Analyze Dart scripts in HTML files.

editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/analysis/AnalysisUtility.java

Index: editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/analysis/AnalysisUtility.java
diff --git a/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/analysis/AnalysisUtility.java b/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/analysis/AnalysisUtility.java
index d2bf1cdc57c311512bd03a135f22bcbc1fa2dc6b..c956c6bb17d09f516c80119e99214fd30fbedef3 100644
--- a/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/analysis/AnalysisUtility.java
+++ b/editor/tools/plugins/com.google.dart.tools.core/src/com/google/dart/tools/core/analysis/AnalysisUtility.java
@@ -29,6 +29,7 @@ import com.google.dart.compiler.ast.LibraryUnit;
 import com.google.dart.compiler.parser.DartParser;
 import com.google.dart.compiler.parser.DartPrefixParser;
 import com.google.dart.tools.core.DartCore;
+import com.google.dart.tools.core.html.HtmlAnalyzeHelper;
 import com.google.dart.tools.core.internal.builder.CachingArtifactProvider;
 import com.google.dart.tools.core.internal.model.PackageLibraryManagerProvider;
 import com.google.dart.tools.core.model.DartSdkManager;
@@ -210,8 +211,29 @@ class AnalysisUtility {
    * 
    * @return the library source (not <code>null</code>)
    */
-  static UrlLibrarySource toLibrarySource(Context context, File libraryFile) {
-    URI libUri = toLibraryUri(context, libraryFile);
+  static UrlLibrarySource toLibrarySource(Context context, final File libraryFile) {
+    final URI libUri = toLibraryUri(context, libraryFile);
+    // may be this library is actually Dart script extracted form HTML file
+    {
+      final File htmlFile = HtmlAnalyzeHelper.getSourceHtmlFile(libraryFile);
+      if (htmlFile != libraryFile) {
+        return new UrlLibrarySource(libUri, context.getLibraryManager()) {
+          @Override
+          public DartSource getSourceFor(String relPath) {
+            if (libraryFile.getName().equals(relPath)) {
+              return createDartSource(libUri, relPath, this, packageLibraryManager);
+            }
+            return super.getSourceFor(relPath);
+          }
+
+          @Override
+          protected URI getImportBaseUri() {
+            return htmlFile.toURI();
+          }
+        };
+      }
+    }
+    // normal library
     return new UrlLibrarySource(libUri, context.getLibraryManager());
   }