Expose liveedit compile error data in SDK

plugins/org.chromium.sdk/src/org/chromium/sdk/UpdatableScript.java

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.sdk;
 
 import java.util.List;
 
 /**
  * This interface is a part of {@link Script} interface. It covers live editing support.
@@ skipping 20 matching lines @@
      * Script text change has succeeded or was successfully pre-calculated (in preview mode).
      * {@link DebugEventListener#scriptContentChanged} will
      * be called additionally. Besides, a current context may be dismissed and recreated after this
      * event. The order of all listed event notifications is not currently specified.
      * @param report unspecified implementation-dependent report for debugging purposes;
      *        may be null
      * @param changeDescription describes live editing change that has been applied or is planned
      *        to be applied; may be null if backend or VM does not support
      */
     void success(Object report, ChangeDescription changeDescription);
-    void failure(String message);
+    void failure(String message, Failure details);
   }
 
   /**
    * An interface that explains what has happened/going to happen within script update action.
    */
   interface ChangeDescription {
     /**
      * @return the root of the function change tree
      */
     OldFunctionNode getChangeTree();
@@ skipping 56 matching lines @@
     FunctionPositions getNewPositions();
 
     List<? extends NewFunctionNode> newChildren();
   }
 
   /**
    * Represents a brand new function in the changed script, that has no corresponding old function.
    */
   interface NewFunctionNode extends FunctionNode<NewFunctionNode> {
   }
+
+  /**
+   * Specifies failure type.
+   */
+  interface Failure {
+    <R> R accept(Visitor<R> visitor);
+
+    interface Visitor<R> {
+      R visitUnspecified();
+      R visitCompileError(CompileErrorFailure compileErrorFailure);
+    }
+
+    Failure UNSPECIFIED = new Failure() {
+      @Override public <R> R accept(Visitor<R> visitor) {
+        return visitor.visitUnspecified();
+      }
+    };
+  }
+
+  /**
+   * Describes failure caused by compile error.
+   */
+  interface CompileErrorFailure extends Failure {
+    /**
+     * A string message returned by JavaScript compiler.
+     */
+    String getCompilerMessage();
+
+    /** @return error start position in text. */
+    TextStreamPosition getStartPosition();
+
+    /** @return error end position in text. */
+    TextStreamPosition getEndPosition();
+  }
 }