Remove directives validation.

pkg/analyzer/lib/src/task/dart.dart

 // Copyright (c) 2015, 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 analyzer.src.task.dart;
 
 import 'dart:collection';
 import 'dart:math' as math;
 
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 2225 matching lines @@
   @override
   TaskDescriptor get descriptor => DESCRIPTOR;
 
   @override
   void internalPerform() {
     RecordingErrorListener errorListener = new RecordingErrorListener();
     Source source = getRequiredSource();
     errorReporter = new ErrorReporter(errorListener, source);
     TypeProvider typeProvider = context.typeProvider;
     //
-    // Prepare inputs. TODO
+    // Prepare inputs.
     //
     CompilationUnit unit = getRequiredInput(UNIT_INPUT);
     CompilationUnitElement unitElement = unit.element;
     LibraryElement libraryElement = unitElement.library;
     //
-    // Validate the directives
-    //
-    _validateDirectives(unit);
-    //
-    // Use the ErrorVerifier to compute the rest of the errors.
+    // Use the ErrorVerifier to compute errors.
     //
     ErrorVerifier errorVerifier = new ErrorVerifier(errorReporter,
         libraryElement, typeProvider, new InheritanceManager(libraryElement));
     unit.accept(errorVerifier);
     //
     // Record outputs.
     //
     outputs[VERIFY_ERRORS] = errorListener.errors;
   }
 
   /**
-   * Check each directive in the given [unit] to see if the referenced source
-   * exists and report an error if it does not.
-   */
-  void _validateDirectives(CompilationUnit unit) {
-    for (Directive directive in unit.directives) {
-      if (directive is UriBasedDirective) {
-        _validateReferencedSource(directive);
-      }
-    }
-  }
-
-  /**
-   * Check the given [directive] to see if the referenced source exists and
-   * report an error if it does not.
-   */
-  void _validateReferencedSource(UriBasedDirective directive) {
-    Source source = directive.source;
-    if (source != null) {
-      if (context.exists(source)) {
-        return;
-      }
-    } else {
-      // Don't report errors already reported by ParseDartTask.resolveDirective
-      if (directive.validate() != null) {
-        return;
-      }
-    }
-    StringLiteral uriLiteral = directive.uri;
-    errorReporter.reportErrorForNode(CompileTimeErrorCode.URI_DOES_NOT_EXIST,
-        uriLiteral, [directive.uriContent]);
-  }
-
-  /**
    * Return a map from the names of the inputs of this kind of task to the task
    * input descriptors describing those inputs for a task with the
    * given [target].
    */
   static Map<String, TaskInput> buildInputs(LibraryUnitTarget target) {
     return <String, TaskInput>{UNIT_INPUT: RESOLVED_UNIT.of(target)};
   }
 
   /**
    * Create a [VerifyUnitTask] based on the given [target] in
    * the given [context].
    */
   static VerifyUnitTask createTask(
       AnalysisContext context, AnalysisTarget target) {
     return new VerifyUnitTask(context, target);
   }
 }