
 import 'dart:html';
 import 'dart:isolate';
 import 'dart:convert' show JSON;
 
-import '../../../sdk/lib/_internal/compiler/compiler.dart' as compiler;
+import 'compilation.dart' show PRIVATE_SCHEME;
+
+import 'package:compiler/compiler.dart' as compiler;
 
 const bool THROW_ON_ERROR = false;
 
 final cachedSources = new Map<Uri, String>();
 
 Uri sdkLocation;
 List options = [];
 
 compile(source, SendPort replyTo) {
   if (sdkLocation == null) {
@@ skipping 34 matching lines @@
       return new Future.value(value);
     } else if (uri.scheme == 'http' || uri.scheme == 'https') {
       var value = cachedSources.putIfAbsent(uri, () {
         var request = new HttpRequest();
         request.open('GET', '$uri', async: false);
         request.send(null);
         return request.responseText;
       });
       charactersRead += value.length;
       return new Future.value(value);
-    } else if ('$uri' == 'memory:/main.dart') {
+    } else if ('$uri' == '$PRIVATE_SCHEME:/main.dart') {
       charactersRead += source.length;
       return new Future.value(source);
+    } else if (uri.scheme == PRIVATE_SCHEME) {
+      return HttpRequest.getString('project${uri.path}');
     }
     throw new Exception('Error: Cannot read: $uri');
   }
   void handler(Uri uri, int begin, int end,
                String message, compiler.Diagnostic kind) {
     replyTo.send(['diagnostic', { 'uri': '$uri',
                                   'begin': begin,
                                   'end': end,
                                   'message': message,
                                   'kind': kind.name }]);
     if (THROW_ON_ERROR && kind == compiler.Diagnostic.ERROR) {
       throw new Exception('Throw on error');
     }
   }
-  compiler.compile(Uri.parse('memory:/main.dart'),
+  compiler.compile(Uri.parse('$PRIVATE_SCHEME:/main.dart'),
                    sdkLocation,
-                   null,
+                   Uri.parse('packages/'),
                    inputProvider,
                    handler,
                    options).then((js) {
     try {
       if (js == null) {
         if (!options.contains('--analyze-only')) replyTo.send('failed');
       } else {
         var url;
         if (options.contains('--verbose')) {
           handler(null, 0, 0,
@@ skipping 14 matching lines @@
         } else {
           replyTo.send(['code', js]);
         }
       }
     } catch (e, trace) {
       replyTo.send(['crash', '$e, $trace']);
     }
     replyTo.send('done');
   });
 }