New analyzer snapshot.

pkg/analyzer/lib/src/generated/sdk_io.dart

 // Copyright (c) 2014, 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.
 
 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.sdk.io;
 
 import 'java_core.dart';
@@ skipping 65 matching lines @@
    * The file containing the VM executable.
    */
   JavaFile _vmExecutable;
 
   /**
    * A mapping from Dart library URI's to the library represented by that URI.
    */
   LibraryMap _libraryMap;
 
   /**
+   * The default SDK, or `null` if the default SDK either has not yet been created or cannot
+   * be created for some reason.
+   */
+  static DirectoryBasedDartSdk _DEFAULT_SDK;
+
+  /**
    * The name of the directory within the SDK directory that contains executables.
    */
   static String _BIN_DIRECTORY_NAME = "bin";
 
   /**
    * The name of the directory on non-Mac that contains dartium.
    */
   static String _DARTIUM_DIRECTORY_NAME = "chromium";
 
   /**
@@ skipping 89 matching lines @@
    */
   static String _VM_EXECUTABLE_NAME = "dart";
 
   /**
    * Return the default Dart SDK, or `null` if the directory containing the default SDK cannot
    * be determined (or does not exist).
    *
    * @return the default Dart SDK
    */
   static DirectoryBasedDartSdk get defaultSdk {
-    JavaFile sdkDirectory = defaultSdkDirectory;
-    if (sdkDirectory == null) {
-      return null;
+    if (_DEFAULT_SDK == null) {
+      JavaFile sdkDirectory = defaultSdkDirectory;
+      if (sdkDirectory == null) {
+        return null;
+      }
+      _DEFAULT_SDK = new DirectoryBasedDartSdk(sdkDirectory);
     }
-    return new DirectoryBasedDartSdk(sdkDirectory);
+    return _DEFAULT_SDK;
   }
 
   /**
    * Return the default directory for the Dart SDK, or `null` if the directory cannot be
    * determined (or does not exist). The default directory is provided by a [System] property
    * named `com.google.dart.sdk`.
    *
    * @return the default directory for the Dart SDK
    */
   static JavaFile get defaultSdkDirectory {
@@ skipping 386 matching lines @@
     Parser parser = new Parser(source, errorListener);
     CompilationUnit unit = parser.parseCompilationUnit(scanner.tokenize());
     SdkLibrariesReader_LibraryBuilder libraryBuilder = new SdkLibrariesReader_LibraryBuilder(_useDart2jsPaths);
     // If any syntactic errors were found then don't try to visit the AST structure.
     if (!errorListener.errorReported) {
       unit.accept(libraryBuilder);
     }
     return libraryBuilder.librariesMap;
   }
 }